Liga-System/.venv/lib/python3.12/site-packages/nicegui/elements/echart/dist/index-DUQY-caJ.js

import { u as use, i as install$g, a as install$h, b as installLabelLayout, m as map$1, c as isArray, p as parse$1, R as Rect, g as getECData, e as each, d as indexOf, r as registerPostInit, f as registerPostUpdate, h as registerPreprocessor, Z as ZRImage, C as ComponentModel, j as merge, k as defaults, l as init, n as brushSingle, M as Model, o as ZRText, q as createTextStyle, s as ComponentView, t as getPrecisionSafe, v as Cartesian, w as inherits, A as Axis, x as getLayoutRect, y as createScale, z as mixinAxisModelCommonMethods, B as clone, O as OrdinalMeta, D as curry, E as getMap, F as createDimensions, S as SeriesData, G as lift, H as BoundingRect, I as parseGeoJSON, J as fixTextCoords, K as reduce$1, L as parseDate, N as dataStack, P as formatTpl, Q as encodeHTML, T as addCommas, U as isObject, V as getTooltipMarker, W as formatTime, X as getCoordinateSystemDimensions, Y as SeriesModel, _ as ChartView, $ as createSymbol, a0 as round, a1 as createList$1, a2 as Graph$1, a3 as linkSeriesData, a4 as linearMap, a5 as extend$2 } from "./index-CIyxDY2d.js";
use([install$g, install$h]);
use(installLabelLayout);
function derive(makeDefaultOpt, initialize, proto) {
  if (typeof initialize == "object") {
    proto = initialize;
    initialize = null;
  }
  var _super = this;
  var propList;
  if (!(makeDefaultOpt instanceof Function)) {
    propList = [];
    for (var propName in makeDefaultOpt) {
      if (makeDefaultOpt.hasOwnProperty(propName)) {
        propList.push(propName);
      }
    }
  }
  var sub2 = function(options) {
    _super.apply(this, arguments);
    if (makeDefaultOpt instanceof Function) {
      extend$1(this, makeDefaultOpt.call(this, options));
    } else {
      extendWithPropList(this, makeDefaultOpt, propList);
    }
    if (this.constructor === sub2) {
      var initializers = sub2.__initializers__;
      for (var i = 0; i < initializers.length; i++) {
        initializers[i].apply(this, arguments);
      }
    }
  };
  sub2.__super__ = _super;
  if (!_super.__initializers__) {
    sub2.__initializers__ = [];
  } else {
    sub2.__initializers__ = _super.__initializers__.slice();
  }
  if (initialize) {
    sub2.__initializers__.push(initialize);
  }
  var Ctor = function() {
  };
  Ctor.prototype = _super.prototype;
  sub2.prototype = new Ctor();
  sub2.prototype.constructor = sub2;
  extend$1(sub2.prototype, proto);
  sub2.extend = _super.extend;
  sub2.derive = _super.extend;
  return sub2;
}
function extend$1(target, source) {
  if (!source) {
    return;
  }
  for (var name in source) {
    if (source.hasOwnProperty(name)) {
      target[name] = source[name];
    }
  }
}
function extendWithPropList(target, source, propList) {
  for (var i = 0; i < propList.length; i++) {
    var propName = propList[i];
    target[propName] = source[propName];
  }
}
const extendMixin = {
  extend: derive,
  // DEPCRATED
  derive
};
function Handler(action, context) {
  this.action = action;
  this.context = context;
}
var notifier = {
  /**
   * Trigger event
   * @param  {string} name
   */
  trigger: function(name) {
    if (!this.hasOwnProperty("__handlers__")) {
      return;
    }
    if (!this.__handlers__.hasOwnProperty(name)) {
      return;
    }
    var hdls = this.__handlers__[name];
    var l = hdls.length, i = -1, args = arguments;
    switch (args.length) {
      case 1:
        while (++i < l) {
          hdls[i].action.call(hdls[i].context);
        }
        return;
      case 2:
        while (++i < l) {
          hdls[i].action.call(hdls[i].context, args[1]);
        }
        return;
      case 3:
        while (++i < l) {
          hdls[i].action.call(hdls[i].context, args[1], args[2]);
        }
        return;
      case 4:
        while (++i < l) {
          hdls[i].action.call(hdls[i].context, args[1], args[2], args[3]);
        }
        return;
      case 5:
        while (++i < l) {
          hdls[i].action.call(hdls[i].context, args[1], args[2], args[3], args[4]);
        }
        return;
      default:
        while (++i < l) {
          hdls[i].action.apply(hdls[i].context, Array.prototype.slice.call(args, 1));
        }
        return;
    }
  },
  /**
   * Register event handler
   * @param  {string} name
   * @param  {Function} action
   * @param  {Object} [context]
   * @chainable
   */
  on: function(name, action, context) {
    if (!name || !action) {
      return;
    }
    var handlers = this.__handlers__ || (this.__handlers__ = {});
    if (!handlers[name]) {
      handlers[name] = [];
    } else {
      if (this.has(name, action)) {
        return;
      }
    }
    var handler = new Handler(action, context || this);
    handlers[name].push(handler);
    return this;
  },
  /**
   * Register event, event will only be triggered once and then removed
   * @param  {string} name
   * @param  {Function} action
   * @param  {Object} [context]
   * @chainable
   */
  once: function(name, action, context) {
    if (!name || !action) {
      return;
    }
    var self2 = this;
    function wrapper() {
      self2.off(name, wrapper);
      action.apply(this, arguments);
    }
    return this.on(name, wrapper, context);
  },
  /**
   * Alias of once('before' + name)
   * @param  {string} name
   * @param  {Function} action
   * @param  {Object} [context]
   * @chainable
   */
  before: function(name, action, context) {
    if (!name || !action) {
      return;
    }
    name = "before" + name;
    return this.on(name, action, context);
  },
  /**
   * Alias of once('after' + name)
   * @param  {string} name
   * @param  {Function} action
   * @param  {Object} [context]
   * @chainable
   */
  after: function(name, action, context) {
    if (!name || !action) {
      return;
    }
    name = "after" + name;
    return this.on(name, action, context);
  },
  /**
   * Alias of on('success')
   * @param  {Function} action
   * @param  {Object} [context]
   * @chainable
   */
  success: function(action, context) {
    return this.once("success", action, context);
  },
  /**
   * Alias of on('error')
   * @param  {Function} action
   * @param  {Object} [context]
   * @chainable
   */
  error: function(action, context) {
    return this.once("error", action, context);
  },
  /**
   * Remove event listener
   * @param  {Function} action
   * @param  {Object} [context]
   * @chainable
   */
  off: function(name, action) {
    var handlers = this.__handlers__ || (this.__handlers__ = {});
    if (!action) {
      handlers[name] = [];
      return;
    }
    if (handlers[name]) {
      var hdls = handlers[name];
      var retains = [];
      for (var i = 0; i < hdls.length; i++) {
        if (action && hdls[i].action !== action) {
          retains.push(hdls[i]);
        }
      }
      handlers[name] = retains;
    }
    return this;
  },
  /**
   * If registered the event handler
   * @param  {string}  name
   * @param  {Function}  action
   * @return {boolean}
   */
  has: function(name, action) {
    var handlers = this.__handlers__;
    if (!handlers || !handlers[name]) {
      return false;
    }
    var hdls = handlers[name];
    for (var i = 0; i < hdls.length; i++) {
      if (hdls[i].action === action) {
        return true;
      }
    }
  }
};
var guid = 0;
var ArrayProto = Array.prototype;
var nativeForEach = ArrayProto.forEach;
var util = {
  /**
   * Generate GUID
   * @return {number}
   * @memberOf clay.core.util
   */
  genGUID: function() {
    return ++guid;
  },
  /**
   * Relative path to absolute path
   * @param  {string} path
   * @param  {string} basePath
   * @return {string}
   * @memberOf clay.core.util
   */
  relative2absolute: function(path, basePath) {
    if (!basePath || path.match(/^\//)) {
      return path;
    }
    var pathParts = path.split("/");
    var basePathParts = basePath.split("/");
    var item = pathParts[0];
    while (item === "." || item === "..") {
      if (item === "..") {
        basePathParts.pop();
      }
      pathParts.shift();
      item = pathParts[0];
    }
    return basePathParts.join("/") + "/" + pathParts.join("/");
  },
  /**
   * Extend target with source
   * @param  {Object} target
   * @param  {Object} source
   * @return {Object}
   * @memberOf clay.core.util
   */
  extend: function(target, source) {
    if (source) {
      for (var name in source) {
        if (source.hasOwnProperty(name)) {
          target[name] = source[name];
        }
      }
    }
    return target;
  },
  /**
   * Extend properties to target if not exist.
   * @param  {Object} target
   * @param  {Object} source
   * @return {Object}
   * @memberOf clay.core.util
   */
  defaults: function(target, source) {
    if (source) {
      for (var propName in source) {
        if (target[propName] === void 0) {
          target[propName] = source[propName];
        }
      }
    }
    return target;
  },
  /**
   * Extend properties with a given property list to avoid for..in.. iteration.
   * @param  {Object} target
   * @param  {Object} source
   * @param  {Array.<string>} propList
   * @return {Object}
   * @memberOf clay.core.util
   */
  extendWithPropList: function(target, source, propList) {
    if (source) {
      for (var i = 0; i < propList.length; i++) {
        var propName = propList[i];
        target[propName] = source[propName];
      }
    }
    return target;
  },
  /**
   * Extend properties to target if not exist. With a given property list avoid for..in.. iteration.
   * @param  {Object} target
   * @param  {Object} source
   * @param  {Array.<string>} propList
   * @return {Object}
   * @memberOf clay.core.util
   */
  defaultsWithPropList: function(target, source, propList) {
    if (source) {
      for (var i = 0; i < propList.length; i++) {
        var propName = propList[i];
        if (target[propName] == null) {
          target[propName] = source[propName];
        }
      }
    }
    return target;
  },
  /**
   * @param  {Object|Array} obj
   * @param  {Function} iterator
   * @param  {Object} [context]
   * @memberOf clay.core.util
   */
  each: function(obj, iterator, context) {
    if (!(obj && iterator)) {
      return;
    }
    if (obj.forEach && obj.forEach === nativeForEach) {
      obj.forEach(iterator, context);
    } else if (obj.length === +obj.length) {
      for (var i = 0, len = obj.length; i < len; i++) {
        iterator.call(context, obj[i], i, obj);
      }
    } else {
      for (var key in obj) {
        if (obj.hasOwnProperty(key)) {
          iterator.call(context, obj[key], key, obj);
        }
      }
    }
  },
  /**
   * Is object
   * @param  {}  obj
   * @return {boolean}
   * @memberOf clay.core.util
   */
  isObject: function(obj) {
    return obj === Object(obj);
  },
  /**
   * Is array ?
   * @param  {}  obj
   * @return {boolean}
   * @memberOf clay.core.util
   */
  isArray: function(obj) {
    return Array.isArray(obj);
  },
  /**
   * Is array like, which have a length property
   * @param  {}  obj
   * @return {boolean}
   * @memberOf clay.core.util
   */
  isArrayLike: function(obj) {
    if (!obj) {
      return false;
    } else {
      return obj.length === +obj.length;
    }
  },
  /**
   * @param  {} obj
   * @return {}
   * @memberOf clay.core.util
   */
  clone: function(obj) {
    if (!util.isObject(obj)) {
      return obj;
    } else if (util.isArray(obj)) {
      return obj.slice();
    } else if (util.isArrayLike(obj)) {
      var ret2 = new obj.constructor(obj.length);
      for (var i = 0; i < obj.length; i++) {
        ret2[i] = obj[i];
      }
      return ret2;
    } else {
      return util.extend({}, obj);
    }
  }
};
var Base = function() {
  this.__uid__ = util.genGUID();
};
Base.__initializers__ = [
  function(opts) {
    util.extend(this, opts);
  }
];
util.extend(Base, extendMixin);
util.extend(Base.prototype, notifier);
var EXTENSION_LIST = [
  "OES_texture_float",
  "OES_texture_half_float",
  "OES_texture_float_linear",
  "OES_texture_half_float_linear",
  "OES_standard_derivatives",
  "OES_vertex_array_object",
  "OES_element_index_uint",
  "WEBGL_compressed_texture_s3tc",
  "WEBGL_depth_texture",
  "EXT_texture_filter_anisotropic",
  "EXT_shader_texture_lod",
  "WEBGL_draw_buffers",
  "EXT_frag_depth",
  "EXT_sRGB",
  "ANGLE_instanced_arrays"
];
var PARAMETER_NAMES = [
  "MAX_TEXTURE_SIZE",
  "MAX_CUBE_MAP_TEXTURE_SIZE"
];
function GLInfo(_gl) {
  var extensions = {};
  var parameters = {};
  for (var i = 0; i < EXTENSION_LIST.length; i++) {
    var extName = EXTENSION_LIST[i];
    createExtension(extName);
  }
  for (var i = 0; i < PARAMETER_NAMES.length; i++) {
    var name = PARAMETER_NAMES[i];
    parameters[name] = _gl.getParameter(_gl[name]);
  }
  this.getExtension = function(name2) {
    if (!(name2 in extensions)) {
      createExtension(name2);
    }
    return extensions[name2];
  };
  this.getParameter = function(name2) {
    return parameters[name2];
  };
  function createExtension(name2) {
    if (_gl.getExtension) {
      var ext = _gl.getExtension(name2);
      if (!ext) {
        ext = _gl.getExtension("MOZ_" + name2);
      }
      if (!ext) {
        ext = _gl.getExtension("WEBKIT_" + name2);
      }
      extensions[name2] = ext;
    }
  }
}
const glenum = {
  /* ClearBufferMask */
  DEPTH_BUFFER_BIT: 256,
  STENCIL_BUFFER_BIT: 1024,
  COLOR_BUFFER_BIT: 16384,
  /* BeginMode */
  POINTS: 0,
  LINES: 1,
  LINE_LOOP: 2,
  LINE_STRIP: 3,
  TRIANGLES: 4,
  TRIANGLE_STRIP: 5,
  TRIANGLE_FAN: 6,
  STREAM_DRAW: 35040,
  STATIC_DRAW: 35044,
  DYNAMIC_DRAW: 35048,
  /* CullFaceMode */
  FRONT: 1028,
  BACK: 1029,
  FRONT_AND_BACK: 1032,
  /* FrontFaceDirection */
  CW: 2304,
  CCW: 2305,
  /* DataType */
  BYTE: 5120,
  UNSIGNED_BYTE: 5121,
  SHORT: 5122,
  UNSIGNED_SHORT: 5123,
  INT: 5124,
  UNSIGNED_INT: 5125,
  FLOAT: 5126,
  /* PixelFormat */
  DEPTH_COMPONENT: 6402,
  ALPHA: 6406,
  RGB: 6407,
  RGBA: 6408,
  LUMINANCE: 6409,
  LUMINANCE_ALPHA: 6410,
  /* TextureMagFilter */
  NEAREST: 9728,
  LINEAR: 9729,
  /* TextureMinFilter */
  /*      NEAREST */
  /*      LINEAR */
  NEAREST_MIPMAP_NEAREST: 9984,
  LINEAR_MIPMAP_NEAREST: 9985,
  NEAREST_MIPMAP_LINEAR: 9986,
  LINEAR_MIPMAP_LINEAR: 9987,
  /* TextureTarget */
  TEXTURE_2D: 3553,
  TEXTURE_CUBE_MAP: 34067,
  /* TextureWrapMode */
  REPEAT: 10497,
  CLAMP_TO_EDGE: 33071,
  MIRRORED_REPEAT: 33648,
  /* Framebuffer Object. */
  FRAMEBUFFER: 36160,
  RENDERBUFFER: 36161,
  DEPTH_STENCIL: 34041,
  COLOR_ATTACHMENT0: 36064,
  DEPTH_ATTACHMENT: 36096,
  STENCIL_ATTACHMENT: 36128,
  DEPTH_STENCIL_ATTACHMENT: 33306
};
function get(options) {
  var xhr = new XMLHttpRequest();
  xhr.open("get", options.url);
  xhr.responseType = options.responseType || "text";
  if (options.onprogress) {
    xhr.onprogress = function(e2) {
      if (e2.lengthComputable) {
        var percent = e2.loaded / e2.total;
        options.onprogress(percent, e2.loaded, e2.total);
      } else {
        options.onprogress(null);
      }
    };
  }
  xhr.onload = function(e2) {
    if (xhr.status >= 400) {
      options.onerror && options.onerror();
    } else {
      options.onload && options.onload(xhr.response);
    }
  };
  if (options.onerror) {
    xhr.onerror = options.onerror;
  }
  xhr.send(null);
}
const request = {
  get
};
var supportWebGL;
var vendor = {};
vendor.supportWebGL = function() {
  if (supportWebGL == null) {
    try {
      var canvas = document.createElement("canvas");
      var gl = canvas.getContext("webgl") || canvas.getContext("experimental-webgl");
      if (!gl) {
        throw new Error();
      }
    } catch (e2) {
      supportWebGL = false;
    }
  }
  return supportWebGL;
};
vendor.Int8Array = typeof Int8Array === "undefined" ? Array : Int8Array;
vendor.Uint8Array = typeof Uint8Array === "undefined" ? Array : Uint8Array;
vendor.Uint16Array = typeof Uint16Array === "undefined" ? Array : Uint16Array;
vendor.Uint32Array = typeof Uint32Array === "undefined" ? Array : Uint32Array;
vendor.Int16Array = typeof Int16Array === "undefined" ? Array : Int16Array;
vendor.Float32Array = typeof Float32Array === "undefined" ? Array : Float32Array;
vendor.Float64Array = typeof Float64Array === "undefined" ? Array : Float64Array;
var g = {};
if (typeof window !== "undefined") {
  g = window;
} else if (typeof global !== "undefined") {
  g = global;
}
vendor.requestAnimationFrame = g.requestAnimationFrame || g.msRequestAnimationFrame || g.mozRequestAnimationFrame || g.webkitRequestAnimationFrame || function(func) {
  setTimeout(func, 16);
};
vendor.createCanvas = function() {
  return document.createElement("canvas");
};
vendor.createImage = function() {
  return new g.Image();
};
vendor.request = {
  get: request.get
};
vendor.addEventListener = function(dom, type, func, useCapture) {
  dom.addEventListener(type, func, useCapture);
};
vendor.removeEventListener = function(dom, type, func) {
  dom.removeEventListener(type, func);
};
var LinkedList$1 = function() {
  this.head = null;
  this.tail = null;
  this._length = 0;
};
LinkedList$1.prototype.insert = function(val) {
  var entry = new LinkedList$1.Entry(val);
  this.insertEntry(entry);
  return entry;
};
LinkedList$1.prototype.insertAt = function(idx, val) {
  if (idx < 0) {
    return;
  }
  var next = this.head;
  var cursor = 0;
  while (next && cursor != idx) {
    next = next.next;
    cursor++;
  }
  if (next) {
    var entry = new LinkedList$1.Entry(val);
    var prev = next.prev;
    if (!prev) {
      this.head = entry;
    } else {
      prev.next = entry;
      entry.prev = prev;
    }
    entry.next = next;
    next.prev = entry;
  } else {
    this.insert(val);
  }
};
LinkedList$1.prototype.insertBeforeEntry = function(val, next) {
  var entry = new LinkedList$1.Entry(val);
  var prev = next.prev;
  if (!prev) {
    this.head = entry;
  } else {
    prev.next = entry;
    entry.prev = prev;
  }
  entry.next = next;
  next.prev = entry;
  this._length++;
};
LinkedList$1.prototype.insertEntry = function(entry) {
  if (!this.head) {
    this.head = this.tail = entry;
  } else {
    this.tail.next = entry;
    entry.prev = this.tail;
    this.tail = entry;
  }
  this._length++;
};
LinkedList$1.prototype.remove = function(entry) {
  var prev = entry.prev;
  var next = entry.next;
  if (prev) {
    prev.next = next;
  } else {
    this.head = next;
  }
  if (next) {
    next.prev = prev;
  } else {
    this.tail = prev;
  }
  entry.next = entry.prev = null;
  this._length--;
};
LinkedList$1.prototype.removeAt = function(idx) {
  if (idx < 0) {
    return;
  }
  var curr = this.head;
  var cursor = 0;
  while (curr && cursor != idx) {
    curr = curr.next;
    cursor++;
  }
  if (curr) {
    this.remove(curr);
    return curr.value;
  }
};
LinkedList$1.prototype.getHead = function() {
  if (this.head) {
    return this.head.value;
  }
};
LinkedList$1.prototype.getTail = function() {
  if (this.tail) {
    return this.tail.value;
  }
};
LinkedList$1.prototype.getAt = function(idx) {
  if (idx < 0) {
    return;
  }
  var curr = this.head;
  var cursor = 0;
  while (curr && cursor != idx) {
    curr = curr.next;
    cursor++;
  }
  return curr.value;
};
LinkedList$1.prototype.indexOf = function(value) {
  var curr = this.head;
  var cursor = 0;
  while (curr) {
    if (curr.value === value) {
      return cursor;
    }
    curr = curr.next;
    cursor++;
  }
};
LinkedList$1.prototype.length = function() {
  return this._length;
};
LinkedList$1.prototype.isEmpty = function() {
  return this._length === 0;
};
LinkedList$1.prototype.forEach = function(cb, context) {
  var curr = this.head;
  var idx = 0;
  var haveContext = typeof context != "undefined";
  while (curr) {
    if (haveContext) {
      cb.call(context, curr.value, idx);
    } else {
      cb(curr.value, idx);
    }
    curr = curr.next;
    idx++;
  }
};
LinkedList$1.prototype.clear = function() {
  this.tail = this.head = null;
  this._length = 0;
};
LinkedList$1.Entry = function(val) {
  this.value = val;
  this.next = null;
  this.prev = null;
};
var LRU$1 = function(maxSize) {
  this._list = new LinkedList$1();
  this._map = {};
  this._maxSize = maxSize || 10;
};
LRU$1.prototype.setMaxSize = function(size) {
  this._maxSize = size;
};
LRU$1.prototype.put = function(key, value) {
  if (!this._map.hasOwnProperty(key)) {
    var len = this._list.length();
    if (len >= this._maxSize && len > 0) {
      var leastUsedEntry = this._list.head;
      this._list.remove(leastUsedEntry);
      delete this._map[leastUsedEntry.key];
    }
    var entry = this._list.insert(value);
    entry.key = key;
    this._map[key] = entry;
  }
};
LRU$1.prototype.get = function(key) {
  var entry = this._map[key];
  if (this._map.hasOwnProperty(key)) {
    if (entry !== this._list.tail) {
      this._list.remove(entry);
      this._list.insertEntry(entry);
    }
    return entry.value;
  }
};
LRU$1.prototype.remove = function(key) {
  var entry = this._map[key];
  if (typeof entry !== "undefined") {
    delete this._map[key];
    this._list.remove(entry);
  }
};
LRU$1.prototype.clear = function() {
  this._list.clear();
  this._map = {};
};
var colorUtil = {};
var kCSSColorTable$1 = {
  "transparent": [0, 0, 0, 0],
  "aliceblue": [240, 248, 255, 1],
  "antiquewhite": [250, 235, 215, 1],
  "aqua": [0, 255, 255, 1],
  "aquamarine": [127, 255, 212, 1],
  "azure": [240, 255, 255, 1],
  "beige": [245, 245, 220, 1],
  "bisque": [255, 228, 196, 1],
  "black": [0, 0, 0, 1],
  "blanchedalmond": [255, 235, 205, 1],
  "blue": [0, 0, 255, 1],
  "blueviolet": [138, 43, 226, 1],
  "brown": [165, 42, 42, 1],
  "burlywood": [222, 184, 135, 1],
  "cadetblue": [95, 158, 160, 1],
  "chartreuse": [127, 255, 0, 1],
  "chocolate": [210, 105, 30, 1],
  "coral": [255, 127, 80, 1],
  "cornflowerblue": [100, 149, 237, 1],
  "cornsilk": [255, 248, 220, 1],
  "crimson": [220, 20, 60, 1],
  "cyan": [0, 255, 255, 1],
  "darkblue": [0, 0, 139, 1],
  "darkcyan": [0, 139, 139, 1],
  "darkgoldenrod": [184, 134, 11, 1],
  "darkgray": [169, 169, 169, 1],
  "darkgreen": [0, 100, 0, 1],
  "darkgrey": [169, 169, 169, 1],
  "darkkhaki": [189, 183, 107, 1],
  "darkmagenta": [139, 0, 139, 1],
  "darkolivegreen": [85, 107, 47, 1],
  "darkorange": [255, 140, 0, 1],
  "darkorchid": [153, 50, 204, 1],
  "darkred": [139, 0, 0, 1],
  "darksalmon": [233, 150, 122, 1],
  "darkseagreen": [143, 188, 143, 1],
  "darkslateblue": [72, 61, 139, 1],
  "darkslategray": [47, 79, 79, 1],
  "darkslategrey": [47, 79, 79, 1],
  "darkturquoise": [0, 206, 209, 1],
  "darkviolet": [148, 0, 211, 1],
  "deeppink": [255, 20, 147, 1],
  "deepskyblue": [0, 191, 255, 1],
  "dimgray": [105, 105, 105, 1],
  "dimgrey": [105, 105, 105, 1],
  "dodgerblue": [30, 144, 255, 1],
  "firebrick": [178, 34, 34, 1],
  "floralwhite": [255, 250, 240, 1],
  "forestgreen": [34, 139, 34, 1],
  "fuchsia": [255, 0, 255, 1],
  "gainsboro": [220, 220, 220, 1],
  "ghostwhite": [248, 248, 255, 1],
  "gold": [255, 215, 0, 1],
  "goldenrod": [218, 165, 32, 1],
  "gray": [128, 128, 128, 1],
  "green": [0, 128, 0, 1],
  "greenyellow": [173, 255, 47, 1],
  "grey": [128, 128, 128, 1],
  "honeydew": [240, 255, 240, 1],
  "hotpink": [255, 105, 180, 1],
  "indianred": [205, 92, 92, 1],
  "indigo": [75, 0, 130, 1],
  "ivory": [255, 255, 240, 1],
  "khaki": [240, 230, 140, 1],
  "lavender": [230, 230, 250, 1],
  "lavenderblush": [255, 240, 245, 1],
  "lawngreen": [124, 252, 0, 1],
  "lemonchiffon": [255, 250, 205, 1],
  "lightblue": [173, 216, 230, 1],
  "lightcoral": [240, 128, 128, 1],
  "lightcyan": [224, 255, 255, 1],
  "lightgoldenrodyellow": [250, 250, 210, 1],
  "lightgray": [211, 211, 211, 1],
  "lightgreen": [144, 238, 144, 1],
  "lightgrey": [211, 211, 211, 1],
  "lightpink": [255, 182, 193, 1],
  "lightsalmon": [255, 160, 122, 1],
  "lightseagreen": [32, 178, 170, 1],
  "lightskyblue": [135, 206, 250, 1],
  "lightslategray": [119, 136, 153, 1],
  "lightslategrey": [119, 136, 153, 1],
  "lightsteelblue": [176, 196, 222, 1],
  "lightyellow": [255, 255, 224, 1],
  "lime": [0, 255, 0, 1],
  "limegreen": [50, 205, 50, 1],
  "linen": [250, 240, 230, 1],
  "magenta": [255, 0, 255, 1],
  "maroon": [128, 0, 0, 1],
  "mediumaquamarine": [102, 205, 170, 1],
  "mediumblue": [0, 0, 205, 1],
  "mediumorchid": [186, 85, 211, 1],
  "mediumpurple": [147, 112, 219, 1],
  "mediumseagreen": [60, 179, 113, 1],
  "mediumslateblue": [123, 104, 238, 1],
  "mediumspringgreen": [0, 250, 154, 1],
  "mediumturquoise": [72, 209, 204, 1],
  "mediumvioletred": [199, 21, 133, 1],
  "midnightblue": [25, 25, 112, 1],
  "mintcream": [245, 255, 250, 1],
  "mistyrose": [255, 228, 225, 1],
  "moccasin": [255, 228, 181, 1],
  "navajowhite": [255, 222, 173, 1],
  "navy": [0, 0, 128, 1],
  "oldlace": [253, 245, 230, 1],
  "olive": [128, 128, 0, 1],
  "olivedrab": [107, 142, 35, 1],
  "orange": [255, 165, 0, 1],
  "orangered": [255, 69, 0, 1],
  "orchid": [218, 112, 214, 1],
  "palegoldenrod": [238, 232, 170, 1],
  "palegreen": [152, 251, 152, 1],
  "paleturquoise": [175, 238, 238, 1],
  "palevioletred": [219, 112, 147, 1],
  "papayawhip": [255, 239, 213, 1],
  "peachpuff": [255, 218, 185, 1],
  "peru": [205, 133, 63, 1],
  "pink": [255, 192, 203, 1],
  "plum": [221, 160, 221, 1],
  "powderblue": [176, 224, 230, 1],
  "purple": [128, 0, 128, 1],
  "red": [255, 0, 0, 1],
  "rosybrown": [188, 143, 143, 1],
  "royalblue": [65, 105, 225, 1],
  "saddlebrown": [139, 69, 19, 1],
  "salmon": [250, 128, 114, 1],
  "sandybrown": [244, 164, 96, 1],
  "seagreen": [46, 139, 87, 1],
  "seashell": [255, 245, 238, 1],
  "sienna": [160, 82, 45, 1],
  "silver": [192, 192, 192, 1],
  "skyblue": [135, 206, 235, 1],
  "slateblue": [106, 90, 205, 1],
  "slategray": [112, 128, 144, 1],
  "slategrey": [112, 128, 144, 1],
  "snow": [255, 250, 250, 1],
  "springgreen": [0, 255, 127, 1],
  "steelblue": [70, 130, 180, 1],
  "tan": [210, 180, 140, 1],
  "teal": [0, 128, 128, 1],
  "thistle": [216, 191, 216, 1],
  "tomato": [255, 99, 71, 1],
  "turquoise": [64, 224, 208, 1],
  "violet": [238, 130, 238, 1],
  "wheat": [245, 222, 179, 1],
  "white": [255, 255, 255, 1],
  "whitesmoke": [245, 245, 245, 1],
  "yellow": [255, 255, 0, 1],
  "yellowgreen": [154, 205, 50, 1]
};
function clampCssByte$1(i) {
  i = Math.round(i);
  return i < 0 ? 0 : i > 255 ? 255 : i;
}
function clampCssAngle(i) {
  i = Math.round(i);
  return i < 0 ? 0 : i > 360 ? 360 : i;
}
function clampCssFloat$1(f) {
  return f < 0 ? 0 : f > 1 ? 1 : f;
}
function parseCssInt$1(str) {
  if (str.length && str.charAt(str.length - 1) === "%") {
    return clampCssByte$1(parseFloat(str) / 100 * 255);
  }
  return clampCssByte$1(parseInt(str, 10));
}
function parseCssFloat$1(str) {
  if (str.length && str.charAt(str.length - 1) === "%") {
    return clampCssFloat$1(parseFloat(str) / 100);
  }
  return clampCssFloat$1(parseFloat(str));
}
function cssHueToRgb$1(m1, m2, h) {
  if (h < 0) {
    h += 1;
  } else if (h > 1) {
    h -= 1;
  }
  if (h * 6 < 1) {
    return m1 + (m2 - m1) * h * 6;
  }
  if (h * 2 < 1) {
    return m2;
  }
  if (h * 3 < 2) {
    return m1 + (m2 - m1) * (2 / 3 - h) * 6;
  }
  return m1;
}
function lerpNumber(a, b, p) {
  return a + (b - a) * p;
}
function setRgba$1(out, r, g2, b, a) {
  out[0] = r;
  out[1] = g2;
  out[2] = b;
  out[3] = a;
  return out;
}
function copyRgba$1(out, a) {
  out[0] = a[0];
  out[1] = a[1];
  out[2] = a[2];
  out[3] = a[3];
  return out;
}
var colorCache$1 = new LRU$1(20);
var lastRemovedArr$1 = null;
function putToCache$1(colorStr, rgbaArr) {
  if (lastRemovedArr$1) {
    copyRgba$1(lastRemovedArr$1, rgbaArr);
  }
  lastRemovedArr$1 = colorCache$1.put(colorStr, lastRemovedArr$1 || rgbaArr.slice());
}
colorUtil.parse = function(colorStr, rgbaArr) {
  if (!colorStr) {
    return;
  }
  rgbaArr = rgbaArr || [];
  var cached = colorCache$1.get(colorStr);
  if (cached) {
    return copyRgba$1(rgbaArr, cached);
  }
  colorStr = colorStr + "";
  var str = colorStr.replace(/ /g, "").toLowerCase();
  if (str in kCSSColorTable$1) {
    copyRgba$1(rgbaArr, kCSSColorTable$1[str]);
    putToCache$1(colorStr, rgbaArr);
    return rgbaArr;
  }
  if (str.charAt(0) === "#") {
    if (str.length === 4) {
      var iv = parseInt(str.substr(1), 16);
      if (!(iv >= 0 && iv <= 4095)) {
        setRgba$1(rgbaArr, 0, 0, 0, 1);
        return;
      }
      setRgba$1(
        rgbaArr,
        (iv & 3840) >> 4 | (iv & 3840) >> 8,
        iv & 240 | (iv & 240) >> 4,
        iv & 15 | (iv & 15) << 4,
        1
      );
      putToCache$1(colorStr, rgbaArr);
      return rgbaArr;
    } else if (str.length === 7) {
      var iv = parseInt(str.substr(1), 16);
      if (!(iv >= 0 && iv <= 16777215)) {
        setRgba$1(rgbaArr, 0, 0, 0, 1);
        return;
      }
      setRgba$1(
        rgbaArr,
        (iv & 16711680) >> 16,
        (iv & 65280) >> 8,
        iv & 255,
        1
      );
      putToCache$1(colorStr, rgbaArr);
      return rgbaArr;
    }
    return;
  }
  var op = str.indexOf("("), ep = str.indexOf(")");
  if (op !== -1 && ep + 1 === str.length) {
    var fname = str.substr(0, op);
    var params = str.substr(op + 1, ep - (op + 1)).split(",");
    var alpha = 1;
    switch (fname) {
      case "rgba":
        if (params.length !== 4) {
          setRgba$1(rgbaArr, 0, 0, 0, 1);
          return;
        }
        alpha = parseCssFloat$1(params.pop());
      // jshint ignore:line
      // Fall through.
      case "rgb":
        if (params.length !== 3) {
          setRgba$1(rgbaArr, 0, 0, 0, 1);
          return;
        }
        setRgba$1(
          rgbaArr,
          parseCssInt$1(params[0]),
          parseCssInt$1(params[1]),
          parseCssInt$1(params[2]),
          alpha
        );
        putToCache$1(colorStr, rgbaArr);
        return rgbaArr;
      case "hsla":
        if (params.length !== 4) {
          setRgba$1(rgbaArr, 0, 0, 0, 1);
          return;
        }
        params[3] = parseCssFloat$1(params[3]);
        hsla2rgba$1(params, rgbaArr);
        putToCache$1(colorStr, rgbaArr);
        return rgbaArr;
      case "hsl":
        if (params.length !== 3) {
          setRgba$1(rgbaArr, 0, 0, 0, 1);
          return;
        }
        hsla2rgba$1(params, rgbaArr);
        putToCache$1(colorStr, rgbaArr);
        return rgbaArr;
      default:
        return;
    }
  }
  setRgba$1(rgbaArr, 0, 0, 0, 1);
  return;
};
colorUtil.parseToFloat = function(colorStr, rgbaArr) {
  rgbaArr = colorUtil.parse(colorStr, rgbaArr);
  if (!rgbaArr) {
    return;
  }
  rgbaArr[0] /= 255;
  rgbaArr[1] /= 255;
  rgbaArr[2] /= 255;
  return rgbaArr;
};
function hsla2rgba$1(hsla, rgba) {
  var h = (parseFloat(hsla[0]) % 360 + 360) % 360 / 360;
  var s = parseCssFloat$1(hsla[1]);
  var l = parseCssFloat$1(hsla[2]);
  var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
  var m1 = l * 2 - m2;
  rgba = rgba || [];
  setRgba$1(
    rgba,
    clampCssByte$1(cssHueToRgb$1(m1, m2, h + 1 / 3) * 255),
    clampCssByte$1(cssHueToRgb$1(m1, m2, h) * 255),
    clampCssByte$1(cssHueToRgb$1(m1, m2, h - 1 / 3) * 255),
    1
  );
  if (hsla.length === 4) {
    rgba[3] = hsla[3];
  }
  return rgba;
}
function rgba2hsla(rgba) {
  if (!rgba) {
    return;
  }
  var R = rgba[0] / 255;
  var G = rgba[1] / 255;
  var B = rgba[2] / 255;
  var vMin = Math.min(R, G, B);
  var vMax = Math.max(R, G, B);
  var delta = vMax - vMin;
  var L = (vMax + vMin) / 2;
  var H;
  var S;
  if (delta === 0) {
    H = 0;
    S = 0;
  } else {
    if (L < 0.5) {
      S = delta / (vMax + vMin);
    } else {
      S = delta / (2 - vMax - vMin);
    }
    var deltaR = ((vMax - R) / 6 + delta / 2) / delta;
    var deltaG = ((vMax - G) / 6 + delta / 2) / delta;
    var deltaB = ((vMax - B) / 6 + delta / 2) / delta;
    if (R === vMax) {
      H = deltaB - deltaG;
    } else if (G === vMax) {
      H = 1 / 3 + deltaR - deltaB;
    } else if (B === vMax) {
      H = 2 / 3 + deltaG - deltaR;
    }
    if (H < 0) {
      H += 1;
    }
    if (H > 1) {
      H -= 1;
    }
  }
  var hsla = [H * 360, S, L];
  if (rgba[3] != null) {
    hsla.push(rgba[3]);
  }
  return hsla;
}
colorUtil.lift = function(color, level) {
  var colorArr = colorUtil.parse(color);
  if (colorArr) {
    for (var i = 0; i < 3; i++) {
      if (level < 0) {
        colorArr[i] = colorArr[i] * (1 - level) | 0;
      } else {
        colorArr[i] = (255 - colorArr[i]) * level + colorArr[i] | 0;
      }
    }
    return colorUtil.stringify(colorArr, colorArr.length === 4 ? "rgba" : "rgb");
  }
};
colorUtil.toHex = function(color) {
  var colorArr = colorUtil.parse(color);
  if (colorArr) {
    return ((1 << 24) + (colorArr[0] << 16) + (colorArr[1] << 8) + +colorArr[2]).toString(16).slice(1);
  }
};
colorUtil.fastLerp = function(normalizedValue, colors, out) {
  if (!(colors && colors.length) || !(normalizedValue >= 0 && normalizedValue <= 1)) {
    return;
  }
  out = out || [];
  var value = normalizedValue * (colors.length - 1);
  var leftIndex = Math.floor(value);
  var rightIndex = Math.ceil(value);
  var leftColor = colors[leftIndex];
  var rightColor = colors[rightIndex];
  var dv = value - leftIndex;
  out[0] = clampCssByte$1(lerpNumber(leftColor[0], rightColor[0], dv));
  out[1] = clampCssByte$1(lerpNumber(leftColor[1], rightColor[1], dv));
  out[2] = clampCssByte$1(lerpNumber(leftColor[2], rightColor[2], dv));
  out[3] = clampCssFloat$1(lerpNumber(leftColor[3], rightColor[3], dv));
  return out;
};
colorUtil.fastMapToColor = colorUtil.fastLerp;
colorUtil.lerp = function(normalizedValue, colors, fullOutput) {
  if (!(colors && colors.length) || !(normalizedValue >= 0 && normalizedValue <= 1)) {
    return;
  }
  var value = normalizedValue * (colors.length - 1);
  var leftIndex = Math.floor(value);
  var rightIndex = Math.ceil(value);
  var leftColor = colorUtil.parse(colors[leftIndex]);
  var rightColor = colorUtil.parse(colors[rightIndex]);
  var dv = value - leftIndex;
  var color = colorUtil.stringify(
    [
      clampCssByte$1(lerpNumber(leftColor[0], rightColor[0], dv)),
      clampCssByte$1(lerpNumber(leftColor[1], rightColor[1], dv)),
      clampCssByte$1(lerpNumber(leftColor[2], rightColor[2], dv)),
      clampCssFloat$1(lerpNumber(leftColor[3], rightColor[3], dv))
    ],
    "rgba"
  );
  return fullOutput ? {
    color,
    leftIndex,
    rightIndex,
    value
  } : color;
};
colorUtil.mapToColor = colorUtil.lerp;
colorUtil.modifyHSL = function(color, h, s, l) {
  color = colorUtil.parse(color);
  if (color) {
    color = rgba2hsla(color);
    h != null && (color[0] = clampCssAngle(h));
    s != null && (color[1] = parseCssFloat$1(s));
    l != null && (color[2] = parseCssFloat$1(l));
    return colorUtil.stringify(hsla2rgba$1(color), "rgba");
  }
};
colorUtil.modifyAlpha = function(color, alpha) {
  color = colorUtil.parse(color);
  if (color && alpha != null) {
    color[3] = clampCssFloat$1(alpha);
    return colorUtil.stringify(color, "rgba");
  }
};
colorUtil.stringify = function(arrColor, type) {
  if (!arrColor || !arrColor.length) {
    return;
  }
  var colorStr = arrColor[0] + "," + arrColor[1] + "," + arrColor[2];
  if (type === "rgba" || type === "hsva" || type === "hsla") {
    colorStr += "," + arrColor[3];
  }
  return type + "(" + colorStr + ")";
};
var parseColor = colorUtil.parseToFloat;
var programKeyCache$1 = {};
function getDefineCode$1(defines) {
  var defineKeys = Object.keys(defines);
  defineKeys.sort();
  var defineStr = [];
  for (var i = 0; i < defineKeys.length; i++) {
    var key = defineKeys[i];
    var value = defines[key];
    if (value === null) {
      defineStr.push(key);
    } else {
      defineStr.push(key + " " + value.toString());
    }
  }
  return defineStr.join("\n");
}
function getProgramKey$1(vertexDefines, fragmentDefines, enabledTextures) {
  enabledTextures.sort();
  var defineStr = [];
  for (var i = 0; i < enabledTextures.length; i++) {
    var symbol = enabledTextures[i];
    defineStr.push(symbol);
  }
  var key = getDefineCode$1(vertexDefines) + "\n" + getDefineCode$1(fragmentDefines) + "\n" + defineStr.join("\n");
  if (programKeyCache$1[key]) {
    return programKeyCache$1[key];
  }
  var id = util.genGUID();
  programKeyCache$1[key] = id;
  return id;
}
var Material = Base.extend(
  function() {
    return (
      /** @lends clay.Material# */
      {
        /**
         * @type {string}
         */
        name: "",
        /**
         * @type {Object}
         */
        // uniforms: null,
        /**
         * @type {clay.Shader}
         */
        // shader: null,
        /**
         * @type {boolean}
         */
        depthTest: true,
        /**
         * @type {boolean}
         */
        depthMask: true,
        /**
         * @type {boolean}
         */
        transparent: false,
        /**
         * Blend func is a callback function when the material
         * have custom blending
         * The gl context will be the only argument passed in tho the
         * blend function
         * Detail of blend function in WebGL:
         * http://www.khronos.org/registry/gles/specs/2.0/es_full_spec_2.0.25.pdf
         *
         * Example :
         * function(_gl) {
         *  _gl.blendEquation(_gl.FUNC_ADD);
         *  _gl.blendFunc(_gl.SRC_ALPHA, _gl.ONE_MINUS_SRC_ALPHA);
         * }
         */
        blend: null,
        /**
         * If update texture status automatically.
         */
        autoUpdateTextureStatus: true,
        uniforms: {},
        vertexDefines: {},
        fragmentDefines: {},
        _textureStatus: {},
        // shadowTransparentMap : null
        // PENDING enable the uniform that only used in shader.
        _enabledUniforms: null
      }
    );
  },
  function() {
    if (!this.name) {
      this.name = "MATERIAL_" + this.__uid__;
    }
    if (this.shader) {
      this.attachShader(this.shader, true);
    }
  },
  /** @lends clay.Material.prototype */
  {
    precision: "highp",
    /**
     * Set material uniform
     * @example
     *  mat.setUniform('color', [1, 1, 1, 1]);
     * @param {string} symbol
     * @param {number|array|clay.Texture|ArrayBufferView} value
     */
    setUniform: function(symbol, value) {
      if (value === void 0) {
        console.warn('Uniform value "' + symbol + '" is undefined');
      }
      var uniform = this.uniforms[symbol];
      if (uniform) {
        if (typeof value === "string") {
          value = parseColor(value) || value;
        }
        uniform.value = value;
        if (this.autoUpdateTextureStatus && uniform.type === "t") {
          if (value) {
            this.enableTexture(symbol);
          } else {
            this.disableTexture(symbol);
          }
        }
      }
    },
    /**
     * @param {Object} obj
     */
    setUniforms: function(obj) {
      for (var key in obj) {
        var val = obj[key];
        this.setUniform(key, val);
      }
    },
    /**
     * @param  {string}  symbol
     * @return {boolean}
     */
    isUniformEnabled: function(symbol) {
      return this._enabledUniforms.indexOf(symbol) >= 0;
    },
    getEnabledUniforms: function() {
      return this._enabledUniforms;
    },
    getTextureUniforms: function() {
      return this._textureUniforms;
    },
    /**
     * Alias of setUniform and setUniforms
     * @param {object|string} symbol
     * @param {number|array|clay.Texture|ArrayBufferView} [value]
     */
    set: function(symbol, value) {
      if (typeof symbol === "object") {
        for (var key in symbol) {
          var val = symbol[key];
          this.setUniform(key, val);
        }
      } else {
        this.setUniform(symbol, value);
      }
    },
    /**
     * Get uniform value
     * @param  {string} symbol
     * @return {number|array|clay.Texture|ArrayBufferView}
     */
    get: function(symbol) {
      var uniform = this.uniforms[symbol];
      if (uniform) {
        return uniform.value;
      }
    },
    /**
     * Attach a shader instance
     * @param  {clay.Shader} shader
     * @param  {boolean} keepStatus If try to keep uniform and texture
     */
    attachShader: function(shader, keepStatus) {
      var originalUniforms = this.uniforms;
      this.uniforms = shader.createUniforms();
      this.shader = shader;
      var uniforms = this.uniforms;
      this._enabledUniforms = Object.keys(uniforms);
      this._enabledUniforms.sort();
      this._textureUniforms = this._enabledUniforms.filter(function(uniformName) {
        var type = this.uniforms[uniformName].type;
        return type === "t" || type === "tv";
      }, this);
      var originalVertexDefines = this.vertexDefines;
      var originalFragmentDefines = this.fragmentDefines;
      this.vertexDefines = util.clone(shader.vertexDefines);
      this.fragmentDefines = util.clone(shader.fragmentDefines);
      if (keepStatus) {
        for (var symbol in originalUniforms) {
          if (uniforms[symbol]) {
            uniforms[symbol].value = originalUniforms[symbol].value;
          }
        }
        util.defaults(this.vertexDefines, originalVertexDefines);
        util.defaults(this.fragmentDefines, originalFragmentDefines);
      }
      var textureStatus = {};
      for (var key in shader.textures) {
        textureStatus[key] = {
          shaderType: shader.textures[key].shaderType,
          type: shader.textures[key].type,
          enabled: keepStatus && this._textureStatus[key] ? this._textureStatus[key].enabled : false
        };
      }
      this._textureStatus = textureStatus;
      this._programKey = "";
    },
    /**
     * Clone a new material and keep uniforms, shader will not be cloned
     * @return {clay.Material}
     */
    clone: function() {
      var material = new this.constructor({
        name: this.name,
        shader: this.shader
      });
      for (var symbol in this.uniforms) {
        material.uniforms[symbol].value = this.uniforms[symbol].value;
      }
      material.depthTest = this.depthTest;
      material.depthMask = this.depthMask;
      material.transparent = this.transparent;
      material.blend = this.blend;
      material.vertexDefines = util.clone(this.vertexDefines);
      material.fragmentDefines = util.clone(this.fragmentDefines);
      material.enableTexture(this.getEnabledTextures());
      material.precision = this.precision;
      return material;
    },
    /**
     * Add a #define macro in shader code
     * @param  {string} shaderType Can be vertex, fragment or both
     * @param  {string} symbol
     * @param  {number} [val]
     */
    define: function(shaderType, symbol, val) {
      var vertexDefines = this.vertexDefines;
      var fragmentDefines = this.fragmentDefines;
      if (shaderType !== "vertex" && shaderType !== "fragment" && shaderType !== "both" && arguments.length < 3) {
        val = symbol;
        symbol = shaderType;
        shaderType = "both";
      }
      val = val != null ? val : null;
      if (shaderType === "vertex" || shaderType === "both") {
        if (vertexDefines[symbol] !== val) {
          vertexDefines[symbol] = val;
          this._programKey = "";
        }
      }
      if (shaderType === "fragment" || shaderType === "both") {
        if (fragmentDefines[symbol] !== val) {
          fragmentDefines[symbol] = val;
          if (shaderType !== "both") {
            this._programKey = "";
          }
        }
      }
    },
    /**
     * Remove a #define macro in shader code
     * @param  {string} shaderType Can be vertex, fragment or both
     * @param  {string} symbol
     */
    undefine: function(shaderType, symbol) {
      if (shaderType !== "vertex" && shaderType !== "fragment" && shaderType !== "both" && arguments.length < 2) {
        symbol = shaderType;
        shaderType = "both";
      }
      if (shaderType === "vertex" || shaderType === "both") {
        if (this.isDefined("vertex", symbol)) {
          delete this.vertexDefines[symbol];
          this._programKey = "";
        }
      }
      if (shaderType === "fragment" || shaderType === "both") {
        if (this.isDefined("fragment", symbol)) {
          delete this.fragmentDefines[symbol];
          if (shaderType !== "both") {
            this._programKey = "";
          }
        }
      }
    },
    /**
     * If macro is defined in shader.
     * @param  {string} shaderType Can be vertex, fragment or both
     * @param  {string} symbol
     */
    isDefined: function(shaderType, symbol) {
      switch (shaderType) {
        case "vertex":
          return this.vertexDefines[symbol] !== void 0;
        case "fragment":
          return this.fragmentDefines[symbol] !== void 0;
      }
    },
    /**
     * Get macro value defined in shader.
     * @param  {string} shaderType Can be vertex, fragment or both
     * @param  {string} symbol
     */
    getDefine: function(shaderType, symbol) {
      switch (shaderType) {
        case "vertex":
          return this.vertexDefines[symbol];
        case "fragment":
          return this.fragmentDefines[symbol];
      }
    },
    /**
     * Enable a texture, actually it will add a #define macro in the shader code
     * For example, if texture symbol is diffuseMap, it will add a line `#define DIFFUSEMAP_ENABLED` in the shader code
     * @param  {string} symbol
     */
    enableTexture: function(symbol) {
      if (Array.isArray(symbol)) {
        for (var i = 0; i < symbol.length; i++) {
          this.enableTexture(symbol[i]);
        }
        return;
      }
      var status = this._textureStatus[symbol];
      if (status) {
        var isEnabled = status.enabled;
        if (!isEnabled) {
          status.enabled = true;
          this._programKey = "";
        }
      }
    },
    /**
     * Enable all textures used in the shader
     */
    enableTexturesAll: function() {
      var textureStatus = this._textureStatus;
      for (var symbol in textureStatus) {
        textureStatus[symbol].enabled = true;
      }
      this._programKey = "";
    },
    /**
     * Disable a texture, it remove a #define macro in the shader
     * @param  {string} symbol
     */
    disableTexture: function(symbol) {
      if (Array.isArray(symbol)) {
        for (var i = 0; i < symbol.length; i++) {
          this.disableTexture(symbol[i]);
        }
        return;
      }
      var status = this._textureStatus[symbol];
      if (status) {
        var isDisabled = !status.enabled;
        if (!isDisabled) {
          status.enabled = false;
          this._programKey = "";
        }
      }
    },
    /**
     * Disable all textures used in the shader
     */
    disableTexturesAll: function() {
      var textureStatus = this._textureStatus;
      for (var symbol in textureStatus) {
        textureStatus[symbol].enabled = false;
      }
      this._programKey = "";
    },
    /**
     * If texture of given type is enabled.
     * @param  {string}  symbol
     * @return {boolean}
     */
    isTextureEnabled: function(symbol) {
      var textureStatus = this._textureStatus;
      return !!textureStatus[symbol] && textureStatus[symbol].enabled;
    },
    /**
     * Get all enabled textures
     * @return {string[]}
     */
    getEnabledTextures: function() {
      var enabledTextures = [];
      var textureStatus = this._textureStatus;
      for (var symbol in textureStatus) {
        if (textureStatus[symbol].enabled) {
          enabledTextures.push(symbol);
        }
      }
      return enabledTextures;
    },
    /**
     * Mark defines are updated.
     */
    dirtyDefines: function() {
      this._programKey = "";
    },
    getProgramKey: function() {
      if (!this._programKey) {
        this._programKey = getProgramKey$1(
          this.vertexDefines,
          this.fragmentDefines,
          this.getEnabledTextures()
        );
      }
      return this._programKey;
    }
  }
);
var GLMAT_EPSILON = 1e-6;
var GLMAT_ARRAY_TYPE = Array;
var GLMAT_RANDOM$1 = Math.random;
var vec2$3 = {};
vec2$3.create = function() {
  var out = new GLMAT_ARRAY_TYPE(2);
  out[0] = 0;
  out[1] = 0;
  return out;
};
vec2$3.clone = function(a) {
  var out = new GLMAT_ARRAY_TYPE(2);
  out[0] = a[0];
  out[1] = a[1];
  return out;
};
vec2$3.fromValues = function(x, y) {
  var out = new GLMAT_ARRAY_TYPE(2);
  out[0] = x;
  out[1] = y;
  return out;
};
vec2$3.copy = function(out, a) {
  out[0] = a[0];
  out[1] = a[1];
  return out;
};
vec2$3.set = function(out, x, y) {
  out[0] = x;
  out[1] = y;
  return out;
};
vec2$3.add = function(out, a, b) {
  out[0] = a[0] + b[0];
  out[1] = a[1] + b[1];
  return out;
};
vec2$3.subtract = function(out, a, b) {
  out[0] = a[0] - b[0];
  out[1] = a[1] - b[1];
  return out;
};
vec2$3.sub = vec2$3.subtract;
vec2$3.multiply = function(out, a, b) {
  out[0] = a[0] * b[0];
  out[1] = a[1] * b[1];
  return out;
};
vec2$3.mul = vec2$3.multiply;
vec2$3.divide = function(out, a, b) {
  out[0] = a[0] / b[0];
  out[1] = a[1] / b[1];
  return out;
};
vec2$3.div = vec2$3.divide;
vec2$3.min = function(out, a, b) {
  out[0] = Math.min(a[0], b[0]);
  out[1] = Math.min(a[1], b[1]);
  return out;
};
vec2$3.max = function(out, a, b) {
  out[0] = Math.max(a[0], b[0]);
  out[1] = Math.max(a[1], b[1]);
  return out;
};
vec2$3.scale = function(out, a, b) {
  out[0] = a[0] * b;
  out[1] = a[1] * b;
  return out;
};
vec2$3.scaleAndAdd = function(out, a, b, scale) {
  out[0] = a[0] + b[0] * scale;
  out[1] = a[1] + b[1] * scale;
  return out;
};
vec2$3.distance = function(a, b) {
  var x = b[0] - a[0], y = b[1] - a[1];
  return Math.sqrt(x * x + y * y);
};
vec2$3.dist = vec2$3.distance;
vec2$3.squaredDistance = function(a, b) {
  var x = b[0] - a[0], y = b[1] - a[1];
  return x * x + y * y;
};
vec2$3.sqrDist = vec2$3.squaredDistance;
vec2$3.length = function(a) {
  var x = a[0], y = a[1];
  return Math.sqrt(x * x + y * y);
};
vec2$3.len = vec2$3.length;
vec2$3.squaredLength = function(a) {
  var x = a[0], y = a[1];
  return x * x + y * y;
};
vec2$3.sqrLen = vec2$3.squaredLength;
vec2$3.negate = function(out, a) {
  out[0] = -a[0];
  out[1] = -a[1];
  return out;
};
vec2$3.inverse = function(out, a) {
  out[0] = 1 / a[0];
  out[1] = 1 / a[1];
  return out;
};
vec2$3.normalize = function(out, a) {
  var x = a[0], y = a[1];
  var len = x * x + y * y;
  if (len > 0) {
    len = 1 / Math.sqrt(len);
    out[0] = a[0] * len;
    out[1] = a[1] * len;
  }
  return out;
};
vec2$3.dot = function(a, b) {
  return a[0] * b[0] + a[1] * b[1];
};
vec2$3.cross = function(out, a, b) {
  var z = a[0] * b[1] - a[1] * b[0];
  out[0] = out[1] = 0;
  out[2] = z;
  return out;
};
vec2$3.lerp = function(out, a, b, t) {
  var ax = a[0], ay = a[1];
  out[0] = ax + t * (b[0] - ax);
  out[1] = ay + t * (b[1] - ay);
  return out;
};
vec2$3.random = function(out, scale) {
  scale = scale || 1;
  var r = GLMAT_RANDOM() * 2 * Math.PI;
  out[0] = Math.cos(r) * scale;
  out[1] = Math.sin(r) * scale;
  return out;
};
vec2$3.transformMat2 = function(out, a, m) {
  var x = a[0], y = a[1];
  out[0] = m[0] * x + m[2] * y;
  out[1] = m[1] * x + m[3] * y;
  return out;
};
vec2$3.transformMat2d = function(out, a, m) {
  var x = a[0], y = a[1];
  out[0] = m[0] * x + m[2] * y + m[4];
  out[1] = m[1] * x + m[3] * y + m[5];
  return out;
};
vec2$3.transformMat3 = function(out, a, m) {
  var x = a[0], y = a[1];
  out[0] = m[0] * x + m[3] * y + m[6];
  out[1] = m[1] * x + m[4] * y + m[7];
  return out;
};
vec2$3.transformMat4 = function(out, a, m) {
  var x = a[0], y = a[1];
  out[0] = m[0] * x + m[4] * y + m[12];
  out[1] = m[1] * x + m[5] * y + m[13];
  return out;
};
vec2$3.forEach = function() {
  var vec = vec2$3.create();
  return function(a, stride, offset, count, fn, arg) {
    var i, l;
    if (!stride) {
      stride = 2;
    }
    if (!offset) {
      offset = 0;
    }
    if (count) {
      l = Math.min(count * stride + offset, a.length);
    } else {
      l = a.length;
    }
    for (i = offset; i < l; i += stride) {
      vec[0] = a[i];
      vec[1] = a[i + 1];
      fn(vec, vec, arg);
      a[i] = vec[0];
      a[i + 1] = vec[1];
    }
    return a;
  };
}();
var Vector2 = function(x, y) {
  x = x || 0;
  y = y || 0;
  this.array = vec2$3.fromValues(x, y);
  this._dirty = true;
};
Vector2.prototype = {
  constructor: Vector2,
  /**
   * Add b to self
   * @param  {clay.Vector2} b
   * @return {clay.Vector2}
   */
  add: function(b) {
    vec2$3.add(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Set x and y components
   * @param  {number}  x
   * @param  {number}  y
   * @return {clay.Vector2}
   */
  set: function(x, y) {
    this.array[0] = x;
    this.array[1] = y;
    this._dirty = true;
    return this;
  },
  /**
   * Set x and y components from array
   * @param  {Float32Array|number[]} arr
   * @return {clay.Vector2}
   */
  setArray: function(arr) {
    this.array[0] = arr[0];
    this.array[1] = arr[1];
    this._dirty = true;
    return this;
  },
  /**
   * Clone a new Vector2
   * @return {clay.Vector2}
   */
  clone: function() {
    return new Vector2(this.x, this.y);
  },
  /**
   * Copy x, y from b
   * @param  {clay.Vector2} b
   * @return {clay.Vector2}
   */
  copy: function(b) {
    vec2$3.copy(this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Cross product of self and b, written to a Vector3 out
   * @param  {clay.Vector3} out
   * @param  {clay.Vector2} b
   * @return {clay.Vector2}
   */
  cross: function(out, b) {
    vec2$3.cross(out.array, this.array, b.array);
    out._dirty = true;
    return this;
  },
  /**
   * Alias for distance
   * @param  {clay.Vector2} b
   * @return {number}
   */
  dist: function(b) {
    return vec2$3.dist(this.array, b.array);
  },
  /**
   * Distance between self and b
   * @param  {clay.Vector2} b
   * @return {number}
   */
  distance: function(b) {
    return vec2$3.distance(this.array, b.array);
  },
  /**
   * Alias for divide
   * @param  {clay.Vector2} b
   * @return {clay.Vector2}
   */
  div: function(b) {
    vec2$3.div(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Divide self by b
   * @param  {clay.Vector2} b
   * @return {clay.Vector2}
   */
  divide: function(b) {
    vec2$3.divide(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Dot product of self and b
   * @param  {clay.Vector2} b
   * @return {number}
   */
  dot: function(b) {
    return vec2$3.dot(this.array, b.array);
  },
  /**
   * Alias of length
   * @return {number}
   */
  len: function() {
    return vec2$3.len(this.array);
  },
  /**
   * Calculate the length
   * @return {number}
   */
  length: function() {
    return vec2$3.length(this.array);
  },
  /**
   * Linear interpolation between a and b
   * @param  {clay.Vector2} a
   * @param  {clay.Vector2} b
   * @param  {number}  t
   * @return {clay.Vector2}
   */
  lerp: function(a, b, t) {
    vec2$3.lerp(this.array, a.array, b.array, t);
    this._dirty = true;
    return this;
  },
  /**
   * Minimum of self and b
   * @param  {clay.Vector2} b
   * @return {clay.Vector2}
   */
  min: function(b) {
    vec2$3.min(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Maximum of self and b
   * @param  {clay.Vector2} b
   * @return {clay.Vector2}
   */
  max: function(b) {
    vec2$3.max(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Alias for multiply
   * @param  {clay.Vector2} b
   * @return {clay.Vector2}
   */
  mul: function(b) {
    vec2$3.mul(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Mutiply self and b
   * @param  {clay.Vector2} b
   * @return {clay.Vector2}
   */
  multiply: function(b) {
    vec2$3.multiply(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Negate self
   * @return {clay.Vector2}
   */
  negate: function() {
    vec2$3.negate(this.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Normalize self
   * @return {clay.Vector2}
   */
  normalize: function() {
    vec2$3.normalize(this.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Generate random x, y components with a given scale
   * @param  {number} scale
   * @return {clay.Vector2}
   */
  random: function(scale) {
    vec2$3.random(this.array, scale);
    this._dirty = true;
    return this;
  },
  /**
   * Scale self
   * @param  {number}  scale
   * @return {clay.Vector2}
   */
  scale: function(s) {
    vec2$3.scale(this.array, this.array, s);
    this._dirty = true;
    return this;
  },
  /**
   * Scale b and add to self
   * @param  {clay.Vector2} b
   * @param  {number}  scale
   * @return {clay.Vector2}
   */
  scaleAndAdd: function(b, s) {
    vec2$3.scaleAndAdd(this.array, this.array, b.array, s);
    this._dirty = true;
    return this;
  },
  /**
   * Alias for squaredDistance
   * @param  {clay.Vector2} b
   * @return {number}
   */
  sqrDist: function(b) {
    return vec2$3.sqrDist(this.array, b.array);
  },
  /**
   * Squared distance between self and b
   * @param  {clay.Vector2} b
   * @return {number}
   */
  squaredDistance: function(b) {
    return vec2$3.squaredDistance(this.array, b.array);
  },
  /**
   * Alias for squaredLength
   * @return {number}
   */
  sqrLen: function() {
    return vec2$3.sqrLen(this.array);
  },
  /**
   * Squared length of self
   * @return {number}
   */
  squaredLength: function() {
    return vec2$3.squaredLength(this.array);
  },
  /**
   * Alias for subtract
   * @param  {clay.Vector2} b
   * @return {clay.Vector2}
   */
  sub: function(b) {
    vec2$3.sub(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Subtract b from self
   * @param  {clay.Vector2} b
   * @return {clay.Vector2}
   */
  subtract: function(b) {
    vec2$3.subtract(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Transform self with a Matrix2 m
   * @param  {clay.Matrix2} m
   * @return {clay.Vector2}
   */
  transformMat2: function(m) {
    vec2$3.transformMat2(this.array, this.array, m.array);
    this._dirty = true;
    return this;
  },
  /**
   * Transform self with a Matrix2d m
   * @param  {clay.Matrix2d} m
   * @return {clay.Vector2}
   */
  transformMat2d: function(m) {
    vec2$3.transformMat2d(this.array, this.array, m.array);
    this._dirty = true;
    return this;
  },
  /**
   * Transform self with a Matrix3 m
   * @param  {clay.Matrix3} m
   * @return {clay.Vector2}
   */
  transformMat3: function(m) {
    vec2$3.transformMat3(this.array, this.array, m.array);
    this._dirty = true;
    return this;
  },
  /**
   * Transform self with a Matrix4 m
   * @param  {clay.Matrix4} m
   * @return {clay.Vector2}
   */
  transformMat4: function(m) {
    vec2$3.transformMat4(this.array, this.array, m.array);
    this._dirty = true;
    return this;
  },
  toString: function() {
    return "[" + Array.prototype.join.call(this.array, ",") + "]";
  },
  toArray: function() {
    return Array.prototype.slice.call(this.array);
  }
};
if (Object.defineProperty) {
  var proto$4 = Vector2.prototype;
  Object.defineProperty(proto$4, "x", {
    get: function() {
      return this.array[0];
    },
    set: function(value) {
      this.array[0] = value;
      this._dirty = true;
    }
  });
  Object.defineProperty(proto$4, "y", {
    get: function() {
      return this.array[1];
    },
    set: function(value) {
      this.array[1] = value;
      this._dirty = true;
    }
  });
}
Vector2.add = function(out, a, b) {
  vec2$3.add(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Vector2.set = function(out, x, y) {
  vec2$3.set(out.array, x, y);
  out._dirty = true;
  return out;
};
Vector2.copy = function(out, b) {
  vec2$3.copy(out.array, b.array);
  out._dirty = true;
  return out;
};
Vector2.cross = function(out, a, b) {
  vec2$3.cross(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Vector2.dist = function(a, b) {
  return vec2$3.distance(a.array, b.array);
};
Vector2.distance = Vector2.dist;
Vector2.div = function(out, a, b) {
  vec2$3.divide(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Vector2.divide = Vector2.div;
Vector2.dot = function(a, b) {
  return vec2$3.dot(a.array, b.array);
};
Vector2.len = function(b) {
  return vec2$3.length(b.array);
};
Vector2.lerp = function(out, a, b, t) {
  vec2$3.lerp(out.array, a.array, b.array, t);
  out._dirty = true;
  return out;
};
Vector2.min = function(out, a, b) {
  vec2$3.min(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Vector2.max = function(out, a, b) {
  vec2$3.max(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Vector2.mul = function(out, a, b) {
  vec2$3.multiply(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Vector2.multiply = Vector2.mul;
Vector2.negate = function(out, a) {
  vec2$3.negate(out.array, a.array);
  out._dirty = true;
  return out;
};
Vector2.normalize = function(out, a) {
  vec2$3.normalize(out.array, a.array);
  out._dirty = true;
  return out;
};
Vector2.random = function(out, scale) {
  vec2$3.random(out.array, scale);
  out._dirty = true;
  return out;
};
Vector2.scale = function(out, a, scale) {
  vec2$3.scale(out.array, a.array, scale);
  out._dirty = true;
  return out;
};
Vector2.scaleAndAdd = function(out, a, b, scale) {
  vec2$3.scaleAndAdd(out.array, a.array, b.array, scale);
  out._dirty = true;
  return out;
};
Vector2.sqrDist = function(a, b) {
  return vec2$3.sqrDist(a.array, b.array);
};
Vector2.squaredDistance = Vector2.sqrDist;
Vector2.sqrLen = function(a) {
  return vec2$3.sqrLen(a.array);
};
Vector2.squaredLength = Vector2.sqrLen;
Vector2.sub = function(out, a, b) {
  vec2$3.subtract(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Vector2.subtract = Vector2.sub;
Vector2.transformMat2 = function(out, a, m) {
  vec2$3.transformMat2(out.array, a.array, m.array);
  out._dirty = true;
  return out;
};
Vector2.transformMat2d = function(out, a, m) {
  vec2$3.transformMat2d(out.array, a.array, m.array);
  out._dirty = true;
  return out;
};
Vector2.transformMat3 = function(out, a, m) {
  vec2$3.transformMat3(out.array, a.array, m.array);
  out._dirty = true;
  return out;
};
Vector2.transformMat4 = function(out, a, m) {
  vec2$3.transformMat4(out.array, a.array, m.array);
  out._dirty = true;
  return out;
};
var SHADER_STATE_TO_ENABLE = 1;
var SHADER_STATE_KEEP_ENABLE = 2;
var SHADER_STATE_PENDING = 3;
var enabledAttributeList = {};
function addLineNumbers(string) {
  var chunks = string.split("\n");
  for (var i = 0, il = chunks.length; i < il; i++) {
    chunks[i] = i + 1 + ": " + chunks[i];
  }
  return chunks.join("\n");
}
function checkShaderErrorMsg(_gl, shader, shaderString) {
  if (!_gl.getShaderParameter(shader, _gl.COMPILE_STATUS)) {
    return [_gl.getShaderInfoLog(shader), addLineNumbers(shaderString)].join("\n");
  }
}
var tmpFloat32Array16 = new vendor.Float32Array(16);
var GLProgram = Base.extend({
  uniformSemantics: {},
  attributes: {}
}, function() {
  this._locations = {};
  this._textureSlot = 0;
  this._program = null;
}, {
  bind: function(renderer) {
    this._textureSlot = 0;
    renderer.gl.useProgram(this._program);
  },
  hasUniform: function(symbol) {
    var location = this._locations[symbol];
    return location !== null && location !== void 0;
  },
  useTextureSlot: function(renderer, texture, slot) {
    if (texture) {
      renderer.gl.activeTexture(renderer.gl.TEXTURE0 + slot);
      if (texture.isRenderable()) {
        texture.bind(renderer);
      } else {
        texture.unbind(renderer);
      }
    }
  },
  currentTextureSlot: function() {
    return this._textureSlot;
  },
  resetTextureSlot: function(slot) {
    this._textureSlot = slot || 0;
  },
  takeCurrentTextureSlot: function(renderer, texture) {
    var textureSlot = this._textureSlot;
    this.useTextureSlot(renderer, texture, textureSlot);
    this._textureSlot++;
    return textureSlot;
  },
  setUniform: function(_gl, type, symbol, value) {
    var locationMap = this._locations;
    var location = locationMap[symbol];
    if (location === null || location === void 0) {
      return false;
    }
    switch (type) {
      case "m4":
        if (!(value instanceof Float32Array)) {
          for (var i = 0; i < value.length; i++) {
            tmpFloat32Array16[i] = value[i];
          }
          value = tmpFloat32Array16;
        }
        _gl.uniformMatrix4fv(location, false, value);
        break;
      case "2i":
        _gl.uniform2i(location, value[0], value[1]);
        break;
      case "2f":
        _gl.uniform2f(location, value[0], value[1]);
        break;
      case "3i":
        _gl.uniform3i(location, value[0], value[1], value[2]);
        break;
      case "3f":
        _gl.uniform3f(location, value[0], value[1], value[2]);
        break;
      case "4i":
        _gl.uniform4i(location, value[0], value[1], value[2], value[3]);
        break;
      case "4f":
        _gl.uniform4f(location, value[0], value[1], value[2], value[3]);
        break;
      case "1i":
        _gl.uniform1i(location, value);
        break;
      case "1f":
        _gl.uniform1f(location, value);
        break;
      case "1fv":
        _gl.uniform1fv(location, value);
        break;
      case "1iv":
        _gl.uniform1iv(location, value);
        break;
      case "2iv":
        _gl.uniform2iv(location, value);
        break;
      case "2fv":
        _gl.uniform2fv(location, value);
        break;
      case "3iv":
        _gl.uniform3iv(location, value);
        break;
      case "3fv":
        _gl.uniform3fv(location, value);
        break;
      case "4iv":
        _gl.uniform4iv(location, value);
        break;
      case "4fv":
        _gl.uniform4fv(location, value);
        break;
      case "m2":
      case "m2v":
        _gl.uniformMatrix2fv(location, false, value);
        break;
      case "m3":
      case "m3v":
        _gl.uniformMatrix3fv(location, false, value);
        break;
      case "m4v":
        if (Array.isArray(value) && Array.isArray(value[0])) {
          var array = new vendor.Float32Array(value.length * 16);
          var cursor = 0;
          for (var i = 0; i < value.length; i++) {
            var item = value[i];
            for (var j = 0; j < 16; j++) {
              array[cursor++] = item[j];
            }
          }
          _gl.uniformMatrix4fv(location, false, array);
        } else {
          _gl.uniformMatrix4fv(location, false, value);
        }
        break;
    }
    return true;
  },
  setUniformOfSemantic: function(_gl, semantic, val) {
    var semanticInfo = this.uniformSemantics[semantic];
    if (semanticInfo) {
      return this.setUniform(_gl, semanticInfo.type, semanticInfo.symbol, val);
    }
    return false;
  },
  // Used for creating VAO
  // Enable the attributes passed in and disable the rest
  // Example Usage:
  // enableAttributes(renderer, ["position", "texcoords"])
  enableAttributes: function(renderer, attribList, vao) {
    var _gl = renderer.gl;
    var program = this._program;
    var locationMap = this._locations;
    var enabledAttributeListInContext;
    if (vao) {
      enabledAttributeListInContext = vao.__enabledAttributeList;
    } else {
      enabledAttributeListInContext = enabledAttributeList[renderer.__uid__];
    }
    if (!enabledAttributeListInContext) {
      if (vao) {
        enabledAttributeListInContext = vao.__enabledAttributeList = [];
      } else {
        enabledAttributeListInContext = enabledAttributeList[renderer.__uid__] = [];
      }
    }
    var locationList = [];
    for (var i = 0; i < attribList.length; i++) {
      var symbol = attribList[i];
      if (!this.attributes[symbol]) {
        locationList[i] = -1;
        continue;
      }
      var location = locationMap[symbol];
      if (location == null) {
        location = _gl.getAttribLocation(program, symbol);
        if (location === -1) {
          locationList[i] = -1;
          continue;
        }
        locationMap[symbol] = location;
      }
      locationList[i] = location;
      if (!enabledAttributeListInContext[location]) {
        enabledAttributeListInContext[location] = SHADER_STATE_TO_ENABLE;
      } else {
        enabledAttributeListInContext[location] = SHADER_STATE_KEEP_ENABLE;
      }
    }
    for (var i = 0; i < enabledAttributeListInContext.length; i++) {
      switch (enabledAttributeListInContext[i]) {
        case SHADER_STATE_TO_ENABLE:
          _gl.enableVertexAttribArray(i);
          enabledAttributeListInContext[i] = SHADER_STATE_PENDING;
          break;
        case SHADER_STATE_KEEP_ENABLE:
          enabledAttributeListInContext[i] = SHADER_STATE_PENDING;
          break;
        // Expired
        case SHADER_STATE_PENDING:
          _gl.disableVertexAttribArray(i);
          enabledAttributeListInContext[i] = 0;
          break;
      }
    }
    return locationList;
  },
  getAttribLocation: function(_gl, symbol) {
    var locationMap = this._locations;
    var location = locationMap[symbol];
    if (location == null) {
      location = _gl.getAttribLocation(this._program, symbol);
      locationMap[symbol] = location;
    }
    return location;
  },
  buildProgram: function(_gl, shader, vertexShaderCode, fragmentShaderCode) {
    var vertexShader = _gl.createShader(_gl.VERTEX_SHADER);
    var program = _gl.createProgram();
    _gl.shaderSource(vertexShader, vertexShaderCode);
    _gl.compileShader(vertexShader);
    var fragmentShader = _gl.createShader(_gl.FRAGMENT_SHADER);
    _gl.shaderSource(fragmentShader, fragmentShaderCode);
    _gl.compileShader(fragmentShader);
    var msg = checkShaderErrorMsg(_gl, vertexShader, vertexShaderCode);
    if (msg) {
      return msg;
    }
    msg = checkShaderErrorMsg(_gl, fragmentShader, fragmentShaderCode);
    if (msg) {
      return msg;
    }
    _gl.attachShader(program, vertexShader);
    _gl.attachShader(program, fragmentShader);
    if (shader.attributeSemantics["POSITION"]) {
      _gl.bindAttribLocation(program, 0, shader.attributeSemantics["POSITION"].symbol);
    } else {
      var keys2 = Object.keys(this.attributes);
      _gl.bindAttribLocation(program, 0, keys2[0]);
    }
    _gl.linkProgram(program);
    _gl.deleteShader(vertexShader);
    _gl.deleteShader(fragmentShader);
    this._program = program;
    this.vertexCode = vertexShaderCode;
    this.fragmentCode = fragmentShaderCode;
    if (!_gl.getProgramParameter(program, _gl.LINK_STATUS)) {
      return "Could not link program\n" + _gl.getProgramInfoLog(program);
    }
    for (var i = 0; i < shader.uniforms.length; i++) {
      var uniformSymbol = shader.uniforms[i];
      this._locations[uniformSymbol] = _gl.getUniformLocation(program, uniformSymbol);
    }
  }
});
var loopRegex = /for\s*?\(int\s*?_idx_\s*\=\s*([\w-]+)\;\s*_idx_\s*<\s*([\w-]+);\s*_idx_\s*\+\+\s*\)\s*\{\{([\s\S]+?)(?=\}\})\}\}/g;
function unrollLoop(shaderStr, defines, lightsNumbers) {
  function replace(match, start, end, snippet) {
    var unroll = "";
    if (isNaN(start)) {
      if (start in defines) {
        start = defines[start];
      } else {
        start = lightNumberDefines[start];
      }
    }
    if (isNaN(end)) {
      if (end in defines) {
        end = defines[end];
      } else {
        end = lightNumberDefines[end];
      }
    }
    for (var idx = parseInt(start); idx < parseInt(end); idx++) {
      unroll += "{" + snippet.replace(/float\s*\(\s*_idx_\s*\)/g, idx.toFixed(1)).replace(/_idx_/g, idx) + "}";
    }
    return unroll;
  }
  var lightNumberDefines = {};
  for (var lightType in lightsNumbers) {
    lightNumberDefines[lightType + "_COUNT"] = lightsNumbers[lightType];
  }
  return shaderStr.replace(loopRegex, replace);
}
function getDefineCode(defines, lightsNumbers, enabledTextures) {
  var defineStr = [];
  if (lightsNumbers) {
    for (var lightType in lightsNumbers) {
      var count = lightsNumbers[lightType];
      if (count > 0) {
        defineStr.push("#define " + lightType.toUpperCase() + "_COUNT " + count);
      }
    }
  }
  if (enabledTextures) {
    for (var i = 0; i < enabledTextures.length; i++) {
      var symbol = enabledTextures[i];
      defineStr.push("#define " + symbol.toUpperCase() + "_ENABLED");
    }
  }
  for (var symbol in defines) {
    var value = defines[symbol];
    if (value === null) {
      defineStr.push("#define " + symbol);
    } else {
      defineStr.push("#define " + symbol + " " + value.toString());
    }
  }
  return defineStr.join("\n");
}
function getExtensionCode(exts) {
  var extensionStr = [];
  for (var i = 0; i < exts.length; i++) {
    extensionStr.push("#extension GL_" + exts[i] + " : enable");
  }
  return extensionStr.join("\n");
}
function getPrecisionCode(precision) {
  return ["precision", precision, "float"].join(" ") + ";\n" + ["precision", precision, "int"].join(" ") + ";\n" + ["precision", precision, "sampler2D"].join(" ") + ";\n";
}
function ProgramManager(renderer) {
  this._renderer = renderer;
  this._cache = {};
}
ProgramManager.prototype.getProgram = function(renderable, material, scene) {
  var cache = this._cache;
  var isSkinnedMesh = renderable.isSkinnedMesh && renderable.isSkinnedMesh();
  var isInstancedMesh = renderable.isInstancedMesh && renderable.isInstancedMesh();
  var key = "s" + material.shader.shaderID + "m" + material.getProgramKey();
  if (scene) {
    key += "se" + scene.getProgramKey(renderable.lightGroup);
  }
  if (isSkinnedMesh) {
    key += ",sk" + renderable.joints.length;
  }
  if (isInstancedMesh) {
    key += ",is";
  }
  var program = cache[key];
  if (program) {
    return program;
  }
  var lightsNumbers = scene ? scene.getLightsNumbers(renderable.lightGroup) : {};
  var renderer = this._renderer;
  var _gl = renderer.gl;
  var enabledTextures = material.getEnabledTextures();
  var extraDefineCode = "";
  if (isSkinnedMesh) {
    var skinDefines = {
      SKINNING: null,
      JOINT_COUNT: renderable.joints.length
    };
    if (renderable.joints.length > renderer.getMaxJointNumber()) {
      skinDefines.USE_SKIN_MATRICES_TEXTURE = null;
    }
    extraDefineCode += "\n" + getDefineCode(skinDefines) + "\n";
  }
  if (isInstancedMesh) {
    extraDefineCode += "\n#define INSTANCING\n";
  }
  var vertexDefineStr = extraDefineCode + getDefineCode(material.vertexDefines, lightsNumbers, enabledTextures);
  var fragmentDefineStr = extraDefineCode + getDefineCode(material.fragmentDefines, lightsNumbers, enabledTextures);
  var vertexCode = vertexDefineStr + "\n" + material.shader.vertex;
  var extensions = [
    "OES_standard_derivatives",
    "EXT_shader_texture_lod"
  ].filter(function(ext) {
    return renderer.getGLExtension(ext) != null;
  });
  if (extensions.indexOf("EXT_shader_texture_lod") >= 0) {
    fragmentDefineStr += "\n#define SUPPORT_TEXTURE_LOD";
  }
  if (extensions.indexOf("OES_standard_derivatives") >= 0) {
    fragmentDefineStr += "\n#define SUPPORT_STANDARD_DERIVATIVES";
  }
  var fragmentCode = getExtensionCode(extensions) + "\n" + getPrecisionCode(material.precision) + "\n" + fragmentDefineStr + "\n" + material.shader.fragment;
  var finalVertexCode = unrollLoop(vertexCode, material.vertexDefines, lightsNumbers);
  var finalFragmentCode = unrollLoop(fragmentCode, material.fragmentDefines, lightsNumbers);
  var program = new GLProgram();
  program.uniformSemantics = material.shader.uniformSemantics;
  program.attributes = material.shader.attributes;
  var errorMsg = program.buildProgram(_gl, material.shader, finalVertexCode, finalFragmentCode);
  program.__error = errorMsg;
  cache[key] = program;
  return program;
};
var uniformRegex = /uniform\s+(bool|float|int|vec2|vec3|vec4|ivec2|ivec3|ivec4|mat2|mat3|mat4|sampler2D|samplerCube)\s+([\s\S]*?);/g;
var attributeRegex = /attribute\s+(float|int|vec2|vec3|vec4)\s+([\s\S]*?);/g;
var defineRegex = /#define\s+(\w+)?(\s+[\d-.]+)?\s*;?\s*\n/g;
var uniformTypeMap = {
  "bool": "1i",
  "int": "1i",
  "sampler2D": "t",
  "samplerCube": "t",
  "float": "1f",
  "vec2": "2f",
  "vec3": "3f",
  "vec4": "4f",
  "ivec2": "2i",
  "ivec3": "3i",
  "ivec4": "4i",
  "mat2": "m2",
  "mat3": "m3",
  "mat4": "m4"
};
function createZeroArray(len) {
  var arr = [];
  for (var i = 0; i < len; i++) {
    arr[i] = 0;
  }
  return arr;
}
var uniformValueConstructor = {
  "bool": function() {
    return true;
  },
  "int": function() {
    return 0;
  },
  "float": function() {
    return 0;
  },
  "sampler2D": function() {
    return null;
  },
  "samplerCube": function() {
    return null;
  },
  "vec2": function() {
    return createZeroArray(2);
  },
  "vec3": function() {
    return createZeroArray(3);
  },
  "vec4": function() {
    return createZeroArray(4);
  },
  "ivec2": function() {
    return createZeroArray(2);
  },
  "ivec3": function() {
    return createZeroArray(3);
  },
  "ivec4": function() {
    return createZeroArray(4);
  },
  "mat2": function() {
    return createZeroArray(4);
  },
  "mat3": function() {
    return createZeroArray(9);
  },
  "mat4": function() {
    return createZeroArray(16);
  },
  "array": function() {
    return [];
  }
};
var attributeSemantics = [
  "POSITION",
  "NORMAL",
  "BINORMAL",
  "TANGENT",
  "TEXCOORD",
  "TEXCOORD_0",
  "TEXCOORD_1",
  "COLOR",
  // Skinning
  // https://github.com/KhronosGroup/glTF/blob/master/specification/README.md#semantics
  "JOINT",
  "WEIGHT"
];
var uniformSemantics = [
  "SKIN_MATRIX",
  // Information about viewport
  "VIEWPORT_SIZE",
  "VIEWPORT",
  "DEVICEPIXELRATIO",
  // Window size for window relative coordinate
  // https://www.opengl.org/sdk/docs/man/html/gl_FragCoord.xhtml
  "WINDOW_SIZE",
  // Infomation about camera
  "NEAR",
  "FAR",
  // Time
  "TIME"
];
var matrixSemantics = [
  "WORLD",
  "VIEW",
  "PROJECTION",
  "WORLDVIEW",
  "VIEWPROJECTION",
  "WORLDVIEWPROJECTION",
  "WORLDINVERSE",
  "VIEWINVERSE",
  "PROJECTIONINVERSE",
  "WORLDVIEWINVERSE",
  "VIEWPROJECTIONINVERSE",
  "WORLDVIEWPROJECTIONINVERSE",
  "WORLDTRANSPOSE",
  "VIEWTRANSPOSE",
  "PROJECTIONTRANSPOSE",
  "WORLDVIEWTRANSPOSE",
  "VIEWPROJECTIONTRANSPOSE",
  "WORLDVIEWPROJECTIONTRANSPOSE",
  "WORLDINVERSETRANSPOSE",
  "VIEWINVERSETRANSPOSE",
  "PROJECTIONINVERSETRANSPOSE",
  "WORLDVIEWINVERSETRANSPOSE",
  "VIEWPROJECTIONINVERSETRANSPOSE",
  "WORLDVIEWPROJECTIONINVERSETRANSPOSE"
];
var attributeSizeMap = {
  // WebGL does not support integer attributes
  "vec4": 4,
  "vec3": 3,
  "vec2": 2,
  "float": 1
};
var shaderIDCache = {};
var shaderCodeCache = {};
function getShaderID(vertex, fragment) {
  var key = "vertex:" + vertex + "fragment:" + fragment;
  if (shaderIDCache[key]) {
    return shaderIDCache[key];
  }
  var id = util.genGUID();
  shaderIDCache[key] = id;
  shaderCodeCache[id] = {
    vertex,
    fragment
  };
  return id;
}
function removeComment(code) {
  return code.replace(/[ \t]*\/\/.*\n/g, "").replace(/[ \t]*\/\*[\s\S]*?\*\//g, "");
}
function logSyntaxError() {
  console.error("Wrong uniform/attributes syntax");
}
function parseDeclarations(type, line) {
  var speratorsRegexp = /[,=\(\):]/;
  var tokens = line.replace(/:\s*\[\s*(.*)\s*\]/g, "=" + type + "($1)").replace(/\s+/g, "").split(/(?=[,=\(\):])/g);
  var newTokens = [];
  for (var i = 0; i < tokens.length; i++) {
    if (tokens[i].match(speratorsRegexp)) {
      newTokens.push(
        tokens[i].charAt(0),
        tokens[i].slice(1)
      );
    } else {
      newTokens.push(tokens[i]);
    }
  }
  tokens = newTokens;
  var TYPE_SYMBOL = 0;
  var TYPE_ASSIGN = 1;
  var TYPE_VEC = 2;
  var TYPE_ARR = 3;
  var TYPE_SEMANTIC = 4;
  var TYPE_NORMAL = 5;
  var opType = TYPE_SYMBOL;
  var declarations = {};
  var declarationValue = null;
  var currentDeclaration;
  addSymbol(tokens[0]);
  function addSymbol(symbol) {
    if (!symbol) {
      logSyntaxError();
    }
    var arrResult = symbol.match(/\[(.*?)\]/);
    currentDeclaration = symbol.replace(/\[(.*?)\]/, "");
    declarations[currentDeclaration] = {};
    if (arrResult) {
      declarations[currentDeclaration].isArray = true;
      declarations[currentDeclaration].arraySize = arrResult[1];
    }
  }
  for (var i = 1; i < tokens.length; i++) {
    var token = tokens[i];
    if (!token) {
      continue;
    }
    if (token === "=") {
      if (opType !== TYPE_SYMBOL && opType !== TYPE_ARR) {
        logSyntaxError();
        break;
      }
      opType = TYPE_ASSIGN;
      continue;
    } else if (token === ":") {
      opType = TYPE_SEMANTIC;
      continue;
    } else if (token === ",") {
      if (opType === TYPE_VEC) {
        if (!(declarationValue instanceof Array)) {
          logSyntaxError();
          break;
        }
        declarationValue.push(+tokens[++i]);
      } else {
        opType = TYPE_NORMAL;
      }
      continue;
    } else if (token === ")") {
      declarations[currentDeclaration].value = new vendor.Float32Array(declarationValue);
      declarationValue = null;
      opType = TYPE_NORMAL;
      continue;
    } else if (token === "(") {
      if (opType !== TYPE_VEC) {
        logSyntaxError();
        break;
      }
      if (!(declarationValue instanceof Array)) {
        logSyntaxError();
        break;
      }
      declarationValue.push(+tokens[++i]);
      continue;
    } else if (token.indexOf("vec") >= 0) {
      if (opType !== TYPE_ASSIGN && opType !== TYPE_SEMANTIC) {
        logSyntaxError();
        break;
      }
      opType = TYPE_VEC;
      declarationValue = [];
      continue;
    } else if (opType === TYPE_ASSIGN) {
      if (type === "bool") {
        declarations[currentDeclaration].value = token === "true";
      } else {
        declarations[currentDeclaration].value = parseFloat(token);
      }
      declarationValue = null;
      continue;
    } else if (opType === TYPE_SEMANTIC) {
      var semantic = token;
      if (attributeSemantics.indexOf(semantic) >= 0 || uniformSemantics.indexOf(semantic) >= 0 || matrixSemantics.indexOf(semantic) >= 0) {
        declarations[currentDeclaration].semantic = semantic;
      } else if (semantic === "ignore" || semantic === "unconfigurable") {
        declarations[currentDeclaration].ignore = true;
      } else {
        if (type === "bool") {
          declarations[currentDeclaration].value = semantic === "true";
        } else {
          declarations[currentDeclaration].value = parseFloat(semantic);
        }
      }
      continue;
    }
    addSymbol(token);
    opType = TYPE_SYMBOL;
  }
  return declarations;
}
function Shader(vertex, fragment) {
  if (typeof vertex === "object") {
    fragment = vertex.fragment;
    vertex = vertex.vertex;
  }
  vertex = removeComment(vertex);
  fragment = removeComment(fragment);
  this._shaderID = getShaderID(vertex, fragment);
  this._vertexCode = Shader.parseImport(vertex);
  this._fragmentCode = Shader.parseImport(fragment);
  this.attributeSemantics = {};
  this.matrixSemantics = {};
  this.uniformSemantics = {};
  this.matrixSemanticKeys = [];
  this.uniformTemplates = {};
  this.attributes = {};
  this.textures = {};
  this.vertexDefines = {};
  this.fragmentDefines = {};
  this._parseAttributes();
  this._parseUniforms();
  this._parseDefines();
}
Shader.prototype = {
  constructor: Shader,
  // Create a new uniform instance for material
  createUniforms: function() {
    var uniforms = {};
    for (var symbol in this.uniformTemplates) {
      var uniformTpl = this.uniformTemplates[symbol];
      uniforms[symbol] = {
        type: uniformTpl.type,
        value: uniformTpl.value()
      };
    }
    return uniforms;
  },
  _parseImport: function() {
    this._vertexCode = Shader.parseImport(this.vertex);
    this._fragmentCode = Shader.parseImport(this.fragment);
  },
  _addSemanticUniform: function(symbol, uniformType, semantic) {
    if (attributeSemantics.indexOf(semantic) >= 0) {
      this.attributeSemantics[semantic] = {
        symbol,
        type: uniformType
      };
    } else if (matrixSemantics.indexOf(semantic) >= 0) {
      var isTranspose = false;
      var semanticNoTranspose = semantic;
      if (semantic.match(/TRANSPOSE$/)) {
        isTranspose = true;
        semanticNoTranspose = semantic.slice(0, -9);
      }
      this.matrixSemantics[semantic] = {
        symbol,
        type: uniformType,
        isTranspose,
        semanticNoTranspose
      };
    } else if (uniformSemantics.indexOf(semantic) >= 0) {
      this.uniformSemantics[semantic] = {
        symbol,
        type: uniformType
      };
    }
  },
  _addMaterialUniform: function(symbol, type, uniformType, defaultValueFunc, isArray2, materialUniforms) {
    materialUniforms[symbol] = {
      type: uniformType,
      value: isArray2 ? uniformValueConstructor["array"] : defaultValueFunc || uniformValueConstructor[type],
      semantic: null
    };
  },
  _parseUniforms: function() {
    var uniforms = {};
    var self2 = this;
    var shaderType = "vertex";
    this._uniformList = [];
    this._vertexCode = this._vertexCode.replace(uniformRegex, _uniformParser);
    shaderType = "fragment";
    this._fragmentCode = this._fragmentCode.replace(uniformRegex, _uniformParser);
    self2.matrixSemanticKeys = Object.keys(this.matrixSemantics);
    function makeDefaultValueFunc(value) {
      return value != null ? function() {
        return value;
      } : null;
    }
    function _uniformParser(str, type, content) {
      var declaredUniforms = parseDeclarations(type, content);
      var uniformMainStr = [];
      for (var symbol in declaredUniforms) {
        var uniformInfo = declaredUniforms[symbol];
        var semantic = uniformInfo.semantic;
        var tmpStr = symbol;
        var uniformType = uniformTypeMap[type];
        var defaultValueFunc = makeDefaultValueFunc(declaredUniforms[symbol].value);
        if (declaredUniforms[symbol].isArray) {
          tmpStr += "[" + declaredUniforms[symbol].arraySize + "]";
          uniformType += "v";
        }
        uniformMainStr.push(tmpStr);
        self2._uniformList.push(symbol);
        if (!uniformInfo.ignore) {
          if (type === "sampler2D" || type === "samplerCube") {
            self2.textures[symbol] = {
              shaderType,
              type
            };
          }
          if (semantic) {
            self2._addSemanticUniform(symbol, uniformType, semantic);
          } else {
            self2._addMaterialUniform(
              symbol,
              type,
              uniformType,
              defaultValueFunc,
              declaredUniforms[symbol].isArray,
              uniforms
            );
          }
        }
      }
      return uniformMainStr.length > 0 ? "uniform " + type + " " + uniformMainStr.join(",") + ";\n" : "";
    }
    this.uniformTemplates = uniforms;
  },
  _parseAttributes: function() {
    var attributes = {};
    var self2 = this;
    this._vertexCode = this._vertexCode.replace(attributeRegex, _attributeParser);
    function _attributeParser(str, type, content) {
      var declaredAttributes = parseDeclarations(type, content);
      var size = attributeSizeMap[type] || 1;
      var attributeMainStr = [];
      for (var symbol in declaredAttributes) {
        var semantic = declaredAttributes[symbol].semantic;
        attributes[symbol] = {
          // TODO Can only be float
          type: "float",
          size,
          semantic: semantic || null
        };
        if (semantic) {
          if (attributeSemantics.indexOf(semantic) < 0) {
            throw new Error('Unkown semantic "' + semantic + '"');
          } else {
            self2.attributeSemantics[semantic] = {
              symbol,
              type
            };
          }
        }
        attributeMainStr.push(symbol);
      }
      return "attribute " + type + " " + attributeMainStr.join(",") + ";\n";
    }
    this.attributes = attributes;
  },
  _parseDefines: function() {
    var self2 = this;
    var shaderType = "vertex";
    this._vertexCode = this._vertexCode.replace(defineRegex, _defineParser);
    shaderType = "fragment";
    this._fragmentCode = this._fragmentCode.replace(defineRegex, _defineParser);
    function _defineParser(str, symbol, value) {
      var defines = shaderType === "vertex" ? self2.vertexDefines : self2.fragmentDefines;
      if (!defines[symbol]) {
        if (value === "false") {
          defines[symbol] = false;
        } else if (value === "true") {
          defines[symbol] = true;
        } else {
          defines[symbol] = value ? isNaN(parseFloat(value)) ? value.trim() : parseFloat(value) : null;
        }
      }
      return "";
    }
  },
  /**
   * Clone a new shader
   * @return {clay.Shader}
   */
  clone: function() {
    var code = shaderCodeCache[this._shaderID];
    var shader = new Shader(code.vertex, code.fragment);
    return shader;
  }
};
if (Object.defineProperty) {
  Object.defineProperty(Shader.prototype, "shaderID", {
    get: function() {
      return this._shaderID;
    }
  });
  Object.defineProperty(Shader.prototype, "vertex", {
    get: function() {
      return this._vertexCode;
    }
  });
  Object.defineProperty(Shader.prototype, "fragment", {
    get: function() {
      return this._fragmentCode;
    }
  });
  Object.defineProperty(Shader.prototype, "uniforms", {
    get: function() {
      return this._uniformList;
    }
  });
}
var importRegex = /(@import)\s*([0-9a-zA-Z_\-\.]*)/g;
Shader.parseImport = function(shaderStr) {
  shaderStr = shaderStr.replace(importRegex, function(str, importSymbol, importName) {
    var str = Shader.source(importName);
    if (str) {
      return Shader.parseImport(str);
    } else {
      console.error('Shader chunk "' + importName + '" not existed in library');
      return "";
    }
  });
  return shaderStr;
};
var exportRegex = /(@export)\s*([0-9a-zA-Z_\-\.]*)\s*\n([\s\S]*?)@end/g;
Shader["import"] = function(shaderStr) {
  shaderStr.replace(exportRegex, function(str, exportSymbol, exportName, code) {
    var code = code.replace(/(^[\s\t\xa0\u3000]+)|([\u3000\xa0\s\t]+\x24)/g, "");
    if (code) {
      var parts = exportName.split(".");
      var obj = Shader.codes;
      var i = 0;
      var key;
      while (i < parts.length - 1) {
        key = parts[i++];
        if (!obj[key]) {
          obj[key] = {};
        }
        obj = obj[key];
      }
      key = parts[i];
      obj[key] = code;
    }
    return code;
  });
};
Shader.codes = {};
Shader.source = function(name) {
  var parts = name.split(".");
  var obj = Shader.codes;
  var i = 0;
  while (obj && i < parts.length) {
    var key = parts[i++];
    obj = obj[key];
  }
  if (typeof obj !== "string") {
    console.error('Shader "' + name + '" not existed in library');
    return "";
  }
  return obj;
};
const prezGLSL = "@export clay.prez.vertex\nuniform mat4 WVP : WORLDVIEWPROJECTION;\nattribute vec3 pos : POSITION;\nattribute vec2 uv : TEXCOORD_0;\nuniform vec2 uvRepeat : [1.0, 1.0];\nuniform vec2 uvOffset : [0.0, 0.0];\n@import clay.chunk.skinning_header\n@import clay.chunk.instancing_header\nvarying vec2 v_Texcoord;\nvoid main()\n{\n vec4 P = vec4(pos, 1.0);\n#ifdef SKINNING\n @import clay.chunk.skin_matrix\n P = skinMatrixWS * P;\n#endif\n#ifdef INSTANCING\n @import clay.chunk.instancing_matrix\n P = instanceMat * P;\n#endif\n gl_Position = WVP * P;\n v_Texcoord = uv * uvRepeat + uvOffset;\n}\n@end\n@export clay.prez.fragment\nuniform sampler2D alphaMap;\nuniform float alphaCutoff: 0.0;\nvarying vec2 v_Texcoord;\nvoid main()\n{\n if (alphaCutoff > 0.0) {\n if (texture2D(alphaMap, v_Texcoord).a <= alphaCutoff) {\n discard;\n }\n }\n gl_FragColor = vec4(0.0,0.0,0.0,1.0);\n}\n@end";
var mat4$2 = {};
mat4$2.create = function() {
  var out = new GLMAT_ARRAY_TYPE(16);
  out[0] = 1;
  out[1] = 0;
  out[2] = 0;
  out[3] = 0;
  out[4] = 0;
  out[5] = 1;
  out[6] = 0;
  out[7] = 0;
  out[8] = 0;
  out[9] = 0;
  out[10] = 1;
  out[11] = 0;
  out[12] = 0;
  out[13] = 0;
  out[14] = 0;
  out[15] = 1;
  return out;
};
mat4$2.clone = function(a) {
  var out = new GLMAT_ARRAY_TYPE(16);
  out[0] = a[0];
  out[1] = a[1];
  out[2] = a[2];
  out[3] = a[3];
  out[4] = a[4];
  out[5] = a[5];
  out[6] = a[6];
  out[7] = a[7];
  out[8] = a[8];
  out[9] = a[9];
  out[10] = a[10];
  out[11] = a[11];
  out[12] = a[12];
  out[13] = a[13];
  out[14] = a[14];
  out[15] = a[15];
  return out;
};
mat4$2.copy = function(out, a) {
  out[0] = a[0];
  out[1] = a[1];
  out[2] = a[2];
  out[3] = a[3];
  out[4] = a[4];
  out[5] = a[5];
  out[6] = a[6];
  out[7] = a[7];
  out[8] = a[8];
  out[9] = a[9];
  out[10] = a[10];
  out[11] = a[11];
  out[12] = a[12];
  out[13] = a[13];
  out[14] = a[14];
  out[15] = a[15];
  return out;
};
mat4$2.identity = function(out) {
  out[0] = 1;
  out[1] = 0;
  out[2] = 0;
  out[3] = 0;
  out[4] = 0;
  out[5] = 1;
  out[6] = 0;
  out[7] = 0;
  out[8] = 0;
  out[9] = 0;
  out[10] = 1;
  out[11] = 0;
  out[12] = 0;
  out[13] = 0;
  out[14] = 0;
  out[15] = 1;
  return out;
};
mat4$2.transpose = function(out, a) {
  if (out === a) {
    var a01 = a[1], a02 = a[2], a03 = a[3], a12 = a[6], a13 = a[7], a23 = a[11];
    out[1] = a[4];
    out[2] = a[8];
    out[3] = a[12];
    out[4] = a01;
    out[6] = a[9];
    out[7] = a[13];
    out[8] = a02;
    out[9] = a12;
    out[11] = a[14];
    out[12] = a03;
    out[13] = a13;
    out[14] = a23;
  } else {
    out[0] = a[0];
    out[1] = a[4];
    out[2] = a[8];
    out[3] = a[12];
    out[4] = a[1];
    out[5] = a[5];
    out[6] = a[9];
    out[7] = a[13];
    out[8] = a[2];
    out[9] = a[6];
    out[10] = a[10];
    out[11] = a[14];
    out[12] = a[3];
    out[13] = a[7];
    out[14] = a[11];
    out[15] = a[15];
  }
  return out;
};
mat4$2.invert = function(out, a) {
  var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3], a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7], a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11], a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15], b00 = a00 * a11 - a01 * a10, b01 = a00 * a12 - a02 * a10, b02 = a00 * a13 - a03 * a10, b03 = a01 * a12 - a02 * a11, b04 = a01 * a13 - a03 * a11, b05 = a02 * a13 - a03 * a12, b06 = a20 * a31 - a21 * a30, b07 = a20 * a32 - a22 * a30, b08 = a20 * a33 - a23 * a30, b09 = a21 * a32 - a22 * a31, b10 = a21 * a33 - a23 * a31, b11 = a22 * a33 - a23 * a32, det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;
  if (!det) {
    return null;
  }
  det = 1 / det;
  out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;
  out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det;
  out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det;
  out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det;
  out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det;
  out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det;
  out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det;
  out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det;
  out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det;
  out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det;
  out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det;
  out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det;
  out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det;
  out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det;
  out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det;
  out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det;
  return out;
};
mat4$2.adjoint = function(out, a) {
  var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3], a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7], a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11], a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];
  out[0] = a11 * (a22 * a33 - a23 * a32) - a21 * (a12 * a33 - a13 * a32) + a31 * (a12 * a23 - a13 * a22);
  out[1] = -(a01 * (a22 * a33 - a23 * a32) - a21 * (a02 * a33 - a03 * a32) + a31 * (a02 * a23 - a03 * a22));
  out[2] = a01 * (a12 * a33 - a13 * a32) - a11 * (a02 * a33 - a03 * a32) + a31 * (a02 * a13 - a03 * a12);
  out[3] = -(a01 * (a12 * a23 - a13 * a22) - a11 * (a02 * a23 - a03 * a22) + a21 * (a02 * a13 - a03 * a12));
  out[4] = -(a10 * (a22 * a33 - a23 * a32) - a20 * (a12 * a33 - a13 * a32) + a30 * (a12 * a23 - a13 * a22));
  out[5] = a00 * (a22 * a33 - a23 * a32) - a20 * (a02 * a33 - a03 * a32) + a30 * (a02 * a23 - a03 * a22);
  out[6] = -(a00 * (a12 * a33 - a13 * a32) - a10 * (a02 * a33 - a03 * a32) + a30 * (a02 * a13 - a03 * a12));
  out[7] = a00 * (a12 * a23 - a13 * a22) - a10 * (a02 * a23 - a03 * a22) + a20 * (a02 * a13 - a03 * a12);
  out[8] = a10 * (a21 * a33 - a23 * a31) - a20 * (a11 * a33 - a13 * a31) + a30 * (a11 * a23 - a13 * a21);
  out[9] = -(a00 * (a21 * a33 - a23 * a31) - a20 * (a01 * a33 - a03 * a31) + a30 * (a01 * a23 - a03 * a21));
  out[10] = a00 * (a11 * a33 - a13 * a31) - a10 * (a01 * a33 - a03 * a31) + a30 * (a01 * a13 - a03 * a11);
  out[11] = -(a00 * (a11 * a23 - a13 * a21) - a10 * (a01 * a23 - a03 * a21) + a20 * (a01 * a13 - a03 * a11));
  out[12] = -(a10 * (a21 * a32 - a22 * a31) - a20 * (a11 * a32 - a12 * a31) + a30 * (a11 * a22 - a12 * a21));
  out[13] = a00 * (a21 * a32 - a22 * a31) - a20 * (a01 * a32 - a02 * a31) + a30 * (a01 * a22 - a02 * a21);
  out[14] = -(a00 * (a11 * a32 - a12 * a31) - a10 * (a01 * a32 - a02 * a31) + a30 * (a01 * a12 - a02 * a11));
  out[15] = a00 * (a11 * a22 - a12 * a21) - a10 * (a01 * a22 - a02 * a21) + a20 * (a01 * a12 - a02 * a11);
  return out;
};
mat4$2.determinant = function(a) {
  var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3], a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7], a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11], a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15], b00 = a00 * a11 - a01 * a10, b01 = a00 * a12 - a02 * a10, b02 = a00 * a13 - a03 * a10, b03 = a01 * a12 - a02 * a11, b04 = a01 * a13 - a03 * a11, b05 = a02 * a13 - a03 * a12, b06 = a20 * a31 - a21 * a30, b07 = a20 * a32 - a22 * a30, b08 = a20 * a33 - a23 * a30, b09 = a21 * a32 - a22 * a31, b10 = a21 * a33 - a23 * a31, b11 = a22 * a33 - a23 * a32;
  return b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;
};
mat4$2.multiply = function(out, a, b) {
  var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3], a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7], a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11], a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];
  var b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];
  out[0] = b0 * a00 + b1 * a10 + b2 * a20 + b3 * a30;
  out[1] = b0 * a01 + b1 * a11 + b2 * a21 + b3 * a31;
  out[2] = b0 * a02 + b1 * a12 + b2 * a22 + b3 * a32;
  out[3] = b0 * a03 + b1 * a13 + b2 * a23 + b3 * a33;
  b0 = b[4];
  b1 = b[5];
  b2 = b[6];
  b3 = b[7];
  out[4] = b0 * a00 + b1 * a10 + b2 * a20 + b3 * a30;
  out[5] = b0 * a01 + b1 * a11 + b2 * a21 + b3 * a31;
  out[6] = b0 * a02 + b1 * a12 + b2 * a22 + b3 * a32;
  out[7] = b0 * a03 + b1 * a13 + b2 * a23 + b3 * a33;
  b0 = b[8];
  b1 = b[9];
  b2 = b[10];
  b3 = b[11];
  out[8] = b0 * a00 + b1 * a10 + b2 * a20 + b3 * a30;
  out[9] = b0 * a01 + b1 * a11 + b2 * a21 + b3 * a31;
  out[10] = b0 * a02 + b1 * a12 + b2 * a22 + b3 * a32;
  out[11] = b0 * a03 + b1 * a13 + b2 * a23 + b3 * a33;
  b0 = b[12];
  b1 = b[13];
  b2 = b[14];
  b3 = b[15];
  out[12] = b0 * a00 + b1 * a10 + b2 * a20 + b3 * a30;
  out[13] = b0 * a01 + b1 * a11 + b2 * a21 + b3 * a31;
  out[14] = b0 * a02 + b1 * a12 + b2 * a22 + b3 * a32;
  out[15] = b0 * a03 + b1 * a13 + b2 * a23 + b3 * a33;
  return out;
};
mat4$2.multiplyAffine = function(out, a, b) {
  var a00 = a[0], a01 = a[1], a02 = a[2], a10 = a[4], a11 = a[5], a12 = a[6], a20 = a[8], a21 = a[9], a22 = a[10], a30 = a[12], a31 = a[13], a32 = a[14];
  var b0 = b[0], b1 = b[1], b2 = b[2];
  out[0] = b0 * a00 + b1 * a10 + b2 * a20;
  out[1] = b0 * a01 + b1 * a11 + b2 * a21;
  out[2] = b0 * a02 + b1 * a12 + b2 * a22;
  b0 = b[4];
  b1 = b[5];
  b2 = b[6];
  out[4] = b0 * a00 + b1 * a10 + b2 * a20;
  out[5] = b0 * a01 + b1 * a11 + b2 * a21;
  out[6] = b0 * a02 + b1 * a12 + b2 * a22;
  b0 = b[8];
  b1 = b[9];
  b2 = b[10];
  out[8] = b0 * a00 + b1 * a10 + b2 * a20;
  out[9] = b0 * a01 + b1 * a11 + b2 * a21;
  out[10] = b0 * a02 + b1 * a12 + b2 * a22;
  b0 = b[12];
  b1 = b[13];
  b2 = b[14];
  out[12] = b0 * a00 + b1 * a10 + b2 * a20 + a30;
  out[13] = b0 * a01 + b1 * a11 + b2 * a21 + a31;
  out[14] = b0 * a02 + b1 * a12 + b2 * a22 + a32;
  return out;
};
mat4$2.mul = mat4$2.multiply;
mat4$2.mulAffine = mat4$2.multiplyAffine;
mat4$2.translate = function(out, a, v) {
  var x = v[0], y = v[1], z = v[2], a00, a01, a02, a03, a10, a11, a12, a13, a20, a21, a22, a23;
  if (a === out) {
    out[12] = a[0] * x + a[4] * y + a[8] * z + a[12];
    out[13] = a[1] * x + a[5] * y + a[9] * z + a[13];
    out[14] = a[2] * x + a[6] * y + a[10] * z + a[14];
    out[15] = a[3] * x + a[7] * y + a[11] * z + a[15];
  } else {
    a00 = a[0];
    a01 = a[1];
    a02 = a[2];
    a03 = a[3];
    a10 = a[4];
    a11 = a[5];
    a12 = a[6];
    a13 = a[7];
    a20 = a[8];
    a21 = a[9];
    a22 = a[10];
    a23 = a[11];
    out[0] = a00;
    out[1] = a01;
    out[2] = a02;
    out[3] = a03;
    out[4] = a10;
    out[5] = a11;
    out[6] = a12;
    out[7] = a13;
    out[8] = a20;
    out[9] = a21;
    out[10] = a22;
    out[11] = a23;
    out[12] = a00 * x + a10 * y + a20 * z + a[12];
    out[13] = a01 * x + a11 * y + a21 * z + a[13];
    out[14] = a02 * x + a12 * y + a22 * z + a[14];
    out[15] = a03 * x + a13 * y + a23 * z + a[15];
  }
  return out;
};
mat4$2.scale = function(out, a, v) {
  var x = v[0], y = v[1], z = v[2];
  out[0] = a[0] * x;
  out[1] = a[1] * x;
  out[2] = a[2] * x;
  out[3] = a[3] * x;
  out[4] = a[4] * y;
  out[5] = a[5] * y;
  out[6] = a[6] * y;
  out[7] = a[7] * y;
  out[8] = a[8] * z;
  out[9] = a[9] * z;
  out[10] = a[10] * z;
  out[11] = a[11] * z;
  out[12] = a[12];
  out[13] = a[13];
  out[14] = a[14];
  out[15] = a[15];
  return out;
};
mat4$2.rotate = function(out, a, rad2, axis) {
  var x = axis[0], y = axis[1], z = axis[2], len = Math.sqrt(x * x + y * y + z * z), s, c, t, a00, a01, a02, a03, a10, a11, a12, a13, a20, a21, a22, a23, b00, b01, b02, b10, b11, b12, b20, b21, b22;
  if (Math.abs(len) < GLMAT_EPSILON) {
    return null;
  }
  len = 1 / len;
  x *= len;
  y *= len;
  z *= len;
  s = Math.sin(rad2);
  c = Math.cos(rad2);
  t = 1 - c;
  a00 = a[0];
  a01 = a[1];
  a02 = a[2];
  a03 = a[3];
  a10 = a[4];
  a11 = a[5];
  a12 = a[6];
  a13 = a[7];
  a20 = a[8];
  a21 = a[9];
  a22 = a[10];
  a23 = a[11];
  b00 = x * x * t + c;
  b01 = y * x * t + z * s;
  b02 = z * x * t - y * s;
  b10 = x * y * t - z * s;
  b11 = y * y * t + c;
  b12 = z * y * t + x * s;
  b20 = x * z * t + y * s;
  b21 = y * z * t - x * s;
  b22 = z * z * t + c;
  out[0] = a00 * b00 + a10 * b01 + a20 * b02;
  out[1] = a01 * b00 + a11 * b01 + a21 * b02;
  out[2] = a02 * b00 + a12 * b01 + a22 * b02;
  out[3] = a03 * b00 + a13 * b01 + a23 * b02;
  out[4] = a00 * b10 + a10 * b11 + a20 * b12;
  out[5] = a01 * b10 + a11 * b11 + a21 * b12;
  out[6] = a02 * b10 + a12 * b11 + a22 * b12;
  out[7] = a03 * b10 + a13 * b11 + a23 * b12;
  out[8] = a00 * b20 + a10 * b21 + a20 * b22;
  out[9] = a01 * b20 + a11 * b21 + a21 * b22;
  out[10] = a02 * b20 + a12 * b21 + a22 * b22;
  out[11] = a03 * b20 + a13 * b21 + a23 * b22;
  if (a !== out) {
    out[12] = a[12];
    out[13] = a[13];
    out[14] = a[14];
    out[15] = a[15];
  }
  return out;
};
mat4$2.rotateX = function(out, a, rad2) {
  var s = Math.sin(rad2), c = Math.cos(rad2), a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7], a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];
  if (a !== out) {
    out[0] = a[0];
    out[1] = a[1];
    out[2] = a[2];
    out[3] = a[3];
    out[12] = a[12];
    out[13] = a[13];
    out[14] = a[14];
    out[15] = a[15];
  }
  out[4] = a10 * c + a20 * s;
  out[5] = a11 * c + a21 * s;
  out[6] = a12 * c + a22 * s;
  out[7] = a13 * c + a23 * s;
  out[8] = a20 * c - a10 * s;
  out[9] = a21 * c - a11 * s;
  out[10] = a22 * c - a12 * s;
  out[11] = a23 * c - a13 * s;
  return out;
};
mat4$2.rotateY = function(out, a, rad2) {
  var s = Math.sin(rad2), c = Math.cos(rad2), a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3], a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];
  if (a !== out) {
    out[4] = a[4];
    out[5] = a[5];
    out[6] = a[6];
    out[7] = a[7];
    out[12] = a[12];
    out[13] = a[13];
    out[14] = a[14];
    out[15] = a[15];
  }
  out[0] = a00 * c - a20 * s;
  out[1] = a01 * c - a21 * s;
  out[2] = a02 * c - a22 * s;
  out[3] = a03 * c - a23 * s;
  out[8] = a00 * s + a20 * c;
  out[9] = a01 * s + a21 * c;
  out[10] = a02 * s + a22 * c;
  out[11] = a03 * s + a23 * c;
  return out;
};
mat4$2.rotateZ = function(out, a, rad2) {
  var s = Math.sin(rad2), c = Math.cos(rad2), a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3], a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];
  if (a !== out) {
    out[8] = a[8];
    out[9] = a[9];
    out[10] = a[10];
    out[11] = a[11];
    out[12] = a[12];
    out[13] = a[13];
    out[14] = a[14];
    out[15] = a[15];
  }
  out[0] = a00 * c + a10 * s;
  out[1] = a01 * c + a11 * s;
  out[2] = a02 * c + a12 * s;
  out[3] = a03 * c + a13 * s;
  out[4] = a10 * c - a00 * s;
  out[5] = a11 * c - a01 * s;
  out[6] = a12 * c - a02 * s;
  out[7] = a13 * c - a03 * s;
  return out;
};
mat4$2.fromRotationTranslation = function(out, q, v) {
  var x = q[0], y = q[1], z = q[2], w = q[3], x2 = x + x, y2 = y + y, z2 = z + z, xx = x * x2, xy = x * y2, xz = x * z2, yy = y * y2, yz = y * z2, zz = z * z2, wx2 = w * x2, wy = w * y2, wz = w * z2;
  out[0] = 1 - (yy + zz);
  out[1] = xy + wz;
  out[2] = xz - wy;
  out[3] = 0;
  out[4] = xy - wz;
  out[5] = 1 - (xx + zz);
  out[6] = yz + wx2;
  out[7] = 0;
  out[8] = xz + wy;
  out[9] = yz - wx2;
  out[10] = 1 - (xx + yy);
  out[11] = 0;
  out[12] = v[0];
  out[13] = v[1];
  out[14] = v[2];
  out[15] = 1;
  return out;
};
mat4$2.fromQuat = function(out, q) {
  var x = q[0], y = q[1], z = q[2], w = q[3], x2 = x + x, y2 = y + y, z2 = z + z, xx = x * x2, yx = y * x2, yy = y * y2, zx = z * x2, zy = z * y2, zz = z * z2, wx2 = w * x2, wy = w * y2, wz = w * z2;
  out[0] = 1 - yy - zz;
  out[1] = yx + wz;
  out[2] = zx - wy;
  out[3] = 0;
  out[4] = yx - wz;
  out[5] = 1 - xx - zz;
  out[6] = zy + wx2;
  out[7] = 0;
  out[8] = zx + wy;
  out[9] = zy - wx2;
  out[10] = 1 - xx - yy;
  out[11] = 0;
  out[12] = 0;
  out[13] = 0;
  out[14] = 0;
  out[15] = 1;
  return out;
};
mat4$2.frustum = function(out, left, right, bottom, top, near, far) {
  var rl = 1 / (right - left), tb = 1 / (top - bottom), nf = 1 / (near - far);
  out[0] = near * 2 * rl;
  out[1] = 0;
  out[2] = 0;
  out[3] = 0;
  out[4] = 0;
  out[5] = near * 2 * tb;
  out[6] = 0;
  out[7] = 0;
  out[8] = (right + left) * rl;
  out[9] = (top + bottom) * tb;
  out[10] = (far + near) * nf;
  out[11] = -1;
  out[12] = 0;
  out[13] = 0;
  out[14] = far * near * 2 * nf;
  out[15] = 0;
  return out;
};
mat4$2.perspective = function(out, fovy, aspect, near, far) {
  var f = 1 / Math.tan(fovy / 2), nf = 1 / (near - far);
  out[0] = f / aspect;
  out[1] = 0;
  out[2] = 0;
  out[3] = 0;
  out[4] = 0;
  out[5] = f;
  out[6] = 0;
  out[7] = 0;
  out[8] = 0;
  out[9] = 0;
  out[10] = (far + near) * nf;
  out[11] = -1;
  out[12] = 0;
  out[13] = 0;
  out[14] = 2 * far * near * nf;
  out[15] = 0;
  return out;
};
mat4$2.ortho = function(out, left, right, bottom, top, near, far) {
  var lr = 1 / (left - right), bt = 1 / (bottom - top), nf = 1 / (near - far);
  out[0] = -2 * lr;
  out[1] = 0;
  out[2] = 0;
  out[3] = 0;
  out[4] = 0;
  out[5] = -2 * bt;
  out[6] = 0;
  out[7] = 0;
  out[8] = 0;
  out[9] = 0;
  out[10] = 2 * nf;
  out[11] = 0;
  out[12] = (left + right) * lr;
  out[13] = (top + bottom) * bt;
  out[14] = (far + near) * nf;
  out[15] = 1;
  return out;
};
mat4$2.lookAt = function(out, eye, center, up) {
  var x0, x1, x2, y0, y1, y2, z0, z1, z2, len, eyex = eye[0], eyey = eye[1], eyez = eye[2], upx = up[0], upy = up[1], upz = up[2], centerx = center[0], centery = center[1], centerz = center[2];
  if (Math.abs(eyex - centerx) < GLMAT_EPSILON && Math.abs(eyey - centery) < GLMAT_EPSILON && Math.abs(eyez - centerz) < GLMAT_EPSILON) {
    return mat4$2.identity(out);
  }
  z0 = eyex - centerx;
  z1 = eyey - centery;
  z2 = eyez - centerz;
  len = 1 / Math.sqrt(z0 * z0 + z1 * z1 + z2 * z2);
  z0 *= len;
  z1 *= len;
  z2 *= len;
  x0 = upy * z2 - upz * z1;
  x1 = upz * z0 - upx * z2;
  x2 = upx * z1 - upy * z0;
  len = Math.sqrt(x0 * x0 + x1 * x1 + x2 * x2);
  if (!len) {
    x0 = 0;
    x1 = 0;
    x2 = 0;
  } else {
    len = 1 / len;
    x0 *= len;
    x1 *= len;
    x2 *= len;
  }
  y0 = z1 * x2 - z2 * x1;
  y1 = z2 * x0 - z0 * x2;
  y2 = z0 * x1 - z1 * x0;
  len = Math.sqrt(y0 * y0 + y1 * y1 + y2 * y2);
  if (!len) {
    y0 = 0;
    y1 = 0;
    y2 = 0;
  } else {
    len = 1 / len;
    y0 *= len;
    y1 *= len;
    y2 *= len;
  }
  out[0] = x0;
  out[1] = y0;
  out[2] = z0;
  out[3] = 0;
  out[4] = x1;
  out[5] = y1;
  out[6] = z1;
  out[7] = 0;
  out[8] = x2;
  out[9] = y2;
  out[10] = z2;
  out[11] = 0;
  out[12] = -(x0 * eyex + x1 * eyey + x2 * eyez);
  out[13] = -(y0 * eyex + y1 * eyey + y2 * eyez);
  out[14] = -(z0 * eyex + z1 * eyey + z2 * eyez);
  out[15] = 1;
  return out;
};
mat4$2.frob = function(a) {
  return Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2) + Math.pow(a[9], 2) + Math.pow(a[10], 2) + Math.pow(a[11], 2) + Math.pow(a[12], 2) + Math.pow(a[13], 2) + Math.pow(a[14], 2) + Math.pow(a[15], 2));
};
var vec3$f = {};
vec3$f.create = function() {
  var out = new GLMAT_ARRAY_TYPE(3);
  out[0] = 0;
  out[1] = 0;
  out[2] = 0;
  return out;
};
vec3$f.clone = function(a) {
  var out = new GLMAT_ARRAY_TYPE(3);
  out[0] = a[0];
  out[1] = a[1];
  out[2] = a[2];
  return out;
};
vec3$f.fromValues = function(x, y, z) {
  var out = new GLMAT_ARRAY_TYPE(3);
  out[0] = x;
  out[1] = y;
  out[2] = z;
  return out;
};
vec3$f.copy = function(out, a) {
  out[0] = a[0];
  out[1] = a[1];
  out[2] = a[2];
  return out;
};
vec3$f.set = function(out, x, y, z) {
  out[0] = x;
  out[1] = y;
  out[2] = z;
  return out;
};
vec3$f.add = function(out, a, b) {
  out[0] = a[0] + b[0];
  out[1] = a[1] + b[1];
  out[2] = a[2] + b[2];
  return out;
};
vec3$f.subtract = function(out, a, b) {
  out[0] = a[0] - b[0];
  out[1] = a[1] - b[1];
  out[2] = a[2] - b[2];
  return out;
};
vec3$f.sub = vec3$f.subtract;
vec3$f.multiply = function(out, a, b) {
  out[0] = a[0] * b[0];
  out[1] = a[1] * b[1];
  out[2] = a[2] * b[2];
  return out;
};
vec3$f.mul = vec3$f.multiply;
vec3$f.divide = function(out, a, b) {
  out[0] = a[0] / b[0];
  out[1] = a[1] / b[1];
  out[2] = a[2] / b[2];
  return out;
};
vec3$f.div = vec3$f.divide;
vec3$f.min = function(out, a, b) {
  out[0] = Math.min(a[0], b[0]);
  out[1] = Math.min(a[1], b[1]);
  out[2] = Math.min(a[2], b[2]);
  return out;
};
vec3$f.max = function(out, a, b) {
  out[0] = Math.max(a[0], b[0]);
  out[1] = Math.max(a[1], b[1]);
  out[2] = Math.max(a[2], b[2]);
  return out;
};
vec3$f.scale = function(out, a, b) {
  out[0] = a[0] * b;
  out[1] = a[1] * b;
  out[2] = a[2] * b;
  return out;
};
vec3$f.scaleAndAdd = function(out, a, b, scale) {
  out[0] = a[0] + b[0] * scale;
  out[1] = a[1] + b[1] * scale;
  out[2] = a[2] + b[2] * scale;
  return out;
};
vec3$f.distance = function(a, b) {
  var x = b[0] - a[0], y = b[1] - a[1], z = b[2] - a[2];
  return Math.sqrt(x * x + y * y + z * z);
};
vec3$f.dist = vec3$f.distance;
vec3$f.squaredDistance = function(a, b) {
  var x = b[0] - a[0], y = b[1] - a[1], z = b[2] - a[2];
  return x * x + y * y + z * z;
};
vec3$f.sqrDist = vec3$f.squaredDistance;
vec3$f.length = function(a) {
  var x = a[0], y = a[1], z = a[2];
  return Math.sqrt(x * x + y * y + z * z);
};
vec3$f.len = vec3$f.length;
vec3$f.squaredLength = function(a) {
  var x = a[0], y = a[1], z = a[2];
  return x * x + y * y + z * z;
};
vec3$f.sqrLen = vec3$f.squaredLength;
vec3$f.negate = function(out, a) {
  out[0] = -a[0];
  out[1] = -a[1];
  out[2] = -a[2];
  return out;
};
vec3$f.inverse = function(out, a) {
  out[0] = 1 / a[0];
  out[1] = 1 / a[1];
  out[2] = 1 / a[2];
  return out;
};
vec3$f.normalize = function(out, a) {
  var x = a[0], y = a[1], z = a[2];
  var len = x * x + y * y + z * z;
  if (len > 0) {
    len = 1 / Math.sqrt(len);
    out[0] = a[0] * len;
    out[1] = a[1] * len;
    out[2] = a[2] * len;
  }
  return out;
};
vec3$f.dot = function(a, b) {
  return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
};
vec3$f.cross = function(out, a, b) {
  var ax = a[0], ay = a[1], az = a[2], bx = b[0], by = b[1], bz = b[2];
  out[0] = ay * bz - az * by;
  out[1] = az * bx - ax * bz;
  out[2] = ax * by - ay * bx;
  return out;
};
vec3$f.lerp = function(out, a, b, t) {
  var ax = a[0], ay = a[1], az = a[2];
  out[0] = ax + t * (b[0] - ax);
  out[1] = ay + t * (b[1] - ay);
  out[2] = az + t * (b[2] - az);
  return out;
};
vec3$f.random = function(out, scale) {
  scale = scale || 1;
  var r = GLMAT_RANDOM$1() * 2 * Math.PI;
  var z = GLMAT_RANDOM$1() * 2 - 1;
  var zScale = Math.sqrt(1 - z * z) * scale;
  out[0] = Math.cos(r) * zScale;
  out[1] = Math.sin(r) * zScale;
  out[2] = z * scale;
  return out;
};
vec3$f.transformMat4 = function(out, a, m) {
  var x = a[0], y = a[1], z = a[2], w = m[3] * x + m[7] * y + m[11] * z + m[15];
  w = w || 1;
  out[0] = (m[0] * x + m[4] * y + m[8] * z + m[12]) / w;
  out[1] = (m[1] * x + m[5] * y + m[9] * z + m[13]) / w;
  out[2] = (m[2] * x + m[6] * y + m[10] * z + m[14]) / w;
  return out;
};
vec3$f.transformMat3 = function(out, a, m) {
  var x = a[0], y = a[1], z = a[2];
  out[0] = x * m[0] + y * m[3] + z * m[6];
  out[1] = x * m[1] + y * m[4] + z * m[7];
  out[2] = x * m[2] + y * m[5] + z * m[8];
  return out;
};
vec3$f.transformQuat = function(out, a, q) {
  var x = a[0], y = a[1], z = a[2], qx = q[0], qy = q[1], qz = q[2], qw = q[3], ix = qw * x + qy * z - qz * y, iy = qw * y + qz * x - qx * z, iz = qw * z + qx * y - qy * x, iw = -qx * x - qy * y - qz * z;
  out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;
  out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;
  out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;
  return out;
};
vec3$f.rotateX = function(out, a, b, c) {
  var p = [], r = [];
  p[0] = a[0] - b[0];
  p[1] = a[1] - b[1];
  p[2] = a[2] - b[2];
  r[0] = p[0];
  r[1] = p[1] * Math.cos(c) - p[2] * Math.sin(c);
  r[2] = p[1] * Math.sin(c) + p[2] * Math.cos(c);
  out[0] = r[0] + b[0];
  out[1] = r[1] + b[1];
  out[2] = r[2] + b[2];
  return out;
};
vec3$f.rotateY = function(out, a, b, c) {
  var p = [], r = [];
  p[0] = a[0] - b[0];
  p[1] = a[1] - b[1];
  p[2] = a[2] - b[2];
  r[0] = p[2] * Math.sin(c) + p[0] * Math.cos(c);
  r[1] = p[1];
  r[2] = p[2] * Math.cos(c) - p[0] * Math.sin(c);
  out[0] = r[0] + b[0];
  out[1] = r[1] + b[1];
  out[2] = r[2] + b[2];
  return out;
};
vec3$f.rotateZ = function(out, a, b, c) {
  var p = [], r = [];
  p[0] = a[0] - b[0];
  p[1] = a[1] - b[1];
  p[2] = a[2] - b[2];
  r[0] = p[0] * Math.cos(c) - p[1] * Math.sin(c);
  r[1] = p[0] * Math.sin(c) + p[1] * Math.cos(c);
  r[2] = p[2];
  out[0] = r[0] + b[0];
  out[1] = r[1] + b[1];
  out[2] = r[2] + b[2];
  return out;
};
vec3$f.forEach = function() {
  var vec = vec3$f.create();
  return function(a, stride, offset, count, fn, arg) {
    var i, l;
    if (!stride) {
      stride = 3;
    }
    if (!offset) {
      offset = 0;
    }
    if (count) {
      l = Math.min(count * stride + offset, a.length);
    } else {
      l = a.length;
    }
    for (i = offset; i < l; i += stride) {
      vec[0] = a[i];
      vec[1] = a[i + 1];
      vec[2] = a[i + 2];
      fn(vec, vec, arg);
      a[i] = vec[0];
      a[i + 1] = vec[1];
      a[i + 2] = vec[2];
    }
    return a;
  };
}();
vec3$f.angle = function(a, b) {
  var tempA = vec3$f.fromValues(a[0], a[1], a[2]);
  var tempB = vec3$f.fromValues(b[0], b[1], b[2]);
  vec3$f.normalize(tempA, tempA);
  vec3$f.normalize(tempB, tempB);
  var cosine = vec3$f.dot(tempA, tempB);
  if (cosine > 1) {
    return 0;
  } else {
    return Math.acos(cosine);
  }
};
Shader["import"](prezGLSL);
var mat4Create = mat4$2.create;
var errorShader = {};
function defaultGetMaterial(renderable) {
  return renderable.material;
}
function defaultGetUniform(renderable, material, symbol) {
  return material.uniforms[symbol].value;
}
function defaultIsMaterialChanged(renderabled, prevRenderable, material, prevMaterial) {
  return material !== prevMaterial;
}
function defaultIfRender(renderable) {
  return true;
}
function noop$1() {
}
var attributeBufferTypeMap = {
  float: glenum.FLOAT,
  byte: glenum.BYTE,
  ubyte: glenum.UNSIGNED_BYTE,
  short: glenum.SHORT,
  ushort: glenum.UNSIGNED_SHORT
};
function VertexArrayObject(availableAttributes, availableAttributeSymbols, indicesBuffer) {
  this.availableAttributes = availableAttributes;
  this.availableAttributeSymbols = availableAttributeSymbols;
  this.indicesBuffer = indicesBuffer;
  this.vao = null;
}
function PlaceHolderTexture(renderer) {
  var blankCanvas;
  var webglTexture;
  this.bind = function(renderer2) {
    if (!blankCanvas) {
      blankCanvas = vendor.createCanvas();
      blankCanvas.width = blankCanvas.height = 1;
      blankCanvas.getContext("2d");
    }
    var gl = renderer2.gl;
    var firstBind = !webglTexture;
    if (firstBind) {
      webglTexture = gl.createTexture();
    }
    gl.bindTexture(gl.TEXTURE_2D, webglTexture);
    if (firstBind) {
      gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, blankCanvas);
    }
  };
  this.unbind = function(renderer2) {
    renderer2.gl.bindTexture(renderer2.gl.TEXTURE_2D, null);
  };
  this.isRenderable = function() {
    return true;
  };
}
var Renderer = Base.extend(
  function() {
    return (
      /** @lends clay.Renderer# */
      {
        /**
         * @type {HTMLCanvasElement}
         * @readonly
         */
        canvas: null,
        /**
         * Canvas width, set by resize method
         * @type {number}
         * @private
         */
        _width: 100,
        /**
         * Canvas width, set by resize method
         * @type {number}
         * @private
         */
        _height: 100,
        /**
         * Device pixel ratio, set by setDevicePixelRatio method
         * Specially for high defination display
         * @see http://www.khronos.org/webgl/wiki/HandlingHighDPI
         * @type {number}
         * @private
         */
        devicePixelRatio: typeof window !== "undefined" && window.devicePixelRatio || 1,
        /**
         * Clear color
         * @type {number[]}
         */
        clearColor: [0, 0, 0, 0],
        /**
         * Default:
         *     _gl.COLOR_BUFFER_BIT | _gl.DEPTH_BUFFER_BIT | _gl.STENCIL_BUFFER_BIT
         * @type {number}
         */
        clearBit: 17664,
        // Settings when getting context
        // http://www.khronos.org/registry/webgl/specs/latest/#2.4
        /**
         * If enable alpha, default true
         * @type {boolean}
         */
        alpha: true,
        /**
         * If enable depth buffer, default true
         * @type {boolean}
         */
        depth: true,
        /**
         * If enable stencil buffer, default false
         * @type {boolean}
         */
        stencil: false,
        /**
         * If enable antialias, default true
         * @type {boolean}
         */
        antialias: true,
        /**
         * If enable premultiplied alpha, default true
         * @type {boolean}
         */
        premultipliedAlpha: true,
        /**
         * If preserve drawing buffer, default false
         * @type {boolean}
         */
        preserveDrawingBuffer: false,
        /**
         * If throw context error, usually turned on in debug mode
         * @type {boolean}
         */
        throwError: true,
        /**
         * WebGL Context created from given canvas
         * @type {WebGLRenderingContext}
         */
        gl: null,
        /**
         * Renderer viewport, read-only, can be set by setViewport method
         * @type {Object}
         */
        viewport: {},
        /**
         * Max joint number
         * @type {number}
         */
        maxJointNumber: 20,
        // Set by FrameBuffer#bind
        __currentFrameBuffer: null,
        _viewportStack: [],
        _clearStack: [],
        _sceneRendering: null
      }
    );
  },
  function() {
    if (!this.canvas) {
      this.canvas = vendor.createCanvas();
    }
    var canvas = this.canvas;
    try {
      var opts = {
        alpha: this.alpha,
        depth: this.depth,
        stencil: this.stencil,
        antialias: this.antialias,
        premultipliedAlpha: this.premultipliedAlpha,
        preserveDrawingBuffer: this.preserveDrawingBuffer
      };
      this.gl = canvas.getContext("webgl", opts) || canvas.getContext("experimental-webgl", opts);
      if (!this.gl) {
        throw new Error();
      }
      this._glinfo = new GLInfo(this.gl);
      if (this.gl.targetRenderer) {
        console.error("Already created a renderer");
      }
      this.gl.targetRenderer = this;
      this.resize();
    } catch (e2) {
      throw "Error creating WebGL Context " + e2;
    }
    this._programMgr = new ProgramManager(this);
    this._placeholderTexture = new PlaceHolderTexture();
  },
  /** @lends clay.Renderer.prototype. **/
  {
    /**
     * Resize the canvas
     * @param {number} width
     * @param {number} height
     */
    resize: function(width, height) {
      var canvas = this.canvas;
      var dpr = this.devicePixelRatio;
      if (width != null) {
        if (canvas.style) {
          canvas.style.width = width + "px";
          canvas.style.height = height + "px";
        }
        canvas.width = width * dpr;
        canvas.height = height * dpr;
        this._width = width;
        this._height = height;
      } else {
        this._width = canvas.width / dpr;
        this._height = canvas.height / dpr;
      }
      this.setViewport(0, 0, this._width, this._height);
    },
    /**
     * Get renderer width
     * @return {number}
     */
    getWidth: function() {
      return this._width;
    },
    /**
     * Get renderer height
     * @return {number}
     */
    getHeight: function() {
      return this._height;
    },
    /**
     * Get viewport aspect,
     * @return {number}
     */
    getViewportAspect: function() {
      var viewport = this.viewport;
      return viewport.width / viewport.height;
    },
    /**
     * Set devicePixelRatio
     * @param {number} devicePixelRatio
     */
    setDevicePixelRatio: function(devicePixelRatio) {
      this.devicePixelRatio = devicePixelRatio;
      this.resize(this._width, this._height);
    },
    /**
     * Get devicePixelRatio
     * @param {number} devicePixelRatio
     */
    getDevicePixelRatio: function() {
      return this.devicePixelRatio;
    },
    /**
     * Get WebGL extension
     * @param {string} name
     * @return {object}
     */
    getGLExtension: function(name) {
      return this._glinfo.getExtension(name);
    },
    /**
     * Get WebGL parameter
     * @param {string} name
     * @return {*}
     */
    getGLParameter: function(name) {
      return this._glinfo.getParameter(name);
    },
    /**
     * Set rendering viewport
     * @param {number|Object} x
     * @param {number} [y]
     * @param {number} [width]
     * @param {number} [height]
     * @param {number} [devicePixelRatio]
     *        Defaultly use the renderere devicePixelRatio
     *        It needs to be 1 when setViewport is called by frameBuffer
     *
     * @example
     *  setViewport(0,0,width,height,1)
     *  setViewport({
     *      x: 0,
     *      y: 0,
     *      width: width,
     *      height: height,
     *      devicePixelRatio: 1
     *  })
     */
    setViewport: function(x, y, width, height, dpr) {
      if (typeof x === "object") {
        var obj = x;
        x = obj.x;
        y = obj.y;
        width = obj.width;
        height = obj.height;
        dpr = obj.devicePixelRatio;
      }
      dpr = dpr || this.devicePixelRatio;
      this.gl.viewport(
        x * dpr,
        y * dpr,
        width * dpr,
        height * dpr
      );
      this.viewport = {
        x,
        y,
        width,
        height,
        devicePixelRatio: dpr
      };
    },
    /**
     * Push current viewport into a stack
     */
    saveViewport: function() {
      this._viewportStack.push(this.viewport);
    },
    /**
     * Pop viewport from stack, restore in the renderer
     */
    restoreViewport: function() {
      if (this._viewportStack.length > 0) {
        this.setViewport(this._viewportStack.pop());
      }
    },
    /**
     * Push current clear into a stack
     */
    saveClear: function() {
      this._clearStack.push({
        clearBit: this.clearBit,
        clearColor: this.clearColor
      });
    },
    /**
     * Pop clear from stack, restore in the renderer
     */
    restoreClear: function() {
      if (this._clearStack.length > 0) {
        var opt = this._clearStack.pop();
        this.clearColor = opt.clearColor;
        this.clearBit = opt.clearBit;
      }
    },
    bindSceneRendering: function(scene) {
      this._sceneRendering = scene;
    },
    /**
     * Render the scene in camera to the screen or binded offline framebuffer
     * @param  {clay.Scene}       scene
     * @param  {clay.Camera}      camera
     * @param  {boolean}     [notUpdateScene] If not call the scene.update methods in the rendering, default true
     * @param  {boolean}     [preZ]           If use preZ optimization, default false
     * @return {IRenderInfo}
     */
    render: function(scene, camera2, notUpdateScene, preZ) {
      var _gl = this.gl;
      var clearColor = this.clearColor;
      if (this.clearBit) {
        _gl.colorMask(true, true, true, true);
        _gl.depthMask(true);
        var viewport = this.viewport;
        var needsScissor = false;
        var viewportDpr = viewport.devicePixelRatio;
        if (viewport.width !== this._width || viewport.height !== this._height || viewportDpr && viewportDpr !== this.devicePixelRatio || viewport.x || viewport.y) {
          needsScissor = true;
          _gl.enable(_gl.SCISSOR_TEST);
          _gl.scissor(viewport.x * viewportDpr, viewport.y * viewportDpr, viewport.width * viewportDpr, viewport.height * viewportDpr);
        }
        _gl.clearColor(clearColor[0], clearColor[1], clearColor[2], clearColor[3]);
        _gl.clear(this.clearBit);
        if (needsScissor) {
          _gl.disable(_gl.SCISSOR_TEST);
        }
      }
      if (!notUpdateScene) {
        scene.update(false);
      }
      scene.updateLights();
      camera2 = camera2 || scene.getMainCamera();
      if (!camera2) {
        console.error("Can't find camera in the scene.");
        return;
      }
      camera2.update();
      var renderList = scene.updateRenderList(camera2, true);
      this._sceneRendering = scene;
      var opaqueList = renderList.opaque;
      var transparentList = renderList.transparent;
      var sceneMaterial = scene.material;
      scene.trigger("beforerender", this, scene, camera2, renderList);
      if (preZ) {
        this.renderPreZ(opaqueList, scene, camera2);
        _gl.depthFunc(_gl.LEQUAL);
      } else {
        _gl.depthFunc(_gl.LESS);
      }
      var worldViewMat = mat4Create();
      var posViewSpace = vec3$f.create();
      for (var i = 0; i < transparentList.length; i++) {
        var renderable = transparentList[i];
        mat4$2.multiplyAffine(worldViewMat, camera2.viewMatrix.array, renderable.worldTransform.array);
        vec3$f.transformMat4(posViewSpace, renderable.position.array, worldViewMat);
        renderable.__depth = posViewSpace[2];
      }
      this.renderPass(opaqueList, camera2, {
        getMaterial: function(renderable2) {
          return sceneMaterial || renderable2.material;
        },
        sortCompare: this.opaqueSortCompare
      });
      this.renderPass(transparentList, camera2, {
        getMaterial: function(renderable2) {
          return sceneMaterial || renderable2.material;
        },
        sortCompare: this.transparentSortCompare
      });
      scene.trigger("afterrender", this, scene, camera2, renderList);
      this._sceneRendering = null;
    },
    getProgram: function(renderable, renderMaterial, scene) {
      renderMaterial = renderMaterial || renderable.material;
      return this._programMgr.getProgram(renderable, renderMaterial, scene);
    },
    validateProgram: function(program) {
      if (program.__error) {
        var errorMsg = program.__error;
        if (errorShader[program.__uid__]) {
          return;
        }
        errorShader[program.__uid__] = true;
        if (this.throwError) {
          throw new Error(errorMsg);
        } else {
          this.trigger("error", errorMsg);
        }
      }
    },
    updatePrograms: function(list, scene, passConfig) {
      var getMaterial = passConfig && passConfig.getMaterial || defaultGetMaterial;
      scene = scene || null;
      for (var i = 0; i < list.length; i++) {
        var renderable = list[i];
        var renderMaterial = getMaterial.call(this, renderable);
        if (i > 0) {
          var prevRenderable = list[i - 1];
          var prevJointsLen = prevRenderable.joints ? prevRenderable.joints.length : 0;
          var jointsLen = renderable.joints ? renderable.joints.length : 0;
          if (jointsLen === prevJointsLen && renderable.material === prevRenderable.material && renderable.lightGroup === prevRenderable.lightGroup) {
            renderable.__program = prevRenderable.__program;
            continue;
          }
        }
        var program = this._programMgr.getProgram(renderable, renderMaterial, scene);
        this.validateProgram(program);
        renderable.__program = program;
      }
    },
    /**
     * Render a single renderable list in camera in sequence
     * @param {clay.Renderable[]} list List of all renderables.
     * @param {clay.Camera} [camera] Camera provide view matrix and porjection matrix. It can be null.
     * @param {Object} [passConfig]
     * @param {Function} [passConfig.getMaterial] Get renderable material.
     * @param {Function} [passConfig.getUniform] Get material uniform value.
     * @param {Function} [passConfig.isMaterialChanged] If material changed.
     * @param {Function} [passConfig.beforeRender] Before render each renderable.
     * @param {Function} [passConfig.afterRender] After render each renderable
     * @param {Function} [passConfig.ifRender] If render the renderable.
     * @param {Function} [passConfig.sortCompare] Sort compare function.
     * @return {IRenderInfo}
     */
    renderPass: function(list, camera2, passConfig) {
      this.trigger("beforerenderpass", this, list, camera2, passConfig);
      passConfig = passConfig || {};
      passConfig.getMaterial = passConfig.getMaterial || defaultGetMaterial;
      passConfig.getUniform = passConfig.getUniform || defaultGetUniform;
      passConfig.isMaterialChanged = passConfig.isMaterialChanged || defaultIsMaterialChanged;
      passConfig.beforeRender = passConfig.beforeRender || noop$1;
      passConfig.afterRender = passConfig.afterRender || noop$1;
      var ifRenderObject = passConfig.ifRender || defaultIfRender;
      this.updatePrograms(list, this._sceneRendering, passConfig);
      if (passConfig.sortCompare) {
        list.sort(passConfig.sortCompare);
      }
      var viewport = this.viewport;
      var vDpr = viewport.devicePixelRatio;
      var viewportUniform = [
        viewport.x * vDpr,
        viewport.y * vDpr,
        viewport.width * vDpr,
        viewport.height * vDpr
      ];
      var windowDpr = this.devicePixelRatio;
      var windowSizeUniform = this.__currentFrameBuffer ? [this.__currentFrameBuffer.getTextureWidth(), this.__currentFrameBuffer.getTextureHeight()] : [this._width * windowDpr, this._height * windowDpr];
      var viewportSizeUniform = [
        viewportUniform[2],
        viewportUniform[3]
      ];
      var time = Date.now();
      if (camera2) {
        mat4$2.copy(matrices.VIEW, camera2.viewMatrix.array);
        mat4$2.copy(matrices.PROJECTION, camera2.projectionMatrix.array);
        mat4$2.copy(matrices.VIEWINVERSE, camera2.worldTransform.array);
      } else {
        mat4$2.identity(matrices.VIEW);
        mat4$2.identity(matrices.PROJECTION);
        mat4$2.identity(matrices.VIEWINVERSE);
      }
      mat4$2.multiply(matrices.VIEWPROJECTION, matrices.PROJECTION, matrices.VIEW);
      mat4$2.invert(matrices.PROJECTIONINVERSE, matrices.PROJECTION);
      mat4$2.invert(matrices.VIEWPROJECTIONINVERSE, matrices.VIEWPROJECTION);
      var _gl = this.gl;
      var scene = this._sceneRendering;
      var prevMaterial;
      var prevProgram;
      var prevRenderable;
      var depthTest, depthMask;
      var culling, cullFace, frontFace;
      var transparent;
      var drawID;
      var currentVAO;
      var materialTakesTextureSlot;
      var vaoExt = null;
      for (var i = 0; i < list.length; i++) {
        var renderable = list[i];
        var isSceneNode = renderable.worldTransform != null;
        var worldM;
        if (!ifRenderObject(renderable)) {
          continue;
        }
        if (isSceneNode) {
          worldM = renderable.isSkinnedMesh && renderable.isSkinnedMesh() ? renderable.offsetMatrix ? renderable.offsetMatrix.array : matrices.IDENTITY : renderable.worldTransform.array;
        }
        var geometry = renderable.geometry;
        var material = passConfig.getMaterial.call(this, renderable);
        var program = renderable.__program;
        var shader = material.shader;
        var currentDrawID = geometry.__uid__ + "-" + program.__uid__;
        var drawIDChanged = currentDrawID !== drawID;
        drawID = currentDrawID;
        if (isSceneNode) {
          mat4$2.copy(matrices.WORLD, worldM);
          mat4$2.multiply(matrices.WORLDVIEWPROJECTION, matrices.VIEWPROJECTION, worldM);
          mat4$2.multiplyAffine(matrices.WORLDVIEW, matrices.VIEW, worldM);
          if (shader.matrixSemantics.WORLDINVERSE || shader.matrixSemantics.WORLDINVERSETRANSPOSE) {
            mat4$2.invert(matrices.WORLDINVERSE, worldM);
          }
          if (shader.matrixSemantics.WORLDVIEWINVERSE || shader.matrixSemantics.WORLDVIEWINVERSETRANSPOSE) {
            mat4$2.invert(matrices.WORLDVIEWINVERSE, matrices.WORLDVIEW);
          }
          if (shader.matrixSemantics.WORLDVIEWPROJECTIONINVERSE || shader.matrixSemantics.WORLDVIEWPROJECTIONINVERSETRANSPOSE) {
            mat4$2.invert(matrices.WORLDVIEWPROJECTIONINVERSE, matrices.WORLDVIEWPROJECTION);
          }
        }
        renderable.beforeRender && renderable.beforeRender(this);
        passConfig.beforeRender.call(this, renderable, material, prevMaterial);
        var programChanged = program !== prevProgram;
        if (programChanged) {
          program.bind(this);
          program.setUniformOfSemantic(_gl, "VIEWPORT", viewportUniform);
          program.setUniformOfSemantic(_gl, "WINDOW_SIZE", windowSizeUniform);
          if (camera2) {
            program.setUniformOfSemantic(_gl, "NEAR", camera2.near);
            program.setUniformOfSemantic(_gl, "FAR", camera2.far);
          }
          program.setUniformOfSemantic(_gl, "DEVICEPIXELRATIO", vDpr);
          program.setUniformOfSemantic(_gl, "TIME", time);
          program.setUniformOfSemantic(_gl, "VIEWPORT_SIZE", viewportSizeUniform);
          if (scene) {
            scene.setLightUniforms(program, renderable.lightGroup, this);
          }
        } else {
          program = prevProgram;
        }
        if (programChanged || passConfig.isMaterialChanged(
          renderable,
          prevRenderable,
          material,
          prevMaterial
        )) {
          if (material.depthTest !== depthTest) {
            material.depthTest ? _gl.enable(_gl.DEPTH_TEST) : _gl.disable(_gl.DEPTH_TEST);
            depthTest = material.depthTest;
          }
          if (material.depthMask !== depthMask) {
            _gl.depthMask(material.depthMask);
            depthMask = material.depthMask;
          }
          if (material.transparent !== transparent) {
            material.transparent ? _gl.enable(_gl.BLEND) : _gl.disable(_gl.BLEND);
            transparent = material.transparent;
          }
          if (material.transparent) {
            if (material.blend) {
              material.blend(_gl);
            } else {
              _gl.blendEquationSeparate(_gl.FUNC_ADD, _gl.FUNC_ADD);
              _gl.blendFuncSeparate(_gl.SRC_ALPHA, _gl.ONE_MINUS_SRC_ALPHA, _gl.ONE, _gl.ONE_MINUS_SRC_ALPHA);
            }
          }
          materialTakesTextureSlot = this._bindMaterial(
            renderable,
            material,
            program,
            prevRenderable || null,
            prevMaterial || null,
            prevProgram || null,
            passConfig.getUniform
          );
          prevMaterial = material;
        }
        var matrixSemanticKeys = shader.matrixSemanticKeys;
        if (isSceneNode) {
          for (var k = 0; k < matrixSemanticKeys.length; k++) {
            var semantic = matrixSemanticKeys[k];
            var semanticInfo = shader.matrixSemantics[semantic];
            var matrix = matrices[semantic];
            if (semanticInfo.isTranspose) {
              var matrixNoTranspose = matrices[semanticInfo.semanticNoTranspose];
              mat4$2.transpose(matrix, matrixNoTranspose);
            }
            program.setUniform(_gl, semanticInfo.type, semanticInfo.symbol, matrix);
          }
        }
        if (renderable.cullFace !== cullFace) {
          cullFace = renderable.cullFace;
          _gl.cullFace(cullFace);
        }
        if (renderable.frontFace !== frontFace) {
          frontFace = renderable.frontFace;
          _gl.frontFace(frontFace);
        }
        if (renderable.culling !== culling) {
          culling = renderable.culling;
          culling ? _gl.enable(_gl.CULL_FACE) : _gl.disable(_gl.CULL_FACE);
        }
        this._updateSkeleton(renderable, program, materialTakesTextureSlot);
        if (drawIDChanged) {
          currentVAO = this._bindVAO(vaoExt, shader, geometry, program);
        }
        this._renderObject(renderable, currentVAO, program);
        passConfig.afterRender(this, renderable);
        renderable.afterRender && renderable.afterRender(this);
        prevProgram = program;
        prevRenderable = renderable;
      }
      this.trigger("afterrenderpass", this, list, camera2, passConfig);
    },
    getMaxJointNumber: function() {
      return this.maxJointNumber;
    },
    _updateSkeleton: function(object, program, slot) {
      var _gl = this.gl;
      var skeleton = object.skeleton;
      if (skeleton) {
        skeleton.update();
        if (object.joints.length > this.getMaxJointNumber()) {
          var skinMatricesTexture = skeleton.getSubSkinMatricesTexture(object.__uid__, object.joints);
          program.useTextureSlot(this, skinMatricesTexture, slot);
          program.setUniform(_gl, "1i", "skinMatricesTexture", slot);
          program.setUniform(_gl, "1f", "skinMatricesTextureSize", skinMatricesTexture.width);
        } else {
          var skinMatricesArray = skeleton.getSubSkinMatrices(object.__uid__, object.joints);
          program.setUniformOfSemantic(_gl, "SKIN_MATRIX", skinMatricesArray);
        }
      }
    },
    _renderObject: function(renderable, vao, program) {
      var _gl = this.gl;
      var geometry = renderable.geometry;
      var glDrawMode = renderable.mode;
      if (glDrawMode == null) {
        glDrawMode = 4;
      }
      var ext = null;
      var isInstanced = renderable.isInstancedMesh && renderable.isInstancedMesh();
      if (isInstanced) {
        ext = this.getGLExtension("ANGLE_instanced_arrays");
        if (!ext) {
          console.warn("Device not support ANGLE_instanced_arrays extension");
          return;
        }
      }
      var instancedAttrLocations;
      if (isInstanced) {
        instancedAttrLocations = this._bindInstancedAttributes(renderable, program, ext);
      }
      if (vao.indicesBuffer) {
        var uintExt = this.getGLExtension("OES_element_index_uint");
        var useUintExt = uintExt && geometry.indices instanceof Uint32Array;
        var indicesType = useUintExt ? _gl.UNSIGNED_INT : _gl.UNSIGNED_SHORT;
        if (isInstanced) {
          ext.drawElementsInstancedANGLE(
            glDrawMode,
            vao.indicesBuffer.count,
            indicesType,
            0,
            renderable.getInstanceCount()
          );
        } else {
          _gl.drawElements(glDrawMode, vao.indicesBuffer.count, indicesType, 0);
        }
      } else {
        if (isInstanced) {
          ext.drawArraysInstancedANGLE(glDrawMode, 0, geometry.vertexCount, renderable.getInstanceCount());
        } else {
          _gl.drawArrays(glDrawMode, 0, geometry.vertexCount);
        }
      }
      if (isInstanced) {
        for (var i = 0; i < instancedAttrLocations.length; i++) {
          _gl.disableVertexAttribArray(instancedAttrLocations[i]);
        }
      }
    },
    _bindInstancedAttributes: function(renderable, program, ext) {
      var _gl = this.gl;
      var instancedBuffers = renderable.getInstancedAttributesBuffers(this);
      var locations = [];
      for (var i = 0; i < instancedBuffers.length; i++) {
        var bufferObj = instancedBuffers[i];
        var location = program.getAttribLocation(_gl, bufferObj.symbol);
        if (location < 0) {
          continue;
        }
        var glType = attributeBufferTypeMap[bufferObj.type] || _gl.FLOAT;
        _gl.enableVertexAttribArray(location);
        _gl.bindBuffer(_gl.ARRAY_BUFFER, bufferObj.buffer);
        _gl.vertexAttribPointer(location, bufferObj.size, glType, false, 0, 0);
        ext.vertexAttribDivisorANGLE(location, bufferObj.divisor);
        locations.push(location);
      }
      return locations;
    },
    _bindMaterial: function(renderable, material, program, prevRenderable, prevMaterial, prevProgram, getUniformValue) {
      var _gl = this.gl;
      var sameProgram = prevProgram === program;
      var currentTextureSlot = program.currentTextureSlot();
      var enabledUniforms = material.getEnabledUniforms();
      var textureUniforms = material.getTextureUniforms();
      var placeholderTexture = this._placeholderTexture;
      for (var u = 0; u < textureUniforms.length; u++) {
        var symbol = textureUniforms[u];
        var uniformValue = getUniformValue(renderable, material, symbol);
        var uniformType = material.uniforms[symbol].type;
        if (uniformType === "t" && uniformValue) {
          uniformValue.__slot = -1;
        } else if (uniformType === "tv") {
          for (var i = 0; i < uniformValue.length; i++) {
            if (uniformValue[i]) {
              uniformValue[i].__slot = -1;
            }
          }
        }
      }
      placeholderTexture.__slot = -1;
      for (var u = 0; u < enabledUniforms.length; u++) {
        var symbol = enabledUniforms[u];
        var uniform = material.uniforms[symbol];
        var uniformValue = getUniformValue(renderable, material, symbol);
        var uniformType = uniform.type;
        var isTexture = uniformType === "t";
        if (isTexture) {
          if (!uniformValue || !uniformValue.isRenderable()) {
            uniformValue = placeholderTexture;
          }
        }
        if (prevMaterial && sameProgram) {
          var prevUniformValue = getUniformValue(prevRenderable, prevMaterial, symbol);
          if (isTexture) {
            if (!prevUniformValue || !prevUniformValue.isRenderable()) {
              prevUniformValue = placeholderTexture;
            }
          }
          if (prevUniformValue === uniformValue) {
            if (isTexture) {
              program.takeCurrentTextureSlot(this, null);
            } else if (uniformType === "tv" && uniformValue) {
              for (var i = 0; i < uniformValue.length; i++) {
                program.takeCurrentTextureSlot(this, null);
              }
            }
            continue;
          }
        }
        if (uniformValue == null) {
          continue;
        } else if (isTexture) {
          if (uniformValue.__slot < 0) {
            var slot = program.currentTextureSlot();
            var res = program.setUniform(_gl, "1i", symbol, slot);
            if (res) {
              program.takeCurrentTextureSlot(this, uniformValue);
              uniformValue.__slot = slot;
            }
          } else {
            program.setUniform(_gl, "1i", symbol, uniformValue.__slot);
          }
        } else if (Array.isArray(uniformValue)) {
          if (uniformValue.length === 0) {
            continue;
          }
          if (uniformType === "tv") {
            if (!program.hasUniform(symbol)) {
              continue;
            }
            var arr = [];
            for (var i = 0; i < uniformValue.length; i++) {
              var texture = uniformValue[i];
              if (texture.__slot < 0) {
                var slot = program.currentTextureSlot();
                arr.push(slot);
                program.takeCurrentTextureSlot(this, texture);
                texture.__slot = slot;
              } else {
                arr.push(texture.__slot);
              }
            }
            program.setUniform(_gl, "1iv", symbol, arr);
          } else {
            program.setUniform(_gl, uniform.type, symbol, uniformValue);
          }
        } else {
          program.setUniform(_gl, uniform.type, symbol, uniformValue);
        }
      }
      var newSlot = program.currentTextureSlot();
      program.resetTextureSlot(currentTextureSlot);
      return newSlot;
    },
    _bindVAO: function(vaoExt, shader, geometry, program) {
      var isStatic = !geometry.dynamic;
      var _gl = this.gl;
      var vaoId = this.__uid__ + "-" + program.__uid__;
      var vao = geometry.__vaoCache[vaoId];
      if (!vao) {
        var chunks = geometry.getBufferChunks(this);
        if (!chunks || !chunks.length) {
          return;
        }
        var chunk = chunks[0];
        var attributeBuffers = chunk.attributeBuffers;
        var indicesBuffer = chunk.indicesBuffer;
        var availableAttributes = [];
        var availableAttributeSymbols = [];
        for (var a = 0; a < attributeBuffers.length; a++) {
          var attributeBufferInfo = attributeBuffers[a];
          var name = attributeBufferInfo.name;
          var semantic = attributeBufferInfo.semantic;
          var symbol;
          if (semantic) {
            var semanticInfo = shader.attributeSemantics[semantic];
            symbol = semanticInfo && semanticInfo.symbol;
          } else {
            symbol = name;
          }
          if (symbol && program.attributes[symbol]) {
            availableAttributes.push(attributeBufferInfo);
            availableAttributeSymbols.push(symbol);
          }
        }
        vao = new VertexArrayObject(
          availableAttributes,
          availableAttributeSymbols,
          indicesBuffer
        );
        if (isStatic) {
          geometry.__vaoCache[vaoId] = vao;
        }
      }
      var needsBindAttributes = true;
      if (vaoExt && isStatic) {
        if (vao.vao == null) {
          vao.vao = vaoExt.createVertexArrayOES();
        } else {
          needsBindAttributes = false;
        }
        vaoExt.bindVertexArrayOES(vao.vao);
      }
      var availableAttributes = vao.availableAttributes;
      var indicesBuffer = vao.indicesBuffer;
      if (needsBindAttributes) {
        var locationList = program.enableAttributes(this, vao.availableAttributeSymbols, vaoExt && isStatic && vao);
        for (var a = 0; a < availableAttributes.length; a++) {
          var location = locationList[a];
          if (location === -1) {
            continue;
          }
          var attributeBufferInfo = availableAttributes[a];
          var buffer = attributeBufferInfo.buffer;
          var size = attributeBufferInfo.size;
          var glType = attributeBufferTypeMap[attributeBufferInfo.type] || _gl.FLOAT;
          _gl.bindBuffer(_gl.ARRAY_BUFFER, buffer);
          _gl.vertexAttribPointer(location, size, glType, false, 0, 0);
        }
        if (geometry.isUseIndices()) {
          _gl.bindBuffer(_gl.ELEMENT_ARRAY_BUFFER, indicesBuffer.buffer);
        }
      }
      return vao;
    },
    renderPreZ: function(list, scene, camera2) {
      var _gl = this.gl;
      var preZPassMaterial = this._prezMaterial || new Material({
        shader: new Shader(Shader.source("clay.prez.vertex"), Shader.source("clay.prez.fragment"))
      });
      this._prezMaterial = preZPassMaterial;
      _gl.colorMask(false, false, false, false);
      _gl.depthMask(true);
      this.renderPass(list, camera2, {
        ifRender: function(renderable) {
          return !renderable.ignorePreZ;
        },
        isMaterialChanged: function(renderable, prevRenderable) {
          var matA = renderable.material;
          var matB = prevRenderable.material;
          return matA.get("diffuseMap") !== matB.get("diffuseMap") || (matA.get("alphaCutoff") || 0) !== (matB.get("alphaCutoff") || 0);
        },
        getUniform: function(renderable, depthMaterial, symbol) {
          if (symbol === "alphaMap") {
            return renderable.material.get("diffuseMap");
          } else if (symbol === "alphaCutoff") {
            if (renderable.material.isDefined("fragment", "ALPHA_TEST") && renderable.material.get("diffuseMap")) {
              var alphaCutoff = renderable.material.get("alphaCutoff");
              return alphaCutoff || 0;
            }
            return 0;
          } else if (symbol === "uvRepeat") {
            return renderable.material.get("uvRepeat");
          } else if (symbol === "uvOffset") {
            return renderable.material.get("uvOffset");
          } else {
            return depthMaterial.get(symbol);
          }
        },
        getMaterial: function() {
          return preZPassMaterial;
        },
        sort: this.opaqueSortCompare
      });
      _gl.colorMask(true, true, true, true);
      _gl.depthMask(true);
    },
    /**
     * Dispose given scene, including all geometris, textures and shaders in the scene
     * @param {clay.Scene} scene
     */
    disposeScene: function(scene) {
      this.disposeNode(scene, true, true);
      scene.dispose();
    },
    /**
     * Dispose given node, including all geometries, textures and shaders attached on it or its descendant
     * @param {clay.Node} node
     * @param {boolean} [disposeGeometry=false] If dispose the geometries used in the descendant mesh
     * @param {boolean} [disposeTexture=false] If dispose the textures used in the descendant mesh
     */
    disposeNode: function(root, disposeGeometry, disposeTexture) {
      if (root.getParent()) {
        root.getParent().remove(root);
      }
      var disposedMap = {};
      root.traverse(function(node) {
        var material = node.material;
        if (node.geometry && disposeGeometry) {
          node.geometry.dispose(this);
        }
        if (disposeTexture && material && !disposedMap[material.__uid__]) {
          var textureUniforms = material.getTextureUniforms();
          for (var u = 0; u < textureUniforms.length; u++) {
            var uniformName = textureUniforms[u];
            var val = material.uniforms[uniformName].value;
            var uniformType = material.uniforms[uniformName].type;
            if (!val) {
              continue;
            }
            if (uniformType === "t") {
              val.dispose && val.dispose(this);
            } else if (uniformType === "tv") {
              for (var k = 0; k < val.length; k++) {
                if (val[k]) {
                  val[k].dispose && val[k].dispose(this);
                }
              }
            }
          }
          disposedMap[material.__uid__] = true;
        }
        if (node.dispose) {
          node.dispose(this);
        }
      }, this);
    },
    /**
     * Dispose given geometry
     * @param {clay.Geometry} geometry
     */
    disposeGeometry: function(geometry) {
      geometry.dispose(this);
    },
    /**
     * Dispose given texture
     * @param {clay.Texture} texture
     */
    disposeTexture: function(texture) {
      texture.dispose(this);
    },
    /**
     * Dispose given frame buffer
     * @param {clay.FrameBuffer} frameBuffer
     */
    disposeFrameBuffer: function(frameBuffer) {
      frameBuffer.dispose(this);
    },
    /**
     * Dispose renderer
     */
    dispose: function() {
    },
    /**
     * Convert screen coords to normalized device coordinates(NDC)
     * Screen coords can get from mouse event, it is positioned relative to canvas element
     * NDC can be used in ray casting with Camera.prototype.castRay methods
     *
     * @param  {number}       x
     * @param  {number}       y
     * @param  {clay.Vector2} [out]
     * @return {clay.Vector2}
     */
    screenToNDC: function(x, y, out) {
      if (!out) {
        out = new Vector2();
      }
      y = this._height - y;
      var viewport = this.viewport;
      var arr = out.array;
      arr[0] = (x - viewport.x) / viewport.width;
      arr[0] = arr[0] * 2 - 1;
      arr[1] = (y - viewport.y) / viewport.height;
      arr[1] = arr[1] * 2 - 1;
      return out;
    }
  }
);
Renderer.opaqueSortCompare = Renderer.prototype.opaqueSortCompare = function(x, y) {
  if (x.renderOrder === y.renderOrder) {
    if (x.__program === y.__program) {
      if (x.material === y.material) {
        return x.geometry.__uid__ - y.geometry.__uid__;
      }
      return x.material.__uid__ - y.material.__uid__;
    }
    if (x.__program && y.__program) {
      return x.__program.__uid__ - y.__program.__uid__;
    }
    return 0;
  }
  return x.renderOrder - y.renderOrder;
};
Renderer.transparentSortCompare = Renderer.prototype.transparentSortCompare = function(x, y) {
  if (x.renderOrder === y.renderOrder) {
    if (x.__depth === y.__depth) {
      if (x.__program === y.__program) {
        if (x.material === y.material) {
          return x.geometry.__uid__ - y.geometry.__uid__;
        }
        return x.material.__uid__ - y.material.__uid__;
      }
      if (x.__program && y.__program) {
        return x.__program.__uid__ - y.__program.__uid__;
      }
      return 0;
    }
    return x.__depth - y.__depth;
  }
  return x.renderOrder - y.renderOrder;
};
var matrices = {
  IDENTITY: mat4Create(),
  WORLD: mat4Create(),
  VIEW: mat4Create(),
  PROJECTION: mat4Create(),
  WORLDVIEW: mat4Create(),
  VIEWPROJECTION: mat4Create(),
  WORLDVIEWPROJECTION: mat4Create(),
  WORLDINVERSE: mat4Create(),
  VIEWINVERSE: mat4Create(),
  PROJECTIONINVERSE: mat4Create(),
  WORLDVIEWINVERSE: mat4Create(),
  VIEWPROJECTIONINVERSE: mat4Create(),
  WORLDVIEWPROJECTIONINVERSE: mat4Create(),
  WORLDTRANSPOSE: mat4Create(),
  VIEWTRANSPOSE: mat4Create(),
  PROJECTIONTRANSPOSE: mat4Create(),
  WORLDVIEWTRANSPOSE: mat4Create(),
  VIEWPROJECTIONTRANSPOSE: mat4Create(),
  WORLDVIEWPROJECTIONTRANSPOSE: mat4Create(),
  WORLDINVERSETRANSPOSE: mat4Create(),
  VIEWINVERSETRANSPOSE: mat4Create(),
  PROJECTIONINVERSETRANSPOSE: mat4Create(),
  WORLDVIEWINVERSETRANSPOSE: mat4Create(),
  VIEWPROJECTIONINVERSETRANSPOSE: mat4Create(),
  WORLDVIEWPROJECTIONINVERSETRANSPOSE: mat4Create()
};
Renderer.COLOR_BUFFER_BIT = glenum.COLOR_BUFFER_BIT;
Renderer.DEPTH_BUFFER_BIT = glenum.DEPTH_BUFFER_BIT;
Renderer.STENCIL_BUFFER_BIT = glenum.STENCIL_BUFFER_BIT;
var Vector3 = function(x, y, z) {
  x = x || 0;
  y = y || 0;
  z = z || 0;
  this.array = vec3$f.fromValues(x, y, z);
  this._dirty = true;
};
Vector3.prototype = {
  constructor: Vector3,
  /**
   * Add b to self
   * @param  {clay.Vector3} b
   * @return {clay.Vector3}
   */
  add: function(b) {
    vec3$f.add(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Set x, y and z components
   * @param  {number}  x
   * @param  {number}  y
   * @param  {number}  z
   * @return {clay.Vector3}
   */
  set: function(x, y, z) {
    this.array[0] = x;
    this.array[1] = y;
    this.array[2] = z;
    this._dirty = true;
    return this;
  },
  /**
   * Set x, y and z components from array
   * @param  {Float32Array|number[]} arr
   * @return {clay.Vector3}
   */
  setArray: function(arr) {
    this.array[0] = arr[0];
    this.array[1] = arr[1];
    this.array[2] = arr[2];
    this._dirty = true;
    return this;
  },
  /**
   * Clone a new Vector3
   * @return {clay.Vector3}
   */
  clone: function() {
    return new Vector3(this.x, this.y, this.z);
  },
  /**
   * Copy from b
   * @param  {clay.Vector3} b
   * @return {clay.Vector3}
   */
  copy: function(b) {
    vec3$f.copy(this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Cross product of self and b, written to a Vector3 out
   * @param  {clay.Vector3} a
   * @param  {clay.Vector3} b
   * @return {clay.Vector3}
   */
  cross: function(a, b) {
    vec3$f.cross(this.array, a.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Alias for distance
   * @param  {clay.Vector3} b
   * @return {number}
   */
  dist: function(b) {
    return vec3$f.dist(this.array, b.array);
  },
  /**
   * Distance between self and b
   * @param  {clay.Vector3} b
   * @return {number}
   */
  distance: function(b) {
    return vec3$f.distance(this.array, b.array);
  },
  /**
   * Alias for divide
   * @param  {clay.Vector3} b
   * @return {clay.Vector3}
   */
  div: function(b) {
    vec3$f.div(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Divide self by b
   * @param  {clay.Vector3} b
   * @return {clay.Vector3}
   */
  divide: function(b) {
    vec3$f.divide(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Dot product of self and b
   * @param  {clay.Vector3} b
   * @return {number}
   */
  dot: function(b) {
    return vec3$f.dot(this.array, b.array);
  },
  /**
   * Alias of length
   * @return {number}
   */
  len: function() {
    return vec3$f.len(this.array);
  },
  /**
   * Calculate the length
   * @return {number}
   */
  length: function() {
    return vec3$f.length(this.array);
  },
  /**
   * Linear interpolation between a and b
   * @param  {clay.Vector3} a
   * @param  {clay.Vector3} b
   * @param  {number}  t
   * @return {clay.Vector3}
   */
  lerp: function(a, b, t) {
    vec3$f.lerp(this.array, a.array, b.array, t);
    this._dirty = true;
    return this;
  },
  /**
   * Minimum of self and b
   * @param  {clay.Vector3} b
   * @return {clay.Vector3}
   */
  min: function(b) {
    vec3$f.min(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Maximum of self and b
   * @param  {clay.Vector3} b
   * @return {clay.Vector3}
   */
  max: function(b) {
    vec3$f.max(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Alias for multiply
   * @param  {clay.Vector3} b
   * @return {clay.Vector3}
   */
  mul: function(b) {
    vec3$f.mul(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Mutiply self and b
   * @param  {clay.Vector3} b
   * @return {clay.Vector3}
   */
  multiply: function(b) {
    vec3$f.multiply(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Negate self
   * @return {clay.Vector3}
   */
  negate: function() {
    vec3$f.negate(this.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Normalize self
   * @return {clay.Vector3}
   */
  normalize: function() {
    vec3$f.normalize(this.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Generate random x, y, z components with a given scale
   * @param  {number} scale
   * @return {clay.Vector3}
   */
  random: function(scale) {
    vec3$f.random(this.array, scale);
    this._dirty = true;
    return this;
  },
  /**
   * Scale self
   * @param  {number}  scale
   * @return {clay.Vector3}
   */
  scale: function(s) {
    vec3$f.scale(this.array, this.array, s);
    this._dirty = true;
    return this;
  },
  /**
   * Scale b and add to self
   * @param  {clay.Vector3} b
   * @param  {number}  scale
   * @return {clay.Vector3}
   */
  scaleAndAdd: function(b, s) {
    vec3$f.scaleAndAdd(this.array, this.array, b.array, s);
    this._dirty = true;
    return this;
  },
  /**
   * Alias for squaredDistance
   * @param  {clay.Vector3} b
   * @return {number}
   */
  sqrDist: function(b) {
    return vec3$f.sqrDist(this.array, b.array);
  },
  /**
   * Squared distance between self and b
   * @param  {clay.Vector3} b
   * @return {number}
   */
  squaredDistance: function(b) {
    return vec3$f.squaredDistance(this.array, b.array);
  },
  /**
   * Alias for squaredLength
   * @return {number}
   */
  sqrLen: function() {
    return vec3$f.sqrLen(this.array);
  },
  /**
   * Squared length of self
   * @return {number}
   */
  squaredLength: function() {
    return vec3$f.squaredLength(this.array);
  },
  /**
   * Alias for subtract
   * @param  {clay.Vector3} b
   * @return {clay.Vector3}
   */
  sub: function(b) {
    vec3$f.sub(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Subtract b from self
   * @param  {clay.Vector3} b
   * @return {clay.Vector3}
   */
  subtract: function(b) {
    vec3$f.subtract(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Transform self with a Matrix3 m
   * @param  {clay.Matrix3} m
   * @return {clay.Vector3}
   */
  transformMat3: function(m) {
    vec3$f.transformMat3(this.array, this.array, m.array);
    this._dirty = true;
    return this;
  },
  /**
   * Transform self with a Matrix4 m
   * @param  {clay.Matrix4} m
   * @return {clay.Vector3}
   */
  transformMat4: function(m) {
    vec3$f.transformMat4(this.array, this.array, m.array);
    this._dirty = true;
    return this;
  },
  /**
   * Transform self with a Quaternion q
   * @param  {clay.Quaternion} q
   * @return {clay.Vector3}
   */
  transformQuat: function(q) {
    vec3$f.transformQuat(this.array, this.array, q.array);
    this._dirty = true;
    return this;
  },
  /**
   * Trasnform self into projection space with m
   * @param  {clay.Matrix4} m
   * @return {clay.Vector3}
   */
  applyProjection: function(m) {
    var v = this.array;
    m = m.array;
    if (m[15] === 0) {
      var w = -1 / v[2];
      v[0] = m[0] * v[0] * w;
      v[1] = m[5] * v[1] * w;
      v[2] = (m[10] * v[2] + m[14]) * w;
    } else {
      v[0] = m[0] * v[0] + m[12];
      v[1] = m[5] * v[1] + m[13];
      v[2] = m[10] * v[2] + m[14];
    }
    this._dirty = true;
    return this;
  },
  eulerFromQuat: function(q, order) {
    Vector3.eulerFromQuat(this, q, order);
  },
  eulerFromMat3: function(m, order) {
    Vector3.eulerFromMat3(this, m, order);
  },
  toString: function() {
    return "[" + Array.prototype.join.call(this.array, ",") + "]";
  },
  toArray: function() {
    return Array.prototype.slice.call(this.array);
  }
};
var defineProperty$3 = Object.defineProperty;
if (defineProperty$3) {
  var proto$3 = Vector3.prototype;
  defineProperty$3(proto$3, "x", {
    get: function() {
      return this.array[0];
    },
    set: function(value) {
      this.array[0] = value;
      this._dirty = true;
    }
  });
  defineProperty$3(proto$3, "y", {
    get: function() {
      return this.array[1];
    },
    set: function(value) {
      this.array[1] = value;
      this._dirty = true;
    }
  });
  defineProperty$3(proto$3, "z", {
    get: function() {
      return this.array[2];
    },
    set: function(value) {
      this.array[2] = value;
      this._dirty = true;
    }
  });
}
Vector3.add = function(out, a, b) {
  vec3$f.add(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Vector3.set = function(out, x, y, z) {
  vec3$f.set(out.array, x, y, z);
  out._dirty = true;
};
Vector3.copy = function(out, b) {
  vec3$f.copy(out.array, b.array);
  out._dirty = true;
  return out;
};
Vector3.cross = function(out, a, b) {
  vec3$f.cross(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Vector3.dist = function(a, b) {
  return vec3$f.distance(a.array, b.array);
};
Vector3.distance = Vector3.dist;
Vector3.div = function(out, a, b) {
  vec3$f.divide(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Vector3.divide = Vector3.div;
Vector3.dot = function(a, b) {
  return vec3$f.dot(a.array, b.array);
};
Vector3.len = function(b) {
  return vec3$f.length(b.array);
};
Vector3.lerp = function(out, a, b, t) {
  vec3$f.lerp(out.array, a.array, b.array, t);
  out._dirty = true;
  return out;
};
Vector3.min = function(out, a, b) {
  vec3$f.min(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Vector3.max = function(out, a, b) {
  vec3$f.max(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Vector3.mul = function(out, a, b) {
  vec3$f.multiply(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Vector3.multiply = Vector3.mul;
Vector3.negate = function(out, a) {
  vec3$f.negate(out.array, a.array);
  out._dirty = true;
  return out;
};
Vector3.normalize = function(out, a) {
  vec3$f.normalize(out.array, a.array);
  out._dirty = true;
  return out;
};
Vector3.random = function(out, scale) {
  vec3$f.random(out.array, scale);
  out._dirty = true;
  return out;
};
Vector3.scale = function(out, a, scale) {
  vec3$f.scale(out.array, a.array, scale);
  out._dirty = true;
  return out;
};
Vector3.scaleAndAdd = function(out, a, b, scale) {
  vec3$f.scaleAndAdd(out.array, a.array, b.array, scale);
  out._dirty = true;
  return out;
};
Vector3.sqrDist = function(a, b) {
  return vec3$f.sqrDist(a.array, b.array);
};
Vector3.squaredDistance = Vector3.sqrDist;
Vector3.sqrLen = function(a) {
  return vec3$f.sqrLen(a.array);
};
Vector3.squaredLength = Vector3.sqrLen;
Vector3.sub = function(out, a, b) {
  vec3$f.subtract(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Vector3.subtract = Vector3.sub;
Vector3.transformMat3 = function(out, a, m) {
  vec3$f.transformMat3(out.array, a.array, m.array);
  out._dirty = true;
  return out;
};
Vector3.transformMat4 = function(out, a, m) {
  vec3$f.transformMat4(out.array, a.array, m.array);
  out._dirty = true;
  return out;
};
Vector3.transformQuat = function(out, a, q) {
  vec3$f.transformQuat(out.array, a.array, q.array);
  out._dirty = true;
  return out;
};
function clamp(val, min, max) {
  return val < min ? min : val > max ? max : val;
}
var atan2 = Math.atan2;
var asin$1 = Math.asin;
var abs = Math.abs;
Vector3.eulerFromQuat = function(out, q, order) {
  out._dirty = true;
  q = q.array;
  var target = out.array;
  var x = q[0], y = q[1], z = q[2], w = q[3];
  var x2 = x * x;
  var y2 = y * y;
  var z2 = z * z;
  var w2 = w * w;
  var order = (order || "XYZ").toUpperCase();
  switch (order) {
    case "XYZ":
      target[0] = atan2(2 * (x * w - y * z), w2 - x2 - y2 + z2);
      target[1] = asin$1(clamp(2 * (x * z + y * w), -1, 1));
      target[2] = atan2(2 * (z * w - x * y), w2 + x2 - y2 - z2);
      break;
    case "YXZ":
      target[0] = asin$1(clamp(2 * (x * w - y * z), -1, 1));
      target[1] = atan2(2 * (x * z + y * w), w2 - x2 - y2 + z2);
      target[2] = atan2(2 * (x * y + z * w), w2 - x2 + y2 - z2);
      break;
    case "ZXY":
      target[0] = asin$1(clamp(2 * (x * w + y * z), -1, 1));
      target[1] = atan2(2 * (y * w - z * x), w2 - x2 - y2 + z2);
      target[2] = atan2(2 * (z * w - x * y), w2 - x2 + y2 - z2);
      break;
    case "ZYX":
      target[0] = atan2(2 * (x * w + z * y), w2 - x2 - y2 + z2);
      target[1] = asin$1(clamp(2 * (y * w - x * z), -1, 1));
      target[2] = atan2(2 * (x * y + z * w), w2 + x2 - y2 - z2);
      break;
    case "YZX":
      target[0] = atan2(2 * (x * w - z * y), w2 - x2 + y2 - z2);
      target[1] = atan2(2 * (y * w - x * z), w2 + x2 - y2 - z2);
      target[2] = asin$1(clamp(2 * (x * y + z * w), -1, 1));
      break;
    case "XZY":
      target[0] = atan2(2 * (x * w + y * z), w2 - x2 + y2 - z2);
      target[1] = atan2(2 * (x * z + y * w), w2 + x2 - y2 - z2);
      target[2] = asin$1(clamp(2 * (z * w - x * y), -1, 1));
      break;
    default:
      console.warn("Unkown order: " + order);
  }
  return out;
};
Vector3.eulerFromMat3 = function(out, m, order) {
  var te = m.array;
  var m11 = te[0], m12 = te[3], m13 = te[6];
  var m21 = te[1], m22 = te[4], m23 = te[7];
  var m31 = te[2], m32 = te[5], m33 = te[8];
  var target = out.array;
  var order = (order || "XYZ").toUpperCase();
  switch (order) {
    case "XYZ":
      target[1] = asin$1(clamp(m13, -1, 1));
      if (abs(m13) < 0.99999) {
        target[0] = atan2(-m23, m33);
        target[2] = atan2(-m12, m11);
      } else {
        target[0] = atan2(m32, m22);
        target[2] = 0;
      }
      break;
    case "YXZ":
      target[0] = asin$1(-clamp(m23, -1, 1));
      if (abs(m23) < 0.99999) {
        target[1] = atan2(m13, m33);
        target[2] = atan2(m21, m22);
      } else {
        target[1] = atan2(-m31, m11);
        target[2] = 0;
      }
      break;
    case "ZXY":
      target[0] = asin$1(clamp(m32, -1, 1));
      if (abs(m32) < 0.99999) {
        target[1] = atan2(-m31, m33);
        target[2] = atan2(-m12, m22);
      } else {
        target[1] = 0;
        target[2] = atan2(m21, m11);
      }
      break;
    case "ZYX":
      target[1] = asin$1(-clamp(m31, -1, 1));
      if (abs(m31) < 0.99999) {
        target[0] = atan2(m32, m33);
        target[2] = atan2(m21, m11);
      } else {
        target[0] = 0;
        target[2] = atan2(-m12, m22);
      }
      break;
    case "YZX":
      target[2] = asin$1(clamp(m21, -1, 1));
      if (abs(m21) < 0.99999) {
        target[0] = atan2(-m23, m22);
        target[1] = atan2(-m31, m11);
      } else {
        target[0] = 0;
        target[1] = atan2(m13, m33);
      }
      break;
    case "XZY":
      target[2] = asin$1(-clamp(m12, -1, 1));
      if (abs(m12) < 0.99999) {
        target[0] = atan2(m32, m22);
        target[1] = atan2(m13, m11);
      } else {
        target[0] = atan2(-m23, m33);
        target[1] = 0;
      }
      break;
    default:
      console.warn("Unkown order: " + order);
  }
  out._dirty = true;
  return out;
};
Object.defineProperties(Vector3, {
  /**
   * @type {clay.Vector3}
   * @readOnly
   * @memberOf clay.Vector3
   */
  POSITIVE_X: {
    get: function() {
      return new Vector3(1, 0, 0);
    }
  },
  /**
   * @type {clay.Vector3}
   * @readOnly
   * @memberOf clay.Vector3
   */
  NEGATIVE_X: {
    get: function() {
      return new Vector3(-1, 0, 0);
    }
  },
  /**
   * @type {clay.Vector3}
   * @readOnly
   * @memberOf clay.Vector3
   */
  POSITIVE_Y: {
    get: function() {
      return new Vector3(0, 1, 0);
    }
  },
  /**
   * @type {clay.Vector3}
   * @readOnly
   * @memberOf clay.Vector3
   */
  NEGATIVE_Y: {
    get: function() {
      return new Vector3(0, -1, 0);
    }
  },
  /**
   * @type {clay.Vector3}
   * @readOnly
   * @memberOf clay.Vector3
   */
  POSITIVE_Z: {
    get: function() {
      return new Vector3(0, 0, 1);
    }
  },
  /**
   * @type {clay.Vector3}
   * @readOnly
   */
  NEGATIVE_Z: {
    get: function() {
      return new Vector3(0, 0, -1);
    }
  },
  /**
   * @type {clay.Vector3}
   * @readOnly
   * @memberOf clay.Vector3
   */
  UP: {
    get: function() {
      return new Vector3(0, 1, 0);
    }
  },
  /**
   * @type {clay.Vector3}
   * @readOnly
   * @memberOf clay.Vector3
   */
  ZERO: {
    get: function() {
      return new Vector3();
    }
  }
});
var EPSILON$1 = 1e-5;
var Ray = function(origin, direction) {
  this.origin = origin || new Vector3();
  this.direction = direction || new Vector3();
};
Ray.prototype = {
  constructor: Ray,
  // http://www.siggraph.org/education/materials/HyperGraph/raytrace/rayplane_intersection.htm
  /**
   * Calculate intersection point between ray and a give plane
   * @param  {clay.Plane} plane
   * @param  {clay.Vector3} [out]
   * @return {clay.Vector3}
   */
  intersectPlane: function(plane, out) {
    var pn = plane.normal.array;
    var d = plane.distance;
    var ro = this.origin.array;
    var rd = this.direction.array;
    var divider = vec3$f.dot(pn, rd);
    if (divider === 0) {
      return null;
    }
    if (!out) {
      out = new Vector3();
    }
    var t = (vec3$f.dot(pn, ro) - d) / divider;
    vec3$f.scaleAndAdd(out.array, ro, rd, -t);
    out._dirty = true;
    return out;
  },
  /**
   * Mirror the ray against plane
   * @param  {clay.Plane} plane
   */
  mirrorAgainstPlane: function(plane) {
    var d = vec3$f.dot(plane.normal.array, this.direction.array);
    vec3$f.scaleAndAdd(this.direction.array, this.direction.array, plane.normal.array, -d * 2);
    this.direction._dirty = true;
  },
  distanceToPoint: function() {
    var v = vec3$f.create();
    return function(point) {
      vec3$f.sub(v, point, this.origin.array);
      var b = vec3$f.dot(v, this.direction.array);
      if (b < 0) {
        return vec3$f.distance(this.origin.array, point);
      }
      var c2 = vec3$f.lenSquared(v);
      return Math.sqrt(c2 - b * b);
    };
  }(),
  /**
   * Calculate intersection point between ray and sphere
   * @param  {clay.Vector3} center
   * @param  {number} radius
   * @param  {clay.Vector3} out
   * @return {clay.Vector3}
   */
  intersectSphere: function() {
    var v = vec3$f.create();
    return function(center, radius, out) {
      var origin = this.origin.array;
      var direction = this.direction.array;
      center = center.array;
      vec3$f.sub(v, center, origin);
      var b = vec3$f.dot(v, direction);
      var c2 = vec3$f.squaredLength(v);
      var d2 = c2 - b * b;
      var r2 = radius * radius;
      if (d2 > r2) {
        return;
      }
      var a = Math.sqrt(r2 - d2);
      var t0 = b - a;
      var t1 = b + a;
      if (!out) {
        out = new Vector3();
      }
      if (t0 < 0) {
        if (t1 < 0) {
          return null;
        } else {
          vec3$f.scaleAndAdd(out.array, origin, direction, t1);
          return out;
        }
      } else {
        vec3$f.scaleAndAdd(out.array, origin, direction, t0);
        return out;
      }
    };
  }(),
  // http://www.scratchapixel.com/lessons/3d-basic-lessons/lesson-7-intersecting-simple-shapes/ray-box-intersection/
  /**
   * Calculate intersection point between ray and bounding box
   * @param {clay.BoundingBox} bbox
   * @param {clay.Vector3}
   * @return {clay.Vector3}
   */
  intersectBoundingBox: function(bbox, out) {
    var dir = this.direction.array;
    var origin = this.origin.array;
    var min = bbox.min.array;
    var max = bbox.max.array;
    var invdirx = 1 / dir[0];
    var invdiry = 1 / dir[1];
    var invdirz = 1 / dir[2];
    var tmin, tmax, tymin, tymax, tzmin, tzmax;
    if (invdirx >= 0) {
      tmin = (min[0] - origin[0]) * invdirx;
      tmax = (max[0] - origin[0]) * invdirx;
    } else {
      tmax = (min[0] - origin[0]) * invdirx;
      tmin = (max[0] - origin[0]) * invdirx;
    }
    if (invdiry >= 0) {
      tymin = (min[1] - origin[1]) * invdiry;
      tymax = (max[1] - origin[1]) * invdiry;
    } else {
      tymax = (min[1] - origin[1]) * invdiry;
      tymin = (max[1] - origin[1]) * invdiry;
    }
    if (tmin > tymax || tymin > tmax) {
      return null;
    }
    if (tymin > tmin || tmin !== tmin) {
      tmin = tymin;
    }
    if (tymax < tmax || tmax !== tmax) {
      tmax = tymax;
    }
    if (invdirz >= 0) {
      tzmin = (min[2] - origin[2]) * invdirz;
      tzmax = (max[2] - origin[2]) * invdirz;
    } else {
      tzmax = (min[2] - origin[2]) * invdirz;
      tzmin = (max[2] - origin[2]) * invdirz;
    }
    if (tmin > tzmax || tzmin > tmax) {
      return null;
    }
    if (tzmin > tmin || tmin !== tmin) {
      tmin = tzmin;
    }
    if (tzmax < tmax || tmax !== tmax) {
      tmax = tzmax;
    }
    if (tmax < 0) {
      return null;
    }
    var t = tmin >= 0 ? tmin : tmax;
    if (!out) {
      out = new Vector3();
    }
    vec3$f.scaleAndAdd(out.array, origin, dir, t);
    return out;
  },
  // http://en.wikipedia.org/wiki/M%C3%B6ller%E2%80%93Trumbore_intersection_algorithm
  /**
   * Calculate intersection point between ray and three triangle vertices
   * @param {clay.Vector3} a
   * @param {clay.Vector3} b
   * @param {clay.Vector3} c
   * @param {boolean}           singleSided, CW triangle will be ignored
   * @param {clay.Vector3} [out]
   * @param {clay.Vector3} [barycenteric] barycentric coords
   * @return {clay.Vector3}
   */
  intersectTriangle: function() {
    var eBA = vec3$f.create();
    var eCA = vec3$f.create();
    var AO = vec3$f.create();
    var vCross = vec3$f.create();
    return function(a, b, c, singleSided, out, barycenteric) {
      var dir = this.direction.array;
      var origin = this.origin.array;
      a = a.array;
      b = b.array;
      c = c.array;
      vec3$f.sub(eBA, b, a);
      vec3$f.sub(eCA, c, a);
      vec3$f.cross(vCross, eCA, dir);
      var det = vec3$f.dot(eBA, vCross);
      if (singleSided) {
        if (det > -EPSILON$1) {
          return null;
        }
      } else {
        if (det > -EPSILON$1 && det < EPSILON$1) {
          return null;
        }
      }
      vec3$f.sub(AO, origin, a);
      var u = vec3$f.dot(vCross, AO) / det;
      if (u < 0 || u > 1) {
        return null;
      }
      vec3$f.cross(vCross, eBA, AO);
      var v = vec3$f.dot(dir, vCross) / det;
      if (v < 0 || v > 1 || u + v > 1) {
        return null;
      }
      vec3$f.cross(vCross, eBA, eCA);
      var t = -vec3$f.dot(AO, vCross) / det;
      if (t < 0) {
        return null;
      }
      if (!out) {
        out = new Vector3();
      }
      if (barycenteric) {
        Vector3.set(barycenteric, 1 - u - v, u, v);
      }
      vec3$f.scaleAndAdd(out.array, origin, dir, t);
      return out;
    };
  }(),
  /**
   * Apply an affine transform matrix to the ray
   * @return {clay.Matrix4} matrix
   */
  applyTransform: function(matrix) {
    Vector3.add(this.direction, this.direction, this.origin);
    Vector3.transformMat4(this.origin, this.origin, matrix);
    Vector3.transformMat4(this.direction, this.direction, matrix);
    Vector3.sub(this.direction, this.direction, this.origin);
    Vector3.normalize(this.direction, this.direction);
  },
  /**
   * Copy values from another ray
   * @param {clay.Ray} ray
   */
  copy: function(ray) {
    Vector3.copy(this.origin, ray.origin);
    Vector3.copy(this.direction, ray.direction);
  },
  /**
   * Clone a new ray
   * @return {clay.Ray}
   */
  clone: function() {
    var ray = new Ray();
    ray.copy(this);
    return ray;
  }
};
var vec4$1 = {};
vec4$1.create = function() {
  var out = new GLMAT_ARRAY_TYPE(4);
  out[0] = 0;
  out[1] = 0;
  out[2] = 0;
  out[3] = 0;
  return out;
};
vec4$1.clone = function(a) {
  var out = new GLMAT_ARRAY_TYPE(4);
  out[0] = a[0];
  out[1] = a[1];
  out[2] = a[2];
  out[3] = a[3];
  return out;
};
vec4$1.fromValues = function(x, y, z, w) {
  var out = new GLMAT_ARRAY_TYPE(4);
  out[0] = x;
  out[1] = y;
  out[2] = z;
  out[3] = w;
  return out;
};
vec4$1.copy = function(out, a) {
  out[0] = a[0];
  out[1] = a[1];
  out[2] = a[2];
  out[3] = a[3];
  return out;
};
vec4$1.set = function(out, x, y, z, w) {
  out[0] = x;
  out[1] = y;
  out[2] = z;
  out[3] = w;
  return out;
};
vec4$1.add = function(out, a, b) {
  out[0] = a[0] + b[0];
  out[1] = a[1] + b[1];
  out[2] = a[2] + b[2];
  out[3] = a[3] + b[3];
  return out;
};
vec4$1.subtract = function(out, a, b) {
  out[0] = a[0] - b[0];
  out[1] = a[1] - b[1];
  out[2] = a[2] - b[2];
  out[3] = a[3] - b[3];
  return out;
};
vec4$1.sub = vec4$1.subtract;
vec4$1.multiply = function(out, a, b) {
  out[0] = a[0] * b[0];
  out[1] = a[1] * b[1];
  out[2] = a[2] * b[2];
  out[3] = a[3] * b[3];
  return out;
};
vec4$1.mul = vec4$1.multiply;
vec4$1.divide = function(out, a, b) {
  out[0] = a[0] / b[0];
  out[1] = a[1] / b[1];
  out[2] = a[2] / b[2];
  out[3] = a[3] / b[3];
  return out;
};
vec4$1.div = vec4$1.divide;
vec4$1.min = function(out, a, b) {
  out[0] = Math.min(a[0], b[0]);
  out[1] = Math.min(a[1], b[1]);
  out[2] = Math.min(a[2], b[2]);
  out[3] = Math.min(a[3], b[3]);
  return out;
};
vec4$1.max = function(out, a, b) {
  out[0] = Math.max(a[0], b[0]);
  out[1] = Math.max(a[1], b[1]);
  out[2] = Math.max(a[2], b[2]);
  out[3] = Math.max(a[3], b[3]);
  return out;
};
vec4$1.scale = function(out, a, b) {
  out[0] = a[0] * b;
  out[1] = a[1] * b;
  out[2] = a[2] * b;
  out[3] = a[3] * b;
  return out;
};
vec4$1.scaleAndAdd = function(out, a, b, scale) {
  out[0] = a[0] + b[0] * scale;
  out[1] = a[1] + b[1] * scale;
  out[2] = a[2] + b[2] * scale;
  out[3] = a[3] + b[3] * scale;
  return out;
};
vec4$1.distance = function(a, b) {
  var x = b[0] - a[0], y = b[1] - a[1], z = b[2] - a[2], w = b[3] - a[3];
  return Math.sqrt(x * x + y * y + z * z + w * w);
};
vec4$1.dist = vec4$1.distance;
vec4$1.squaredDistance = function(a, b) {
  var x = b[0] - a[0], y = b[1] - a[1], z = b[2] - a[2], w = b[3] - a[3];
  return x * x + y * y + z * z + w * w;
};
vec4$1.sqrDist = vec4$1.squaredDistance;
vec4$1.length = function(a) {
  var x = a[0], y = a[1], z = a[2], w = a[3];
  return Math.sqrt(x * x + y * y + z * z + w * w);
};
vec4$1.len = vec4$1.length;
vec4$1.squaredLength = function(a) {
  var x = a[0], y = a[1], z = a[2], w = a[3];
  return x * x + y * y + z * z + w * w;
};
vec4$1.sqrLen = vec4$1.squaredLength;
vec4$1.negate = function(out, a) {
  out[0] = -a[0];
  out[1] = -a[1];
  out[2] = -a[2];
  out[3] = -a[3];
  return out;
};
vec4$1.inverse = function(out, a) {
  out[0] = 1 / a[0];
  out[1] = 1 / a[1];
  out[2] = 1 / a[2];
  out[3] = 1 / a[3];
  return out;
};
vec4$1.normalize = function(out, a) {
  var x = a[0], y = a[1], z = a[2], w = a[3];
  var len = x * x + y * y + z * z + w * w;
  if (len > 0) {
    len = 1 / Math.sqrt(len);
    out[0] = a[0] * len;
    out[1] = a[1] * len;
    out[2] = a[2] * len;
    out[3] = a[3] * len;
  }
  return out;
};
vec4$1.dot = function(a, b) {
  return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];
};
vec4$1.lerp = function(out, a, b, t) {
  var ax = a[0], ay = a[1], az = a[2], aw = a[3];
  out[0] = ax + t * (b[0] - ax);
  out[1] = ay + t * (b[1] - ay);
  out[2] = az + t * (b[2] - az);
  out[3] = aw + t * (b[3] - aw);
  return out;
};
vec4$1.random = function(out, scale) {
  scale = scale || 1;
  out[0] = GLMAT_RANDOM$1();
  out[1] = GLMAT_RANDOM$1();
  out[2] = GLMAT_RANDOM$1();
  out[3] = GLMAT_RANDOM$1();
  vec4$1.normalize(out, out);
  vec4$1.scale(out, out, scale);
  return out;
};
vec4$1.transformMat4 = function(out, a, m) {
  var x = a[0], y = a[1], z = a[2], w = a[3];
  out[0] = m[0] * x + m[4] * y + m[8] * z + m[12] * w;
  out[1] = m[1] * x + m[5] * y + m[9] * z + m[13] * w;
  out[2] = m[2] * x + m[6] * y + m[10] * z + m[14] * w;
  out[3] = m[3] * x + m[7] * y + m[11] * z + m[15] * w;
  return out;
};
vec4$1.transformQuat = function(out, a, q) {
  var x = a[0], y = a[1], z = a[2], qx = q[0], qy = q[1], qz = q[2], qw = q[3], ix = qw * x + qy * z - qz * y, iy = qw * y + qz * x - qx * z, iz = qw * z + qx * y - qy * x, iw = -qx * x - qy * y - qz * z;
  out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;
  out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;
  out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;
  return out;
};
vec4$1.forEach = function() {
  var vec = vec4$1.create();
  return function(a, stride, offset, count, fn, arg) {
    var i, l;
    if (!stride) {
      stride = 4;
    }
    if (!offset) {
      offset = 0;
    }
    if (count) {
      l = Math.min(count * stride + offset, a.length);
    } else {
      l = a.length;
    }
    for (i = offset; i < l; i += stride) {
      vec[0] = a[i];
      vec[1] = a[i + 1];
      vec[2] = a[i + 2];
      vec[3] = a[i + 3];
      fn(vec, vec, arg);
      a[i] = vec[0];
      a[i + 1] = vec[1];
      a[i + 2] = vec[2];
      a[i + 3] = vec[3];
    }
    return a;
  };
}();
var mat3$1 = {};
mat3$1.create = function() {
  var out = new GLMAT_ARRAY_TYPE(9);
  out[0] = 1;
  out[1] = 0;
  out[2] = 0;
  out[3] = 0;
  out[4] = 1;
  out[5] = 0;
  out[6] = 0;
  out[7] = 0;
  out[8] = 1;
  return out;
};
mat3$1.fromMat4 = function(out, a) {
  out[0] = a[0];
  out[1] = a[1];
  out[2] = a[2];
  out[3] = a[4];
  out[4] = a[5];
  out[5] = a[6];
  out[6] = a[8];
  out[7] = a[9];
  out[8] = a[10];
  return out;
};
mat3$1.clone = function(a) {
  var out = new GLMAT_ARRAY_TYPE(9);
  out[0] = a[0];
  out[1] = a[1];
  out[2] = a[2];
  out[3] = a[3];
  out[4] = a[4];
  out[5] = a[5];
  out[6] = a[6];
  out[7] = a[7];
  out[8] = a[8];
  return out;
};
mat3$1.copy = function(out, a) {
  out[0] = a[0];
  out[1] = a[1];
  out[2] = a[2];
  out[3] = a[3];
  out[4] = a[4];
  out[5] = a[5];
  out[6] = a[6];
  out[7] = a[7];
  out[8] = a[8];
  return out;
};
mat3$1.identity = function(out) {
  out[0] = 1;
  out[1] = 0;
  out[2] = 0;
  out[3] = 0;
  out[4] = 1;
  out[5] = 0;
  out[6] = 0;
  out[7] = 0;
  out[8] = 1;
  return out;
};
mat3$1.transpose = function(out, a) {
  if (out === a) {
    var a01 = a[1], a02 = a[2], a12 = a[5];
    out[1] = a[3];
    out[2] = a[6];
    out[3] = a01;
    out[5] = a[7];
    out[6] = a02;
    out[7] = a12;
  } else {
    out[0] = a[0];
    out[1] = a[3];
    out[2] = a[6];
    out[3] = a[1];
    out[4] = a[4];
    out[5] = a[7];
    out[6] = a[2];
    out[7] = a[5];
    out[8] = a[8];
  }
  return out;
};
mat3$1.invert = function(out, a) {
  var a00 = a[0], a01 = a[1], a02 = a[2], a10 = a[3], a11 = a[4], a12 = a[5], a20 = a[6], a21 = a[7], a22 = a[8], b01 = a22 * a11 - a12 * a21, b11 = -a22 * a10 + a12 * a20, b21 = a21 * a10 - a11 * a20, det = a00 * b01 + a01 * b11 + a02 * b21;
  if (!det) {
    return null;
  }
  det = 1 / det;
  out[0] = b01 * det;
  out[1] = (-a22 * a01 + a02 * a21) * det;
  out[2] = (a12 * a01 - a02 * a11) * det;
  out[3] = b11 * det;
  out[4] = (a22 * a00 - a02 * a20) * det;
  out[5] = (-a12 * a00 + a02 * a10) * det;
  out[6] = b21 * det;
  out[7] = (-a21 * a00 + a01 * a20) * det;
  out[8] = (a11 * a00 - a01 * a10) * det;
  return out;
};
mat3$1.adjoint = function(out, a) {
  var a00 = a[0], a01 = a[1], a02 = a[2], a10 = a[3], a11 = a[4], a12 = a[5], a20 = a[6], a21 = a[7], a22 = a[8];
  out[0] = a11 * a22 - a12 * a21;
  out[1] = a02 * a21 - a01 * a22;
  out[2] = a01 * a12 - a02 * a11;
  out[3] = a12 * a20 - a10 * a22;
  out[4] = a00 * a22 - a02 * a20;
  out[5] = a02 * a10 - a00 * a12;
  out[6] = a10 * a21 - a11 * a20;
  out[7] = a01 * a20 - a00 * a21;
  out[8] = a00 * a11 - a01 * a10;
  return out;
};
mat3$1.determinant = function(a) {
  var a00 = a[0], a01 = a[1], a02 = a[2], a10 = a[3], a11 = a[4], a12 = a[5], a20 = a[6], a21 = a[7], a22 = a[8];
  return a00 * (a22 * a11 - a12 * a21) + a01 * (-a22 * a10 + a12 * a20) + a02 * (a21 * a10 - a11 * a20);
};
mat3$1.multiply = function(out, a, b) {
  var a00 = a[0], a01 = a[1], a02 = a[2], a10 = a[3], a11 = a[4], a12 = a[5], a20 = a[6], a21 = a[7], a22 = a[8], b00 = b[0], b01 = b[1], b02 = b[2], b10 = b[3], b11 = b[4], b12 = b[5], b20 = b[6], b21 = b[7], b22 = b[8];
  out[0] = b00 * a00 + b01 * a10 + b02 * a20;
  out[1] = b00 * a01 + b01 * a11 + b02 * a21;
  out[2] = b00 * a02 + b01 * a12 + b02 * a22;
  out[3] = b10 * a00 + b11 * a10 + b12 * a20;
  out[4] = b10 * a01 + b11 * a11 + b12 * a21;
  out[5] = b10 * a02 + b11 * a12 + b12 * a22;
  out[6] = b20 * a00 + b21 * a10 + b22 * a20;
  out[7] = b20 * a01 + b21 * a11 + b22 * a21;
  out[8] = b20 * a02 + b21 * a12 + b22 * a22;
  return out;
};
mat3$1.mul = mat3$1.multiply;
mat3$1.translate = function(out, a, v) {
  var a00 = a[0], a01 = a[1], a02 = a[2], a10 = a[3], a11 = a[4], a12 = a[5], a20 = a[6], a21 = a[7], a22 = a[8], x = v[0], y = v[1];
  out[0] = a00;
  out[1] = a01;
  out[2] = a02;
  out[3] = a10;
  out[4] = a11;
  out[5] = a12;
  out[6] = x * a00 + y * a10 + a20;
  out[7] = x * a01 + y * a11 + a21;
  out[8] = x * a02 + y * a12 + a22;
  return out;
};
mat3$1.rotate = function(out, a, rad2) {
  var a00 = a[0], a01 = a[1], a02 = a[2], a10 = a[3], a11 = a[4], a12 = a[5], a20 = a[6], a21 = a[7], a22 = a[8], s = Math.sin(rad2), c = Math.cos(rad2);
  out[0] = c * a00 + s * a10;
  out[1] = c * a01 + s * a11;
  out[2] = c * a02 + s * a12;
  out[3] = c * a10 - s * a00;
  out[4] = c * a11 - s * a01;
  out[5] = c * a12 - s * a02;
  out[6] = a20;
  out[7] = a21;
  out[8] = a22;
  return out;
};
mat3$1.scale = function(out, a, v) {
  var x = v[0], y = v[1];
  out[0] = x * a[0];
  out[1] = x * a[1];
  out[2] = x * a[2];
  out[3] = y * a[3];
  out[4] = y * a[4];
  out[5] = y * a[5];
  out[6] = a[6];
  out[7] = a[7];
  out[8] = a[8];
  return out;
};
mat3$1.fromMat2d = function(out, a) {
  out[0] = a[0];
  out[1] = a[1];
  out[2] = 0;
  out[3] = a[2];
  out[4] = a[3];
  out[5] = 0;
  out[6] = a[4];
  out[7] = a[5];
  out[8] = 1;
  return out;
};
mat3$1.fromQuat = function(out, q) {
  var x = q[0], y = q[1], z = q[2], w = q[3], x2 = x + x, y2 = y + y, z2 = z + z, xx = x * x2, yx = y * x2, yy = y * y2, zx = z * x2, zy = z * y2, zz = z * z2, wx2 = w * x2, wy = w * y2, wz = w * z2;
  out[0] = 1 - yy - zz;
  out[3] = yx - wz;
  out[6] = zx + wy;
  out[1] = yx + wz;
  out[4] = 1 - xx - zz;
  out[7] = zy - wx2;
  out[2] = zx - wy;
  out[5] = zy + wx2;
  out[8] = 1 - xx - yy;
  return out;
};
mat3$1.normalFromMat4 = function(out, a) {
  var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3], a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7], a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11], a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15], b00 = a00 * a11 - a01 * a10, b01 = a00 * a12 - a02 * a10, b02 = a00 * a13 - a03 * a10, b03 = a01 * a12 - a02 * a11, b04 = a01 * a13 - a03 * a11, b05 = a02 * a13 - a03 * a12, b06 = a20 * a31 - a21 * a30, b07 = a20 * a32 - a22 * a30, b08 = a20 * a33 - a23 * a30, b09 = a21 * a32 - a22 * a31, b10 = a21 * a33 - a23 * a31, b11 = a22 * a33 - a23 * a32, det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;
  if (!det) {
    return null;
  }
  det = 1 / det;
  out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;
  out[1] = (a12 * b08 - a10 * b11 - a13 * b07) * det;
  out[2] = (a10 * b10 - a11 * b08 + a13 * b06) * det;
  out[3] = (a02 * b10 - a01 * b11 - a03 * b09) * det;
  out[4] = (a00 * b11 - a02 * b08 + a03 * b07) * det;
  out[5] = (a01 * b08 - a00 * b10 - a03 * b06) * det;
  out[6] = (a31 * b05 - a32 * b04 + a33 * b03) * det;
  out[7] = (a32 * b02 - a30 * b05 - a33 * b01) * det;
  out[8] = (a30 * b04 - a31 * b02 + a33 * b00) * det;
  return out;
};
mat3$1.frob = function(a) {
  return Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2));
};
var quat = {};
quat.create = function() {
  var out = new GLMAT_ARRAY_TYPE(4);
  out[0] = 0;
  out[1] = 0;
  out[2] = 0;
  out[3] = 1;
  return out;
};
quat.rotationTo = function() {
  var tmpvec3 = vec3$f.create();
  var xUnitVec3 = vec3$f.fromValues(1, 0, 0);
  var yUnitVec3 = vec3$f.fromValues(0, 1, 0);
  return function(out, a, b) {
    var dot = vec3$f.dot(a, b);
    if (dot < -0.999999) {
      vec3$f.cross(tmpvec3, xUnitVec3, a);
      if (vec3$f.length(tmpvec3) < 1e-6)
        vec3$f.cross(tmpvec3, yUnitVec3, a);
      vec3$f.normalize(tmpvec3, tmpvec3);
      quat.setAxisAngle(out, tmpvec3, Math.PI);
      return out;
    } else if (dot > 0.999999) {
      out[0] = 0;
      out[1] = 0;
      out[2] = 0;
      out[3] = 1;
      return out;
    } else {
      vec3$f.cross(tmpvec3, a, b);
      out[0] = tmpvec3[0];
      out[1] = tmpvec3[1];
      out[2] = tmpvec3[2];
      out[3] = 1 + dot;
      return quat.normalize(out, out);
    }
  };
}();
quat.setAxes = function() {
  var matr = mat3$1.create();
  return function(out, view, right, up) {
    matr[0] = right[0];
    matr[3] = right[1];
    matr[6] = right[2];
    matr[1] = up[0];
    matr[4] = up[1];
    matr[7] = up[2];
    matr[2] = -view[0];
    matr[5] = -view[1];
    matr[8] = -view[2];
    return quat.normalize(out, quat.fromMat3(out, matr));
  };
}();
quat.clone = vec4$1.clone;
quat.fromValues = vec4$1.fromValues;
quat.copy = vec4$1.copy;
quat.set = vec4$1.set;
quat.identity = function(out) {
  out[0] = 0;
  out[1] = 0;
  out[2] = 0;
  out[3] = 1;
  return out;
};
quat.setAxisAngle = function(out, axis, rad2) {
  rad2 = rad2 * 0.5;
  var s = Math.sin(rad2);
  out[0] = s * axis[0];
  out[1] = s * axis[1];
  out[2] = s * axis[2];
  out[3] = Math.cos(rad2);
  return out;
};
quat.add = vec4$1.add;
quat.multiply = function(out, a, b) {
  var ax = a[0], ay = a[1], az = a[2], aw = a[3], bx = b[0], by = b[1], bz = b[2], bw = b[3];
  out[0] = ax * bw + aw * bx + ay * bz - az * by;
  out[1] = ay * bw + aw * by + az * bx - ax * bz;
  out[2] = az * bw + aw * bz + ax * by - ay * bx;
  out[3] = aw * bw - ax * bx - ay * by - az * bz;
  return out;
};
quat.mul = quat.multiply;
quat.scale = vec4$1.scale;
quat.rotateX = function(out, a, rad2) {
  rad2 *= 0.5;
  var ax = a[0], ay = a[1], az = a[2], aw = a[3], bx = Math.sin(rad2), bw = Math.cos(rad2);
  out[0] = ax * bw + aw * bx;
  out[1] = ay * bw + az * bx;
  out[2] = az * bw - ay * bx;
  out[3] = aw * bw - ax * bx;
  return out;
};
quat.rotateY = function(out, a, rad2) {
  rad2 *= 0.5;
  var ax = a[0], ay = a[1], az = a[2], aw = a[3], by = Math.sin(rad2), bw = Math.cos(rad2);
  out[0] = ax * bw - az * by;
  out[1] = ay * bw + aw * by;
  out[2] = az * bw + ax * by;
  out[3] = aw * bw - ay * by;
  return out;
};
quat.rotateZ = function(out, a, rad2) {
  rad2 *= 0.5;
  var ax = a[0], ay = a[1], az = a[2], aw = a[3], bz = Math.sin(rad2), bw = Math.cos(rad2);
  out[0] = ax * bw + ay * bz;
  out[1] = ay * bw - ax * bz;
  out[2] = az * bw + aw * bz;
  out[3] = aw * bw - az * bz;
  return out;
};
quat.calculateW = function(out, a) {
  var x = a[0], y = a[1], z = a[2];
  out[0] = x;
  out[1] = y;
  out[2] = z;
  out[3] = Math.sqrt(Math.abs(1 - x * x - y * y - z * z));
  return out;
};
quat.dot = vec4$1.dot;
quat.lerp = vec4$1.lerp;
quat.slerp = function(out, a, b, t) {
  var ax = a[0], ay = a[1], az = a[2], aw = a[3], bx = b[0], by = b[1], bz = b[2], bw = b[3];
  var omega, cosom, sinom, scale0, scale1;
  cosom = ax * bx + ay * by + az * bz + aw * bw;
  if (cosom < 0) {
    cosom = -cosom;
    bx = -bx;
    by = -by;
    bz = -bz;
    bw = -bw;
  }
  if (1 - cosom > 1e-6) {
    omega = Math.acos(cosom);
    sinom = Math.sin(omega);
    scale0 = Math.sin((1 - t) * omega) / sinom;
    scale1 = Math.sin(t * omega) / sinom;
  } else {
    scale0 = 1 - t;
    scale1 = t;
  }
  out[0] = scale0 * ax + scale1 * bx;
  out[1] = scale0 * ay + scale1 * by;
  out[2] = scale0 * az + scale1 * bz;
  out[3] = scale0 * aw + scale1 * bw;
  return out;
};
quat.invert = function(out, a) {
  var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], dot = a0 * a0 + a1 * a1 + a2 * a2 + a3 * a3, invDot = dot ? 1 / dot : 0;
  out[0] = -a0 * invDot;
  out[1] = -a1 * invDot;
  out[2] = -a2 * invDot;
  out[3] = a3 * invDot;
  return out;
};
quat.conjugate = function(out, a) {
  out[0] = -a[0];
  out[1] = -a[1];
  out[2] = -a[2];
  out[3] = a[3];
  return out;
};
quat.length = vec4$1.length;
quat.len = quat.length;
quat.squaredLength = vec4$1.squaredLength;
quat.sqrLen = quat.squaredLength;
quat.normalize = vec4$1.normalize;
quat.fromMat3 = function(out, m) {
  var fTrace = m[0] + m[4] + m[8];
  var fRoot;
  if (fTrace > 0) {
    fRoot = Math.sqrt(fTrace + 1);
    out[3] = 0.5 * fRoot;
    fRoot = 0.5 / fRoot;
    out[0] = (m[5] - m[7]) * fRoot;
    out[1] = (m[6] - m[2]) * fRoot;
    out[2] = (m[1] - m[3]) * fRoot;
  } else {
    var i = 0;
    if (m[4] > m[0])
      i = 1;
    if (m[8] > m[i * 3 + i])
      i = 2;
    var j = (i + 1) % 3;
    var k = (i + 2) % 3;
    fRoot = Math.sqrt(m[i * 3 + i] - m[j * 3 + j] - m[k * 3 + k] + 1);
    out[i] = 0.5 * fRoot;
    fRoot = 0.5 / fRoot;
    out[3] = (m[j * 3 + k] - m[k * 3 + j]) * fRoot;
    out[j] = (m[j * 3 + i] + m[i * 3 + j]) * fRoot;
    out[k] = (m[k * 3 + i] + m[i * 3 + k]) * fRoot;
  }
  return out;
};
var Matrix4 = function() {
  this._axisX = new Vector3();
  this._axisY = new Vector3();
  this._axisZ = new Vector3();
  this.array = mat4$2.create();
  this._dirty = true;
};
Matrix4.prototype = {
  constructor: Matrix4,
  /**
   * Set components from array
   * @param  {Float32Array|number[]} arr
   */
  setArray: function(arr) {
    for (var i = 0; i < this.array.length; i++) {
      this.array[i] = arr[i];
    }
    this._dirty = true;
    return this;
  },
  /**
   * Calculate the adjugate of self, in-place
   * @return {clay.Matrix4}
   */
  adjoint: function() {
    mat4$2.adjoint(this.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Clone a new Matrix4
   * @return {clay.Matrix4}
   */
  clone: function() {
    return new Matrix4().copy(this);
  },
  /**
   * Copy from b
   * @param  {clay.Matrix4} b
   * @return {clay.Matrix4}
   */
  copy: function(a) {
    mat4$2.copy(this.array, a.array);
    this._dirty = true;
    return this;
  },
  /**
   * Calculate matrix determinant
   * @return {number}
   */
  determinant: function() {
    return mat4$2.determinant(this.array);
  },
  /**
   * Set upper 3x3 part from quaternion
   * @param  {clay.Quaternion} q
   * @return {clay.Matrix4}
   */
  fromQuat: function(q) {
    mat4$2.fromQuat(this.array, q.array);
    this._dirty = true;
    return this;
  },
  /**
   * Set from a quaternion rotation and a vector translation
   * @param  {clay.Quaternion} q
   * @param  {clay.Vector3} v
   * @return {clay.Matrix4}
   */
  fromRotationTranslation: function(q, v) {
    mat4$2.fromRotationTranslation(this.array, q.array, v.array);
    this._dirty = true;
    return this;
  },
  /**
   * Set from Matrix2d, it is used when converting a 2d shape to 3d space.
   * In 3d space it is equivalent to ranslate on xy plane and rotate about z axis
   * @param  {clay.Matrix2d} m2d
   * @return {clay.Matrix4}
   */
  fromMat2d: function(m2d) {
    Matrix4.fromMat2d(this, m2d);
    return this;
  },
  /**
   * Set from frustum bounds
   * @param  {number} left
   * @param  {number} right
   * @param  {number} bottom
   * @param  {number} top
   * @param  {number} near
   * @param  {number} far
   * @return {clay.Matrix4}
   */
  frustum: function(left, right, bottom, top, near, far) {
    mat4$2.frustum(this.array, left, right, bottom, top, near, far);
    this._dirty = true;
    return this;
  },
  /**
   * Set to a identity matrix
   * @return {clay.Matrix4}
   */
  identity: function() {
    mat4$2.identity(this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Invert self
   * @return {clay.Matrix4}
   */
  invert: function() {
    mat4$2.invert(this.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Set as a matrix with the given eye position, focal point, and up axis
   * @param  {clay.Vector3} eye
   * @param  {clay.Vector3} center
   * @param  {clay.Vector3} up
   * @return {clay.Matrix4}
   */
  lookAt: function(eye, center, up) {
    mat4$2.lookAt(this.array, eye.array, center.array, up.array);
    this._dirty = true;
    return this;
  },
  /**
   * Alias for mutiply
   * @param  {clay.Matrix4} b
   * @return {clay.Matrix4}
   */
  mul: function(b) {
    mat4$2.mul(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Alias for multiplyLeft
   * @param  {clay.Matrix4} a
   * @return {clay.Matrix4}
   */
  mulLeft: function(a) {
    mat4$2.mul(this.array, a.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Multiply self and b
   * @param  {clay.Matrix4} b
   * @return {clay.Matrix4}
   */
  multiply: function(b) {
    mat4$2.multiply(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Multiply a and self, a is on the left
   * @param  {clay.Matrix3} a
   * @return {clay.Matrix3}
   */
  multiplyLeft: function(a) {
    mat4$2.multiply(this.array, a.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Set as a orthographic projection matrix
   * @param  {number} left
   * @param  {number} right
   * @param  {number} bottom
   * @param  {number} top
   * @param  {number} near
   * @param  {number} far
   * @return {clay.Matrix4}
   */
  ortho: function(left, right, bottom, top, near, far) {
    mat4$2.ortho(this.array, left, right, bottom, top, near, far);
    this._dirty = true;
    return this;
  },
  /**
   * Set as a perspective projection matrix
   * @param  {number} fovy
   * @param  {number} aspect
   * @param  {number} near
   * @param  {number} far
   * @return {clay.Matrix4}
   */
  perspective: function(fovy, aspect, near, far) {
    mat4$2.perspective(this.array, fovy, aspect, near, far);
    this._dirty = true;
    return this;
  },
  /**
   * Rotate self by rad about axis.
   * Equal to right-multiply a rotaion matrix
   * @param  {number}   rad
   * @param  {clay.Vector3} axis
   * @return {clay.Matrix4}
   */
  rotate: function(rad2, axis) {
    mat4$2.rotate(this.array, this.array, rad2, axis.array);
    this._dirty = true;
    return this;
  },
  /**
   * Rotate self by a given radian about X axis.
   * Equal to right-multiply a rotaion matrix
   * @param {number} rad
   * @return {clay.Matrix4}
   */
  rotateX: function(rad2) {
    mat4$2.rotateX(this.array, this.array, rad2);
    this._dirty = true;
    return this;
  },
  /**
   * Rotate self by a given radian about Y axis.
   * Equal to right-multiply a rotaion matrix
   * @param {number} rad
   * @return {clay.Matrix4}
   */
  rotateY: function(rad2) {
    mat4$2.rotateY(this.array, this.array, rad2);
    this._dirty = true;
    return this;
  },
  /**
   * Rotate self by a given radian about Z axis.
   * Equal to right-multiply a rotaion matrix
   * @param {number} rad
   * @return {clay.Matrix4}
   */
  rotateZ: function(rad2) {
    mat4$2.rotateZ(this.array, this.array, rad2);
    this._dirty = true;
    return this;
  },
  /**
   * Scale self by s
   * Equal to right-multiply a scale matrix
   * @param  {clay.Vector3}  s
   * @return {clay.Matrix4}
   */
  scale: function(v) {
    mat4$2.scale(this.array, this.array, v.array);
    this._dirty = true;
    return this;
  },
  /**
   * Translate self by v.
   * Equal to right-multiply a translate matrix
   * @param  {clay.Vector3}  v
   * @return {clay.Matrix4}
   */
  translate: function(v) {
    mat4$2.translate(this.array, this.array, v.array);
    this._dirty = true;
    return this;
  },
  /**
   * Transpose self, in-place.
   * @return {clay.Matrix2}
   */
  transpose: function() {
    mat4$2.transpose(this.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Decompose a matrix to SRT
   * @param {clay.Vector3} [scale]
   * @param {clay.Quaternion} rotation
   * @param {clay.Vector} position
   * @see http://msdn.microsoft.com/en-us/library/microsoft.xna.framework.matrix.decompose.aspx
   */
  decomposeMatrix: function() {
    var x = vec3$f.create();
    var y = vec3$f.create();
    var z = vec3$f.create();
    var m3 = mat3$1.create();
    return function(scale, rotation, position) {
      var el = this.array;
      vec3$f.set(x, el[0], el[1], el[2]);
      vec3$f.set(y, el[4], el[5], el[6]);
      vec3$f.set(z, el[8], el[9], el[10]);
      var sx = vec3$f.length(x);
      var sy = vec3$f.length(y);
      var sz = vec3$f.length(z);
      var det = this.determinant();
      if (det < 0) {
        sx = -sx;
      }
      if (scale) {
        scale.set(sx, sy, sz);
      }
      position.set(el[12], el[13], el[14]);
      mat3$1.fromMat4(m3, el);
      m3[0] /= sx;
      m3[1] /= sx;
      m3[2] /= sx;
      m3[3] /= sy;
      m3[4] /= sy;
      m3[5] /= sy;
      m3[6] /= sz;
      m3[7] /= sz;
      m3[8] /= sz;
      quat.fromMat3(rotation.array, m3);
      quat.normalize(rotation.array, rotation.array);
      rotation._dirty = true;
      position._dirty = true;
    };
  }(),
  toString: function() {
    return "[" + Array.prototype.join.call(this.array, ",") + "]";
  },
  toArray: function() {
    return Array.prototype.slice.call(this.array);
  }
};
var defineProperty$2 = Object.defineProperty;
if (defineProperty$2) {
  var proto$2 = Matrix4.prototype;
  defineProperty$2(proto$2, "z", {
    get: function() {
      var el = this.array;
      this._axisZ.set(el[8], el[9], el[10]);
      return this._axisZ;
    },
    set: function(v) {
      var el = this.array;
      v = v.array;
      el[8] = v[0];
      el[9] = v[1];
      el[10] = v[2];
      this._dirty = true;
    }
  });
  defineProperty$2(proto$2, "y", {
    get: function() {
      var el = this.array;
      this._axisY.set(el[4], el[5], el[6]);
      return this._axisY;
    },
    set: function(v) {
      var el = this.array;
      v = v.array;
      el[4] = v[0];
      el[5] = v[1];
      el[6] = v[2];
      this._dirty = true;
    }
  });
  defineProperty$2(proto$2, "x", {
    get: function() {
      var el = this.array;
      this._axisX.set(el[0], el[1], el[2]);
      return this._axisX;
    },
    set: function(v) {
      var el = this.array;
      v = v.array;
      el[0] = v[0];
      el[1] = v[1];
      el[2] = v[2];
      this._dirty = true;
    }
  });
}
Matrix4.adjoint = function(out, a) {
  mat4$2.adjoint(out.array, a.array);
  out._dirty = true;
  return out;
};
Matrix4.copy = function(out, a) {
  mat4$2.copy(out.array, a.array);
  out._dirty = true;
  return out;
};
Matrix4.determinant = function(a) {
  return mat4$2.determinant(a.array);
};
Matrix4.identity = function(out) {
  mat4$2.identity(out.array);
  out._dirty = true;
  return out;
};
Matrix4.ortho = function(out, left, right, bottom, top, near, far) {
  mat4$2.ortho(out.array, left, right, bottom, top, near, far);
  out._dirty = true;
  return out;
};
Matrix4.perspective = function(out, fovy, aspect, near, far) {
  mat4$2.perspective(out.array, fovy, aspect, near, far);
  out._dirty = true;
  return out;
};
Matrix4.lookAt = function(out, eye, center, up) {
  mat4$2.lookAt(out.array, eye.array, center.array, up.array);
  out._dirty = true;
  return out;
};
Matrix4.invert = function(out, a) {
  mat4$2.invert(out.array, a.array);
  out._dirty = true;
  return out;
};
Matrix4.mul = function(out, a, b) {
  mat4$2.mul(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Matrix4.multiply = Matrix4.mul;
Matrix4.fromQuat = function(out, q) {
  mat4$2.fromQuat(out.array, q.array);
  out._dirty = true;
  return out;
};
Matrix4.fromRotationTranslation = function(out, q, v) {
  mat4$2.fromRotationTranslation(out.array, q.array, v.array);
  out._dirty = true;
  return out;
};
Matrix4.fromMat2d = function(m4, m2d) {
  m4._dirty = true;
  var m2d = m2d.array;
  var m4 = m4.array;
  m4[0] = m2d[0];
  m4[4] = m2d[2];
  m4[12] = m2d[4];
  m4[1] = m2d[1];
  m4[5] = m2d[3];
  m4[13] = m2d[5];
  return m4;
};
Matrix4.rotate = function(out, a, rad2, axis) {
  mat4$2.rotate(out.array, a.array, rad2, axis.array);
  out._dirty = true;
  return out;
};
Matrix4.rotateX = function(out, a, rad2) {
  mat4$2.rotateX(out.array, a.array, rad2);
  out._dirty = true;
  return out;
};
Matrix4.rotateY = function(out, a, rad2) {
  mat4$2.rotateY(out.array, a.array, rad2);
  out._dirty = true;
  return out;
};
Matrix4.rotateZ = function(out, a, rad2) {
  mat4$2.rotateZ(out.array, a.array, rad2);
  out._dirty = true;
  return out;
};
Matrix4.scale = function(out, a, v) {
  mat4$2.scale(out.array, a.array, v.array);
  out._dirty = true;
  return out;
};
Matrix4.transpose = function(out, a) {
  mat4$2.transpose(out.array, a.array);
  out._dirty = true;
  return out;
};
Matrix4.translate = function(out, a, v) {
  mat4$2.translate(out.array, a.array, v.array);
  out._dirty = true;
  return out;
};
var Quaternion = function(x, y, z, w) {
  x = x || 0;
  y = y || 0;
  z = z || 0;
  w = w === void 0 ? 1 : w;
  this.array = quat.fromValues(x, y, z, w);
  this._dirty = true;
};
Quaternion.prototype = {
  constructor: Quaternion,
  /**
   * Add b to self
   * @param  {clay.Quaternion} b
   * @return {clay.Quaternion}
   */
  add: function(b) {
    quat.add(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Calculate the w component from x, y, z component
   * @return {clay.Quaternion}
   */
  calculateW: function() {
    quat.calculateW(this.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Set x, y and z components
   * @param  {number}  x
   * @param  {number}  y
   * @param  {number}  z
   * @param  {number}  w
   * @return {clay.Quaternion}
   */
  set: function(x, y, z, w) {
    this.array[0] = x;
    this.array[1] = y;
    this.array[2] = z;
    this.array[3] = w;
    this._dirty = true;
    return this;
  },
  /**
   * Set x, y, z and w components from array
   * @param  {Float32Array|number[]} arr
   * @return {clay.Quaternion}
   */
  setArray: function(arr) {
    this.array[0] = arr[0];
    this.array[1] = arr[1];
    this.array[2] = arr[2];
    this.array[3] = arr[3];
    this._dirty = true;
    return this;
  },
  /**
   * Clone a new Quaternion
   * @return {clay.Quaternion}
   */
  clone: function() {
    return new Quaternion(this.x, this.y, this.z, this.w);
  },
  /**
   * Calculates the conjugate of self If the quaternion is normalized,
   * this function is faster than invert and produces the same result.
   *
   * @return {clay.Quaternion}
   */
  conjugate: function() {
    quat.conjugate(this.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Copy from b
   * @param  {clay.Quaternion} b
   * @return {clay.Quaternion}
   */
  copy: function(b) {
    quat.copy(this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Dot product of self and b
   * @param  {clay.Quaternion} b
   * @return {number}
   */
  dot: function(b) {
    return quat.dot(this.array, b.array);
  },
  /**
   * Set from the given 3x3 rotation matrix
   * @param  {clay.Matrix3} m
   * @return {clay.Quaternion}
   */
  fromMat3: function(m) {
    quat.fromMat3(this.array, m.array);
    this._dirty = true;
    return this;
  },
  /**
   * Set from the given 4x4 rotation matrix
   * The 4th column and 4th row will be droped
   * @param  {clay.Matrix4} m
   * @return {clay.Quaternion}
   */
  fromMat4: function() {
    var m3 = mat3$1.create();
    return function(m) {
      mat3$1.fromMat4(m3, m.array);
      mat3$1.transpose(m3, m3);
      quat.fromMat3(this.array, m3);
      this._dirty = true;
      return this;
    };
  }(),
  /**
   * Set to identity quaternion
   * @return {clay.Quaternion}
   */
  identity: function() {
    quat.identity(this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Invert self
   * @return {clay.Quaternion}
   */
  invert: function() {
    quat.invert(this.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Alias of length
   * @return {number}
   */
  len: function() {
    return quat.len(this.array);
  },
  /**
   * Calculate the length
   * @return {number}
   */
  length: function() {
    return quat.length(this.array);
  },
  /**
   * Linear interpolation between a and b
   * @param  {clay.Quaternion} a
   * @param  {clay.Quaternion} b
   * @param  {number}  t
   * @return {clay.Quaternion}
   */
  lerp: function(a, b, t) {
    quat.lerp(this.array, a.array, b.array, t);
    this._dirty = true;
    return this;
  },
  /**
   * Alias for multiply
   * @param  {clay.Quaternion} b
   * @return {clay.Quaternion}
   */
  mul: function(b) {
    quat.mul(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Alias for multiplyLeft
   * @param  {clay.Quaternion} a
   * @return {clay.Quaternion}
   */
  mulLeft: function(a) {
    quat.multiply(this.array, a.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Mutiply self and b
   * @param  {clay.Quaternion} b
   * @return {clay.Quaternion}
   */
  multiply: function(b) {
    quat.multiply(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Mutiply a and self
   * Quaternion mutiply is not commutative, so the result of mutiplyLeft is different with multiply.
   * @param  {clay.Quaternion} a
   * @return {clay.Quaternion}
   */
  multiplyLeft: function(a) {
    quat.multiply(this.array, a.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Normalize self
   * @return {clay.Quaternion}
   */
  normalize: function() {
    quat.normalize(this.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Rotate self by a given radian about X axis
   * @param {number} rad
   * @return {clay.Quaternion}
   */
  rotateX: function(rad2) {
    quat.rotateX(this.array, this.array, rad2);
    this._dirty = true;
    return this;
  },
  /**
   * Rotate self by a given radian about Y axis
   * @param {number} rad
   * @return {clay.Quaternion}
   */
  rotateY: function(rad2) {
    quat.rotateY(this.array, this.array, rad2);
    this._dirty = true;
    return this;
  },
  /**
   * Rotate self by a given radian about Z axis
   * @param {number} rad
   * @return {clay.Quaternion}
   */
  rotateZ: function(rad2) {
    quat.rotateZ(this.array, this.array, rad2);
    this._dirty = true;
    return this;
  },
  /**
   * Sets self to represent the shortest rotation from Vector3 a to Vector3 b.
   * a and b needs to be normalized
   * @param  {clay.Vector3} a
   * @param  {clay.Vector3} b
   * @return {clay.Quaternion}
   */
  rotationTo: function(a, b) {
    quat.rotationTo(this.array, a.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Sets self with values corresponding to the given axes
   * @param {clay.Vector3} view
   * @param {clay.Vector3} right
   * @param {clay.Vector3} up
   * @return {clay.Quaternion}
   */
  setAxes: function(view, right, up) {
    quat.setAxes(this.array, view.array, right.array, up.array);
    this._dirty = true;
    return this;
  },
  /**
   * Sets self with a rotation axis and rotation angle
   * @param {clay.Vector3} axis
   * @param {number} rad
   * @return {clay.Quaternion}
   */
  setAxisAngle: function(axis, rad2) {
    quat.setAxisAngle(this.array, axis.array, rad2);
    this._dirty = true;
    return this;
  },
  /**
   * Perform spherical linear interpolation between a and b
   * @param  {clay.Quaternion} a
   * @param  {clay.Quaternion} b
   * @param  {number} t
   * @return {clay.Quaternion}
   */
  slerp: function(a, b, t) {
    quat.slerp(this.array, a.array, b.array, t);
    this._dirty = true;
    return this;
  },
  /**
   * Alias for squaredLength
   * @return {number}
   */
  sqrLen: function() {
    return quat.sqrLen(this.array);
  },
  /**
   * Squared length of self
   * @return {number}
   */
  squaredLength: function() {
    return quat.squaredLength(this.array);
  },
  /**
   * Set from euler
   * @param {clay.Vector3} v
   * @param {String} order
   */
  fromEuler: function(v, order) {
    return Quaternion.fromEuler(this, v, order);
  },
  toString: function() {
    return "[" + Array.prototype.join.call(this.array, ",") + "]";
  },
  toArray: function() {
    return Array.prototype.slice.call(this.array);
  }
};
var defineProperty$1 = Object.defineProperty;
if (defineProperty$1) {
  var proto$1 = Quaternion.prototype;
  defineProperty$1(proto$1, "x", {
    get: function() {
      return this.array[0];
    },
    set: function(value) {
      this.array[0] = value;
      this._dirty = true;
    }
  });
  defineProperty$1(proto$1, "y", {
    get: function() {
      return this.array[1];
    },
    set: function(value) {
      this.array[1] = value;
      this._dirty = true;
    }
  });
  defineProperty$1(proto$1, "z", {
    get: function() {
      return this.array[2];
    },
    set: function(value) {
      this.array[2] = value;
      this._dirty = true;
    }
  });
  defineProperty$1(proto$1, "w", {
    get: function() {
      return this.array[3];
    },
    set: function(value) {
      this.array[3] = value;
      this._dirty = true;
    }
  });
}
Quaternion.add = function(out, a, b) {
  quat.add(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Quaternion.set = function(out, x, y, z, w) {
  quat.set(out.array, x, y, z, w);
  out._dirty = true;
};
Quaternion.copy = function(out, b) {
  quat.copy(out.array, b.array);
  out._dirty = true;
  return out;
};
Quaternion.calculateW = function(out, a) {
  quat.calculateW(out.array, a.array);
  out._dirty = true;
  return out;
};
Quaternion.conjugate = function(out, a) {
  quat.conjugate(out.array, a.array);
  out._dirty = true;
  return out;
};
Quaternion.identity = function(out) {
  quat.identity(out.array);
  out._dirty = true;
  return out;
};
Quaternion.invert = function(out, a) {
  quat.invert(out.array, a.array);
  out._dirty = true;
  return out;
};
Quaternion.dot = function(a, b) {
  return quat.dot(a.array, b.array);
};
Quaternion.len = function(a) {
  return quat.length(a.array);
};
Quaternion.lerp = function(out, a, b, t) {
  quat.lerp(out.array, a.array, b.array, t);
  out._dirty = true;
  return out;
};
Quaternion.slerp = function(out, a, b, t) {
  quat.slerp(out.array, a.array, b.array, t);
  out._dirty = true;
  return out;
};
Quaternion.mul = function(out, a, b) {
  quat.multiply(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Quaternion.multiply = Quaternion.mul;
Quaternion.rotateX = function(out, a, rad2) {
  quat.rotateX(out.array, a.array, rad2);
  out._dirty = true;
  return out;
};
Quaternion.rotateY = function(out, a, rad2) {
  quat.rotateY(out.array, a.array, rad2);
  out._dirty = true;
  return out;
};
Quaternion.rotateZ = function(out, a, rad2) {
  quat.rotateZ(out.array, a.array, rad2);
  out._dirty = true;
  return out;
};
Quaternion.setAxisAngle = function(out, axis, rad2) {
  quat.setAxisAngle(out.array, axis.array, rad2);
  out._dirty = true;
  return out;
};
Quaternion.normalize = function(out, a) {
  quat.normalize(out.array, a.array);
  out._dirty = true;
  return out;
};
Quaternion.sqrLen = function(a) {
  return quat.sqrLen(a.array);
};
Quaternion.squaredLength = Quaternion.sqrLen;
Quaternion.fromMat3 = function(out, m) {
  quat.fromMat3(out.array, m.array);
  out._dirty = true;
  return out;
};
Quaternion.setAxes = function(out, view, right, up) {
  quat.setAxes(out.array, view.array, right.array, up.array);
  out._dirty = true;
  return out;
};
Quaternion.rotationTo = function(out, a, b) {
  quat.rotationTo(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Quaternion.fromEuler = function(out, v, order) {
  out._dirty = true;
  v = v.array;
  var target = out.array;
  var c1 = Math.cos(v[0] / 2);
  var c2 = Math.cos(v[1] / 2);
  var c3 = Math.cos(v[2] / 2);
  var s1 = Math.sin(v[0] / 2);
  var s2 = Math.sin(v[1] / 2);
  var s3 = Math.sin(v[2] / 2);
  var order = (order || "XYZ").toUpperCase();
  switch (order) {
    case "XYZ":
      target[0] = s1 * c2 * c3 + c1 * s2 * s3;
      target[1] = c1 * s2 * c3 - s1 * c2 * s3;
      target[2] = c1 * c2 * s3 + s1 * s2 * c3;
      target[3] = c1 * c2 * c3 - s1 * s2 * s3;
      break;
    case "YXZ":
      target[0] = s1 * c2 * c3 + c1 * s2 * s3;
      target[1] = c1 * s2 * c3 - s1 * c2 * s3;
      target[2] = c1 * c2 * s3 - s1 * s2 * c3;
      target[3] = c1 * c2 * c3 + s1 * s2 * s3;
      break;
    case "ZXY":
      target[0] = s1 * c2 * c3 - c1 * s2 * s3;
      target[1] = c1 * s2 * c3 + s1 * c2 * s3;
      target[2] = c1 * c2 * s3 + s1 * s2 * c3;
      target[3] = c1 * c2 * c3 - s1 * s2 * s3;
      break;
    case "ZYX":
      target[0] = s1 * c2 * c3 - c1 * s2 * s3;
      target[1] = c1 * s2 * c3 + s1 * c2 * s3;
      target[2] = c1 * c2 * s3 - s1 * s2 * c3;
      target[3] = c1 * c2 * c3 + s1 * s2 * s3;
      break;
    case "YZX":
      target[0] = s1 * c2 * c3 + c1 * s2 * s3;
      target[1] = c1 * s2 * c3 + s1 * c2 * s3;
      target[2] = c1 * c2 * s3 - s1 * s2 * c3;
      target[3] = c1 * c2 * c3 - s1 * s2 * s3;
      break;
    case "XZY":
      target[0] = s1 * c2 * c3 - c1 * s2 * s3;
      target[1] = c1 * s2 * c3 - s1 * c2 * s3;
      target[2] = c1 * c2 * s3 + s1 * s2 * c3;
      target[3] = c1 * c2 * c3 + s1 * s2 * s3;
      break;
  }
};
var vec3Set$2 = vec3$f.set;
var vec3Copy$1 = vec3$f.copy;
var BoundingBox = function(min, max) {
  this.min = min || new Vector3(Infinity, Infinity, Infinity);
  this.max = max || new Vector3(-Infinity, -Infinity, -Infinity);
  this.vertices = null;
};
BoundingBox.prototype = {
  constructor: BoundingBox,
  /**
   * Update min and max coords from a vertices array
   * @param  {array} vertices
   */
  updateFromVertices: function(vertices) {
    if (vertices.length > 0) {
      var min = this.min;
      var max = this.max;
      var minArr = min.array;
      var maxArr = max.array;
      vec3Copy$1(minArr, vertices[0]);
      vec3Copy$1(maxArr, vertices[0]);
      for (var i = 1; i < vertices.length; i++) {
        var vertex = vertices[i];
        if (vertex[0] < minArr[0]) {
          minArr[0] = vertex[0];
        }
        if (vertex[1] < minArr[1]) {
          minArr[1] = vertex[1];
        }
        if (vertex[2] < minArr[2]) {
          minArr[2] = vertex[2];
        }
        if (vertex[0] > maxArr[0]) {
          maxArr[0] = vertex[0];
        }
        if (vertex[1] > maxArr[1]) {
          maxArr[1] = vertex[1];
        }
        if (vertex[2] > maxArr[2]) {
          maxArr[2] = vertex[2];
        }
      }
      min._dirty = true;
      max._dirty = true;
    }
  },
  /**
   * Union operation with another bounding box
   * @param  {clay.BoundingBox} bbox
   */
  union: function(bbox) {
    var min = this.min;
    var max = this.max;
    vec3$f.min(min.array, min.array, bbox.min.array);
    vec3$f.max(max.array, max.array, bbox.max.array);
    min._dirty = true;
    max._dirty = true;
    return this;
  },
  /**
   * Intersection operation with another bounding box
   * @param  {clay.BoundingBox} bbox
   */
  intersection: function(bbox) {
    var min = this.min;
    var max = this.max;
    vec3$f.max(min.array, min.array, bbox.min.array);
    vec3$f.min(max.array, max.array, bbox.max.array);
    min._dirty = true;
    max._dirty = true;
    return this;
  },
  /**
   * If intersect with another bounding box
   * @param  {clay.BoundingBox} bbox
   * @return {boolean}
   */
  intersectBoundingBox: function(bbox) {
    var _min = this.min.array;
    var _max = this.max.array;
    var _min2 = bbox.min.array;
    var _max2 = bbox.max.array;
    return !(_min[0] > _max2[0] || _min[1] > _max2[1] || _min[2] > _max2[2] || _max[0] < _min2[0] || _max[1] < _min2[1] || _max[2] < _min2[2]);
  },
  /**
   * If contain another bounding box entirely
   * @param  {clay.BoundingBox} bbox
   * @return {boolean}
   */
  containBoundingBox: function(bbox) {
    var _min = this.min.array;
    var _max = this.max.array;
    var _min2 = bbox.min.array;
    var _max2 = bbox.max.array;
    return _min[0] <= _min2[0] && _min[1] <= _min2[1] && _min[2] <= _min2[2] && _max[0] >= _max2[0] && _max[1] >= _max2[1] && _max[2] >= _max2[2];
  },
  /**
   * If contain point entirely
   * @param  {clay.Vector3} point
   * @return {boolean}
   */
  containPoint: function(p) {
    var _min = this.min.array;
    var _max = this.max.array;
    var _p = p.array;
    return _min[0] <= _p[0] && _min[1] <= _p[1] && _min[2] <= _p[2] && _max[0] >= _p[0] && _max[1] >= _p[1] && _max[2] >= _p[2];
  },
  /**
   * If bounding box is finite
   */
  isFinite: function() {
    var _min = this.min.array;
    var _max = this.max.array;
    return isFinite(_min[0]) && isFinite(_min[1]) && isFinite(_min[2]) && isFinite(_max[0]) && isFinite(_max[1]) && isFinite(_max[2]);
  },
  /**
   * Apply an affine transform matrix to the bounding box
   * @param  {clay.Matrix4} matrix
   */
  applyTransform: function(matrix) {
    this.transformFrom(this, matrix);
  },
  /**
   * Get from another bounding box and an affine transform matrix.
   * @param {clay.BoundingBox} source
   * @param {clay.Matrix4} matrix
   */
  transformFrom: function() {
    var xa = vec3$f.create();
    var xb = vec3$f.create();
    var ya = vec3$f.create();
    var yb = vec3$f.create();
    var za = vec3$f.create();
    var zb = vec3$f.create();
    return function(source, matrix) {
      var min = source.min.array;
      var max = source.max.array;
      var m = matrix.array;
      xa[0] = m[0] * min[0];
      xa[1] = m[1] * min[0];
      xa[2] = m[2] * min[0];
      xb[0] = m[0] * max[0];
      xb[1] = m[1] * max[0];
      xb[2] = m[2] * max[0];
      ya[0] = m[4] * min[1];
      ya[1] = m[5] * min[1];
      ya[2] = m[6] * min[1];
      yb[0] = m[4] * max[1];
      yb[1] = m[5] * max[1];
      yb[2] = m[6] * max[1];
      za[0] = m[8] * min[2];
      za[1] = m[9] * min[2];
      za[2] = m[10] * min[2];
      zb[0] = m[8] * max[2];
      zb[1] = m[9] * max[2];
      zb[2] = m[10] * max[2];
      min = this.min.array;
      max = this.max.array;
      min[0] = Math.min(xa[0], xb[0]) + Math.min(ya[0], yb[0]) + Math.min(za[0], zb[0]) + m[12];
      min[1] = Math.min(xa[1], xb[1]) + Math.min(ya[1], yb[1]) + Math.min(za[1], zb[1]) + m[13];
      min[2] = Math.min(xa[2], xb[2]) + Math.min(ya[2], yb[2]) + Math.min(za[2], zb[2]) + m[14];
      max[0] = Math.max(xa[0], xb[0]) + Math.max(ya[0], yb[0]) + Math.max(za[0], zb[0]) + m[12];
      max[1] = Math.max(xa[1], xb[1]) + Math.max(ya[1], yb[1]) + Math.max(za[1], zb[1]) + m[13];
      max[2] = Math.max(xa[2], xb[2]) + Math.max(ya[2], yb[2]) + Math.max(za[2], zb[2]) + m[14];
      this.min._dirty = true;
      this.max._dirty = true;
      return this;
    };
  }(),
  /**
   * Apply a projection matrix to the bounding box
   * @param  {clay.Matrix4} matrix
   */
  applyProjection: function(matrix) {
    var min = this.min.array;
    var max = this.max.array;
    var m = matrix.array;
    var v10 = min[0];
    var v11 = min[1];
    var v12 = min[2];
    var v20 = max[0];
    var v21 = max[1];
    var v22 = min[2];
    var v30 = max[0];
    var v31 = max[1];
    var v32 = max[2];
    if (m[15] === 1) {
      min[0] = m[0] * v10 + m[12];
      min[1] = m[5] * v11 + m[13];
      max[2] = m[10] * v12 + m[14];
      max[0] = m[0] * v30 + m[12];
      max[1] = m[5] * v31 + m[13];
      min[2] = m[10] * v32 + m[14];
    } else {
      var w = -1 / v12;
      min[0] = m[0] * v10 * w;
      min[1] = m[5] * v11 * w;
      max[2] = (m[10] * v12 + m[14]) * w;
      w = -1 / v22;
      max[0] = m[0] * v20 * w;
      max[1] = m[5] * v21 * w;
      w = -1 / v32;
      min[2] = (m[10] * v32 + m[14]) * w;
    }
    this.min._dirty = true;
    this.max._dirty = true;
    return this;
  },
  updateVertices: function() {
    var vertices = this.vertices;
    if (!vertices) {
      vertices = [];
      for (var i = 0; i < 8; i++) {
        vertices[i] = vec3$f.fromValues(0, 0, 0);
      }
      this.vertices = vertices;
    }
    var min = this.min.array;
    var max = this.max.array;
    vec3Set$2(vertices[0], min[0], min[1], min[2]);
    vec3Set$2(vertices[1], min[0], max[1], min[2]);
    vec3Set$2(vertices[2], max[0], min[1], min[2]);
    vec3Set$2(vertices[3], max[0], max[1], min[2]);
    vec3Set$2(vertices[4], min[0], min[1], max[2]);
    vec3Set$2(vertices[5], min[0], max[1], max[2]);
    vec3Set$2(vertices[6], max[0], min[1], max[2]);
    vec3Set$2(vertices[7], max[0], max[1], max[2]);
    return this;
  },
  /**
   * Copy values from another bounding box
   * @param  {clay.BoundingBox} bbox
   */
  copy: function(bbox) {
    var min = this.min;
    var max = this.max;
    vec3Copy$1(min.array, bbox.min.array);
    vec3Copy$1(max.array, bbox.max.array);
    min._dirty = true;
    max._dirty = true;
    return this;
  },
  /**
   * Clone a new bounding box
   * @return {clay.BoundingBox}
   */
  clone: function() {
    var boundingBox = new BoundingBox();
    boundingBox.copy(this);
    return boundingBox;
  }
};
var nameId = 0;
var Node$1 = Base.extend(
  /** @lends clay.Node# */
  {
    /**
     * Scene node name
     * @type {string}
     */
    name: "",
    /**
     * Position relative to its parent node. aka translation.
     * @type {clay.Vector3}
     */
    position: null,
    /**
     * Rotation relative to its parent node. Represented by a quaternion
     * @type {clay.Quaternion}
     */
    rotation: null,
    /**
     * Scale relative to its parent node
     * @type {clay.Vector3}
     */
    scale: null,
    /**
     * Affine transform matrix relative to its root scene.
     * @type {clay.Matrix4}
     */
    worldTransform: null,
    /**
     * Affine transform matrix relative to its parent node.
     * Composited with position, rotation and scale.
     * @type {clay.Matrix4}
     */
    localTransform: null,
    /**
     * If the local transform is update from SRT(scale, rotation, translation, which is position here) each frame
     * @type {boolean}
     */
    autoUpdateLocalTransform: true,
    /**
     * Parent of current scene node
     * @type {?clay.Node}
     * @private
     */
    _parent: null,
    /**
     * The root scene mounted. Null if it is a isolated node
     * @type {?clay.Scene}
     * @private
     */
    _scene: null,
    /**
     * @type {boolean}
     * @private
     */
    _needsUpdateWorldTransform: true,
    /**
     * @type {boolean}
     * @private
     */
    _inIterating: false,
    // Depth for transparent list sorting
    __depth: 0
  },
  function() {
    if (!this.name) {
      this.name = (this.type || "NODE") + "_" + nameId++;
    }
    if (!this.position) {
      this.position = new Vector3();
    }
    if (!this.rotation) {
      this.rotation = new Quaternion();
    }
    if (!this.scale) {
      this.scale = new Vector3(1, 1, 1);
    }
    this.worldTransform = new Matrix4();
    this.localTransform = new Matrix4();
    this._children = [];
  },
  /**@lends clay.Node.prototype. */
  {
    /**
     * @type {?clay.Vector3}
     * @instance
     */
    target: null,
    /**
     * If node and its chilren invisible
     * @type {boolean}
     * @instance
     */
    invisible: false,
    /**
     * If Node is a skinned mesh
     * @return {boolean}
     */
    isSkinnedMesh: function() {
      return false;
    },
    /**
     * Return true if it is a renderable scene node, like Mesh and ParticleSystem
     * @return {boolean}
     */
    isRenderable: function() {
      return false;
    },
    /**
     * Set the name of the scene node
     * @param {string} name
     */
    setName: function(name) {
      var scene = this._scene;
      if (scene) {
        var nodeRepository = scene._nodeRepository;
        delete nodeRepository[this.name];
        nodeRepository[name] = this;
      }
      this.name = name;
    },
    /**
     * Add a child node
     * @param {clay.Node} node
     */
    add: function(node) {
      var originalParent = node._parent;
      if (originalParent === this) {
        return;
      }
      if (originalParent) {
        originalParent.remove(node);
      }
      node._parent = this;
      this._children.push(node);
      var scene = this._scene;
      if (scene && scene !== node.scene) {
        node.traverse(this._addSelfToScene, this);
      }
      node._needsUpdateWorldTransform = true;
    },
    /**
     * Remove the given child scene node
     * @param {clay.Node} node
     */
    remove: function(node) {
      var children = this._children;
      var idx = children.indexOf(node);
      if (idx < 0) {
        return;
      }
      children.splice(idx, 1);
      node._parent = null;
      if (this._scene) {
        node.traverse(this._removeSelfFromScene, this);
      }
    },
    /**
     * Remove all children
     */
    removeAll: function() {
      var children = this._children;
      for (var idx = 0; idx < children.length; idx++) {
        children[idx]._parent = null;
        if (this._scene) {
          children[idx].traverse(this._removeSelfFromScene, this);
        }
      }
      this._children = [];
    },
    /**
     * Get the scene mounted
     * @return {clay.Scene}
     */
    getScene: function() {
      return this._scene;
    },
    /**
     * Get parent node
     * @return {clay.Scene}
     */
    getParent: function() {
      return this._parent;
    },
    _removeSelfFromScene: function(descendant) {
      descendant._scene.removeFromScene(descendant);
      descendant._scene = null;
    },
    _addSelfToScene: function(descendant) {
      this._scene.addToScene(descendant);
      descendant._scene = this._scene;
    },
    /**
     * Return true if it is ancestor of the given scene node
     * @param {clay.Node} node
     */
    isAncestor: function(node) {
      var parent = node._parent;
      while (parent) {
        if (parent === this) {
          return true;
        }
        parent = parent._parent;
      }
      return false;
    },
    /**
     * Get a new created array of all children nodes
     * @return {clay.Node[]}
     */
    children: function() {
      return this._children.slice();
    },
    /**
     * Get child scene node at given index.
     * @param {number} idx
     * @return {clay.Node}
     */
    childAt: function(idx) {
      return this._children[idx];
    },
    /**
     * Get first child with the given name
     * @param {string} name
     * @return {clay.Node}
     */
    getChildByName: function(name) {
      var children = this._children;
      for (var i = 0; i < children.length; i++) {
        if (children[i].name === name) {
          return children[i];
        }
      }
    },
    /**
     * Get first descendant have the given name
     * @param {string} name
     * @return {clay.Node}
     */
    getDescendantByName: function(name) {
      var children = this._children;
      for (var i = 0; i < children.length; i++) {
        var child = children[i];
        if (child.name === name) {
          return child;
        } else {
          var res = child.getDescendantByName(name);
          if (res) {
            return res;
          }
        }
      }
    },
    /**
     * Query descendant node by path
     * @param {string} path
     * @return {clay.Node}
     * @example
     *  node.queryNode('root/parent/child');
     */
    queryNode: function(path) {
      if (!path) {
        return;
      }
      var pathArr = path.split("/");
      var current = this;
      for (var i = 0; i < pathArr.length; i++) {
        var name = pathArr[i];
        if (!name) {
          continue;
        }
        var found = false;
        var children = current._children;
        for (var j = 0; j < children.length; j++) {
          var child = children[j];
          if (child.name === name) {
            current = child;
            found = true;
            break;
          }
        }
        if (!found) {
          return;
        }
      }
      return current;
    },
    /**
     * Get query path, relative to rootNode(default is scene)
     * @param {clay.Node} [rootNode]
     * @return {string}
     */
    getPath: function(rootNode) {
      if (!this._parent) {
        return "/";
      }
      var current = this._parent;
      var path = this.name;
      while (current._parent) {
        path = current.name + "/" + path;
        if (current._parent == rootNode) {
          break;
        }
        current = current._parent;
      }
      if (!current._parent && rootNode) {
        return null;
      }
      return path;
    },
    /**
     * Depth first traverse all its descendant scene nodes.
     *
     * **WARN** Don't do `add`, `remove` operation in the callback during traverse.
     * @param {Function} callback
     * @param {Node} [context]
     */
    traverse: function(callback, context) {
      callback.call(context, this);
      var _children = this._children;
      for (var i = 0, len = _children.length; i < len; i++) {
        _children[i].traverse(callback, context);
      }
    },
    /**
     * Traverse all children nodes.
     *
     * **WARN** DON'T do `add`, `remove` operation in the callback during iteration.
     *
     * @param {Function} callback
     * @param {Node} [context]
     */
    eachChild: function(callback, context) {
      var _children = this._children;
      for (var i = 0, len = _children.length; i < len; i++) {
        var child = _children[i];
        callback.call(context, child, i);
      }
    },
    /**
     * Set the local transform and decompose to SRT
     * @param {clay.Matrix4} matrix
     */
    setLocalTransform: function(matrix) {
      mat4$2.copy(this.localTransform.array, matrix.array);
      this.decomposeLocalTransform();
    },
    /**
     * Decompose the local transform to SRT
     */
    decomposeLocalTransform: function(keepScale) {
      var scale = !keepScale ? this.scale : null;
      this.localTransform.decomposeMatrix(scale, this.rotation, this.position);
    },
    /**
     * Set the world transform and decompose to SRT
     * @param {clay.Matrix4} matrix
     */
    setWorldTransform: function(matrix) {
      mat4$2.copy(this.worldTransform.array, matrix.array);
      this.decomposeWorldTransform();
    },
    /**
     * Decompose the world transform to SRT
     * @function
     */
    decomposeWorldTransform: function() {
      var tmp = mat4$2.create();
      return function(keepScale) {
        var localTransform = this.localTransform;
        var worldTransform = this.worldTransform;
        if (this._parent) {
          mat4$2.invert(tmp, this._parent.worldTransform.array);
          mat4$2.multiply(localTransform.array, tmp, worldTransform.array);
        } else {
          mat4$2.copy(localTransform.array, worldTransform.array);
        }
        var scale = !keepScale ? this.scale : null;
        localTransform.decomposeMatrix(scale, this.rotation, this.position);
      };
    }(),
    transformNeedsUpdate: function() {
      return this.position._dirty || this.rotation._dirty || this.scale._dirty;
    },
    /**
     * Update local transform from SRT
     * Notice that local transform will not be updated if _dirty mark of position, rotation, scale is all false
     */
    updateLocalTransform: function() {
      var position = this.position;
      var rotation = this.rotation;
      var scale = this.scale;
      if (this.transformNeedsUpdate()) {
        var m = this.localTransform.array;
        mat4$2.fromRotationTranslation(m, rotation.array, position.array);
        mat4$2.scale(m, m, scale.array);
        rotation._dirty = false;
        scale._dirty = false;
        position._dirty = false;
        this._needsUpdateWorldTransform = true;
      }
    },
    /**
     * Update world transform, assume its parent world transform have been updated
     * @private
     */
    _updateWorldTransformTopDown: function() {
      var localTransform = this.localTransform.array;
      var worldTransform = this.worldTransform.array;
      if (this._parent) {
        mat4$2.multiplyAffine(
          worldTransform,
          this._parent.worldTransform.array,
          localTransform
        );
      } else {
        mat4$2.copy(worldTransform, localTransform);
      }
    },
    /**
     * Update world transform before whole scene is updated.
     */
    updateWorldTransform: function() {
      var rootNodeIsDirty = this;
      while (rootNodeIsDirty && rootNodeIsDirty.getParent() && rootNodeIsDirty.getParent().transformNeedsUpdate()) {
        rootNodeIsDirty = rootNodeIsDirty.getParent();
      }
      rootNodeIsDirty.update();
    },
    /**
     * Update local transform and world transform recursively
     * @param {boolean} forceUpdateWorld
     */
    update: function(forceUpdateWorld) {
      if (this.autoUpdateLocalTransform) {
        this.updateLocalTransform();
      } else {
        forceUpdateWorld = true;
      }
      if (forceUpdateWorld || this._needsUpdateWorldTransform) {
        this._updateWorldTransformTopDown();
        forceUpdateWorld = true;
        this._needsUpdateWorldTransform = false;
      }
      var children = this._children;
      for (var i = 0, len = children.length; i < len; i++) {
        children[i].update(forceUpdateWorld);
      }
    },
    /**
     * Get bounding box of node
     * @param  {Function} [filter]
     * @param  {clay.BoundingBox} [out]
     * @return {clay.BoundingBox}
     */
    // TODO Skinning
    getBoundingBox: function() {
      function defaultFilter(el) {
        return !el.invisible && el.geometry;
      }
      var tmpBBox = new BoundingBox();
      var tmpMat4 = new Matrix4();
      var invWorldTransform = new Matrix4();
      return function(filter, out) {
        out = out || new BoundingBox();
        if (this._parent) {
          Matrix4.invert(invWorldTransform, this._parent.worldTransform);
        } else {
          Matrix4.identity(invWorldTransform);
        }
        this.traverse(function(mesh2) {
          if (mesh2.geometry && mesh2.geometry.boundingBox) {
            tmpBBox.copy(mesh2.geometry.boundingBox);
            Matrix4.multiply(tmpMat4, invWorldTransform, mesh2.worldTransform);
            tmpBBox.applyTransform(tmpMat4);
            out.union(tmpBBox);
          }
        }, this, defaultFilter);
        return out;
      };
    }(),
    /**
     * Get world position, extracted from world transform
     * @param  {clay.Vector3} [out]
     * @return {clay.Vector3}
     */
    getWorldPosition: function(out) {
      if (this.transformNeedsUpdate()) {
        this.updateWorldTransform();
      }
      var m = this.worldTransform.array;
      if (out) {
        var arr = out.array;
        arr[0] = m[12];
        arr[1] = m[13];
        arr[2] = m[14];
        return out;
      } else {
        return new Vector3(m[12], m[13], m[14]);
      }
    },
    /**
     * Clone a new node
     * @return {Node}
     */
    clone: function() {
      var node = new this.constructor();
      var children = this._children;
      node.setName(this.name);
      node.position.copy(this.position);
      node.rotation.copy(this.rotation);
      node.scale.copy(this.scale);
      for (var i = 0; i < children.length; i++) {
        node.add(children[i].clone());
      }
      return node;
    },
    /**
     * Rotate the node around a axis by angle degrees, axis passes through point
     * @param {clay.Vector3} point Center point
     * @param {clay.Vector3} axis  Center axis
     * @param {number}       angle Rotation angle
     * @see http://docs.unity3d.com/Documentation/ScriptReference/Transform.RotateAround.html
     * @function
     */
    rotateAround: function() {
      var v = new Vector3();
      var RTMatrix = new Matrix4();
      return function(point, axis, angle) {
        v.copy(this.position).subtract(point);
        var localTransform = this.localTransform;
        localTransform.identity();
        localTransform.translate(point);
        localTransform.rotate(angle, axis);
        RTMatrix.fromRotationTranslation(this.rotation, v);
        localTransform.multiply(RTMatrix);
        localTransform.scale(this.scale);
        this.decomposeLocalTransform();
        this._needsUpdateWorldTransform = true;
      };
    }(),
    /**
     * @param {clay.Vector3} target
     * @param {clay.Vector3} [up]
     * @see http://www.opengl.org/sdk/docs/man2/xhtml/gluLookAt.xml
     * @function
     */
    lookAt: function() {
      var m = new Matrix4();
      return function(target, up) {
        m.lookAt(this.position, target, up || this.localTransform.y).invert();
        this.setLocalTransform(m);
        this.target = target;
      };
    }()
  }
);
var Renderable = Node$1.extend(
  /** @lends clay.Renderable# */
  {
    /**
     * @type {clay.Material}
     */
    material: null,
    /**
     * @type {clay.Geometry}
     */
    geometry: null,
    /**
     * @type {number}
     */
    mode: glenum.TRIANGLES,
    _renderInfo: null
  },
  /** @lends clay.Renderable.prototype */
  {
    __program: null,
    /**
     * Group of received light.
     */
    lightGroup: 0,
    /**
     * Render order, Nodes with smaller value renders before nodes with larger values.
     * @type {Number}
     */
    renderOrder: 0,
    /**
     * Used when mode is LINES, LINE_STRIP or LINE_LOOP
     * @type {number}
     */
    // lineWidth: 1,
    /**
     * If enable culling
     * @type {boolean}
     */
    culling: true,
    /**
     * Specify which side of polygon will be culled.
     * Possible values:
     *  + {@link clay.Renderable.BACK}
     *  + {@link clay.Renderable.FRONT}
     *  + {@link clay.Renderable.FRONT_AND_BACK}
     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebGLRenderingContext/cullFace
     * @type {number}
     */
    cullFace: glenum.BACK,
    /**
     * Specify which side is front face.
     * Possible values:
     *  + {@link clay.Renderable.CW}
     *  + {@link clay.Renderable.CCW}
     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebGLRenderingContext/frontFace
     * @type {number}
     */
    frontFace: glenum.CCW,
    /**
     * If enable software frustum culling
     * @type {boolean}
     */
    frustumCulling: true,
    /**
     * @type {boolean}
     */
    receiveShadow: true,
    /**
     * @type {boolean}
     */
    castShadow: true,
    /**
     * @type {boolean}
     */
    ignorePicking: false,
    /**
     * @type {boolean}
     */
    ignorePreZ: false,
    /**
     * @type {boolean}
     */
    ignoreGBuffer: false,
    /**
     * @return {boolean}
     */
    isRenderable: function() {
      return this.geometry && this.material && this.material.shader && !this.invisible && this.geometry.vertexCount > 0;
    },
    /**
     * Before render hook
     * @type {Function}
     */
    beforeRender: function(_gl) {
    },
    /**
     * Before render hook
     * @type {Function}
     */
    afterRender: function(_gl, renderStat) {
    },
    getBoundingBox: function(filter, out) {
      out = Node$1.prototype.getBoundingBox.call(this, filter, out);
      if (this.geometry && this.geometry.boundingBox) {
        out.union(this.geometry.boundingBox);
      }
      return out;
    },
    /**
     * Clone a new renderable
     * @function
     * @return {clay.Renderable}
     */
    clone: /* @__PURE__ */ function() {
      var properties = [
        "castShadow",
        "receiveShadow",
        "mode",
        "culling",
        "cullFace",
        "frontFace",
        "frustumCulling",
        "renderOrder",
        "lineWidth",
        "ignorePicking",
        "ignorePreZ",
        "ignoreGBuffer"
      ];
      return function() {
        var renderable = Node$1.prototype.clone.call(this);
        renderable.geometry = this.geometry;
        renderable.material = this.material;
        for (var i = 0; i < properties.length; i++) {
          var name = properties[i];
          if (renderable[name] !== this[name]) {
            renderable[name] = this[name];
          }
        }
        return renderable;
      };
    }()
  }
);
Renderable.POINTS = glenum.POINTS;
Renderable.LINES = glenum.LINES;
Renderable.LINE_LOOP = glenum.LINE_LOOP;
Renderable.LINE_STRIP = glenum.LINE_STRIP;
Renderable.TRIANGLES = glenum.TRIANGLES;
Renderable.TRIANGLE_STRIP = glenum.TRIANGLE_STRIP;
Renderable.TRIANGLE_FAN = glenum.TRIANGLE_FAN;
Renderable.BACK = glenum.BACK;
Renderable.FRONT = glenum.FRONT;
Renderable.FRONT_AND_BACK = glenum.FRONT_AND_BACK;
Renderable.CW = glenum.CW;
Renderable.CCW = glenum.CCW;
var RayPicking = Base.extend(
  /** @lends clay.picking.RayPicking# */
  {
    /**
     * Target scene
     * @type {clay.Scene}
     */
    scene: null,
    /**
     * Target camera
     * @type {clay.Camera}
     */
    camera: null,
    /**
     * Target renderer
     * @type {clay.Renderer}
     */
    renderer: null
  },
  function() {
    this._ray = new Ray();
    this._ndc = new Vector2();
  },
  /** @lends clay.picking.RayPicking.prototype */
  {
    /**
     * Pick the nearest intersection object in the scene
     * @param  {number} x Mouse position x
     * @param  {number} y Mouse position y
     * @param  {boolean} [forcePickAll=false] ignore ignorePicking
     * @return {clay.picking.RayPicking~Intersection}
     */
    pick: function(x, y, forcePickAll) {
      var out = this.pickAll(x, y, [], forcePickAll);
      return out[0] || null;
    },
    /**
     * Pick all intersection objects, wich will be sorted from near to far
     * @param  {number} x Mouse position x
     * @param  {number} y Mouse position y
     * @param  {Array} [output]
     * @param  {boolean} [forcePickAll=false] ignore ignorePicking
     * @return {Array.<clay.picking.RayPicking~Intersection>}
     */
    pickAll: function(x, y, output, forcePickAll) {
      this.renderer.screenToNDC(x, y, this._ndc);
      this.camera.castRay(this._ndc, this._ray);
      output = output || [];
      this._intersectNode(this.scene, output, forcePickAll || false);
      output.sort(this._intersectionCompareFunc);
      return output;
    },
    _intersectNode: function(node, out, forcePickAll) {
      if (node instanceof Renderable && node.isRenderable()) {
        if ((!node.ignorePicking || forcePickAll) && // Only triangle mesh support ray picking
        (node.mode === glenum.TRIANGLES && node.geometry.isUseIndices() || node.geometry.pickByRay || node.geometry.pick)) {
          this._intersectRenderable(node, out);
        }
      }
      for (var i = 0; i < node._children.length; i++) {
        this._intersectNode(node._children[i], out, forcePickAll);
      }
    },
    _intersectRenderable: function() {
      var v1 = new Vector3();
      var v2 = new Vector3();
      var v3 = new Vector3();
      var ray = new Ray();
      var worldInverse = new Matrix4();
      return function(renderable, out) {
        var isSkinnedMesh = renderable.isSkinnedMesh();
        ray.copy(this._ray);
        Matrix4.invert(worldInverse, renderable.worldTransform);
        if (!isSkinnedMesh) {
          ray.applyTransform(worldInverse);
        }
        var geometry = renderable.geometry;
        var bbox = isSkinnedMesh ? renderable.skeleton.boundingBox : geometry.boundingBox;
        if (bbox && !ray.intersectBoundingBox(bbox)) {
          return;
        }
        if (geometry.pick) {
          geometry.pick(
            this._ndc.x,
            this._ndc.y,
            this.renderer,
            this.camera,
            renderable,
            out
          );
          return;
        } else if (geometry.pickByRay) {
          geometry.pickByRay(ray, renderable, out);
          return;
        }
        var cullBack = renderable.cullFace === glenum.BACK && renderable.frontFace === glenum.CCW || renderable.cullFace === glenum.FRONT && renderable.frontFace === glenum.CW;
        var point;
        var indices = geometry.indices;
        var positionAttr = geometry.attributes.position;
        var weightAttr = geometry.attributes.weight;
        var jointAttr = geometry.attributes.joint;
        var skinMatricesArray;
        var skinMatrices = [];
        if (!positionAttr || !positionAttr.value || !indices) {
          return;
        }
        if (isSkinnedMesh) {
          skinMatricesArray = renderable.skeleton.getSubSkinMatrices(renderable.__uid__, renderable.joints);
          for (var i = 0; i < renderable.joints.length; i++) {
            skinMatrices[i] = skinMatrices[i] || [];
            for (var k = 0; k < 16; k++) {
              skinMatrices[i][k] = skinMatricesArray[i * 16 + k];
            }
          }
          var pos = [];
          var weight = [];
          var joint = [];
          var skinnedPos = [];
          var tmp = [];
          var skinnedPositionAttr = geometry.attributes.skinnedPosition;
          if (!skinnedPositionAttr || !skinnedPositionAttr.value) {
            geometry.createAttribute("skinnedPosition", "f", 3);
            skinnedPositionAttr = geometry.attributes.skinnedPosition;
            skinnedPositionAttr.init(geometry.vertexCount);
          }
          for (var i = 0; i < geometry.vertexCount; i++) {
            positionAttr.get(i, pos);
            weightAttr.get(i, weight);
            jointAttr.get(i, joint);
            weight[3] = 1 - weight[0] - weight[1] - weight[2];
            vec3$f.set(skinnedPos, 0, 0, 0);
            for (var k = 0; k < 4; k++) {
              if (joint[k] >= 0 && weight[k] > 1e-4) {
                vec3$f.transformMat4(tmp, pos, skinMatrices[joint[k]]);
                vec3$f.scaleAndAdd(skinnedPos, skinnedPos, tmp, weight[k]);
              }
            }
            skinnedPositionAttr.set(i, skinnedPos);
          }
        }
        for (var i = 0; i < indices.length; i += 3) {
          var i1 = indices[i];
          var i2 = indices[i + 1];
          var i3 = indices[i + 2];
          var finalPosAttr = isSkinnedMesh ? geometry.attributes.skinnedPosition : positionAttr;
          finalPosAttr.get(i1, v1.array);
          finalPosAttr.get(i2, v2.array);
          finalPosAttr.get(i3, v3.array);
          if (cullBack) {
            point = ray.intersectTriangle(v1, v2, v3, renderable.culling);
          } else {
            point = ray.intersectTriangle(v1, v3, v2, renderable.culling);
          }
          if (point) {
            var pointW = new Vector3();
            if (!isSkinnedMesh) {
              Vector3.transformMat4(pointW, point, renderable.worldTransform);
            } else {
              Vector3.copy(pointW, point);
            }
            out.push(new RayPicking.Intersection(
              point,
              pointW,
              renderable,
              [i1, i2, i3],
              i / 3,
              Vector3.dist(pointW, this._ray.origin)
            ));
          }
        }
      };
    }(),
    _intersectionCompareFunc: function(a, b) {
      return a.distance - b.distance;
    }
  }
);
RayPicking.Intersection = function(point, pointWorld, target, triangle, triangleIndex, distance) {
  this.point = point;
  this.pointWorld = pointWorld;
  this.target = target;
  this.triangle = triangle;
  this.triangleIndex = triangleIndex;
  this.distance = distance;
};
var DIRTY_PREFIX = "__dt__";
var Cache = function() {
  this._contextId = 0;
  this._caches = [];
  this._context = {};
};
Cache.prototype = {
  use: function(contextId, documentSchema) {
    var caches = this._caches;
    if (!caches[contextId]) {
      caches[contextId] = {};
      if (documentSchema) {
        caches[contextId] = documentSchema();
      }
    }
    this._contextId = contextId;
    this._context = caches[contextId];
  },
  put: function(key, value) {
    this._context[key] = value;
  },
  get: function(key) {
    return this._context[key];
  },
  dirty: function(field) {
    field = field || "";
    var key = DIRTY_PREFIX + field;
    this.put(key, true);
  },
  dirtyAll: function(field) {
    field = field || "";
    var key = DIRTY_PREFIX + field;
    var caches = this._caches;
    for (var i = 0; i < caches.length; i++) {
      if (caches[i]) {
        caches[i][key] = true;
      }
    }
  },
  fresh: function(field) {
    field = field || "";
    var key = DIRTY_PREFIX + field;
    this.put(key, false);
  },
  freshAll: function(field) {
    field = field || "";
    var key = DIRTY_PREFIX + field;
    var caches = this._caches;
    for (var i = 0; i < caches.length; i++) {
      if (caches[i]) {
        caches[i][key] = false;
      }
    }
  },
  isDirty: function(field) {
    field = field || "";
    var key = DIRTY_PREFIX + field;
    var context = this._context;
    return !context.hasOwnProperty(key) || context[key] === true;
  },
  deleteContext: function(contextId) {
    delete this._caches[contextId];
    this._context = {};
  },
  delete: function(key) {
    delete this._context[key];
  },
  clearAll: function() {
    this._caches = {};
  },
  getContext: function() {
    return this._context;
  },
  eachContext: function(cb, context) {
    var keys2 = Object.keys(this._caches);
    keys2.forEach(function(key) {
      cb && cb.call(context, key);
    });
  },
  miss: function(key) {
    return !this._context.hasOwnProperty(key);
  }
};
Cache.prototype.constructor = Cache;
var Texture = Base.extend(
  /** @lends clay.Texture# */
  {
    /**
     * Texture width, readonly when the texture source is image
     * @type {number}
     */
    width: 512,
    /**
     * Texture height, readonly when the texture source is image
     * @type {number}
     */
    height: 512,
    /**
     * Texel data type.
     * Possible values:
     *  + {@link clay.Texture.UNSIGNED_BYTE}
     *  + {@link clay.Texture.HALF_FLOAT}
     *  + {@link clay.Texture.FLOAT}
     *  + {@link clay.Texture.UNSIGNED_INT_24_8_WEBGL}
     *  + {@link clay.Texture.UNSIGNED_INT}
     * @type {number}
     */
    type: glenum.UNSIGNED_BYTE,
    /**
     * Format of texel data
     * Possible values:
     *  + {@link clay.Texture.RGBA}
     *  + {@link clay.Texture.DEPTH_COMPONENT}
     *  + {@link clay.Texture.DEPTH_STENCIL}
     * @type {number}
     */
    format: glenum.RGBA,
    /**
     * Texture wrap. Default to be REPEAT.
     * Possible values:
     *  + {@link clay.Texture.CLAMP_TO_EDGE}
     *  + {@link clay.Texture.REPEAT}
     *  + {@link clay.Texture.MIRRORED_REPEAT}
     * @type {number}
     */
    wrapS: glenum.REPEAT,
    /**
     * Texture wrap. Default to be REPEAT.
     * Possible values:
     *  + {@link clay.Texture.CLAMP_TO_EDGE}
     *  + {@link clay.Texture.REPEAT}
     *  + {@link clay.Texture.MIRRORED_REPEAT}
     * @type {number}
     */
    wrapT: glenum.REPEAT,
    /**
     * Possible values:
     *  + {@link clay.Texture.NEAREST}
     *  + {@link clay.Texture.LINEAR}
     *  + {@link clay.Texture.NEAREST_MIPMAP_NEAREST}
     *  + {@link clay.Texture.LINEAR_MIPMAP_NEAREST}
     *  + {@link clay.Texture.NEAREST_MIPMAP_LINEAR}
     *  + {@link clay.Texture.LINEAR_MIPMAP_LINEAR}
     * @type {number}
     */
    minFilter: glenum.LINEAR_MIPMAP_LINEAR,
    /**
     * Possible values:
     *  + {@link clay.Texture.NEAREST}
     *  + {@link clay.Texture.LINEAR}
     * @type {number}
     */
    magFilter: glenum.LINEAR,
    /**
     * If enable mimap.
     * @type {boolean}
     */
    useMipmap: true,
    /**
     * Anisotropic filtering, enabled if value is larger than 1
     * @see https://developer.mozilla.org/en-US/docs/Web/API/EXT_texture_filter_anisotropic
     * @type {number}
     */
    anisotropic: 1,
    // pixelStorei parameters, not available when texture is used as render target
    // http://www.khronos.org/opengles/sdk/docs/man/xhtml/glPixelStorei.xml
    /**
     * If flip in y axis for given image source
     * @type {boolean}
     * @default true
     */
    flipY: true,
    /**
     * A flag to indicate if texture source is sRGB
     */
    sRGB: true,
    /**
     * @type {number}
     * @default 4
     */
    unpackAlignment: 4,
    /**
     * @type {boolean}
     * @default false
     */
    premultiplyAlpha: false,
    /**
     * Dynamic option for texture like video
     * @type {boolean}
     */
    dynamic: false,
    NPOT: false,
    // PENDING
    // Init it here to avoid deoptimization when it's assigned in application dynamically
    __used: 0
  },
  function() {
    this._cache = new Cache();
  },
  /** @lends clay.Texture.prototype */
  {
    getWebGLTexture: function(renderer) {
      var _gl = renderer.gl;
      var cache = this._cache;
      cache.use(renderer.__uid__);
      if (cache.miss("webgl_texture")) {
        cache.put("webgl_texture", _gl.createTexture());
      }
      if (this.dynamic) {
        this.update(renderer);
      } else if (cache.isDirty()) {
        this.update(renderer);
        cache.fresh();
      }
      return cache.get("webgl_texture");
    },
    bind: function() {
    },
    unbind: function() {
    },
    /**
     * Mark texture is dirty and update in the next frame
     */
    dirty: function() {
      if (this._cache) {
        this._cache.dirtyAll();
      }
    },
    update: function(renderer) {
    },
    // Update the common parameters of texture
    updateCommon: function(renderer) {
      var _gl = renderer.gl;
      _gl.pixelStorei(_gl.UNPACK_FLIP_Y_WEBGL, this.flipY);
      _gl.pixelStorei(_gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, this.premultiplyAlpha);
      _gl.pixelStorei(_gl.UNPACK_ALIGNMENT, this.unpackAlignment);
      if (this.format === glenum.DEPTH_COMPONENT) {
        this.useMipmap = false;
      }
      var sRGBExt = renderer.getGLExtension("EXT_sRGB");
      if (this.format === Texture.SRGB && !sRGBExt) {
        this.format = Texture.RGB;
      }
      if (this.format === Texture.SRGB_ALPHA && !sRGBExt) {
        this.format = Texture.RGBA;
      }
      this.NPOT = !this.isPowerOfTwo();
    },
    getAvailableWrapS: function() {
      if (this.NPOT) {
        return glenum.CLAMP_TO_EDGE;
      }
      return this.wrapS;
    },
    getAvailableWrapT: function() {
      if (this.NPOT) {
        return glenum.CLAMP_TO_EDGE;
      }
      return this.wrapT;
    },
    getAvailableMinFilter: function() {
      var minFilter = this.minFilter;
      if (this.NPOT || !this.useMipmap) {
        if (minFilter === glenum.NEAREST_MIPMAP_NEAREST || minFilter === glenum.NEAREST_MIPMAP_LINEAR) {
          return glenum.NEAREST;
        } else if (minFilter === glenum.LINEAR_MIPMAP_LINEAR || minFilter === glenum.LINEAR_MIPMAP_NEAREST) {
          return glenum.LINEAR;
        } else {
          return minFilter;
        }
      } else {
        return minFilter;
      }
    },
    getAvailableMagFilter: function() {
      return this.magFilter;
    },
    nextHighestPowerOfTwo: function(x) {
      --x;
      for (var i = 1; i < 32; i <<= 1) {
        x = x | x >> i;
      }
      return x + 1;
    },
    /**
     * @param  {clay.Renderer} renderer
     */
    dispose: function(renderer) {
      var cache = this._cache;
      cache.use(renderer.__uid__);
      var webglTexture = cache.get("webgl_texture");
      if (webglTexture) {
        renderer.gl.deleteTexture(webglTexture);
      }
      cache.deleteContext(renderer.__uid__);
    },
    /**
     * Test if image of texture is valid and loaded.
     * @return {boolean}
     */
    isRenderable: function() {
    },
    /**
     * Test if texture size is power of two
     * @return {boolean}
     */
    isPowerOfTwo: function() {
    }
  }
);
Object.defineProperty(Texture.prototype, "width", {
  get: function() {
    return this._width;
  },
  set: function(value) {
    this._width = value;
  }
});
Object.defineProperty(Texture.prototype, "height", {
  get: function() {
    return this._height;
  },
  set: function(value) {
    this._height = value;
  }
});
Texture.BYTE = glenum.BYTE;
Texture.UNSIGNED_BYTE = glenum.UNSIGNED_BYTE;
Texture.SHORT = glenum.SHORT;
Texture.UNSIGNED_SHORT = glenum.UNSIGNED_SHORT;
Texture.INT = glenum.INT;
Texture.UNSIGNED_INT = glenum.UNSIGNED_INT;
Texture.FLOAT = glenum.FLOAT;
Texture.HALF_FLOAT = 36193;
Texture.UNSIGNED_INT_24_8_WEBGL = 34042;
Texture.DEPTH_COMPONENT = glenum.DEPTH_COMPONENT;
Texture.DEPTH_STENCIL = glenum.DEPTH_STENCIL;
Texture.ALPHA = glenum.ALPHA;
Texture.RGB = glenum.RGB;
Texture.RGBA = glenum.RGBA;
Texture.LUMINANCE = glenum.LUMINANCE;
Texture.LUMINANCE_ALPHA = glenum.LUMINANCE_ALPHA;
Texture.SRGB = 35904;
Texture.SRGB_ALPHA = 35906;
Texture.COMPRESSED_RGB_S3TC_DXT1_EXT = 33776;
Texture.COMPRESSED_RGBA_S3TC_DXT1_EXT = 33777;
Texture.COMPRESSED_RGBA_S3TC_DXT3_EXT = 33778;
Texture.COMPRESSED_RGBA_S3TC_DXT5_EXT = 33779;
Texture.NEAREST = glenum.NEAREST;
Texture.LINEAR = glenum.LINEAR;
Texture.NEAREST_MIPMAP_NEAREST = glenum.NEAREST_MIPMAP_NEAREST;
Texture.LINEAR_MIPMAP_NEAREST = glenum.LINEAR_MIPMAP_NEAREST;
Texture.NEAREST_MIPMAP_LINEAR = glenum.NEAREST_MIPMAP_LINEAR;
Texture.LINEAR_MIPMAP_LINEAR = glenum.LINEAR_MIPMAP_LINEAR;
Texture.REPEAT = glenum.REPEAT;
Texture.CLAMP_TO_EDGE = glenum.CLAMP_TO_EDGE;
Texture.MIRRORED_REPEAT = glenum.MIRRORED_REPEAT;
var Mesh = Renderable.extend(
  /** @lends clay.Mesh# */
  {
    /**
     * Used when it is a skinned mesh
     * @type {clay.Skeleton}
     */
    skeleton: null,
    /**
     * Joints indices Meshes can share the one skeleton instance and each mesh can use one part of joints. Joints indices indicate the index of joint in the skeleton instance
     * @type {number[]}
     */
    joints: null
  },
  function() {
    if (!this.joints) {
      this.joints = [];
    }
  },
  {
    /**
     * Offset matrix used for multiple skinned mesh clone sharing one skeleton
     * @type {clay.Matrix4}
     */
    offsetMatrix: null,
    isInstancedMesh: function() {
      return false;
    },
    isSkinnedMesh: function() {
      return !!(this.skeleton && this.joints && this.joints.length > 0);
    },
    clone: function() {
      var mesh2 = Renderable.prototype.clone.call(this);
      mesh2.skeleton = this.skeleton;
      if (this.joints) {
        mesh2.joints = this.joints.slice();
      }
      return mesh2;
    }
  }
);
Mesh.POINTS = glenum.POINTS;
Mesh.LINES = glenum.LINES;
Mesh.LINE_LOOP = glenum.LINE_LOOP;
Mesh.LINE_STRIP = glenum.LINE_STRIP;
Mesh.TRIANGLES = glenum.TRIANGLES;
Mesh.TRIANGLE_STRIP = glenum.TRIANGLE_STRIP;
Mesh.TRIANGLE_FAN = glenum.TRIANGLE_FAN;
Mesh.BACK = glenum.BACK;
Mesh.FRONT = glenum.FRONT;
Mesh.FRONT_AND_BACK = glenum.FRONT_AND_BACK;
Mesh.CW = glenum.CW;
Mesh.CCW = glenum.CCW;
var mathUtil = {};
mathUtil.isPowerOfTwo = function(value) {
  return (value & value - 1) === 0;
};
mathUtil.nextPowerOfTwo = function(value) {
  value--;
  value |= value >> 1;
  value |= value >> 2;
  value |= value >> 4;
  value |= value >> 8;
  value |= value >> 16;
  value++;
  return value;
};
mathUtil.nearestPowerOfTwo = function(value) {
  return Math.pow(2, Math.round(Math.log(value) / Math.LN2));
};
var isPowerOfTwo$2 = mathUtil.isPowerOfTwo;
function nearestPowerOfTwo$1(val) {
  return Math.pow(2, Math.round(Math.log(val) / Math.LN2));
}
function convertTextureToPowerOfTwo$1(texture, canvas) {
  var width = nearestPowerOfTwo$1(texture.width);
  var height = nearestPowerOfTwo$1(texture.height);
  canvas = canvas || document.createElement("canvas");
  canvas.width = width;
  canvas.height = height;
  var ctx = canvas.getContext("2d");
  ctx.drawImage(texture.image, 0, 0, width, height);
  return canvas;
}
var Texture2D = Texture.extend(function() {
  return (
    /** @lends clay.Texture2D# */
    {
      /**
       * @type {?HTMLImageElement|HTMLCanvasElemnet}
       */
      // TODO mark dirty when assigned.
      image: null,
      /**
       * Pixels data. Will be ignored if image is set.
       * @type {?Uint8Array|Float32Array}
       */
      pixels: null,
      /**
       * @type {Array.<Object>}
       * @example
       *     [{
       *         image: mipmap0,
       *         pixels: null
       *     }, {
       *         image: mipmap1,
       *         pixels: null
       *     }, ....]
       */
      mipmaps: [],
      /**
       * If convert texture to power-of-two
       * @type {boolean}
       */
      convertToPOT: false
    }
  );
}, {
  textureType: "texture2D",
  update: function(renderer) {
    var _gl = renderer.gl;
    _gl.bindTexture(_gl.TEXTURE_2D, this._cache.get("webgl_texture"));
    this.updateCommon(renderer);
    var glFormat = this.format;
    var glType = this.type;
    var convertToPOT = !!(this.convertToPOT && !this.mipmaps.length && this.image && (this.wrapS === Texture.REPEAT || this.wrapT === Texture.REPEAT) && this.NPOT);
    _gl.texParameteri(_gl.TEXTURE_2D, _gl.TEXTURE_WRAP_S, convertToPOT ? this.wrapS : this.getAvailableWrapS());
    _gl.texParameteri(_gl.TEXTURE_2D, _gl.TEXTURE_WRAP_T, convertToPOT ? this.wrapT : this.getAvailableWrapT());
    _gl.texParameteri(_gl.TEXTURE_2D, _gl.TEXTURE_MAG_FILTER, convertToPOT ? this.magFilter : this.getAvailableMagFilter());
    _gl.texParameteri(_gl.TEXTURE_2D, _gl.TEXTURE_MIN_FILTER, convertToPOT ? this.minFilter : this.getAvailableMinFilter());
    var anisotropicExt = renderer.getGLExtension("EXT_texture_filter_anisotropic");
    if (anisotropicExt && this.anisotropic > 1) {
      _gl.texParameterf(_gl.TEXTURE_2D, anisotropicExt.TEXTURE_MAX_ANISOTROPY_EXT, this.anisotropic);
    }
    if (glType === 36193) {
      var halfFloatExt = renderer.getGLExtension("OES_texture_half_float");
      if (!halfFloatExt) {
        glType = glenum.FLOAT;
      }
    }
    if (this.mipmaps.length) {
      var width = this.width;
      var height = this.height;
      for (var i = 0; i < this.mipmaps.length; i++) {
        var mipmap = this.mipmaps[i];
        this._updateTextureData(_gl, mipmap, i, width, height, glFormat, glType, false);
        width /= 2;
        height /= 2;
      }
    } else {
      this._updateTextureData(_gl, this, 0, this.width, this.height, glFormat, glType, convertToPOT);
      if (this.useMipmap && (!this.NPOT || convertToPOT)) {
        _gl.generateMipmap(_gl.TEXTURE_2D);
      }
    }
    _gl.bindTexture(_gl.TEXTURE_2D, null);
  },
  _updateTextureData: function(_gl, data, level, width, height, glFormat, glType, convertToPOT) {
    if (data.image) {
      var imgData = data.image;
      if (convertToPOT) {
        this._potCanvas = convertTextureToPowerOfTwo$1(this, this._potCanvas);
        imgData = this._potCanvas;
      }
      _gl.texImage2D(_gl.TEXTURE_2D, level, glFormat, glFormat, glType, imgData);
    } else {
      if (glFormat <= Texture.COMPRESSED_RGBA_S3TC_DXT5_EXT && glFormat >= Texture.COMPRESSED_RGB_S3TC_DXT1_EXT) {
        _gl.compressedTexImage2D(_gl.TEXTURE_2D, level, glFormat, width, height, 0, data.pixels);
      } else {
        _gl.texImage2D(_gl.TEXTURE_2D, level, glFormat, width, height, 0, glFormat, glType, data.pixels);
      }
    }
  },
  /**
   * @param  {clay.Renderer} renderer
   * @memberOf clay.Texture2D.prototype
   */
  generateMipmap: function(renderer) {
    var _gl = renderer.gl;
    if (this.useMipmap && !this.NPOT) {
      _gl.bindTexture(_gl.TEXTURE_2D, this._cache.get("webgl_texture"));
      _gl.generateMipmap(_gl.TEXTURE_2D);
    }
  },
  isPowerOfTwo: function() {
    return isPowerOfTwo$2(this.width) && isPowerOfTwo$2(this.height);
  },
  isRenderable: function() {
    if (this.image) {
      return this.image.width > 0 && this.image.height > 0;
    } else {
      return !!(this.width && this.height);
    }
  },
  bind: function(renderer) {
    renderer.gl.bindTexture(renderer.gl.TEXTURE_2D, this.getWebGLTexture(renderer));
  },
  unbind: function(renderer) {
    renderer.gl.bindTexture(renderer.gl.TEXTURE_2D, null);
  },
  load: function(src, crossOrigin) {
    var image = vendor.createImage();
    if (crossOrigin) {
      image.crossOrigin = crossOrigin;
    }
    var self2 = this;
    image.onload = function() {
      self2.dirty();
      self2.trigger("success", self2);
    };
    image.onerror = function() {
      self2.trigger("error", self2);
    };
    image.src = src;
    this.image = image;
    return this;
  }
});
Object.defineProperty(Texture2D.prototype, "width", {
  get: function() {
    if (this.image) {
      return this.image.width;
    }
    return this._width;
  },
  set: function(value) {
    if (this.image) {
      console.warn("Texture from image can't set width");
    } else {
      if (this._width !== value) {
        this.dirty();
      }
      this._width = value;
    }
  }
});
Object.defineProperty(Texture2D.prototype, "height", {
  get: function() {
    if (this.image) {
      return this.image.height;
    }
    return this._height;
  },
  set: function(value) {
    if (this.image) {
      console.warn("Texture from image can't set height");
    } else {
      if (this._height !== value) {
        this.dirty();
      }
      this._height = value;
    }
  }
});
function getArrayCtorByType(type) {
  return {
    "byte": vendor.Int8Array,
    "ubyte": vendor.Uint8Array,
    "short": vendor.Int16Array,
    "ushort": vendor.Uint16Array
  }[type] || vendor.Float32Array;
}
function makeAttrKey(attrName) {
  return "attr_" + attrName;
}
function Attribute$1(name, type, size, semantic) {
  this.name = name;
  this.type = type;
  this.size = size;
  this.semantic = semantic || "";
  this.value = null;
  switch (size) {
    case 1:
      this.get = function(idx) {
        return this.value[idx];
      };
      this.set = function(idx, value) {
        this.value[idx] = value;
      };
      this.copy = function(target, source) {
        this.value[target] = this.value[target];
      };
      break;
    case 2:
      this.get = function(idx, out) {
        var arr = this.value;
        out[0] = arr[idx * 2];
        out[1] = arr[idx * 2 + 1];
        return out;
      };
      this.set = function(idx, val) {
        var arr = this.value;
        arr[idx * 2] = val[0];
        arr[idx * 2 + 1] = val[1];
      };
      this.copy = function(target, source) {
        var arr = this.value;
        source *= 2;
        target *= 2;
        arr[target] = arr[source];
        arr[target + 1] = arr[source + 1];
      };
      break;
    case 3:
      this.get = function(idx, out) {
        var idx3 = idx * 3;
        var arr = this.value;
        out[0] = arr[idx3];
        out[1] = arr[idx3 + 1];
        out[2] = arr[idx3 + 2];
        return out;
      };
      this.set = function(idx, val) {
        var idx3 = idx * 3;
        var arr = this.value;
        arr[idx3] = val[0];
        arr[idx3 + 1] = val[1];
        arr[idx3 + 2] = val[2];
      };
      this.copy = function(target, source) {
        var arr = this.value;
        source *= 3;
        target *= 3;
        arr[target] = arr[source];
        arr[target + 1] = arr[source + 1];
        arr[target + 2] = arr[source + 2];
      };
      break;
    case 4:
      this.get = function(idx, out) {
        var arr = this.value;
        var idx4 = idx * 4;
        out[0] = arr[idx4];
        out[1] = arr[idx4 + 1];
        out[2] = arr[idx4 + 2];
        out[3] = arr[idx4 + 3];
        return out;
      };
      this.set = function(idx, val) {
        var arr = this.value;
        var idx4 = idx * 4;
        arr[idx4] = val[0];
        arr[idx4 + 1] = val[1];
        arr[idx4 + 2] = val[2];
        arr[idx4 + 3] = val[3];
      };
      this.copy = function(target, source) {
        var arr = this.value;
        source *= 4;
        target *= 4;
        arr[target] = arr[source];
        arr[target + 1] = arr[source + 1];
        arr[target + 2] = arr[source + 2];
        arr[target + 3] = arr[source + 3];
      };
  }
}
Attribute$1.prototype.init = function(nVertex) {
  if (!this.value || this.value.length !== nVertex * this.size) {
    var ArrayConstructor = getArrayCtorByType(this.type);
    this.value = new ArrayConstructor(nVertex * this.size);
  }
};
Attribute$1.prototype.fromArray = function(array) {
  var ArrayConstructor = getArrayCtorByType(this.type);
  var value;
  if (array[0] && array[0].length) {
    var n = 0;
    var size = this.size;
    value = new ArrayConstructor(array.length * size);
    for (var i = 0; i < array.length; i++) {
      for (var j = 0; j < size; j++) {
        value[n++] = array[i][j];
      }
    }
  } else {
    value = new ArrayConstructor(array);
  }
  this.value = value;
};
Attribute$1.prototype.clone = function(copyValue) {
  var ret2 = new Attribute$1(this.name, this.type, this.size, this.semantic);
  if (copyValue) {
    console.warn("todo");
  }
  return ret2;
};
function AttributeBuffer(name, type, buffer, size, semantic) {
  this.name = name;
  this.type = type;
  this.buffer = buffer;
  this.size = size;
  this.semantic = semantic;
  this.symbol = "";
  this.needsRemove = false;
}
function IndicesBuffer(buffer) {
  this.buffer = buffer;
  this.count = 0;
}
var GeometryBase = Base.extend(
  function() {
    return (
      /** @lends clay.GeometryBase# */
      {
        /**
         * Attributes of geometry.
         * @type {Object.<string, clay.GeometryBase.Attribute>}
         */
        attributes: {},
        /**
         * Indices of geometry.
         * @type {Uint16Array|Uint32Array}
         */
        indices: null,
        /**
         * Is vertices data dynamically updated.
         * Attributes value can't be changed after first render if dyanmic is false.
         * @type {boolean}
         */
        dynamic: true,
        _enabledAttributes: null,
        // PENDING
        // Init it here to avoid deoptimization when it's assigned in application dynamically
        __used: 0
      }
    );
  },
  function() {
    this._cache = new Cache();
    this._attributeList = Object.keys(this.attributes);
    this.__vaoCache = {};
  },
  /** @lends clay.GeometryBase.prototype */
  {
    /**
     * Main attribute will be used to count vertex number
     * @type {string}
     */
    mainAttribute: "",
    /**
     * User defined picking algorithm instead of default
     * triangle ray intersection
     * x, y are NDC.
     * ```typescript
     * (x, y, renderer, camera, renderable, out) => boolean
     * ```
     * @type {?Function}
     */
    pick: null,
    /**
     * User defined ray picking algorithm instead of default
     * triangle ray intersection
     * ```typescript
     * (ray: clay.Ray, renderable: clay.Renderable, out: Array) => boolean
     * ```
     * @type {?Function}
     */
    pickByRay: null,
    /**
     * Mark attributes and indices in geometry needs to update.
     * Usually called after you change the data in attributes.
     */
    dirty: function() {
      var enabledAttributes = this.getEnabledAttributes();
      for (var i = 0; i < enabledAttributes.length; i++) {
        this.dirtyAttribute(enabledAttributes[i]);
      }
      this.dirtyIndices();
      this._enabledAttributes = null;
      this._cache.dirty("any");
    },
    /**
     * Mark the indices needs to update.
     */
    dirtyIndices: function() {
      this._cache.dirtyAll("indices");
    },
    /**
     * Mark the attributes needs to update.
     * @param {string} [attrName]
     */
    dirtyAttribute: function(attrName) {
      this._cache.dirtyAll(makeAttrKey(attrName));
      this._cache.dirtyAll("attributes");
    },
    /**
     * Get indices of triangle at given index.
     * @param {number} idx
     * @param {Array.<number>} out
     * @return {Array.<number>}
     */
    getTriangleIndices: function(idx, out) {
      if (idx < this.triangleCount && idx >= 0) {
        if (!out) {
          out = [];
        }
        var indices = this.indices;
        out[0] = indices[idx * 3];
        out[1] = indices[idx * 3 + 1];
        out[2] = indices[idx * 3 + 2];
        return out;
      }
    },
    /**
     * Set indices of triangle at given index.
     * @param {number} idx
     * @param {Array.<number>} arr
     */
    setTriangleIndices: function(idx, arr) {
      var indices = this.indices;
      indices[idx * 3] = arr[0];
      indices[idx * 3 + 1] = arr[1];
      indices[idx * 3 + 2] = arr[2];
    },
    isUseIndices: function() {
      return !!this.indices;
    },
    /**
     * Initialize indices from an array.
     * @param {Array} array
     */
    initIndicesFromArray: function(array) {
      var value;
      var ArrayConstructor = this.vertexCount > 65535 ? vendor.Uint32Array : vendor.Uint16Array;
      if (array[0] && array[0].length) {
        var n = 0;
        var size = 3;
        value = new ArrayConstructor(array.length * size);
        for (var i = 0; i < array.length; i++) {
          for (var j = 0; j < size; j++) {
            value[n++] = array[i][j];
          }
        }
      } else {
        value = new ArrayConstructor(array);
      }
      this.indices = value;
    },
    /**
     * Create a new attribute
     * @param {string} name
     * @param {string} type
     * @param {number} size
     * @param {string} [semantic]
     */
    createAttribute: function(name, type, size, semantic) {
      var attrib = new Attribute$1(name, type, size, semantic);
      if (this.attributes[name]) {
        this.removeAttribute(name);
      }
      this.attributes[name] = attrib;
      this._attributeList.push(name);
      return attrib;
    },
    /**
     * Remove attribute
     * @param {string} name
     */
    removeAttribute: function(name) {
      var attributeList = this._attributeList;
      var idx = attributeList.indexOf(name);
      if (idx >= 0) {
        attributeList.splice(idx, 1);
        delete this.attributes[name];
        return true;
      }
      return false;
    },
    /**
     * Get attribute
     * @param {string} name
     * @return {clay.GeometryBase.Attribute}
     */
    getAttribute: function(name) {
      return this.attributes[name];
    },
    /**
     * Get enabled attributes name list
     * Attribute which has the same vertex number with position is treated as a enabled attribute
     * @return {string[]}
     */
    getEnabledAttributes: function() {
      var enabledAttributes = this._enabledAttributes;
      var attributeList = this._attributeList;
      if (enabledAttributes) {
        return enabledAttributes;
      }
      var result = [];
      var nVertex = this.vertexCount;
      for (var i = 0; i < attributeList.length; i++) {
        var name = attributeList[i];
        var attrib = this.attributes[name];
        if (attrib.value) {
          if (attrib.value.length === nVertex * attrib.size) {
            result.push(name);
          }
        }
      }
      this._enabledAttributes = result;
      return result;
    },
    getBufferChunks: function(renderer) {
      var cache = this._cache;
      cache.use(renderer.__uid__);
      var isAttributesDirty = cache.isDirty("attributes");
      var isIndicesDirty = cache.isDirty("indices");
      if (isAttributesDirty || isIndicesDirty) {
        this._updateBuffer(renderer.gl, isAttributesDirty, isIndicesDirty);
        var enabledAttributes = this.getEnabledAttributes();
        for (var i = 0; i < enabledAttributes.length; i++) {
          cache.fresh(makeAttrKey(enabledAttributes[i]));
        }
        cache.fresh("attributes");
        cache.fresh("indices");
      }
      cache.fresh("any");
      return cache.get("chunks");
    },
    _updateBuffer: function(_gl, isAttributesDirty, isIndicesDirty) {
      var cache = this._cache;
      var chunks = cache.get("chunks");
      var firstUpdate = false;
      if (!chunks) {
        chunks = [];
        chunks[0] = {
          attributeBuffers: [],
          indicesBuffer: null
        };
        cache.put("chunks", chunks);
        firstUpdate = true;
      }
      var chunk = chunks[0];
      var attributeBuffers = chunk.attributeBuffers;
      var indicesBuffer = chunk.indicesBuffer;
      if (isAttributesDirty || firstUpdate) {
        var attributeList = this.getEnabledAttributes();
        var attributeBufferMap = {};
        if (!firstUpdate) {
          for (var i = 0; i < attributeBuffers.length; i++) {
            attributeBufferMap[attributeBuffers[i].name] = attributeBuffers[i];
          }
        }
        for (var k = 0; k < attributeList.length; k++) {
          var name = attributeList[k];
          var attribute = this.attributes[name];
          var bufferInfo;
          if (!firstUpdate) {
            bufferInfo = attributeBufferMap[name];
          }
          var buffer;
          if (bufferInfo) {
            buffer = bufferInfo.buffer;
          } else {
            buffer = _gl.createBuffer();
          }
          if (cache.isDirty(makeAttrKey(name))) {
            _gl.bindBuffer(_gl.ARRAY_BUFFER, buffer);
            _gl.bufferData(_gl.ARRAY_BUFFER, attribute.value, this.dynamic ? _gl.DYNAMIC_DRAW : _gl.STATIC_DRAW);
          }
          attributeBuffers[k] = new AttributeBuffer(name, attribute.type, buffer, attribute.size, attribute.semantic);
        }
        for (var i = k; i < attributeBuffers.length; i++) {
          _gl.deleteBuffer(attributeBuffers[i].buffer);
        }
        attributeBuffers.length = k;
      }
      if (this.isUseIndices() && (isIndicesDirty || firstUpdate)) {
        if (!indicesBuffer) {
          indicesBuffer = new IndicesBuffer(_gl.createBuffer());
          chunk.indicesBuffer = indicesBuffer;
        }
        indicesBuffer.count = this.indices.length;
        _gl.bindBuffer(_gl.ELEMENT_ARRAY_BUFFER, indicesBuffer.buffer);
        _gl.bufferData(_gl.ELEMENT_ARRAY_BUFFER, this.indices, this.dynamic ? _gl.DYNAMIC_DRAW : _gl.STATIC_DRAW);
      }
    },
    /**
     * Dispose geometry data in GL context.
     * @param {clay.Renderer} renderer
     */
    dispose: function(renderer) {
      var cache = this._cache;
      cache.use(renderer.__uid__);
      var chunks = cache.get("chunks");
      if (chunks) {
        for (var c = 0; c < chunks.length; c++) {
          var chunk = chunks[c];
          for (var k = 0; k < chunk.attributeBuffers.length; k++) {
            var attribs = chunk.attributeBuffers[k];
            renderer.gl.deleteBuffer(attribs.buffer);
          }
          if (chunk.indicesBuffer) {
            renderer.gl.deleteBuffer(chunk.indicesBuffer.buffer);
          }
        }
      }
      if (this.__vaoCache) {
        var vaoExt = renderer.getGLExtension("OES_vertex_array_object");
        for (var id in this.__vaoCache) {
          var vao = this.__vaoCache[id].vao;
          if (vao) {
            vaoExt.deleteVertexArrayOES(vao);
          }
        }
      }
      this.__vaoCache = {};
      cache.deleteContext(renderer.__uid__);
    }
  }
);
if (Object.defineProperty) {
  Object.defineProperty(GeometryBase.prototype, "vertexCount", {
    enumerable: false,
    get: function() {
      var mainAttribute = this.attributes[this.mainAttribute];
      if (!mainAttribute) {
        mainAttribute = this.attributes[this._attributeList[0]];
      }
      if (!mainAttribute || !mainAttribute.value) {
        return 0;
      }
      return mainAttribute.value.length / mainAttribute.size;
    }
  });
  Object.defineProperty(GeometryBase.prototype, "triangleCount", {
    enumerable: false,
    get: function() {
      var indices = this.indices;
      if (!indices) {
        return 0;
      } else {
        return indices.length / 3;
      }
    }
  });
}
GeometryBase.STATIC_DRAW = glenum.STATIC_DRAW;
GeometryBase.DYNAMIC_DRAW = glenum.DYNAMIC_DRAW;
GeometryBase.STREAM_DRAW = glenum.STREAM_DRAW;
GeometryBase.AttributeBuffer = AttributeBuffer;
GeometryBase.IndicesBuffer = IndicesBuffer;
GeometryBase.Attribute = Attribute$1;
var vec3Create = vec3$f.create;
var vec3Add = vec3$f.add;
var vec3Set$1 = vec3$f.set;
var Attribute = GeometryBase.Attribute;
var Geometry = GeometryBase.extend(
  function() {
    return (
      /** @lends clay.Geometry# */
      {
        /**
         * Attributes of geometry. Including:
         *  + `position`
         *  + `texcoord0`
         *  + `texcoord1`
         *  + `normal`
         *  + `tangent`
         *  + `color`
         *  + `weight`
         *  + `joint`
         *  + `barycentric`
         *
         * @type {Object.<string, clay.Geometry.Attribute>}
         */
        attributes: {
          position: new Attribute("position", "float", 3, "POSITION"),
          texcoord0: new Attribute("texcoord0", "float", 2, "TEXCOORD_0"),
          texcoord1: new Attribute("texcoord1", "float", 2, "TEXCOORD_1"),
          normal: new Attribute("normal", "float", 3, "NORMAL"),
          tangent: new Attribute("tangent", "float", 4, "TANGENT"),
          color: new Attribute("color", "float", 4, "COLOR"),
          // Skinning attributes
          // Each vertex can be bind to 4 bones, because the
          // sum of weights is 1, so the weights is stored in vec3 and the last
          // can be calculated by 1-w.x-w.y-w.z
          weight: new Attribute("weight", "float", 3, "WEIGHT"),
          joint: new Attribute("joint", "float", 4, "JOINT"),
          // For wireframe display
          // http://codeflow.org/entries/2012/aug/02/easy-wireframe-display-with-barycentric-coordinates/
          barycentric: new Attribute("barycentric", "float", 3, null)
        },
        /**
         * Calculated bounding box of geometry.
         * @type {clay.BoundingBox}
         */
        boundingBox: null
      }
    );
  },
  /** @lends clay.Geometry.prototype */
  {
    mainAttribute: "position",
    /**
     * Update boundingBox of Geometry
     */
    updateBoundingBox: function() {
      var bbox = this.boundingBox;
      if (!bbox) {
        bbox = this.boundingBox = new BoundingBox();
      }
      var posArr = this.attributes.position.value;
      if (posArr && posArr.length) {
        var min = bbox.min;
        var max = bbox.max;
        var minArr = min.array;
        var maxArr = max.array;
        vec3$f.set(minArr, posArr[0], posArr[1], posArr[2]);
        vec3$f.set(maxArr, posArr[0], posArr[1], posArr[2]);
        for (var i = 3; i < posArr.length; ) {
          var x = posArr[i++];
          var y = posArr[i++];
          var z = posArr[i++];
          if (x < minArr[0]) {
            minArr[0] = x;
          }
          if (y < minArr[1]) {
            minArr[1] = y;
          }
          if (z < minArr[2]) {
            minArr[2] = z;
          }
          if (x > maxArr[0]) {
            maxArr[0] = x;
          }
          if (y > maxArr[1]) {
            maxArr[1] = y;
          }
          if (z > maxArr[2]) {
            maxArr[2] = z;
          }
        }
        min._dirty = true;
        max._dirty = true;
      }
    },
    /**
     * Generate normals per vertex.
     */
    generateVertexNormals: function() {
      if (!this.vertexCount) {
        return;
      }
      var indices = this.indices;
      var attributes = this.attributes;
      var positions = attributes.position.value;
      var normals = attributes.normal.value;
      if (!normals || normals.length !== positions.length) {
        normals = attributes.normal.value = new vendor.Float32Array(positions.length);
      } else {
        for (var i = 0; i < normals.length; i++) {
          normals[i] = 0;
        }
      }
      var p12 = vec3Create();
      var p22 = vec3Create();
      var p3 = vec3Create();
      var v21 = vec3Create();
      var v32 = vec3Create();
      var n = vec3Create();
      var len = indices ? indices.length : this.vertexCount;
      var i1, i2, i3;
      for (var f = 0; f < len; ) {
        if (indices) {
          i1 = indices[f++];
          i2 = indices[f++];
          i3 = indices[f++];
        } else {
          i1 = f++;
          i2 = f++;
          i3 = f++;
        }
        vec3Set$1(p12, positions[i1 * 3], positions[i1 * 3 + 1], positions[i1 * 3 + 2]);
        vec3Set$1(p22, positions[i2 * 3], positions[i2 * 3 + 1], positions[i2 * 3 + 2]);
        vec3Set$1(p3, positions[i3 * 3], positions[i3 * 3 + 1], positions[i3 * 3 + 2]);
        vec3$f.sub(v21, p12, p22);
        vec3$f.sub(v32, p22, p3);
        vec3$f.cross(n, v21, v32);
        for (var i = 0; i < 3; i++) {
          normals[i1 * 3 + i] = normals[i1 * 3 + i] + n[i];
          normals[i2 * 3 + i] = normals[i2 * 3 + i] + n[i];
          normals[i3 * 3 + i] = normals[i3 * 3 + i] + n[i];
        }
      }
      for (var i = 0; i < normals.length; ) {
        vec3Set$1(n, normals[i], normals[i + 1], normals[i + 2]);
        vec3$f.normalize(n, n);
        normals[i++] = n[0];
        normals[i++] = n[1];
        normals[i++] = n[2];
      }
      this.dirty();
    },
    /**
     * Generate normals per face.
     */
    generateFaceNormals: function() {
      if (!this.vertexCount) {
        return;
      }
      if (!this.isUniqueVertex()) {
        this.generateUniqueVertex();
      }
      var indices = this.indices;
      var attributes = this.attributes;
      var positions = attributes.position.value;
      var normals = attributes.normal.value;
      var p12 = vec3Create();
      var p22 = vec3Create();
      var p3 = vec3Create();
      var v21 = vec3Create();
      var v32 = vec3Create();
      var n = vec3Create();
      if (!normals) {
        normals = attributes.normal.value = new Float32Array(positions.length);
      }
      var len = indices ? indices.length : this.vertexCount;
      var i1, i2, i3;
      for (var f = 0; f < len; ) {
        if (indices) {
          i1 = indices[f++];
          i2 = indices[f++];
          i3 = indices[f++];
        } else {
          i1 = f++;
          i2 = f++;
          i3 = f++;
        }
        vec3Set$1(p12, positions[i1 * 3], positions[i1 * 3 + 1], positions[i1 * 3 + 2]);
        vec3Set$1(p22, positions[i2 * 3], positions[i2 * 3 + 1], positions[i2 * 3 + 2]);
        vec3Set$1(p3, positions[i3 * 3], positions[i3 * 3 + 1], positions[i3 * 3 + 2]);
        vec3$f.sub(v21, p12, p22);
        vec3$f.sub(v32, p22, p3);
        vec3$f.cross(n, v21, v32);
        vec3$f.normalize(n, n);
        for (var i = 0; i < 3; i++) {
          normals[i1 * 3 + i] = n[i];
          normals[i2 * 3 + i] = n[i];
          normals[i3 * 3 + i] = n[i];
        }
      }
      this.dirty();
    },
    /**
     * Generate tangents attributes.
     */
    generateTangents: function() {
      if (!this.vertexCount) {
        return;
      }
      var nVertex = this.vertexCount;
      var attributes = this.attributes;
      if (!attributes.tangent.value) {
        attributes.tangent.value = new Float32Array(nVertex * 4);
      }
      var texcoords = attributes.texcoord0.value;
      var positions = attributes.position.value;
      var tangents = attributes.tangent.value;
      var normals = attributes.normal.value;
      if (!texcoords) {
        console.warn("Geometry without texcoords can't generate tangents.");
        return;
      }
      var tan1 = [];
      var tan2 = [];
      for (var i = 0; i < nVertex; i++) {
        tan1[i] = [0, 0, 0];
        tan2[i] = [0, 0, 0];
      }
      var sdir = [0, 0, 0];
      var tdir = [0, 0, 0];
      var indices = this.indices;
      var len = indices ? indices.length : this.vertexCount;
      var i1, i2, i3;
      for (var i = 0; i < len; ) {
        if (indices) {
          i1 = indices[i++];
          i2 = indices[i++];
          i3 = indices[i++];
        } else {
          i1 = i++;
          i2 = i++;
          i3 = i++;
        }
        var st1s = texcoords[i1 * 2], st2s = texcoords[i2 * 2], st3s = texcoords[i3 * 2], st1t = texcoords[i1 * 2 + 1], st2t = texcoords[i2 * 2 + 1], st3t = texcoords[i3 * 2 + 1], p1x = positions[i1 * 3], p2x = positions[i2 * 3], p3x = positions[i3 * 3], p1y = positions[i1 * 3 + 1], p2y = positions[i2 * 3 + 1], p3y = positions[i3 * 3 + 1], p1z = positions[i1 * 3 + 2], p2z = positions[i2 * 3 + 2], p3z = positions[i3 * 3 + 2];
        var x1 = p2x - p1x, x2 = p3x - p1x, y1 = p2y - p1y, y2 = p3y - p1y, z1 = p2z - p1z, z2 = p3z - p1z;
        var s1 = st2s - st1s, s2 = st3s - st1s, t1 = st2t - st1t, t2 = st3t - st1t;
        var r = 1 / (s1 * t2 - t1 * s2);
        sdir[0] = (t2 * x1 - t1 * x2) * r;
        sdir[1] = (t2 * y1 - t1 * y2) * r;
        sdir[2] = (t2 * z1 - t1 * z2) * r;
        tdir[0] = (s1 * x2 - s2 * x1) * r;
        tdir[1] = (s1 * y2 - s2 * y1) * r;
        tdir[2] = (s1 * z2 - s2 * z1) * r;
        vec3Add(tan1[i1], tan1[i1], sdir);
        vec3Add(tan1[i2], tan1[i2], sdir);
        vec3Add(tan1[i3], tan1[i3], sdir);
        vec3Add(tan2[i1], tan2[i1], tdir);
        vec3Add(tan2[i2], tan2[i2], tdir);
        vec3Add(tan2[i3], tan2[i3], tdir);
      }
      var tmp = vec3Create();
      var nCrossT = vec3Create();
      var n = vec3Create();
      for (var i = 0; i < nVertex; i++) {
        n[0] = normals[i * 3];
        n[1] = normals[i * 3 + 1];
        n[2] = normals[i * 3 + 2];
        var t = tan1[i];
        vec3$f.scale(tmp, n, vec3$f.dot(n, t));
        vec3$f.sub(tmp, t, tmp);
        vec3$f.normalize(tmp, tmp);
        vec3$f.cross(nCrossT, n, t);
        tangents[i * 4] = tmp[0];
        tangents[i * 4 + 1] = tmp[1];
        tangents[i * 4 + 2] = tmp[2];
        tangents[i * 4 + 3] = vec3$f.dot(nCrossT, tan2[i]) < 0 ? -1 : 1;
      }
      this.dirty();
    },
    /**
     * If vertices are not shared by different indices.
     */
    isUniqueVertex: function() {
      if (this.isUseIndices()) {
        return this.vertexCount === this.indices.length;
      } else {
        return true;
      }
    },
    /**
     * Create a unique vertex for each index.
     */
    generateUniqueVertex: function() {
      if (!this.vertexCount || !this.indices) {
        return;
      }
      if (this.indices.length > 65535) {
        this.indices = new vendor.Uint32Array(this.indices);
      }
      var attributes = this.attributes;
      var indices = this.indices;
      var attributeNameList = this.getEnabledAttributes();
      var oldAttrValues = {};
      for (var a = 0; a < attributeNameList.length; a++) {
        var name = attributeNameList[a];
        oldAttrValues[name] = attributes[name].value;
        attributes[name].init(this.indices.length);
      }
      var cursor = 0;
      for (var i = 0; i < indices.length; i++) {
        var ii = indices[i];
        for (var a = 0; a < attributeNameList.length; a++) {
          var name = attributeNameList[a];
          var array = attributes[name].value;
          var size = attributes[name].size;
          for (var k = 0; k < size; k++) {
            array[cursor * size + k] = oldAttrValues[name][ii * size + k];
          }
        }
        indices[i] = cursor;
        cursor++;
      }
      this.dirty();
    },
    /**
     * Generate barycentric coordinates for wireframe draw.
     */
    generateBarycentric: function() {
      if (!this.vertexCount) {
        return;
      }
      if (!this.isUniqueVertex()) {
        this.generateUniqueVertex();
      }
      var attributes = this.attributes;
      var array = attributes.barycentric.value;
      var indices = this.indices;
      if (array && array.length === indices.length * 3) {
        return;
      }
      array = attributes.barycentric.value = new Float32Array(indices.length * 3);
      for (var i = 0; i < (indices ? indices.length : this.vertexCount / 3); ) {
        for (var j = 0; j < 3; j++) {
          var ii = indices ? indices[i++] : i * 3 + j;
          array[ii * 3 + j] = 1;
        }
      }
      this.dirty();
    },
    /**
     * Apply transform to geometry attributes.
     * @param {clay.Matrix4} matrix
     */
    applyTransform: function(matrix) {
      var attributes = this.attributes;
      var positions = attributes.position.value;
      var normals = attributes.normal.value;
      var tangents = attributes.tangent.value;
      matrix = matrix.array;
      var inverseTransposeMatrix = mat4$2.create();
      mat4$2.invert(inverseTransposeMatrix, matrix);
      mat4$2.transpose(inverseTransposeMatrix, inverseTransposeMatrix);
      var vec3TransformMat4 = vec3$f.transformMat4;
      var vec3ForEach = vec3$f.forEach;
      vec3ForEach(positions, 3, 0, null, vec3TransformMat4, matrix);
      if (normals) {
        vec3ForEach(normals, 3, 0, null, vec3TransformMat4, inverseTransposeMatrix);
      }
      if (tangents) {
        vec3ForEach(tangents, 4, 0, null, vec3TransformMat4, inverseTransposeMatrix);
      }
      if (this.boundingBox) {
        this.updateBoundingBox();
      }
    },
    /**
     * Dispose geometry data in GL context.
     * @param {clay.Renderer} renderer
     */
    dispose: function(renderer) {
      var cache = this._cache;
      cache.use(renderer.__uid__);
      var chunks = cache.get("chunks");
      if (chunks) {
        for (var c = 0; c < chunks.length; c++) {
          var chunk = chunks[c];
          for (var k = 0; k < chunk.attributeBuffers.length; k++) {
            var attribs = chunk.attributeBuffers[k];
            renderer.gl.deleteBuffer(attribs.buffer);
          }
          if (chunk.indicesBuffer) {
            renderer.gl.deleteBuffer(chunk.indicesBuffer.buffer);
          }
        }
      }
      if (this.__vaoCache) {
        var vaoExt = renderer.getGLExtension("OES_vertex_array_object");
        for (var id in this.__vaoCache) {
          var vao = this.__vaoCache[id].vao;
          if (vao) {
            vaoExt.deleteVertexArrayOES(vao);
          }
        }
      }
      this.__vaoCache = {};
      cache.deleteContext(renderer.__uid__);
    }
  }
);
Geometry.STATIC_DRAW = GeometryBase.STATIC_DRAW;
Geometry.DYNAMIC_DRAW = GeometryBase.DYNAMIC_DRAW;
Geometry.STREAM_DRAW = GeometryBase.STREAM_DRAW;
Geometry.AttributeBuffer = GeometryBase.AttributeBuffer;
Geometry.IndicesBuffer = GeometryBase.IndicesBuffer;
Geometry.Attribute = Attribute;
const calcAmbientSHLightEssl = "vec3 calcAmbientSHLight(int idx, vec3 N) {\n int offset = 9 * idx;\n return ambientSHLightCoefficients[0]\n + ambientSHLightCoefficients[1] * N.x\n + ambientSHLightCoefficients[2] * N.y\n + ambientSHLightCoefficients[3] * N.z\n + ambientSHLightCoefficients[4] * N.x * N.z\n + ambientSHLightCoefficients[5] * N.z * N.y\n + ambientSHLightCoefficients[6] * N.y * N.x\n + ambientSHLightCoefficients[7] * (3.0 * N.z * N.z - 1.0)\n + ambientSHLightCoefficients[8] * (N.x * N.x - N.y * N.y);\n}";
var uniformVec3Prefix = "uniform vec3 ";
var uniformFloatPrefix = "uniform float ";
var exportHeaderPrefix = "@export clay.header.";
var exportEnd = "@end";
var unconfigurable = ":unconfigurable;";
const lightShader = [
  exportHeaderPrefix + "directional_light",
  uniformVec3Prefix + "directionalLightDirection[DIRECTIONAL_LIGHT_COUNT]" + unconfigurable,
  uniformVec3Prefix + "directionalLightColor[DIRECTIONAL_LIGHT_COUNT]" + unconfigurable,
  exportEnd,
  exportHeaderPrefix + "ambient_light",
  uniformVec3Prefix + "ambientLightColor[AMBIENT_LIGHT_COUNT]" + unconfigurable,
  exportEnd,
  exportHeaderPrefix + "ambient_sh_light",
  uniformVec3Prefix + "ambientSHLightColor[AMBIENT_SH_LIGHT_COUNT]" + unconfigurable,
  uniformVec3Prefix + "ambientSHLightCoefficients[AMBIENT_SH_LIGHT_COUNT * 9]" + unconfigurable,
  calcAmbientSHLightEssl,
  exportEnd,
  exportHeaderPrefix + "ambient_cubemap_light",
  uniformVec3Prefix + "ambientCubemapLightColor[AMBIENT_CUBEMAP_LIGHT_COUNT]" + unconfigurable,
  "uniform samplerCube ambientCubemapLightCubemap[AMBIENT_CUBEMAP_LIGHT_COUNT]" + unconfigurable,
  "uniform sampler2D ambientCubemapLightBRDFLookup[AMBIENT_CUBEMAP_LIGHT_COUNT]" + unconfigurable,
  exportEnd,
  exportHeaderPrefix + "point_light",
  uniformVec3Prefix + "pointLightPosition[POINT_LIGHT_COUNT]" + unconfigurable,
  uniformFloatPrefix + "pointLightRange[POINT_LIGHT_COUNT]" + unconfigurable,
  uniformVec3Prefix + "pointLightColor[POINT_LIGHT_COUNT]" + unconfigurable,
  exportEnd,
  exportHeaderPrefix + "spot_light",
  uniformVec3Prefix + "spotLightPosition[SPOT_LIGHT_COUNT]" + unconfigurable,
  uniformVec3Prefix + "spotLightDirection[SPOT_LIGHT_COUNT]" + unconfigurable,
  uniformFloatPrefix + "spotLightRange[SPOT_LIGHT_COUNT]" + unconfigurable,
  uniformFloatPrefix + "spotLightUmbraAngleCosine[SPOT_LIGHT_COUNT]" + unconfigurable,
  uniformFloatPrefix + "spotLightPenumbraAngleCosine[SPOT_LIGHT_COUNT]" + unconfigurable,
  uniformFloatPrefix + "spotLightFalloffFactor[SPOT_LIGHT_COUNT]" + unconfigurable,
  uniformVec3Prefix + "spotLightColor[SPOT_LIGHT_COUNT]" + unconfigurable,
  exportEnd
].join("\n");
Shader["import"](lightShader);
var Light = Node$1.extend(
  function() {
    return (
      /** @lends clay.Light# */
      {
        /**
         * Light RGB color
         * @type {number[]}
         */
        color: [1, 1, 1],
        /**
         * Light intensity
         * @type {number}
         */
        intensity: 1,
        // Config for shadow map
        /**
         * If light cast shadow
         * @type {boolean}
         */
        castShadow: true,
        /**
         * Shadow map size
         * @type {number}
         */
        shadowResolution: 512,
        /**
         * Light group, shader with same `lightGroup` will be affected
         *
         * Only useful in forward rendering
         * @type {number}
         */
        group: 0
      }
    );
  },
  /** @lends clay.Light.prototype. */
  {
    /**
     * Light type
     * @type {string}
     * @memberOf clay.Light#
     */
    type: "",
    /**
     * @return {clay.Light}
     * @memberOf clay.Light.prototype
     */
    clone: function() {
      var light = Node$1.prototype.clone.call(this);
      light.color = Array.prototype.slice.call(this.color);
      light.intensity = this.intensity;
      light.castShadow = this.castShadow;
      light.shadowResolution = this.shadowResolution;
      return light;
    }
  }
);
var Plane$1 = function(normal2, distance) {
  this.normal = normal2 || new Vector3(0, 1, 0);
  this.distance = distance || 0;
};
Plane$1.prototype = {
  constructor: Plane$1,
  /**
   * Distance from a given point to the plane
   * @param  {clay.Vector3} point
   * @return {number}
   */
  distanceToPoint: function(point) {
    return vec3$f.dot(point.array, this.normal.array) - this.distance;
  },
  /**
   * Calculate the projection point on the plane
   * @param  {clay.Vector3} point
   * @param  {clay.Vector3} out
   * @return {clay.Vector3}
   */
  projectPoint: function(point, out) {
    if (!out) {
      out = new Vector3();
    }
    var d = this.distanceToPoint(point);
    vec3$f.scaleAndAdd(out.array, point.array, this.normal.array, -d);
    out._dirty = true;
    return out;
  },
  /**
   * Normalize the plane's normal and calculate the distance
   */
  normalize: function() {
    var invLen = 1 / vec3$f.len(this.normal.array);
    vec3$f.scale(this.normal.array, invLen);
    this.distance *= invLen;
  },
  /**
   * If the plane intersect a frustum
   * @param  {clay.Frustum} Frustum
   * @return {boolean}
   */
  intersectFrustum: function(frustum) {
    var coords = frustum.vertices;
    var normal2 = this.normal.array;
    var onPlane = vec3$f.dot(coords[0].array, normal2) > this.distance;
    for (var i = 1; i < 8; i++) {
      if (vec3$f.dot(coords[i].array, normal2) > this.distance != onPlane) {
        return true;
      }
    }
  },
  /**
   * Calculate the intersection point between plane and a given line
   * @function
   * @param {clay.Vector3} start start point of line
   * @param {clay.Vector3} end end point of line
   * @param {clay.Vector3} [out]
   * @return {clay.Vector3}
   */
  intersectLine: function() {
    var rd = vec3$f.create();
    return function(start, end, out) {
      var d0 = this.distanceToPoint(start);
      var d1 = this.distanceToPoint(end);
      if (d0 > 0 && d1 > 0 || d0 < 0 && d1 < 0) {
        return null;
      }
      var pn = this.normal.array;
      var d = this.distance;
      var ro = start.array;
      vec3$f.sub(rd, end.array, start.array);
      vec3$f.normalize(rd, rd);
      var divider = vec3$f.dot(pn, rd);
      if (divider === 0) {
        return null;
      }
      if (!out) {
        out = new Vector3();
      }
      var t = (vec3$f.dot(pn, ro) - d) / divider;
      vec3$f.scaleAndAdd(out.array, ro, rd, -t);
      out._dirty = true;
      return out;
    };
  }(),
  /**
   * Apply an affine transform matrix to plane
   * @function
   * @return {clay.Matrix4}
   */
  applyTransform: function() {
    var inverseTranspose = mat4$2.create();
    var normalv4 = vec4$1.create();
    var pointv4 = vec4$1.create();
    pointv4[3] = 1;
    return function(m4) {
      m4 = m4.array;
      vec3$f.scale(pointv4, this.normal.array, this.distance);
      vec4$1.transformMat4(pointv4, pointv4, m4);
      this.distance = vec3$f.dot(pointv4, this.normal.array);
      mat4$2.invert(inverseTranspose, m4);
      mat4$2.transpose(inverseTranspose, inverseTranspose);
      normalv4[3] = 0;
      vec3$f.copy(normalv4, this.normal.array);
      vec4$1.transformMat4(normalv4, normalv4, inverseTranspose);
      vec3$f.copy(this.normal.array, normalv4);
    };
  }(),
  /**
   * Copy from another plane
   * @param  {clay.Vector3} plane
   */
  copy: function(plane) {
    vec3$f.copy(this.normal.array, plane.normal.array);
    this.normal._dirty = true;
    this.distance = plane.distance;
  },
  /**
   * Clone a new plane
   * @return {clay.Plane}
   */
  clone: function() {
    var plane = new Plane$1();
    plane.copy(this);
    return plane;
  }
};
var vec3Set = vec3$f.set;
var vec3Copy = vec3$f.copy;
var vec3TranformMat4 = vec3$f.transformMat4;
var mathMin = Math.min;
var mathMax = Math.max;
var Frustum = function() {
  this.planes = [];
  for (var i = 0; i < 6; i++) {
    this.planes.push(new Plane$1());
  }
  this.boundingBox = new BoundingBox();
  this.vertices = [];
  for (var i = 0; i < 8; i++) {
    this.vertices[i] = vec3$f.fromValues(0, 0, 0);
  }
};
Frustum.prototype = {
  // http://web.archive.org/web/20120531231005/http://crazyjoke.free.fr/doc/3D/plane%20extraction.pdf
  /**
   * Set frustum from a projection matrix
   * @param {clay.Matrix4} projectionMatrix
   */
  setFromProjection: function(projectionMatrix) {
    var planes = this.planes;
    var m = projectionMatrix.array;
    var m0 = m[0], m1 = m[1], m2 = m[2], m3 = m[3];
    var m4 = m[4], m5 = m[5], m6 = m[6], m7 = m[7];
    var m8 = m[8], m9 = m[9], m10 = m[10], m11 = m[11];
    var m12 = m[12], m13 = m[13], m14 = m[14], m15 = m[15];
    vec3Set(planes[0].normal.array, m3 - m0, m7 - m4, m11 - m8);
    planes[0].distance = -(m15 - m12);
    planes[0].normalize();
    vec3Set(planes[1].normal.array, m3 + m0, m7 + m4, m11 + m8);
    planes[1].distance = -(m15 + m12);
    planes[1].normalize();
    vec3Set(planes[2].normal.array, m3 + m1, m7 + m5, m11 + m9);
    planes[2].distance = -(m15 + m13);
    planes[2].normalize();
    vec3Set(planes[3].normal.array, m3 - m1, m7 - m5, m11 - m9);
    planes[3].distance = -(m15 - m13);
    planes[3].normalize();
    vec3Set(planes[4].normal.array, m3 - m2, m7 - m6, m11 - m10);
    planes[4].distance = -(m15 - m14);
    planes[4].normalize();
    vec3Set(planes[5].normal.array, m3 + m2, m7 + m6, m11 + m10);
    planes[5].distance = -(m15 + m14);
    planes[5].normalize();
    var boundingBox = this.boundingBox;
    var vertices = this.vertices;
    if (m15 === 0) {
      var aspect = m5 / m0;
      var zNear = -m14 / (m10 - 1);
      var zFar = -m14 / (m10 + 1);
      var farY = -zFar / m5;
      var nearY = -zNear / m5;
      boundingBox.min.set(-farY * aspect, -farY, zFar);
      boundingBox.max.set(farY * aspect, farY, zNear);
      vec3Set(vertices[0], -farY * aspect, -farY, zFar);
      vec3Set(vertices[1], -farY * aspect, farY, zFar);
      vec3Set(vertices[2], farY * aspect, -farY, zFar);
      vec3Set(vertices[3], farY * aspect, farY, zFar);
      vec3Set(vertices[4], -nearY * aspect, -nearY, zNear);
      vec3Set(vertices[5], -nearY * aspect, nearY, zNear);
      vec3Set(vertices[6], nearY * aspect, -nearY, zNear);
      vec3Set(vertices[7], nearY * aspect, nearY, zNear);
    } else {
      var left = (-1 - m12) / m0;
      var right = (1 - m12) / m0;
      var top = (1 - m13) / m5;
      var bottom = (-1 - m13) / m5;
      var near = (-1 - m14) / m10;
      var far = (1 - m14) / m10;
      boundingBox.min.set(Math.min(left, right), Math.min(bottom, top), Math.min(far, near));
      boundingBox.max.set(Math.max(right, left), Math.max(top, bottom), Math.max(near, far));
      var min = boundingBox.min.array;
      var max = boundingBox.max.array;
      vec3Set(vertices[0], min[0], min[1], min[2]);
      vec3Set(vertices[1], min[0], max[1], min[2]);
      vec3Set(vertices[2], max[0], min[1], min[2]);
      vec3Set(vertices[3], max[0], max[1], min[2]);
      vec3Set(vertices[4], min[0], min[1], max[2]);
      vec3Set(vertices[5], min[0], max[1], max[2]);
      vec3Set(vertices[6], max[0], min[1], max[2]);
      vec3Set(vertices[7], max[0], max[1], max[2]);
    }
  },
  /**
   * Apply a affine transform matrix and set to the given bounding box
   * @function
   * @param {clay.BoundingBox}
   * @param {clay.Matrix4}
   * @return {clay.BoundingBox}
   */
  getTransformedBoundingBox: function() {
    var tmpVec3 = vec3$f.create();
    return function(bbox, matrix) {
      var vertices = this.vertices;
      var m4 = matrix.array;
      var min = bbox.min;
      var max = bbox.max;
      var minArr = min.array;
      var maxArr = max.array;
      var v = vertices[0];
      vec3TranformMat4(tmpVec3, v, m4);
      vec3Copy(minArr, tmpVec3);
      vec3Copy(maxArr, tmpVec3);
      for (var i = 1; i < 8; i++) {
        v = vertices[i];
        vec3TranformMat4(tmpVec3, v, m4);
        minArr[0] = mathMin(tmpVec3[0], minArr[0]);
        minArr[1] = mathMin(tmpVec3[1], minArr[1]);
        minArr[2] = mathMin(tmpVec3[2], minArr[2]);
        maxArr[0] = mathMax(tmpVec3[0], maxArr[0]);
        maxArr[1] = mathMax(tmpVec3[1], maxArr[1]);
        maxArr[2] = mathMax(tmpVec3[2], maxArr[2]);
      }
      min._dirty = true;
      max._dirty = true;
      return bbox;
    };
  }()
};
var Camera = Node$1.extend(
  function() {
    return (
      /** @lends clay.Camera# */
      {
        /**
         * Camera projection matrix
         * @type {clay.Matrix4}
         */
        projectionMatrix: new Matrix4(),
        /**
         * Inverse of camera projection matrix
         * @type {clay.Matrix4}
         */
        invProjectionMatrix: new Matrix4(),
        /**
         * View matrix, equal to inverse of camera's world matrix
         * @type {clay.Matrix4}
         */
        viewMatrix: new Matrix4(),
        /**
         * Camera frustum in view space
         * @type {clay.Frustum}
         */
        frustum: new Frustum()
      }
    );
  },
  function() {
    this.update(true);
  },
  /** @lends clay.Camera.prototype */
  {
    update: function(force) {
      Node$1.prototype.update.call(this, force);
      Matrix4.invert(this.viewMatrix, this.worldTransform);
      this.updateProjectionMatrix();
      Matrix4.invert(this.invProjectionMatrix, this.projectionMatrix);
      this.frustum.setFromProjection(this.projectionMatrix);
    },
    /**
     * Set camera view matrix
     */
    setViewMatrix: function(viewMatrix) {
      Matrix4.copy(this.viewMatrix, viewMatrix);
      Matrix4.invert(this.worldTransform, viewMatrix);
      this.decomposeWorldTransform();
    },
    /**
     * Decompose camera projection matrix
     */
    decomposeProjectionMatrix: function() {
    },
    /**
     * Set camera projection matrix
     * @param {clay.Matrix4} projectionMatrix
     */
    setProjectionMatrix: function(projectionMatrix) {
      Matrix4.copy(this.projectionMatrix, projectionMatrix);
      Matrix4.invert(this.invProjectionMatrix, projectionMatrix);
      this.decomposeProjectionMatrix();
    },
    /**
     * Update projection matrix, called after update
     */
    updateProjectionMatrix: function() {
    },
    /**
     * Cast a picking ray from camera near plane to far plane
     * @function
     * @param {clay.Vector2} ndc
     * @param {clay.Ray} [out]
     * @return {clay.Ray}
     */
    castRay: function() {
      var v4 = vec4$1.create();
      return function(ndc2, out) {
        var ray = out !== void 0 ? out : new Ray();
        var x = ndc2.array[0];
        var y = ndc2.array[1];
        vec4$1.set(v4, x, y, -1, 1);
        vec4$1.transformMat4(v4, v4, this.invProjectionMatrix.array);
        vec4$1.transformMat4(v4, v4, this.worldTransform.array);
        vec3$f.scale(ray.origin.array, v4, 1 / v4[3]);
        vec4$1.set(v4, x, y, 1, 1);
        vec4$1.transformMat4(v4, v4, this.invProjectionMatrix.array);
        vec4$1.transformMat4(v4, v4, this.worldTransform.array);
        vec3$f.scale(v4, v4, 1 / v4[3]);
        vec3$f.sub(ray.direction.array, v4, ray.origin.array);
        vec3$f.normalize(ray.direction.array, ray.direction.array);
        ray.direction._dirty = true;
        ray.origin._dirty = true;
        return ray;
      };
    }()
    /**
     * @function
     * @name clone
     * @return {clay.Camera}
     * @memberOf clay.Camera.prototype
     */
  }
);
var IDENTITY = mat4$2.create();
var WORLDVIEW = mat4$2.create();
var programKeyCache = {};
function getProgramKey(lightNumbers) {
  var defineStr = [];
  var lightTypes = Object.keys(lightNumbers);
  lightTypes.sort();
  for (var i = 0; i < lightTypes.length; i++) {
    var lightType = lightTypes[i];
    defineStr.push(lightType + " " + lightNumbers[lightType]);
  }
  var key = defineStr.join("\n");
  if (programKeyCache[key]) {
    return programKeyCache[key];
  }
  var id = util.genGUID();
  programKeyCache[key] = id;
  return id;
}
function RenderList() {
  this.opaque = [];
  this.transparent = [];
  this._opaqueCount = 0;
  this._transparentCount = 0;
}
RenderList.prototype.startCount = function() {
  this._opaqueCount = 0;
  this._transparentCount = 0;
};
RenderList.prototype.add = function(object, isTransparent) {
  if (isTransparent) {
    this.transparent[this._transparentCount++] = object;
  } else {
    this.opaque[this._opaqueCount++] = object;
  }
};
RenderList.prototype.endCount = function() {
  this.transparent.length = this._transparentCount;
  this.opaque.length = this._opaqueCount;
};
var Scene = Node$1.extend(
  function() {
    return (
      /** @lends clay.Scene# */
      {
        /**
         * Global material of scene
         * @type {clay.Material}
         */
        material: null,
        lights: [],
        /**
         * Scene bounding box in view space.
         * Used when camera needs to adujst the near and far plane automatically
         * so that the view frustum contains the visible objects as tightly as possible.
         * Notice:
         *  It is updated after rendering (in the step of frustum culling passingly). So may be not so accurate, but saves a lot of calculation
         *
         * @type {clay.BoundingBox}
         */
        viewBoundingBoxLastFrame: new BoundingBox(),
        // Uniforms for shadow map.
        shadowUniforms: {},
        _cameraList: [],
        // Properties to save the light information in the scene
        // Will be set in the render function
        _lightUniforms: {},
        _previousLightNumber: {},
        _lightNumber: {
          // groupId: {
          // POINT_LIGHT: 0,
          // DIRECTIONAL_LIGHT: 0,
          // SPOT_LIGHT: 0,
          // AMBIENT_LIGHT: 0,
          // AMBIENT_SH_LIGHT: 0
          // }
        },
        _lightProgramKeys: {},
        _nodeRepository: {},
        _renderLists: new LRU$1(20)
      }
    );
  },
  function() {
    this._scene = this;
  },
  /** @lends clay.Scene.prototype. */
  {
    // Add node to scene
    addToScene: function(node) {
      if (node instanceof Camera) {
        if (this._cameraList.length > 0) {
          console.warn("Found multiple camera in one scene. Use the fist one.");
        }
        this._cameraList.push(node);
      } else if (node instanceof Light) {
        this.lights.push(node);
      }
      if (node.name) {
        this._nodeRepository[node.name] = node;
      }
    },
    // Remove node from scene
    removeFromScene: function(node) {
      var idx;
      if (node instanceof Camera) {
        idx = this._cameraList.indexOf(node);
        if (idx >= 0) {
          this._cameraList.splice(idx, 1);
        }
      } else if (node instanceof Light) {
        idx = this.lights.indexOf(node);
        if (idx >= 0) {
          this.lights.splice(idx, 1);
        }
      }
      if (node.name) {
        delete this._nodeRepository[node.name];
      }
    },
    /**
     * Get node by name
     * @param  {string} name
     * @return {Node}
     * @DEPRECATED
     */
    getNode: function(name) {
      return this._nodeRepository[name];
    },
    /**
     * Set main camera of the scene.
     * @param {claygl.Camera} camera
     */
    setMainCamera: function(camera2) {
      var idx = this._cameraList.indexOf(camera2);
      if (idx >= 0) {
        this._cameraList.splice(idx, 1);
      }
      this._cameraList.unshift(camera2);
    },
    /**
     * Get main camera of the scene.
     */
    getMainCamera: function() {
      return this._cameraList[0];
    },
    getLights: function() {
      return this.lights;
    },
    updateLights: function() {
      var lights = this.lights;
      this._previousLightNumber = this._lightNumber;
      var lightNumber = {};
      for (var i = 0; i < lights.length; i++) {
        var light = lights[i];
        if (light.invisible) {
          continue;
        }
        var group = light.group;
        if (!lightNumber[group]) {
          lightNumber[group] = {};
        }
        lightNumber[group][light.type] = lightNumber[group][light.type] || 0;
        lightNumber[group][light.type]++;
      }
      this._lightNumber = lightNumber;
      for (var groupId in lightNumber) {
        this._lightProgramKeys[groupId] = getProgramKey(lightNumber[groupId]);
      }
      this._updateLightUniforms();
    },
    /**
     * Clone a node and it's children, including mesh, camera, light, etc.
     * Unlike using `Node#clone`. It will clone skeleton and remap the joints. Material will also be cloned.
     *
     * @param {clay.Node} node
     * @return {clay.Node}
     */
    cloneNode: function(node) {
      var newNode = node.clone();
      var clonedNodesMap = {};
      function buildNodesMap(sNode, tNode) {
        clonedNodesMap[sNode.__uid__] = tNode;
        for (var i = 0; i < sNode._children.length; i++) {
          var sChild = sNode._children[i];
          var tChild = tNode._children[i];
          buildNodesMap(sChild, tChild);
        }
      }
      buildNodesMap(node, newNode);
      newNode.traverse(function(newChild) {
        if (newChild.skeleton) {
          newChild.skeleton = newChild.skeleton.clone(clonedNodesMap);
        }
        if (newChild.material) {
          newChild.material = newChild.material.clone();
        }
      });
      return newNode;
    },
    /**
     * Traverse the scene and add the renderable object to the render list.
     * It needs camera for the frustum culling.
     *
     * @param {clay.Camera} camera
     * @param {boolean} updateSceneBoundingBox
     * @return {clay.Scene.RenderList}
     */
    updateRenderList: function(camera2, updateSceneBoundingBox) {
      var id = camera2.__uid__;
      var renderList = this._renderLists.get(id);
      if (!renderList) {
        renderList = new RenderList();
        this._renderLists.put(id, renderList);
      }
      renderList.startCount();
      if (updateSceneBoundingBox) {
        this.viewBoundingBoxLastFrame.min.set(Infinity, Infinity, Infinity);
        this.viewBoundingBoxLastFrame.max.set(-Infinity, -Infinity, -Infinity);
      }
      var sceneMaterialTransparent = this.material && this.material.transparent || false;
      this._doUpdateRenderList(this, camera2, sceneMaterialTransparent, renderList, updateSceneBoundingBox);
      renderList.endCount();
      return renderList;
    },
    /**
     * Get render list. Used after {@link clay.Scene#updateRenderList}
     * @param {clay.Camera} camera
     * @return {clay.Scene.RenderList}
     */
    getRenderList: function(camera2) {
      return this._renderLists.get(camera2.__uid__);
    },
    _doUpdateRenderList: function(parent, camera2, sceneMaterialTransparent, renderList, updateSceneBoundingBox) {
      if (parent.invisible) {
        return;
      }
      for (var i = 0; i < parent._children.length; i++) {
        var child = parent._children[i];
        if (child.isRenderable()) {
          var worldM = child.isSkinnedMesh() ? IDENTITY : child.worldTransform.array;
          var geometry = child.geometry;
          mat4$2.multiplyAffine(WORLDVIEW, camera2.viewMatrix.array, worldM);
          if (updateSceneBoundingBox && !geometry.boundingBox || !this.isFrustumCulled(child, camera2, WORLDVIEW)) {
            renderList.add(child, child.material.transparent || sceneMaterialTransparent);
          }
        }
        if (child._children.length > 0) {
          this._doUpdateRenderList(child, camera2, sceneMaterialTransparent, renderList, updateSceneBoundingBox);
        }
      }
    },
    /**
     * If an scene object is culled by camera frustum
     *
     * Object can be a renderable or a light
     *
     * @param {clay.Node} object
     * @param {clay.Camera} camera
     * @param {Array.<number>} worldViewMat represented with array
     * @param {Array.<number>} projectionMat represented with array
     */
    isFrustumCulled: function() {
      var cullingBoundingBox = new BoundingBox();
      var cullingMatrix = new Matrix4();
      return function(object, camera2, worldViewMat) {
        var geoBBox = object.boundingBox;
        if (!geoBBox) {
          if (object.skeleton && object.skeleton.boundingBox) {
            geoBBox = object.skeleton.boundingBox;
          } else {
            geoBBox = object.geometry.boundingBox;
          }
        }
        if (!geoBBox) {
          return false;
        }
        cullingMatrix.array = worldViewMat;
        cullingBoundingBox.transformFrom(geoBBox, cullingMatrix);
        if (object.castShadow) {
          this.viewBoundingBoxLastFrame.union(cullingBoundingBox);
        }
        if (object.frustumCulling) {
          if (!cullingBoundingBox.intersectBoundingBox(camera2.frustum.boundingBox)) {
            return true;
          }
          cullingMatrix.array = camera2.projectionMatrix.array;
          if (cullingBoundingBox.max.array[2] > 0 && cullingBoundingBox.min.array[2] < 0) {
            cullingBoundingBox.max.array[2] = -1e-20;
          }
          cullingBoundingBox.applyProjection(cullingMatrix);
          var min = cullingBoundingBox.min.array;
          var max = cullingBoundingBox.max.array;
          if (max[0] < -1 || min[0] > 1 || max[1] < -1 || min[1] > 1 || max[2] < -1 || min[2] > 1) {
            return true;
          }
        }
        return false;
      };
    }(),
    _updateLightUniforms: function() {
      var lights = this.lights;
      lights.sort(lightSortFunc);
      var lightUniforms = this._lightUniforms;
      for (var group in lightUniforms) {
        for (var symbol in lightUniforms[group]) {
          lightUniforms[group][symbol].value.length = 0;
        }
      }
      for (var i = 0; i < lights.length; i++) {
        var light = lights[i];
        if (light.invisible) {
          continue;
        }
        var group = light.group;
        for (var symbol in light.uniformTemplates) {
          var uniformTpl = light.uniformTemplates[symbol];
          var value = uniformTpl.value(light);
          if (value == null) {
            continue;
          }
          if (!lightUniforms[group]) {
            lightUniforms[group] = {};
          }
          if (!lightUniforms[group][symbol]) {
            lightUniforms[group][symbol] = {
              type: "",
              value: []
            };
          }
          var lu = lightUniforms[group][symbol];
          lu.type = uniformTpl.type + "v";
          switch (uniformTpl.type) {
            case "1i":
            case "1f":
            case "t":
              lu.value.push(value);
              break;
            case "2f":
            case "3f":
            case "4f":
              for (var j = 0; j < value.length; j++) {
                lu.value.push(value[j]);
              }
              break;
            default:
              console.error("Unkown light uniform type " + uniformTpl.type);
          }
        }
      }
    },
    getLightGroups: function() {
      var lightGroups = [];
      for (var groupId in this._lightNumber) {
        lightGroups.push(groupId);
      }
      return lightGroups;
    },
    getNumberChangedLightGroups: function() {
      var lightGroups = [];
      for (var groupId in this._lightNumber) {
        if (this.isLightNumberChanged(groupId)) {
          lightGroups.push(groupId);
        }
      }
      return lightGroups;
    },
    // Determine if light group is different with since last frame
    // Used to determine whether to update shader and scene's uniforms in Renderer.render
    isLightNumberChanged: function(lightGroup) {
      var prevLightNumber = this._previousLightNumber;
      var currentLightNumber = this._lightNumber;
      for (var type in currentLightNumber[lightGroup]) {
        if (!prevLightNumber[lightGroup]) {
          return true;
        }
        if (currentLightNumber[lightGroup][type] !== prevLightNumber[lightGroup][type]) {
          return true;
        }
      }
      for (var type in prevLightNumber[lightGroup]) {
        if (!currentLightNumber[lightGroup]) {
          return true;
        }
        if (currentLightNumber[lightGroup][type] !== prevLightNumber[lightGroup][type]) {
          return true;
        }
      }
      return false;
    },
    getLightsNumbers: function(lightGroup) {
      return this._lightNumber[lightGroup];
    },
    getProgramKey: function(lightGroup) {
      return this._lightProgramKeys[lightGroup];
    },
    setLightUniforms: /* @__PURE__ */ function() {
      function setUniforms(uniforms, program, renderer) {
        for (var symbol in uniforms) {
          var lu = uniforms[symbol];
          if (lu.type === "tv") {
            if (!program.hasUniform(symbol)) {
              continue;
            }
            var texSlots = [];
            for (var i = 0; i < lu.value.length; i++) {
              var texture = lu.value[i];
              var slot = program.takeCurrentTextureSlot(renderer, texture);
              texSlots.push(slot);
            }
            program.setUniform(renderer.gl, "1iv", symbol, texSlots);
          } else {
            program.setUniform(renderer.gl, lu.type, symbol, lu.value);
          }
        }
      }
      return function(program, lightGroup, renderer) {
        setUniforms(this._lightUniforms[lightGroup], program, renderer);
        setUniforms(this.shadowUniforms, program, renderer);
      };
    }(),
    /**
     * Dispose self, clear all the scene objects
     * But resources of gl like texuture, shader will not be disposed.
     * Mostly you should use disposeScene method in Renderer to do dispose.
     */
    dispose: function() {
      this.material = null;
      this._opaqueList = [];
      this._transparentList = [];
      this.lights = [];
      this._lightUniforms = {};
      this._lightNumber = {};
      this._nodeRepository = {};
    }
  }
);
function lightSortFunc(a, b) {
  if (b.castShadow && !a.castShadow) {
    return true;
  }
}
var Entry = /* @__PURE__ */ function() {
  function Entry2(val) {
    this.value = val;
  }
  return Entry2;
}();
var LinkedList = function() {
  function LinkedList2() {
    this._len = 0;
  }
  LinkedList2.prototype.insert = function(val) {
    var entry = new Entry(val);
    this.insertEntry(entry);
    return entry;
  };
  LinkedList2.prototype.insertEntry = function(entry) {
    if (!this.head) {
      this.head = this.tail = entry;
    } else {
      this.tail.next = entry;
      entry.prev = this.tail;
      entry.next = null;
      this.tail = entry;
    }
    this._len++;
  };
  LinkedList2.prototype.remove = function(entry) {
    var prev = entry.prev;
    var next = entry.next;
    if (prev) {
      prev.next = next;
    } else {
      this.head = next;
    }
    if (next) {
      next.prev = prev;
    } else {
      this.tail = prev;
    }
    entry.next = entry.prev = null;
    this._len--;
  };
  LinkedList2.prototype.len = function() {
    return this._len;
  };
  LinkedList2.prototype.clear = function() {
    this.head = this.tail = null;
    this._len = 0;
  };
  return LinkedList2;
}();
var LRU = function() {
  function LRU2(maxSize) {
    this._list = new LinkedList();
    this._maxSize = 10;
    this._map = {};
    this._maxSize = maxSize;
  }
  LRU2.prototype.put = function(key, value) {
    var list = this._list;
    var map2 = this._map;
    var removed = null;
    if (map2[key] == null) {
      var len = list.len();
      var entry = this._lastRemovedEntry;
      if (len >= this._maxSize && len > 0) {
        var leastUsedEntry = list.head;
        list.remove(leastUsedEntry);
        delete map2[leastUsedEntry.key];
        removed = leastUsedEntry.value;
        this._lastRemovedEntry = leastUsedEntry;
      }
      if (entry) {
        entry.value = value;
      } else {
        entry = new Entry(value);
      }
      entry.key = key;
      list.insertEntry(entry);
      map2[key] = entry;
    }
    return removed;
  };
  LRU2.prototype.get = function(key) {
    var entry = this._map[key];
    var list = this._list;
    if (entry != null) {
      if (entry !== list.tail) {
        list.remove(entry);
        list.insertEntry(entry);
      }
      return entry.value;
    }
  };
  LRU2.prototype.clear = function() {
    this._list.clear();
    this._map = {};
  };
  LRU2.prototype.len = function() {
    return this._list.len();
  };
  return LRU2;
}();
var isPowerOfTwo$1 = mathUtil.isPowerOfTwo;
var targetList = ["px", "nx", "py", "ny", "pz", "nz"];
var TextureCube = Texture.extend(function() {
  return (
    /** @lends clay.TextureCube# */
    {
      /**
       * @type {boolean}
       * @default false
       */
      // PENDING cubemap should not flipY in default.
      // flipY: false,
      /**
       * @type {Object}
       * @property {?HTMLImageElement|HTMLCanvasElemnet} px
       * @property {?HTMLImageElement|HTMLCanvasElemnet} nx
       * @property {?HTMLImageElement|HTMLCanvasElemnet} py
       * @property {?HTMLImageElement|HTMLCanvasElemnet} ny
       * @property {?HTMLImageElement|HTMLCanvasElemnet} pz
       * @property {?HTMLImageElement|HTMLCanvasElemnet} nz
       */
      image: {
        px: null,
        nx: null,
        py: null,
        ny: null,
        pz: null,
        nz: null
      },
      /**
       * Pixels data of each side. Will be ignored if images are set.
       * @type {Object}
       * @property {?Uint8Array} px
       * @property {?Uint8Array} nx
       * @property {?Uint8Array} py
       * @property {?Uint8Array} ny
       * @property {?Uint8Array} pz
       * @property {?Uint8Array} nz
       */
      pixels: {
        px: null,
        nx: null,
        py: null,
        ny: null,
        pz: null,
        nz: null
      },
      /**
       * @type {Array.<Object>}
       */
      mipmaps: []
    }
  );
}, {
  textureType: "textureCube",
  update: function(renderer) {
    var _gl = renderer.gl;
    _gl.bindTexture(_gl.TEXTURE_CUBE_MAP, this._cache.get("webgl_texture"));
    this.updateCommon(renderer);
    var glFormat = this.format;
    var glType = this.type;
    _gl.texParameteri(_gl.TEXTURE_CUBE_MAP, _gl.TEXTURE_WRAP_S, this.getAvailableWrapS());
    _gl.texParameteri(_gl.TEXTURE_CUBE_MAP, _gl.TEXTURE_WRAP_T, this.getAvailableWrapT());
    _gl.texParameteri(_gl.TEXTURE_CUBE_MAP, _gl.TEXTURE_MAG_FILTER, this.getAvailableMagFilter());
    _gl.texParameteri(_gl.TEXTURE_CUBE_MAP, _gl.TEXTURE_MIN_FILTER, this.getAvailableMinFilter());
    var anisotropicExt = renderer.getGLExtension("EXT_texture_filter_anisotropic");
    if (anisotropicExt && this.anisotropic > 1) {
      _gl.texParameterf(_gl.TEXTURE_CUBE_MAP, anisotropicExt.TEXTURE_MAX_ANISOTROPY_EXT, this.anisotropic);
    }
    if (glType === 36193) {
      var halfFloatExt = renderer.getGLExtension("OES_texture_half_float");
      if (!halfFloatExt) {
        glType = glenum.FLOAT;
      }
    }
    if (this.mipmaps.length) {
      var width = this.width;
      var height = this.height;
      for (var i = 0; i < this.mipmaps.length; i++) {
        var mipmap = this.mipmaps[i];
        this._updateTextureData(_gl, mipmap, i, width, height, glFormat, glType);
        width /= 2;
        height /= 2;
      }
    } else {
      this._updateTextureData(_gl, this, 0, this.width, this.height, glFormat, glType);
      if (!this.NPOT && this.useMipmap) {
        _gl.generateMipmap(_gl.TEXTURE_CUBE_MAP);
      }
    }
    _gl.bindTexture(_gl.TEXTURE_CUBE_MAP, null);
  },
  _updateTextureData: function(_gl, data, level, width, height, glFormat, glType) {
    for (var i = 0; i < 6; i++) {
      var target = targetList[i];
      var img = data.image && data.image[target];
      if (img) {
        _gl.texImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, level, glFormat, glFormat, glType, img);
      } else {
        _gl.texImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, level, glFormat, width, height, 0, glFormat, glType, data.pixels && data.pixels[target]);
      }
    }
  },
  /**
   * @param  {clay.Renderer} renderer
   * @memberOf clay.TextureCube.prototype
   */
  generateMipmap: function(renderer) {
    var _gl = renderer.gl;
    if (this.useMipmap && !this.NPOT) {
      _gl.bindTexture(_gl.TEXTURE_CUBE_MAP, this._cache.get("webgl_texture"));
      _gl.generateMipmap(_gl.TEXTURE_CUBE_MAP);
    }
  },
  bind: function(renderer) {
    renderer.gl.bindTexture(renderer.gl.TEXTURE_CUBE_MAP, this.getWebGLTexture(renderer));
  },
  unbind: function(renderer) {
    renderer.gl.bindTexture(renderer.gl.TEXTURE_CUBE_MAP, null);
  },
  // Overwrite the isPowerOfTwo method
  isPowerOfTwo: function() {
    if (this.image.px) {
      return isPowerOfTwo$1(this.image.px.width) && isPowerOfTwo$1(this.image.px.height);
    } else {
      return isPowerOfTwo$1(this.width) && isPowerOfTwo$1(this.height);
    }
  },
  isRenderable: function() {
    if (this.image.px) {
      return isImageRenderable(this.image.px) && isImageRenderable(this.image.nx) && isImageRenderable(this.image.py) && isImageRenderable(this.image.ny) && isImageRenderable(this.image.pz) && isImageRenderable(this.image.nz);
    } else {
      return !!(this.width && this.height);
    }
  },
  load: function(imageList, crossOrigin) {
    var loading = 0;
    var self2 = this;
    util.each(imageList, function(src, target) {
      var image = vendor.createImage();
      if (crossOrigin) {
        image.crossOrigin = crossOrigin;
      }
      image.onload = function() {
        loading--;
        if (loading === 0) {
          self2.dirty();
          self2.trigger("success", self2);
        }
      };
      image.onerror = function() {
        loading--;
      };
      loading++;
      image.src = src;
      self2.image[target] = image;
    });
    return this;
  }
});
Object.defineProperty(TextureCube.prototype, "width", {
  get: function() {
    if (this.image && this.image.px) {
      return this.image.px.width;
    }
    return this._width;
  },
  set: function(value) {
    if (this.image && this.image.px) {
      console.warn("Texture from image can't set width");
    } else {
      if (this._width !== value) {
        this.dirty();
      }
      this._width = value;
    }
  }
});
Object.defineProperty(TextureCube.prototype, "height", {
  get: function() {
    if (this.image && this.image.px) {
      return this.image.px.height;
    }
    return this._height;
  },
  set: function(value) {
    if (this.image && this.image.px) {
      console.warn("Texture from image can't set height");
    } else {
      if (this._height !== value) {
        this.dirty();
      }
      this._height = value;
    }
  }
});
function isImageRenderable(image) {
  return image.width > 0 && image.height > 0;
}
var Perspective = Camera.extend(
  /** @lends clay.camera.Perspective# */
  {
    /**
     * Vertical field of view in degrees
     * @type {number}
     */
    fov: 50,
    /**
     * Aspect ratio, typically viewport width / height
     * @type {number}
     */
    aspect: 1,
    /**
     * Near bound of the frustum
     * @type {number}
     */
    near: 0.1,
    /**
     * Far bound of the frustum
     * @type {number}
     */
    far: 2e3
  },
  /** @lends clay.camera.Perspective.prototype */
  {
    updateProjectionMatrix: function() {
      var rad2 = this.fov / 180 * Math.PI;
      this.projectionMatrix.perspective(rad2, this.aspect, this.near, this.far);
    },
    decomposeProjectionMatrix: function() {
      var m = this.projectionMatrix.array;
      var rad2 = Math.atan(1 / m[5]) * 2;
      this.fov = rad2 / Math.PI * 180;
      this.aspect = m[5] / m[0];
      this.near = m[14] / (m[10] - 1);
      this.far = m[14] / (m[10] + 1);
    },
    /**
     * @return {clay.camera.Perspective}
     */
    clone: function() {
      var camera2 = Camera.prototype.clone.call(this);
      camera2.fov = this.fov;
      camera2.aspect = this.aspect;
      camera2.near = this.near;
      camera2.far = this.far;
      return camera2;
    }
  }
);
var KEY_FRAMEBUFFER = "framebuffer";
var KEY_RENDERBUFFER = "renderbuffer";
var KEY_RENDERBUFFER_WIDTH = KEY_RENDERBUFFER + "_width";
var KEY_RENDERBUFFER_HEIGHT = KEY_RENDERBUFFER + "_height";
var KEY_RENDERBUFFER_ATTACHED = KEY_RENDERBUFFER + "_attached";
var KEY_DEPTHTEXTURE_ATTACHED = "depthtexture_attached";
var GL_FRAMEBUFFER = glenum.FRAMEBUFFER;
var GL_RENDERBUFFER = glenum.RENDERBUFFER;
var GL_DEPTH_ATTACHMENT = glenum.DEPTH_ATTACHMENT;
var GL_COLOR_ATTACHMENT0 = glenum.COLOR_ATTACHMENT0;
var FrameBuffer = Base.extend(
  /** @lends clay.FrameBuffer# */
  {
    /**
     * If use depth buffer
     * @type {boolean}
     */
    depthBuffer: true,
    /**
     * @type {Object}
     */
    viewport: null,
    _width: 0,
    _height: 0,
    _textures: null,
    _boundRenderer: null
  },
  function() {
    this._cache = new Cache();
    this._textures = {};
  },
  /**@lends clay.FrameBuffer.prototype. */
  {
    /**
     * Get attached texture width
     * {number}
     */
    // FIXME Can't use before #bind
    getTextureWidth: function() {
      return this._width;
    },
    /**
     * Get attached texture height
     * {number}
     */
    getTextureHeight: function() {
      return this._height;
    },
    /**
     * Bind the framebuffer to given renderer before rendering
     * @param  {clay.Renderer} renderer
     */
    bind: function(renderer) {
      if (renderer.__currentFrameBuffer) {
        if (renderer.__currentFrameBuffer === this) {
          return;
        }
        console.warn("Renderer already bound with another framebuffer. Unbind it first");
      }
      renderer.__currentFrameBuffer = this;
      var _gl = renderer.gl;
      _gl.bindFramebuffer(GL_FRAMEBUFFER, this._getFrameBufferGL(renderer));
      this._boundRenderer = renderer;
      var cache = this._cache;
      cache.put("viewport", renderer.viewport);
      var hasTextureAttached = false;
      var width;
      var height;
      for (var attachment in this._textures) {
        hasTextureAttached = true;
        var obj = this._textures[attachment];
        if (obj) {
          width = obj.texture.width;
          height = obj.texture.height;
          this._doAttach(renderer, obj.texture, attachment, obj.target);
        }
      }
      this._width = width;
      this._height = height;
      if (!hasTextureAttached && this.depthBuffer) {
        console.error("Must attach texture before bind, or renderbuffer may have incorrect width and height.");
      }
      if (this.viewport) {
        renderer.setViewport(this.viewport);
      } else {
        renderer.setViewport(0, 0, width, height, 1);
      }
      var attachedTextures = cache.get("attached_textures");
      if (attachedTextures) {
        for (var attachment in attachedTextures) {
          if (!this._textures[attachment]) {
            var target = attachedTextures[attachment];
            this._doDetach(_gl, attachment, target);
          }
        }
      }
      if (!cache.get(KEY_DEPTHTEXTURE_ATTACHED) && this.depthBuffer) {
        if (cache.miss(KEY_RENDERBUFFER)) {
          cache.put(KEY_RENDERBUFFER, _gl.createRenderbuffer());
        }
        var renderbuffer = cache.get(KEY_RENDERBUFFER);
        if (width !== cache.get(KEY_RENDERBUFFER_WIDTH) || height !== cache.get(KEY_RENDERBUFFER_HEIGHT)) {
          _gl.bindRenderbuffer(GL_RENDERBUFFER, renderbuffer);
          _gl.renderbufferStorage(GL_RENDERBUFFER, _gl.DEPTH_COMPONENT16, width, height);
          cache.put(KEY_RENDERBUFFER_WIDTH, width);
          cache.put(KEY_RENDERBUFFER_HEIGHT, height);
          _gl.bindRenderbuffer(GL_RENDERBUFFER, null);
        }
        if (!cache.get(KEY_RENDERBUFFER_ATTACHED)) {
          _gl.framebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, renderbuffer);
          cache.put(KEY_RENDERBUFFER_ATTACHED, true);
        }
      }
    },
    /**
     * Unbind the frame buffer after rendering
     * @param  {clay.Renderer} renderer
     */
    unbind: function(renderer) {
      renderer.__currentFrameBuffer = null;
      var _gl = renderer.gl;
      _gl.bindFramebuffer(GL_FRAMEBUFFER, null);
      this._boundRenderer = null;
      this._cache.use(renderer.__uid__);
      var viewport = this._cache.get("viewport");
      if (viewport) {
        renderer.setViewport(viewport);
      }
      this.updateMipmap(renderer);
    },
    // Because the data of texture is changed over time,
    // Here update the mipmaps of texture each time after rendered;
    updateMipmap: function(renderer) {
      var _gl = renderer.gl;
      for (var attachment in this._textures) {
        var obj = this._textures[attachment];
        if (obj) {
          var texture = obj.texture;
          if (!texture.NPOT && texture.useMipmap && texture.minFilter === Texture.LINEAR_MIPMAP_LINEAR) {
            var target = texture.textureType === "textureCube" ? glenum.TEXTURE_CUBE_MAP : glenum.TEXTURE_2D;
            _gl.bindTexture(target, texture.getWebGLTexture(renderer));
            _gl.generateMipmap(target);
            _gl.bindTexture(target, null);
          }
        }
      }
    },
    // 0x8CD5, 36053, FRAMEBUFFER_COMPLETE
    // 0x8CD6, 36054, FRAMEBUFFER_INCOMPLETE_ATTACHMENT
    // 0x8CD7, 36055, FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT
    // 0x8CD9, 36057, FRAMEBUFFER_INCOMPLETE_DIMENSIONS
    // 0x8CDD, 36061, FRAMEBUFFER_UNSUPPORTED
    checkStatus: function(_gl) {
      return _gl.checkFramebufferStatus(GL_FRAMEBUFFER);
    },
    _getFrameBufferGL: function(renderer) {
      var cache = this._cache;
      cache.use(renderer.__uid__);
      if (cache.miss(KEY_FRAMEBUFFER)) {
        cache.put(KEY_FRAMEBUFFER, renderer.gl.createFramebuffer());
      }
      return cache.get(KEY_FRAMEBUFFER);
    },
    /**
     * Attach a texture(RTT) to the framebuffer
     * @param  {clay.Texture} texture
     * @param  {number} [attachment=gl.COLOR_ATTACHMENT0]
     * @param  {number} [target=gl.TEXTURE_2D]
     */
    attach: function(texture, attachment, target) {
      if (!texture.width) {
        throw new Error("The texture attached to color buffer is not a valid.");
      }
      attachment = attachment || GL_COLOR_ATTACHMENT0;
      target = target || glenum.TEXTURE_2D;
      var boundRenderer = this._boundRenderer;
      var _gl = boundRenderer && boundRenderer.gl;
      var attachedTextures;
      if (_gl) {
        var cache = this._cache;
        cache.use(boundRenderer.__uid__);
        attachedTextures = cache.get("attached_textures");
      }
      var previous = this._textures[attachment];
      if (previous && previous.target === target && previous.texture === texture && (attachedTextures && attachedTextures[attachment] != null)) {
        return;
      }
      var canAttach = true;
      if (boundRenderer) {
        canAttach = this._doAttach(boundRenderer, texture, attachment, target);
        if (!this.viewport) {
          boundRenderer.setViewport(0, 0, texture.width, texture.height, 1);
        }
      }
      if (canAttach) {
        this._textures[attachment] = this._textures[attachment] || {};
        this._textures[attachment].texture = texture;
        this._textures[attachment].target = target;
      }
    },
    _doAttach: function(renderer, texture, attachment, target) {
      var _gl = renderer.gl;
      var webglTexture = texture.getWebGLTexture(renderer);
      var attachedTextures = this._cache.get("attached_textures");
      if (attachedTextures && attachedTextures[attachment]) {
        var obj = attachedTextures[attachment];
        if (obj.texture === texture && obj.target === target) {
          return;
        }
      }
      attachment = +attachment;
      var canAttach = true;
      if (attachment === GL_DEPTH_ATTACHMENT || attachment === glenum.DEPTH_STENCIL_ATTACHMENT) {
        var extension = renderer.getGLExtension("WEBGL_depth_texture");
        if (!extension) {
          console.error("Depth texture is not supported by the browser");
          canAttach = false;
        }
        if (texture.format !== glenum.DEPTH_COMPONENT && texture.format !== glenum.DEPTH_STENCIL) {
          console.error("The texture attached to depth buffer is not a valid.");
          canAttach = false;
        }
        if (canAttach) {
          var renderbuffer = this._cache.get(KEY_RENDERBUFFER);
          if (renderbuffer) {
            _gl.framebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, null);
            _gl.deleteRenderbuffer(renderbuffer);
            this._cache.put(KEY_RENDERBUFFER, false);
          }
          this._cache.put(KEY_RENDERBUFFER_ATTACHED, false);
          this._cache.put(KEY_DEPTHTEXTURE_ATTACHED, true);
        }
      }
      _gl.framebufferTexture2D(GL_FRAMEBUFFER, attachment, target, webglTexture, 0);
      if (!attachedTextures) {
        attachedTextures = {};
        this._cache.put("attached_textures", attachedTextures);
      }
      attachedTextures[attachment] = attachedTextures[attachment] || {};
      attachedTextures[attachment].texture = texture;
      attachedTextures[attachment].target = target;
      return canAttach;
    },
    _doDetach: function(_gl, attachment, target) {
      _gl.framebufferTexture2D(GL_FRAMEBUFFER, attachment, target, null, 0);
      var attachedTextures = this._cache.get("attached_textures");
      if (attachedTextures && attachedTextures[attachment]) {
        attachedTextures[attachment] = null;
      }
      if (attachment === GL_DEPTH_ATTACHMENT || attachment === glenum.DEPTH_STENCIL_ATTACHMENT) {
        this._cache.put(KEY_DEPTHTEXTURE_ATTACHED, false);
      }
    },
    /**
     * Detach a texture
     * @param  {number} [attachment=gl.COLOR_ATTACHMENT0]
     * @param  {number} [target=gl.TEXTURE_2D]
     */
    detach: function(attachment, target) {
      this._textures[attachment] = null;
      if (this._boundRenderer) {
        var cache = this._cache;
        cache.use(this._boundRenderer.__uid__);
        this._doDetach(this._boundRenderer.gl, attachment, target);
      }
    },
    /**
     * Dispose
     * @param  {WebGLRenderingContext} _gl
     */
    dispose: function(renderer) {
      var _gl = renderer.gl;
      var cache = this._cache;
      cache.use(renderer.__uid__);
      var renderBuffer = cache.get(KEY_RENDERBUFFER);
      if (renderBuffer) {
        _gl.deleteRenderbuffer(renderBuffer);
      }
      var frameBuffer = cache.get(KEY_FRAMEBUFFER);
      if (frameBuffer) {
        _gl.deleteFramebuffer(frameBuffer);
      }
      cache.deleteContext(renderer.__uid__);
      this._textures = {};
    }
  }
);
FrameBuffer.DEPTH_ATTACHMENT = GL_DEPTH_ATTACHMENT;
FrameBuffer.COLOR_ATTACHMENT0 = GL_COLOR_ATTACHMENT0;
FrameBuffer.STENCIL_ATTACHMENT = glenum.STENCIL_ATTACHMENT;
FrameBuffer.DEPTH_STENCIL_ATTACHMENT = glenum.DEPTH_STENCIL_ATTACHMENT;
var targets$3 = ["px", "nx", "py", "ny", "pz", "nz"];
var EnvironmentMapPass = Base.extend(
  function() {
    var ret2 = (
      /** @lends clay.prePass.EnvironmentMap# */
      {
        /**
         * Camera position
         * @type {clay.Vector3}
         * @memberOf clay.prePass.EnvironmentMap#
         */
        position: new Vector3(),
        /**
         * Camera far plane
         * @type {number}
         * @memberOf clay.prePass.EnvironmentMap#
         */
        far: 1e3,
        /**
         * Camera near plane
         * @type {number}
         * @memberOf clay.prePass.EnvironmentMap#
         */
        near: 0.1,
        /**
         * Environment cube map
         * @type {clay.TextureCube}
         * @memberOf clay.prePass.EnvironmentMap#
         */
        texture: null,
        /**
         * Used if you wan't have shadow in environment map
         * @type {clay.prePass.ShadowMap}
         */
        shadowMapPass: null
      }
    );
    var cameras = ret2._cameras = {
      px: new Perspective({ fov: 90 }),
      nx: new Perspective({ fov: 90 }),
      py: new Perspective({ fov: 90 }),
      ny: new Perspective({ fov: 90 }),
      pz: new Perspective({ fov: 90 }),
      nz: new Perspective({ fov: 90 })
    };
    cameras.px.lookAt(Vector3.POSITIVE_X, Vector3.NEGATIVE_Y);
    cameras.nx.lookAt(Vector3.NEGATIVE_X, Vector3.NEGATIVE_Y);
    cameras.py.lookAt(Vector3.POSITIVE_Y, Vector3.POSITIVE_Z);
    cameras.ny.lookAt(Vector3.NEGATIVE_Y, Vector3.NEGATIVE_Z);
    cameras.pz.lookAt(Vector3.POSITIVE_Z, Vector3.NEGATIVE_Y);
    cameras.nz.lookAt(Vector3.NEGATIVE_Z, Vector3.NEGATIVE_Y);
    ret2._frameBuffer = new FrameBuffer();
    return ret2;
  },
  /** @lends clay.prePass.EnvironmentMap# */
  {
    /**
     * @param  {string} target
     * @return  {clay.Camera}
     */
    getCamera: function(target) {
      return this._cameras[target];
    },
    /**
     * @param  {clay.Renderer} renderer
     * @param  {clay.Scene} scene
     * @param  {boolean} [notUpdateScene=false]
     */
    render: function(renderer, scene, notUpdateScene) {
      var _gl = renderer.gl;
      if (!notUpdateScene) {
        scene.update();
      }
      var n = this.texture.width;
      var fov = 2 * Math.atan(n / (n - 0.5)) / Math.PI * 180;
      for (var i = 0; i < 6; i++) {
        var target = targets$3[i];
        var camera2 = this._cameras[target];
        Vector3.copy(camera2.position, this.position);
        camera2.far = this.far;
        camera2.near = this.near;
        camera2.fov = fov;
        if (this.shadowMapPass) {
          camera2.update();
          var bbox = scene.getBoundingBox();
          bbox.applyTransform(camera2.viewMatrix);
          scene.viewBoundingBoxLastFrame.copy(bbox);
          this.shadowMapPass.render(renderer, scene, camera2, true);
        }
        this._frameBuffer.attach(
          this.texture,
          _gl.COLOR_ATTACHMENT0,
          _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i
        );
        this._frameBuffer.bind(renderer);
        renderer.render(scene, camera2, true);
        this._frameBuffer.unbind(renderer);
      }
    },
    /**
     * @param {clay.Renderer} renderer
     */
    dispose: function(renderer) {
      this._frameBuffer.dispose(renderer);
    }
  }
);
var Plane = Geometry.extend(
  /** @lends clay.geometry.Plane# */
  {
    dynamic: false,
    /**
     * @type {number}
     */
    widthSegments: 1,
    /**
     * @type {number}
     */
    heightSegments: 1
  },
  function() {
    this.build();
  },
  /** @lends clay.geometry.Plane.prototype */
  {
    /**
     * Build plane geometry
     */
    build: function() {
      var heightSegments = this.heightSegments;
      var widthSegments = this.widthSegments;
      var attributes = this.attributes;
      var positions = [];
      var texcoords = [];
      var normals = [];
      var faces = [];
      for (var y = 0; y <= heightSegments; y++) {
        var t = y / heightSegments;
        for (var x = 0; x <= widthSegments; x++) {
          var s = x / widthSegments;
          positions.push([2 * s - 1, 2 * t - 1, 0]);
          if (texcoords) {
            texcoords.push([s, t]);
          }
          if (normals) {
            normals.push([0, 0, 1]);
          }
          if (x < widthSegments && y < heightSegments) {
            var i = x + y * (widthSegments + 1);
            faces.push([i, i + 1, i + widthSegments + 1]);
            faces.push([i + widthSegments + 1, i + 1, i + widthSegments + 2]);
          }
        }
      }
      attributes.position.fromArray(positions);
      attributes.texcoord0.fromArray(texcoords);
      attributes.normal.fromArray(normals);
      this.initIndicesFromArray(faces);
      this.boundingBox = new BoundingBox();
      this.boundingBox.min.set(-1, -1, 0);
      this.boundingBox.max.set(1, 1, 0);
    }
  }
);
var planeMatrix = new Matrix4();
var Cube = Geometry.extend(
  /**@lends clay.geometry.Cube# */
  {
    dynamic: false,
    /**
     * @type {number}
     */
    widthSegments: 1,
    /**
     * @type {number}
     */
    heightSegments: 1,
    /**
     * @type {number}
     */
    depthSegments: 1,
    /**
     * @type {boolean}
     */
    inside: false
  },
  function() {
    this.build();
  },
  /** @lends clay.geometry.Cube.prototype */
  {
    /**
     * Build cube geometry
     */
    build: function() {
      var planes = {
        "px": createPlane("px", this.depthSegments, this.heightSegments),
        "nx": createPlane("nx", this.depthSegments, this.heightSegments),
        "py": createPlane("py", this.widthSegments, this.depthSegments),
        "ny": createPlane("ny", this.widthSegments, this.depthSegments),
        "pz": createPlane("pz", this.widthSegments, this.heightSegments),
        "nz": createPlane("nz", this.widthSegments, this.heightSegments)
      };
      var attrList = ["position", "texcoord0", "normal"];
      var vertexNumber = 0;
      var faceNumber = 0;
      for (var pos in planes) {
        vertexNumber += planes[pos].vertexCount;
        faceNumber += planes[pos].indices.length;
      }
      for (var k = 0; k < attrList.length; k++) {
        this.attributes[attrList[k]].init(vertexNumber);
      }
      this.indices = new vendor.Uint16Array(faceNumber);
      var faceOffset = 0;
      var vertexOffset = 0;
      for (var pos in planes) {
        var plane = planes[pos];
        for (var k = 0; k < attrList.length; k++) {
          var attrName = attrList[k];
          var attrArray = plane.attributes[attrName].value;
          var attrSize = plane.attributes[attrName].size;
          var isNormal = attrName === "normal";
          for (var i = 0; i < attrArray.length; i++) {
            var value = attrArray[i];
            if (this.inside && isNormal) {
              value = -value;
            }
            this.attributes[attrName].value[i + attrSize * vertexOffset] = value;
          }
        }
        var len = plane.indices.length;
        for (var i = 0; i < plane.indices.length; i++) {
          this.indices[i + faceOffset] = vertexOffset + plane.indices[this.inside ? len - i - 1 : i];
        }
        faceOffset += plane.indices.length;
        vertexOffset += plane.vertexCount;
      }
      this.boundingBox = new BoundingBox();
      this.boundingBox.max.set(1, 1, 1);
      this.boundingBox.min.set(-1, -1, -1);
    }
  }
);
function createPlane(pos, widthSegments, heightSegments) {
  planeMatrix.identity();
  var plane = new Plane({
    widthSegments,
    heightSegments
  });
  switch (pos) {
    case "px":
      Matrix4.translate(planeMatrix, planeMatrix, Vector3.POSITIVE_X);
      Matrix4.rotateY(planeMatrix, planeMatrix, Math.PI / 2);
      break;
    case "nx":
      Matrix4.translate(planeMatrix, planeMatrix, Vector3.NEGATIVE_X);
      Matrix4.rotateY(planeMatrix, planeMatrix, -Math.PI / 2);
      break;
    case "py":
      Matrix4.translate(planeMatrix, planeMatrix, Vector3.POSITIVE_Y);
      Matrix4.rotateX(planeMatrix, planeMatrix, -Math.PI / 2);
      break;
    case "ny":
      Matrix4.translate(planeMatrix, planeMatrix, Vector3.NEGATIVE_Y);
      Matrix4.rotateX(planeMatrix, planeMatrix, Math.PI / 2);
      break;
    case "pz":
      Matrix4.translate(planeMatrix, planeMatrix, Vector3.POSITIVE_Z);
      break;
    case "nz":
      Matrix4.translate(planeMatrix, planeMatrix, Vector3.NEGATIVE_Z);
      Matrix4.rotateY(planeMatrix, planeMatrix, Math.PI);
      break;
  }
  plane.applyTransform(planeMatrix);
  return plane;
}
const skyboxEssl = "@export clay.skybox.vertex\n#define SHADER_NAME skybox\nuniform mat4 world : WORLD;\nuniform mat4 worldViewProjection : WORLDVIEWPROJECTION;\nattribute vec3 position : POSITION;\nvarying vec3 v_WorldPosition;\nvoid main()\n{\n v_WorldPosition = (world * vec4(position, 1.0)).xyz;\n gl_Position = worldViewProjection * vec4(position, 1.0);\n}\n@end\n@export clay.skybox.fragment\n#define PI 3.1415926\nuniform mat4 viewInverse : VIEWINVERSE;\n#ifdef EQUIRECTANGULAR\nuniform sampler2D environmentMap;\n#else\nuniform samplerCube environmentMap;\n#endif\nuniform float lod: 0.0;\nvarying vec3 v_WorldPosition;\n@import clay.util.rgbm\n@import clay.util.srgb\n@import clay.util.ACES\nvoid main()\n{\n vec3 eyePos = viewInverse[3].xyz;\n vec3 V = normalize(v_WorldPosition - eyePos);\n#ifdef EQUIRECTANGULAR\n float phi = acos(V.y);\n float theta = atan(-V.x, V.z) + PI * 0.5;\n vec2 uv = vec2(theta / 2.0 / PI, phi / PI);\n vec4 texel = decodeHDR(texture2D(environmentMap, fract(uv)));\n#else\n #if defined(LOD) || defined(SUPPORT_TEXTURE_LOD)\n vec4 texel = decodeHDR(textureCubeLodEXT(environmentMap, V, lod));\n #else\n vec4 texel = decodeHDR(textureCube(environmentMap, V));\n #endif\n#endif\n#ifdef SRGB_DECODE\n texel = sRGBToLinear(texel);\n#endif\n#ifdef TONEMAPPING\n texel.rgb = ACESToneMapping(texel.rgb);\n#endif\n#ifdef SRGB_ENCODE\n texel = linearTosRGB(texel);\n#endif\n gl_FragColor = encodeHDR(vec4(texel.rgb, 1.0));\n}\n@end";
Shader.import(skyboxEssl);
var Skybox = Mesh.extend(
  function() {
    var skyboxShader = new Shader({
      vertex: Shader.source("clay.skybox.vertex"),
      fragment: Shader.source("clay.skybox.fragment")
    });
    var material = new Material({
      shader: skyboxShader,
      depthMask: false
    });
    return {
      /**
       * @type {clay.Scene}
       * @memberOf clay.plugin.Skybox.prototype
       */
      scene: null,
      geometry: new Cube(),
      material,
      environmentMap: null,
      culling: false,
      _dummyCamera: new Perspective()
    };
  },
  function() {
    var scene = this.scene;
    if (scene) {
      this.attachScene(scene);
    }
    if (this.environmentMap) {
      this.setEnvironmentMap(this.environmentMap);
    }
  },
  /** @lends clay.plugin.Skybox# */
  {
    /**
     * Attach the skybox to the scene
     * @param  {clay.Scene} scene
     */
    attachScene: function(scene) {
      if (this.scene) {
        this.detachScene();
      }
      scene.skybox = this;
      this.scene = scene;
      scene.on("beforerender", this._beforeRenderScene, this);
    },
    /**
     * Detach from scene
     */
    detachScene: function() {
      if (this.scene) {
        this.scene.off("beforerender", this._beforeRenderScene);
        this.scene.skybox = null;
      }
      this.scene = null;
    },
    /**
     * Dispose skybox
     * @param  {clay.Renderer} renderer
     */
    dispose: function(renderer) {
      this.detachScene();
      this.geometry.dispose(renderer);
    },
    /**
     * Set environment map
     * @param {clay.TextureCube} envMap
     */
    setEnvironmentMap: function(envMap) {
      if (envMap.textureType === "texture2D") {
        this.material.define("EQUIRECTANGULAR");
        envMap.minFilter = Texture.LINEAR;
      } else {
        this.material.undefine("EQUIRECTANGULAR");
      }
      this.material.set("environmentMap", envMap);
    },
    /**
     * Get environment map
     * @return {clay.TextureCube}
     */
    getEnvironmentMap: function() {
      return this.material.get("environmentMap");
    },
    _beforeRenderScene: function(renderer, scene, camera2) {
      this.renderSkybox(renderer, camera2);
    },
    renderSkybox: function(renderer, camera2) {
      var dummyCamera = this._dummyCamera;
      dummyCamera.aspect = renderer.getViewportAspect();
      dummyCamera.fov = camera2.fov || 50;
      dummyCamera.updateProjectionMatrix();
      Matrix4.invert(dummyCamera.invProjectionMatrix, dummyCamera.projectionMatrix);
      dummyCamera.worldTransform.copy(camera2.worldTransform);
      dummyCamera.viewMatrix.copy(camera2.viewMatrix);
      this.position.copy(camera2.getWorldPosition());
      this.update();
      renderer.gl.disable(renderer.gl.BLEND);
      if (this.material.get("lod") > 0) {
        this.material.define("fragment", "LOD");
      } else {
        this.material.undefine("fragment", "LOD");
      }
      renderer.renderPass([this], dummyCamera);
    }
  }
);
var DDS_MAGIC = 542327876;
var DDSD_MIPMAPCOUNT = 131072;
var DDSCAPS2_CUBEMAP = 512;
var DDPF_FOURCC = 4;
function fourCCToInt32(value) {
  return value.charCodeAt(0) + (value.charCodeAt(1) << 8) + (value.charCodeAt(2) << 16) + (value.charCodeAt(3) << 24);
}
var headerLengthInt = 31;
var FOURCC_DXT1 = fourCCToInt32("DXT1");
var FOURCC_DXT3 = fourCCToInt32("DXT3");
var FOURCC_DXT5 = fourCCToInt32("DXT5");
var off_magic = 0;
var off_size = 1;
var off_flags = 2;
var off_height = 3;
var off_width = 4;
var off_mipmapCount = 7;
var off_pfFlags = 20;
var off_pfFourCC = 21;
var off_caps2 = 28;
var ret$1 = {
  parse: function(arrayBuffer, out) {
    var header = new Int32Array(arrayBuffer, 0, headerLengthInt);
    if (header[off_magic] !== DDS_MAGIC) {
      return null;
    }
    if (!header(off_pfFlags) & DDPF_FOURCC) {
      return null;
    }
    var fourCC = header(off_pfFourCC);
    var width = header[off_width];
    var height = header[off_height];
    var isCubeMap = header[off_caps2] & DDSCAPS2_CUBEMAP;
    var hasMipmap = header[off_flags] & DDSD_MIPMAPCOUNT;
    var blockBytes, internalFormat;
    switch (fourCC) {
      case FOURCC_DXT1:
        blockBytes = 8;
        internalFormat = Texture.COMPRESSED_RGB_S3TC_DXT1_EXT;
        break;
      case FOURCC_DXT3:
        blockBytes = 16;
        internalFormat = Texture.COMPRESSED_RGBA_S3TC_DXT3_EXT;
        break;
      case FOURCC_DXT5:
        blockBytes = 16;
        internalFormat = Texture.COMPRESSED_RGBA_S3TC_DXT5_EXT;
        break;
      default:
        return null;
    }
    var dataOffset = header[off_size] + 4;
    var faceNumber = isCubeMap ? 6 : 1;
    var mipmapCount = 1;
    if (hasMipmap) {
      mipmapCount = Math.max(1, header[off_mipmapCount]);
    }
    var textures = [];
    for (var f = 0; f < faceNumber; f++) {
      var _width = width;
      var _height = height;
      textures[f] = new Texture2D({
        width: _width,
        height: _height,
        format: internalFormat
      });
      var mipmaps = [];
      for (var i = 0; i < mipmapCount; i++) {
        var dataLength = Math.max(4, _width) / 4 * Math.max(4, _height) / 4 * blockBytes;
        var byteArray = new Uint8Array(arrayBuffer, dataOffset, dataLength);
        dataOffset += dataLength;
        _width *= 0.5;
        _height *= 0.5;
        mipmaps[i] = byteArray;
      }
      textures[f].pixels = mipmaps[0];
      if (hasMipmap) {
        textures[f].mipmaps = mipmaps;
      }
    }
    if (out) {
      out.width = textures[0].width;
      out.height = textures[0].height;
      out.format = textures[0].format;
      out.pixels = textures[0].pixels;
      out.mipmaps = textures[0].mipmaps;
    } else {
      return textures[0];
    }
  }
};
var toChar = String.fromCharCode;
var MINELEN = 8;
var MAXELEN = 32767;
function rgbe2float(rgbe, buffer, offset, exposure) {
  if (rgbe[3] > 0) {
    var f = Math.pow(2, rgbe[3] - 128 - 8 + exposure);
    buffer[offset + 0] = rgbe[0] * f;
    buffer[offset + 1] = rgbe[1] * f;
    buffer[offset + 2] = rgbe[2] * f;
  } else {
    buffer[offset + 0] = 0;
    buffer[offset + 1] = 0;
    buffer[offset + 2] = 0;
  }
  buffer[offset + 3] = 1;
  return buffer;
}
function uint82string(array, offset, size) {
  var str = "";
  for (var i = offset; i < size; i++) {
    str += toChar(array[i]);
  }
  return str;
}
function copyrgbe(s, t) {
  t[0] = s[0];
  t[1] = s[1];
  t[2] = s[2];
  t[3] = s[3];
}
function oldReadColors(scan, buffer, offset, xmax) {
  var rshift = 0, x = 0, len = xmax;
  while (len > 0) {
    scan[x][0] = buffer[offset++];
    scan[x][1] = buffer[offset++];
    scan[x][2] = buffer[offset++];
    scan[x][3] = buffer[offset++];
    if (scan[x][0] === 1 && scan[x][1] === 1 && scan[x][2] === 1) {
      for (var i = scan[x][3] << rshift >>> 0; i > 0; i--) {
        copyrgbe(scan[x - 1], scan[x]);
        x++;
        len--;
      }
      rshift += 8;
    } else {
      x++;
      len--;
      rshift = 0;
    }
  }
  return offset;
}
function readColors(scan, buffer, offset, xmax) {
  if (xmax < MINELEN | xmax > MAXELEN) {
    return oldReadColors(scan, buffer, offset, xmax);
  }
  var i = buffer[offset++];
  if (i != 2) {
    return oldReadColors(scan, buffer, offset - 1, xmax);
  }
  scan[0][1] = buffer[offset++];
  scan[0][2] = buffer[offset++];
  i = buffer[offset++];
  if ((scan[0][2] << 8 >>> 0 | i) >>> 0 !== xmax) {
    return null;
  }
  for (var i = 0; i < 4; i++) {
    for (var x = 0; x < xmax; ) {
      var code = buffer[offset++];
      if (code > 128) {
        code = (code & 127) >>> 0;
        var val = buffer[offset++];
        while (code--) {
          scan[x++][i] = val;
        }
      } else {
        while (code--) {
          scan[x++][i] = buffer[offset++];
        }
      }
    }
  }
  return offset;
}
var ret = {
  // http://www.graphics.cornell.edu/~bjw/rgbe.html
  // Blender source
  // http://radsite.lbl.gov/radiance/refer/Notes/picture_format.html
  parseRGBE: function(arrayBuffer, texture, exposure) {
    if (exposure == null) {
      exposure = 0;
    }
    var data = new Uint8Array(arrayBuffer);
    var size = data.length;
    if (uint82string(data, 0, 2) !== "#?") {
      return;
    }
    for (var i = 2; i < size; i++) {
      if (toChar(data[i]) === "\n" && toChar(data[i + 1]) === "\n") {
        break;
      }
    }
    if (i >= size) {
      return;
    }
    i += 2;
    var str = "";
    for (; i < size; i++) {
      var _char = toChar(data[i]);
      if (_char === "\n") {
        break;
      }
      str += _char;
    }
    var tmp = str.split(" ");
    var height = parseInt(tmp[1]);
    var width = parseInt(tmp[3]);
    if (!width || !height) {
      return;
    }
    var offset = i + 1;
    var scanline = [];
    for (var x = 0; x < width; x++) {
      scanline[x] = [];
      for (var j = 0; j < 4; j++) {
        scanline[x][j] = 0;
      }
    }
    var pixels = new Float32Array(width * height * 4);
    var offset2 = 0;
    for (var y = 0; y < height; y++) {
      var offset = readColors(scanline, data, offset, width);
      if (!offset) {
        return null;
      }
      for (var x = 0; x < width; x++) {
        rgbe2float(scanline[x], pixels, offset2, exposure);
        offset2 += 4;
      }
    }
    if (!texture) {
      texture = new Texture2D();
    }
    texture.width = width;
    texture.height = height;
    texture.pixels = pixels;
    texture.type = Texture.FLOAT;
    return texture;
  },
  parseRGBEFromPNG: function(png) {
  }
};
var textureUtil = {
  /**
   * @param  {string|object} path
   * @param  {object} [option]
   * @param  {Function} [onsuccess]
   * @param  {Function} [onerror]
   * @return {clay.Texture}
   */
  loadTexture: function(path, option, onsuccess, onerror) {
    var texture;
    if (typeof option === "function") {
      onsuccess = option;
      onerror = onsuccess;
      option = {};
    } else {
      option = option || {};
    }
    if (typeof path === "string") {
      if (path.match(/.hdr$/) || option.fileType === "hdr") {
        texture = new Texture2D({
          width: 0,
          height: 0,
          sRGB: false
        });
        textureUtil._fetchTexture(
          path,
          function(data) {
            ret.parseRGBE(data, texture, option.exposure);
            texture.dirty();
            onsuccess && onsuccess(texture);
          },
          onerror
        );
        return texture;
      } else if (path.match(/.dds$/) || option.fileType === "dds") {
        texture = new Texture2D({
          width: 0,
          height: 0
        });
        textureUtil._fetchTexture(
          path,
          function(data) {
            ret$1.parse(data, texture);
            texture.dirty();
            onsuccess && onsuccess(texture);
          },
          onerror
        );
      } else {
        texture = new Texture2D();
        texture.load(path);
        texture.success(onsuccess);
        texture.error(onerror);
      }
    } else if (typeof path === "object" && typeof path.px !== "undefined") {
      texture = new TextureCube();
      texture.load(path);
      texture.success(onsuccess);
      texture.error(onerror);
    }
    return texture;
  },
  /**
   * Load a panorama texture and render it to a cube map
   * @param  {clay.Renderer} renderer
   * @param  {string} path
   * @param  {clay.TextureCube} cubeMap
   * @param  {object} [option]
   * @param  {boolean} [option.encodeRGBM]
   * @param  {number} [option.exposure]
   * @param  {Function} [onsuccess]
   * @param  {Function} [onerror]
   */
  loadPanorama: function(renderer, path, cubeMap, option, onsuccess, onerror) {
    var self2 = this;
    if (typeof option === "function") {
      onsuccess = option;
      onerror = onsuccess;
      option = {};
    } else {
      option = option || {};
    }
    textureUtil.loadTexture(path, option, function(texture) {
      texture.flipY = option.flipY || false;
      self2.panoramaToCubeMap(renderer, texture, cubeMap, option);
      texture.dispose(renderer);
      onsuccess && onsuccess(cubeMap);
    }, onerror);
  },
  /**
   * Render a panorama texture to a cube map
   * @param  {clay.Renderer} renderer
   * @param  {clay.Texture2D} panoramaMap
   * @param  {clay.TextureCube} cubeMap
   * @param  {Object} option
   * @param  {boolean} [option.encodeRGBM]
   */
  panoramaToCubeMap: function(renderer, panoramaMap, cubeMap, option) {
    var environmentMapPass = new EnvironmentMapPass();
    var skydome = new Skybox({
      scene: new Scene()
    });
    skydome.setEnvironmentMap(panoramaMap);
    option = option || {};
    if (option.encodeRGBM) {
      skydome.material.define("fragment", "RGBM_ENCODE");
    }
    cubeMap.sRGB = panoramaMap.sRGB;
    environmentMapPass.texture = cubeMap;
    environmentMapPass.render(renderer, skydome.scene);
    environmentMapPass.texture = null;
    environmentMapPass.dispose(renderer);
    return cubeMap;
  },
  /**
   * Convert height map to normal map
   * @param {HTMLImageElement|HTMLCanvasElement} image
   * @param {boolean} [checkBump=false]
   * @return {HTMLCanvasElement}
   */
  heightToNormal: function(image, checkBump) {
    var canvas = document.createElement("canvas");
    var width = canvas.width = image.width;
    var height = canvas.height = image.height;
    var ctx = canvas.getContext("2d");
    ctx.drawImage(image, 0, 0, width, height);
    checkBump = checkBump || false;
    var srcData = ctx.getImageData(0, 0, width, height);
    var dstData = ctx.createImageData(width, height);
    for (var i = 0; i < srcData.data.length; i += 4) {
      if (checkBump) {
        var r = srcData.data[i];
        var g2 = srcData.data[i + 1];
        var b = srcData.data[i + 2];
        var diff = Math.abs(r - g2) + Math.abs(g2 - b);
        if (diff > 20) {
          console.warn("Given image is not a height map");
          return image;
        }
      }
      var x1, y1, x2, y2;
      if (i % (width * 4) === 0) {
        x1 = srcData.data[i];
        x2 = srcData.data[i + 4];
      } else if (i % (width * 4) === (width - 1) * 4) {
        x1 = srcData.data[i - 4];
        x2 = srcData.data[i];
      } else {
        x1 = srcData.data[i - 4];
        x2 = srcData.data[i + 4];
      }
      if (i < width * 4) {
        y1 = srcData.data[i];
        y2 = srcData.data[i + width * 4];
      } else if (i > width * (height - 1) * 4) {
        y1 = srcData.data[i - width * 4];
        y2 = srcData.data[i];
      } else {
        y1 = srcData.data[i - width * 4];
        y2 = srcData.data[i + width * 4];
      }
      dstData.data[i] = x1 - x2 + 127;
      dstData.data[i + 1] = y1 - y2 + 127;
      dstData.data[i + 2] = 255;
      dstData.data[i + 3] = 255;
    }
    ctx.putImageData(dstData, 0, 0);
    return canvas;
  },
  /**
   * Convert height map to normal map
   * @param {HTMLImageElement|HTMLCanvasElement} image
   * @param {boolean} [checkBump=false]
   * @param {number} [threshold=20]
   * @return {HTMLCanvasElement}
   */
  isHeightImage: function(img, downScaleSize, threshold) {
    if (!img || !img.width || !img.height) {
      return false;
    }
    var canvas = document.createElement("canvas");
    var ctx = canvas.getContext("2d");
    var size = downScaleSize || 32;
    threshold = threshold || 20;
    canvas.width = canvas.height = size;
    ctx.drawImage(img, 0, 0, size, size);
    var srcData = ctx.getImageData(0, 0, size, size);
    for (var i = 0; i < srcData.data.length; i += 4) {
      var r = srcData.data[i];
      var g2 = srcData.data[i + 1];
      var b = srcData.data[i + 2];
      var diff = Math.abs(r - g2) + Math.abs(g2 - b);
      if (diff > threshold) {
        return false;
      }
    }
    return true;
  },
  _fetchTexture: function(path, onsuccess, onerror) {
    vendor.request.get({
      url: path,
      responseType: "arraybuffer",
      onload: onsuccess,
      onerror
    });
  },
  /**
   * Create a chessboard texture
   * @param  {number} [size]
   * @param  {number} [unitSize]
   * @param  {string} [color1]
   * @param  {string} [color2]
   * @return {clay.Texture2D}
   */
  createChessboard: function(size, unitSize, color1, color2) {
    size = size || 512;
    unitSize = unitSize || 64;
    color1 = color1 || "black";
    color2 = color2 || "white";
    var repeat = Math.ceil(size / unitSize);
    var canvas = document.createElement("canvas");
    canvas.width = size;
    canvas.height = size;
    var ctx = canvas.getContext("2d");
    ctx.fillStyle = color2;
    ctx.fillRect(0, 0, size, size);
    ctx.fillStyle = color1;
    for (var i = 0; i < repeat; i++) {
      for (var j = 0; j < repeat; j++) {
        var isFill = j % 2 ? i % 2 : i % 2 - 1;
        if (isFill) {
          ctx.fillRect(i * unitSize, j * unitSize, unitSize, unitSize);
        }
      }
    }
    var texture = new Texture2D({
      image: canvas,
      anisotropic: 8
    });
    return texture;
  },
  /**
   * Create a blank pure color 1x1 texture
   * @param  {string} color
   * @return {clay.Texture2D}
   */
  createBlank: function(color) {
    var canvas = document.createElement("canvas");
    canvas.width = 1;
    canvas.height = 1;
    var ctx = canvas.getContext("2d");
    ctx.fillStyle = color;
    ctx.fillRect(0, 0, 1, 1);
    var texture = new Texture2D({
      image: canvas
    });
    return texture;
  }
};
var events = ["mousedown", "mouseup", "mousemove", "mouseover", "mouseout", "click", "dblclick", "contextmenu"];
function makeHandlerName(eventName) {
  return "_on" + eventName;
}
var EChartsSurface = function(chart) {
  var self2 = this;
  this._texture = new Texture2D({
    anisotropic: 32,
    flipY: false,
    surface: this,
    dispose: function(renderer) {
      self2.dispose();
      Texture2D.prototype.dispose.call(this, renderer);
    }
  });
  events.forEach(function(eventName) {
    this[makeHandlerName(eventName)] = function(eveObj) {
      if (!eveObj.triangle) {
        return;
      }
      this._meshes.forEach(function(mesh2) {
        this.dispatchEvent(eventName, mesh2, eveObj.triangle, eveObj.point);
      }, this);
    };
  }, this);
  this._meshes = [];
  if (chart) {
    this.setECharts(chart);
  }
  this.onupdate = null;
};
EChartsSurface.prototype = {
  constructor: EChartsSurface,
  getTexture: function() {
    return this._texture;
  },
  setECharts: function(chart) {
    this._chart = chart;
    var canvas = chart.getDom();
    if (!(canvas instanceof HTMLCanvasElement)) {
      console.error("ECharts must init on canvas if it is used as texture.");
      canvas = document.createElement("canvas");
    } else {
      var self2 = this;
      var zr = chart.getZr();
      var oldRefreshImmediately = zr.__oldRefreshImmediately || zr.refreshImmediately;
      zr.refreshImmediately = function() {
        oldRefreshImmediately.call(this);
        self2._texture.dirty();
        self2.onupdate && self2.onupdate();
      };
      zr.__oldRefreshImmediately = oldRefreshImmediately;
    }
    this._texture.image = canvas;
    this._texture.dirty();
    this.onupdate && this.onupdate();
  },
  /**
   * @method
   * @param {clay.Mesh} attachedMesh
   * @param {Array.<number>} triangle Triangle indices
   * @param {clay.math.Vector3} point
   */
  dispatchEvent: function() {
    var p02 = new Vector3();
    var p12 = new Vector3();
    var p22 = new Vector3();
    var uv0 = new Vector2();
    var uv1 = new Vector2();
    var uv2 = new Vector2();
    var uv = new Vector2();
    var vCross = new Vector3();
    return function(eventName, attachedMesh, triangle, point) {
      var geo = attachedMesh.geometry;
      var position = geo.attributes.position;
      var texcoord = geo.attributes.texcoord0;
      var dot = Vector3.dot;
      var cross2 = Vector3.cross;
      position.get(triangle[0], p02.array);
      position.get(triangle[1], p12.array);
      position.get(triangle[2], p22.array);
      texcoord.get(triangle[0], uv0.array);
      texcoord.get(triangle[1], uv1.array);
      texcoord.get(triangle[2], uv2.array);
      cross2(vCross, p12, p22);
      var det = dot(p02, vCross);
      var t = dot(point, vCross) / det;
      cross2(vCross, p22, p02);
      var u = dot(point, vCross) / det;
      cross2(vCross, p02, p12);
      var v = dot(point, vCross) / det;
      Vector2.scale(uv, uv0, t);
      Vector2.scaleAndAdd(uv, uv, uv1, u);
      Vector2.scaleAndAdd(uv, uv, uv2, v);
      var x = uv.x * this._chart.getWidth();
      var y = uv.y * this._chart.getHeight();
      this._chart.getZr().handler.dispatch(eventName, {
        zrX: x,
        zrY: y
      });
    };
  }(),
  attachToMesh: function(mesh2) {
    if (this._meshes.indexOf(mesh2) >= 0) {
      return;
    }
    events.forEach(function(eventName) {
      mesh2.on(eventName, this[makeHandlerName(eventName)], this);
    }, this);
    this._meshes.push(mesh2);
  },
  detachFromMesh: function(mesh2) {
    var idx = this._meshes.indexOf(mesh2);
    if (idx >= 0) {
      this._meshes.splice(idx, 1);
    }
    events.forEach(function(eventName) {
      mesh2.off(eventName, this[makeHandlerName(eventName)]);
    }, this);
  },
  dispose: function() {
    this._meshes.forEach(function(mesh2) {
      this.detachFromMesh(mesh2);
    }, this);
  }
};
var Orthographic = Camera.extend(
  /** @lends clay.camera.Orthographic# */
  {
    /**
     * @type {number}
     */
    left: -1,
    /**
     * @type {number}
     */
    right: 1,
    /**
     * @type {number}
     */
    near: -1,
    /**
     * @type {number}
     */
    far: 1,
    /**
     * @type {number}
     */
    top: 1,
    /**
     * @type {number}
     */
    bottom: -1
  },
  /** @lends clay.camera.Orthographic.prototype */
  {
    updateProjectionMatrix: function() {
      this.projectionMatrix.ortho(this.left, this.right, this.bottom, this.top, this.near, this.far);
    },
    decomposeProjectionMatrix: function() {
      var m = this.projectionMatrix.array;
      this.left = (-1 - m[12]) / m[0];
      this.right = (1 - m[12]) / m[0];
      this.top = (1 - m[13]) / m[5];
      this.bottom = (-1 - m[13]) / m[5];
      this.near = -(-1 - m[14]) / m[10];
      this.far = -(1 - m[14]) / m[10];
    },
    /**
     * @return {clay.camera.Orthographic}
     */
    clone: function() {
      var camera2 = Camera.prototype.clone.call(this);
      camera2.left = this.left;
      camera2.right = this.right;
      camera2.near = this.near;
      camera2.far = this.far;
      camera2.top = this.top;
      camera2.bottom = this.bottom;
      return camera2;
    }
  }
);
const vertexGlsl = "\n@export clay.compositor.vertex\nuniform mat4 worldViewProjection : WORLDVIEWPROJECTION;\nattribute vec3 position : POSITION;\nattribute vec2 texcoord : TEXCOORD_0;\nvarying vec2 v_Texcoord;\nvoid main()\n{\n v_Texcoord = texcoord;\n gl_Position = worldViewProjection * vec4(position, 1.0);\n}\n@end";
Shader["import"](vertexGlsl);
var planeGeo = new Plane();
var mesh = new Mesh({
  geometry: planeGeo,
  frustumCulling: false
});
var camera = new Orthographic();
var Pass = Base.extend(
  function() {
    return (
      /** @lends clay.compositor.Pass# */
      {
        /**
         * Fragment shader string
         * @type {string}
         */
        // PENDING shader or fragment ?
        fragment: "",
        /**
         * @type {Object}
         */
        outputs: null,
        /**
         * @type {clay.Material}
         */
        material: null,
        /**
         * @type {Boolean}
         */
        blendWithPrevious: false,
        /**
         * @type {Boolean}
         */
        clearColor: false,
        /**
         * @type {Boolean}
         */
        clearDepth: true
      }
    );
  },
  function() {
    var shader = new Shader(Shader.source("clay.compositor.vertex"), this.fragment);
    var material = new Material({
      shader
    });
    material.enableTexturesAll();
    this.material = material;
  },
  /** @lends clay.compositor.Pass.prototype */
  {
    /**
     * @param {string} name
     * @param {} value
     */
    setUniform: function(name, value) {
      this.material.setUniform(name, value);
    },
    /**
     * @param  {string} name
     * @return {}
     */
    getUniform: function(name) {
      var uniform = this.material.uniforms[name];
      if (uniform) {
        return uniform.value;
      }
    },
    /**
     * @param  {clay.Texture} texture
     * @param  {number} attachment
     */
    attachOutput: function(texture, attachment) {
      if (!this.outputs) {
        this.outputs = {};
      }
      attachment = attachment || glenum.COLOR_ATTACHMENT0;
      this.outputs[attachment] = texture;
    },
    /**
     * @param  {clay.Texture} texture
     */
    detachOutput: function(texture) {
      for (var attachment in this.outputs) {
        if (this.outputs[attachment] === texture) {
          this.outputs[attachment] = null;
        }
      }
    },
    bind: function(renderer, frameBuffer) {
      if (this.outputs) {
        for (var attachment in this.outputs) {
          var texture = this.outputs[attachment];
          if (texture) {
            frameBuffer.attach(texture, attachment);
          }
        }
      }
      if (frameBuffer) {
        frameBuffer.bind(renderer);
      }
    },
    unbind: function(renderer, frameBuffer) {
      frameBuffer.unbind(renderer);
    },
    /**
     * @param  {clay.Renderer} renderer
     * @param  {clay.FrameBuffer} [frameBuffer]
     */
    render: function(renderer, frameBuffer) {
      var _gl = renderer.gl;
      if (frameBuffer) {
        this.bind(renderer, frameBuffer);
        var ext = renderer.getGLExtension("EXT_draw_buffers");
        if (ext && this.outputs) {
          var bufs = [];
          for (var attachment in this.outputs) {
            attachment = +attachment;
            if (attachment >= _gl.COLOR_ATTACHMENT0 && attachment <= _gl.COLOR_ATTACHMENT0 + 8) {
              bufs.push(attachment);
            }
          }
          ext.drawBuffersEXT(bufs);
        }
      }
      this.trigger("beforerender", this, renderer);
      var clearBit = this.clearDepth ? _gl.DEPTH_BUFFER_BIT : 0;
      _gl.depthMask(true);
      if (this.clearColor) {
        clearBit = clearBit | _gl.COLOR_BUFFER_BIT;
        _gl.colorMask(true, true, true, true);
        var cc = this.clearColor;
        if (Array.isArray(cc)) {
          _gl.clearColor(cc[0], cc[1], cc[2], cc[3]);
        }
      }
      _gl.clear(clearBit);
      if (this.blendWithPrevious) {
        _gl.enable(_gl.BLEND);
        this.material.transparent = true;
      } else {
        _gl.disable(_gl.BLEND);
        this.material.transparent = false;
      }
      this.renderQuad(renderer);
      this.trigger("afterrender", this, renderer);
      if (frameBuffer) {
        this.unbind(renderer, frameBuffer);
      }
    },
    /**
     * Simply do quad rendering
     */
    renderQuad: function(renderer) {
      mesh.material = this.material;
      renderer.renderPass([mesh], camera);
    },
    /**
     * @param  {clay.Renderer} renderer
     */
    dispose: function(renderer) {
    }
  }
);
const integrateBRDFShaderCode = "#define SAMPLE_NUMBER 1024\n#define PI 3.14159265358979\nuniform sampler2D normalDistribution;\nuniform vec2 viewportSize : [512, 256];\nconst vec3 N = vec3(0.0, 0.0, 1.0);\nconst float fSampleNumber = float(SAMPLE_NUMBER);\nvec3 importanceSampleNormal(float i, float roughness, vec3 N) {\n vec3 H = texture2D(normalDistribution, vec2(roughness, i)).rgb;\n vec3 upVector = abs(N.y) > 0.999 ? vec3(1.0, 0.0, 0.0) : vec3(0.0, 1.0, 0.0);\n vec3 tangentX = normalize(cross(N, upVector));\n vec3 tangentZ = cross(N, tangentX);\n return normalize(tangentX * H.x + N * H.y + tangentZ * H.z);\n}\nfloat G_Smith(float roughness, float NoV, float NoL) {\n float k = roughness * roughness / 2.0;\n float G1V = NoV / (NoV * (1.0 - k) + k);\n float G1L = NoL / (NoL * (1.0 - k) + k);\n return G1L * G1V;\n}\nvoid main() {\n vec2 uv = gl_FragCoord.xy / viewportSize;\n float NoV = uv.x;\n float roughness = uv.y;\n vec3 V;\n V.x = sqrt(1.0 - NoV * NoV);\n V.y = 0.0;\n V.z = NoV;\n float A = 0.0;\n float B = 0.0;\n for (int i = 0; i < SAMPLE_NUMBER; i++) {\n vec3 H = importanceSampleNormal(float(i) / fSampleNumber, roughness, N);\n vec3 L = reflect(-V, H);\n float NoL = clamp(L.z, 0.0, 1.0);\n float NoH = clamp(H.z, 0.0, 1.0);\n float VoH = clamp(dot(V, H), 0.0, 1.0);\n if (NoL > 0.0) {\n float G = G_Smith(roughness, NoV, NoL);\n float G_Vis = G * VoH / (NoH * NoV);\n float Fc = pow(1.0 - VoH, 5.0);\n A += (1.0 - Fc) * G_Vis;\n B += Fc * G_Vis;\n }\n }\n gl_FragColor = vec4(vec2(A, B) / fSampleNumber, 0.0, 1.0);\n}\n";
const prefilterFragCode = "#define SHADER_NAME prefilter\n#define SAMPLE_NUMBER 1024\n#define PI 3.14159265358979\nuniform mat4 viewInverse : VIEWINVERSE;\nuniform samplerCube environmentMap;\nuniform sampler2D normalDistribution;\nuniform float roughness : 0.5;\nvarying vec2 v_Texcoord;\nvarying vec3 v_WorldPosition;\n@import clay.util.rgbm\nvec3 importanceSampleNormal(float i, float roughness, vec3 N) {\n vec3 H = texture2D(normalDistribution, vec2(roughness, i)).rgb;\n vec3 upVector = abs(N.y) > 0.999 ? vec3(1.0, 0.0, 0.0) : vec3(0.0, 1.0, 0.0);\n vec3 tangentX = normalize(cross(N, upVector));\n vec3 tangentZ = cross(N, tangentX);\n return normalize(tangentX * H.x + N * H.y + tangentZ * H.z);\n}\nvoid main() {\n vec3 eyePos = viewInverse[3].xyz;\n vec3 V = normalize(v_WorldPosition - eyePos);\n vec3 N = V;\n vec3 prefilteredColor = vec3(0.0);\n float totalWeight = 0.0;\n float fMaxSampleNumber = float(SAMPLE_NUMBER);\n for (int i = 0; i < SAMPLE_NUMBER; i++) {\n vec3 H = importanceSampleNormal(float(i) / fMaxSampleNumber, roughness, N);\n vec3 L = reflect(-V, H);\n float NoL = clamp(dot(N, L), 0.0, 1.0);\n if (NoL > 0.0) {\n prefilteredColor += decodeHDR(textureCube(environmentMap, L)).rgb * NoL;\n totalWeight += NoL;\n }\n }\n gl_FragColor = encodeHDR(vec4(prefilteredColor / totalWeight, 1.0));\n}\n";
var cubemapUtil = {};
var targets$2 = ["px", "nx", "py", "ny", "pz", "nz"];
cubemapUtil.prefilterEnvironmentMap = function(renderer, envMap, textureOpts, normalDistribution, brdfLookup) {
  if (!brdfLookup || !normalDistribution) {
    normalDistribution = cubemapUtil.generateNormalDistribution();
    brdfLookup = cubemapUtil.integrateBRDF(renderer, normalDistribution);
  }
  textureOpts = textureOpts || {};
  var width = textureOpts.width || 64;
  var height = textureOpts.height || 64;
  var textureType = textureOpts.type || envMap.type;
  var prefilteredCubeMap = new TextureCube({
    width,
    height,
    type: textureType,
    flipY: false,
    mipmaps: []
  });
  if (!prefilteredCubeMap.isPowerOfTwo()) {
    console.warn("Width and height must be power of two to enable mipmap.");
  }
  var size = Math.min(width, height);
  var mipmapNum = Math.log(size) / Math.log(2) + 1;
  var prefilterMaterial = new Material({
    shader: new Shader({
      vertex: Shader.source("clay.skybox.vertex"),
      fragment: prefilterFragCode
    })
  });
  prefilterMaterial.set("normalDistribution", normalDistribution);
  textureOpts.encodeRGBM && prefilterMaterial.define("fragment", "RGBM_ENCODE");
  textureOpts.decodeRGBM && prefilterMaterial.define("fragment", "RGBM_DECODE");
  var dummyScene = new Scene();
  var skyEnv;
  if (envMap.textureType === "texture2D") {
    var envCubemap = new TextureCube({
      width,
      height,
      // FIXME FLOAT type will cause GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT error on iOS
      type: textureType === Texture.FLOAT ? Texture.HALF_FLOAT : textureType
    });
    textureUtil.panoramaToCubeMap(renderer, envMap, envCubemap, {
      // PENDING encodeRGBM so it can be decoded as RGBM
      encodeRGBM: textureOpts.decodeRGBM
    });
    envMap = envCubemap;
  }
  skyEnv = new Skybox({
    scene: dummyScene,
    material: prefilterMaterial
  });
  skyEnv.material.set("environmentMap", envMap);
  var envMapPass = new EnvironmentMapPass({
    texture: prefilteredCubeMap
  });
  if (textureOpts.encodeRGBM) {
    textureType = prefilteredCubeMap.type = Texture.UNSIGNED_BYTE;
  }
  var renderTargetTmp = new Texture2D({
    width,
    height,
    type: textureType
  });
  var frameBuffer = new FrameBuffer({
    depthBuffer: false
  });
  var ArrayCtor = vendor[textureType === Texture.UNSIGNED_BYTE ? "Uint8Array" : "Float32Array"];
  for (var i = 0; i < mipmapNum; i++) {
    prefilteredCubeMap.mipmaps[i] = {
      pixels: {}
    };
    skyEnv.material.set("roughness", i / (mipmapNum - 1));
    var n = renderTargetTmp.width;
    var fov = 2 * Math.atan(n / (n - 0.5)) / Math.PI * 180;
    for (var j = 0; j < targets$2.length; j++) {
      var pixels = new ArrayCtor(renderTargetTmp.width * renderTargetTmp.height * 4);
      frameBuffer.attach(renderTargetTmp);
      frameBuffer.bind(renderer);
      var camera2 = envMapPass.getCamera(targets$2[j]);
      camera2.fov = fov;
      renderer.render(dummyScene, camera2);
      renderer.gl.readPixels(
        0,
        0,
        renderTargetTmp.width,
        renderTargetTmp.height,
        Texture.RGBA,
        textureType,
        pixels
      );
      frameBuffer.unbind(renderer);
      prefilteredCubeMap.mipmaps[i].pixels[targets$2[j]] = pixels;
    }
    renderTargetTmp.width /= 2;
    renderTargetTmp.height /= 2;
    renderTargetTmp.dirty();
  }
  frameBuffer.dispose(renderer);
  renderTargetTmp.dispose(renderer);
  skyEnv.dispose(renderer);
  normalDistribution.dispose(renderer);
  return {
    environmentMap: prefilteredCubeMap,
    brdfLookup,
    normalDistribution,
    maxMipmapLevel: mipmapNum
  };
};
cubemapUtil.integrateBRDF = function(renderer, normalDistribution) {
  normalDistribution = normalDistribution || cubemapUtil.generateNormalDistribution();
  var framebuffer = new FrameBuffer({
    depthBuffer: false
  });
  var pass = new Pass({
    fragment: integrateBRDFShaderCode
  });
  var texture = new Texture2D({
    width: 512,
    height: 256,
    type: Texture.HALF_FLOAT,
    wrapS: Texture.CLAMP_TO_EDGE,
    wrapT: Texture.CLAMP_TO_EDGE,
    minFilter: Texture.NEAREST,
    magFilter: Texture.NEAREST,
    useMipmap: false
  });
  pass.setUniform("normalDistribution", normalDistribution);
  pass.setUniform("viewportSize", [512, 256]);
  pass.attachOutput(texture);
  pass.render(renderer, framebuffer);
  framebuffer.dispose(renderer);
  return texture;
};
cubemapUtil.generateNormalDistribution = function(roughnessLevels, sampleSize) {
  var roughnessLevels = roughnessLevels || 256;
  var sampleSize = sampleSize || 1024;
  var normalDistribution = new Texture2D({
    width: roughnessLevels,
    height: sampleSize,
    type: Texture.FLOAT,
    minFilter: Texture.NEAREST,
    magFilter: Texture.NEAREST,
    wrapS: Texture.CLAMP_TO_EDGE,
    wrapT: Texture.CLAMP_TO_EDGE,
    useMipmap: false
  });
  var pixels = new Float32Array(sampleSize * roughnessLevels * 4);
  var tmp = [];
  for (var j = 0; j < roughnessLevels; j++) {
    var roughness = j / roughnessLevels;
    var a = roughness * roughness;
    for (var i = 0; i < sampleSize; i++) {
      var y = (i << 16 | i >>> 16) >>> 0;
      y = ((y & 1431655765) << 1 | (y & 2863311530) >>> 1) >>> 0;
      y = ((y & 858993459) << 2 | (y & 3435973836) >>> 2) >>> 0;
      y = ((y & 252645135) << 4 | (y & 4042322160) >>> 4) >>> 0;
      y = (((y & 16711935) << 8 | (y & 4278255360) >>> 8) >>> 0) / 4294967296;
      var cosTheta = Math.sqrt((1 - y) / (1 + (a * a - 1) * y));
      tmp[i] = cosTheta;
    }
    for (var i = 0; i < sampleSize; i++) {
      var offset = (i * roughnessLevels + j) * 4;
      var cosTheta = tmp[i];
      var sinTheta = Math.sqrt(1 - cosTheta * cosTheta);
      var x = i / sampleSize;
      var phi = 2 * Math.PI * x;
      pixels[offset] = sinTheta * Math.cos(phi);
      pixels[offset + 1] = cosTheta;
      pixels[offset + 2] = sinTheta * Math.sin(phi);
      pixels[offset + 3] = 1;
    }
  }
  normalDistribution.pixels = pixels;
  return normalDistribution;
};
var AmbientCubemapLight = Light.extend(
  {
    /**
     * @type {clay.TextureCube}
     * @memberOf clay.light.AmbientCubemap#
     */
    cubemap: null,
    // TODO
    // range: 100,
    castShadow: false,
    _normalDistribution: null,
    _brdfLookup: null
  },
  /** @lends clay.light.AmbientCubemap# */
  {
    type: "AMBIENT_CUBEMAP_LIGHT",
    /**
     * Do prefitering the cubemap
     * @param {clay.Renderer} renderer
     * @param {number} [size=32]
     */
    prefilter: function(renderer, size) {
      if (!renderer.getGLExtension("EXT_shader_texture_lod")) {
        console.warn("Device not support textureCubeLodEXT");
        return;
      }
      if (!this._brdfLookup) {
        this._normalDistribution = cubemapUtil.generateNormalDistribution();
        this._brdfLookup = cubemapUtil.integrateBRDF(renderer, this._normalDistribution);
      }
      var cubemap = this.cubemap;
      if (cubemap.__prefiltered) {
        return;
      }
      var result = cubemapUtil.prefilterEnvironmentMap(
        renderer,
        cubemap,
        {
          encodeRGBM: true,
          width: size,
          height: size
        },
        this._normalDistribution,
        this._brdfLookup
      );
      this.cubemap = result.environmentMap;
      this.cubemap.__prefiltered = true;
      cubemap.dispose(renderer);
    },
    getBRDFLookup: function() {
      return this._brdfLookup;
    },
    uniformTemplates: {
      ambientCubemapLightColor: {
        type: "3f",
        value: function(instance) {
          var color = instance.color;
          var intensity = instance.intensity;
          return [color[0] * intensity, color[1] * intensity, color[2] * intensity];
        }
      },
      ambientCubemapLightCubemap: {
        type: "t",
        value: function(instance) {
          return instance.cubemap;
        }
      },
      ambientCubemapLightBRDFLookup: {
        type: "t",
        value: function(instance) {
          return instance._brdfLookup;
        }
      }
    }
    /**
     * @function
     * @name clone
     * @return {clay.light.AmbientCubemap}
     * @memberOf clay.light.AmbientCubemap.prototype
     */
  }
);
var AmbientSHLight = Light.extend({
  castShadow: false,
  /**
   * Spherical Harmonic Coefficients
   * @type {Array.<number>}
   * @memberOf clay.light.AmbientSH#
   */
  coefficients: []
}, function() {
  this._coefficientsTmpArr = new vendor.Float32Array(9 * 3);
}, {
  type: "AMBIENT_SH_LIGHT",
  uniformTemplates: {
    ambientSHLightColor: {
      type: "3f",
      value: function(instance) {
        var color = instance.color;
        var intensity = instance.intensity;
        return [color[0] * intensity, color[1] * intensity, color[2] * intensity];
      }
    },
    ambientSHLightCoefficients: {
      type: "3f",
      value: function(instance) {
        var coefficientsTmpArr = instance._coefficientsTmpArr;
        for (var i = 0; i < instance.coefficients.length; i++) {
          coefficientsTmpArr[i] = instance.coefficients[i];
        }
        return coefficientsTmpArr;
      }
    }
  }
  /**
   * @function
   * @name clone
   * @return {clay.light.Ambient}
   * @memberOf clay.light.Ambient.prototype
   */
});
var sh = {};
var targets$1 = ["px", "nx", "py", "ny", "pz", "nz"];
function harmonics(normal2, index) {
  var x = normal2[0];
  var y = normal2[1];
  var z = normal2[2];
  if (index === 0) {
    return 1;
  } else if (index === 1) {
    return x;
  } else if (index === 2) {
    return y;
  } else if (index === 3) {
    return z;
  } else if (index === 4) {
    return x * z;
  } else if (index === 5) {
    return y * z;
  } else if (index === 6) {
    return x * y;
  } else if (index === 7) {
    return 3 * z * z - 1;
  } else {
    return x * x - y * y;
  }
}
var normalTransform = {
  px: [2, 1, 0, -1, -1, 1],
  nx: [2, 1, 0, 1, -1, -1],
  py: [0, 2, 1, 1, -1, -1],
  ny: [0, 2, 1, 1, 1, 1],
  pz: [0, 1, 2, -1, -1, -1],
  nz: [0, 1, 2, 1, -1, 1]
};
function projectEnvironmentMapCPU(renderer, cubePixels, width, height) {
  var coeff = new vendor.Float32Array(9 * 3);
  var normal2 = vec3$f.create();
  var texel = vec3$f.create();
  var fetchNormal = vec3$f.create();
  for (var m = 0; m < 9; m++) {
    var result = vec3$f.create();
    for (var k = 0; k < targets$1.length; k++) {
      var pixels = cubePixels[targets$1[k]];
      var sideResult = vec3$f.create();
      var divider = 0;
      var i = 0;
      var transform = normalTransform[targets$1[k]];
      for (var y = 0; y < height; y++) {
        for (var x = 0; x < width; x++) {
          normal2[0] = x / (width - 1) * 2 - 1;
          normal2[1] = y / (height - 1) * 2 - 1;
          normal2[2] = -1;
          vec3$f.normalize(normal2, normal2);
          fetchNormal[0] = normal2[transform[0]] * transform[3];
          fetchNormal[1] = normal2[transform[1]] * transform[4];
          fetchNormal[2] = normal2[transform[2]] * transform[5];
          texel[0] = pixels[i++] / 255;
          texel[1] = pixels[i++] / 255;
          texel[2] = pixels[i++] / 255;
          var scale = pixels[i++] / 255 * 8.12;
          texel[0] *= scale;
          texel[1] *= scale;
          texel[2] *= scale;
          vec3$f.scaleAndAdd(sideResult, sideResult, texel, harmonics(fetchNormal, m) * -normal2[2]);
          divider += -normal2[2];
        }
      }
      vec3$f.scaleAndAdd(result, result, sideResult, 1 / divider);
    }
    coeff[m * 3] = result[0] / 6;
    coeff[m * 3 + 1] = result[1] / 6;
    coeff[m * 3 + 2] = result[2] / 6;
  }
  return coeff;
}
sh.projectEnvironmentMap = function(renderer, envMap, opts) {
  opts = opts || {};
  opts.lod = opts.lod || 0;
  var skybox;
  var dummyScene = new Scene();
  var size = 64;
  if (envMap.textureType === "texture2D") {
    skybox = new Skybox({
      scene: dummyScene,
      environmentMap: envMap
    });
  } else {
    size = envMap.image && envMap.image.px ? envMap.image.px.width : envMap.width;
    skybox = new Skybox({
      scene: dummyScene,
      environmentMap: envMap
    });
  }
  var width = Math.ceil(size / Math.pow(2, opts.lod));
  var height = Math.ceil(size / Math.pow(2, opts.lod));
  var rgbmTexture = new Texture2D({
    width,
    height
  });
  var framebuffer = new FrameBuffer();
  skybox.material.define("fragment", "RGBM_ENCODE");
  if (opts.decodeRGBM) {
    skybox.material.define("fragment", "RGBM_DECODE");
  }
  skybox.material.set("lod", opts.lod);
  var envMapPass = new EnvironmentMapPass({
    texture: rgbmTexture
  });
  var cubePixels = {};
  for (var i = 0; i < targets$1.length; i++) {
    cubePixels[targets$1[i]] = new Uint8Array(width * height * 4);
    var camera2 = envMapPass.getCamera(targets$1[i]);
    camera2.fov = 90;
    framebuffer.attach(rgbmTexture);
    framebuffer.bind(renderer);
    renderer.render(dummyScene, camera2);
    renderer.gl.readPixels(
      0,
      0,
      width,
      height,
      Texture.RGBA,
      Texture.UNSIGNED_BYTE,
      cubePixels[targets$1[i]]
    );
    framebuffer.unbind(renderer);
  }
  skybox.dispose(renderer);
  framebuffer.dispose(renderer);
  rgbmTexture.dispose(renderer);
  return projectEnvironmentMapCPU(renderer, cubePixels, width, height);
};
var retrieve = {
  firstNotNull: function() {
    for (var i = 0, len = arguments.length; i < len; i++) {
      if (arguments[i] != null) {
        return arguments[i];
      }
    }
  },
  /**
   * @param {module:echarts/data/List} data
   * @param {Object} payload Contains dataIndex (means rawIndex) / dataIndexInside / name
   *                         each of which can be Array or primary type.
   * @return {number|Array.<number>} dataIndex If not found, return undefined/null.
   */
  queryDataIndex: function(data, payload) {
    if (payload.dataIndexInside != null) {
      return payload.dataIndexInside;
    } else if (payload.dataIndex != null) {
      return isArray(payload.dataIndex) ? map$1(payload.dataIndex, function(value) {
        return data.indexOfRawIndex(value);
      }) : data.indexOfRawIndex(payload.dataIndex);
    } else if (payload.name != null) {
      return isArray(payload.name) ? map$1(payload.name, function(value) {
        return data.indexOfName(value);
      }) : data.indexOfName(payload.name);
    }
  }
};
var Sphere = Geometry.extend(
  /** @lends clay.geometry.Sphere# */
  {
    dynamic: false,
    /**
     * @type {number}
     */
    widthSegments: 40,
    /**
     * @type {number}
     */
    heightSegments: 20,
    /**
     * @type {number}
     */
    phiStart: 0,
    /**
     * @type {number}
     */
    phiLength: Math.PI * 2,
    /**
     * @type {number}
     */
    thetaStart: 0,
    /**
     * @type {number}
     */
    thetaLength: Math.PI,
    /**
     * @type {number}
     */
    radius: 1
  },
  function() {
    this.build();
  },
  /** @lends clay.geometry.Sphere.prototype */
  {
    /**
     * Build sphere geometry
     */
    build: function() {
      var heightSegments = this.heightSegments;
      var widthSegments = this.widthSegments;
      var positionAttr = this.attributes.position;
      var texcoordAttr = this.attributes.texcoord0;
      var normalAttr = this.attributes.normal;
      var vertexCount = (widthSegments + 1) * (heightSegments + 1);
      positionAttr.init(vertexCount);
      texcoordAttr.init(vertexCount);
      normalAttr.init(vertexCount);
      var IndicesCtor = vertexCount > 65535 ? Uint32Array : Uint16Array;
      var indices = this.indices = new IndicesCtor(widthSegments * heightSegments * 6);
      var x, y, z, u, v, i, j;
      var radius = this.radius;
      var phiStart = this.phiStart;
      var phiLength = this.phiLength;
      var thetaStart = this.thetaStart;
      var thetaLength = this.thetaLength;
      var radius = this.radius;
      var pos = [];
      var uv = [];
      var offset = 0;
      var divider = 1 / radius;
      for (j = 0; j <= heightSegments; j++) {
        for (i = 0; i <= widthSegments; i++) {
          u = i / widthSegments;
          v = j / heightSegments;
          x = -radius * Math.cos(phiStart + u * phiLength) * Math.sin(thetaStart + v * thetaLength);
          y = radius * Math.cos(thetaStart + v * thetaLength);
          z = radius * Math.sin(phiStart + u * phiLength) * Math.sin(thetaStart + v * thetaLength);
          pos[0] = x;
          pos[1] = y;
          pos[2] = z;
          uv[0] = u;
          uv[1] = v;
          positionAttr.set(offset, pos);
          texcoordAttr.set(offset, uv);
          pos[0] *= divider;
          pos[1] *= divider;
          pos[2] *= divider;
          normalAttr.set(offset, pos);
          offset++;
        }
      }
      var i1, i2, i3, i4;
      var len = widthSegments + 1;
      var n = 0;
      for (j = 0; j < heightSegments; j++) {
        for (i = 0; i < widthSegments; i++) {
          i2 = j * len + i;
          i1 = j * len + i + 1;
          i4 = (j + 1) * len + i + 1;
          i3 = (j + 1) * len + i;
          indices[n++] = i1;
          indices[n++] = i2;
          indices[n++] = i4;
          indices[n++] = i2;
          indices[n++] = i3;
          indices[n++] = i4;
        }
      }
      this.boundingBox = new BoundingBox();
      this.boundingBox.max.set(radius, radius, radius);
      this.boundingBox.min.set(-radius, -radius, -radius);
    }
  }
);
var AmbientLight = Light.extend({
  castShadow: false
}, {
  type: "AMBIENT_LIGHT",
  uniformTemplates: {
    ambientLightColor: {
      type: "3f",
      value: function(instance) {
        var color = instance.color;
        var intensity = instance.intensity;
        return [color[0] * intensity, color[1] * intensity, color[2] * intensity];
      }
    }
  }
  /**
   * @function
   * @name clone
   * @return {clay.light.Ambient}
   * @memberOf clay.light.Ambient.prototype
   */
});
var DirectionalLight = Light.extend(
  /** @lends clay.light.Directional# */
  {
    /**
     * @type {number}
     */
    shadowBias: 1e-3,
    /**
     * @type {number}
     */
    shadowSlopeScale: 2,
    /**
     * Shadow cascade.
     * Use PSSM technique when it is larger than 1 and have a unique directional light in scene.
     * @type {number}
     */
    shadowCascade: 1,
    /**
     * Available when shadowCascade is larger than 1 and have a unique directional light in scene.
     * @type {number}
     */
    cascadeSplitLogFactor: 0.2
  },
  {
    type: "DIRECTIONAL_LIGHT",
    uniformTemplates: {
      directionalLightDirection: {
        type: "3f",
        value: function(instance) {
          instance.__dir = instance.__dir || new Vector3();
          return instance.__dir.copy(instance.worldTransform.z).normalize().negate().array;
        }
      },
      directionalLightColor: {
        type: "3f",
        value: function(instance) {
          var color = instance.color;
          var intensity = instance.intensity;
          return [color[0] * intensity, color[1] * intensity, color[2] * intensity];
        }
      }
    },
    /**
     * @return {clay.light.Directional}
     * @memberOf clay.light.Directional.prototype
     */
    clone: function() {
      var light = Light.prototype.clone.call(this);
      light.shadowBias = this.shadowBias;
      light.shadowSlopeScale = this.shadowSlopeScale;
      return light;
    }
  }
);
var PointLight = Light.extend(
  /** @lends clay.light.Point# */
  {
    /**
     * @type {number}
     */
    range: 100,
    /**
     * @type {number}
     */
    castShadow: false
  },
  {
    type: "POINT_LIGHT",
    uniformTemplates: {
      pointLightPosition: {
        type: "3f",
        value: function(instance) {
          return instance.getWorldPosition().array;
        }
      },
      pointLightRange: {
        type: "1f",
        value: function(instance) {
          return instance.range;
        }
      },
      pointLightColor: {
        type: "3f",
        value: function(instance) {
          var color = instance.color;
          var intensity = instance.intensity;
          return [color[0] * intensity, color[1] * intensity, color[2] * intensity];
        }
      }
    },
    /**
     * @return {clay.light.Point}
     * @memberOf clay.light.Point.prototype
     */
    clone: function() {
      var light = Light.prototype.clone.call(this);
      light.range = this.range;
      return light;
    }
  }
);
var SpotLight = Light.extend(
  /**@lends clay.light.Spot */
  {
    /**
     * @type {number}
     */
    range: 20,
    /**
     * @type {number}
     */
    umbraAngle: 30,
    /**
     * @type {number}
     */
    penumbraAngle: 45,
    /**
     * @type {number}
     */
    falloffFactor: 2,
    /**
     * @type {number}
     */
    shadowBias: 1e-3,
    /**
     * @type {number}
     */
    shadowSlopeScale: 2
  },
  {
    type: "SPOT_LIGHT",
    uniformTemplates: {
      spotLightPosition: {
        type: "3f",
        value: function(instance) {
          return instance.getWorldPosition().array;
        }
      },
      spotLightRange: {
        type: "1f",
        value: function(instance) {
          return instance.range;
        }
      },
      spotLightUmbraAngleCosine: {
        type: "1f",
        value: function(instance) {
          return Math.cos(instance.umbraAngle * Math.PI / 180);
        }
      },
      spotLightPenumbraAngleCosine: {
        type: "1f",
        value: function(instance) {
          return Math.cos(instance.penumbraAngle * Math.PI / 180);
        }
      },
      spotLightFalloffFactor: {
        type: "1f",
        value: function(instance) {
          return instance.falloffFactor;
        }
      },
      spotLightDirection: {
        type: "3f",
        value: function(instance) {
          instance.__dir = instance.__dir || new Vector3();
          return instance.__dir.copy(instance.worldTransform.z).negate().array;
        }
      },
      spotLightColor: {
        type: "3f",
        value: function(instance) {
          var color = instance.color;
          var intensity = instance.intensity;
          return [color[0] * intensity, color[1] * intensity, color[2] * intensity];
        }
      }
    },
    /**
     * @return {clay.light.Spot}
     * @memberOf clay.light.Spot.prototype
     */
    clone: function() {
      var light = Light.prototype.clone.call(this);
      light.range = this.range;
      light.umbraAngle = this.umbraAngle;
      light.penumbraAngle = this.penumbraAngle;
      light.falloffFactor = this.falloffFactor;
      light.shadowBias = this.shadowBias;
      light.shadowSlopeScale = this.shadowSlopeScale;
      return light;
    }
  }
);
var Vector4 = function(x, y, z, w) {
  x = x || 0;
  y = y || 0;
  z = z || 0;
  w = w || 0;
  this.array = vec4$1.fromValues(x, y, z, w);
  this._dirty = true;
};
Vector4.prototype = {
  constructor: Vector4,
  /**
   * Add b to self
   * @param  {clay.Vector4} b
   * @return {clay.Vector4}
   */
  add: function(b) {
    vec4$1.add(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Set x, y and z components
   * @param  {number}  x
   * @param  {number}  y
   * @param  {number}  z
   * @param  {number}  w
   * @return {clay.Vector4}
   */
  set: function(x, y, z, w) {
    this.array[0] = x;
    this.array[1] = y;
    this.array[2] = z;
    this.array[3] = w;
    this._dirty = true;
    return this;
  },
  /**
   * Set x, y, z and w components from array
   * @param  {Float32Array|number[]} arr
   * @return {clay.Vector4}
   */
  setArray: function(arr) {
    this.array[0] = arr[0];
    this.array[1] = arr[1];
    this.array[2] = arr[2];
    this.array[3] = arr[3];
    this._dirty = true;
    return this;
  },
  /**
   * Clone a new Vector4
   * @return {clay.Vector4}
   */
  clone: function() {
    return new Vector4(this.x, this.y, this.z, this.w);
  },
  /**
   * Copy from b
   * @param  {clay.Vector4} b
   * @return {clay.Vector4}
   */
  copy: function(b) {
    vec4$1.copy(this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Alias for distance
   * @param  {clay.Vector4} b
   * @return {number}
   */
  dist: function(b) {
    return vec4$1.dist(this.array, b.array);
  },
  /**
   * Distance between self and b
   * @param  {clay.Vector4} b
   * @return {number}
   */
  distance: function(b) {
    return vec4$1.distance(this.array, b.array);
  },
  /**
   * Alias for divide
   * @param  {clay.Vector4} b
   * @return {clay.Vector4}
   */
  div: function(b) {
    vec4$1.div(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Divide self by b
   * @param  {clay.Vector4} b
   * @return {clay.Vector4}
   */
  divide: function(b) {
    vec4$1.divide(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Dot product of self and b
   * @param  {clay.Vector4} b
   * @return {number}
   */
  dot: function(b) {
    return vec4$1.dot(this.array, b.array);
  },
  /**
   * Alias of length
   * @return {number}
   */
  len: function() {
    return vec4$1.len(this.array);
  },
  /**
   * Calculate the length
   * @return {number}
   */
  length: function() {
    return vec4$1.length(this.array);
  },
  /**
   * Linear interpolation between a and b
   * @param  {clay.Vector4} a
   * @param  {clay.Vector4} b
   * @param  {number}  t
   * @return {clay.Vector4}
   */
  lerp: function(a, b, t) {
    vec4$1.lerp(this.array, a.array, b.array, t);
    this._dirty = true;
    return this;
  },
  /**
   * Minimum of self and b
   * @param  {clay.Vector4} b
   * @return {clay.Vector4}
   */
  min: function(b) {
    vec4$1.min(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Maximum of self and b
   * @param  {clay.Vector4} b
   * @return {clay.Vector4}
   */
  max: function(b) {
    vec4$1.max(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Alias for multiply
   * @param  {clay.Vector4} b
   * @return {clay.Vector4}
   */
  mul: function(b) {
    vec4$1.mul(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Mutiply self and b
   * @param  {clay.Vector4} b
   * @return {clay.Vector4}
   */
  multiply: function(b) {
    vec4$1.multiply(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Negate self
   * @return {clay.Vector4}
   */
  negate: function() {
    vec4$1.negate(this.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Normalize self
   * @return {clay.Vector4}
   */
  normalize: function() {
    vec4$1.normalize(this.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Generate random x, y, z, w components with a given scale
   * @param  {number} scale
   * @return {clay.Vector4}
   */
  random: function(scale) {
    vec4$1.random(this.array, scale);
    this._dirty = true;
    return this;
  },
  /**
   * Scale self
   * @param  {number}  scale
   * @return {clay.Vector4}
   */
  scale: function(s) {
    vec4$1.scale(this.array, this.array, s);
    this._dirty = true;
    return this;
  },
  /**
   * Scale b and add to self
   * @param  {clay.Vector4} b
   * @param  {number}  scale
   * @return {clay.Vector4}
   */
  scaleAndAdd: function(b, s) {
    vec4$1.scaleAndAdd(this.array, this.array, b.array, s);
    this._dirty = true;
    return this;
  },
  /**
   * Alias for squaredDistance
   * @param  {clay.Vector4} b
   * @return {number}
   */
  sqrDist: function(b) {
    return vec4$1.sqrDist(this.array, b.array);
  },
  /**
   * Squared distance between self and b
   * @param  {clay.Vector4} b
   * @return {number}
   */
  squaredDistance: function(b) {
    return vec4$1.squaredDistance(this.array, b.array);
  },
  /**
   * Alias for squaredLength
   * @return {number}
   */
  sqrLen: function() {
    return vec4$1.sqrLen(this.array);
  },
  /**
   * Squared length of self
   * @return {number}
   */
  squaredLength: function() {
    return vec4$1.squaredLength(this.array);
  },
  /**
   * Alias for subtract
   * @param  {clay.Vector4} b
   * @return {clay.Vector4}
   */
  sub: function(b) {
    vec4$1.sub(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Subtract b from self
   * @param  {clay.Vector4} b
   * @return {clay.Vector4}
   */
  subtract: function(b) {
    vec4$1.subtract(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Transform self with a Matrix4 m
   * @param  {clay.Matrix4} m
   * @return {clay.Vector4}
   */
  transformMat4: function(m) {
    vec4$1.transformMat4(this.array, this.array, m.array);
    this._dirty = true;
    return this;
  },
  /**
   * Transform self with a Quaternion q
   * @param  {clay.Quaternion} q
   * @return {clay.Vector4}
   */
  transformQuat: function(q) {
    vec4$1.transformQuat(this.array, this.array, q.array);
    this._dirty = true;
    return this;
  },
  toString: function() {
    return "[" + Array.prototype.join.call(this.array, ",") + "]";
  },
  toArray: function() {
    return Array.prototype.slice.call(this.array);
  }
};
var defineProperty = Object.defineProperty;
if (defineProperty) {
  var proto = Vector4.prototype;
  defineProperty(proto, "x", {
    get: function() {
      return this.array[0];
    },
    set: function(value) {
      this.array[0] = value;
      this._dirty = true;
    }
  });
  defineProperty(proto, "y", {
    get: function() {
      return this.array[1];
    },
    set: function(value) {
      this.array[1] = value;
      this._dirty = true;
    }
  });
  defineProperty(proto, "z", {
    get: function() {
      return this.array[2];
    },
    set: function(value) {
      this.array[2] = value;
      this._dirty = true;
    }
  });
  defineProperty(proto, "w", {
    get: function() {
      return this.array[3];
    },
    set: function(value) {
      this.array[3] = value;
      this._dirty = true;
    }
  });
}
Vector4.add = function(out, a, b) {
  vec4$1.add(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Vector4.set = function(out, x, y, z, w) {
  vec4$1.set(out.array, x, y, z, w);
  out._dirty = true;
};
Vector4.copy = function(out, b) {
  vec4$1.copy(out.array, b.array);
  out._dirty = true;
  return out;
};
Vector4.dist = function(a, b) {
  return vec4$1.distance(a.array, b.array);
};
Vector4.distance = Vector4.dist;
Vector4.div = function(out, a, b) {
  vec4$1.divide(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Vector4.divide = Vector4.div;
Vector4.dot = function(a, b) {
  return vec4$1.dot(a.array, b.array);
};
Vector4.len = function(b) {
  return vec4$1.length(b.array);
};
Vector4.lerp = function(out, a, b, t) {
  vec4$1.lerp(out.array, a.array, b.array, t);
  out._dirty = true;
  return out;
};
Vector4.min = function(out, a, b) {
  vec4$1.min(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Vector4.max = function(out, a, b) {
  vec4$1.max(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Vector4.mul = function(out, a, b) {
  vec4$1.multiply(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Vector4.multiply = Vector4.mul;
Vector4.negate = function(out, a) {
  vec4$1.negate(out.array, a.array);
  out._dirty = true;
  return out;
};
Vector4.normalize = function(out, a) {
  vec4$1.normalize(out.array, a.array);
  out._dirty = true;
  return out;
};
Vector4.random = function(out, scale) {
  vec4$1.random(out.array, scale);
  out._dirty = true;
  return out;
};
Vector4.scale = function(out, a, scale) {
  vec4$1.scale(out.array, a.array, scale);
  out._dirty = true;
  return out;
};
Vector4.scaleAndAdd = function(out, a, b, scale) {
  vec4$1.scaleAndAdd(out.array, a.array, b.array, scale);
  out._dirty = true;
  return out;
};
Vector4.sqrDist = function(a, b) {
  return vec4$1.sqrDist(a.array, b.array);
};
Vector4.squaredDistance = Vector4.sqrDist;
Vector4.sqrLen = function(a) {
  return vec4$1.sqrLen(a.array);
};
Vector4.squaredLength = Vector4.sqrLen;
Vector4.sub = function(out, a, b) {
  vec4$1.subtract(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Vector4.subtract = Vector4.sub;
Vector4.transformMat4 = function(out, a, m) {
  vec4$1.transformMat4(out.array, a.array, m.array);
  out._dirty = true;
  return out;
};
Vector4.transformQuat = function(out, a, q) {
  vec4$1.transformQuat(out.array, a.array, q.array);
  out._dirty = true;
  return out;
};
var mat2 = {};
mat2.create = function() {
  var out = new GLMAT_ARRAY_TYPE(4);
  out[0] = 1;
  out[1] = 0;
  out[2] = 0;
  out[3] = 1;
  return out;
};
mat2.clone = function(a) {
  var out = new GLMAT_ARRAY_TYPE(4);
  out[0] = a[0];
  out[1] = a[1];
  out[2] = a[2];
  out[3] = a[3];
  return out;
};
mat2.copy = function(out, a) {
  out[0] = a[0];
  out[1] = a[1];
  out[2] = a[2];
  out[3] = a[3];
  return out;
};
mat2.identity = function(out) {
  out[0] = 1;
  out[1] = 0;
  out[2] = 0;
  out[3] = 1;
  return out;
};
mat2.transpose = function(out, a) {
  if (out === a) {
    var a1 = a[1];
    out[1] = a[2];
    out[2] = a1;
  } else {
    out[0] = a[0];
    out[1] = a[2];
    out[2] = a[1];
    out[3] = a[3];
  }
  return out;
};
mat2.invert = function(out, a) {
  var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], det = a0 * a3 - a2 * a1;
  if (!det) {
    return null;
  }
  det = 1 / det;
  out[0] = a3 * det;
  out[1] = -a1 * det;
  out[2] = -a2 * det;
  out[3] = a0 * det;
  return out;
};
mat2.adjoint = function(out, a) {
  var a0 = a[0];
  out[0] = a[3];
  out[1] = -a[1];
  out[2] = -a[2];
  out[3] = a0;
  return out;
};
mat2.determinant = function(a) {
  return a[0] * a[3] - a[2] * a[1];
};
mat2.multiply = function(out, a, b) {
  var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];
  var b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];
  out[0] = a0 * b0 + a2 * b1;
  out[1] = a1 * b0 + a3 * b1;
  out[2] = a0 * b2 + a2 * b3;
  out[3] = a1 * b2 + a3 * b3;
  return out;
};
mat2.mul = mat2.multiply;
mat2.rotate = function(out, a, rad2) {
  var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], s = Math.sin(rad2), c = Math.cos(rad2);
  out[0] = a0 * c + a2 * s;
  out[1] = a1 * c + a3 * s;
  out[2] = a0 * -s + a2 * c;
  out[3] = a1 * -s + a3 * c;
  return out;
};
mat2.scale = function(out, a, v) {
  var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], v0 = v[0], v1 = v[1];
  out[0] = a0 * v0;
  out[1] = a1 * v0;
  out[2] = a2 * v1;
  out[3] = a3 * v1;
  return out;
};
mat2.frob = function(a) {
  return Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2));
};
mat2.LDU = function(L, D, U, a) {
  L[2] = a[2] / a[0];
  U[0] = a[0];
  U[1] = a[1];
  U[3] = a[3] - L[2] * U[1];
  return [L, D, U];
};
var Matrix2 = function() {
  this.array = mat2.create();
  this._dirty = true;
};
Matrix2.prototype = {
  constructor: Matrix2,
  /**
   * Set components from array
   * @param  {Float32Array|number[]} arr
   */
  setArray: function(arr) {
    for (var i = 0; i < this.array.length; i++) {
      this.array[i] = arr[i];
    }
    this._dirty = true;
    return this;
  },
  /**
   * Clone a new Matrix2
   * @return {clay.Matrix2}
   */
  clone: function() {
    return new Matrix2().copy(this);
  },
  /**
   * Copy from b
   * @param  {clay.Matrix2} b
   * @return {clay.Matrix2}
   */
  copy: function(b) {
    mat2.copy(this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Calculate the adjugate of self, in-place
   * @return {clay.Matrix2}
   */
  adjoint: function() {
    mat2.adjoint(this.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Calculate matrix determinant
   * @return {number}
   */
  determinant: function() {
    return mat2.determinant(this.array);
  },
  /**
   * Set to a identity matrix
   * @return {clay.Matrix2}
   */
  identity: function() {
    mat2.identity(this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Invert self
   * @return {clay.Matrix2}
   */
  invert: function() {
    mat2.invert(this.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Alias for mutiply
   * @param  {clay.Matrix2} b
   * @return {clay.Matrix2}
   */
  mul: function(b) {
    mat2.mul(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Alias for multiplyLeft
   * @param  {clay.Matrix2} a
   * @return {clay.Matrix2}
   */
  mulLeft: function(a) {
    mat2.mul(this.array, a.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Multiply self and b
   * @param  {clay.Matrix2} b
   * @return {clay.Matrix2}
   */
  multiply: function(b) {
    mat2.multiply(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Multiply a and self, a is on the left
   * @param  {clay.Matrix2} a
   * @return {clay.Matrix2}
   */
  multiplyLeft: function(a) {
    mat2.multiply(this.array, a.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Rotate self by a given radian
   * @param  {number}   rad
   * @return {clay.Matrix2}
   */
  rotate: function(rad2) {
    mat2.rotate(this.array, this.array, rad2);
    this._dirty = true;
    return this;
  },
  /**
   * Scale self by s
   * @param  {clay.Vector2}  s
   * @return {clay.Matrix2}
   */
  scale: function(v) {
    mat2.scale(this.array, this.array, v.array);
    this._dirty = true;
    return this;
  },
  /**
   * Transpose self, in-place.
   * @return {clay.Matrix2}
   */
  transpose: function() {
    mat2.transpose(this.array, this.array);
    this._dirty = true;
    return this;
  },
  toString: function() {
    return "[" + Array.prototype.join.call(this.array, ",") + "]";
  },
  toArray: function() {
    return Array.prototype.slice.call(this.array);
  }
};
Matrix2.adjoint = function(out, a) {
  mat2.adjoint(out.array, a.array);
  out._dirty = true;
  return out;
};
Matrix2.copy = function(out, a) {
  mat2.copy(out.array, a.array);
  out._dirty = true;
  return out;
};
Matrix2.determinant = function(a) {
  return mat2.determinant(a.array);
};
Matrix2.identity = function(out) {
  mat2.identity(out.array);
  out._dirty = true;
  return out;
};
Matrix2.invert = function(out, a) {
  mat2.invert(out.array, a.array);
  out._dirty = true;
  return out;
};
Matrix2.mul = function(out, a, b) {
  mat2.mul(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Matrix2.multiply = Matrix2.mul;
Matrix2.rotate = function(out, a, rad2) {
  mat2.rotate(out.array, a.array, rad2);
  out._dirty = true;
  return out;
};
Matrix2.scale = function(out, a, v) {
  mat2.scale(out.array, a.array, v.array);
  out._dirty = true;
  return out;
};
Matrix2.transpose = function(out, a) {
  mat2.transpose(out.array, a.array);
  out._dirty = true;
  return out;
};
var mat2d = {};
mat2d.create = function() {
  var out = new GLMAT_ARRAY_TYPE(6);
  out[0] = 1;
  out[1] = 0;
  out[2] = 0;
  out[3] = 1;
  out[4] = 0;
  out[5] = 0;
  return out;
};
mat2d.clone = function(a) {
  var out = new GLMAT_ARRAY_TYPE(6);
  out[0] = a[0];
  out[1] = a[1];
  out[2] = a[2];
  out[3] = a[3];
  out[4] = a[4];
  out[5] = a[5];
  return out;
};
mat2d.copy = function(out, a) {
  out[0] = a[0];
  out[1] = a[1];
  out[2] = a[2];
  out[3] = a[3];
  out[4] = a[4];
  out[5] = a[5];
  return out;
};
mat2d.identity = function(out) {
  out[0] = 1;
  out[1] = 0;
  out[2] = 0;
  out[3] = 1;
  out[4] = 0;
  out[5] = 0;
  return out;
};
mat2d.invert = function(out, a) {
  var aa = a[0], ab = a[1], ac = a[2], ad = a[3], atx = a[4], aty = a[5];
  var det = aa * ad - ab * ac;
  if (!det) {
    return null;
  }
  det = 1 / det;
  out[0] = ad * det;
  out[1] = -ab * det;
  out[2] = -ac * det;
  out[3] = aa * det;
  out[4] = (ac * aty - ad * atx) * det;
  out[5] = (ab * atx - aa * aty) * det;
  return out;
};
mat2d.determinant = function(a) {
  return a[0] * a[3] - a[1] * a[2];
};
mat2d.multiply = function(out, a, b) {
  var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5], b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5];
  out[0] = a0 * b0 + a2 * b1;
  out[1] = a1 * b0 + a3 * b1;
  out[2] = a0 * b2 + a2 * b3;
  out[3] = a1 * b2 + a3 * b3;
  out[4] = a0 * b4 + a2 * b5 + a4;
  out[5] = a1 * b4 + a3 * b5 + a5;
  return out;
};
mat2d.mul = mat2d.multiply;
mat2d.rotate = function(out, a, rad2) {
  var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5], s = Math.sin(rad2), c = Math.cos(rad2);
  out[0] = a0 * c + a2 * s;
  out[1] = a1 * c + a3 * s;
  out[2] = a0 * -s + a2 * c;
  out[3] = a1 * -s + a3 * c;
  out[4] = a4;
  out[5] = a5;
  return out;
};
mat2d.scale = function(out, a, v) {
  var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5], v0 = v[0], v1 = v[1];
  out[0] = a0 * v0;
  out[1] = a1 * v0;
  out[2] = a2 * v1;
  out[3] = a3 * v1;
  out[4] = a4;
  out[5] = a5;
  return out;
};
mat2d.translate = function(out, a, v) {
  var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5], v0 = v[0], v1 = v[1];
  out[0] = a0;
  out[1] = a1;
  out[2] = a2;
  out[3] = a3;
  out[4] = a0 * v0 + a2 * v1 + a4;
  out[5] = a1 * v0 + a3 * v1 + a5;
  return out;
};
mat2d.frob = function(a) {
  return Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + 1);
};
var Matrix2d = function() {
  this.array = mat2d.create();
  this._dirty = true;
};
Matrix2d.prototype = {
  constructor: Matrix2d,
  /**
   * Set components from array
   * @param  {Float32Array|number[]} arr
   */
  setArray: function(arr) {
    for (var i = 0; i < this.array.length; i++) {
      this.array[i] = arr[i];
    }
    this._dirty = true;
    return this;
  },
  /**
   * Clone a new Matrix2d
   * @return {clay.Matrix2d}
   */
  clone: function() {
    return new Matrix2d().copy(this);
  },
  /**
   * Copy from b
   * @param  {clay.Matrix2d} b
   * @return {clay.Matrix2d}
   */
  copy: function(b) {
    mat2d.copy(this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Calculate matrix determinant
   * @return {number}
   */
  determinant: function() {
    return mat2d.determinant(this.array);
  },
  /**
   * Set to a identity matrix
   * @return {clay.Matrix2d}
   */
  identity: function() {
    mat2d.identity(this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Invert self
   * @return {clay.Matrix2d}
   */
  invert: function() {
    mat2d.invert(this.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Alias for mutiply
   * @param  {clay.Matrix2d} b
   * @return {clay.Matrix2d}
   */
  mul: function(b) {
    mat2d.mul(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Alias for multiplyLeft
   * @param  {clay.Matrix2d} a
   * @return {clay.Matrix2d}
   */
  mulLeft: function(b) {
    mat2d.mul(this.array, b.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Multiply self and b
   * @param  {clay.Matrix2d} b
   * @return {clay.Matrix2d}
   */
  multiply: function(b) {
    mat2d.multiply(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Multiply a and self, a is on the left
   * @param  {clay.Matrix2d} a
   * @return {clay.Matrix2d}
   */
  multiplyLeft: function(b) {
    mat2d.multiply(this.array, b.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Rotate self by a given radian
   * @param  {number}   rad
   * @return {clay.Matrix2d}
   */
  rotate: function(rad2) {
    mat2d.rotate(this.array, this.array, rad2);
    this._dirty = true;
    return this;
  },
  /**
   * Scale self by s
   * @param  {clay.Vector2}  s
   * @return {clay.Matrix2d}
   */
  scale: function(s) {
    mat2d.scale(this.array, this.array, s.array);
    this._dirty = true;
    return this;
  },
  /**
   * Translate self by v
   * @param  {clay.Vector2}  v
   * @return {clay.Matrix2d}
   */
  translate: function(v) {
    mat2d.translate(this.array, this.array, v.array);
    this._dirty = true;
    return this;
  },
  toString: function() {
    return "[" + Array.prototype.join.call(this.array, ",") + "]";
  },
  toArray: function() {
    return Array.prototype.slice.call(this.array);
  }
};
Matrix2d.copy = function(out, a) {
  mat2d.copy(out.array, a.array);
  out._dirty = true;
  return out;
};
Matrix2d.determinant = function(a) {
  return mat2d.determinant(a.array);
};
Matrix2d.identity = function(out) {
  mat2d.identity(out.array);
  out._dirty = true;
  return out;
};
Matrix2d.invert = function(out, a) {
  mat2d.invert(out.array, a.array);
  out._dirty = true;
  return out;
};
Matrix2d.mul = function(out, a, b) {
  mat2d.mul(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Matrix2d.multiply = Matrix2d.mul;
Matrix2d.rotate = function(out, a, rad2) {
  mat2d.rotate(out.array, a.array, rad2);
  out._dirty = true;
  return out;
};
Matrix2d.scale = function(out, a, v) {
  mat2d.scale(out.array, a.array, v.array);
  out._dirty = true;
  return out;
};
Matrix2d.translate = function(out, a, v) {
  mat2d.translate(out.array, a.array, v.array);
  out._dirty = true;
  return out;
};
var Matrix3 = function() {
  this.array = mat3$1.create();
  this._dirty = true;
};
Matrix3.prototype = {
  constructor: Matrix3,
  /**
   * Set components from array
   * @param  {Float32Array|number[]} arr
   */
  setArray: function(arr) {
    for (var i = 0; i < this.array.length; i++) {
      this.array[i] = arr[i];
    }
    this._dirty = true;
    return this;
  },
  /**
   * Calculate the adjugate of self, in-place
   * @return {clay.Matrix3}
   */
  adjoint: function() {
    mat3$1.adjoint(this.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Clone a new Matrix3
   * @return {clay.Matrix3}
   */
  clone: function() {
    return new Matrix3().copy(this);
  },
  /**
   * Copy from b
   * @param  {clay.Matrix3} b
   * @return {clay.Matrix3}
   */
  copy: function(b) {
    mat3$1.copy(this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Calculate matrix determinant
   * @return {number}
   */
  determinant: function() {
    return mat3$1.determinant(this.array);
  },
  /**
   * Copy the values from Matrix2d a
   * @param  {clay.Matrix2d} a
   * @return {clay.Matrix3}
   */
  fromMat2d: function(a) {
    mat3$1.fromMat2d(this.array, a.array);
    this._dirty = true;
    return this;
  },
  /**
   * Copies the upper-left 3x3 values of Matrix4
   * @param  {clay.Matrix4} a
   * @return {clay.Matrix3}
   */
  fromMat4: function(a) {
    mat3$1.fromMat4(this.array, a.array);
    this._dirty = true;
    return this;
  },
  /**
   * Calculates a rotation matrix from the given quaternion
   * @param  {clay.Quaternion} q
   * @return {clay.Matrix3}
   */
  fromQuat: function(q) {
    mat3$1.fromQuat(this.array, q.array);
    this._dirty = true;
    return this;
  },
  /**
   * Set to a identity matrix
   * @return {clay.Matrix3}
   */
  identity: function() {
    mat3$1.identity(this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Invert self
   * @return {clay.Matrix3}
   */
  invert: function() {
    mat3$1.invert(this.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Alias for mutiply
   * @param  {clay.Matrix3} b
   * @return {clay.Matrix3}
   */
  mul: function(b) {
    mat3$1.mul(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Alias for multiplyLeft
   * @param  {clay.Matrix3} a
   * @return {clay.Matrix3}
   */
  mulLeft: function(a) {
    mat3$1.mul(this.array, a.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Multiply self and b
   * @param  {clay.Matrix3} b
   * @return {clay.Matrix3}
   */
  multiply: function(b) {
    mat3$1.multiply(this.array, this.array, b.array);
    this._dirty = true;
    return this;
  },
  /**
   * Multiply a and self, a is on the left
   * @param  {clay.Matrix3} a
   * @return {clay.Matrix3}
   */
  multiplyLeft: function(a) {
    mat3$1.multiply(this.array, a.array, this.array);
    this._dirty = true;
    return this;
  },
  /**
   * Rotate self by a given radian
   * @param  {number}   rad
   * @return {clay.Matrix3}
   */
  rotate: function(rad2) {
    mat3$1.rotate(this.array, this.array, rad2);
    this._dirty = true;
    return this;
  },
  /**
   * Scale self by s
   * @param  {clay.Vector2}  s
   * @return {clay.Matrix3}
   */
  scale: function(v) {
    mat3$1.scale(this.array, this.array, v.array);
    this._dirty = true;
    return this;
  },
  /**
   * Translate self by v
   * @param  {clay.Vector2}  v
   * @return {clay.Matrix3}
   */
  translate: function(v) {
    mat3$1.translate(this.array, this.array, v.array);
    this._dirty = true;
    return this;
  },
  /**
   * Calculates a 3x3 normal matrix (transpose inverse) from the 4x4 matrix
   * @param {clay.Matrix4} a
   */
  normalFromMat4: function(a) {
    mat3$1.normalFromMat4(this.array, a.array);
    this._dirty = true;
    return this;
  },
  /**
   * Transpose self, in-place.
   * @return {clay.Matrix2}
   */
  transpose: function() {
    mat3$1.transpose(this.array, this.array);
    this._dirty = true;
    return this;
  },
  toString: function() {
    return "[" + Array.prototype.join.call(this.array, ",") + "]";
  },
  toArray: function() {
    return Array.prototype.slice.call(this.array);
  }
};
Matrix3.adjoint = function(out, a) {
  mat3$1.adjoint(out.array, a.array);
  out._dirty = true;
  return out;
};
Matrix3.copy = function(out, a) {
  mat3$1.copy(out.array, a.array);
  out._dirty = true;
  return out;
};
Matrix3.determinant = function(a) {
  return mat3$1.determinant(a.array);
};
Matrix3.identity = function(out) {
  mat3$1.identity(out.array);
  out._dirty = true;
  return out;
};
Matrix3.invert = function(out, a) {
  mat3$1.invert(out.array, a.array);
  return out;
};
Matrix3.mul = function(out, a, b) {
  mat3$1.mul(out.array, a.array, b.array);
  out._dirty = true;
  return out;
};
Matrix3.multiply = Matrix3.mul;
Matrix3.fromMat2d = function(out, a) {
  mat3$1.fromMat2d(out.array, a.array);
  out._dirty = true;
  return out;
};
Matrix3.fromMat4 = function(out, a) {
  mat3$1.fromMat4(out.array, a.array);
  out._dirty = true;
  return out;
};
Matrix3.fromQuat = function(out, q) {
  mat3$1.fromQuat(out.array, q.array);
  out._dirty = true;
  return out;
};
Matrix3.normalFromMat4 = function(out, a) {
  mat3$1.normalFromMat4(out.array, a.array);
  out._dirty = true;
  return out;
};
Matrix3.rotate = function(out, a, rad2) {
  mat3$1.rotate(out.array, a.array, rad2);
  out._dirty = true;
  return out;
};
Matrix3.scale = function(out, a, v) {
  mat3$1.scale(out.array, a.array, v.array);
  out._dirty = true;
  return out;
};
Matrix3.transpose = function(out, a) {
  mat3$1.transpose(out.array, a.array);
  out._dirty = true;
  return out;
};
Matrix3.translate = function(out, a, v) {
  mat3$1.translate(out.array, a.array, v.array);
  out._dirty = true;
  return out;
};
var easingFuncs = {
  linear: function(k) {
    return k;
  },
  quadraticIn: function(k) {
    return k * k;
  },
  quadraticOut: function(k) {
    return k * (2 - k);
  },
  quadraticInOut: function(k) {
    if ((k *= 2) < 1) {
      return 0.5 * k * k;
    }
    return -0.5 * (--k * (k - 2) - 1);
  },
  cubicIn: function(k) {
    return k * k * k;
  },
  cubicOut: function(k) {
    return --k * k * k + 1;
  },
  cubicInOut: function(k) {
    if ((k *= 2) < 1) {
      return 0.5 * k * k * k;
    }
    return 0.5 * ((k -= 2) * k * k + 2);
  },
  quarticIn: function(k) {
    return k * k * k * k;
  },
  quarticOut: function(k) {
    return 1 - --k * k * k * k;
  },
  quarticInOut: function(k) {
    if ((k *= 2) < 1) {
      return 0.5 * k * k * k * k;
    }
    return -0.5 * ((k -= 2) * k * k * k - 2);
  },
  quinticIn: function(k) {
    return k * k * k * k * k;
  },
  quinticOut: function(k) {
    return --k * k * k * k * k + 1;
  },
  quinticInOut: function(k) {
    if ((k *= 2) < 1) {
      return 0.5 * k * k * k * k * k;
    }
    return 0.5 * ((k -= 2) * k * k * k * k + 2);
  },
  sinusoidalIn: function(k) {
    return 1 - Math.cos(k * Math.PI / 2);
  },
  sinusoidalOut: function(k) {
    return Math.sin(k * Math.PI / 2);
  },
  sinusoidalInOut: function(k) {
    return 0.5 * (1 - Math.cos(Math.PI * k));
  },
  exponentialIn: function(k) {
    return k === 0 ? 0 : Math.pow(1024, k - 1);
  },
  exponentialOut: function(k) {
    return k === 1 ? 1 : 1 - Math.pow(2, -10 * k);
  },
  exponentialInOut: function(k) {
    if (k === 0) {
      return 0;
    }
    if (k === 1) {
      return 1;
    }
    if ((k *= 2) < 1) {
      return 0.5 * Math.pow(1024, k - 1);
    }
    return 0.5 * (-Math.pow(2, -10 * (k - 1)) + 2);
  },
  circularIn: function(k) {
    return 1 - Math.sqrt(1 - k * k);
  },
  circularOut: function(k) {
    return Math.sqrt(1 - --k * k);
  },
  circularInOut: function(k) {
    if ((k *= 2) < 1) {
      return -0.5 * (Math.sqrt(1 - k * k) - 1);
    }
    return 0.5 * (Math.sqrt(1 - (k -= 2) * k) + 1);
  },
  elasticIn: function(k) {
    var s;
    var a = 0.1;
    var p = 0.4;
    if (k === 0) {
      return 0;
    }
    if (k === 1) {
      return 1;
    }
    if (!a || a < 1) {
      a = 1;
      s = p / 4;
    } else {
      s = p * Math.asin(1 / a) / (2 * Math.PI);
    }
    return -(a * Math.pow(2, 10 * (k -= 1)) * Math.sin((k - s) * (2 * Math.PI) / p));
  },
  elasticOut: function(k) {
    var s;
    var a = 0.1;
    var p = 0.4;
    if (k === 0) {
      return 0;
    }
    if (k === 1) {
      return 1;
    }
    if (!a || a < 1) {
      a = 1;
      s = p / 4;
    } else {
      s = p * Math.asin(1 / a) / (2 * Math.PI);
    }
    return a * Math.pow(2, -10 * k) * Math.sin((k - s) * (2 * Math.PI) / p) + 1;
  },
  elasticInOut: function(k) {
    var s;
    var a = 0.1;
    var p = 0.4;
    if (k === 0) {
      return 0;
    }
    if (k === 1) {
      return 1;
    }
    if (!a || a < 1) {
      a = 1;
      s = p / 4;
    } else {
      s = p * Math.asin(1 / a) / (2 * Math.PI);
    }
    if ((k *= 2) < 1) {
      return -0.5 * (a * Math.pow(2, 10 * (k -= 1)) * Math.sin((k - s) * (2 * Math.PI) / p));
    }
    return a * Math.pow(2, -10 * (k -= 1)) * Math.sin((k - s) * (2 * Math.PI) / p) * 0.5 + 1;
  },
  backIn: function(k) {
    var s = 1.70158;
    return k * k * ((s + 1) * k - s);
  },
  backOut: function(k) {
    var s = 1.70158;
    return --k * k * ((s + 1) * k + s) + 1;
  },
  backInOut: function(k) {
    var s = 1.70158 * 1.525;
    if ((k *= 2) < 1) {
      return 0.5 * (k * k * ((s + 1) * k - s));
    }
    return 0.5 * ((k -= 2) * k * ((s + 1) * k + s) + 2);
  },
  bounceIn: function(k) {
    return 1 - easingFuncs.bounceOut(1 - k);
  },
  bounceOut: function(k) {
    if (k < 1 / 2.75) {
      return 7.5625 * k * k;
    } else if (k < 2 / 2.75) {
      return 7.5625 * (k -= 1.5 / 2.75) * k + 0.75;
    } else if (k < 2.5 / 2.75) {
      return 7.5625 * (k -= 2.25 / 2.75) * k + 0.9375;
    } else {
      return 7.5625 * (k -= 2.625 / 2.75) * k + 0.984375;
    }
  },
  bounceInOut: function(k) {
    if (k < 0.5) {
      return easingFuncs.bounceIn(k * 2) * 0.5;
    }
    return easingFuncs.bounceOut(k * 2 - 1) * 0.5 + 0.5;
  }
};
reduce([
  "Function",
  "RegExp",
  "Date",
  "Error",
  "CanvasGradient",
  "CanvasPattern",
  "Image",
  "Canvas"
], function(obj, val) {
  obj["[object " + val + "]"] = true;
  return obj;
}, {});
reduce([
  "Int8",
  "Uint8",
  "Uint8Clamped",
  "Int16",
  "Uint16",
  "Int32",
  "Uint32",
  "Float32",
  "Float64"
], function(obj, val) {
  obj["[object " + val + "Array]"] = true;
  return obj;
}, {});
var arrayProto = Array.prototype;
var nativeSlice = arrayProto.slice;
var nativeMap = arrayProto.map;
var ctorFunction = function() {
}.constructor;
var protoFunction = ctorFunction ? ctorFunction.prototype : null;
var protoKey = "__proto__";
function logError() {
  var args = [];
  for (var _i = 0; _i < arguments.length; _i++) {
    args[_i] = arguments[_i];
  }
  if (typeof console !== "undefined") {
    console.error.apply(console, args);
  }
}
function extend(target, source) {
  if (Object.assign) {
    Object.assign(target, source);
  } else {
    for (var key in source) {
      if (source.hasOwnProperty(key) && key !== protoKey) {
        target[key] = source[key];
      }
    }
  }
  return target;
}
function isArrayLike(data) {
  if (!data) {
    return false;
  }
  if (typeof data === "string") {
    return false;
  }
  return typeof data.length === "number";
}
function map(arr, cb, context) {
  if (!arr) {
    return [];
  }
  if (!cb) {
    return slice(arr);
  }
  if (arr.map && arr.map === nativeMap) {
    return arr.map(cb, context);
  } else {
    var result = [];
    for (var i = 0, len = arr.length; i < len; i++) {
      result.push(cb.call(context, arr[i], i, arr));
    }
    return result;
  }
}
function reduce(arr, cb, memo, context) {
  if (!(arr && cb)) {
    return;
  }
  for (var i = 0, len = arr.length; i < len; i++) {
    memo = cb.call(context, memo, arr[i], i, arr);
  }
  return memo;
}
function keys(obj) {
  if (!obj) {
    return [];
  }
  if (Object.keys) {
    return Object.keys(obj);
  }
  var keyList = [];
  for (var key in obj) {
    if (obj.hasOwnProperty(key)) {
      keyList.push(key);
    }
  }
  return keyList;
}
function bindPolyfill(func, context) {
  var args = [];
  for (var _i = 2; _i < arguments.length; _i++) {
    args[_i - 2] = arguments[_i];
  }
  return function() {
    return func.apply(context, args.concat(nativeSlice.call(arguments)));
  };
}
protoFunction && isFunction(protoFunction.bind) ? protoFunction.call.bind(protoFunction.bind) : bindPolyfill;
function isFunction(value) {
  return typeof value === "function";
}
function isString(value) {
  return typeof value === "string";
}
function isNumber(value) {
  return typeof value === "number";
}
function isGradientObject(value) {
  return value.colorStops != null;
}
function eqNaN(value) {
  return value !== value;
}
function slice(arr) {
  var args = [];
  for (var _i = 1; _i < arguments.length; _i++) {
    args[_i - 1] = arguments[_i];
  }
  return nativeSlice.apply(arr, args);
}
function trim(str) {
  if (str == null) {
    return null;
  } else if (typeof str.trim === "function") {
    return str.trim();
  } else {
    return str.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, "");
  }
}
function concatArray(a, b) {
  var newArray = new a.constructor(a.length + b.length);
  for (var i = 0; i < a.length; i++) {
    newArray[i] = a[i];
  }
  var offset = a.length;
  for (var i = 0; i < b.length; i++) {
    newArray[i + offset] = b[i];
  }
  return newArray;
}
function noop() {
}
function applyTransform(out, v, m) {
  var x = v[0];
  var y = v[1];
  out[0] = m[0] * x + m[2] * y + m[4];
  out[1] = m[1] * x + m[3] * y + m[5];
  return out;
}
var mathPow = Math.pow;
var mathSqrt = Math.sqrt;
var EPSILON = 1e-8;
var THREE_SQRT = mathSqrt(3);
var ONE_THIRD = 1 / 3;
function isAroundZero(val) {
  return val > -EPSILON && val < EPSILON;
}
function cubicAt(p02, p12, p22, p3, t) {
  var onet = 1 - t;
  return onet * onet * (onet * p02 + 3 * t * p12) + t * t * (t * p3 + 3 * onet * p22);
}
function cubicRootAt(p02, p12, p22, p3, val, roots) {
  var a = p3 + 3 * (p12 - p22) - p02;
  var b = 3 * (p22 - p12 * 2 + p02);
  var c = 3 * (p12 - p02);
  var d = p02 - val;
  var A = b * b - 3 * a * c;
  var B = b * c - 9 * a * d;
  var C = c * c - 3 * b * d;
  var n = 0;
  if (isAroundZero(A) && isAroundZero(B)) {
    if (isAroundZero(b)) {
      roots[0] = 0;
    } else {
      var t1 = -c / b;
      if (t1 >= 0 && t1 <= 1) {
        roots[n++] = t1;
      }
    }
  } else {
    var disc = B * B - 4 * A * C;
    if (isAroundZero(disc)) {
      var K = B / A;
      var t1 = -b / a + K;
      var t2 = -K / 2;
      if (t1 >= 0 && t1 <= 1) {
        roots[n++] = t1;
      }
      if (t2 >= 0 && t2 <= 1) {
        roots[n++] = t2;
      }
    } else if (disc > 0) {
      var discSqrt = mathSqrt(disc);
      var Y1 = A * b + 1.5 * a * (-B + discSqrt);
      var Y2 = A * b + 1.5 * a * (-B - discSqrt);
      if (Y1 < 0) {
        Y1 = -mathPow(-Y1, ONE_THIRD);
      } else {
        Y1 = mathPow(Y1, ONE_THIRD);
      }
      if (Y2 < 0) {
        Y2 = -mathPow(-Y2, ONE_THIRD);
      } else {
        Y2 = mathPow(Y2, ONE_THIRD);
      }
      var t1 = (-b - (Y1 + Y2)) / (3 * a);
      if (t1 >= 0 && t1 <= 1) {
        roots[n++] = t1;
      }
    } else {
      var T = (2 * A * b - 3 * a * B) / (2 * mathSqrt(A * A * A));
      var theta = Math.acos(T) / 3;
      var ASqrt = mathSqrt(A);
      var tmp = Math.cos(theta);
      var t1 = (-b - 2 * ASqrt * tmp) / (3 * a);
      var t2 = (-b + ASqrt * (tmp + THREE_SQRT * Math.sin(theta))) / (3 * a);
      var t3 = (-b + ASqrt * (tmp - THREE_SQRT * Math.sin(theta))) / (3 * a);
      if (t1 >= 0 && t1 <= 1) {
        roots[n++] = t1;
      }
      if (t2 >= 0 && t2 <= 1) {
        roots[n++] = t2;
      }
      if (t3 >= 0 && t3 <= 1) {
        roots[n++] = t3;
      }
    }
  }
  return n;
}
var regexp = /cubic-bezier\(([0-9,\.e ]+)\)/;
function createCubicEasingFunc(cubicEasingStr) {
  var cubic = cubicEasingStr && regexp.exec(cubicEasingStr);
  if (cubic) {
    var points = cubic[1].split(",");
    var a_1 = +trim(points[0]);
    var b_1 = +trim(points[1]);
    var c_1 = +trim(points[2]);
    var d_1 = +trim(points[3]);
    if (isNaN(a_1 + b_1 + c_1 + d_1)) {
      return;
    }
    var roots_1 = [];
    return function(p) {
      return p <= 0 ? 0 : p >= 1 ? 1 : cubicRootAt(0, a_1, c_1, 1, p, roots_1) && cubicAt(0, b_1, d_1, 1, roots_1[0]);
    };
  }
}
var Clip = function() {
  function Clip2(opts) {
    this._inited = false;
    this._startTime = 0;
    this._pausedTime = 0;
    this._paused = false;
    this._life = opts.life || 1e3;
    this._delay = opts.delay || 0;
    this.loop = opts.loop || false;
    this.onframe = opts.onframe || noop;
    this.ondestroy = opts.ondestroy || noop;
    this.onrestart = opts.onrestart || noop;
    opts.easing && this.setEasing(opts.easing);
  }
  Clip2.prototype.step = function(globalTime, deltaTime) {
    if (!this._inited) {
      this._startTime = globalTime + this._delay;
      this._inited = true;
    }
    if (this._paused) {
      this._pausedTime += deltaTime;
      return;
    }
    var life = this._life;
    var elapsedTime = globalTime - this._startTime - this._pausedTime;
    var percent = elapsedTime / life;
    if (percent < 0) {
      percent = 0;
    }
    percent = Math.min(percent, 1);
    var easingFunc = this.easingFunc;
    var schedule = easingFunc ? easingFunc(percent) : percent;
    this.onframe(schedule);
    if (percent === 1) {
      if (this.loop) {
        var remainder = elapsedTime % life;
        this._startTime = globalTime - remainder;
        this._pausedTime = 0;
        this.onrestart();
      } else {
        return true;
      }
    }
    return false;
  };
  Clip2.prototype.pause = function() {
    this._paused = true;
  };
  Clip2.prototype.resume = function() {
    this._paused = false;
  };
  Clip2.prototype.setEasing = function(easing) {
    this.easing = easing;
    this.easingFunc = isFunction(easing) ? easing : easingFuncs[easing] || createCubicEasingFunc(easing);
  };
  return Clip2;
}();
var kCSSColorTable = {
  "transparent": [0, 0, 0, 0],
  "aliceblue": [240, 248, 255, 1],
  "antiquewhite": [250, 235, 215, 1],
  "aqua": [0, 255, 255, 1],
  "aquamarine": [127, 255, 212, 1],
  "azure": [240, 255, 255, 1],
  "beige": [245, 245, 220, 1],
  "bisque": [255, 228, 196, 1],
  "black": [0, 0, 0, 1],
  "blanchedalmond": [255, 235, 205, 1],
  "blue": [0, 0, 255, 1],
  "blueviolet": [138, 43, 226, 1],
  "brown": [165, 42, 42, 1],
  "burlywood": [222, 184, 135, 1],
  "cadetblue": [95, 158, 160, 1],
  "chartreuse": [127, 255, 0, 1],
  "chocolate": [210, 105, 30, 1],
  "coral": [255, 127, 80, 1],
  "cornflowerblue": [100, 149, 237, 1],
  "cornsilk": [255, 248, 220, 1],
  "crimson": [220, 20, 60, 1],
  "cyan": [0, 255, 255, 1],
  "darkblue": [0, 0, 139, 1],
  "darkcyan": [0, 139, 139, 1],
  "darkgoldenrod": [184, 134, 11, 1],
  "darkgray": [169, 169, 169, 1],
  "darkgreen": [0, 100, 0, 1],
  "darkgrey": [169, 169, 169, 1],
  "darkkhaki": [189, 183, 107, 1],
  "darkmagenta": [139, 0, 139, 1],
  "darkolivegreen": [85, 107, 47, 1],
  "darkorange": [255, 140, 0, 1],
  "darkorchid": [153, 50, 204, 1],
  "darkred": [139, 0, 0, 1],
  "darksalmon": [233, 150, 122, 1],
  "darkseagreen": [143, 188, 143, 1],
  "darkslateblue": [72, 61, 139, 1],
  "darkslategray": [47, 79, 79, 1],
  "darkslategrey": [47, 79, 79, 1],
  "darkturquoise": [0, 206, 209, 1],
  "darkviolet": [148, 0, 211, 1],
  "deeppink": [255, 20, 147, 1],
  "deepskyblue": [0, 191, 255, 1],
  "dimgray": [105, 105, 105, 1],
  "dimgrey": [105, 105, 105, 1],
  "dodgerblue": [30, 144, 255, 1],
  "firebrick": [178, 34, 34, 1],
  "floralwhite": [255, 250, 240, 1],
  "forestgreen": [34, 139, 34, 1],
  "fuchsia": [255, 0, 255, 1],
  "gainsboro": [220, 220, 220, 1],
  "ghostwhite": [248, 248, 255, 1],
  "gold": [255, 215, 0, 1],
  "goldenrod": [218, 165, 32, 1],
  "gray": [128, 128, 128, 1],
  "green": [0, 128, 0, 1],
  "greenyellow": [173, 255, 47, 1],
  "grey": [128, 128, 128, 1],
  "honeydew": [240, 255, 240, 1],
  "hotpink": [255, 105, 180, 1],
  "indianred": [205, 92, 92, 1],
  "indigo": [75, 0, 130, 1],
  "ivory": [255, 255, 240, 1],
  "khaki": [240, 230, 140, 1],
  "lavender": [230, 230, 250, 1],
  "lavenderblush": [255, 240, 245, 1],
  "lawngreen": [124, 252, 0, 1],
  "lemonchiffon": [255, 250, 205, 1],
  "lightblue": [173, 216, 230, 1],
  "lightcoral": [240, 128, 128, 1],
  "lightcyan": [224, 255, 255, 1],
  "lightgoldenrodyellow": [250, 250, 210, 1],
  "lightgray": [211, 211, 211, 1],
  "lightgreen": [144, 238, 144, 1],
  "lightgrey": [211, 211, 211, 1],
  "lightpink": [255, 182, 193, 1],
  "lightsalmon": [255, 160, 122, 1],
  "lightseagreen": [32, 178, 170, 1],
  "lightskyblue": [135, 206, 250, 1],
  "lightslategray": [119, 136, 153, 1],
  "lightslategrey": [119, 136, 153, 1],
  "lightsteelblue": [176, 196, 222, 1],
  "lightyellow": [255, 255, 224, 1],
  "lime": [0, 255, 0, 1],
  "limegreen": [50, 205, 50, 1],
  "linen": [250, 240, 230, 1],
  "magenta": [255, 0, 255, 1],
  "maroon": [128, 0, 0, 1],
  "mediumaquamarine": [102, 205, 170, 1],
  "mediumblue": [0, 0, 205, 1],
  "mediumorchid": [186, 85, 211, 1],
  "mediumpurple": [147, 112, 219, 1],
  "mediumseagreen": [60, 179, 113, 1],
  "mediumslateblue": [123, 104, 238, 1],
  "mediumspringgreen": [0, 250, 154, 1],
  "mediumturquoise": [72, 209, 204, 1],
  "mediumvioletred": [199, 21, 133, 1],
  "midnightblue": [25, 25, 112, 1],
  "mintcream": [245, 255, 250, 1],
  "mistyrose": [255, 228, 225, 1],
  "moccasin": [255, 228, 181, 1],
  "navajowhite": [255, 222, 173, 1],
  "navy": [0, 0, 128, 1],
  "oldlace": [253, 245, 230, 1],
  "olive": [128, 128, 0, 1],
  "olivedrab": [107, 142, 35, 1],
  "orange": [255, 165, 0, 1],
  "orangered": [255, 69, 0, 1],
  "orchid": [218, 112, 214, 1],
  "palegoldenrod": [238, 232, 170, 1],
  "palegreen": [152, 251, 152, 1],
  "paleturquoise": [175, 238, 238, 1],
  "palevioletred": [219, 112, 147, 1],
  "papayawhip": [255, 239, 213, 1],
  "peachpuff": [255, 218, 185, 1],
  "peru": [205, 133, 63, 1],
  "pink": [255, 192, 203, 1],
  "plum": [221, 160, 221, 1],
  "powderblue": [176, 224, 230, 1],
  "purple": [128, 0, 128, 1],
  "red": [255, 0, 0, 1],
  "rosybrown": [188, 143, 143, 1],
  "royalblue": [65, 105, 225, 1],
  "saddlebrown": [139, 69, 19, 1],
  "salmon": [250, 128, 114, 1],
  "sandybrown": [244, 164, 96, 1],
  "seagreen": [46, 139, 87, 1],
  "seashell": [255, 245, 238, 1],
  "sienna": [160, 82, 45, 1],
  "silver": [192, 192, 192, 1],
  "skyblue": [135, 206, 235, 1],
  "slateblue": [106, 90, 205, 1],
  "slategray": [112, 128, 144, 1],
  "slategrey": [112, 128, 144, 1],
  "snow": [255, 250, 250, 1],
  "springgreen": [0, 255, 127, 1],
  "steelblue": [70, 130, 180, 1],
  "tan": [210, 180, 140, 1],
  "teal": [0, 128, 128, 1],
  "thistle": [216, 191, 216, 1],
  "tomato": [255, 99, 71, 1],
  "turquoise": [64, 224, 208, 1],
  "violet": [238, 130, 238, 1],
  "wheat": [245, 222, 179, 1],
  "white": [255, 255, 255, 1],
  "whitesmoke": [245, 245, 245, 1],
  "yellow": [255, 255, 0, 1],
  "yellowgreen": [154, 205, 50, 1]
};
function clampCssByte(i) {
  i = Math.round(i);
  return i < 0 ? 0 : i > 255 ? 255 : i;
}
function clampCssFloat(f) {
  return f < 0 ? 0 : f > 1 ? 1 : f;
}
function parseCssInt(val) {
  var str = val;
  if (str.length && str.charAt(str.length - 1) === "%") {
    return clampCssByte(parseFloat(str) / 100 * 255);
  }
  return clampCssByte(parseInt(str, 10));
}
function parseCssFloat(val) {
  var str = val;
  if (str.length && str.charAt(str.length - 1) === "%") {
    return clampCssFloat(parseFloat(str) / 100);
  }
  return clampCssFloat(parseFloat(str));
}
function cssHueToRgb(m1, m2, h) {
  if (h < 0) {
    h += 1;
  } else if (h > 1) {
    h -= 1;
  }
  if (h * 6 < 1) {
    return m1 + (m2 - m1) * h * 6;
  }
  if (h * 2 < 1) {
    return m2;
  }
  if (h * 3 < 2) {
    return m1 + (m2 - m1) * (2 / 3 - h) * 6;
  }
  return m1;
}
function setRgba(out, r, g2, b, a) {
  out[0] = r;
  out[1] = g2;
  out[2] = b;
  out[3] = a;
  return out;
}
function copyRgba(out, a) {
  out[0] = a[0];
  out[1] = a[1];
  out[2] = a[2];
  out[3] = a[3];
  return out;
}
var colorCache = new LRU(20);
var lastRemovedArr = null;
function putToCache(colorStr, rgbaArr) {
  if (lastRemovedArr) {
    copyRgba(lastRemovedArr, rgbaArr);
  }
  lastRemovedArr = colorCache.put(colorStr, lastRemovedArr || rgbaArr.slice());
}
function parse(colorStr, rgbaArr) {
  if (!colorStr) {
    return;
  }
  rgbaArr = rgbaArr || [];
  var cached = colorCache.get(colorStr);
  if (cached) {
    return copyRgba(rgbaArr, cached);
  }
  colorStr = colorStr + "";
  var str = colorStr.replace(/ /g, "").toLowerCase();
  if (str in kCSSColorTable) {
    copyRgba(rgbaArr, kCSSColorTable[str]);
    putToCache(colorStr, rgbaArr);
    return rgbaArr;
  }
  var strLen = str.length;
  if (str.charAt(0) === "#") {
    if (strLen === 4 || strLen === 5) {
      var iv = parseInt(str.slice(1, 4), 16);
      if (!(iv >= 0 && iv <= 4095)) {
        setRgba(rgbaArr, 0, 0, 0, 1);
        return;
      }
      setRgba(rgbaArr, (iv & 3840) >> 4 | (iv & 3840) >> 8, iv & 240 | (iv & 240) >> 4, iv & 15 | (iv & 15) << 4, strLen === 5 ? parseInt(str.slice(4), 16) / 15 : 1);
      putToCache(colorStr, rgbaArr);
      return rgbaArr;
    } else if (strLen === 7 || strLen === 9) {
      var iv = parseInt(str.slice(1, 7), 16);
      if (!(iv >= 0 && iv <= 16777215)) {
        setRgba(rgbaArr, 0, 0, 0, 1);
        return;
      }
      setRgba(rgbaArr, (iv & 16711680) >> 16, (iv & 65280) >> 8, iv & 255, strLen === 9 ? parseInt(str.slice(7), 16) / 255 : 1);
      putToCache(colorStr, rgbaArr);
      return rgbaArr;
    }
    return;
  }
  var op = str.indexOf("(");
  var ep = str.indexOf(")");
  if (op !== -1 && ep + 1 === strLen) {
    var fname = str.substr(0, op);
    var params = str.substr(op + 1, ep - (op + 1)).split(",");
    var alpha = 1;
    switch (fname) {
      case "rgba":
        if (params.length !== 4) {
          return params.length === 3 ? setRgba(rgbaArr, +params[0], +params[1], +params[2], 1) : setRgba(rgbaArr, 0, 0, 0, 1);
        }
        alpha = parseCssFloat(params.pop());
      case "rgb":
        if (params.length >= 3) {
          setRgba(rgbaArr, parseCssInt(params[0]), parseCssInt(params[1]), parseCssInt(params[2]), params.length === 3 ? alpha : parseCssFloat(params[3]));
          putToCache(colorStr, rgbaArr);
          return rgbaArr;
        } else {
          setRgba(rgbaArr, 0, 0, 0, 1);
          return;
        }
      case "hsla":
        if (params.length !== 4) {
          setRgba(rgbaArr, 0, 0, 0, 1);
          return;
        }
        params[3] = parseCssFloat(params[3]);
        hsla2rgba(params, rgbaArr);
        putToCache(colorStr, rgbaArr);
        return rgbaArr;
      case "hsl":
        if (params.length !== 3) {
          setRgba(rgbaArr, 0, 0, 0, 1);
          return;
        }
        hsla2rgba(params, rgbaArr);
        putToCache(colorStr, rgbaArr);
        return rgbaArr;
      default:
        return;
    }
  }
  setRgba(rgbaArr, 0, 0, 0, 1);
  return;
}
function hsla2rgba(hsla, rgba) {
  var h = (parseFloat(hsla[0]) % 360 + 360) % 360 / 360;
  var s = parseCssFloat(hsla[1]);
  var l = parseCssFloat(hsla[2]);
  var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
  var m1 = l * 2 - m2;
  rgba = rgba || [];
  setRgba(rgba, clampCssByte(cssHueToRgb(m1, m2, h + 1 / 3) * 255), clampCssByte(cssHueToRgb(m1, m2, h) * 255), clampCssByte(cssHueToRgb(m1, m2, h - 1 / 3) * 255), 1);
  if (hsla.length === 4) {
    rgba[3] = hsla[3];
  }
  return rgba;
}
var Browser = /* @__PURE__ */ function() {
  function Browser2() {
    this.firefox = false;
    this.ie = false;
    this.edge = false;
    this.newEdge = false;
    this.weChat = false;
  }
  return Browser2;
}();
var Env = /* @__PURE__ */ function() {
  function Env2() {
    this.browser = new Browser();
    this.node = false;
    this.wxa = false;
    this.worker = false;
    this.svgSupported = false;
    this.touchEventsSupported = false;
    this.pointerEventsSupported = false;
    this.domSupported = false;
    this.transformSupported = false;
    this.transform3dSupported = false;
    this.hasGlobalWindow = typeof window !== "undefined";
  }
  return Env2;
}();
var env = new Env();
if (typeof wx === "object" && typeof wx.getSystemInfoSync === "function") {
  env.wxa = true;
  env.touchEventsSupported = true;
} else if (typeof document === "undefined" && typeof self !== "undefined") {
  env.worker = true;
} else if (!env.hasGlobalWindow || "Deno" in window) {
  env.node = true;
  env.svgSupported = true;
} else {
  detect(navigator.userAgent, env);
}
function detect(ua, env2) {
  var browser = env2.browser;
  var firefox = ua.match(/Firefox\/([\d.]+)/);
  var ie = ua.match(/MSIE\s([\d.]+)/) || ua.match(/Trident\/.+?rv:(([\d.]+))/);
  var edge = ua.match(/Edge?\/([\d.]+)/);
  var weChat = /micromessenger/i.test(ua);
  if (firefox) {
    browser.firefox = true;
    browser.version = firefox[1];
  }
  if (ie) {
    browser.ie = true;
    browser.version = ie[1];
  }
  if (edge) {
    browser.edge = true;
    browser.version = edge[1];
    browser.newEdge = +edge[1].split(".")[0] > 18;
  }
  if (weChat) {
    browser.weChat = true;
  }
  env2.svgSupported = typeof SVGRect !== "undefined";
  env2.touchEventsSupported = "ontouchstart" in window && !browser.ie && !browser.edge;
  env2.pointerEventsSupported = "onpointerdown" in window && (browser.edge || browser.ie && +browser.version >= 11);
  env2.domSupported = typeof document !== "undefined";
  var style = document.documentElement.style;
  env2.transform3dSupported = (browser.ie && "transition" in style || browser.edge || "WebKitCSSMatrix" in window && "m11" in new WebKitCSSMatrix() || "MozPerspective" in style) && !("OTransition" in style);
  env2.transformSupported = env2.transform3dSupported || browser.ie && +browser.version >= 9;
}
function isLinearGradient(val) {
  return val.type === "linear";
}
function isRadialGradient(val) {
  return val.type === "radial";
}
(function() {
  if (env.hasGlobalWindow && isFunction(window.btoa)) {
    return function(str) {
      return window.btoa(unescape(encodeURIComponent(str)));
    };
  }
  if (typeof Buffer !== "undefined") {
    return function(str) {
      return Buffer.from(str).toString("base64");
    };
  }
  return function(str) {
    return null;
  };
})();
var arraySlice = Array.prototype.slice;
function interpolateNumber(p02, p12, percent) {
  return (p12 - p02) * percent + p02;
}
function interpolate1DArray(out, p02, p12, percent) {
  var len = p02.length;
  for (var i = 0; i < len; i++) {
    out[i] = interpolateNumber(p02[i], p12[i], percent);
  }
  return out;
}
function interpolate2DArray(out, p02, p12, percent) {
  var len = p02.length;
  var len2 = len && p02[0].length;
  for (var i = 0; i < len; i++) {
    if (!out[i]) {
      out[i] = [];
    }
    for (var j = 0; j < len2; j++) {
      out[i][j] = interpolateNumber(p02[i][j], p12[i][j], percent);
    }
  }
  return out;
}
function add1DArray(out, p02, p12, sign2) {
  var len = p02.length;
  for (var i = 0; i < len; i++) {
    out[i] = p02[i] + p12[i] * sign2;
  }
  return out;
}
function add2DArray(out, p02, p12, sign2) {
  var len = p02.length;
  var len2 = len && p02[0].length;
  for (var i = 0; i < len; i++) {
    if (!out[i]) {
      out[i] = [];
    }
    for (var j = 0; j < len2; j++) {
      out[i][j] = p02[i][j] + p12[i][j] * sign2;
    }
  }
  return out;
}
function fillColorStops(val0, val1) {
  var len0 = val0.length;
  var len1 = val1.length;
  var shorterArr = len0 > len1 ? val1 : val0;
  var shorterLen = Math.min(len0, len1);
  var last = shorterArr[shorterLen - 1] || { color: [0, 0, 0, 0], offset: 0 };
  for (var i = shorterLen; i < Math.max(len0, len1); i++) {
    shorterArr.push({
      offset: last.offset,
      color: last.color.slice()
    });
  }
}
function fillArray(val0, val1, arrDim) {
  var arr0 = val0;
  var arr1 = val1;
  if (!arr0.push || !arr1.push) {
    return;
  }
  var arr0Len = arr0.length;
  var arr1Len = arr1.length;
  if (arr0Len !== arr1Len) {
    var isPreviousLarger = arr0Len > arr1Len;
    if (isPreviousLarger) {
      arr0.length = arr1Len;
    } else {
      for (var i = arr0Len; i < arr1Len; i++) {
        arr0.push(arrDim === 1 ? arr1[i] : arraySlice.call(arr1[i]));
      }
    }
  }
  var len2 = arr0[0] && arr0[0].length;
  for (var i = 0; i < arr0.length; i++) {
    if (arrDim === 1) {
      if (isNaN(arr0[i])) {
        arr0[i] = arr1[i];
      }
    } else {
      for (var j = 0; j < len2; j++) {
        if (isNaN(arr0[i][j])) {
          arr0[i][j] = arr1[i][j];
        }
      }
    }
  }
}
function cloneValue(value) {
  if (isArrayLike(value)) {
    var len = value.length;
    if (isArrayLike(value[0])) {
      var ret2 = [];
      for (var i = 0; i < len; i++) {
        ret2.push(arraySlice.call(value[i]));
      }
      return ret2;
    }
    return arraySlice.call(value);
  }
  return value;
}
function rgba2String(rgba) {
  rgba[0] = Math.floor(rgba[0]) || 0;
  rgba[1] = Math.floor(rgba[1]) || 0;
  rgba[2] = Math.floor(rgba[2]) || 0;
  rgba[3] = rgba[3] == null ? 1 : rgba[3];
  return "rgba(" + rgba.join(",") + ")";
}
function guessArrayDim(value) {
  return isArrayLike(value && value[0]) ? 2 : 1;
}
var VALUE_TYPE_NUMBER = 0;
var VALUE_TYPE_1D_ARRAY = 1;
var VALUE_TYPE_2D_ARRAY = 2;
var VALUE_TYPE_COLOR = 3;
var VALUE_TYPE_LINEAR_GRADIENT = 4;
var VALUE_TYPE_RADIAL_GRADIENT = 5;
var VALUE_TYPE_UNKOWN = 6;
function isGradientValueType(valType) {
  return valType === VALUE_TYPE_LINEAR_GRADIENT || valType === VALUE_TYPE_RADIAL_GRADIENT;
}
function isArrayValueType(valType) {
  return valType === VALUE_TYPE_1D_ARRAY || valType === VALUE_TYPE_2D_ARRAY;
}
var tmpRgba = [0, 0, 0, 0];
var Track = function() {
  function Track2(propName) {
    this.keyframes = [];
    this.discrete = false;
    this._invalid = false;
    this._needsSort = false;
    this._lastFr = 0;
    this._lastFrP = 0;
    this.propName = propName;
  }
  Track2.prototype.isFinished = function() {
    return this._finished;
  };
  Track2.prototype.setFinished = function() {
    this._finished = true;
    if (this._additiveTrack) {
      this._additiveTrack.setFinished();
    }
  };
  Track2.prototype.needsAnimate = function() {
    return this.keyframes.length >= 1;
  };
  Track2.prototype.getAdditiveTrack = function() {
    return this._additiveTrack;
  };
  Track2.prototype.addKeyframe = function(time, rawValue, easing) {
    this._needsSort = true;
    var keyframes = this.keyframes;
    var len = keyframes.length;
    var discrete = false;
    var valType = VALUE_TYPE_UNKOWN;
    var value = rawValue;
    if (isArrayLike(rawValue)) {
      var arrayDim = guessArrayDim(rawValue);
      valType = arrayDim;
      if (arrayDim === 1 && !isNumber(rawValue[0]) || arrayDim === 2 && !isNumber(rawValue[0][0])) {
        discrete = true;
      }
    } else {
      if (isNumber(rawValue) && !eqNaN(rawValue)) {
        valType = VALUE_TYPE_NUMBER;
      } else if (isString(rawValue)) {
        if (!isNaN(+rawValue)) {
          valType = VALUE_TYPE_NUMBER;
        } else {
          var colorArray = parse(rawValue);
          if (colorArray) {
            value = colorArray;
            valType = VALUE_TYPE_COLOR;
          }
        }
      } else if (isGradientObject(rawValue)) {
        var parsedGradient = extend({}, value);
        parsedGradient.colorStops = map(rawValue.colorStops, function(colorStop) {
          return {
            offset: colorStop.offset,
            color: parse(colorStop.color)
          };
        });
        if (isLinearGradient(rawValue)) {
          valType = VALUE_TYPE_LINEAR_GRADIENT;
        } else if (isRadialGradient(rawValue)) {
          valType = VALUE_TYPE_RADIAL_GRADIENT;
        }
        value = parsedGradient;
      }
    }
    if (len === 0) {
      this.valType = valType;
    } else if (valType !== this.valType || valType === VALUE_TYPE_UNKOWN) {
      discrete = true;
    }
    this.discrete = this.discrete || discrete;
    var kf = {
      time,
      value,
      rawValue,
      percent: 0
    };
    if (easing) {
      kf.easing = easing;
      kf.easingFunc = isFunction(easing) ? easing : easingFuncs[easing] || createCubicEasingFunc(easing);
    }
    keyframes.push(kf);
    return kf;
  };
  Track2.prototype.prepare = function(maxTime, additiveTrack) {
    var kfs = this.keyframes;
    if (this._needsSort) {
      kfs.sort(function(a, b) {
        return a.time - b.time;
      });
    }
    var valType = this.valType;
    var kfsLen = kfs.length;
    var lastKf = kfs[kfsLen - 1];
    var isDiscrete = this.discrete;
    var isArr = isArrayValueType(valType);
    var isGradient = isGradientValueType(valType);
    for (var i = 0; i < kfsLen; i++) {
      var kf = kfs[i];
      var value = kf.value;
      var lastValue = lastKf.value;
      kf.percent = kf.time / maxTime;
      if (!isDiscrete) {
        if (isArr && i !== kfsLen - 1) {
          fillArray(value, lastValue, valType);
        } else if (isGradient) {
          fillColorStops(value.colorStops, lastValue.colorStops);
        }
      }
    }
    if (!isDiscrete && valType !== VALUE_TYPE_RADIAL_GRADIENT && additiveTrack && this.needsAnimate() && additiveTrack.needsAnimate() && valType === additiveTrack.valType && !additiveTrack._finished) {
      this._additiveTrack = additiveTrack;
      var startValue = kfs[0].value;
      for (var i = 0; i < kfsLen; i++) {
        if (valType === VALUE_TYPE_NUMBER) {
          kfs[i].additiveValue = kfs[i].value - startValue;
        } else if (valType === VALUE_TYPE_COLOR) {
          kfs[i].additiveValue = add1DArray([], kfs[i].value, startValue, -1);
        } else if (isArrayValueType(valType)) {
          kfs[i].additiveValue = valType === VALUE_TYPE_1D_ARRAY ? add1DArray([], kfs[i].value, startValue, -1) : add2DArray([], kfs[i].value, startValue, -1);
        }
      }
    }
  };
  Track2.prototype.step = function(target, percent) {
    if (this._finished) {
      return;
    }
    if (this._additiveTrack && this._additiveTrack._finished) {
      this._additiveTrack = null;
    }
    var isAdditive = this._additiveTrack != null;
    var valueKey = isAdditive ? "additiveValue" : "value";
    var valType = this.valType;
    var keyframes = this.keyframes;
    var kfsNum = keyframes.length;
    var propName = this.propName;
    var isValueColor = valType === VALUE_TYPE_COLOR;
    var frameIdx;
    var lastFrame = this._lastFr;
    var mathMin2 = Math.min;
    var frame;
    var nextFrame;
    if (kfsNum === 1) {
      frame = nextFrame = keyframes[0];
    } else {
      if (percent < 0) {
        frameIdx = 0;
      } else if (percent < this._lastFrP) {
        var start = mathMin2(lastFrame + 1, kfsNum - 1);
        for (frameIdx = start; frameIdx >= 0; frameIdx--) {
          if (keyframes[frameIdx].percent <= percent) {
            break;
          }
        }
        frameIdx = mathMin2(frameIdx, kfsNum - 2);
      } else {
        for (frameIdx = lastFrame; frameIdx < kfsNum; frameIdx++) {
          if (keyframes[frameIdx].percent > percent) {
            break;
          }
        }
        frameIdx = mathMin2(frameIdx - 1, kfsNum - 2);
      }
      nextFrame = keyframes[frameIdx + 1];
      frame = keyframes[frameIdx];
    }
    if (!(frame && nextFrame)) {
      return;
    }
    this._lastFr = frameIdx;
    this._lastFrP = percent;
    var interval = nextFrame.percent - frame.percent;
    var w = interval === 0 ? 1 : mathMin2((percent - frame.percent) / interval, 1);
    if (nextFrame.easingFunc) {
      w = nextFrame.easingFunc(w);
    }
    var targetArr = isAdditive ? this._additiveValue : isValueColor ? tmpRgba : target[propName];
    if ((isArrayValueType(valType) || isValueColor) && !targetArr) {
      targetArr = this._additiveValue = [];
    }
    if (this.discrete) {
      target[propName] = w < 1 ? frame.rawValue : nextFrame.rawValue;
    } else if (isArrayValueType(valType)) {
      valType === VALUE_TYPE_1D_ARRAY ? interpolate1DArray(targetArr, frame[valueKey], nextFrame[valueKey], w) : interpolate2DArray(targetArr, frame[valueKey], nextFrame[valueKey], w);
    } else if (isGradientValueType(valType)) {
      var val = frame[valueKey];
      var nextVal_1 = nextFrame[valueKey];
      var isLinearGradient_1 = valType === VALUE_TYPE_LINEAR_GRADIENT;
      target[propName] = {
        type: isLinearGradient_1 ? "linear" : "radial",
        x: interpolateNumber(val.x, nextVal_1.x, w),
        y: interpolateNumber(val.y, nextVal_1.y, w),
        colorStops: map(val.colorStops, function(colorStop, idx) {
          var nextColorStop = nextVal_1.colorStops[idx];
          return {
            offset: interpolateNumber(colorStop.offset, nextColorStop.offset, w),
            color: rgba2String(interpolate1DArray([], colorStop.color, nextColorStop.color, w))
          };
        }),
        global: nextVal_1.global
      };
      if (isLinearGradient_1) {
        target[propName].x2 = interpolateNumber(val.x2, nextVal_1.x2, w);
        target[propName].y2 = interpolateNumber(val.y2, nextVal_1.y2, w);
      } else {
        target[propName].r = interpolateNumber(val.r, nextVal_1.r, w);
      }
    } else if (isValueColor) {
      interpolate1DArray(targetArr, frame[valueKey], nextFrame[valueKey], w);
      if (!isAdditive) {
        target[propName] = rgba2String(targetArr);
      }
    } else {
      var value = interpolateNumber(frame[valueKey], nextFrame[valueKey], w);
      if (isAdditive) {
        this._additiveValue = value;
      } else {
        target[propName] = value;
      }
    }
    if (isAdditive) {
      this._addToTarget(target);
    }
  };
  Track2.prototype._addToTarget = function(target) {
    var valType = this.valType;
    var propName = this.propName;
    var additiveValue = this._additiveValue;
    if (valType === VALUE_TYPE_NUMBER) {
      target[propName] = target[propName] + additiveValue;
    } else if (valType === VALUE_TYPE_COLOR) {
      parse(target[propName], tmpRgba);
      add1DArray(tmpRgba, tmpRgba, additiveValue, 1);
      target[propName] = rgba2String(tmpRgba);
    } else if (valType === VALUE_TYPE_1D_ARRAY) {
      add1DArray(target[propName], target[propName], additiveValue, 1);
    } else if (valType === VALUE_TYPE_2D_ARRAY) {
      add2DArray(target[propName], target[propName], additiveValue, 1);
    }
  };
  return Track2;
}();
var Animator = function() {
  function Animator2(target, loop, allowDiscreteAnimation, additiveTo) {
    this._tracks = {};
    this._trackKeys = [];
    this._maxTime = 0;
    this._started = 0;
    this._clip = null;
    this._target = target;
    this._loop = loop;
    if (loop && additiveTo) {
      logError("Can' use additive animation on looped animation.");
      return;
    }
    this._additiveAnimators = additiveTo;
    this._allowDiscrete = allowDiscreteAnimation;
  }
  Animator2.prototype.getMaxTime = function() {
    return this._maxTime;
  };
  Animator2.prototype.getDelay = function() {
    return this._delay;
  };
  Animator2.prototype.getLoop = function() {
    return this._loop;
  };
  Animator2.prototype.getTarget = function() {
    return this._target;
  };
  Animator2.prototype.changeTarget = function(target) {
    this._target = target;
  };
  Animator2.prototype.when = function(time, props, easing) {
    return this.whenWithKeys(time, props, keys(props), easing);
  };
  Animator2.prototype.whenWithKeys = function(time, props, propNames, easing) {
    var tracks = this._tracks;
    for (var i = 0; i < propNames.length; i++) {
      var propName = propNames[i];
      var track = tracks[propName];
      if (!track) {
        track = tracks[propName] = new Track(propName);
        var initialValue = void 0;
        var additiveTrack = this._getAdditiveTrack(propName);
        if (additiveTrack) {
          var addtiveTrackKfs = additiveTrack.keyframes;
          var lastFinalKf = addtiveTrackKfs[addtiveTrackKfs.length - 1];
          initialValue = lastFinalKf && lastFinalKf.value;
          if (additiveTrack.valType === VALUE_TYPE_COLOR && initialValue) {
            initialValue = rgba2String(initialValue);
          }
        } else {
          initialValue = this._target[propName];
        }
        if (initialValue == null) {
          continue;
        }
        if (time > 0) {
          track.addKeyframe(0, cloneValue(initialValue), easing);
        }
        this._trackKeys.push(propName);
      }
      track.addKeyframe(time, cloneValue(props[propName]), easing);
    }
    this._maxTime = Math.max(this._maxTime, time);
    return this;
  };
  Animator2.prototype.pause = function() {
    this._clip.pause();
    this._paused = true;
  };
  Animator2.prototype.resume = function() {
    this._clip.resume();
    this._paused = false;
  };
  Animator2.prototype.isPaused = function() {
    return !!this._paused;
  };
  Animator2.prototype.duration = function(duration) {
    this._maxTime = duration;
    this._force = true;
    return this;
  };
  Animator2.prototype._doneCallback = function() {
    this._setTracksFinished();
    this._clip = null;
    var doneList = this._doneCbs;
    if (doneList) {
      var len = doneList.length;
      for (var i = 0; i < len; i++) {
        doneList[i].call(this);
      }
    }
  };
  Animator2.prototype._abortedCallback = function() {
    this._setTracksFinished();
    var animation = this.animation;
    var abortedList = this._abortedCbs;
    if (animation) {
      animation.removeClip(this._clip);
    }
    this._clip = null;
    if (abortedList) {
      for (var i = 0; i < abortedList.length; i++) {
        abortedList[i].call(this);
      }
    }
  };
  Animator2.prototype._setTracksFinished = function() {
    var tracks = this._tracks;
    var tracksKeys = this._trackKeys;
    for (var i = 0; i < tracksKeys.length; i++) {
      tracks[tracksKeys[i]].setFinished();
    }
  };
  Animator2.prototype._getAdditiveTrack = function(trackName) {
    var additiveTrack;
    var additiveAnimators = this._additiveAnimators;
    if (additiveAnimators) {
      for (var i = 0; i < additiveAnimators.length; i++) {
        var track = additiveAnimators[i].getTrack(trackName);
        if (track) {
          additiveTrack = track;
        }
      }
    }
    return additiveTrack;
  };
  Animator2.prototype.start = function(easing) {
    if (this._started > 0) {
      return;
    }
    this._started = 1;
    var self2 = this;
    var tracks = [];
    var maxTime = this._maxTime || 0;
    for (var i = 0; i < this._trackKeys.length; i++) {
      var propName = this._trackKeys[i];
      var track = this._tracks[propName];
      var additiveTrack = this._getAdditiveTrack(propName);
      var kfs = track.keyframes;
      var kfsNum = kfs.length;
      track.prepare(maxTime, additiveTrack);
      if (track.needsAnimate()) {
        if (!this._allowDiscrete && track.discrete) {
          var lastKf = kfs[kfsNum - 1];
          if (lastKf) {
            self2._target[track.propName] = lastKf.rawValue;
          }
          track.setFinished();
        } else {
          tracks.push(track);
        }
      }
    }
    if (tracks.length || this._force) {
      var clip = new Clip({
        life: maxTime,
        loop: this._loop,
        delay: this._delay || 0,
        onframe: function(percent) {
          self2._started = 2;
          var additiveAnimators = self2._additiveAnimators;
          if (additiveAnimators) {
            var stillHasAdditiveAnimator = false;
            for (var i2 = 0; i2 < additiveAnimators.length; i2++) {
              if (additiveAnimators[i2]._clip) {
                stillHasAdditiveAnimator = true;
                break;
              }
            }
            if (!stillHasAdditiveAnimator) {
              self2._additiveAnimators = null;
            }
          }
          for (var i2 = 0; i2 < tracks.length; i2++) {
            tracks[i2].step(self2._target, percent);
          }
          var onframeList = self2._onframeCbs;
          if (onframeList) {
            for (var i2 = 0; i2 < onframeList.length; i2++) {
              onframeList[i2](self2._target, percent);
            }
          }
        },
        ondestroy: function() {
          self2._doneCallback();
        }
      });
      this._clip = clip;
      if (this.animation) {
        this.animation.addClip(clip);
      }
      if (easing) {
        clip.setEasing(easing);
      }
    } else {
      this._doneCallback();
    }
    return this;
  };
  Animator2.prototype.stop = function(forwardToLast) {
    if (!this._clip) {
      return;
    }
    var clip = this._clip;
    if (forwardToLast) {
      clip.onframe(1);
    }
    this._abortedCallback();
  };
  Animator2.prototype.delay = function(time) {
    this._delay = time;
    return this;
  };
  Animator2.prototype.during = function(cb) {
    if (cb) {
      if (!this._onframeCbs) {
        this._onframeCbs = [];
      }
      this._onframeCbs.push(cb);
    }
    return this;
  };
  Animator2.prototype.done = function(cb) {
    if (cb) {
      if (!this._doneCbs) {
        this._doneCbs = [];
      }
      this._doneCbs.push(cb);
    }
    return this;
  };
  Animator2.prototype.aborted = function(cb) {
    if (cb) {
      if (!this._abortedCbs) {
        this._abortedCbs = [];
      }
      this._abortedCbs.push(cb);
    }
    return this;
  };
  Animator2.prototype.getClip = function() {
    return this._clip;
  };
  Animator2.prototype.getTrack = function(propName) {
    return this._tracks[propName];
  };
  Animator2.prototype.getTracks = function() {
    var _this = this;
    return map(this._trackKeys, function(key) {
      return _this._tracks[key];
    });
  };
  Animator2.prototype.stopTracks = function(propNames, forwardToLast) {
    if (!propNames.length || !this._clip) {
      return true;
    }
    var tracks = this._tracks;
    var tracksKeys = this._trackKeys;
    for (var i = 0; i < propNames.length; i++) {
      var track = tracks[propNames[i]];
      if (track && !track.isFinished()) {
        if (forwardToLast) {
          track.step(this._target, 1);
        } else if (this._started === 1) {
          track.step(this._target, 0);
        }
        track.setFinished();
      }
    }
    var allAborted = true;
    for (var i = 0; i < tracksKeys.length; i++) {
      if (!tracks[tracksKeys[i]].isFinished()) {
        allAborted = false;
        break;
      }
    }
    if (allAborted) {
      this._abortedCallback();
    }
    return allAborted;
  };
  Animator2.prototype.saveTo = function(target, trackKeys, firstOrLast) {
    if (!target) {
      return;
    }
    trackKeys = trackKeys || this._trackKeys;
    for (var i = 0; i < trackKeys.length; i++) {
      var propName = trackKeys[i];
      var track = this._tracks[propName];
      if (!track || track.isFinished()) {
        continue;
      }
      var kfs = track.keyframes;
      var kf = kfs[firstOrLast ? 0 : kfs.length - 1];
      if (kf) {
        target[propName] = cloneValue(kf.rawValue);
      }
    }
  };
  Animator2.prototype.__changeFinalValue = function(finalProps, trackKeys) {
    trackKeys = trackKeys || keys(finalProps);
    for (var i = 0; i < trackKeys.length; i++) {
      var propName = trackKeys[i];
      var track = this._tracks[propName];
      if (!track) {
        continue;
      }
      var kfs = track.keyframes;
      if (kfs.length > 1) {
        var lastKf = kfs.pop();
        track.addKeyframe(lastKf.time, finalProps[propName]);
        track.prepare(this._maxTime, track.getAdditiveTrack());
      }
    }
  };
  return Animator2;
}();
var animatableMixin = {
  _animators: null,
  getAnimators: function() {
    this._animators = this._animators || [];
    return this._animators;
  },
  animate: function(path, opts) {
    this._animators = this._animators || [];
    var el = this;
    var target;
    if (path) {
      var pathSplitted = path.split(".");
      var prop = el;
      for (var i = 0, l = pathSplitted.length; i < l; i++) {
        if (!prop) {
          continue;
        }
        prop = prop[pathSplitted[i]];
      }
      if (prop) {
        target = prop;
      }
    } else {
      target = el;
    }
    if (target == null) {
      throw new Error("Target " + path + " not exists");
    }
    var animators = this._animators;
    var animator = new Animator(target, opts);
    var self2 = this;
    animator.during(function() {
      if (self2.__zr) {
        self2.__zr.refresh();
      }
    }).done(function() {
      var idx = animators.indexOf(animator);
      if (idx >= 0) {
        animators.splice(idx, 1);
      }
    });
    animators.push(animator);
    if (this.__zr) {
      this.__zr.animation.addAnimator(animator);
    }
    return animator;
  },
  stopAnimation: function(forwardToLast) {
    this._animators = this._animators || [];
    var animators = this._animators;
    var len = animators.length;
    for (var i = 0; i < len; i++) {
      animators[i].stop(forwardToLast);
    }
    animators.length = 0;
    return this;
  },
  addAnimatorsToZr: function(zr) {
    if (this._animators) {
      for (var i = 0; i < this._animators.length; i++) {
        zr.animation.addAnimator(this._animators[i]);
      }
    }
  },
  removeAnimatorsFromZr: function(zr) {
    if (this._animators) {
      for (var i = 0; i < this._animators.length; i++) {
        zr.animation.removeAnimator(this._animators[i]);
      }
    }
  }
};
const utilShaderCode = "\n@export clay.util.rand\nhighp float rand(vec2 uv) {\n const highp float a = 12.9898, b = 78.233, c = 43758.5453;\n highp float dt = dot(uv.xy, vec2(a,b)), sn = mod(dt, 3.141592653589793);\n return fract(sin(sn) * c);\n}\n@end\n@export clay.util.calculate_attenuation\nuniform float attenuationFactor : 5.0;\nfloat lightAttenuation(float dist, float range)\n{\n float attenuation = 1.0;\n attenuation = dist*dist/(range*range+1.0);\n float att_s = attenuationFactor;\n attenuation = 1.0/(attenuation*att_s+1.0);\n att_s = 1.0/(att_s+1.0);\n attenuation = attenuation - att_s;\n attenuation /= 1.0 - att_s;\n return clamp(attenuation, 0.0, 1.0);\n}\n@end\n@export clay.util.edge_factor\n#ifdef SUPPORT_STANDARD_DERIVATIVES\nfloat edgeFactor(float width)\n{\n vec3 d = fwidth(v_Barycentric);\n vec3 a3 = smoothstep(vec3(0.0), d * width, v_Barycentric);\n return min(min(a3.x, a3.y), a3.z);\n}\n#else\nfloat edgeFactor(float width)\n{\n return 1.0;\n}\n#endif\n@end\n@export clay.util.encode_float\nvec4 encodeFloat(const in float depth)\n{\n const vec4 bitShifts = vec4(256.0*256.0*256.0, 256.0*256.0, 256.0, 1.0);\n const vec4 bit_mask = vec4(0.0, 1.0/256.0, 1.0/256.0, 1.0/256.0);\n vec4 res = fract(depth * bitShifts);\n res -= res.xxyz * bit_mask;\n return res;\n}\n@end\n@export clay.util.decode_float\nfloat decodeFloat(const in vec4 color)\n{\n const vec4 bitShifts = vec4(1.0/(256.0*256.0*256.0), 1.0/(256.0*256.0), 1.0/256.0, 1.0);\n return dot(color, bitShifts);\n}\n@end\n@export clay.util.float\n@import clay.util.encode_float\n@import clay.util.decode_float\n@end\n@export clay.util.rgbm_decode\nvec3 RGBMDecode(vec4 rgbm, float range) {\n return range * rgbm.rgb * rgbm.a;\n}\n@end\n@export clay.util.rgbm_encode\nvec4 RGBMEncode(vec3 color, float range) {\n if (dot(color, color) == 0.0) {\n return vec4(0.0);\n }\n vec4 rgbm;\n color /= range;\n rgbm.a = clamp(max(max(color.r, color.g), max(color.b, 1e-6)), 0.0, 1.0);\n rgbm.a = ceil(rgbm.a * 255.0) / 255.0;\n rgbm.rgb = color / rgbm.a;\n return rgbm;\n}\n@end\n@export clay.util.rgbm\n@import clay.util.rgbm_decode\n@import clay.util.rgbm_encode\nvec4 decodeHDR(vec4 color)\n{\n#if defined(RGBM_DECODE) || defined(RGBM)\n return vec4(RGBMDecode(color, 8.12), 1.0);\n#else\n return color;\n#endif\n}\nvec4 encodeHDR(vec4 color)\n{\n#if defined(RGBM_ENCODE) || defined(RGBM)\n return RGBMEncode(color.xyz, 8.12);\n#else\n return color;\n#endif\n}\n@end\n@export clay.util.srgb\nvec4 sRGBToLinear(in vec4 value) {\n return vec4(mix(pow(value.rgb * 0.9478672986 + vec3(0.0521327014), vec3(2.4)), value.rgb * 0.0773993808, vec3(lessThanEqual(value.rgb, vec3(0.04045)))), value.w);\n}\nvec4 linearTosRGB(in vec4 value) {\n return vec4(mix(pow(value.rgb, vec3(0.41666)) * 1.055 - vec3(0.055), value.rgb * 12.92, vec3(lessThanEqual(value.rgb, vec3(0.0031308)))), value.w);\n}\n@end\n@export clay.chunk.skinning_header\n#ifdef SKINNING\nattribute vec3 weight : WEIGHT;\nattribute vec4 joint : JOINT;\n#ifdef USE_SKIN_MATRICES_TEXTURE\nuniform sampler2D skinMatricesTexture : ignore;\nuniform float skinMatricesTextureSize: ignore;\nmat4 getSkinMatrix(sampler2D tex, float idx) {\n float j = idx * 4.0;\n float x = mod(j, skinMatricesTextureSize);\n float y = floor(j / skinMatricesTextureSize) + 0.5;\n vec2 scale = vec2(skinMatricesTextureSize);\n return mat4(\n texture2D(tex, vec2(x + 0.5, y) / scale),\n texture2D(tex, vec2(x + 1.5, y) / scale),\n texture2D(tex, vec2(x + 2.5, y) / scale),\n texture2D(tex, vec2(x + 3.5, y) / scale)\n );\n}\nmat4 getSkinMatrix(float idx) {\n return getSkinMatrix(skinMatricesTexture, idx);\n}\n#else\nuniform mat4 skinMatrix[JOINT_COUNT] : SKIN_MATRIX;\nmat4 getSkinMatrix(float idx) {\n return skinMatrix[int(idx)];\n}\n#endif\n#endif\n@end\n@export clay.chunk.skin_matrix\nmat4 skinMatrixWS = getSkinMatrix(joint.x) * weight.x;\nif (weight.y > 1e-4)\n{\n skinMatrixWS += getSkinMatrix(joint.y) * weight.y;\n}\nif (weight.z > 1e-4)\n{\n skinMatrixWS += getSkinMatrix(joint.z) * weight.z;\n}\nfloat weightW = 1.0-weight.x-weight.y-weight.z;\nif (weightW > 1e-4)\n{\n skinMa
const commonGLSL = "\n@export ecgl.common.transformUniforms\nuniform mat4 worldViewProjection : WORLDVIEWPROJECTION;\nuniform mat4 worldInverseTranspose : WORLDINVERSETRANSPOSE;\nuniform mat4 world : WORLD;\n@end\n\n@export ecgl.common.attributes\nattribute vec3 position : POSITION;\nattribute vec2 texcoord : TEXCOORD_0;\nattribute vec3 normal : NORMAL;\n@end\n\n@export ecgl.common.uv.header\nuniform vec2 uvRepeat : [1.0, 1.0];\nuniform vec2 uvOffset : [0.0, 0.0];\nuniform vec2 detailUvRepeat : [1.0, 1.0];\nuniform vec2 detailUvOffset : [0.0, 0.0];\n\nvarying vec2 v_Texcoord;\nvarying vec2 v_DetailTexcoord;\n@end\n\n@export ecgl.common.uv.main\nv_Texcoord = texcoord * uvRepeat + uvOffset;\nv_DetailTexcoord = texcoord * detailUvRepeat + detailUvOffset;\n@end\n\n@export ecgl.common.uv.fragmentHeader\nvarying vec2 v_Texcoord;\nvarying vec2 v_DetailTexcoord;\n@end\n\n\n@export ecgl.common.albedo.main\n\n vec4 albedoTexel = vec4(1.0);\n#ifdef DIFFUSEMAP_ENABLED\n albedoTexel = texture2D(diffuseMap, v_Texcoord);\n #ifdef SRGB_DECODE\n albedoTexel = sRGBToLinear(albedoTexel);\n #endif\n#endif\n\n#ifdef DETAILMAP_ENABLED\n vec4 detailTexel = texture2D(detailMap, v_DetailTexcoord);\n #ifdef SRGB_DECODE\n detailTexel = sRGBToLinear(detailTexel);\n #endif\n albedoTexel.rgb = mix(albedoTexel.rgb, detailTexel.rgb, detailTexel.a);\n albedoTexel.a = detailTexel.a + (1.0 - detailTexel.a) * albedoTexel.a;\n#endif\n\n@end\n\n@export ecgl.common.wireframe.vertexHeader\n\n#ifdef WIREFRAME_QUAD\nattribute vec4 barycentric;\nvarying vec4 v_Barycentric;\n#elif defined(WIREFRAME_TRIANGLE)\nattribute vec3 barycentric;\nvarying vec3 v_Barycentric;\n#endif\n\n@end\n\n@export ecgl.common.wireframe.vertexMain\n\n#if defined(WIREFRAME_QUAD) || defined(WIREFRAME_TRIANGLE)\n v_Barycentric = barycentric;\n#endif\n\n@end\n\n\n@export ecgl.common.wireframe.fragmentHeader\n\nuniform float wireframeLineWidth : 1;\nuniform vec4 wireframeLineColor: [0, 0, 0, 0.5];\n\n#ifdef WIREFRAME_QUAD\nvarying vec4 v_Barycentric;\nfloat edgeFactor () {\n vec4 d = fwidth(v_Barycentric);\n vec4 a4 = smoothstep(vec4(0.0), d * wireframeLineWidth, v_Barycentric);\n return min(min(min(a4.x, a4.y), a4.z), a4.w);\n}\n#elif defined(WIREFRAME_TRIANGLE)\nvarying vec3 v_Barycentric;\nfloat edgeFactor () {\n vec3 d = fwidth(v_Barycentric);\n vec3 a3 = smoothstep(vec3(0.0), d * wireframeLineWidth, v_Barycentric);\n return min(min(a3.x, a3.y), a3.z);\n}\n#endif\n\n@end\n\n\n@export ecgl.common.wireframe.fragmentMain\n\n#if defined(WIREFRAME_QUAD) || defined(WIREFRAME_TRIANGLE)\n if (wireframeLineWidth > 0.) {\n vec4 lineColor = wireframeLineColor;\n#ifdef SRGB_DECODE\n lineColor = sRGBToLinear(lineColor);\n#endif\n\n gl_FragColor.rgb = mix(gl_FragColor.rgb, lineColor.rgb, (1.0 - edgeFactor()) * lineColor.a);\n }\n#endif\n@end\n\n\n\n\n@export ecgl.common.bumpMap.header\n\n#ifdef BUMPMAP_ENABLED\nuniform sampler2D bumpMap;\nuniform float bumpScale : 1.0;\n\n\nvec3 bumpNormal(vec3 surfPos, vec3 surfNormal, vec3 baseNormal)\n{\n vec2 dSTdx = dFdx(v_Texcoord);\n vec2 dSTdy = dFdy(v_Texcoord);\n\n float Hll = bumpScale * texture2D(bumpMap, v_Texcoord).x;\n float dHx = bumpScale * texture2D(bumpMap, v_Texcoord + dSTdx).x - Hll;\n float dHy = bumpScale * texture2D(bumpMap, v_Texcoord + dSTdy).x - Hll;\n\n vec3 vSigmaX = dFdx(surfPos);\n vec3 vSigmaY = dFdy(surfPos);\n vec3 vN = surfNormal;\n\n vec3 R1 = cross(vSigmaY, vN);\n vec3 R2 = cross(vN, vSigmaX);\n\n float fDet = dot(vSigmaX, R1);\n\n vec3 vGrad = sign(fDet) * (dHx * R1 + dHy * R2);\n return normalize(abs(fDet) * baseNormal - vGrad);\n\n}\n#endif\n\n@end\n\n@export ecgl.common.normalMap.vertexHeader\n\n#ifdef NORMALMAP_ENABLED\nattribute vec4 tangent : TANGENT;\nvarying vec3 v_Tangent;\nvarying vec3 v_Bitangent;\n#endif\n\n@end\n\n@export ecgl.common.normalMap.vertexMain\n\n#ifdef NORMALMAP_ENABLED\n if (dot(tangent, tangent) > 0.0) {\n v_Tangent = normalize((worldInverseTranspose * vec4(tangent.xyz, 0.0)).xyz);\n v_Bitangent = normalize(cross(v_Normal, v_Tangent) * tangent.w);\n }\n#endif\n\n@end\n\n\n@export ecgl.common.normalMap.fr
const colorGLSL = "@export ecgl.color.vertex\n\nuniform mat4 worldViewProjection : WORLDVIEWPROJECTION;\n\n@import ecgl.common.uv.header\n\nattribute vec2 texcoord : TEXCOORD_0;\nattribute vec3 position: POSITION;\n\n@import ecgl.common.wireframe.vertexHeader\n\n#ifdef VERTEX_COLOR\nattribute vec4 a_Color : COLOR;\nvarying vec4 v_Color;\n#endif\n\n#ifdef VERTEX_ANIMATION\nattribute vec3 prevPosition;\nuniform float percent : 1.0;\n#endif\n\n#ifdef ATMOSPHERE_ENABLED\nattribute vec3 normal: NORMAL;\nuniform mat4 worldInverseTranspose : WORLDINVERSETRANSPOSE;\nvarying vec3 v_Normal;\n#endif\n\nvoid main()\n{\n#ifdef VERTEX_ANIMATION\n vec3 pos = mix(prevPosition, position, percent);\n#else\n vec3 pos = position;\n#endif\n\n gl_Position = worldViewProjection * vec4(pos, 1.0);\n\n @import ecgl.common.uv.main\n\n#ifdef VERTEX_COLOR\n v_Color = a_Color;\n#endif\n\n#ifdef ATMOSPHERE_ENABLED\n v_Normal = normalize((worldInverseTranspose * vec4(normal, 0.0)).xyz);\n#endif\n\n @import ecgl.common.wireframe.vertexMain\n\n}\n\n@end\n\n@export ecgl.color.fragment\n\n#define LAYER_DIFFUSEMAP_COUNT 0\n#define LAYER_EMISSIVEMAP_COUNT 0\n\nuniform sampler2D diffuseMap;\nuniform sampler2D detailMap;\n\nuniform vec4 color : [1.0, 1.0, 1.0, 1.0];\n\n#ifdef ATMOSPHERE_ENABLED\nuniform mat4 viewTranspose: VIEWTRANSPOSE;\nuniform vec3 glowColor;\nuniform float glowPower;\nvarying vec3 v_Normal;\n#endif\n\n#ifdef VERTEX_COLOR\nvarying vec4 v_Color;\n#endif\n\n@import ecgl.common.layers.header\n\n@import ecgl.common.uv.fragmentHeader\n\n@import ecgl.common.wireframe.fragmentHeader\n\n@import clay.util.srgb\n\nvoid main()\n{\n#ifdef SRGB_DECODE\n gl_FragColor = sRGBToLinear(color);\n#else\n gl_FragColor = color;\n#endif\n\n#ifdef VERTEX_COLOR\n gl_FragColor *= v_Color;\n#endif\n\n @import ecgl.common.albedo.main\n\n @import ecgl.common.diffuseLayer.main\n\n gl_FragColor *= albedoTexel;\n\n#ifdef ATMOSPHERE_ENABLED\n float atmoIntensity = pow(1.0 - dot(v_Normal, (viewTranspose * vec4(0.0, 0.0, 1.0, 0.0)).xyz), glowPower);\n gl_FragColor.rgb += glowColor * atmoIntensity;\n#endif\n\n @import ecgl.common.emissiveLayer.main\n\n @import ecgl.common.wireframe.fragmentMain\n\n}\n@end";
const lambertGLSL = "/**\n * http: */\n\n@export ecgl.lambert.vertex\n\n@import ecgl.common.transformUniforms\n\n@import ecgl.common.uv.header\n\n\n@import ecgl.common.attributes\n\n@import ecgl.common.wireframe.vertexHeader\n\n#ifdef VERTEX_COLOR\nattribute vec4 a_Color : COLOR;\nvarying vec4 v_Color;\n#endif\n\n\n@import ecgl.common.vertexAnimation.header\n\n\nvarying vec3 v_Normal;\nvarying vec3 v_WorldPosition;\n\nvoid main()\n{\n @import ecgl.common.uv.main\n\n @import ecgl.common.vertexAnimation.main\n\n\n gl_Position = worldViewProjection * vec4(pos, 1.0);\n\n v_Normal = normalize((worldInverseTranspose * vec4(norm, 0.0)).xyz);\n v_WorldPosition = (world * vec4(pos, 1.0)).xyz;\n\n#ifdef VERTEX_COLOR\n v_Color = a_Color;\n#endif\n\n @import ecgl.common.wireframe.vertexMain\n}\n\n@end\n\n\n@export ecgl.lambert.fragment\n\n#define LAYER_DIFFUSEMAP_COUNT 0\n#define LAYER_EMISSIVEMAP_COUNT 0\n\n#define NORMAL_UP_AXIS 1\n#define NORMAL_FRONT_AXIS 2\n\n@import ecgl.common.uv.fragmentHeader\n\nvarying vec3 v_Normal;\nvarying vec3 v_WorldPosition;\n\nuniform sampler2D diffuseMap;\nuniform sampler2D detailMap;\n\n@import ecgl.common.layers.header\n\nuniform float emissionIntensity: 1.0;\n\nuniform vec4 color : [1.0, 1.0, 1.0, 1.0];\n\nuniform mat4 viewInverse : VIEWINVERSE;\n\n#ifdef ATMOSPHERE_ENABLED\nuniform mat4 viewTranspose: VIEWTRANSPOSE;\nuniform vec3 glowColor;\nuniform float glowPower;\n#endif\n\n#ifdef AMBIENT_LIGHT_COUNT\n@import clay.header.ambient_light\n#endif\n#ifdef AMBIENT_SH_LIGHT_COUNT\n@import clay.header.ambient_sh_light\n#endif\n\n#ifdef DIRECTIONAL_LIGHT_COUNT\n@import clay.header.directional_light\n#endif\n\n#ifdef VERTEX_COLOR\nvarying vec4 v_Color;\n#endif\n\n\n@import ecgl.common.ssaoMap.header\n\n@import ecgl.common.bumpMap.header\n\n@import clay.util.srgb\n\n@import ecgl.common.wireframe.fragmentHeader\n\n@import clay.plugin.compute_shadow_map\n\nvoid main()\n{\n#ifdef SRGB_DECODE\n gl_FragColor = sRGBToLinear(color);\n#else\n gl_FragColor = color;\n#endif\n\n#ifdef VERTEX_COLOR\n #ifdef SRGB_DECODE\n gl_FragColor *= sRGBToLinear(v_Color);\n #else\n gl_FragColor *= v_Color;\n #endif\n#endif\n\n @import ecgl.common.albedo.main\n\n @import ecgl.common.diffuseLayer.main\n\n gl_FragColor *= albedoTexel;\n\n vec3 N = v_Normal;\n#ifdef DOUBLE_SIDED\n vec3 eyePos = viewInverse[3].xyz;\n vec3 V = normalize(eyePos - v_WorldPosition);\n\n if (dot(N, V) < 0.0) {\n N = -N;\n }\n#endif\n\n float ambientFactor = 1.0;\n\n#ifdef BUMPMAP_ENABLED\n N = bumpNormal(v_WorldPosition, v_Normal, N);\n ambientFactor = dot(v_Normal, N);\n#endif\n\n vec3 N2 = vec3(N.x, N[NORMAL_UP_AXIS], N[NORMAL_FRONT_AXIS]);\n\n vec3 diffuseColor = vec3(0.0, 0.0, 0.0);\n\n @import ecgl.common.ssaoMap.main\n\n#ifdef AMBIENT_LIGHT_COUNT\n for(int i = 0; i < AMBIENT_LIGHT_COUNT; i++)\n {\n diffuseColor += ambientLightColor[i] * ambientFactor * ao;\n }\n#endif\n#ifdef AMBIENT_SH_LIGHT_COUNT\n for(int _idx_ = 0; _idx_ < AMBIENT_SH_LIGHT_COUNT; _idx_++)\n {{\n diffuseColor += calcAmbientSHLight(_idx_, N2) * ambientSHLightColor[_idx_] * ao;\n }}\n#endif\n#ifdef DIRECTIONAL_LIGHT_COUNT\n#if defined(DIRECTIONAL_LIGHT_SHADOWMAP_COUNT)\n float shadowContribsDir[DIRECTIONAL_LIGHT_COUNT];\n if(shadowEnabled)\n {\n computeShadowOfDirectionalLights(v_WorldPosition, shadowContribsDir);\n }\n#endif\n for(int i = 0; i < DIRECTIONAL_LIGHT_COUNT; i++)\n {\n vec3 lightDirection = -directionalLightDirection[i];\n vec3 lightColor = directionalLightColor[i];\n\n float shadowContrib = 1.0;\n#if defined(DIRECTIONAL_LIGHT_SHADOWMAP_COUNT)\n if (shadowEnabled)\n {\n shadowContrib = shadowContribsDir[i];\n }\n#endif\n\n float ndl = dot(N, normalize(lightDirection)) * shadowContrib;\n\n diffuseColor += lightColor * clamp(ndl, 0.0, 1.0);\n }\n#endif\n\n gl_FragColor.rgb *= diffuseColor;\n\n#ifdef ATMOSPHERE_ENABLED\n float atmoIntensity = pow(1.0 - dot(v_Normal, (viewTranspose * vec4(0.0, 0.0, 1.0, 0.0)).xyz), glowPower);\n gl_FragColor.rgb += glowColor * atmoIntensity;\n#endif\n\n @import ecgl.common.emissiveLayer.main\n\n @import ecgl.common.wireframe.fragmentMai
const realisticGLSL = "@export ecgl.realistic.vertex\n\n@import ecgl.common.transformUniforms\n\n@import ecgl.common.uv.header\n\n@import ecgl.common.attributes\n\n\n@import ecgl.common.wireframe.vertexHeader\n\n#ifdef VERTEX_COLOR\nattribute vec4 a_Color : COLOR;\nvarying vec4 v_Color;\n#endif\n\n#ifdef NORMALMAP_ENABLED\nattribute vec4 tangent : TANGENT;\nvarying vec3 v_Tangent;\nvarying vec3 v_Bitangent;\n#endif\n\n@import ecgl.common.vertexAnimation.header\n\nvarying vec3 v_Normal;\nvarying vec3 v_WorldPosition;\n\nvoid main()\n{\n\n @import ecgl.common.uv.main\n\n @import ecgl.common.vertexAnimation.main\n\n gl_Position = worldViewProjection * vec4(pos, 1.0);\n\n v_Normal = normalize((worldInverseTranspose * vec4(norm, 0.0)).xyz);\n v_WorldPosition = (world * vec4(pos, 1.0)).xyz;\n\n#ifdef VERTEX_COLOR\n v_Color = a_Color;\n#endif\n\n#ifdef NORMALMAP_ENABLED\n v_Tangent = normalize((worldInverseTranspose * vec4(tangent.xyz, 0.0)).xyz);\n v_Bitangent = normalize(cross(v_Normal, v_Tangent) * tangent.w);\n#endif\n\n @import ecgl.common.wireframe.vertexMain\n\n}\n\n@end\n\n\n\n@export ecgl.realistic.fragment\n\n#define LAYER_DIFFUSEMAP_COUNT 0\n#define LAYER_EMISSIVEMAP_COUNT 0\n#define PI 3.14159265358979\n#define ROUGHNESS_CHANEL 0\n#define METALNESS_CHANEL 1\n\n#define NORMAL_UP_AXIS 1\n#define NORMAL_FRONT_AXIS 2\n\n#ifdef VERTEX_COLOR\nvarying vec4 v_Color;\n#endif\n\n@import ecgl.common.uv.fragmentHeader\n\nvarying vec3 v_Normal;\nvarying vec3 v_WorldPosition;\n\nuniform sampler2D diffuseMap;\n\nuniform sampler2D detailMap;\nuniform sampler2D metalnessMap;\nuniform sampler2D roughnessMap;\n\n@import ecgl.common.layers.header\n\nuniform float emissionIntensity: 1.0;\n\nuniform vec4 color : [1.0, 1.0, 1.0, 1.0];\n\nuniform float metalness : 0.0;\nuniform float roughness : 0.5;\n\nuniform mat4 viewInverse : VIEWINVERSE;\n\n#ifdef ATMOSPHERE_ENABLED\nuniform mat4 viewTranspose: VIEWTRANSPOSE;\nuniform vec3 glowColor;\nuniform float glowPower;\n#endif\n\n#ifdef AMBIENT_LIGHT_COUNT\n@import clay.header.ambient_light\n#endif\n\n#ifdef AMBIENT_SH_LIGHT_COUNT\n@import clay.header.ambient_sh_light\n#endif\n\n#ifdef AMBIENT_CUBEMAP_LIGHT_COUNT\n@import clay.header.ambient_cubemap_light\n#endif\n\n#ifdef DIRECTIONAL_LIGHT_COUNT\n@import clay.header.directional_light\n#endif\n\n@import ecgl.common.normalMap.fragmentHeader\n\n@import ecgl.common.ssaoMap.header\n\n@import ecgl.common.bumpMap.header\n\n@import clay.util.srgb\n\n@import clay.util.rgbm\n\n@import ecgl.common.wireframe.fragmentHeader\n\n@import clay.plugin.compute_shadow_map\n\nvec3 F_Schlick(float ndv, vec3 spec) {\n return spec + (1.0 - spec) * pow(1.0 - ndv, 5.0);\n}\n\nfloat D_Phong(float g, float ndh) {\n float a = pow(8192.0, g);\n return (a + 2.0) / 8.0 * pow(ndh, a);\n}\n\nvoid main()\n{\n vec4 albedoColor = color;\n\n vec3 eyePos = viewInverse[3].xyz;\n vec3 V = normalize(eyePos - v_WorldPosition);\n#ifdef VERTEX_COLOR\n #ifdef SRGB_DECODE\n albedoColor *= sRGBToLinear(v_Color);\n #else\n albedoColor *= v_Color;\n #endif\n#endif\n\n @import ecgl.common.albedo.main\n\n @import ecgl.common.diffuseLayer.main\n\n albedoColor *= albedoTexel;\n\n float m = metalness;\n\n#ifdef METALNESSMAP_ENABLED\n float m2 = texture2D(metalnessMap, v_DetailTexcoord)[METALNESS_CHANEL];\n m = clamp(m2 + (m - 0.5) * 2.0, 0.0, 1.0);\n#endif\n\n vec3 baseColor = albedoColor.rgb;\n albedoColor.rgb = baseColor * (1.0 - m);\n vec3 specFactor = mix(vec3(0.04), baseColor, m);\n\n float g = 1.0 - roughness;\n\n#ifdef ROUGHNESSMAP_ENABLED\n float g2 = 1.0 - texture2D(roughnessMap, v_DetailTexcoord)[ROUGHNESS_CHANEL];\n g = clamp(g2 + (g - 0.5) * 2.0, 0.0, 1.0);\n#endif\n\n vec3 N = v_Normal;\n\n#ifdef DOUBLE_SIDED\n if (dot(N, V) < 0.0) {\n N = -N;\n }\n#endif\n\n float ambientFactor = 1.0;\n\n#ifdef BUMPMAP_ENABLED\n N = bumpNormal(v_WorldPosition, v_Normal, N);\n ambientFactor = dot(v_Normal, N);\n#endif\n\n@import ecgl.common.normalMap.fragmentMain\n\n vec3 N2 = vec3(N.x, N[NORMAL_UP_AXIS], N[NORMAL_FRONT_AXIS]);\n\n vec3 diffuseTerm = vec3(0.0);\n vec3 specularTerm = vec3(0.0);\n\n fl
const hatchingGLSL = "@export ecgl.hatching.vertex\n\n@import ecgl.realistic.vertex\n\n@end\n\n\n@export ecgl.hatching.fragment\n\n#define NORMAL_UP_AXIS 1\n#define NORMAL_FRONT_AXIS 2\n\n@import ecgl.common.uv.fragmentHeader\n\nvarying vec3 v_Normal;\nvarying vec3 v_WorldPosition;\n\nuniform vec4 color : [0.0, 0.0, 0.0, 1.0];\nuniform vec4 paperColor : [1.0, 1.0, 1.0, 1.0];\n\nuniform mat4 viewInverse : VIEWINVERSE;\n\n#ifdef AMBIENT_LIGHT_COUNT\n@import clay.header.ambient_light\n#endif\n#ifdef AMBIENT_SH_LIGHT_COUNT\n@import clay.header.ambient_sh_light\n#endif\n\n#ifdef DIRECTIONAL_LIGHT_COUNT\n@import clay.header.directional_light\n#endif\n\n#ifdef VERTEX_COLOR\nvarying vec4 v_Color;\n#endif\n\n\n@import ecgl.common.ssaoMap.header\n\n@import ecgl.common.bumpMap.header\n\n@import clay.util.srgb\n\n@import ecgl.common.wireframe.fragmentHeader\n\n@import clay.plugin.compute_shadow_map\n\nuniform sampler2D hatch1;\nuniform sampler2D hatch2;\nuniform sampler2D hatch3;\nuniform sampler2D hatch4;\nuniform sampler2D hatch5;\nuniform sampler2D hatch6;\n\nfloat shade(in float tone) {\n vec4 c = vec4(1. ,1., 1., 1.);\n float step = 1. / 6.;\n vec2 uv = v_DetailTexcoord;\n if (tone <= step / 2.0) {\n c = mix(vec4(0.), texture2D(hatch6, uv), 12. * tone);\n }\n else if (tone <= step) {\n c = mix(texture2D(hatch6, uv), texture2D(hatch5, uv), 6. * tone);\n }\n if(tone > step && tone <= 2. * step){\n c = mix(texture2D(hatch5, uv), texture2D(hatch4, uv) , 6. * (tone - step));\n }\n if(tone > 2. * step && tone <= 3. * step){\n c = mix(texture2D(hatch4, uv), texture2D(hatch3, uv), 6. * (tone - 2. * step));\n }\n if(tone > 3. * step && tone <= 4. * step){\n c = mix(texture2D(hatch3, uv), texture2D(hatch2, uv), 6. * (tone - 3. * step));\n }\n if(tone > 4. * step && tone <= 5. * step){\n c = mix(texture2D(hatch2, uv), texture2D(hatch1, uv), 6. * (tone - 4. * step));\n }\n if(tone > 5. * step){\n c = mix(texture2D(hatch1, uv), vec4(1.), 6. * (tone - 5. * step));\n }\n\n return c.r;\n}\n\nconst vec3 w = vec3(0.2125, 0.7154, 0.0721);\n\nvoid main()\n{\n#ifdef SRGB_DECODE\n vec4 inkColor = sRGBToLinear(color);\n#else\n vec4 inkColor = color;\n#endif\n\n#ifdef VERTEX_COLOR\n #ifdef SRGB_DECODE\n inkColor *= sRGBToLinear(v_Color);\n #else\n inkColor *= v_Color;\n #endif\n#endif\n\n vec3 N = v_Normal;\n#ifdef DOUBLE_SIDED\n vec3 eyePos = viewInverse[3].xyz;\n vec3 V = normalize(eyePos - v_WorldPosition);\n\n if (dot(N, V) < 0.0) {\n N = -N;\n }\n#endif\n\n float tone = 0.0;\n\n float ambientFactor = 1.0;\n\n#ifdef BUMPMAP_ENABLED\n N = bumpNormal(v_WorldPosition, v_Normal, N);\n ambientFactor = dot(v_Normal, N);\n#endif\n\n vec3 N2 = vec3(N.x, N[NORMAL_UP_AXIS], N[NORMAL_FRONT_AXIS]);\n\n @import ecgl.common.ssaoMap.main\n\n#ifdef AMBIENT_LIGHT_COUNT\n for(int i = 0; i < AMBIENT_LIGHT_COUNT; i++)\n {\n tone += dot(ambientLightColor[i], w) * ambientFactor * ao;\n }\n#endif\n#ifdef AMBIENT_SH_LIGHT_COUNT\n for(int _idx_ = 0; _idx_ < AMBIENT_SH_LIGHT_COUNT; _idx_++)\n {{\n tone += dot(calcAmbientSHLight(_idx_, N2) * ambientSHLightColor[_idx_], w) * ao;\n }}\n#endif\n#ifdef DIRECTIONAL_LIGHT_COUNT\n#if defined(DIRECTIONAL_LIGHT_SHADOWMAP_COUNT)\n float shadowContribsDir[DIRECTIONAL_LIGHT_COUNT];\n if(shadowEnabled)\n {\n computeShadowOfDirectionalLights(v_WorldPosition, shadowContribsDir);\n }\n#endif\n for(int i = 0; i < DIRECTIONAL_LIGHT_COUNT; i++)\n {\n vec3 lightDirection = -directionalLightDirection[i];\n float lightTone = dot(directionalLightColor[i], w);\n\n float shadowContrib = 1.0;\n#if defined(DIRECTIONAL_LIGHT_SHADOWMAP_COUNT)\n if (shadowEnabled)\n {\n shadowContrib = shadowContribsDir[i];\n }\n#endif\n\n float ndl = dot(N, normalize(lightDirection)) * shadowContrib;\n\n tone += lightTone * clamp(ndl, 0.0, 1.0);\n }\n#endif\n\n gl_FragColor = mix(inkColor, paperColor, shade(clamp(tone, 0.0, 1.0)));\n }\n@end\n";
const shadowGLSL = "@export ecgl.sm.depth.vertex\n\nuniform mat4 worldViewProjection : WORLDVIEWPROJECTION;\n\nattribute vec3 position : POSITION;\nattribute vec2 texcoord : TEXCOORD_0;\n\n#ifdef VERTEX_ANIMATION\nattribute vec3 prevPosition;\nuniform float percent : 1.0;\n#endif\n\nvarying vec4 v_ViewPosition;\nvarying vec2 v_Texcoord;\n\nvoid main(){\n\n#ifdef VERTEX_ANIMATION\n vec3 pos = mix(prevPosition, position, percent);\n#else\n vec3 pos = position;\n#endif\n\n v_ViewPosition = worldViewProjection * vec4(pos, 1.0);\n gl_Position = v_ViewPosition;\n\n v_Texcoord = texcoord;\n\n}\n@end\n\n\n\n@export ecgl.sm.depth.fragment\n\n@import clay.sm.depth.fragment\n\n@end";
Object.assign(Node$1.prototype, animatableMixin);
Shader.import(utilShaderCode);
Shader.import(prezGLSL);
Shader.import(commonGLSL);
Shader.import(colorGLSL);
Shader.import(lambertGLSL);
Shader.import(realisticGLSL);
Shader.import(hatchingGLSL);
Shader.import(shadowGLSL);
function isValueNone(value) {
  return !value || value === "none";
}
function isValueImage(value) {
  return value instanceof HTMLCanvasElement || value instanceof HTMLImageElement || value instanceof Image;
}
function isECharts(value) {
  return value.getZr && value.setOption;
}
var oldAddToScene = Scene.prototype.addToScene;
var oldRemoveFromScene = Scene.prototype.removeFromScene;
Scene.prototype.addToScene = function(node) {
  oldAddToScene.call(this, node);
  if (this.__zr) {
    var zr = this.__zr;
    node.traverse(function(child) {
      child.__zr = zr;
      if (child.addAnimatorsToZr) {
        child.addAnimatorsToZr(zr);
      }
    });
  }
};
Scene.prototype.removeFromScene = function(node) {
  oldRemoveFromScene.call(this, node);
  node.traverse(function(child) {
    var zr = child.__zr;
    child.__zr = null;
    if (zr && child.removeAnimatorsFromZr) {
      child.removeAnimatorsFromZr(zr);
    }
  });
};
Material.prototype.setTextureImage = function(textureName, imgValue, api, textureOpts) {
  if (!this.shader) {
    return;
  }
  var zr = api.getZr();
  var material = this;
  var texture;
  material.autoUpdateTextureStatus = false;
  material.disableTexture(textureName);
  if (!isValueNone(imgValue)) {
    texture = graphicGL.loadTexture(imgValue, api, textureOpts, function(texture2) {
      material.enableTexture(textureName);
      zr && zr.refresh();
    });
    material.set(textureName, texture);
  }
  return texture;
};
var graphicGL = {};
graphicGL.Renderer = Renderer;
graphicGL.Node = Node$1;
graphicGL.Mesh = Mesh;
graphicGL.Shader = Shader;
graphicGL.Material = Material;
graphicGL.Texture = Texture;
graphicGL.Texture2D = Texture2D;
graphicGL.Geometry = Geometry;
graphicGL.SphereGeometry = Sphere;
graphicGL.PlaneGeometry = Plane;
graphicGL.CubeGeometry = Cube;
graphicGL.AmbientLight = AmbientLight;
graphicGL.DirectionalLight = DirectionalLight;
graphicGL.PointLight = PointLight;
graphicGL.SpotLight = SpotLight;
graphicGL.PerspectiveCamera = Perspective;
graphicGL.OrthographicCamera = Orthographic;
graphicGL.Vector2 = Vector2;
graphicGL.Vector3 = Vector3;
graphicGL.Vector4 = Vector4;
graphicGL.Quaternion = Quaternion;
graphicGL.Matrix2 = Matrix2;
graphicGL.Matrix2d = Matrix2d;
graphicGL.Matrix3 = Matrix3;
graphicGL.Matrix4 = Matrix4;
graphicGL.Plane = Plane$1;
graphicGL.Ray = Ray;
graphicGL.BoundingBox = BoundingBox;
graphicGL.Frustum = Frustum;
var blankImage = null;
function getBlankImage() {
  if (blankImage !== null) {
    return blankImage;
  }
  blankImage = textureUtil.createBlank("rgba(255,255,255,0)").image;
  return blankImage;
}
function nearestPowerOfTwo(val) {
  return Math.pow(2, Math.round(Math.log(val) / Math.LN2));
}
function convertTextureToPowerOfTwo(texture) {
  if ((texture.wrapS === Texture.REPEAT || texture.wrapT === Texture.REPEAT) && texture.image) {
    var width = nearestPowerOfTwo(texture.width);
    var height = nearestPowerOfTwo(texture.height);
    if (width !== texture.width || height !== texture.height) {
      var canvas = document.createElement("canvas");
      canvas.width = width;
      canvas.height = height;
      var ctx = canvas.getContext("2d");
      ctx.drawImage(texture.image, 0, 0, width, height);
      texture.image = canvas;
    }
  }
}
graphicGL.loadTexture = function(imgValue, api, textureOpts, cb) {
  if (typeof textureOpts === "function") {
    cb = textureOpts;
    textureOpts = {};
  }
  textureOpts = textureOpts || {};
  var keys2 = Object.keys(textureOpts).sort();
  var prefix = "";
  for (var i = 0; i < keys2.length; i++) {
    prefix += keys2[i] + "_" + textureOpts[keys2[i]] + "_";
  }
  var textureCache = api.__textureCache = api.__textureCache || new LRU(20);
  if (isECharts(imgValue)) {
    var id = imgValue.__textureid__;
    var textureObj = textureCache.get(prefix + id);
    if (!textureObj) {
      var surface = new EChartsSurface(imgValue);
      surface.onupdate = function() {
        api.getZr().refresh();
      };
      textureObj = {
        texture: surface.getTexture()
      };
      for (var i = 0; i < keys2.length; i++) {
        textureObj.texture[keys2[i]] = textureOpts[keys2[i]];
      }
      id = imgValue.__textureid__ || "__ecgl_ec__" + textureObj.texture.__uid__;
      imgValue.__textureid__ = id;
      textureCache.put(prefix + id, textureObj);
      cb && cb(textureObj.texture);
    } else {
      textureObj.texture.surface.setECharts(imgValue);
      cb && cb(textureObj.texture);
    }
    return textureObj.texture;
  } else if (isValueImage(imgValue)) {
    var id = imgValue.__textureid__;
    var textureObj = textureCache.get(prefix + id);
    if (!textureObj) {
      textureObj = {
        texture: new graphicGL.Texture2D({
          image: imgValue
        })
      };
      for (var i = 0; i < keys2.length; i++) {
        textureObj.texture[keys2[i]] = textureOpts[keys2[i]];
      }
      id = imgValue.__textureid__ || "__ecgl_image__" + textureObj.texture.__uid__;
      imgValue.__textureid__ = id;
      textureCache.put(prefix + id, textureObj);
      convertTextureToPowerOfTwo(textureObj.texture);
      cb && cb(textureObj.texture);
    }
    return textureObj.texture;
  } else {
    var textureObj = textureCache.get(prefix + imgValue);
    if (textureObj) {
      if (textureObj.callbacks) {
        textureObj.callbacks.push(cb);
      } else {
        cb && cb(textureObj.texture);
      }
    } else {
      if (imgValue.match(/.hdr$|^data:application\/octet-stream/)) {
        textureObj = {
          callbacks: [cb]
        };
        var texture = textureUtil.loadTexture(imgValue, {
          exposure: textureOpts.exposure,
          fileType: "hdr"
        }, function() {
          texture.dirty();
          textureObj.callbacks.forEach(function(cb2) {
            cb2 && cb2(texture);
          });
          textureObj.callbacks = null;
        });
        textureObj.texture = texture;
        textureCache.put(prefix + imgValue, textureObj);
      } else {
        var texture = new graphicGL.Texture2D({
          image: new Image()
        });
        for (var i = 0; i < keys2.length; i++) {
          texture[keys2[i]] = textureOpts[keys2[i]];
        }
        textureObj = {
          texture,
          callbacks: [cb]
        };
        var originalImage = texture.image;
        originalImage.onload = function() {
          texture.image = originalImage;
          convertTextureToPowerOfTwo(texture);
          texture.dirty();
          textureObj.callbacks.forEach(function(cb2) {
            cb2 && cb2(texture);
          });
          textureObj.callbacks = null;
        };
        originalImage.crossOrigin = "Anonymous";
        originalImage.src = imgValue;
        texture.image = getBlankImage();
        textureCache.put(prefix + imgValue, textureObj);
      }
    }
    return textureObj.texture;
  }
};
graphicGL.createAmbientCubemap = function(opt, renderer, api, cb) {
  opt = opt || {};
  var textureUrl = opt.texture;
  var exposure = retrieve.firstNotNull(opt.exposure, 1);
  var ambientCubemap = new AmbientCubemapLight({
    intensity: retrieve.firstNotNull(opt.specularIntensity, 1)
  });
  var ambientSH = new AmbientSHLight({
    intensity: retrieve.firstNotNull(opt.diffuseIntensity, 1),
    coefficients: [0.844, 0.712, 0.691, -0.037, 0.083, 0.167, 0.343, 0.288, 0.299, -0.041, -0.021, -9e-3, -3e-3, -0.041, -0.064, -0.011, -7e-3, -4e-3, -0.031, 0.034, 0.081, -0.06, -0.049, -0.06, 0.046, 0.056, 0.05]
  });
  ambientCubemap.cubemap = graphicGL.loadTexture(textureUrl, api, {
    exposure
  }, function() {
    ambientCubemap.cubemap.flipY = false;
    ambientCubemap.prefilter(renderer, 32);
    ambientSH.coefficients = sh.projectEnvironmentMap(renderer, ambientCubemap.cubemap, {
      lod: 1
    });
    cb && cb();
  });
  return {
    specular: ambientCubemap,
    diffuse: ambientSH
  };
};
graphicGL.createBlankTexture = textureUtil.createBlank;
graphicGL.isImage = isValueImage;
graphicGL.additiveBlend = function(gl) {
  gl.blendEquation(gl.FUNC_ADD);
  gl.blendFunc(gl.SRC_ALPHA, gl.ONE);
};
graphicGL.parseColor = function(colorStr, rgba) {
  if (colorStr instanceof Array) {
    if (!rgba) {
      rgba = [];
    }
    rgba[0] = colorStr[0];
    rgba[1] = colorStr[1];
    rgba[2] = colorStr[2];
    if (colorStr.length > 3) {
      rgba[3] = colorStr[3];
    } else {
      rgba[3] = 1;
    }
    return rgba;
  }
  rgba = parse$1(colorStr || "#000", rgba) || [0, 0, 0, 0];
  rgba[0] /= 255;
  rgba[1] /= 255;
  rgba[2] /= 255;
  return rgba;
};
graphicGL.directionFromAlphaBeta = function(alpha, beta) {
  var theta = alpha / 180 * Math.PI + Math.PI / 2;
  var phi = -beta / 180 * Math.PI + Math.PI / 2;
  var dir = [];
  var r = Math.sin(theta);
  dir[0] = r * Math.cos(phi);
  dir[1] = -Math.cos(theta);
  dir[2] = r * Math.sin(phi);
  return dir;
};
graphicGL.getShadowResolution = function(shadowQuality) {
  var shadowResolution = 1024;
  switch (shadowQuality) {
    case "low":
      shadowResolution = 512;
      break;
    case "medium":
      break;
    case "high":
      shadowResolution = 2048;
      break;
    case "ultra":
      shadowResolution = 4096;
      break;
  }
  return shadowResolution;
};
graphicGL.COMMON_SHADERS = ["lambert", "color", "realistic", "hatching", "shadow"];
graphicGL.createShader = function(prefix) {
  if (prefix === "ecgl.shadow") {
    prefix = "ecgl.displayShadow";
  }
  var vertexShaderStr = Shader.source(prefix + ".vertex");
  var fragmentShaderStr = Shader.source(prefix + ".fragment");
  if (!vertexShaderStr) {
    console.error("Vertex shader of '%s' not exits", prefix);
  }
  if (!fragmentShaderStr) {
    console.error("Fragment shader of '%s' not exits", prefix);
  }
  var shader = new Shader(vertexShaderStr, fragmentShaderStr);
  shader.name = prefix;
  return shader;
};
graphicGL.createMaterial = function(prefix, defines) {
  if (!(defines instanceof Array)) {
    defines = [defines];
  }
  var shader = graphicGL.createShader(prefix);
  var material = new Material({
    shader
  });
  defines.forEach(function(defineName) {
    if (typeof defineName === "string") {
      material.define(defineName);
    }
  });
  return material;
};
graphicGL.setMaterialFromModel = function(shading, material, model, api) {
  material.autoUpdateTextureStatus = false;
  var materialModel = model.getModel(shading + "Material");
  var detailTexture = materialModel.get("detailTexture");
  var uvRepeat = retrieve.firstNotNull(materialModel.get("textureTiling"), 1);
  var uvOffset = retrieve.firstNotNull(materialModel.get("textureOffset"), 0);
  if (typeof uvRepeat === "number") {
    uvRepeat = [uvRepeat, uvRepeat];
  }
  if (typeof uvOffset === "number") {
    uvOffset = [uvOffset, uvOffset];
  }
  var repeatParam = uvRepeat[0] > 1 || uvRepeat[1] > 1 ? graphicGL.Texture.REPEAT : graphicGL.Texture.CLAMP_TO_EDGE;
  var textureOpt = {
    anisotropic: 8,
    wrapS: repeatParam,
    wrapT: repeatParam
  };
  if (shading === "realistic") {
    var roughness = materialModel.get("roughness");
    var metalness = materialModel.get("metalness");
    if (metalness != null) {
      if (isNaN(metalness)) {
        material.setTextureImage("metalnessMap", metalness, api, textureOpt);
        metalness = retrieve.firstNotNull(materialModel.get("metalnessAdjust"), 0.5);
      }
    } else {
      metalness = 0;
    }
    if (roughness != null) {
      if (isNaN(roughness)) {
        material.setTextureImage("roughnessMap", roughness, api, textureOpt);
        roughness = retrieve.firstNotNull(materialModel.get("roughnessAdjust"), 0.5);
      }
    } else {
      roughness = 0.5;
    }
    var normalTextureVal = materialModel.get("normalTexture");
    material.setTextureImage("detailMap", detailTexture, api, textureOpt);
    material.setTextureImage("normalMap", normalTextureVal, api, textureOpt);
    material.set({
      roughness,
      metalness,
      detailUvRepeat: uvRepeat,
      detailUvOffset: uvOffset
    });
  } else if (shading === "lambert") {
    material.setTextureImage("detailMap", detailTexture, api, textureOpt);
    material.set({
      detailUvRepeat: uvRepeat,
      detailUvOffset: uvOffset
    });
  } else if (shading === "color") {
    material.setTextureImage("detailMap", detailTexture, api, textureOpt);
    material.set({
      detailUvRepeat: uvRepeat,
      detailUvOffset: uvOffset
    });
  } else if (shading === "hatching") {
    var tams = materialModel.get("hatchingTextures") || [];
    if (tams.length < 6) ;
    for (var i = 0; i < 6; i++) {
      material.setTextureImage("hatch" + (i + 1), tams[i], api, {
        anisotropic: 8,
        wrapS: graphicGL.Texture.REPEAT,
        wrapT: graphicGL.Texture.REPEAT
      });
    }
    material.set({
      detailUvRepeat: uvRepeat,
      detailUvOffset: uvOffset
    });
  }
};
graphicGL.updateVertexAnimation = function(mappingAttributes, previousMesh, currentMesh, seriesModel) {
  var enableAnimation = seriesModel.get("animation");
  var duration = seriesModel.get("animationDurationUpdate");
  var easing = seriesModel.get("animationEasingUpdate");
  var shadowDepthMaterial = currentMesh.shadowDepthMaterial;
  if (enableAnimation && previousMesh && duration > 0 && previousMesh.geometry.vertexCount === currentMesh.geometry.vertexCount) {
    currentMesh.material.define("vertex", "VERTEX_ANIMATION");
    currentMesh.ignorePreZ = true;
    if (shadowDepthMaterial) {
      shadowDepthMaterial.define("vertex", "VERTEX_ANIMATION");
    }
    for (var i = 0; i < mappingAttributes.length; i++) {
      currentMesh.geometry.attributes[mappingAttributes[i][0]].value = previousMesh.geometry.attributes[mappingAttributes[i][1]].value;
    }
    currentMesh.geometry.dirty();
    currentMesh.__percent = 0;
    currentMesh.material.set("percent", 0);
    currentMesh.stopAnimation();
    currentMesh.animate().when(duration, {
      __percent: 1
    }).during(function() {
      currentMesh.material.set("percent", currentMesh.__percent);
      if (shadowDepthMaterial) {
        shadowDepthMaterial.set("percent", currentMesh.__percent);
      }
    }).done(function() {
      currentMesh.ignorePreZ = false;
      currentMesh.material.undefine("vertex", "VERTEX_ANIMATION");
      if (shadowDepthMaterial) {
        shadowDepthMaterial.undefine("vertex", "VERTEX_ANIMATION");
      }
    }).start(easing);
  } else {
    currentMesh.material.undefine("vertex", "VERTEX_ANIMATION");
    if (shadowDepthMaterial) {
      shadowDepthMaterial.undefine("vertex", "VERTEX_ANIMATION");
    }
  }
};
var requestAnimationFrame;
requestAnimationFrame = env.hasGlobalWindow && (window.requestAnimationFrame && window.requestAnimationFrame.bind(window) || window.msRequestAnimationFrame && window.msRequestAnimationFrame.bind(window) || window.mozRequestAnimationFrame || window.webkitRequestAnimationFrame) || function(func) {
  return setTimeout(func, 16);
};
var LayerGL = function(id, zr) {
  this.id = id;
  this.zr = zr;
  try {
    this.renderer = new Renderer({
      clearBit: 0,
      devicePixelRatio: zr.painter.dpr,
      preserveDrawingBuffer: true,
      // PENDING
      premultipliedAlpha: true
    });
    this.renderer.resize(zr.painter.getWidth(), zr.painter.getHeight());
  } catch (e2) {
    this.renderer = null;
    this.dom = document.createElement("div");
    this.dom.style.cssText = "position:absolute; left: 0; top: 0; right: 0; bottom: 0;";
    this.dom.className = "ecgl-nowebgl";
    this.dom.innerHTML = "Sorry, your browser does not support WebGL";
    console.error(e2);
    return;
  }
  this.onglobalout = this.onglobalout.bind(this);
  zr.on("globalout", this.onglobalout);
  this.dom = this.renderer.canvas;
  var style = this.dom.style;
  style.position = "absolute";
  style.left = "0";
  style.top = "0";
  this.views = [];
  this._picking = new RayPicking({
    renderer: this.renderer
  });
  this._viewsToDispose = [];
  this._accumulatingId = 0;
  this._zrEventProxy = new Rect({
    shape: {
      x: -1,
      y: -1,
      width: 2,
      height: 2
    },
    // FIXME Better solution.
    __isGLToZRProxy: true
  });
  this._backgroundColor = null;
  this._disposed = false;
};
LayerGL.prototype.setUnpainted = function() {
};
LayerGL.prototype.addView = function(view) {
  if (view.layer === this) {
    return;
  }
  var idx = this._viewsToDispose.indexOf(view);
  if (idx >= 0) {
    this._viewsToDispose.splice(idx, 1);
  }
  this.views.push(view);
  view.layer = this;
  var zr = this.zr;
  view.scene.traverse(function(node) {
    node.__zr = zr;
    if (node.addAnimatorsToZr) {
      node.addAnimatorsToZr(zr);
    }
  });
};
function removeFromZr(node) {
  var zr = node.__zr;
  node.__zr = null;
  if (zr && node.removeAnimatorsFromZr) {
    node.removeAnimatorsFromZr(zr);
  }
}
LayerGL.prototype.removeView = function(view) {
  if (view.layer !== this) {
    return;
  }
  var idx = this.views.indexOf(view);
  if (idx >= 0) {
    this.views.splice(idx, 1);
    view.scene.traverse(removeFromZr, this);
    view.layer = null;
    this._viewsToDispose.push(view);
  }
};
LayerGL.prototype.removeViewsAll = function() {
  this.views.forEach(function(view) {
    view.scene.traverse(removeFromZr, this);
    view.layer = null;
    this._viewsToDispose.push(view);
  }, this);
  this.views.length = 0;
};
LayerGL.prototype.resize = function(width, height) {
  var renderer = this.renderer;
  renderer.resize(width, height);
};
LayerGL.prototype.clear = function() {
  var gl = this.renderer.gl;
  var clearColor = this._backgroundColor || [0, 0, 0, 0];
  gl.clearColor(clearColor[0], clearColor[1], clearColor[2], clearColor[3]);
  gl.depthMask(true);
  gl.colorMask(true, true, true, true);
  gl.clear(gl.DEPTH_BUFFER_BIT | gl.COLOR_BUFFER_BIT);
};
LayerGL.prototype.clearDepth = function() {
  var gl = this.renderer.gl;
  gl.clear(gl.DEPTH_BUFFER_BIT);
};
LayerGL.prototype.clearColor = function() {
  var gl = this.renderer.gl;
  gl.clearColor(0, 0, 0, 0);
  gl.clear(gl.COLOR_BUFFER_BIT);
};
LayerGL.prototype.needsRefresh = function() {
  this.zr.refresh();
};
LayerGL.prototype.refresh = function(bgColor) {
  this._backgroundColor = bgColor ? graphicGL.parseColor(bgColor) : [0, 0, 0, 0];
  this.renderer.clearColor = this._backgroundColor;
  for (var i = 0; i < this.views.length; i++) {
    this.views[i].prepareRender(this.renderer);
  }
  this._doRender(false);
  this._trackAndClean();
  for (var i = 0; i < this._viewsToDispose.length; i++) {
    this._viewsToDispose[i].dispose(this.renderer);
  }
  this._viewsToDispose.length = 0;
  this._startAccumulating();
};
LayerGL.prototype.renderToCanvas = function(ctx) {
  this._startAccumulating(true);
  ctx.drawImage(this.dom, 0, 0, ctx.canvas.width, ctx.canvas.height);
};
LayerGL.prototype._doRender = function(accumulating) {
  this.clear();
  this.renderer.saveViewport();
  for (var i = 0; i < this.views.length; i++) {
    this.views[i].render(this.renderer, accumulating);
  }
  this.renderer.restoreViewport();
};
LayerGL.prototype._stopAccumulating = function() {
  this._accumulatingId = 0;
  clearTimeout(this._accumulatingTimeout);
};
var accumulatingId = 1;
LayerGL.prototype._startAccumulating = function(immediate) {
  var self2 = this;
  this._stopAccumulating();
  var needsAccumulate = false;
  for (var i = 0; i < this.views.length; i++) {
    needsAccumulate = this.views[i].needsAccumulate() || needsAccumulate;
  }
  if (!needsAccumulate) {
    return;
  }
  function accumulate(id) {
    if (!self2._accumulatingId || id !== self2._accumulatingId) {
      return;
    }
    var isFinished = true;
    for (var i2 = 0; i2 < self2.views.length; i2++) {
      isFinished = self2.views[i2].isAccumulateFinished() && needsAccumulate;
    }
    if (!isFinished) {
      self2._doRender(true);
      if (immediate) {
        accumulate(id);
      } else {
        requestAnimationFrame(function() {
          accumulate(id);
        });
      }
    }
  }
  this._accumulatingId = accumulatingId++;
  if (immediate) {
    accumulate(self2._accumulatingId);
  } else {
    this._accumulatingTimeout = setTimeout(function() {
      accumulate(self2._accumulatingId);
    }, 50);
  }
};
LayerGL.prototype._trackAndClean = function() {
  var textureList = [];
  var geometriesList = [];
  if (this._textureList) {
    markUnused(this._textureList);
    markUnused(this._geometriesList);
  }
  for (var i = 0; i < this.views.length; i++) {
    collectResources(this.views[i].scene, textureList, geometriesList);
  }
  if (this._textureList) {
    checkAndDispose(this.renderer, this._textureList);
    checkAndDispose(this.renderer, this._geometriesList);
  }
  this._textureList = textureList;
  this._geometriesList = geometriesList;
};
function markUnused(resourceList) {
  for (var i = 0; i < resourceList.length; i++) {
    resourceList[i].__used__ = 0;
  }
}
function checkAndDispose(renderer, resourceList) {
  for (var i = 0; i < resourceList.length; i++) {
    if (!resourceList[i].__used__) {
      resourceList[i].dispose(renderer);
    }
  }
}
function updateUsed(resource, list) {
  resource.__used__ = resource.__used__ || 0;
  resource.__used__++;
  if (resource.__used__ === 1) {
    list.push(resource);
  }
}
function collectResources(scene, textureResourceList, geometryResourceList) {
  var prevMaterial;
  var prevGeometry;
  scene.traverse(function(renderable) {
    if (renderable.isRenderable()) {
      var geometry = renderable.geometry;
      var material = renderable.material;
      if (material !== prevMaterial) {
        var textureUniforms = material.getTextureUniforms();
        for (var u = 0; u < textureUniforms.length; u++) {
          var uniformName = textureUniforms[u];
          var val = material.uniforms[uniformName].value;
          if (!val) {
            continue;
          }
          if (val instanceof Texture) {
            updateUsed(val, textureResourceList);
          } else if (val instanceof Array) {
            for (var k2 = 0; k2 < val.length; k2++) {
              if (val[k2] instanceof Texture) {
                updateUsed(val[k2], textureResourceList);
              }
            }
          }
        }
      }
      if (geometry !== prevGeometry) {
        updateUsed(geometry, geometryResourceList);
      }
      prevMaterial = material;
      prevGeometry = geometry;
    }
  });
  for (var k = 0; k < scene.lights.length; k++) {
    if (scene.lights[k].cubemap) {
      updateUsed(scene.lights[k].cubemap, textureResourceList);
    }
  }
}
LayerGL.prototype.dispose = function() {
  if (this._disposed) {
    return;
  }
  this._stopAccumulating();
  if (this._textureList) {
    markUnused(this._textureList);
    markUnused(this._geometriesList);
    checkAndDispose(this.renderer, this._textureList);
    checkAndDispose(this.renderer, this._geometriesList);
  }
  this.zr.off("globalout", this.onglobalout);
  this._disposed = true;
};
LayerGL.prototype.onmousedown = function(e2) {
  if (e2.target && e2.target.__isGLToZRProxy) {
    return;
  }
  e2 = e2.event;
  var obj = this.pickObject(e2.offsetX, e2.offsetY);
  if (obj) {
    this._dispatchEvent("mousedown", e2, obj);
    this._dispatchDataEvent("mousedown", e2, obj);
  }
  this._downX = e2.offsetX;
  this._downY = e2.offsetY;
};
LayerGL.prototype.onmousemove = function(e2) {
  if (e2.target && e2.target.__isGLToZRProxy) {
    return;
  }
  e2 = e2.event;
  var obj = this.pickObject(e2.offsetX, e2.offsetY);
  var target = obj && obj.target;
  var lastHovered = this._hovered;
  this._hovered = obj;
  if (lastHovered && target !== lastHovered.target) {
    lastHovered.relatedTarget = target;
    this._dispatchEvent("mouseout", e2, lastHovered);
    this.zr.setCursorStyle("default");
  }
  this._dispatchEvent("mousemove", e2, obj);
  if (obj) {
    this.zr.setCursorStyle("pointer");
    if (!lastHovered || target !== lastHovered.target) {
      this._dispatchEvent("mouseover", e2, obj);
    }
  }
  this._dispatchDataEvent("mousemove", e2, obj);
};
LayerGL.prototype.onmouseup = function(e2) {
  if (e2.target && e2.target.__isGLToZRProxy) {
    return;
  }
  e2 = e2.event;
  var obj = this.pickObject(e2.offsetX, e2.offsetY);
  if (obj) {
    this._dispatchEvent("mouseup", e2, obj);
    this._dispatchDataEvent("mouseup", e2, obj);
  }
  this._upX = e2.offsetX;
  this._upY = e2.offsetY;
};
LayerGL.prototype.onclick = LayerGL.prototype.dblclick = function(e2) {
  if (e2.target && e2.target.__isGLToZRProxy) {
    return;
  }
  var dx = this._upX - this._downX;
  var dy = this._upY - this._downY;
  if (Math.sqrt(dx * dx + dy * dy) > 20) {
    return;
  }
  e2 = e2.event;
  var obj = this.pickObject(e2.offsetX, e2.offsetY);
  if (obj) {
    this._dispatchEvent(e2.type, e2, obj);
    this._dispatchDataEvent(e2.type, e2, obj);
  }
  var result = this._clickToSetFocusPoint(e2);
  if (result) {
    var success = result.view.setDOFFocusOnPoint(result.distance);
    if (success) {
      this.zr.refresh();
    }
  }
};
LayerGL.prototype._clickToSetFocusPoint = function(e2) {
  var renderer = this.renderer;
  var oldViewport = renderer.viewport;
  for (var i = this.views.length - 1; i >= 0; i--) {
    var viewGL = this.views[i];
    if (viewGL.hasDOF() && viewGL.containPoint(e2.offsetX, e2.offsetY)) {
      this._picking.scene = viewGL.scene;
      this._picking.camera = viewGL.camera;
      renderer.viewport = viewGL.viewport;
      var result = this._picking.pick(e2.offsetX, e2.offsetY, true);
      if (result) {
        result.view = viewGL;
        return result;
      }
    }
  }
  renderer.viewport = oldViewport;
};
LayerGL.prototype.onglobalout = function(e2) {
  var lastHovered = this._hovered;
  if (lastHovered) {
    this._dispatchEvent("mouseout", e2, {
      target: lastHovered.target
    });
  }
};
LayerGL.prototype.pickObject = function(x, y) {
  var output = [];
  var renderer = this.renderer;
  var oldViewport = renderer.viewport;
  for (var i = 0; i < this.views.length; i++) {
    var viewGL = this.views[i];
    if (viewGL.containPoint(x, y)) {
      this._picking.scene = viewGL.scene;
      this._picking.camera = viewGL.camera;
      renderer.viewport = viewGL.viewport;
      this._picking.pickAll(x, y, output);
    }
  }
  renderer.viewport = oldViewport;
  output.sort(function(a, b) {
    return a.distance - b.distance;
  });
  return output[0];
};
LayerGL.prototype._dispatchEvent = function(eveName, originalEvent, newEvent) {
  if (!newEvent) {
    newEvent = {};
  }
  var current = newEvent.target;
  newEvent.cancelBubble = false;
  newEvent.event = originalEvent;
  newEvent.type = eveName;
  newEvent.offsetX = originalEvent.offsetX;
  newEvent.offsetY = originalEvent.offsetY;
  while (current) {
    current.trigger(eveName, newEvent);
    current = current.getParent();
    if (newEvent.cancelBubble) {
      break;
    }
  }
  this._dispatchToView(eveName, newEvent);
};
LayerGL.prototype._dispatchDataEvent = function(eveName, originalEvent, newEvent) {
  var mesh2 = newEvent && newEvent.target;
  var dataIndex = mesh2 && mesh2.dataIndex;
  var seriesIndex = mesh2 && mesh2.seriesIndex;
  var eventData = mesh2 && mesh2.eventData;
  var elChangedInMouseMove = false;
  var eventProxy = this._zrEventProxy;
  eventProxy.x = originalEvent.offsetX;
  eventProxy.y = originalEvent.offsetY;
  eventProxy.update();
  var targetInfo = {
    target: eventProxy
  };
  const ecData = getECData(eventProxy);
  if (eveName === "mousemove") {
    if (dataIndex != null) {
      if (dataIndex !== this._lastDataIndex) {
        if (parseInt(this._lastDataIndex, 10) >= 0) {
          ecData.dataIndex = this._lastDataIndex;
          ecData.seriesIndex = this._lastSeriesIndex;
          this.zr.handler.dispatchToElement(targetInfo, "mouseout", originalEvent);
        }
        elChangedInMouseMove = true;
      }
    } else if (eventData != null) {
      if (eventData !== this._lastEventData) {
        if (this._lastEventData != null) {
          ecData.eventData = this._lastEventData;
          this.zr.handler.dispatchToElement(targetInfo, "mouseout", originalEvent);
        }
        elChangedInMouseMove = true;
      }
    }
    this._lastEventData = eventData;
    this._lastDataIndex = dataIndex;
    this._lastSeriesIndex = seriesIndex;
  }
  ecData.eventData = eventData;
  ecData.dataIndex = dataIndex;
  ecData.seriesIndex = seriesIndex;
  if (eventData != null || parseInt(dataIndex, 10) >= 0 && parseInt(seriesIndex, 10) >= 0) {
    this.zr.handler.dispatchToElement(targetInfo, eveName, originalEvent);
    if (elChangedInMouseMove) {
      this.zr.handler.dispatchToElement(targetInfo, "mouseover", originalEvent);
    }
  }
};
LayerGL.prototype._dispatchToView = function(eventName, e2) {
  for (var i = 0; i < this.views.length; i++) {
    if (this.views[i].containPoint(e2.offsetX, e2.offsetY)) {
      this.views[i].trigger(eventName, e2);
    }
  }
};
Object.assign(LayerGL.prototype, notifier);
var GL_SERIES = ["bar3D", "line3D", "map3D", "scatter3D", "surface", "lines3D", "scatterGL", "scatter3D"];
function convertNormalEmphasis(option, optType) {
  if (option && option[optType] && (option[optType].normal || option[optType].emphasis)) {
    var normalOpt = option[optType].normal;
    var emphasisOpt = option[optType].emphasis;
    if (normalOpt) {
      option[optType] = normalOpt;
    }
    if (emphasisOpt) {
      option.emphasis = option.emphasis || {};
      option.emphasis[optType] = emphasisOpt;
    }
  }
}
function convertNormalEmphasisForEach(option) {
  convertNormalEmphasis(option, "itemStyle");
  convertNormalEmphasis(option, "lineStyle");
  convertNormalEmphasis(option, "areaStyle");
  convertNormalEmphasis(option, "label");
}
function removeTextStyleInAxis(axesOpt) {
  if (!axesOpt) {
    return;
  }
  if (!(axesOpt instanceof Array)) {
    axesOpt = [axesOpt];
  }
  each(axesOpt, function(axisOpt) {
    if (axisOpt.axisLabel) {
      var labelOpt = axisOpt.axisLabel;
      Object.assign(labelOpt, labelOpt.textStyle);
      labelOpt.textStyle = null;
    }
  });
}
function backwardCompat(option) {
  each(option.series, function(series) {
    if (indexOf(GL_SERIES, series.type) >= 0) {
      convertNormalEmphasisForEach(series);
      if (series.coordinateSystem === "mapbox") {
        series.coordinateSystem = "mapbox3D";
        option.mapbox3D = option.mapbox;
      }
    }
  });
  removeTextStyleInAxis(option.xAxis3D);
  removeTextStyleInAxis(option.yAxis3D);
  removeTextStyleInAxis(option.zAxis3D);
  removeTextStyleInAxis(option.grid3D);
  convertNormalEmphasis(option.geo3D);
}
function EChartsGL(zr) {
  this._layers = {};
  this._zr = zr;
}
EChartsGL.prototype.update = function(ecModel, api) {
  var self2 = this;
  var zr = api.getZr();
  if (!zr.getWidth() || !zr.getHeight()) {
    console.warn("Dom has no width or height");
    return;
  }
  function getLayerGL(model) {
    zr.setSleepAfterStill(0);
    var zlevel2;
    if (model.coordinateSystem && model.coordinateSystem.model) {
      zlevel2 = model.get("zlevel");
    } else {
      zlevel2 = model.get("zlevel");
    }
    var layers = self2._layers;
    var layerGL = layers[zlevel2];
    if (!layerGL) {
      layerGL = layers[zlevel2] = new LayerGL("gl-" + zlevel2, zr);
      if (zr.painter.isSingleCanvas()) {
        layerGL.virtual = true;
        var img = new ZRImage({
          z: 1e4,
          style: {
            image: layerGL.renderer.canvas
          },
          silent: true
        });
        layerGL.__hostImage = img;
        zr.add(img);
      }
      zr.painter.insertLayer(zlevel2, layerGL);
    }
    if (layerGL.__hostImage) {
      layerGL.__hostImage.setStyle({
        width: layerGL.renderer.getWidth(),
        height: layerGL.renderer.getHeight()
      });
    }
    return layerGL;
  }
  function setSilent(groupGL, silent) {
    if (groupGL) {
      groupGL.traverse(function(mesh2) {
        if (mesh2.isRenderable && mesh2.isRenderable()) {
          mesh2.ignorePicking = mesh2.$ignorePicking != null ? mesh2.$ignorePicking : silent;
        }
      });
    }
  }
  for (var zlevel in this._layers) {
    this._layers[zlevel].removeViewsAll();
  }
  ecModel.eachComponent(function(componentType, componentModel) {
    if (componentType !== "series") {
      var view = api.getViewOfComponentModel(componentModel);
      var coordSys = componentModel.coordinateSystem;
      if (view.__ecgl__) {
        var viewGL;
        if (coordSys) {
          if (!coordSys.viewGL) {
            console.error("Can't find viewGL in coordinateSystem of component " + componentModel.id);
            return;
          }
          viewGL = coordSys.viewGL;
        } else {
          if (!componentModel.viewGL) {
            console.error("Can't find viewGL of component " + componentModel.id);
            return;
          }
          viewGL = coordSys.viewGL;
        }
        var viewGL = coordSys.viewGL;
        var layerGL = getLayerGL(componentModel);
        layerGL.addView(viewGL);
        view.afterRender && view.afterRender(componentModel, ecModel, api, layerGL);
        setSilent(view.groupGL, componentModel.get("silent"));
      }
    }
  });
  ecModel.eachSeries(function(seriesModel) {
    var chartView = api.getViewOfSeriesModel(seriesModel);
    var coordSys = seriesModel.coordinateSystem;
    if (chartView.__ecgl__) {
      if (coordSys && !coordSys.viewGL && !chartView.viewGL) {
        console.error("Can't find viewGL of series " + chartView.id);
        return;
      }
      var viewGL = coordSys && coordSys.viewGL || chartView.viewGL;
      var layerGL = getLayerGL(seriesModel);
      layerGL.addView(viewGL);
      chartView.afterRender && chartView.afterRender(seriesModel, ecModel, api, layerGL);
      setSilent(chartView.groupGL, seriesModel.get("silent"));
    }
  });
};
registerPostInit(function(chart) {
  var zr = chart.getZr();
  var oldDispose = zr.painter.dispose;
  zr.painter.dispose = function() {
    if (typeof this.eachOtherLayer === "function") {
      this.eachOtherLayer(function(layer) {
        if (layer instanceof LayerGL) {
          layer.dispose();
        }
      });
    }
    oldDispose.call(this);
  };
  zr.painter.getRenderedCanvas = function(opts) {
    opts = opts || {};
    if (this._singleCanvas) {
      return this._layers[0].dom;
    }
    var canvas = document.createElement("canvas");
    var dpr = opts.pixelRatio || this.dpr;
    canvas.width = this.getWidth() * dpr;
    canvas.height = this.getHeight() * dpr;
    var ctx = canvas.getContext("2d");
    ctx.dpr = dpr;
    ctx.clearRect(0, 0, canvas.width, canvas.height);
    if (opts.backgroundColor) {
      ctx.fillStyle = opts.backgroundColor;
      ctx.fillRect(0, 0, canvas.width, canvas.height);
    }
    var displayList = this.storage.getDisplayList(true);
    var scope = {};
    var zlevel;
    var self2 = this;
    function findAndDrawOtherLayer(smaller, larger) {
      var zlevelList = self2._zlevelList;
      if (smaller == null) {
        smaller = -Infinity;
      }
      var intermediateLayer;
      for (var i2 = 0; i2 < zlevelList.length; i2++) {
        var z = zlevelList[i2];
        var layer2 = self2._layers[z];
        if (!layer2.__builtin__ && z > smaller && z < larger) {
          intermediateLayer = layer2;
          break;
        }
      }
      if (intermediateLayer && intermediateLayer.renderToCanvas) {
        ctx.save();
        intermediateLayer.renderToCanvas(ctx);
        ctx.restore();
      }
    }
    var layer = {
      ctx
    };
    for (var i = 0; i < displayList.length; i++) {
      var el = displayList[i];
      if (el.zlevel !== zlevel) {
        findAndDrawOtherLayer(zlevel, el.zlevel);
        zlevel = el.zlevel;
      }
      this._doPaintEl(el, layer, true, null, scope);
    }
    findAndDrawOtherLayer(zlevel, Infinity);
    return canvas;
  };
});
registerPostUpdate(function(ecModel, api) {
  var zr = api.getZr();
  var egl = zr.__egl = zr.__egl || new EChartsGL(zr);
  egl.update(ecModel, api);
});
registerPreprocessor(backwardCompat);
const componentViewControlMixin = {
  defaultOption: {
    viewControl: {
      // perspective, orthographic.
      // TODO Isometric
      projection: "perspective",
      // If rotate on on init
      autoRotate: false,
      // cw or ccw
      autoRotateDirection: "cw",
      // Degree per second
      autoRotateSpeed: 10,
      // Start rotating after still for a given time
      // default is 3 seconds
      autoRotateAfterStill: 3,
      // Rotate, zoom damping.
      damping: 0.8,
      // Sensitivities for operations.
      // Can be array to set x,y respectively
      rotateSensitivity: 1,
      zoomSensitivity: 1,
      // Can be array to set x,y respectively
      panSensitivity: 1,
      // Which mouse button do rotate or pan
      panMouseButton: "middle",
      rotateMouseButton: "left",
      // Distance to the target
      // Only available when camera is perspective.
      distance: 150,
      // Min distance mouse can zoom in
      minDistance: 40,
      // Max distance mouse can zoom out
      maxDistance: 400,
      // Size of viewing volume.
      // Only available when camera is orthographic
      orthographicSize: 150,
      maxOrthographicSize: 400,
      minOrthographicSize: 20,
      // Center view point
      center: [0, 0, 0],
      // Alpha angle for top-down rotation
      // Positive to rotate to top.
      alpha: 0,
      // beta angle for left-right rotation
      // Positive to rotate to right.
      beta: 0,
      minAlpha: -90,
      maxAlpha: 90
      // minBeta: -Infinity
      // maxBeta: -Infinity
    }
  },
  setView: function(opts) {
    opts = opts || {};
    this.option.viewControl = this.option.viewControl || {};
    if (opts.alpha != null) {
      this.option.viewControl.alpha = opts.alpha;
    }
    if (opts.beta != null) {
      this.option.viewControl.beta = opts.beta;
    }
    if (opts.distance != null) {
      this.option.viewControl.distance = opts.distance;
    }
    if (opts.center != null) {
      this.option.viewControl.center = opts.center;
    }
  }
};
const componentPostEffectMixin = {
  defaultOption: {
    // Post effect
    postEffect: {
      enable: false,
      bloom: {
        enable: true,
        intensity: 0.1
      },
      depthOfField: {
        enable: false,
        focalRange: 20,
        focalDistance: 50,
        blurRadius: 10,
        fstop: 2.8,
        quality: "medium"
      },
      screenSpaceAmbientOcclusion: {
        enable: false,
        radius: 2,
        // low, medium, high, ultra
        quality: "medium",
        intensity: 1
      },
      screenSpaceReflection: {
        enable: false,
        quality: "medium",
        maxRoughness: 0.8
      },
      colorCorrection: {
        enable: true,
        exposure: 0,
        brightness: 0,
        contrast: 1,
        saturation: 1,
        lookupTexture: ""
      },
      edge: {
        enable: false
      },
      FXAA: {
        enable: false
      }
    },
    // Temporal super sampling when the picture is still.
    temporalSuperSampling: {
      // Only enabled when postEffect is enabled
      enable: "auto"
    }
  }
};
const componentLightMixin = {
  defaultOption: {
    // Light is available when material.shading is not color
    light: {
      // Main light
      main: {
        shadow: false,
        // low, medium, high, ultra
        shadowQuality: "high",
        color: "#fff",
        intensity: 1,
        alpha: 0,
        beta: 0
      },
      ambient: {
        color: "#fff",
        intensity: 0.2
      },
      ambientCubemap: {
        // Panorama environment texture,
        // Support .hdr and commmon web formats.
        texture: null,
        // Available when texture is hdr.
        exposure: 1,
        // Intensity for diffuse term
        diffuseIntensity: 0.5,
        // Intensity for specular term, only available when shading is realastic
        specularIntensity: 0.5
      }
    }
  }
};
var Grid3DModel = ComponentModel.extend({
  type: "grid3D",
  dependencies: ["xAxis3D", "yAxis3D", "zAxis3D"],
  defaultOption: {
    show: true,
    zlevel: -10,
    // Layout used for viewport
    left: 0,
    top: 0,
    width: "100%",
    height: "100%",
    environment: "auto",
    // Dimension of grid3D
    boxWidth: 100,
    boxHeight: 100,
    boxDepth: 100,
    // Common axis options.
    axisPointer: {
      show: true,
      lineStyle: {
        color: "rgba(0, 0, 0, 0.8)",
        width: 1
      },
      label: {
        show: true,
        // (dimValue: number, value: Array) => string
        formatter: null,
        // TODO, Consider boxWidth
        margin: 8,
        // backgroundColor: '#ffbd67',
        // borderColor: '#000',
        // borderWidth: 0,
        textStyle: {
          fontSize: 14,
          color: "#fff",
          backgroundColor: "rgba(0,0,0,0.5)",
          padding: 3,
          borderRadius: 3
        }
      }
    },
    axisLine: {
      show: true,
      lineStyle: {
        color: "#333",
        width: 2,
        type: "solid"
      }
    },
    axisTick: {
      show: true,
      inside: false,
      length: 3,
      lineStyle: {
        width: 1
      }
    },
    axisLabel: {
      show: true,
      inside: false,
      rotate: 0,
      margin: 8,
      textStyle: {
        fontSize: 12
      }
    },
    splitLine: {
      show: true,
      lineStyle: {
        color: ["#ccc"],
        width: 1,
        type: "solid"
      }
    },
    splitArea: {
      show: false,
      areaStyle: {
        color: ["rgba(250,250,250,0.3)", "rgba(200,200,200,0.3)"]
      }
    },
    // Light options
    light: {
      main: {
        // Alpha angle for top-down rotation
        // Positive to rotate to top.
        alpha: 30,
        // beta angle for left-right rotation
        // Positive to rotate to right.
        beta: 40
      },
      ambient: {
        intensity: 0.4
      }
    },
    viewControl: {
      // Small damping for precise control.
      // damping: 0.1,
      // Alpha angle for top-down rotation
      // Positive to rotate to top.
      alpha: 20,
      // beta angle for left-right rotation
      // Positive to rotate to right.
      beta: 40,
      autoRotate: false,
      // Distance to the surface of grid3D.
      distance: 200,
      // Min distance to the surface of grid3D
      minDistance: 40,
      // Max distance to the surface of grid3D
      maxDistance: 400
    }
  }
});
merge(Grid3DModel.prototype, componentViewControlMixin);
merge(Grid3DModel.prototype, componentPostEffectMixin);
merge(Grid3DModel.prototype, componentLightMixin);
var firstNotNull$3 = retrieve.firstNotNull;
var MOUSE_BUTTON_KEY_MAP = {
  left: 0,
  middle: 1,
  right: 2
};
function convertToArray(val) {
  if (!(val instanceof Array)) {
    val = [val, val];
  }
  return val;
}
var OrbitControl = Base.extend(function() {
  return {
    /**
     * @type {module:zrender~ZRender}
     */
    zr: null,
    /**
     * @type {module:echarts-gl/core/ViewGL}
     */
    viewGL: null,
    /**
     * @type {clay.math.Vector3}
     */
    _center: new Vector3(),
    /**
     * Minimum distance to the center
     * Only available when camera is perspective.
     * @type {number}
     * @default 0.5
     */
    minDistance: 0.5,
    /**
     * Maximum distance to the center
     * Only available when camera is perspective.
     * @type {number}
     * @default 2
     */
    maxDistance: 1.5,
    /**
     * Only available when camera is orthographic
     */
    maxOrthographicSize: 300,
    /**
     * Only available when camera is orthographic
     */
    minOrthographicSize: 30,
    /**
     * Minimum alpha rotation
     */
    minAlpha: -90,
    /**
     * Maximum alpha rotation
     */
    maxAlpha: 90,
    /**
     * Minimum beta rotation
     */
    minBeta: -Infinity,
    /**
     * Maximum beta rotation
     */
    maxBeta: Infinity,
    /**
     * Start auto rotating after still for the given time
     */
    autoRotateAfterStill: 0,
    /**
     * Direction of autoRotate. cw or ccw when looking top down.
     */
    autoRotateDirection: "cw",
    /**
     * Degree per second
     */
    autoRotateSpeed: 60,
    /**
     * @param {number}
     */
    damping: 0.8,
    /**
     * @param {number}
     */
    rotateSensitivity: 1,
    /**
     * @param {number}
     */
    zoomSensitivity: 1,
    /**
     * @param {number}
     */
    panSensitivity: 1,
    panMouseButton: "middle",
    rotateMouseButton: "left",
    /**
     * Pan or rotate
     * @private
     * @type {String}
     */
    _mode: "rotate",
    /**
     * @private
     * @type {clay.Camera}
     */
    _camera: null,
    _needsUpdate: false,
    _rotating: false,
    // Rotation around yAxis in radian
    _phi: 0,
    // Rotation around xAxis in radian
    _theta: 0,
    _mouseX: 0,
    _mouseY: 0,
    _rotateVelocity: new Vector2(),
    _panVelocity: new Vector2(),
    _distance: 500,
    _zoomSpeed: 0,
    _stillTimeout: 0,
    _animators: []
  };
}, function() {
  ["_mouseDownHandler", "_mouseWheelHandler", "_mouseMoveHandler", "_mouseUpHandler", "_pinchHandler", "_contextMenuHandler", "_update"].forEach(function(hdlName) {
    this[hdlName] = this[hdlName].bind(this);
  }, this);
}, {
  /**
   * Initialize.
   * Mouse event binding
   */
  init: function() {
    var zr = this.zr;
    if (zr) {
      zr.on("mousedown", this._mouseDownHandler);
      zr.on("globalout", this._mouseUpHandler);
      zr.on("mousewheel", this._mouseWheelHandler);
      zr.on("pinch", this._pinchHandler);
      zr.animation.on("frame", this._update);
      zr.dom.addEventListener("contextmenu", this._contextMenuHandler);
    }
  },
  /**
   * Dispose.
   * Mouse event unbinding
   */
  dispose: function() {
    var zr = this.zr;
    if (zr) {
      zr.off("mousedown", this._mouseDownHandler);
      zr.off("mousemove", this._mouseMoveHandler);
      zr.off("mouseup", this._mouseUpHandler);
      zr.off("mousewheel", this._mouseWheelHandler);
      zr.off("pinch", this._pinchHandler);
      zr.off("globalout", this._mouseUpHandler);
      zr.dom.removeEventListener("contextmenu", this._contextMenuHandler);
      zr.animation.off("frame", this._update);
    }
    this.stopAllAnimation();
  },
  /**
   * Get distance
   * @return {number}
   */
  getDistance: function() {
    return this._distance;
  },
  /**
   * Set distance
   * @param {number} distance
   */
  setDistance: function(distance) {
    this._distance = distance;
    this._needsUpdate = true;
  },
  /**
   * Get size of orthographic viewing volume
   * @return {number}
   */
  getOrthographicSize: function() {
    return this._orthoSize;
  },
  /**
   * Set size of orthographic viewing volume
   * @param {number} size
   */
  setOrthographicSize: function(size) {
    this._orthoSize = size;
    this._needsUpdate = true;
  },
  /**
   * Get alpha rotation
   * Alpha angle for top-down rotation. Positive to rotate to top.
   *
   * Which means camera rotation around x axis.
   */
  getAlpha: function() {
    return this._theta / Math.PI * 180;
  },
  /**
   * Get beta rotation
   * Beta angle for left-right rotation. Positive to rotate to right.
   *
   * Which means camera rotation around y axis.
   */
  getBeta: function() {
    return -this._phi / Math.PI * 180;
  },
  /**
   * Get control center
   * @return {Array.<number>}
   */
  getCenter: function() {
    return this._center.toArray();
  },
  /**
   * Set alpha rotation angle
   * @param {number} alpha
   */
  setAlpha: function(alpha) {
    alpha = Math.max(Math.min(this.maxAlpha, alpha), this.minAlpha);
    this._theta = alpha / 180 * Math.PI;
    this._needsUpdate = true;
  },
  /**
   * Set beta rotation angle
   * @param {number} beta
   */
  setBeta: function(beta) {
    beta = Math.max(Math.min(this.maxBeta, beta), this.minBeta);
    this._phi = -beta / 180 * Math.PI;
    this._needsUpdate = true;
  },
  /**
   * Set control center
   * @param {Array.<number>} center
   */
  setCenter: function(centerArr) {
    this._center.setArray(centerArr);
  },
  /**
   * @param {module:echarts-gl/core/ViewGL} viewGL
   */
  setViewGL: function(viewGL) {
    this.viewGL = viewGL;
  },
  /**
   * @return {clay.Camera}
   */
  getCamera: function() {
    return this.viewGL.camera;
  },
  setFromViewControlModel: function(viewControlModel, extraOpts) {
    extraOpts = extraOpts || {};
    var baseDistance = extraOpts.baseDistance || 0;
    var baseOrthoSize = extraOpts.baseOrthoSize || 1;
    var projection = viewControlModel.get("projection");
    if (projection !== "perspective" && projection !== "orthographic" && projection !== "isometric") {
      projection = "perspective";
    }
    this._projection = projection;
    this.viewGL.setProjection(projection);
    var targetDistance = viewControlModel.get("distance") + baseDistance;
    var targetOrthographicSize = viewControlModel.get("orthographicSize") + baseOrthoSize;
    [["damping", 0.8], ["autoRotate", false], ["autoRotateAfterStill", 3], ["autoRotateDirection", "cw"], ["autoRotateSpeed", 10], ["minDistance", 30], ["maxDistance", 400], ["minOrthographicSize", 30], ["maxOrthographicSize", 300], ["minAlpha", -90], ["maxAlpha", 90], ["minBeta", -Infinity], ["maxBeta", Infinity], ["rotateSensitivity", 1], ["zoomSensitivity", 1], ["panSensitivity", 1], ["panMouseButton", "left"], ["rotateMouseButton", "middle"]].forEach(function(prop) {
      this[prop[0]] = firstNotNull$3(viewControlModel.get(prop[0]), prop[1]);
    }, this);
    this.minDistance += baseDistance;
    this.maxDistance += baseDistance;
    this.minOrthographicSize += baseOrthoSize, this.maxOrthographicSize += baseOrthoSize;
    var ecModel = viewControlModel.ecModel;
    var animationOpts = {};
    ["animation", "animationDurationUpdate", "animationEasingUpdate"].forEach(function(key) {
      animationOpts[key] = firstNotNull$3(viewControlModel.get(key), ecModel && ecModel.get(key));
    });
    var alpha = firstNotNull$3(extraOpts.alpha, viewControlModel.get("alpha")) || 0;
    var beta = firstNotNull$3(extraOpts.beta, viewControlModel.get("beta")) || 0;
    var center = firstNotNull$3(extraOpts.center, viewControlModel.get("center")) || [0, 0, 0];
    if (animationOpts.animation && animationOpts.animationDurationUpdate > 0 && this._notFirst) {
      this.animateTo({
        alpha,
        beta,
        center,
        distance: targetDistance,
        orthographicSize: targetOrthographicSize,
        easing: animationOpts.animationEasingUpdate,
        duration: animationOpts.animationDurationUpdate
      });
    } else {
      this.setDistance(targetDistance);
      this.setAlpha(alpha);
      this.setBeta(beta);
      this.setCenter(center);
      this.setOrthographicSize(targetOrthographicSize);
    }
    this._notFirst = true;
    this._validateProperties();
  },
  _validateProperties: function() {
  },
  /**
   * @param {Object} opts
   * @param {number} opts.distance
   * @param {number} opts.alpha
   * @param {number} opts.beta
   * @param {number} opts.orthographicSize
   * @param {number} [opts.duration=1000]
   * @param {number} [opts.easing='linear']
   */
  animateTo: function(opts) {
    var zr = this.zr;
    var self2 = this;
    var obj = {};
    var target = {};
    if (opts.distance != null) {
      obj.distance = this.getDistance();
      target.distance = opts.distance;
    }
    if (opts.orthographicSize != null) {
      obj.orthographicSize = this.getOrthographicSize();
      target.orthographicSize = opts.orthographicSize;
    }
    if (opts.alpha != null) {
      obj.alpha = this.getAlpha();
      target.alpha = opts.alpha;
    }
    if (opts.beta != null) {
      obj.beta = this.getBeta();
      target.beta = opts.beta;
    }
    if (opts.center != null) {
      obj.center = this.getCenter();
      target.center = opts.center;
    }
    return this._addAnimator(zr.animation.animate(obj).when(opts.duration || 1e3, target).during(function() {
      if (obj.alpha != null) {
        self2.setAlpha(obj.alpha);
      }
      if (obj.beta != null) {
        self2.setBeta(obj.beta);
      }
      if (obj.distance != null) {
        self2.setDistance(obj.distance);
      }
      if (obj.center != null) {
        self2.setCenter(obj.center);
      }
      if (obj.orthographicSize != null) {
        self2.setOrthographicSize(obj.orthographicSize);
      }
      self2._needsUpdate = true;
    })).start(opts.easing || "linear");
  },
  /**
   * Stop all animation
   */
  stopAllAnimation: function() {
    for (var i = 0; i < this._animators.length; i++) {
      this._animators[i].stop();
    }
    this._animators.length = 0;
  },
  update: function() {
    this._needsUpdate = true;
    this._update(20);
  },
  _isAnimating: function() {
    return this._animators.length > 0;
  },
  /**
   * Call update each frame
   * @param  {number} deltaTime Frame time
   */
  _update: function(deltaTime) {
    if (this._rotating) {
      var radian = (this.autoRotateDirection === "cw" ? 1 : -1) * this.autoRotateSpeed / 180 * Math.PI;
      this._phi -= radian * deltaTime / 1e3;
      this._needsUpdate = true;
    } else if (this._rotateVelocity.len() > 0) {
      this._needsUpdate = true;
    }
    if (Math.abs(this._zoomSpeed) > 0.1 || this._panVelocity.len() > 0) {
      this._needsUpdate = true;
    }
    if (!this._needsUpdate) {
      return;
    }
    deltaTime = Math.min(deltaTime, 50);
    this._updateDistanceOrSize(deltaTime);
    this._updatePan(deltaTime);
    this._updateRotate(deltaTime);
    this._updateTransform();
    this.getCamera().update();
    this.zr && this.zr.refresh();
    this.trigger("update");
    this._needsUpdate = false;
  },
  _updateRotate: function(deltaTime) {
    var velocity = this._rotateVelocity;
    this._phi = velocity.y * deltaTime / 20 + this._phi;
    this._theta = velocity.x * deltaTime / 20 + this._theta;
    this.setAlpha(this.getAlpha());
    this.setBeta(this.getBeta());
    this._vectorDamping(velocity, Math.pow(this.damping, deltaTime / 16));
  },
  _updateDistanceOrSize: function(deltaTime) {
    if (this._projection === "perspective") {
      this._setDistance(this._distance + this._zoomSpeed * deltaTime / 20);
    } else {
      this._setOrthoSize(this._orthoSize + this._zoomSpeed * deltaTime / 20);
    }
    this._zoomSpeed *= Math.pow(this.damping, deltaTime / 16);
  },
  _setDistance: function(distance) {
    this._distance = Math.max(Math.min(distance, this.maxDistance), this.minDistance);
  },
  _setOrthoSize: function(size) {
    this._orthoSize = Math.max(Math.min(size, this.maxOrthographicSize), this.minOrthographicSize);
    var camera2 = this.getCamera();
    var cameraHeight = this._orthoSize;
    var cameraWidth = cameraHeight / this.viewGL.viewport.height * this.viewGL.viewport.width;
    camera2.left = -cameraWidth / 2;
    camera2.right = cameraWidth / 2;
    camera2.top = cameraHeight / 2;
    camera2.bottom = -cameraHeight / 2;
  },
  _updatePan: function(deltaTime) {
    var velocity = this._panVelocity;
    var len = this._distance;
    var target = this.getCamera();
    var yAxis = target.worldTransform.y;
    var xAxis = target.worldTransform.x;
    this._center.scaleAndAdd(xAxis, -velocity.x * len / 200).scaleAndAdd(yAxis, -velocity.y * len / 200);
    this._vectorDamping(velocity, 0);
  },
  _updateTransform: function() {
    var camera2 = this.getCamera();
    var dir = new Vector3();
    var theta = this._theta + Math.PI / 2;
    var phi = this._phi + Math.PI / 2;
    var r = Math.sin(theta);
    dir.x = r * Math.cos(phi);
    dir.y = -Math.cos(theta);
    dir.z = r * Math.sin(phi);
    camera2.position.copy(this._center).scaleAndAdd(dir, this._distance);
    camera2.rotation.identity().rotateY(-this._phi).rotateX(-this._theta);
  },
  _startCountingStill: function() {
    clearTimeout(this._stillTimeout);
    var time = this.autoRotateAfterStill;
    var self2 = this;
    if (!isNaN(time) && time > 0) {
      this._stillTimeout = setTimeout(function() {
        self2._rotating = true;
      }, time * 1e3);
    }
  },
  _vectorDamping: function(v, damping) {
    var speed = v.len();
    speed = speed * damping;
    if (speed < 1e-4) {
      speed = 0;
    }
    v.normalize().scale(speed);
  },
  _decomposeTransform: function() {
    if (!this.getCamera()) {
      return;
    }
    this.getCamera().updateWorldTransform();
    var forward = this.getCamera().worldTransform.z;
    var alpha = Math.asin(forward.y);
    var beta = Math.atan2(forward.x, forward.z);
    this._theta = alpha;
    this._phi = -beta;
    this.setBeta(this.getBeta());
    this.setAlpha(this.getAlpha());
    if (this.getCamera().aspect) {
      this._setDistance(this.getCamera().position.dist(this._center));
    } else {
      this._setOrthoSize(this.getCamera().top - this.getCamera().bottom);
    }
  },
  _mouseDownHandler: function(e2) {
    if (e2.target) {
      return;
    }
    if (this._isAnimating()) {
      return;
    }
    var x = e2.offsetX;
    var y = e2.offsetY;
    if (this.viewGL && !this.viewGL.containPoint(x, y)) {
      return;
    }
    this.zr.on("mousemove", this._mouseMoveHandler);
    this.zr.on("mouseup", this._mouseUpHandler);
    if (e2.event.targetTouches) {
      if (e2.event.targetTouches.length === 1) {
        this._mode = "rotate";
      }
    } else {
      if (e2.event.button === MOUSE_BUTTON_KEY_MAP[this.rotateMouseButton]) {
        this._mode = "rotate";
      } else if (e2.event.button === MOUSE_BUTTON_KEY_MAP[this.panMouseButton]) {
        this._mode = "pan";
      } else {
        this._mode = "";
      }
    }
    this._rotateVelocity.set(0, 0);
    this._rotating = false;
    if (this.autoRotate) {
      this._startCountingStill();
    }
    this._mouseX = e2.offsetX;
    this._mouseY = e2.offsetY;
  },
  _mouseMoveHandler: function(e2) {
    if (e2.target && e2.target.__isGLToZRProxy) {
      return;
    }
    if (this._isAnimating()) {
      return;
    }
    var panSensitivity = convertToArray(this.panSensitivity);
    var rotateSensitivity = convertToArray(this.rotateSensitivity);
    if (this._mode === "rotate") {
      this._rotateVelocity.y = (e2.offsetX - this._mouseX) / this.zr.getHeight() * 2 * rotateSensitivity[0];
      this._rotateVelocity.x = (e2.offsetY - this._mouseY) / this.zr.getWidth() * 2 * rotateSensitivity[1];
    } else if (this._mode === "pan") {
      this._panVelocity.x = (e2.offsetX - this._mouseX) / this.zr.getWidth() * panSensitivity[0] * 400;
      this._panVelocity.y = (-e2.offsetY + this._mouseY) / this.zr.getHeight() * panSensitivity[1] * 400;
    }
    this._mouseX = e2.offsetX;
    this._mouseY = e2.offsetY;
    e2.event.preventDefault();
  },
  _mouseWheelHandler: function(e2) {
    if (this._isAnimating()) {
      return;
    }
    var delta = e2.event.wheelDelta || -e2.event.detail;
    this._zoomHandler(e2, delta);
  },
  _pinchHandler: function(e2) {
    if (this._isAnimating()) {
      return;
    }
    this._zoomHandler(e2, e2.pinchScale > 1 ? 1 : -1);
    this._mode = "";
  },
  _zoomHandler: function(e2, delta) {
    if (delta === 0) {
      return;
    }
    var x = e2.offsetX;
    var y = e2.offsetY;
    if (this.viewGL && !this.viewGL.containPoint(x, y)) {
      return;
    }
    var speed;
    if (this._projection === "perspective") {
      speed = Math.max(Math.max(Math.min(this._distance - this.minDistance, this.maxDistance - this._distance)) / 20, 0.5);
    } else {
      speed = Math.max(Math.max(Math.min(this._orthoSize - this.minOrthographicSize, this.maxOrthographicSize - this._orthoSize)) / 20, 0.5);
    }
    this._zoomSpeed = (delta > 0 ? -1 : 1) * speed * this.zoomSensitivity;
    this._rotating = false;
    if (this.autoRotate && this._mode === "rotate") {
      this._startCountingStill();
    }
    e2.event.preventDefault();
  },
  _mouseUpHandler: function() {
    this.zr.off("mousemove", this._mouseMoveHandler);
    this.zr.off("mouseup", this._mouseUpHandler);
  },
  _isRightMouseButtonUsed: function() {
    return this.rotateMouseButton === "right" || this.panMouseButton === "right";
  },
  _contextMenuHandler: function(e2) {
    if (this._isRightMouseButtonUsed()) {
      e2.preventDefault();
    }
  },
  _addAnimator: function(animator) {
    var animators = this._animators;
    animators.push(animator);
    animator.done(function() {
      var idx = animators.indexOf(animator);
      if (idx >= 0) {
        animators.splice(idx, 1);
      }
    });
    return animator;
  }
});
Object.defineProperty(OrbitControl.prototype, "autoRotate", {
  get: function(val) {
    return this._autoRotate;
  },
  set: function(val) {
    this._autoRotate = val;
    this._rotating = val;
  }
});
const dynamicConvertMixin = {
  convertToDynamicArray: function(clear) {
    if (clear) {
      this.resetOffset();
    }
    var attributes = this.attributes;
    for (var name in attributes) {
      if (clear || !attributes[name].value) {
        attributes[name].value = [];
      } else {
        attributes[name].value = Array.prototype.slice.call(attributes[name].value);
      }
    }
    if (clear || !this.indices) {
      this.indices = [];
    } else {
      this.indices = Array.prototype.slice.call(this.indices);
    }
  },
  convertToTypedArray: function() {
    var attributes = this.attributes;
    for (var name in attributes) {
      if (attributes[name].value && attributes[name].value.length > 0) {
        attributes[name].value = new Float32Array(attributes[name].value);
      } else {
        attributes[name].value = null;
      }
    }
    if (this.indices && this.indices.length > 0) {
      this.indices = this.vertexCount > 65535 ? new Uint32Array(this.indices) : new Uint16Array(this.indices);
    }
    this.dirty();
  }
};
const glmatrix = {
  vec2: vec2$3,
  vec3: vec3$f,
  vec4: vec4$1,
  mat3: mat3$1,
  mat4: mat4$2
};
var vec3$e = glmatrix.vec3;
var sampleLinePoints$1 = [[0, 0], [1, 1]];
var LinesGeometry$2 = Geometry.extend(
  function() {
    return {
      segmentScale: 1,
      dynamic: true,
      /**
       * Need to use mesh to expand lines if lineWidth > MAX_LINE_WIDTH
       */
      useNativeLine: true,
      attributes: {
        position: new Geometry.Attribute("position", "float", 3, "POSITION"),
        positionPrev: new Geometry.Attribute("positionPrev", "float", 3),
        positionNext: new Geometry.Attribute("positionNext", "float", 3),
        prevPositionPrev: new Geometry.Attribute("prevPositionPrev", "float", 3),
        prevPosition: new Geometry.Attribute("prevPosition", "float", 3),
        prevPositionNext: new Geometry.Attribute("prevPositionNext", "float", 3),
        offset: new Geometry.Attribute("offset", "float", 1),
        color: new Geometry.Attribute("color", "float", 4, "COLOR")
      }
    };
  },
  /** @lends module: echarts-gl/util/geometry/LinesGeometry.prototype */
  {
    /**
     * Reset offset
     */
    resetOffset: function() {
      this._vertexOffset = 0;
      this._triangleOffset = 0;
      this._itemVertexOffsets = [];
    },
    /**
     * @param {number} nVertex
     */
    setVertexCount: function(nVertex) {
      var attributes = this.attributes;
      if (this.vertexCount !== nVertex) {
        attributes.position.init(nVertex);
        attributes.color.init(nVertex);
        if (!this.useNativeLine) {
          attributes.positionPrev.init(nVertex);
          attributes.positionNext.init(nVertex);
          attributes.offset.init(nVertex);
        }
        if (nVertex > 65535) {
          if (this.indices instanceof Uint16Array) {
            this.indices = new Uint32Array(this.indices);
          }
        } else {
          if (this.indices instanceof Uint32Array) {
            this.indices = new Uint16Array(this.indices);
          }
        }
      }
    },
    /**
     * @param {number} nTriangle
     */
    setTriangleCount: function(nTriangle) {
      if (this.triangleCount !== nTriangle) {
        if (nTriangle === 0) {
          this.indices = null;
        } else {
          this.indices = this.vertexCount > 65535 ? new Uint32Array(nTriangle * 3) : new Uint16Array(nTriangle * 3);
        }
      }
    },
    _getCubicCurveApproxStep: function(p02, p12, p22, p3) {
      var len = vec3$e.dist(p02, p12) + vec3$e.dist(p22, p12) + vec3$e.dist(p3, p22);
      var step = 1 / (len + 1) * this.segmentScale;
      return step;
    },
    /**
     * Get vertex count of cubic curve
     * @param {Array.<number>} p0
     * @param {Array.<number>} p1
     * @param {Array.<number>} p2
     * @param {Array.<number>} p3
     * @return number
     */
    getCubicCurveVertexCount: function(p02, p12, p22, p3) {
      var step = this._getCubicCurveApproxStep(p02, p12, p22, p3);
      var segCount = Math.ceil(1 / step);
      if (!this.useNativeLine) {
        return segCount * 2 + 2;
      } else {
        return segCount * 2;
      }
    },
    /**
     * Get face count of cubic curve
     * @param {Array.<number>} p0
     * @param {Array.<number>} p1
     * @param {Array.<number>} p2
     * @param {Array.<number>} p3
     * @return number
     */
    getCubicCurveTriangleCount: function(p02, p12, p22, p3) {
      var step = this._getCubicCurveApproxStep(p02, p12, p22, p3);
      var segCount = Math.ceil(1 / step);
      if (!this.useNativeLine) {
        return segCount * 2;
      } else {
        return 0;
      }
    },
    /**
     * Get vertex count of line
     * @return {number}
     */
    getLineVertexCount: function() {
      return this.getPolylineVertexCount(sampleLinePoints$1);
    },
    /**
     * Get face count of line
     * @return {number}
     */
    getLineTriangleCount: function() {
      return this.getPolylineTriangleCount(sampleLinePoints$1);
    },
    /**
     * Get how many vertices will polyline take.
     * @type {number|Array} points Can be a 1d/2d list of points, or a number of points amount.
     * @return {number}
     */
    getPolylineVertexCount: function(points) {
      var pointsLen;
      if (typeof points === "number") {
        pointsLen = points;
      } else {
        var is2DArray = typeof points[0] !== "number";
        pointsLen = is2DArray ? points.length : points.length / 3;
      }
      return !this.useNativeLine ? (pointsLen - 1) * 2 + 2 : (pointsLen - 1) * 2;
    },
    /**
     * Get how many triangles will polyline take.
     * @type {number|Array} points Can be a 1d/2d list of points, or a number of points amount.
     * @return {number}
     */
    getPolylineTriangleCount: function(points) {
      var pointsLen;
      if (typeof points === "number") {
        pointsLen = points;
      } else {
        var is2DArray = typeof points[0] !== "number";
        pointsLen = is2DArray ? points.length : points.length / 3;
      }
      return !this.useNativeLine ? Math.max(pointsLen - 1, 0) * 2 : 0;
    },
    /**
     * Add a cubic curve
     * @param {Array.<number>} p0
     * @param {Array.<number>} p1
     * @param {Array.<number>} p2
     * @param {Array.<number>} p3
     * @param {Array.<number>} color
     * @param {number} [lineWidth=1]
     */
    addCubicCurve: function(p02, p12, p22, p3, color, lineWidth) {
      if (lineWidth == null) {
        lineWidth = 1;
      }
      var x0 = p02[0], y0 = p02[1], z0 = p02[2];
      var x1 = p12[0], y1 = p12[1], z1 = p12[2];
      var x2 = p22[0], y2 = p22[1], z2 = p22[2];
      var x3 = p3[0], y3 = p3[1], z3 = p3[2];
      var step = this._getCubicCurveApproxStep(p02, p12, p22, p3);
      var step2 = step * step;
      var step3 = step2 * step;
      var pre1 = 3 * step;
      var pre2 = 3 * step2;
      var pre4 = 6 * step2;
      var pre5 = 6 * step3;
      var tmp1x = x0 - x1 * 2 + x2;
      var tmp1y = y0 - y1 * 2 + y2;
      var tmp1z = z0 - z1 * 2 + z2;
      var tmp2x = (x1 - x2) * 3 - x0 + x3;
      var tmp2y = (y1 - y2) * 3 - y0 + y3;
      var tmp2z = (z1 - z2) * 3 - z0 + z3;
      var fx = x0;
      var fy = y0;
      var fz = z0;
      var dfx = (x1 - x0) * pre1 + tmp1x * pre2 + tmp2x * step3;
      var dfy = (y1 - y0) * pre1 + tmp1y * pre2 + tmp2y * step3;
      var dfz = (z1 - z0) * pre1 + tmp1z * pre2 + tmp2z * step3;
      var ddfx = tmp1x * pre4 + tmp2x * pre5;
      var ddfy = tmp1y * pre4 + tmp2y * pre5;
      var ddfz = tmp1z * pre4 + tmp2z * pre5;
      var dddfx = tmp2x * pre5;
      var dddfy = tmp2y * pre5;
      var dddfz = tmp2z * pre5;
      var t = 0;
      var k = 0;
      var segCount = Math.ceil(1 / step);
      var points = new Float32Array((segCount + 1) * 3);
      var points = [];
      var offset = 0;
      for (var k = 0; k < segCount + 1; k++) {
        points[offset++] = fx;
        points[offset++] = fy;
        points[offset++] = fz;
        fx += dfx;
        fy += dfy;
        fz += dfz;
        dfx += ddfx;
        dfy += ddfy;
        dfz += ddfz;
        ddfx += dddfx;
        ddfy += dddfy;
        ddfz += dddfz;
        t += step;
        if (t > 1) {
          fx = dfx > 0 ? Math.min(fx, x3) : Math.max(fx, x3);
          fy = dfy > 0 ? Math.min(fy, y3) : Math.max(fy, y3);
          fz = dfz > 0 ? Math.min(fz, z3) : Math.max(fz, z3);
        }
      }
      return this.addPolyline(points, color, lineWidth);
    },
    /**
     * Add a straight line
     * @param {Array.<number>} p0
     * @param {Array.<number>} p1
     * @param {Array.<number>} color
     * @param {number} [lineWidth=1]
     */
    addLine: function(p02, p12, color, lineWidth) {
      return this.addPolyline([p02, p12], color, lineWidth);
    },
    /**
     * Add a straight line
     * @param {Array.<Array> | Array.<number>} points
     * @param {Array.<number> | Array.<Array>} color
     * @param {number} [lineWidth=1]
     * @param {number} [startOffset=0]
     * @param {number} [pointsCount] Default to be amount of points in the first argument
     */
    addPolyline: function(points, color, lineWidth, startOffset, pointsCount) {
      if (!points.length) {
        return;
      }
      var is2DArray = typeof points[0] !== "number";
      if (pointsCount == null) {
        pointsCount = is2DArray ? points.length : points.length / 3;
      }
      if (pointsCount < 2) {
        return;
      }
      if (startOffset == null) {
        startOffset = 0;
      }
      if (lineWidth == null) {
        lineWidth = 1;
      }
      this._itemVertexOffsets.push(this._vertexOffset);
      var is2DArray = typeof points[0] !== "number";
      var notSharingColor = is2DArray ? typeof color[0] !== "number" : color.length / 4 === pointsCount;
      var positionAttr = this.attributes.position;
      var positionPrevAttr = this.attributes.positionPrev;
      var positionNextAttr = this.attributes.positionNext;
      var colorAttr = this.attributes.color;
      var offsetAttr = this.attributes.offset;
      var indices = this.indices;
      var vertexOffset = this._vertexOffset;
      var point;
      var pointColor;
      lineWidth = Math.max(lineWidth, 0.01);
      for (var k = startOffset; k < pointsCount; k++) {
        if (is2DArray) {
          point = points[k];
          if (notSharingColor) {
            pointColor = color[k];
          } else {
            pointColor = color;
          }
        } else {
          var k3 = k * 3;
          point = point || [];
          point[0] = points[k3];
          point[1] = points[k3 + 1];
          point[2] = points[k3 + 2];
          if (notSharingColor) {
            var k4 = k * 4;
            pointColor = pointColor || [];
            pointColor[0] = color[k4];
            pointColor[1] = color[k4 + 1];
            pointColor[2] = color[k4 + 2];
            pointColor[3] = color[k4 + 3];
          } else {
            pointColor = color;
          }
        }
        if (!this.useNativeLine) {
          if (k < pointsCount - 1) {
            positionPrevAttr.set(vertexOffset + 2, point);
            positionPrevAttr.set(vertexOffset + 3, point);
          }
          if (k > 0) {
            positionNextAttr.set(vertexOffset - 2, point);
            positionNextAttr.set(vertexOffset - 1, point);
          }
          positionAttr.set(vertexOffset, point);
          positionAttr.set(vertexOffset + 1, point);
          colorAttr.set(vertexOffset, pointColor);
          colorAttr.set(vertexOffset + 1, pointColor);
          offsetAttr.set(vertexOffset, lineWidth / 2);
          offsetAttr.set(vertexOffset + 1, -lineWidth / 2);
          vertexOffset += 2;
        } else {
          if (k > 1) {
            positionAttr.copy(vertexOffset, vertexOffset - 1);
            colorAttr.copy(vertexOffset, vertexOffset - 1);
            vertexOffset++;
          }
        }
        if (!this.useNativeLine) {
          if (k > 0) {
            var idx3 = this._triangleOffset * 3;
            var indices = this.indices;
            indices[idx3] = vertexOffset - 4;
            indices[idx3 + 1] = vertexOffset - 3;
            indices[idx3 + 2] = vertexOffset - 2;
            indices[idx3 + 3] = vertexOffset - 3;
            indices[idx3 + 4] = vertexOffset - 1;
            indices[idx3 + 5] = vertexOffset - 2;
            this._triangleOffset += 2;
          }
        } else {
          colorAttr.set(vertexOffset, pointColor);
          positionAttr.set(vertexOffset, point);
          vertexOffset++;
        }
      }
      if (!this.useNativeLine) {
        var start = this._vertexOffset;
        var end = this._vertexOffset + pointsCount * 2;
        positionPrevAttr.copy(start, start + 2);
        positionPrevAttr.copy(start + 1, start + 3);
        positionNextAttr.copy(end - 1, end - 3);
        positionNextAttr.copy(end - 2, end - 4);
      }
      this._vertexOffset = vertexOffset;
      return this._vertexOffset;
    },
    /**
     * Set color of single line.
     */
    setItemColor: function(idx, color) {
      var startOffset = this._itemVertexOffsets[idx];
      var endOffset = idx < this._itemVertexOffsets.length - 1 ? this._itemVertexOffsets[idx + 1] : this._vertexOffset;
      for (var i = startOffset; i < endOffset; i++) {
        this.attributes.color.set(i, color);
      }
      this.dirty("color");
    },
    /**
     * @return {number}
     */
    currentTriangleOffset: function() {
      return this._triangleOffset;
    },
    /**
     * @return {number}
     */
    currentVertexOffset: function() {
      return this._vertexOffset;
    }
  }
);
defaults(LinesGeometry$2.prototype, dynamicConvertMixin);
function ZRTextureAtlasSurfaceNode(zr, offsetX, offsetY, width, height, gap, dpr) {
  this._zr = zr;
  this._x = 0;
  this._y = 0;
  this._rowHeight = 0;
  this.width = width;
  this.height = height;
  this.offsetX = offsetX;
  this.offsetY = offsetY;
  this.dpr = dpr;
  this.gap = gap;
}
ZRTextureAtlasSurfaceNode.prototype = {
  constructor: ZRTextureAtlasSurfaceNode,
  clear: function() {
    this._x = 0;
    this._y = 0;
    this._rowHeight = 0;
  },
  /**
   * Add shape to atlas
   * @param {module:zrender/graphic/Displayable} shape
   * @param {number} width
   * @param {number} height
   * @return {Array}
   */
  add: function(el, width, height) {
    var rect = el.getBoundingRect();
    if (width == null) {
      width = rect.width;
    }
    if (height == null) {
      height = rect.height;
    }
    width *= this.dpr;
    height *= this.dpr;
    this._fitElement(el, width, height);
    var x = this._x;
    var y = this._y;
    var canvasWidth = this.width * this.dpr;
    var canvasHeight = this.height * this.dpr;
    var gap = this.gap;
    if (x + width + gap > canvasWidth) {
      x = this._x = 0;
      y += this._rowHeight + gap;
      this._y = y;
      this._rowHeight = 0;
    }
    this._x += width + gap;
    this._rowHeight = Math.max(this._rowHeight, height);
    if (y + height + gap > canvasHeight) {
      return null;
    }
    el.x += this.offsetX * this.dpr + x;
    el.y += this.offsetY * this.dpr + y;
    this._zr.add(el);
    var coordsOffset = [this.offsetX / this.width, this.offsetY / this.height];
    var coords = [[x / canvasWidth + coordsOffset[0], y / canvasHeight + coordsOffset[1]], [(x + width) / canvasWidth + coordsOffset[0], (y + height) / canvasHeight + coordsOffset[1]]];
    return coords;
  },
  /**
   * Fit element size by correct its position and scaling
   * @param {module:zrender/graphic/Displayable} el
   * @param {number} spriteWidth
   * @param {number} spriteHeight
   */
  _fitElement: function(el, spriteWidth, spriteHeight) {
    var rect = el.getBoundingRect();
    var scaleX = spriteWidth / rect.width;
    var scaleY = spriteHeight / rect.height;
    el.x = -rect.x * scaleX;
    el.y = -rect.y * scaleY;
    el.scaleX = scaleX;
    el.scaleY = scaleY;
    el.update();
  }
};
function ZRTextureAtlasSurface(opt) {
  opt = opt || {};
  opt.width = opt.width || 512;
  opt.height = opt.height || 512;
  opt.devicePixelRatio = opt.devicePixelRatio || 1;
  opt.gap = opt.gap == null ? 2 : opt.gap;
  var canvas = document.createElement("canvas");
  canvas.width = opt.width * opt.devicePixelRatio;
  canvas.height = opt.height * opt.devicePixelRatio;
  this._canvas = canvas;
  this._texture = new Texture2D({
    image: canvas,
    flipY: false
  });
  var self2 = this;
  this._zr = init(canvas);
  var oldRefreshImmediately = this._zr.refreshImmediately;
  this._zr.refreshImmediately = function() {
    oldRefreshImmediately.call(this);
    self2._texture.dirty();
    self2.onupdate && self2.onupdate();
  };
  this._dpr = opt.devicePixelRatio;
  this._coords = {};
  this.onupdate = opt.onupdate;
  this._gap = opt.gap;
  this._textureAtlasNodes = [new ZRTextureAtlasSurfaceNode(this._zr, 0, 0, opt.width, opt.height, this._gap, this._dpr)];
  this._nodeWidth = opt.width;
  this._nodeHeight = opt.height;
  this._currentNodeIdx = 0;
}
ZRTextureAtlasSurface.prototype = {
  /**
   * Clear the texture atlas
   */
  clear: function() {
    for (var i = 0; i < this._textureAtlasNodes.length; i++) {
      this._textureAtlasNodes[i].clear();
    }
    this._currentNodeIdx = 0;
    this._zr.clear();
    this._coords = {};
  },
  /**
   * @return {number}
   */
  getWidth: function() {
    return this._width;
  },
  /**
   * @return {number}
   */
  getHeight: function() {
    return this._height;
  },
  /**
   * @return {number}
   */
  getTexture: function() {
    return this._texture;
  },
  /**
   * @return {number}
   */
  getDevicePixelRatio: function() {
    return this._dpr;
  },
  getZr: function() {
    return this._zr;
  },
  _getCurrentNode: function() {
    return this._textureAtlasNodes[this._currentNodeIdx];
  },
  _expand: function() {
    this._currentNodeIdx++;
    if (this._textureAtlasNodes[this._currentNodeIdx]) {
      return this._textureAtlasNodes[this._currentNodeIdx];
    }
    var maxSize = 4096 / this._dpr;
    var textureAtlasNodes = this._textureAtlasNodes;
    var nodeLen = textureAtlasNodes.length;
    var offsetX = nodeLen * this._nodeWidth % maxSize;
    var offsetY = Math.floor(nodeLen * this._nodeWidth / maxSize) * this._nodeHeight;
    if (offsetY >= maxSize) {
      return;
    }
    var width = (offsetX + this._nodeWidth) * this._dpr;
    var height = (offsetY + this._nodeHeight) * this._dpr;
    try {
      this._zr.resize({
        width,
        height
      });
    } catch (e2) {
      this._canvas.width = width;
      this._canvas.height = height;
    }
    var newNode = new ZRTextureAtlasSurfaceNode(this._zr, offsetX, offsetY, this._nodeWidth, this._nodeHeight, this._gap, this._dpr);
    this._textureAtlasNodes.push(newNode);
    return newNode;
  },
  add: function(el, width, height) {
    if (this._coords[el.id]) {
      return this._coords[el.id];
    }
    var coords = this._getCurrentNode().add(el, width, height);
    if (!coords) {
      var newNode = this._expand();
      if (!newNode) {
        return;
      }
      coords = newNode.add(el, width, height);
    }
    this._coords[el.id] = coords;
    return coords;
  },
  /**
   * Get coord scale after texture atlas is expanded.
   * @return {Array.<number>}
   */
  getCoordsScale: function() {
    var dpr = this._dpr;
    return [this._nodeWidth / this._canvas.width * dpr, this._nodeHeight / this._canvas.height * dpr];
  },
  /**
   * Get texture coords of sprite image
   * @param  {string} id Image id
   * @return {Array}
   */
  getCoords: function(id) {
    return this._coords[id];
  },
  dispose: function() {
    this._zr.dispose();
  }
};
function SceneHelper() {
}
SceneHelper.prototype = {
  constructor: SceneHelper,
  setScene: function(scene) {
    this._scene = scene;
    if (this._skybox) {
      this._skybox.attachScene(this._scene);
    }
  },
  initLight: function(rootNode) {
    this._lightRoot = rootNode;
    this.mainLight = new graphicGL.DirectionalLight({
      shadowBias: 5e-3
    });
    this.ambientLight = new graphicGL.AmbientLight();
    rootNode.add(this.mainLight);
    rootNode.add(this.ambientLight);
  },
  dispose: function() {
    if (this._lightRoot) {
      this._lightRoot.remove(this.mainLight);
      this._lightRoot.remove(this.ambientLight);
    }
  },
  updateLight: function(componentModel) {
    var mainLight = this.mainLight;
    var ambientLight = this.ambientLight;
    var lightModel = componentModel.getModel("light");
    var mainLightModel = lightModel.getModel("main");
    var ambientLightModel = lightModel.getModel("ambient");
    mainLight.intensity = mainLightModel.get("intensity");
    ambientLight.intensity = ambientLightModel.get("intensity");
    mainLight.color = graphicGL.parseColor(mainLightModel.get("color")).slice(0, 3);
    ambientLight.color = graphicGL.parseColor(ambientLightModel.get("color")).slice(0, 3);
    var alpha = mainLightModel.get("alpha") || 0;
    var beta = mainLightModel.get("beta") || 0;
    mainLight.position.setArray(graphicGL.directionFromAlphaBeta(alpha, beta));
    mainLight.lookAt(graphicGL.Vector3.ZERO);
    mainLight.castShadow = mainLightModel.get("shadow");
    mainLight.shadowResolution = graphicGL.getShadowResolution(mainLightModel.get("shadowQuality"));
  },
  updateAmbientCubemap: function(renderer, componentModel, api) {
    var ambientCubemapModel = componentModel.getModel("light.ambientCubemap");
    var textureUrl = ambientCubemapModel.get("texture");
    if (textureUrl) {
      this._cubemapLightsCache = this._cubemapLightsCache || {};
      var lights = this._cubemapLightsCache[textureUrl];
      if (!lights) {
        var self2 = this;
        lights = this._cubemapLightsCache[textureUrl] = graphicGL.createAmbientCubemap(ambientCubemapModel.option, renderer, api, function() {
          if (self2._isSkyboxFromAmbientCubemap) {
            self2._skybox.setEnvironmentMap(lights.specular.cubemap);
          }
          api.getZr().refresh();
        });
      }
      this._lightRoot.add(lights.diffuse);
      this._lightRoot.add(lights.specular);
      this._currentCubemapLights = lights;
    } else if (this._currentCubemapLights) {
      this._lightRoot.remove(this._currentCubemapLights.diffuse);
      this._lightRoot.remove(this._currentCubemapLights.specular);
      this._currentCubemapLights = null;
    }
  },
  updateSkybox: function(renderer, componentModel, api) {
    var environmentUrl = componentModel.get("environment");
    var self2 = this;
    function getSkybox() {
      self2._skybox = self2._skybox || new Skybox();
      return self2._skybox;
    }
    var skybox = getSkybox();
    if (environmentUrl && environmentUrl !== "none") {
      if (environmentUrl === "auto") {
        this._isSkyboxFromAmbientCubemap = true;
        if (this._currentCubemapLights) {
          var cubemap = this._currentCubemapLights.specular.cubemap;
          skybox.setEnvironmentMap(cubemap);
          if (this._scene) {
            skybox.attachScene(this._scene);
          }
          skybox.material.set("lod", 3);
        } else if (this._skybox) {
          this._skybox.detachScene();
        }
      } else if (typeof environmentUrl === "object" && environmentUrl.colorStops || typeof environmentUrl === "string" && parse$1(environmentUrl)) {
        this._isSkyboxFromAmbientCubemap = false;
        var texture = new graphicGL.Texture2D({
          anisotropic: 8,
          flipY: false
        });
        skybox.setEnvironmentMap(texture);
        var canvas = texture.image = document.createElement("canvas");
        canvas.width = canvas.height = 16;
        var ctx = canvas.getContext("2d");
        var rect = new Rect({
          shape: {
            x: 0,
            y: 0,
            width: 16,
            height: 16
          },
          style: {
            fill: environmentUrl
          }
        });
        brushSingle(ctx, rect);
        skybox.attachScene(this._scene);
      } else {
        this._isSkyboxFromAmbientCubemap = false;
        var texture = graphicGL.loadTexture(environmentUrl, api, {
          anisotropic: 8,
          flipY: false
        });
        skybox.setEnvironmentMap(texture);
        skybox.attachScene(this._scene);
      }
    } else {
      if (this._skybox) {
        this._skybox.detachScene(this._scene);
      }
      this._skybox = null;
    }
    var coordSys = componentModel.coordinateSystem;
    if (this._skybox) {
      if (coordSys && coordSys.viewGL && environmentUrl !== "auto" && !(environmentUrl.match && environmentUrl.match(/.hdr$/))) {
        var srgbDefineMethod = coordSys.viewGL.isLinearSpace() ? "define" : "undefine";
        this._skybox.material[srgbDefineMethod]("fragment", "SRGB_DECODE");
      } else {
        this._skybox.material.undefine("fragment", "SRGB_DECODE");
      }
    }
  }
};
var vec3$d = glmatrix.vec3;
var QuadsGeometry = Geometry.extend(
  function() {
    return {
      segmentScale: 1,
      /**
       * Need to use mesh to expand lines if lineWidth > MAX_LINE_WIDTH
       */
      useNativeLine: true,
      attributes: {
        position: new Geometry.Attribute("position", "float", 3, "POSITION"),
        normal: new Geometry.Attribute("normal", "float", 3, "NORMAL"),
        color: new Geometry.Attribute("color", "float", 4, "COLOR")
      }
    };
  },
  /** @lends module: echarts-gl/util/geometry/QuadsGeometry.prototype */
  {
    /**
     * Reset offset
     */
    resetOffset: function() {
      this._vertexOffset = 0;
      this._faceOffset = 0;
    },
    /**
     * @param {number} nQuad
     */
    setQuadCount: function(nQuad) {
      var attributes = this.attributes;
      var vertexCount = this.getQuadVertexCount() * nQuad;
      var triangleCount = this.getQuadTriangleCount() * nQuad;
      if (this.vertexCount !== vertexCount) {
        attributes.position.init(vertexCount);
        attributes.normal.init(vertexCount);
        attributes.color.init(vertexCount);
      }
      if (this.triangleCount !== triangleCount) {
        this.indices = vertexCount > 65535 ? new Uint32Array(triangleCount * 3) : new Uint16Array(triangleCount * 3);
      }
    },
    getQuadVertexCount: function() {
      return 4;
    },
    getQuadTriangleCount: function() {
      return 2;
    },
    /**
     * Add a quad, which in following order:
     * 0-----1
     * 3-----2
     */
    addQuad: function() {
      var a = vec3$d.create();
      var b = vec3$d.create();
      var normal2 = vec3$d.create();
      var indices = [0, 3, 1, 3, 2, 1];
      return function(coords, color) {
        var positionAttr = this.attributes.position;
        var normalAttr = this.attributes.normal;
        var colorAttr = this.attributes.color;
        vec3$d.sub(a, coords[1], coords[0]);
        vec3$d.sub(b, coords[2], coords[1]);
        vec3$d.cross(normal2, a, b);
        vec3$d.normalize(normal2, normal2);
        for (var i = 0; i < 4; i++) {
          positionAttr.set(this._vertexOffset + i, coords[i]);
          colorAttr.set(this._vertexOffset + i, color);
          normalAttr.set(this._vertexOffset + i, normal2);
        }
        var idx = this._faceOffset * 3;
        for (var i = 0; i < 6; i++) {
          this.indices[idx + i] = indices[i] + this._vertexOffset;
        }
        this._vertexOffset += 4;
        this._faceOffset += 2;
      };
    }()
  }
);
defaults(QuadsGeometry.prototype, dynamicConvertMixin);
var firstNotNull$2 = retrieve.firstNotNull;
var dimIndicesMap$2 = {
  // Left to right
  x: 0,
  // Far to near
  y: 2,
  // Bottom to up
  z: 1
};
function updateFacePlane(node, plane, otherAxis, dir) {
  var coord = [0, 0, 0];
  var distance = dir < 0 ? otherAxis.getExtentMin() : otherAxis.getExtentMax();
  coord[dimIndicesMap$2[otherAxis.dim]] = distance;
  node.position.setArray(coord);
  node.rotation.identity();
  plane.distance = -Math.abs(distance);
  plane.normal.set(0, 0, 0);
  if (otherAxis.dim === "x") {
    node.rotation.rotateY(dir * Math.PI / 2);
    plane.normal.x = -dir;
  } else if (otherAxis.dim === "z") {
    node.rotation.rotateX(-dir * Math.PI / 2);
    plane.normal.y = -dir;
  } else {
    if (dir > 0) {
      node.rotation.rotateY(Math.PI);
    }
    plane.normal.z = -dir;
  }
}
function Grid3DFace(faceInfo, linesMaterial, quadsMaterial) {
  this.rootNode = new graphicGL.Node();
  var linesMesh = new graphicGL.Mesh({
    geometry: new LinesGeometry$2({
      useNativeLine: false
    }),
    material: linesMaterial,
    castShadow: false,
    ignorePicking: true,
    $ignorePicking: true,
    renderOrder: 1
  });
  var quadsMesh = new graphicGL.Mesh({
    geometry: new QuadsGeometry(),
    material: quadsMaterial,
    castShadow: false,
    culling: false,
    ignorePicking: true,
    $ignorePicking: true,
    renderOrder: 0
  });
  this.rootNode.add(quadsMesh);
  this.rootNode.add(linesMesh);
  this.faceInfo = faceInfo;
  this.plane = new graphicGL.Plane();
  this.linesMesh = linesMesh;
  this.quadsMesh = quadsMesh;
}
Grid3DFace.prototype.update = function(grid3DModel, ecModel, api) {
  var cartesian = grid3DModel.coordinateSystem;
  var axes = [cartesian.getAxis(this.faceInfo[0]), cartesian.getAxis(this.faceInfo[1])];
  var lineGeometry = this.linesMesh.geometry;
  var quadsGeometry = this.quadsMesh.geometry;
  lineGeometry.convertToDynamicArray(true);
  quadsGeometry.convertToDynamicArray(true);
  this._updateSplitLines(lineGeometry, axes, grid3DModel, api);
  this._udpateSplitAreas(quadsGeometry, axes, grid3DModel, api);
  lineGeometry.convertToTypedArray();
  quadsGeometry.convertToTypedArray();
  var otherAxis = cartesian.getAxis(this.faceInfo[2]);
  updateFacePlane(this.rootNode, this.plane, otherAxis, this.faceInfo[3]);
};
Grid3DFace.prototype._updateSplitLines = function(geometry, axes, grid3DModel, api) {
  var dpr = api.getDevicePixelRatio();
  axes.forEach(function(axis, idx) {
    var axisModel = axis.model;
    var otherExtent = axes[1 - idx].getExtent();
    if (axis.scale.isBlank()) {
      return;
    }
    var splitLineModel = axisModel.getModel("splitLine", grid3DModel.getModel("splitLine"));
    if (splitLineModel.get("show")) {
      var lineStyleModel = splitLineModel.getModel("lineStyle");
      var lineColors = lineStyleModel.get("color");
      var opacity = firstNotNull$2(lineStyleModel.get("opacity"), 1);
      var lineWidth = firstNotNull$2(lineStyleModel.get("width"), 1);
      lineColors = isArray(lineColors) ? lineColors : [lineColors];
      var ticksCoords = axis.getTicksCoords({
        tickModel: splitLineModel
      });
      var count = 0;
      for (var i = 0; i < ticksCoords.length; i++) {
        var tickCoord = ticksCoords[i].coord;
        var lineColor = graphicGL.parseColor(lineColors[count % lineColors.length]);
        lineColor[3] *= opacity;
        var p02 = [0, 0, 0];
        var p12 = [0, 0, 0];
        p02[idx] = p12[idx] = tickCoord;
        p02[1 - idx] = otherExtent[0];
        p12[1 - idx] = otherExtent[1];
        geometry.addLine(p02, p12, lineColor, lineWidth * dpr);
        count++;
      }
    }
  });
};
Grid3DFace.prototype._udpateSplitAreas = function(geometry, axes, grid3DModel, api) {
  axes.forEach(function(axis, idx) {
    var axisModel = axis.model;
    var otherExtent = axes[1 - idx].getExtent();
    if (axis.scale.isBlank()) {
      return;
    }
    var splitAreaModel = axisModel.getModel("splitArea", grid3DModel.getModel("splitArea"));
    if (splitAreaModel.get("show")) {
      var areaStyleModel = splitAreaModel.getModel("areaStyle");
      var colors = areaStyleModel.get("color");
      var opacity = firstNotNull$2(areaStyleModel.get("opacity"), 1);
      colors = isArray(colors) ? colors : [colors];
      var ticksCoords = axis.getTicksCoords({
        tickModel: splitAreaModel,
        clamp: true
      });
      var count = 0;
      var prevP0 = [0, 0, 0];
      var prevP1 = [0, 0, 0];
      for (var i = 0; i < ticksCoords.length; i++) {
        var tickCoord = ticksCoords[i].coord;
        var p02 = [0, 0, 0];
        var p12 = [0, 0, 0];
        p02[idx] = p12[idx] = tickCoord;
        p02[1 - idx] = otherExtent[0];
        p12[1 - idx] = otherExtent[1];
        if (i === 0) {
          prevP0 = p02;
          prevP1 = p12;
          continue;
        }
        var color = graphicGL.parseColor(colors[count % colors.length]);
        color[3] *= opacity;
        geometry.addQuad([prevP0, p02, p12, prevP1], color);
        prevP0 = p02;
        prevP1 = p12;
        count++;
      }
    }
  });
};
var squareTriangles = [0, 1, 2, 0, 2, 3];
var SpritesGeometry = Geometry.extend(function() {
  return {
    attributes: {
      position: new Geometry.Attribute("position", "float", 3, "POSITION"),
      texcoord: new Geometry.Attribute("texcoord", "float", 2, "TEXCOORD_0"),
      offset: new Geometry.Attribute("offset", "float", 2),
      color: new Geometry.Attribute("color", "float", 4, "COLOR")
    }
  };
}, {
  resetOffset: function() {
    this._vertexOffset = 0;
    this._faceOffset = 0;
  },
  setSpriteCount: function(spriteCount) {
    this._spriteCount = spriteCount;
    var vertexCount = spriteCount * 4;
    var triangleCount = spriteCount * 2;
    if (this.vertexCount !== vertexCount) {
      this.attributes.position.init(vertexCount);
      this.attributes.offset.init(vertexCount);
      this.attributes.color.init(vertexCount);
    }
    if (this.triangleCount !== triangleCount) {
      this.indices = vertexCount > 65535 ? new Uint32Array(triangleCount * 3) : new Uint16Array(triangleCount * 3);
    }
  },
  setSpriteAlign: function(spriteOffset, size, align, verticalAlign, margin) {
    if (align == null) {
      align = "left";
    }
    if (verticalAlign == null) {
      verticalAlign = "top";
    }
    var leftOffset, topOffset, rightOffset, bottomOffset;
    margin = margin || 0;
    switch (align) {
      case "left":
        leftOffset = margin;
        rightOffset = size[0] + margin;
        break;
      case "center":
      case "middle":
        leftOffset = -size[0] / 2;
        rightOffset = size[0] / 2;
        break;
      case "right":
        leftOffset = -size[0] - margin;
        rightOffset = -margin;
        break;
    }
    switch (verticalAlign) {
      case "bottom":
        topOffset = margin;
        bottomOffset = size[1] + margin;
        break;
      case "middle":
        topOffset = -size[1] / 2;
        bottomOffset = size[1] / 2;
        break;
      case "top":
        topOffset = -size[1] - margin;
        bottomOffset = -margin;
        break;
    }
    var vertexOffset = spriteOffset * 4;
    var offsetAttr = this.attributes.offset;
    offsetAttr.set(vertexOffset, [leftOffset, bottomOffset]);
    offsetAttr.set(vertexOffset + 1, [rightOffset, bottomOffset]);
    offsetAttr.set(vertexOffset + 2, [rightOffset, topOffset]);
    offsetAttr.set(vertexOffset + 3, [leftOffset, topOffset]);
  },
  /**
   * Add sprite
   * @param {Array.<number>} position
   * @param {Array.<number>} size [width, height]
   * @param {Array.<Array>} coords [leftBottom, rightTop]
   * @param {string} [align='left'] 'left' 'center' 'right'
   * @param {string} [verticalAlign='top'] 'top' 'middle' 'bottom'
   * @param {number} [screenMargin=0]
   */
  addSprite: function(position, size, coords, align, verticalAlign, screenMargin) {
    var vertexOffset = this._vertexOffset;
    this.setSprite(this._vertexOffset / 4, position, size, coords, align, verticalAlign, screenMargin);
    for (var i = 0; i < squareTriangles.length; i++) {
      this.indices[this._faceOffset * 3 + i] = squareTriangles[i] + vertexOffset;
    }
    this._faceOffset += 2;
    this._vertexOffset += 4;
    return vertexOffset / 4;
  },
  setSprite: function(spriteOffset, position, size, coords, align, verticalAlign, screenMargin) {
    var vertexOffset = spriteOffset * 4;
    var attributes = this.attributes;
    for (var i = 0; i < 4; i++) {
      attributes.position.set(vertexOffset + i, position);
    }
    var texcoordAttr = attributes.texcoord;
    texcoordAttr.set(vertexOffset, [coords[0][0], coords[0][1]]);
    texcoordAttr.set(vertexOffset + 1, [coords[1][0], coords[0][1]]);
    texcoordAttr.set(vertexOffset + 2, [coords[1][0], coords[1][1]]);
    texcoordAttr.set(vertexOffset + 3, [coords[0][0], coords[1][1]]);
    this.setSpriteAlign(spriteOffset, size, align, verticalAlign, screenMargin);
  }
});
defaults(SpritesGeometry.prototype, dynamicConvertMixin);
const labelsGLSL = "@export ecgl.labels.vertex\n\nattribute vec3 position: POSITION;\nattribute vec2 texcoord: TEXCOORD_0;\nattribute vec2 offset;\n#ifdef VERTEX_COLOR\nattribute vec4 a_Color : COLOR;\nvarying vec4 v_Color;\n#endif\n\nuniform mat4 worldViewProjection : WORLDVIEWPROJECTION;\nuniform vec4 viewport : VIEWPORT;\n\nvarying vec2 v_Texcoord;\n\nvoid main()\n{\n vec4 proj = worldViewProjection * vec4(position, 1.0);\n\n vec2 screen = (proj.xy / abs(proj.w) + 1.0) * 0.5 * viewport.zw;\n\n screen += offset;\n\n proj.xy = (screen / viewport.zw - 0.5) * 2.0 * abs(proj.w);\n gl_Position = proj;\n#ifdef VERTEX_COLOR\n v_Color = a_Color;\n#endif\n v_Texcoord = texcoord;\n}\n@end\n\n\n@export ecgl.labels.fragment\n\nuniform vec3 color : [1.0, 1.0, 1.0];\nuniform float alpha : 1.0;\nuniform sampler2D textureAtlas;\nuniform vec2 uvScale: [1.0, 1.0];\n\n#ifdef VERTEX_COLOR\nvarying vec4 v_Color;\n#endif\nvarying float v_Miter;\n\nvarying vec2 v_Texcoord;\n\nvoid main()\n{\n gl_FragColor = vec4(color, alpha) * texture2D(textureAtlas, v_Texcoord * uvScale);\n#ifdef VERTEX_COLOR\n gl_FragColor *= v_Color;\n#endif\n}\n\n@end";
graphicGL.Shader.import(labelsGLSL);
const LabelsMesh = graphicGL.Mesh.extend(function() {
  var geometry = new SpritesGeometry({
    dynamic: true
  });
  var material = new graphicGL.Material({
    shader: graphicGL.createShader("ecgl.labels"),
    transparent: true,
    depthMask: false
  });
  return {
    geometry,
    material,
    culling: false,
    castShadow: false,
    ignorePicking: true
  };
});
var firstNotNull$1 = retrieve.firstNotNull;
var dimIndicesMap$1 = {
  // Left to right
  x: 0,
  // Far to near
  y: 2,
  // Bottom to up
  z: 1
};
function Grid3DAxis(dim, linesMaterial) {
  var linesMesh = new graphicGL.Mesh({
    geometry: new LinesGeometry$2({
      useNativeLine: false
    }),
    material: linesMaterial,
    castShadow: false,
    ignorePicking: true,
    renderOrder: 2
  });
  var axisLabelsMesh = new LabelsMesh();
  axisLabelsMesh.material.depthMask = false;
  var rootNode = new graphicGL.Node();
  rootNode.add(linesMesh);
  rootNode.add(axisLabelsMesh);
  this.rootNode = rootNode;
  this.dim = dim;
  this.linesMesh = linesMesh;
  this.labelsMesh = axisLabelsMesh;
  this.axisLineCoords = null;
  this.labelElements = [];
}
var otherDim = {
  x: "y",
  y: "x",
  z: "y"
};
Grid3DAxis.prototype.update = function(grid3DModel, axisLabelSurface, api) {
  var cartesian = grid3DModel.coordinateSystem;
  var axis = cartesian.getAxis(this.dim);
  var linesGeo = this.linesMesh.geometry;
  var labelsGeo = this.labelsMesh.geometry;
  linesGeo.convertToDynamicArray(true);
  labelsGeo.convertToDynamicArray(true);
  var axisModel = axis.model;
  var extent = axis.getExtent();
  var dpr = api.getDevicePixelRatio();
  var axisLineModel = axisModel.getModel("axisLine", grid3DModel.getModel("axisLine"));
  var axisTickModel = axisModel.getModel("axisTick", grid3DModel.getModel("axisTick"));
  var axisLabelModel = axisModel.getModel("axisLabel", grid3DModel.getModel("axisLabel"));
  var axisLineColor = axisLineModel.get("lineStyle.color");
  if (axisLineModel.get("show")) {
    var axisLineStyleModel = axisLineModel.getModel("lineStyle");
    var p02 = [0, 0, 0];
    var p12 = [0, 0, 0];
    var idx = dimIndicesMap$1[axis.dim];
    p02[idx] = extent[0];
    p12[idx] = extent[1];
    this.axisLineCoords = [p02, p12];
    var color = graphicGL.parseColor(axisLineColor);
    var lineWidth = firstNotNull$1(axisLineStyleModel.get("width"), 1);
    var opacity = firstNotNull$1(axisLineStyleModel.get("opacity"), 1);
    color[3] *= opacity;
    linesGeo.addLine(p02, p12, color, lineWidth * dpr);
  }
  if (axisTickModel.get("show")) {
    var lineStyleModel = axisTickModel.getModel("lineStyle");
    var lineColor = graphicGL.parseColor(firstNotNull$1(lineStyleModel.get("color"), axisLineColor));
    var lineWidth = firstNotNull$1(lineStyleModel.get("width"), 1);
    lineColor[3] *= firstNotNull$1(lineStyleModel.get("opacity"), 1);
    var ticksCoords = axis.getTicksCoords();
    var tickLength = axisTickModel.get("length");
    for (var i = 0; i < ticksCoords.length; i++) {
      var tickCoord = ticksCoords[i].coord;
      var p02 = [0, 0, 0];
      var p12 = [0, 0, 0];
      var idx = dimIndicesMap$1[axis.dim];
      var otherIdx = dimIndicesMap$1[otherDim[axis.dim]];
      p02[idx] = p12[idx] = tickCoord;
      p12[otherIdx] = tickLength;
      linesGeo.addLine(p02, p12, lineColor, lineWidth * dpr);
    }
  }
  this.labelElements = [];
  var dpr = api.getDevicePixelRatio();
  if (axisLabelModel.get("show")) {
    var ticksCoords = axis.getTicksCoords();
    var categoryData = axisModel.get("data");
    var labelMargin = axisLabelModel.get("margin");
    var labels = axis.getViewLabels();
    for (var i = 0; i < labels.length; i++) {
      var tickValue = labels[i].tickValue;
      var formattedLabel = labels[i].formattedLabel;
      var rawLabel = labels[i].rawLabel;
      var tickCoord = axis.dataToCoord(tickValue);
      var p = [0, 0, 0];
      var idx = dimIndicesMap$1[axis.dim];
      var otherIdx = dimIndicesMap$1[otherDim[axis.dim]];
      p[idx] = p[idx] = tickCoord;
      p[otherIdx] = labelMargin;
      var itemTextStyleModel = axisLabelModel;
      if (categoryData && categoryData[tickValue] && categoryData[tickValue].textStyle) {
        itemTextStyleModel = new Model(categoryData[tickValue].textStyle, axisLabelModel, axisModel.ecModel);
      }
      var textColor = firstNotNull$1(itemTextStyleModel.get("color"), axisLineColor);
      var textEl = new ZRText({
        style: createTextStyle(itemTextStyleModel, {
          text: formattedLabel,
          fill: typeof textColor === "function" ? textColor(
            // (1) In category axis with data zoom, tick is not the original
            // index of axis.data. So tick should not be exposed to user
            // in category axis.
            // (2) Compatible with previous version, which always returns labelStr.
            // But in interval scale labelStr is like '223,445', which maked
            // user repalce ','. So we modify it to return original val but remain
            // it as 'string' to avoid error in replacing.
            axis.type === "category" ? rawLabel : axis.type === "value" ? tickValue + "" : tickValue,
            i
          ) : textColor,
          verticalAlign: "top",
          align: "left"
        })
      });
      var coords = axisLabelSurface.add(textEl);
      var rect = textEl.getBoundingRect();
      labelsGeo.addSprite(p, [rect.width * dpr, rect.height * dpr], coords);
      this.labelElements.push(textEl);
    }
  }
  if (axisModel.get("name")) {
    var nameTextStyleModel = axisModel.getModel("nameTextStyle");
    var p = [0, 0, 0];
    var idx = dimIndicesMap$1[axis.dim];
    var otherIdx = dimIndicesMap$1[otherDim[axis.dim]];
    var labelColor = firstNotNull$1(nameTextStyleModel.get("color"), axisLineColor);
    var strokeColor = nameTextStyleModel.get("borderColor");
    var lineWidth = nameTextStyleModel.get("borderWidth");
    p[idx] = p[idx] = (extent[0] + extent[1]) / 2;
    p[otherIdx] = axisModel.get("nameGap");
    var textEl = new ZRText({
      style: createTextStyle(nameTextStyleModel, {
        text: axisModel.get("name"),
        fill: labelColor,
        stroke: strokeColor,
        lineWidth
      })
    });
    var coords = axisLabelSurface.add(textEl);
    var rect = textEl.getBoundingRect();
    labelsGeo.addSprite(p, [rect.width * dpr, rect.height * dpr], coords);
    textEl.__idx = this.labelElements.length;
    this.nameLabelElement = textEl;
  }
  this.labelsMesh.material.set("textureAtlas", axisLabelSurface.getTexture());
  this.labelsMesh.material.set("uvScale", axisLabelSurface.getCoordsScale());
  linesGeo.convertToTypedArray();
  labelsGeo.convertToTypedArray();
};
Grid3DAxis.prototype.setSpriteAlign = function(textAlign, textVerticalAlign, api) {
  var dpr = api.getDevicePixelRatio();
  var labelGeo = this.labelsMesh.geometry;
  for (var i = 0; i < this.labelElements.length; i++) {
    var labelEl = this.labelElements[i];
    var rect = labelEl.getBoundingRect();
    labelGeo.setSpriteAlign(i, [rect.width * dpr, rect.height * dpr], textAlign, textVerticalAlign);
  }
  var nameLabelEl = this.nameLabelElement;
  if (nameLabelEl) {
    var rect = nameLabelEl.getBoundingRect();
    labelGeo.setSpriteAlign(nameLabelEl.__idx, [rect.width * dpr, rect.height * dpr], textAlign, textVerticalAlign);
    labelGeo.dirty();
  }
  this.textAlign = textAlign;
  this.textVerticalAlign = textVerticalAlign;
};
const lines3DGLSL = "@export ecgl.lines3D.vertex\n\nuniform mat4 worldViewProjection : WORLDVIEWPROJECTION;\n\nattribute vec3 position: POSITION;\nattribute vec4 a_Color : COLOR;\nvarying vec4 v_Color;\n\nvoid main()\n{\n gl_Position = worldViewProjection * vec4(position, 1.0);\n v_Color = a_Color;\n}\n\n@end\n\n@export ecgl.lines3D.fragment\n\nuniform vec4 color : [1.0, 1.0, 1.0, 1.0];\n\nvarying vec4 v_Color;\n\n@import clay.util.srgb\n\nvoid main()\n{\n#ifdef SRGB_DECODE\n gl_FragColor = sRGBToLinear(color * v_Color);\n#else\n gl_FragColor = color * v_Color;\n#endif\n}\n@end\n\n\n\n@export ecgl.lines3D.clipNear\n\nvec4 clipNear(vec4 p1, vec4 p2) {\n float n = (p1.w - near) / (p1.w - p2.w);\n return vec4(mix(p1.xy, p2.xy, n), -near, near);\n}\n\n@end\n\n@export ecgl.lines3D.expandLine\n#ifdef VERTEX_ANIMATION\n vec4 prevProj = worldViewProjection * vec4(mix(prevPositionPrev, positionPrev, percent), 1.0);\n vec4 currProj = worldViewProjection * vec4(mix(prevPosition, position, percent), 1.0);\n vec4 nextProj = worldViewProjection * vec4(mix(prevPositionNext, positionNext, percent), 1.0);\n#else\n vec4 prevProj = worldViewProjection * vec4(positionPrev, 1.0);\n vec4 currProj = worldViewProjection * vec4(position, 1.0);\n vec4 nextProj = worldViewProjection * vec4(positionNext, 1.0);\n#endif\n\n if (currProj.w < 0.0) {\n if (nextProj.w > 0.0) {\n currProj = clipNear(currProj, nextProj);\n }\n else if (prevProj.w > 0.0) {\n currProj = clipNear(currProj, prevProj);\n }\n }\n\n vec2 prevScreen = (prevProj.xy / abs(prevProj.w) + 1.0) * 0.5 * viewport.zw;\n vec2 currScreen = (currProj.xy / abs(currProj.w) + 1.0) * 0.5 * viewport.zw;\n vec2 nextScreen = (nextProj.xy / abs(nextProj.w) + 1.0) * 0.5 * viewport.zw;\n\n vec2 dir;\n float len = offset;\n if (position == positionPrev) {\n dir = normalize(nextScreen - currScreen);\n }\n else if (position == positionNext) {\n dir = normalize(currScreen - prevScreen);\n }\n else {\n vec2 dirA = normalize(currScreen - prevScreen);\n vec2 dirB = normalize(nextScreen - currScreen);\n\n vec2 tanget = normalize(dirA + dirB);\n\n float miter = 1.0 / max(dot(tanget, dirA), 0.5);\n len *= miter;\n dir = tanget;\n }\n\n dir = vec2(-dir.y, dir.x) * len;\n currScreen += dir;\n\n currProj.xy = (currScreen / viewport.zw - 0.5) * 2.0 * abs(currProj.w);\n@end\n\n\n@export ecgl.meshLines3D.vertex\n\nattribute vec3 position: POSITION;\nattribute vec3 positionPrev;\nattribute vec3 positionNext;\nattribute float offset;\nattribute vec4 a_Color : COLOR;\n\n#ifdef VERTEX_ANIMATION\nattribute vec3 prevPosition;\nattribute vec3 prevPositionPrev;\nattribute vec3 prevPositionNext;\nuniform float percent : 1.0;\n#endif\n\nuniform mat4 worldViewProjection : WORLDVIEWPROJECTION;\nuniform vec4 viewport : VIEWPORT;\nuniform float near : NEAR;\n\nvarying vec4 v_Color;\n\n@import ecgl.common.wireframe.vertexHeader\n\n@import ecgl.lines3D.clipNear\n\nvoid main()\n{\n @import ecgl.lines3D.expandLine\n\n gl_Position = currProj;\n\n v_Color = a_Color;\n\n @import ecgl.common.wireframe.vertexMain\n}\n@end\n\n\n@export ecgl.meshLines3D.fragment\n\nuniform vec4 color : [1.0, 1.0, 1.0, 1.0];\n\nvarying vec4 v_Color;\n\n@import ecgl.common.wireframe.fragmentHeader\n\n@import clay.util.srgb\n\nvoid main()\n{\n#ifdef SRGB_DECODE\n gl_FragColor = sRGBToLinear(color * v_Color);\n#else\n gl_FragColor = color * v_Color;\n#endif\n\n @import ecgl.common.wireframe.fragmentMain\n}\n\n@end";
var firstNotNull = retrieve.firstNotNull;
graphicGL.Shader.import(lines3DGLSL);
var dimIndicesMap = {
  // Left to right
  x: 0,
  // Far to near
  y: 2,
  // Bottom to up
  z: 1
};
const Grid3DView = ComponentView.extend({
  type: "grid3D",
  __ecgl__: true,
  init: function(ecModel, api) {
    var FACES = [
      // planeDim0, planeDim1, offsetDim, dir on dim3 axis(gl), plane.
      ["y", "z", "x", -1, "left"],
      ["y", "z", "x", 1, "right"],
      ["x", "y", "z", -1, "bottom"],
      ["x", "y", "z", 1, "top"],
      ["x", "z", "y", -1, "far"],
      ["x", "z", "y", 1, "near"]
    ];
    var DIMS = ["x", "y", "z"];
    var quadsMaterial = new graphicGL.Material({
      // transparent: true,
      shader: graphicGL.createShader("ecgl.color"),
      depthMask: false,
      transparent: true
    });
    var linesMaterial = new graphicGL.Material({
      // transparent: true,
      shader: graphicGL.createShader("ecgl.meshLines3D"),
      depthMask: false,
      transparent: true
    });
    quadsMaterial.define("fragment", "DOUBLE_SIDED");
    quadsMaterial.define("both", "VERTEX_COLOR");
    this.groupGL = new graphicGL.Node();
    this._control = new OrbitControl({
      zr: api.getZr()
    });
    this._control.init();
    this._faces = FACES.map(function(faceInfo) {
      var face = new Grid3DFace(faceInfo, linesMaterial, quadsMaterial);
      this.groupGL.add(face.rootNode);
      return face;
    }, this);
    this._axes = DIMS.map(function(dim) {
      var axis = new Grid3DAxis(dim, linesMaterial);
      this.groupGL.add(axis.rootNode);
      return axis;
    }, this);
    var dpr = api.getDevicePixelRatio();
    this._axisLabelSurface = new ZRTextureAtlasSurface({
      width: 256,
      height: 256,
      devicePixelRatio: dpr
    });
    this._axisLabelSurface.onupdate = function() {
      api.getZr().refresh();
    };
    this._axisPointerLineMesh = new graphicGL.Mesh({
      geometry: new LinesGeometry$2({
        useNativeLine: false
      }),
      material: linesMaterial,
      castShadow: false,
      // PENDING
      ignorePicking: true,
      renderOrder: 3
    });
    this.groupGL.add(this._axisPointerLineMesh);
    this._axisPointerLabelsSurface = new ZRTextureAtlasSurface({
      width: 128,
      height: 128,
      devicePixelRatio: dpr
    });
    this._axisPointerLabelsMesh = new LabelsMesh({
      ignorePicking: true,
      renderOrder: 4,
      castShadow: false
    });
    this._axisPointerLabelsMesh.material.set("textureAtlas", this._axisPointerLabelsSurface.getTexture());
    this.groupGL.add(this._axisPointerLabelsMesh);
    this._lightRoot = new graphicGL.Node();
    this._sceneHelper = new SceneHelper();
    this._sceneHelper.initLight(this._lightRoot);
  },
  render: function(grid3DModel, ecModel, api) {
    this._model = grid3DModel;
    this._api = api;
    var cartesian = grid3DModel.coordinateSystem;
    cartesian.viewGL.add(this._lightRoot);
    if (grid3DModel.get("show")) {
      cartesian.viewGL.add(this.groupGL);
    } else {
      cartesian.viewGL.remove(this.groupGL);
    }
    var control = this._control;
    control.setViewGL(cartesian.viewGL);
    var viewControlModel = grid3DModel.getModel("viewControl");
    control.setFromViewControlModel(viewControlModel, 0);
    this._axisLabelSurface.clear();
    control.off("update");
    if (grid3DModel.get("show")) {
      this._faces.forEach(function(face) {
        face.update(grid3DModel, ecModel, api);
      }, this);
      this._axes.forEach(function(axis) {
        axis.update(grid3DModel, this._axisLabelSurface, api);
      }, this);
    }
    control.on("update", this._onCameraChange.bind(this, grid3DModel, api), this);
    this._sceneHelper.setScene(cartesian.viewGL.scene);
    this._sceneHelper.updateLight(grid3DModel);
    cartesian.viewGL.setPostEffect(grid3DModel.getModel("postEffect"), api);
    cartesian.viewGL.setTemporalSuperSampling(grid3DModel.getModel("temporalSuperSampling"));
    this._initMouseHandler(grid3DModel);
  },
  afterRender: function(grid3DModel, ecModel, api, layerGL) {
    var renderer = layerGL.renderer;
    this._sceneHelper.updateAmbientCubemap(renderer, grid3DModel, api);
    this._sceneHelper.updateSkybox(renderer, grid3DModel, api);
  },
  /**
   * showAxisPointer will be triggered by action.
   */
  showAxisPointer: function(grid3dModel, ecModel, api, payload) {
    this._doShowAxisPointer();
    this._updateAxisPointer(payload.value);
  },
  /**
   * hideAxisPointer will be triggered by action.
   */
  hideAxisPointer: function(grid3dModel, ecModel, api, payload) {
    this._doHideAxisPointer();
  },
  _initMouseHandler: function(grid3DModel) {
    var cartesian = grid3DModel.coordinateSystem;
    var viewGL = cartesian.viewGL;
    if (grid3DModel.get("show") && grid3DModel.get("axisPointer.show")) {
      viewGL.on("mousemove", this._updateAxisPointerOnMousePosition, this);
    } else {
      viewGL.off("mousemove", this._updateAxisPointerOnMousePosition);
    }
  },
  /**
   * Try find and show axisPointer on the intersect point
   * of mouse ray with grid plane.
   */
  _updateAxisPointerOnMousePosition: function(e2) {
    if (e2.target) {
      return;
    }
    var grid3DModel = this._model;
    var cartesian = grid3DModel.coordinateSystem;
    var viewGL = cartesian.viewGL;
    var ray = viewGL.castRay(e2.offsetX, e2.offsetY, new graphicGL.Ray());
    var nearestIntersectPoint;
    for (var i = 0; i < this._faces.length; i++) {
      var face = this._faces[i];
      if (face.rootNode.invisible) {
        continue;
      }
      if (face.plane.normal.dot(viewGL.camera.worldTransform.z) < 0) {
        face.plane.normal.negate();
      }
      var point = ray.intersectPlane(face.plane);
      if (!point) {
        continue;
      }
      var axis0 = cartesian.getAxis(face.faceInfo[0]);
      var axis1 = cartesian.getAxis(face.faceInfo[1]);
      var idx0 = dimIndicesMap[face.faceInfo[0]];
      var idx1 = dimIndicesMap[face.faceInfo[1]];
      if (axis0.contain(point.array[idx0]) && axis1.contain(point.array[idx1])) {
        nearestIntersectPoint = point;
      }
    }
    if (nearestIntersectPoint) {
      var data = cartesian.pointToData(nearestIntersectPoint.array, [], true);
      this._updateAxisPointer(data);
      this._doShowAxisPointer();
    } else {
      this._doHideAxisPointer();
    }
  },
  _onCameraChange: function(grid3DModel, api) {
    if (grid3DModel.get("show")) {
      this._updateFaceVisibility();
      this._updateAxisLinePosition();
    }
    var control = this._control;
    api.dispatchAction({
      type: "grid3DChangeCamera",
      alpha: control.getAlpha(),
      beta: control.getBeta(),
      distance: control.getDistance(),
      center: control.getCenter(),
      from: this.uid,
      grid3DId: grid3DModel.id
    });
  },
  /**
   * Update visibility of each face when camera view changed, front face will be invisible.
   * @private
   */
  _updateFaceVisibility: function() {
    var camera2 = this._control.getCamera();
    var viewSpacePos = new graphicGL.Vector3();
    camera2.update();
    for (var idx = 0; idx < this._faces.length / 2; idx++) {
      var depths = [];
      for (var k = 0; k < 2; k++) {
        var face = this._faces[idx * 2 + k];
        face.rootNode.getWorldPosition(viewSpacePos);
        viewSpacePos.transformMat4(camera2.viewMatrix);
        depths[k] = viewSpacePos.z;
      }
      var frontIndex = depths[0] > depths[1] ? 0 : 1;
      var frontFace = this._faces[idx * 2 + frontIndex];
      var backFace = this._faces[idx * 2 + 1 - frontIndex];
      frontFace.rootNode.invisible = true;
      backFace.rootNode.invisible = false;
    }
  },
  /**
   * Update axis line position when camera view changed.
   * @private
   */
  _updateAxisLinePosition: function() {
    var cartesian = this._model.coordinateSystem;
    var xAxis = cartesian.getAxis("x");
    var yAxis = cartesian.getAxis("y");
    var zAxis = cartesian.getAxis("z");
    var top = zAxis.getExtentMax();
    var bottom = zAxis.getExtentMin();
    var left = xAxis.getExtentMin();
    var right = xAxis.getExtentMax();
    var near = yAxis.getExtentMax();
    var far = yAxis.getExtentMin();
    var xAxisNode = this._axes[0].rootNode;
    var yAxisNode = this._axes[1].rootNode;
    var zAxisNode = this._axes[2].rootNode;
    var faces = this._faces;
    var xAxisZOffset = faces[4].rootNode.invisible ? far : near;
    var xAxisYOffset = faces[2].rootNode.invisible ? top : bottom;
    var yAxisXOffset = faces[0].rootNode.invisible ? left : right;
    var yAxisYOffset = faces[2].rootNode.invisible ? top : bottom;
    var zAxisXOffset = faces[0].rootNode.invisible ? right : left;
    var zAxisZOffset = faces[4].rootNode.invisible ? far : near;
    xAxisNode.rotation.identity();
    yAxisNode.rotation.identity();
    zAxisNode.rotation.identity();
    if (faces[4].rootNode.invisible) {
      this._axes[0].flipped = true;
      xAxisNode.rotation.rotateX(Math.PI);
    }
    if (faces[0].rootNode.invisible) {
      this._axes[1].flipped = true;
      yAxisNode.rotation.rotateZ(Math.PI);
    }
    if (faces[4].rootNode.invisible) {
      this._axes[2].flipped = true;
      zAxisNode.rotation.rotateY(Math.PI);
    }
    xAxisNode.position.set(0, xAxisYOffset, xAxisZOffset);
    yAxisNode.position.set(yAxisXOffset, yAxisYOffset, 0);
    zAxisNode.position.set(zAxisXOffset, 0, zAxisZOffset);
    xAxisNode.update();
    yAxisNode.update();
    zAxisNode.update();
    this._updateAxisLabelAlign();
  },
  /**
   * Update label align on axis when axisLine position changed.
   * @private
   */
  _updateAxisLabelAlign: function() {
    var camera2 = this._control.getCamera();
    var coords = [new graphicGL.Vector4(), new graphicGL.Vector4()];
    var center = new graphicGL.Vector4();
    this.groupGL.getWorldPosition(center);
    center.w = 1;
    center.transformMat4(camera2.viewMatrix).transformMat4(camera2.projectionMatrix);
    center.x /= center.w;
    center.y /= center.w;
    this._axes.forEach(function(axisInfo) {
      var lineCoords = axisInfo.axisLineCoords;
      axisInfo.labelsMesh.geometry;
      for (var i = 0; i < coords.length; i++) {
        coords[i].setArray(lineCoords[i]);
        coords[i].w = 1;
        coords[i].transformMat4(axisInfo.rootNode.worldTransform).transformMat4(camera2.viewMatrix).transformMat4(camera2.projectionMatrix);
        coords[i].x /= coords[i].w;
        coords[i].y /= coords[i].w;
      }
      var dx = coords[1].x - coords[0].x;
      var dy = coords[1].y - coords[0].y;
      var cx = (coords[1].x + coords[0].x) / 2;
      var cy = (coords[1].y + coords[0].y) / 2;
      var textAlign;
      var verticalAlign;
      if (Math.abs(dy / dx) < 0.5) {
        textAlign = "center";
        verticalAlign = cy > center.y ? "bottom" : "top";
      } else {
        verticalAlign = "middle";
        textAlign = cx > center.x ? "left" : "right";
      }
      axisInfo.setSpriteAlign(textAlign, verticalAlign, this._api);
    }, this);
  },
  _doShowAxisPointer: function() {
    if (!this._axisPointerLineMesh.invisible) {
      return;
    }
    this._axisPointerLineMesh.invisible = false;
    this._axisPointerLabelsMesh.invisible = false;
    this._api.getZr().refresh();
  },
  _doHideAxisPointer: function() {
    if (this._axisPointerLineMesh.invisible) {
      return;
    }
    this._axisPointerLineMesh.invisible = true;
    this._axisPointerLabelsMesh.invisible = true;
    this._api.getZr().refresh();
  },
  /**
   * @private updateAxisPointer.
   */
  _updateAxisPointer: function(data) {
    var cartesian = this._model.coordinateSystem;
    var point = cartesian.dataToPoint(data);
    var axisPointerLineMesh = this._axisPointerLineMesh;
    var linesGeo = axisPointerLineMesh.geometry;
    var axisPointerParentModel = this._model.getModel("axisPointer");
    var dpr = this._api.getDevicePixelRatio();
    linesGeo.convertToDynamicArray(true);
    function ifShowAxisPointer(axis2) {
      return retrieve.firstNotNull(axis2.model.get("axisPointer.show"), axisPointerParentModel.get("show"));
    }
    function getAxisColorAndLineWidth(axis2) {
      var axisPointerModel = axis2.model.getModel("axisPointer", axisPointerParentModel);
      var lineStyleModel = axisPointerModel.getModel("lineStyle");
      var color = graphicGL.parseColor(lineStyleModel.get("color"));
      var lineWidth = firstNotNull(lineStyleModel.get("width"), 1);
      var opacity = firstNotNull(lineStyleModel.get("opacity"), 1);
      color[3] *= opacity;
      return {
        color,
        lineWidth
      };
    }
    for (var k = 0; k < this._faces.length; k++) {
      var face = this._faces[k];
      if (face.rootNode.invisible) {
        continue;
      }
      var faceInfo = face.faceInfo;
      var otherCoord = faceInfo[3] < 0 ? cartesian.getAxis(faceInfo[2]).getExtentMin() : cartesian.getAxis(faceInfo[2]).getExtentMax();
      var otherDimIdx = dimIndicesMap[faceInfo[2]];
      for (var i = 0; i < 2; i++) {
        var dim = faceInfo[i];
        var faceOtherDim = faceInfo[1 - i];
        var axis = cartesian.getAxis(dim);
        var faceOtherAxis = cartesian.getAxis(faceOtherDim);
        if (!ifShowAxisPointer(axis)) {
          continue;
        }
        var p02 = [0, 0, 0];
        var p12 = [0, 0, 0];
        var dimIdx = dimIndicesMap[dim];
        var faceOtherDimIdx = dimIndicesMap[faceOtherDim];
        p02[dimIdx] = p12[dimIdx] = point[dimIdx];
        p02[otherDimIdx] = p12[otherDimIdx] = otherCoord;
        p02[faceOtherDimIdx] = faceOtherAxis.getExtentMin();
        p12[faceOtherDimIdx] = faceOtherAxis.getExtentMax();
        var colorAndLineWidth = getAxisColorAndLineWidth(axis);
        linesGeo.addLine(p02, p12, colorAndLineWidth.color, colorAndLineWidth.lineWidth * dpr);
      }
      if (ifShowAxisPointer(cartesian.getAxis(faceInfo[2]))) {
        var p02 = point.slice();
        var p12 = point.slice();
        p12[otherDimIdx] = otherCoord;
        var colorAndLineWidth = getAxisColorAndLineWidth(cartesian.getAxis(faceInfo[2]));
        linesGeo.addLine(p02, p12, colorAndLineWidth.color, colorAndLineWidth.lineWidth * dpr);
      }
    }
    linesGeo.convertToTypedArray();
    this._updateAxisPointerLabelsMesh(data);
    this._api.getZr().refresh();
  },
  _updateAxisPointerLabelsMesh: function(data) {
    var grid3dModel = this._model;
    var axisPointerLabelsMesh = this._axisPointerLabelsMesh;
    var axisPointerLabelsSurface = this._axisPointerLabelsSurface;
    var cartesian = grid3dModel.coordinateSystem;
    var axisPointerParentModel = grid3dModel.getModel("axisPointer");
    axisPointerLabelsMesh.geometry.convertToDynamicArray(true);
    axisPointerLabelsSurface.clear();
    var otherDim2 = {
      x: "y",
      y: "x",
      z: "y"
    };
    this._axes.forEach(function(axisInfo, idx) {
      var axis = cartesian.getAxis(axisInfo.dim);
      var axisModel = axis.model;
      var axisPointerModel = axisModel.getModel("axisPointer", axisPointerParentModel);
      var labelModel = axisPointerModel.getModel("label");
      var lineColor = axisPointerModel.get("lineStyle.color");
      if (!labelModel.get("show") || !axisPointerModel.get("show")) {
        return;
      }
      var val = data[idx];
      var formatter = labelModel.get("formatter");
      var text = axis.scale.getLabel({
        value: val
      });
      if (formatter != null) {
        text = formatter(text, data);
      } else {
        if (axis.scale.type === "interval" || axis.scale.type === "log") {
          var precision = getPrecisionSafe(axis.scale.getTicks()[0]);
          text = val.toFixed(precision + 2);
        }
      }
      var labelColor = labelModel.get("color");
      var textEl = new ZRText({
        style: createTextStyle(labelModel, {
          text,
          fill: labelColor || lineColor,
          align: "left",
          verticalAlign: "top"
        })
      });
      var coords = axisPointerLabelsSurface.add(textEl);
      var rect = textEl.getBoundingRect();
      var dpr = this._api.getDevicePixelRatio();
      var pos = axisInfo.rootNode.position.toArray();
      var otherIdx = dimIndicesMap[otherDim2[axisInfo.dim]];
      pos[otherIdx] += (axisInfo.flipped ? -1 : 1) * labelModel.get("margin");
      pos[dimIndicesMap[axisInfo.dim]] = axis.dataToCoord(data[idx]);
      axisPointerLabelsMesh.geometry.addSprite(pos, [rect.width * dpr, rect.height * dpr], coords, axisInfo.textAlign, axisInfo.textVerticalAlign);
    }, this);
    axisPointerLabelsSurface.getZr().refreshImmediately();
    axisPointerLabelsMesh.material.set("uvScale", axisPointerLabelsSurface.getCoordsScale());
    axisPointerLabelsMesh.geometry.convertToTypedArray();
  },
  dispose: function() {
    this.groupGL.removeAll();
    this._control.dispose();
    this._axisLabelSurface.dispose();
    this._axisPointerLabelsSurface.dispose();
  }
});
function Cartesian3D(name) {
  Cartesian.call(this, name);
  this.type = "cartesian3D";
  this.dimensions = ["x", "y", "z"];
  this.size = [0, 0, 0];
}
Cartesian3D.prototype = {
  constructor: Cartesian3D,
  model: null,
  containPoint: function(point) {
    return this.getAxis("x").contain(point[0]) && this.getAxis("y").contain(point[2]) && this.getAxis("z").contain(point[1]);
  },
  containData: function(data) {
    return this.getAxis("x").containData(data[0]) && this.getAxis("y").containData(data[1]) && this.getAxis("z").containData(data[2]);
  },
  dataToPoint: function(data, out, clamp2) {
    out = out || [];
    out[0] = this.getAxis("x").dataToCoord(data[0], clamp2);
    out[2] = this.getAxis("y").dataToCoord(data[1], clamp2);
    out[1] = this.getAxis("z").dataToCoord(data[2], clamp2);
    return out;
  },
  pointToData: function(point, out, clamp2) {
    out = out || [];
    out[0] = this.getAxis("x").coordToData(point[0], clamp2);
    out[1] = this.getAxis("y").coordToData(point[2], clamp2);
    out[2] = this.getAxis("z").coordToData(point[1], clamp2);
    return out;
  }
};
inherits(Cartesian3D, Cartesian);
function Axis3D(dim, scale, extent) {
  Axis.call(this, dim, scale, extent);
}
Axis3D.prototype = {
  constructor: Axis3D,
  getExtentMin: function() {
    var extent = this._extent;
    return Math.min(extent[0], extent[1]);
  },
  getExtentMax: function() {
    var extent = this._extent;
    return Math.max(extent[0], extent[1]);
  },
  calculateCategoryInterval: function() {
    return Math.floor(this.scale.count() / 8);
  }
};
inherits(Axis3D, Axis);
var TexturePool = function() {
  this._pool = {};
  this._allocatedTextures = [];
};
TexturePool.prototype = {
  constructor: TexturePool,
  get: function(parameters) {
    var key = generateKey(parameters);
    if (!this._pool.hasOwnProperty(key)) {
      this._pool[key] = [];
    }
    var list = this._pool[key];
    if (!list.length) {
      var texture = new Texture2D(parameters);
      this._allocatedTextures.push(texture);
      return texture;
    }
    return list.pop();
  },
  put: function(texture) {
    var key = generateKey(texture);
    if (!this._pool.hasOwnProperty(key)) {
      this._pool[key] = [];
    }
    var list = this._pool[key];
    list.push(texture);
  },
  clear: function(renderer) {
    for (var i = 0; i < this._allocatedTextures.length; i++) {
      this._allocatedTextures[i].dispose(renderer);
    }
    this._pool = {};
    this._allocatedTextures = [];
  }
};
var defaultParams = {
  width: 512,
  height: 512,
  type: glenum.UNSIGNED_BYTE,
  format: glenum.RGBA,
  wrapS: glenum.CLAMP_TO_EDGE,
  wrapT: glenum.CLAMP_TO_EDGE,
  minFilter: glenum.LINEAR_MIPMAP_LINEAR,
  magFilter: glenum.LINEAR,
  useMipmap: true,
  anisotropic: 1,
  flipY: true,
  unpackAlignment: 4,
  premultiplyAlpha: false
};
var defaultParamPropList = Object.keys(defaultParams);
function generateKey(parameters) {
  util.defaultsWithPropList(parameters, defaultParams, defaultParamPropList);
  fallBack(parameters);
  var key = "";
  for (var i = 0; i < defaultParamPropList.length; i++) {
    var name = defaultParamPropList[i];
    var chunk = parameters[name].toString();
    key += chunk;
  }
  return key;
}
function fallBack(target) {
  var IPOT = isPowerOfTwo(target.width, target.height);
  if (target.format === glenum.DEPTH_COMPONENT) {
    target.useMipmap = false;
  }
  if (!IPOT || !target.useMipmap) {
    if (target.minFilter == glenum.NEAREST_MIPMAP_NEAREST || target.minFilter == glenum.NEAREST_MIPMAP_LINEAR) {
      target.minFilter = glenum.NEAREST;
    } else if (target.minFilter == glenum.LINEAR_MIPMAP_LINEAR || target.minFilter == glenum.LINEAR_MIPMAP_NEAREST) {
      target.minFilter = glenum.LINEAR;
    }
  }
  if (!IPOT) {
    target.wrapS = glenum.CLAMP_TO_EDGE;
    target.wrapT = glenum.CLAMP_TO_EDGE;
  }
}
function isPowerOfTwo(width, height) {
  return (width & width - 1) === 0 && (height & height - 1) === 0;
}
const shadowmapEssl = "@export clay.sm.depth.vertex\nuniform mat4 worldViewProjection : WORLDVIEWPROJECTION;\nattribute vec3 position : POSITION;\nattribute vec2 texcoord : TEXCOORD_0;\nuniform vec2 uvRepeat = vec2(1.0, 1.0);\nuniform vec2 uvOffset = vec2(0.0, 0.0);\n@import clay.chunk.skinning_header\n@import clay.chunk.instancing_header\nvarying vec4 v_ViewPosition;\nvarying vec2 v_Texcoord;\nvoid main(){\n vec4 P = vec4(position, 1.0);\n#ifdef SKINNING\n @import clay.chunk.skin_matrix\n P = skinMatrixWS * P;\n#endif\n#ifdef INSTANCING\n @import clay.chunk.instancing_matrix\n P = instanceMat * P;\n#endif\n v_ViewPosition = worldViewProjection * P;\n gl_Position = v_ViewPosition;\n v_Texcoord = texcoord * uvRepeat + uvOffset;\n}\n@end\n@export clay.sm.depth.fragment\nvarying vec4 v_ViewPosition;\nvarying vec2 v_Texcoord;\nuniform float bias : 0.001;\nuniform float slopeScale : 1.0;\nuniform sampler2D alphaMap;\nuniform float alphaCutoff: 0.0;\n@import clay.util.encode_float\nvoid main(){\n float depth = v_ViewPosition.z / v_ViewPosition.w;\n if (alphaCutoff > 0.0) {\n if (texture2D(alphaMap, v_Texcoord).a <= alphaCutoff) {\n discard;\n }\n }\n#ifdef USE_VSM\n depth = depth * 0.5 + 0.5;\n float moment1 = depth;\n float moment2 = depth * depth;\n #ifdef SUPPORT_STANDARD_DERIVATIVES\n float dx = dFdx(depth);\n float dy = dFdy(depth);\n moment2 += 0.25*(dx*dx+dy*dy);\n #endif\n gl_FragColor = vec4(moment1, moment2, 0.0, 1.0);\n#else\n #ifdef SUPPORT_STANDARD_DERIVATIVES\n float dx = dFdx(depth);\n float dy = dFdy(depth);\n depth += sqrt(dx*dx + dy*dy) * slopeScale + bias;\n #else\n depth += bias;\n #endif\n gl_FragColor = encodeFloat(depth * 0.5 + 0.5);\n#endif\n}\n@end\n@export clay.sm.debug_depth\nuniform sampler2D depthMap;\nvarying vec2 v_Texcoord;\n@import clay.util.decode_float\nvoid main() {\n vec4 tex = texture2D(depthMap, v_Texcoord);\n#ifdef USE_VSM\n gl_FragColor = vec4(tex.rgb, 1.0);\n#else\n float depth = decodeFloat(tex);\n gl_FragColor = vec4(depth, depth, depth, 1.0);\n#endif\n}\n@end\n@export clay.sm.distance.vertex\nuniform mat4 worldViewProjection : WORLDVIEWPROJECTION;\nuniform mat4 world : WORLD;\nattribute vec3 position : POSITION;\n@import clay.chunk.skinning_header\nvarying vec3 v_WorldPosition;\nvoid main (){\n vec4 P = vec4(position, 1.0);\n#ifdef SKINNING\n @import clay.chunk.skin_matrix\n P = skinMatrixWS * P;\n#endif\n#ifdef INSTANCING\n @import clay.chunk.instancing_matrix\n P = instanceMat * P;\n#endif\n gl_Position = worldViewProjection * P;\n v_WorldPosition = (world * P).xyz;\n}\n@end\n@export clay.sm.distance.fragment\nuniform vec3 lightPosition;\nuniform float range : 100;\nvarying vec3 v_WorldPosition;\n@import clay.util.encode_float\nvoid main(){\n float dist = distance(lightPosition, v_WorldPosition);\n#ifdef USE_VSM\n gl_FragColor = vec4(dist, dist * dist, 0.0, 0.0);\n#else\n dist = dist / range;\n gl_FragColor = encodeFloat(dist);\n#endif\n}\n@end\n@export clay.plugin.shadow_map_common\n@import clay.util.decode_float\nfloat tapShadowMap(sampler2D map, vec2 uv, float z){\n vec4 tex = texture2D(map, uv);\n return step(z, decodeFloat(tex) * 2.0 - 1.0);\n}\nfloat pcf(sampler2D map, vec2 uv, float z, float textureSize, vec2 scale) {\n float shadowContrib = tapShadowMap(map, uv, z);\n vec2 offset = vec2(1.0 / textureSize) * scale;\n#ifdef PCF_KERNEL_SIZE\n for (int _idx_ = 0; _idx_ < PCF_KERNEL_SIZE; _idx_++) {{\n shadowContrib += tapShadowMap(map, uv + offset * pcfKernel[_idx_], z);\n }}\n return shadowContrib / float(PCF_KERNEL_SIZE + 1);\n#else\n shadowContrib += tapShadowMap(map, uv+vec2(offset.x, 0.0), z);\n shadowContrib += tapShadowMap(map, uv+vec2(offset.x, offset.y), z);\n shadowContrib += tapShadowMap(map, uv+vec2(-offset.x, offset.y), z);\n shadowContrib += tapShadowMap(map, uv+vec2(0.0, offset.y), z);\n shadowContrib += tapShadowMap(map, uv+vec2(-offset.x, 0.0), z);\n shadowContrib += tapShadowMap(map, uv+vec2(-offset.x, -offset.y), z);\n shadowContrib += tapShadowMap(map, uv+vec2(offset.x, -offset.y), z);\n shadowContrib += tapShadowMap(map, uv+vec2(0.0, -offset.y), z);\n ret
var targets = ["px", "nx", "py", "ny", "pz", "nz"];
Shader["import"](shadowmapEssl);
function getDepthMaterialUniform(renderable, depthMaterial, symbol) {
  if (symbol === "alphaMap") {
    return renderable.material.get("diffuseMap");
  } else if (symbol === "alphaCutoff") {
    if (renderable.material.isDefined("fragment", "ALPHA_TEST") && renderable.material.get("diffuseMap")) {
      var alphaCutoff = renderable.material.get("alphaCutoff");
      return alphaCutoff || 0;
    }
    return 0;
  } else if (symbol === "uvRepeat") {
    return renderable.material.get("uvRepeat");
  } else if (symbol === "uvOffset") {
    return renderable.material.get("uvOffset");
  } else {
    return depthMaterial.get(symbol);
  }
}
function isDepthMaterialChanged(renderable, prevRenderable) {
  var matA = renderable.material;
  var matB = prevRenderable.material;
  return matA.get("diffuseMap") !== matB.get("diffuseMap") || (matA.get("alphaCutoff") || 0) !== (matB.get("alphaCutoff") || 0);
}
var ShadowMapPass = Base.extend(function() {
  return (
    /** @lends clay.prePass.ShadowMap# */
    {
      /**
       * Soft shadow technique.
       * Can be {@link clay.prePass.ShadowMap.PCF} or {@link clay.prePass.ShadowMap.VSM}
       * @type {number}
       */
      softShadow: ShadowMapPass.PCF,
      /**
       * Soft shadow blur size
       * @type {number}
       */
      shadowBlur: 1,
      lightFrustumBias: "auto",
      kernelPCF: new Float32Array([
        1,
        0,
        1,
        1,
        -1,
        1,
        0,
        1,
        -1,
        0,
        -1,
        -1,
        1,
        -1,
        0,
        -1
      ]),
      precision: "highp",
      _lastRenderNotCastShadow: false,
      _frameBuffer: new FrameBuffer(),
      _textures: {},
      _shadowMapNumber: {
        "POINT_LIGHT": 0,
        "DIRECTIONAL_LIGHT": 0,
        "SPOT_LIGHT": 0
      },
      _depthMaterials: {},
      _distanceMaterials: {},
      _receivers: [],
      _lightsCastShadow: [],
      _lightCameras: {},
      _lightMaterials: {},
      _texturePool: new TexturePool()
    }
  );
}, function() {
  this._gaussianPassH = new Pass({
    fragment: Shader.source("clay.compositor.gaussian_blur")
  });
  this._gaussianPassV = new Pass({
    fragment: Shader.source("clay.compositor.gaussian_blur")
  });
  this._gaussianPassH.setUniform("blurSize", this.shadowBlur);
  this._gaussianPassH.setUniform("blurDir", 0);
  this._gaussianPassV.setUniform("blurSize", this.shadowBlur);
  this._gaussianPassV.setUniform("blurDir", 1);
  this._outputDepthPass = new Pass({
    fragment: Shader.source("clay.sm.debug_depth")
  });
}, {
  /**
   * Render scene to shadow textures
   * @param  {clay.Renderer} renderer
   * @param  {clay.Scene} scene
   * @param  {clay.Camera} sceneCamera
   * @param  {boolean} [notUpdateScene=false]
   * @memberOf clay.prePass.ShadowMap.prototype
   */
  render: function(renderer, scene, sceneCamera, notUpdateScene) {
    if (!sceneCamera) {
      sceneCamera = scene.getMainCamera();
    }
    this.trigger("beforerender", this, renderer, scene, sceneCamera);
    this._renderShadowPass(renderer, scene, sceneCamera, notUpdateScene);
    this.trigger("afterrender", this, renderer, scene, sceneCamera);
  },
  /**
   * Debug rendering of shadow textures
   * @param  {clay.Renderer} renderer
   * @param  {number} size
   * @memberOf clay.prePass.ShadowMap.prototype
   */
  renderDebug: function(renderer, size) {
    renderer.saveClear();
    var viewport = renderer.viewport;
    var x = 0, y = 0;
    var width = size || viewport.width / 4;
    var height = width;
    if (this.softShadow === ShadowMapPass.VSM) {
      this._outputDepthPass.material.define("fragment", "USE_VSM");
    } else {
      this._outputDepthPass.material.undefine("fragment", "USE_VSM");
    }
    for (var name in this._textures) {
      var texture = this._textures[name];
      renderer.setViewport(x, y, width * texture.width / texture.height, height);
      this._outputDepthPass.setUniform("depthMap", texture);
      this._outputDepthPass.render(renderer);
      x += width * texture.width / texture.height;
    }
    renderer.setViewport(viewport);
    renderer.restoreClear();
  },
  _updateReceivers: function(renderer, mesh2) {
    if (mesh2.receiveShadow) {
      this._receivers.push(mesh2);
      mesh2.material.set("shadowEnabled", 1);
      mesh2.material.set("pcfKernel", this.kernelPCF);
    } else {
      mesh2.material.set("shadowEnabled", 0);
    }
    if (this.softShadow === ShadowMapPass.VSM) {
      mesh2.material.define("fragment", "USE_VSM");
      mesh2.material.undefine("fragment", "PCF_KERNEL_SIZE");
    } else {
      mesh2.material.undefine("fragment", "USE_VSM");
      var kernelPCF = this.kernelPCF;
      if (kernelPCF && kernelPCF.length) {
        mesh2.material.define("fragment", "PCF_KERNEL_SIZE", kernelPCF.length / 2);
      } else {
        mesh2.material.undefine("fragment", "PCF_KERNEL_SIZE");
      }
    }
  },
  _update: function(renderer, scene) {
    var self2 = this;
    scene.traverse(function(renderable) {
      if (renderable.isRenderable()) {
        self2._updateReceivers(renderer, renderable);
      }
    });
    for (var i = 0; i < scene.lights.length; i++) {
      var light = scene.lights[i];
      if (light.castShadow && !light.invisible) {
        this._lightsCastShadow.push(light);
      }
    }
  },
  _renderShadowPass: function(renderer, scene, sceneCamera, notUpdateScene) {
    for (var name in this._shadowMapNumber) {
      this._shadowMapNumber[name] = 0;
    }
    this._lightsCastShadow.length = 0;
    this._receivers.length = 0;
    var _gl = renderer.gl;
    if (!notUpdateScene) {
      scene.update();
    }
    if (sceneCamera) {
      sceneCamera.update();
    }
    scene.updateLights();
    this._update(renderer, scene);
    if (!this._lightsCastShadow.length && this._lastRenderNotCastShadow) {
      return;
    }
    this._lastRenderNotCastShadow = this._lightsCastShadow === 0;
    _gl.enable(_gl.DEPTH_TEST);
    _gl.depthMask(true);
    _gl.disable(_gl.BLEND);
    _gl.clearColor(1, 1, 1, 1);
    var spotLightShadowMaps = [];
    var spotLightMatrices = [];
    var directionalLightShadowMaps = [];
    var directionalLightMatrices = [];
    var shadowCascadeClips = [];
    var pointLightShadowMaps = [];
    var dirLightHasCascade;
    for (var i = 0; i < this._lightsCastShadow.length; i++) {
      var light = this._lightsCastShadow[i];
      if (light.type === "DIRECTIONAL_LIGHT") {
        if (dirLightHasCascade) {
          console.warn("Only one direectional light supported with shadow cascade");
          continue;
        }
        if (light.shadowCascade > 4) {
          console.warn("Support at most 4 cascade");
          continue;
        }
        if (light.shadowCascade > 1) {
          dirLightHasCascade = light;
        }
        this.renderDirectionalLightShadow(
          renderer,
          scene,
          sceneCamera,
          light,
          shadowCascadeClips,
          directionalLightMatrices,
          directionalLightShadowMaps
        );
      } else if (light.type === "SPOT_LIGHT") {
        this.renderSpotLightShadow(
          renderer,
          scene,
          light,
          spotLightMatrices,
          spotLightShadowMaps
        );
      } else if (light.type === "POINT_LIGHT") {
        this.renderPointLightShadow(
          renderer,
          scene,
          light,
          pointLightShadowMaps
        );
      }
      this._shadowMapNumber[light.type]++;
    }
    for (var lightType in this._shadowMapNumber) {
      var number = this._shadowMapNumber[lightType];
      var key = lightType + "_SHADOWMAP_COUNT";
      for (var i = 0; i < this._receivers.length; i++) {
        var mesh2 = this._receivers[i];
        var material = mesh2.material;
        if (material.fragmentDefines[key] !== number) {
          if (number > 0) {
            material.define("fragment", key, number);
          } else if (material.isDefined("fragment", key)) {
            material.undefine("fragment", key);
          }
        }
      }
    }
    for (var i = 0; i < this._receivers.length; i++) {
      var mesh2 = this._receivers[i];
      var material = mesh2.material;
      if (dirLightHasCascade) {
        material.define("fragment", "SHADOW_CASCADE", dirLightHasCascade.shadowCascade);
      } else {
        material.undefine("fragment", "SHADOW_CASCADE");
      }
    }
    var shadowUniforms = scene.shadowUniforms;
    function getSize(texture) {
      return texture.height;
    }
    if (directionalLightShadowMaps.length > 0) {
      var directionalLightShadowMapSizes = directionalLightShadowMaps.map(getSize);
      shadowUniforms.directionalLightShadowMaps = { value: directionalLightShadowMaps, type: "tv" };
      shadowUniforms.directionalLightMatrices = { value: directionalLightMatrices, type: "m4v" };
      shadowUniforms.directionalLightShadowMapSizes = { value: directionalLightShadowMapSizes, type: "1fv" };
      if (dirLightHasCascade) {
        var shadowCascadeClipsNear = shadowCascadeClips.slice();
        var shadowCascadeClipsFar = shadowCascadeClips.slice();
        shadowCascadeClipsNear.pop();
        shadowCascadeClipsFar.shift();
        shadowCascadeClipsNear.reverse();
        shadowCascadeClipsFar.reverse();
        directionalLightMatrices.reverse();
        shadowUniforms.shadowCascadeClipsNear = { value: shadowCascadeClipsNear, type: "1fv" };
        shadowUniforms.shadowCascadeClipsFar = { value: shadowCascadeClipsFar, type: "1fv" };
      }
    }
    if (spotLightShadowMaps.length > 0) {
      var spotLightShadowMapSizes = spotLightShadowMaps.map(getSize);
      var shadowUniforms = scene.shadowUniforms;
      shadowUniforms.spotLightShadowMaps = { value: spotLightShadowMaps, type: "tv" };
      shadowUniforms.spotLightMatrices = { value: spotLightMatrices, type: "m4v" };
      shadowUniforms.spotLightShadowMapSizes = { value: spotLightShadowMapSizes, type: "1fv" };
    }
    if (pointLightShadowMaps.length > 0) {
      shadowUniforms.pointLightShadowMaps = { value: pointLightShadowMaps, type: "tv" };
    }
  },
  renderDirectionalLightShadow: function() {
    var splitFrustum = new Frustum();
    var splitProjMatrix = new Matrix4();
    var cropBBox = new BoundingBox();
    var cropMatrix = new Matrix4();
    var lightViewMatrix = new Matrix4();
    var lightViewProjMatrix = new Matrix4();
    var lightProjMatrix = new Matrix4();
    return function(renderer, scene, sceneCamera, light, shadowCascadeClips, directionalLightMatrices, directionalLightShadowMaps) {
      var defaultShadowMaterial = this._getDepthMaterial(light);
      var passConfig = {
        getMaterial: function(renderable) {
          return renderable.shadowDepthMaterial || defaultShadowMaterial;
        },
        isMaterialChanged: isDepthMaterialChanged,
        getUniform: getDepthMaterialUniform,
        ifRender: function(renderable) {
          return renderable.castShadow;
        },
        sortCompare: Renderer.opaqueSortCompare
      };
      if (!scene.viewBoundingBoxLastFrame.isFinite()) {
        var boundingBox = scene.getBoundingBox();
        scene.viewBoundingBoxLastFrame.copy(boundingBox).applyTransform(sceneCamera.viewMatrix);
      }
      var clippedFar = Math.min(-scene.viewBoundingBoxLastFrame.min.z, sceneCamera.far);
      var clippedNear = Math.max(-scene.viewBoundingBoxLastFrame.max.z, sceneCamera.near);
      var lightCamera = this._getDirectionalLightCamera(light, scene, sceneCamera);
      var lvpMat4Arr = lightViewProjMatrix.array;
      lightProjMatrix.copy(lightCamera.projectionMatrix);
      mat4$2.invert(lightViewMatrix.array, lightCamera.worldTransform.array);
      mat4$2.multiply(lightViewMatrix.array, lightViewMatrix.array, sceneCamera.worldTransform.array);
      mat4$2.multiply(lvpMat4Arr, lightProjMatrix.array, lightViewMatrix.array);
      var clipPlanes = [];
      var isPerspective = sceneCamera instanceof Perspective;
      var scaleZ = (sceneCamera.near + sceneCamera.far) / (sceneCamera.near - sceneCamera.far);
      var offsetZ = 2 * sceneCamera.near * sceneCamera.far / (sceneCamera.near - sceneCamera.far);
      for (var i = 0; i <= light.shadowCascade; i++) {
        var clog = clippedNear * Math.pow(clippedFar / clippedNear, i / light.shadowCascade);
        var cuni = clippedNear + (clippedFar - clippedNear) * i / light.shadowCascade;
        var c = clog * light.cascadeSplitLogFactor + cuni * (1 - light.cascadeSplitLogFactor);
        clipPlanes.push(c);
        shadowCascadeClips.push(-(-c * scaleZ + offsetZ) / -c);
      }
      var texture = this._getTexture(light, light.shadowCascade);
      directionalLightShadowMaps.push(texture);
      var viewport = renderer.viewport;
      var _gl = renderer.gl;
      this._frameBuffer.attach(texture);
      this._frameBuffer.bind(renderer);
      _gl.clear(_gl.COLOR_BUFFER_BIT | _gl.DEPTH_BUFFER_BIT);
      for (var i = 0; i < light.shadowCascade; i++) {
        var nearPlane = clipPlanes[i];
        var farPlane = clipPlanes[i + 1];
        if (isPerspective) {
          mat4$2.perspective(splitProjMatrix.array, sceneCamera.fov / 180 * Math.PI, sceneCamera.aspect, nearPlane, farPlane);
        } else {
          mat4$2.ortho(
            splitProjMatrix.array,
            sceneCamera.left,
            sceneCamera.right,
            sceneCamera.bottom,
            sceneCamera.top,
            nearPlane,
            farPlane
          );
        }
        splitFrustum.setFromProjection(splitProjMatrix);
        splitFrustum.getTransformedBoundingBox(cropBBox, lightViewMatrix);
        cropBBox.applyProjection(lightProjMatrix);
        var _min = cropBBox.min.array;
        var _max = cropBBox.max.array;
        _min[0] = Math.max(_min[0], -1);
        _min[1] = Math.max(_min[1], -1);
        _max[0] = Math.min(_max[0], 1);
        _max[1] = Math.min(_max[1], 1);
        cropMatrix.ortho(_min[0], _max[0], _min[1], _max[1], 1, -1);
        lightCamera.projectionMatrix.multiplyLeft(cropMatrix);
        var shadowSize = light.shadowResolution || 512;
        renderer.setViewport((light.shadowCascade - i - 1) * shadowSize, 0, shadowSize, shadowSize, 1);
        var renderList = scene.updateRenderList(lightCamera);
        renderer.renderPass(renderList.opaque, lightCamera, passConfig);
        if (this.softShadow === ShadowMapPass.VSM) {
          this._gaussianFilter(renderer, texture, texture.width);
        }
        var matrix = new Matrix4();
        matrix.copy(lightCamera.viewMatrix).multiplyLeft(lightCamera.projectionMatrix);
        directionalLightMatrices.push(matrix.array);
        lightCamera.projectionMatrix.copy(lightProjMatrix);
      }
      this._frameBuffer.unbind(renderer);
      renderer.setViewport(viewport);
    };
  }(),
  renderSpotLightShadow: function(renderer, scene, light, spotLightMatrices, spotLightShadowMaps) {
    var texture = this._getTexture(light);
    var lightCamera = this._getSpotLightCamera(light);
    var _gl = renderer.gl;
    this._frameBuffer.attach(texture);
    this._frameBuffer.bind(renderer);
    _gl.clear(_gl.COLOR_BUFFER_BIT | _gl.DEPTH_BUFFER_BIT);
    var defaultShadowMaterial = this._getDepthMaterial(light);
    var passConfig = {
      getMaterial: function(renderable) {
        return renderable.shadowDepthMaterial || defaultShadowMaterial;
      },
      isMaterialChanged: isDepthMaterialChanged,
      getUniform: getDepthMaterialUniform,
      ifRender: function(renderable) {
        return renderable.castShadow;
      },
      sortCompare: Renderer.opaqueSortCompare
    };
    var renderList = scene.updateRenderList(lightCamera);
    renderer.renderPass(renderList.opaque, lightCamera, passConfig);
    this._frameBuffer.unbind(renderer);
    if (this.softShadow === ShadowMapPass.VSM) {
      this._gaussianFilter(renderer, texture, texture.width);
    }
    var matrix = new Matrix4();
    matrix.copy(lightCamera.worldTransform).invert().multiplyLeft(lightCamera.projectionMatrix);
    spotLightShadowMaps.push(texture);
    spotLightMatrices.push(matrix.array);
  },
  renderPointLightShadow: function(renderer, scene, light, pointLightShadowMaps) {
    var texture = this._getTexture(light);
    var _gl = renderer.gl;
    pointLightShadowMaps.push(texture);
    var defaultShadowMaterial = this._getDepthMaterial(light);
    var passConfig = {
      getMaterial: function(renderable) {
        return renderable.shadowDepthMaterial || defaultShadowMaterial;
      },
      getUniform: getDepthMaterialUniform,
      sortCompare: Renderer.opaqueSortCompare
    };
    var renderListEachSide = {
      px: [],
      py: [],
      pz: [],
      nx: [],
      ny: [],
      nz: []
    };
    var bbox = new BoundingBox();
    var lightWorldPosition = light.getWorldPosition().array;
    var lightBBox = new BoundingBox();
    var range = light.range;
    lightBBox.min.setArray(lightWorldPosition);
    lightBBox.max.setArray(lightWorldPosition);
    var extent = new Vector3(range, range, range);
    lightBBox.max.add(extent);
    lightBBox.min.sub(extent);
    var targetsNeedRender = { px: false, py: false, pz: false, nx: false, ny: false, nz: false };
    scene.traverse(function(renderable) {
      if (renderable.isRenderable() && renderable.castShadow) {
        var geometry = renderable.geometry;
        if (!geometry.boundingBox) {
          for (var i2 = 0; i2 < targets.length; i2++) {
            renderListEachSide[targets[i2]].push(renderable);
          }
          return;
        }
        bbox.transformFrom(geometry.boundingBox, renderable.worldTransform);
        if (!bbox.intersectBoundingBox(lightBBox)) {
          return;
        }
        bbox.updateVertices();
        for (var i2 = 0; i2 < targets.length; i2++) {
          targetsNeedRender[targets[i2]] = false;
        }
        for (var i2 = 0; i2 < 8; i2++) {
          var vtx = bbox.vertices[i2];
          var x = vtx[0] - lightWorldPosition[0];
          var y = vtx[1] - lightWorldPosition[1];
          var z = vtx[2] - lightWorldPosition[2];
          var absx = Math.abs(x);
          var absy = Math.abs(y);
          var absz = Math.abs(z);
          if (absx > absy) {
            if (absx > absz) {
              targetsNeedRender[x > 0 ? "px" : "nx"] = true;
            } else {
              targetsNeedRender[z > 0 ? "pz" : "nz"] = true;
            }
          } else {
            if (absy > absz) {
              targetsNeedRender[y > 0 ? "py" : "ny"] = true;
            } else {
              targetsNeedRender[z > 0 ? "pz" : "nz"] = true;
            }
          }
        }
        for (var i2 = 0; i2 < targets.length; i2++) {
          if (targetsNeedRender[targets[i2]]) {
            renderListEachSide[targets[i2]].push(renderable);
          }
        }
      }
    });
    for (var i = 0; i < 6; i++) {
      var target = targets[i];
      var camera2 = this._getPointLightCamera(light, target);
      this._frameBuffer.attach(texture, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i);
      this._frameBuffer.bind(renderer);
      _gl.clear(_gl.COLOR_BUFFER_BIT | _gl.DEPTH_BUFFER_BIT);
      renderer.renderPass(renderListEachSide[target], camera2, passConfig);
    }
    this._frameBuffer.unbind(renderer);
  },
  _getDepthMaterial: function(light) {
    var shadowMaterial = this._lightMaterials[light.__uid__];
    var isPointLight = light.type === "POINT_LIGHT";
    if (!shadowMaterial) {
      var shaderPrefix = isPointLight ? "clay.sm.distance." : "clay.sm.depth.";
      shadowMaterial = new Material({
        precision: this.precision,
        shader: new Shader(Shader.source(shaderPrefix + "vertex"), Shader.source(shaderPrefix + "fragment"))
      });
      this._lightMaterials[light.__uid__] = shadowMaterial;
    }
    if (light.shadowSlopeScale != null) {
      shadowMaterial.setUniform("slopeScale", light.shadowSlopeScale);
    }
    if (light.shadowBias != null) {
      shadowMaterial.setUniform("bias", light.shadowBias);
    }
    if (this.softShadow === ShadowMapPass.VSM) {
      shadowMaterial.define("fragment", "USE_VSM");
    } else {
      shadowMaterial.undefine("fragment", "USE_VSM");
    }
    if (isPointLight) {
      shadowMaterial.set("lightPosition", light.getWorldPosition().array);
      shadowMaterial.set("range", light.range);
    }
    return shadowMaterial;
  },
  _gaussianFilter: function(renderer, texture, size) {
    var parameter = {
      width: size,
      height: size,
      type: Texture.FLOAT
    };
    var tmpTexture = this._texturePool.get(parameter);
    this._frameBuffer.attach(tmpTexture);
    this._frameBuffer.bind(renderer);
    this._gaussianPassH.setUniform("texture", texture);
    this._gaussianPassH.setUniform("textureWidth", size);
    this._gaussianPassH.render(renderer);
    this._frameBuffer.attach(texture);
    this._gaussianPassV.setUniform("texture", tmpTexture);
    this._gaussianPassV.setUniform("textureHeight", size);
    this._gaussianPassV.render(renderer);
    this._frameBuffer.unbind(renderer);
    this._texturePool.put(tmpTexture);
  },
  _getTexture: function(light, cascade) {
    var key = light.__uid__;
    var texture = this._textures[key];
    var resolution = light.shadowResolution || 512;
    cascade = cascade || 1;
    if (!texture) {
      if (light.type === "POINT_LIGHT") {
        texture = new TextureCube();
      } else {
        texture = new Texture2D();
      }
      texture.width = resolution * cascade;
      texture.height = resolution;
      if (this.softShadow === ShadowMapPass.VSM) {
        texture.type = Texture.FLOAT;
        texture.anisotropic = 4;
      } else {
        texture.minFilter = glenum.NEAREST;
        texture.magFilter = glenum.NEAREST;
        texture.useMipmap = false;
      }
      this._textures[key] = texture;
    }
    return texture;
  },
  _getPointLightCamera: function(light, target) {
    if (!this._lightCameras.point) {
      this._lightCameras.point = {
        px: new Perspective(),
        nx: new Perspective(),
        py: new Perspective(),
        ny: new Perspective(),
        pz: new Perspective(),
        nz: new Perspective()
      };
    }
    var camera2 = this._lightCameras.point[target];
    camera2.far = light.range;
    camera2.fov = 90;
    camera2.position.set(0, 0, 0);
    switch (target) {
      case "px":
        camera2.lookAt(Vector3.POSITIVE_X, Vector3.NEGATIVE_Y);
        break;
      case "nx":
        camera2.lookAt(Vector3.NEGATIVE_X, Vector3.NEGATIVE_Y);
        break;
      case "py":
        camera2.lookAt(Vector3.POSITIVE_Y, Vector3.POSITIVE_Z);
        break;
      case "ny":
        camera2.lookAt(Vector3.NEGATIVE_Y, Vector3.NEGATIVE_Z);
        break;
      case "pz":
        camera2.lookAt(Vector3.POSITIVE_Z, Vector3.NEGATIVE_Y);
        break;
      case "nz":
        camera2.lookAt(Vector3.NEGATIVE_Z, Vector3.NEGATIVE_Y);
        break;
    }
    light.getWorldPosition(camera2.position);
    camera2.update();
    return camera2;
  },
  _getDirectionalLightCamera: function() {
    var lightViewMatrix = new Matrix4();
    var sceneViewBoundingBox = new BoundingBox();
    var lightViewBBox = new BoundingBox();
    return function(light, scene, sceneCamera) {
      if (!this._lightCameras.directional) {
        this._lightCameras.directional = new Orthographic();
      }
      var camera2 = this._lightCameras.directional;
      sceneViewBoundingBox.copy(scene.viewBoundingBoxLastFrame);
      sceneViewBoundingBox.intersection(sceneCamera.frustum.boundingBox);
      camera2.position.copy(sceneViewBoundingBox.min).add(sceneViewBoundingBox.max).scale(0.5).transformMat4(sceneCamera.worldTransform);
      camera2.rotation.copy(light.rotation);
      camera2.scale.copy(light.scale);
      camera2.updateWorldTransform();
      Matrix4.invert(lightViewMatrix, camera2.worldTransform);
      Matrix4.multiply(lightViewMatrix, lightViewMatrix, sceneCamera.worldTransform);
      lightViewBBox.copy(sceneViewBoundingBox).applyTransform(lightViewMatrix);
      var min = lightViewBBox.min.array;
      var max = lightViewBBox.max.array;
      camera2.position.set((min[0] + max[0]) / 2, (min[1] + max[1]) / 2, max[2]).transformMat4(camera2.worldTransform);
      camera2.near = 0;
      camera2.far = -min[2] + max[2];
      if (isNaN(this.lightFrustumBias)) {
        camera2.far *= 4;
      } else {
        camera2.far += this.lightFrustumBias;
      }
      camera2.left = min[0];
      camera2.right = max[0];
      camera2.top = max[1];
      camera2.bottom = min[1];
      camera2.update(true);
      return camera2;
    };
  }(),
  _getSpotLightCamera: function(light) {
    if (!this._lightCameras.spot) {
      this._lightCameras.spot = new Perspective();
    }
    var camera2 = this._lightCameras.spot;
    camera2.fov = light.penumbraAngle * 2;
    camera2.far = light.range;
    camera2.worldTransform.copy(light.worldTransform);
    camera2.updateProjectionMatrix();
    mat4$2.invert(camera2.viewMatrix.array, camera2.worldTransform.array);
    return camera2;
  },
  /**
   * @param  {clay.Renderer|WebGLRenderingContext} [renderer]
   * @memberOf clay.prePass.ShadowMap.prototype
   */
  // PENDING Renderer or WebGLRenderingContext
  dispose: function(renderer) {
    var _gl = renderer.gl || renderer;
    if (this._frameBuffer) {
      this._frameBuffer.dispose(_gl);
    }
    for (var name in this._textures) {
      this._textures[name].dispose(_gl);
    }
    this._texturePool.clear(renderer.gl);
    this._depthMaterials = {};
    this._distanceMaterials = {};
    this._textures = {};
    this._lightCameras = {};
    this._shadowMapNumber = {
      "POINT_LIGHT": 0,
      "DIRECTIONAL_LIGHT": 0,
      "SPOT_LIGHT": 0
    };
    this._meshMaterials = {};
    for (var i = 0; i < this._receivers.length; i++) {
      var mesh2 = this._receivers[i];
      if (mesh2.material) {
        var material = mesh2.material;
        material.undefine("fragment", "POINT_LIGHT_SHADOW_COUNT");
        material.undefine("fragment", "DIRECTIONAL_LIGHT_SHADOW_COUNT");
        material.undefine("fragment", "AMBIENT_LIGHT_SHADOW_COUNT");
        material.set("shadowEnabled", 0);
      }
    }
    this._receivers = [];
    this._lightsCastShadow = [];
  }
});
ShadowMapPass.VSM = 1;
ShadowMapPass.PCF = 2;
var CompositorNode = Base.extend(
  function() {
    return (
      /** @lends clay.compositor.CompositorNode# */
      {
        /**
         * @type {string}
         */
        name: "",
        /**
         * Input links, will be updated by the graph
         * @example:
         *     inputName: {
         *         node: someNode,
         *         pin: 'xxxx'
         *     }
         * @type {Object}
         */
        inputLinks: {},
        /**
         * Output links, will be updated by the graph
         * @example:
         *     outputName: {
         *         node: someNode,
         *         pin: 'xxxx'
         *     }
         * @type {Object}
         */
        outputLinks: {},
        // Save the output texture of previous frame
        // Will be used when there exist a circular reference
        _prevOutputTextures: {},
        _outputTextures: {},
        // Example: { name: 2 }
        _outputReferences: {},
        _rendering: false,
        // If rendered in this frame
        _rendered: false,
        _compositor: null
      }
    );
  },
  /** @lends clay.compositor.CompositorNode.prototype */
  {
    // TODO Remove parameter function callback
    updateParameter: function(outputName, renderer) {
      var outputInfo = this.outputs[outputName];
      var parameters = outputInfo.parameters;
      var parametersCopy = outputInfo._parametersCopy;
      if (!parametersCopy) {
        parametersCopy = outputInfo._parametersCopy = {};
      }
      if (parameters) {
        for (var key in parameters) {
          if (key !== "width" && key !== "height") {
            parametersCopy[key] = parameters[key];
          }
        }
      }
      var width, height;
      if (parameters.width instanceof Function) {
        width = parameters.width.call(this, renderer);
      } else {
        width = parameters.width;
      }
      if (parameters.height instanceof Function) {
        height = parameters.height.call(this, renderer);
      } else {
        height = parameters.height;
      }
      if (parametersCopy.width !== width || parametersCopy.height !== height) {
        if (this._outputTextures[outputName]) {
          this._outputTextures[outputName].dispose(renderer.gl);
        }
      }
      parametersCopy.width = width;
      parametersCopy.height = height;
      return parametersCopy;
    },
    /**
     * Set parameter
     * @param {string} name
     * @param {} value
     */
    setParameter: function(name, value) {
    },
    /**
     * Get parameter value
     * @param  {string} name
     * @return {}
     */
    getParameter: function(name) {
    },
    /**
     * Set parameters
     * @param {Object} obj
     */
    setParameters: function(obj) {
      for (var name in obj) {
        this.setParameter(name, obj[name]);
      }
    },
    render: function() {
    },
    getOutput: function(renderer, name) {
      if (name == null) {
        name = renderer;
        return this._outputTextures[name];
      }
      var outputInfo = this.outputs[name];
      if (!outputInfo) {
        return;
      }
      if (this._rendered) {
        if (outputInfo.outputLastFrame) {
          return this._prevOutputTextures[name];
        } else {
          return this._outputTextures[name];
        }
      } else if (
        // TODO
        this._rendering
      ) {
        if (!this._prevOutputTextures[name]) {
          this._prevOutputTextures[name] = this._compositor.allocateTexture(outputInfo.parameters || {});
        }
        return this._prevOutputTextures[name];
      }
      this.render(renderer);
      return this._outputTextures[name];
    },
    removeReference: function(outputName) {
      this._outputReferences[outputName]--;
      if (this._outputReferences[outputName] === 0) {
        var outputInfo = this.outputs[outputName];
        if (outputInfo.keepLastFrame) {
          if (this._prevOutputTextures[outputName]) {
            this._compositor.releaseTexture(this._prevOutputTextures[outputName]);
          }
          this._prevOutputTextures[outputName] = this._outputTextures[outputName];
        } else {
          this._compositor.releaseTexture(this._outputTextures[outputName]);
        }
      }
    },
    link: function(inputPinName, fromNode, fromPinName) {
      this.inputLinks[inputPinName] = {
        node: fromNode,
        pin: fromPinName
      };
      if (!fromNode.outputLinks[fromPinName]) {
        fromNode.outputLinks[fromPinName] = [];
      }
      fromNode.outputLinks[fromPinName].push({
        node: this,
        pin: inputPinName
      });
      this.pass.material.enableTexture(inputPinName);
    },
    clear: function() {
      this.inputLinks = {};
      this.outputLinks = {};
    },
    updateReference: function(outputName) {
      if (!this._rendering) {
        this._rendering = true;
        for (var inputName in this.inputLinks) {
          var link = this.inputLinks[inputName];
          link.node.updateReference(link.pin);
        }
        this._rendering = false;
      }
      if (outputName) {
        this._outputReferences[outputName]++;
      }
    },
    beforeFrame: function() {
      this._rendered = false;
      for (var name in this.outputLinks) {
        this._outputReferences[name] = 0;
      }
    },
    afterFrame: function() {
      for (var name in this.outputLinks) {
        if (this._outputReferences[name] > 0) {
          var outputInfo = this.outputs[name];
          if (outputInfo.keepLastFrame) {
            if (this._prevOutputTextures[name]) {
              this._compositor.releaseTexture(this._prevOutputTextures[name]);
            }
            this._prevOutputTextures[name] = this._outputTextures[name];
          } else {
            this._compositor.releaseTexture(this._outputTextures[name]);
          }
        }
      }
    }
  }
);
var Graph = Base.extend(
  function() {
    return (
      /** @lends clay.compositor.Graph# */
      {
        /**
         * @type {Array.<clay.compositor.CompositorNode>}
         */
        nodes: []
      }
    );
  },
  /** @lends clay.compositor.Graph.prototype */
  {
    /**
     * Mark to update
     */
    dirty: function() {
      this._dirty = true;
    },
    /**
     * @param {clay.compositor.CompositorNode} node
     */
    addNode: function(node) {
      if (this.nodes.indexOf(node) >= 0) {
        return;
      }
      this.nodes.push(node);
      this._dirty = true;
    },
    /**
     * @param  {clay.compositor.CompositorNode|string} node
     */
    removeNode: function(node) {
      if (typeof node === "string") {
        node = this.getNodeByName(node);
      }
      var idx = this.nodes.indexOf(node);
      if (idx >= 0) {
        this.nodes.splice(idx, 1);
        this._dirty = true;
      }
    },
    /**
     * @param {string} name
     * @return {clay.compositor.CompositorNode}
     */
    getNodeByName: function(name) {
      for (var i = 0; i < this.nodes.length; i++) {
        if (this.nodes[i].name === name) {
          return this.nodes[i];
        }
      }
    },
    /**
     * Update links of graph
     */
    update: function() {
      for (var i = 0; i < this.nodes.length; i++) {
        this.nodes[i].clear();
      }
      for (var i = 0; i < this.nodes.length; i++) {
        var node = this.nodes[i];
        if (!node.inputs) {
          continue;
        }
        for (var inputName in node.inputs) {
          if (!node.inputs[inputName]) {
            continue;
          }
          if (node.pass && !node.pass.material.isUniformEnabled(inputName)) {
            console.warn("Pin " + node.name + "." + inputName + " not used.");
            continue;
          }
          var fromPinInfo = node.inputs[inputName];
          var fromPin = this.findPin(fromPinInfo);
          if (fromPin) {
            node.link(inputName, fromPin.node, fromPin.pin);
          } else {
            if (typeof fromPinInfo === "string") {
              console.warn("Node " + fromPinInfo + " not exist");
            } else {
              console.warn("Pin of " + fromPinInfo.node + "." + fromPinInfo.pin + " not exist");
            }
          }
        }
      }
    },
    findPin: function(input) {
      var node;
      if (typeof input === "string" || input instanceof CompositorNode) {
        input = {
          node: input
        };
      }
      if (typeof input.node === "string") {
        for (var i = 0; i < this.nodes.length; i++) {
          var tmp = this.nodes[i];
          if (tmp.name === input.node) {
            node = tmp;
          }
        }
      } else {
        node = input.node;
      }
      if (node) {
        var inputPin = input.pin;
        if (!inputPin) {
          if (node.outputs) {
            inputPin = Object.keys(node.outputs)[0];
          }
        }
        if (node.outputs[inputPin]) {
          return {
            node,
            pin: inputPin
          };
        }
      }
    }
  }
);
var Compositor = Graph.extend(
  function() {
    return {
      // Output node
      _outputs: [],
      _texturePool: new TexturePool(),
      _frameBuffer: new FrameBuffer({
        depthBuffer: false
      })
    };
  },
  /** @lends clay.compositor.Compositor.prototype */
  {
    addNode: function(node) {
      Graph.prototype.addNode.call(this, node);
      node._compositor = this;
    },
    /**
     * @param  {clay.Renderer} renderer
     */
    render: function(renderer, frameBuffer) {
      if (this._dirty) {
        this.update();
        this._dirty = false;
        this._outputs.length = 0;
        for (var i = 0; i < this.nodes.length; i++) {
          if (!this.nodes[i].outputs) {
            this._outputs.push(this.nodes[i]);
          }
        }
      }
      for (var i = 0; i < this.nodes.length; i++) {
        this.nodes[i].beforeFrame();
      }
      for (var i = 0; i < this._outputs.length; i++) {
        this._outputs[i].updateReference();
      }
      for (var i = 0; i < this._outputs.length; i++) {
        this._outputs[i].render(renderer, frameBuffer);
      }
      for (var i = 0; i < this.nodes.length; i++) {
        this.nodes[i].afterFrame();
      }
    },
    allocateTexture: function(parameters) {
      return this._texturePool.get(parameters);
    },
    releaseTexture: function(parameters) {
      this._texturePool.put(parameters);
    },
    getFrameBuffer: function() {
      return this._frameBuffer;
    },
    /**
     * Dispose compositor
     * @param {clay.Renderer} renderer
     */
    dispose: function(renderer) {
      this._texturePool.clear(renderer);
    }
  }
);
var SceneNode = CompositorNode.extend(
  /** @lends clay.compositor.SceneNode# */
  {
    name: "scene",
    /**
     * @type {clay.Scene}
     */
    scene: null,
    /**
     * @type {clay.Camera}
     */
    camera: null,
    /**
     * @type {boolean}
     */
    autoUpdateScene: true,
    /**
     * @type {boolean}
     */
    preZ: false
  },
  function() {
    this.frameBuffer = new FrameBuffer();
  },
  {
    render: function(renderer) {
      this._rendering = true;
      var _gl = renderer.gl;
      this.trigger("beforerender");
      var renderInfo;
      if (!this.outputs) {
        renderInfo = renderer.render(this.scene, this.camera, !this.autoUpdateScene, this.preZ);
      } else {
        var frameBuffer = this.frameBuffer;
        for (var name in this.outputs) {
          var parameters = this.updateParameter(name, renderer);
          var outputInfo = this.outputs[name];
          var texture = this._compositor.allocateTexture(parameters);
          this._outputTextures[name] = texture;
          var attachment = outputInfo.attachment || _gl.COLOR_ATTACHMENT0;
          if (typeof attachment == "string") {
            attachment = _gl[attachment];
          }
          frameBuffer.attach(texture, attachment);
        }
        frameBuffer.bind(renderer);
        var ext = renderer.getGLExtension("EXT_draw_buffers");
        if (ext) {
          var bufs = [];
          for (var attachment in this.outputs) {
            attachment = parseInt(attachment);
            if (attachment >= _gl.COLOR_ATTACHMENT0 && attachment <= _gl.COLOR_ATTACHMENT0 + 8) {
              bufs.push(attachment);
            }
          }
          ext.drawBuffersEXT(bufs);
        }
        renderer.saveClear();
        renderer.clearBit = glenum.DEPTH_BUFFER_BIT | glenum.COLOR_BUFFER_BIT;
        renderInfo = renderer.render(this.scene, this.camera, !this.autoUpdateScene, this.preZ);
        renderer.restoreClear();
        frameBuffer.unbind(renderer);
      }
      this.trigger("afterrender", renderInfo);
      this._rendering = false;
      this._rendered = true;
    }
  }
);
var TextureNode = CompositorNode.extend(function() {
  return (
    /** @lends clay.compositor.TextureNode# */
    {
      /**
       * @type {clay.Texture2D}
       */
      texture: null,
      // Texture node must have output without parameters
      outputs: {
        color: {}
      }
    }
  );
}, function() {
}, {
  getOutput: function(renderer, name) {
    return this.texture;
  },
  // Do nothing
  beforeFrame: function() {
  },
  afterFrame: function() {
  }
});
var FilterNode = CompositorNode.extend(
  function() {
    return (
      /** @lends clay.compositor.FilterNode# */
      {
        /**
         * @type {string}
         */
        name: "",
        /**
         * @type {Object}
         */
        inputs: {},
        /**
         * @type {Object}
         */
        outputs: null,
        /**
         * @type {string}
         */
        shader: "",
        /**
         * Input links, will be updated by the graph
         * @example:
         *     inputName: {
         *         node: someNode,
         *         pin: 'xxxx'
         *     }
         * @type {Object}
         */
        inputLinks: {},
        /**
         * Output links, will be updated by the graph
         * @example:
         *     outputName: {
         *         node: someNode,
         *         pin: 'xxxx'
         *     }
         * @type {Object}
         */
        outputLinks: {},
        /**
         * @type {clay.compositor.Pass}
         */
        pass: null,
        // Save the output texture of previous frame
        // Will be used when there exist a circular reference
        _prevOutputTextures: {},
        _outputTextures: {},
        // Example: { name: 2 }
        _outputReferences: {},
        _rendering: false,
        // If rendered in this frame
        _rendered: false,
        _compositor: null
      }
    );
  },
  function() {
    var pass = new Pass({
      fragment: this.shader
    });
    this.pass = pass;
  },
  /** @lends clay.compositor.FilterNode.prototype */
  {
    /**
     * @param  {clay.Renderer} renderer
     */
    render: function(renderer, frameBuffer) {
      this.trigger("beforerender", renderer);
      this._rendering = true;
      var _gl = renderer.gl;
      for (var inputName in this.inputLinks) {
        var link = this.inputLinks[inputName];
        var inputTexture = link.node.getOutput(renderer, link.pin);
        this.pass.setUniform(inputName, inputTexture);
      }
      if (!this.outputs) {
        this.pass.outputs = null;
        this._compositor.getFrameBuffer().unbind(renderer);
        this.pass.render(renderer, frameBuffer);
      } else {
        this.pass.outputs = {};
        var attachedTextures = {};
        for (var name in this.outputs) {
          var parameters = this.updateParameter(name, renderer);
          if (isNaN(parameters.width)) {
            this.updateParameter(name, renderer);
          }
          var outputInfo = this.outputs[name];
          var texture = this._compositor.allocateTexture(parameters);
          this._outputTextures[name] = texture;
          var attachment = outputInfo.attachment || _gl.COLOR_ATTACHMENT0;
          if (typeof attachment === "string") {
            attachment = _gl[attachment];
          }
          attachedTextures[attachment] = texture;
        }
        this._compositor.getFrameBuffer().bind(renderer);
        for (var attachment in attachedTextures) {
          this._compositor.getFrameBuffer().attach(
            attachedTextures[attachment],
            attachment
          );
        }
        this.pass.render(renderer);
        this._compositor.getFrameBuffer().updateMipmap(renderer);
      }
      for (var inputName in this.inputLinks) {
        var link = this.inputLinks[inputName];
        link.node.removeReference(link.pin);
      }
      this._rendering = false;
      this._rendered = true;
      this.trigger("afterrender", renderer);
    },
    // TODO Remove parameter function callback
    updateParameter: function(outputName, renderer) {
      var outputInfo = this.outputs[outputName];
      var parameters = outputInfo.parameters;
      var parametersCopy = outputInfo._parametersCopy;
      if (!parametersCopy) {
        parametersCopy = outputInfo._parametersCopy = {};
      }
      if (parameters) {
        for (var key in parameters) {
          if (key !== "width" && key !== "height") {
            parametersCopy[key] = parameters[key];
          }
        }
      }
      var width, height;
      if (typeof parameters.width === "function") {
        width = parameters.width.call(this, renderer);
      } else {
        width = parameters.width;
      }
      if (typeof parameters.height === "function") {
        height = parameters.height.call(this, renderer);
      } else {
        height = parameters.height;
      }
      width = Math.ceil(width);
      height = Math.ceil(height);
      if (parametersCopy.width !== width || parametersCopy.height !== height) {
        if (this._outputTextures[outputName]) {
          this._outputTextures[outputName].dispose(renderer);
        }
      }
      parametersCopy.width = width;
      parametersCopy.height = height;
      return parametersCopy;
    },
    /**
     * Set parameter
     * @param {string} name
     * @param {} value
     */
    setParameter: function(name, value) {
      this.pass.setUniform(name, value);
    },
    /**
     * Get parameter value
     * @param  {string} name
     * @return {}
     */
    getParameter: function(name) {
      return this.pass.getUniform(name);
    },
    /**
     * Set parameters
     * @param {Object} obj
     */
    setParameters: function(obj) {
      for (var name in obj) {
        this.setParameter(name, obj[name]);
      }
    },
    // /**
    //  * Set shader code
    //  * @param {string} shaderStr
    //  */
    // setShader: function (shaderStr) {
    //     var material = this.pass.material;
    //     material.shader.setFragment(shaderStr);
    //     material.attachShader(material.shader, true);
    // },
    /**
     * Proxy of pass.material.define('fragment', xxx);
     * @param  {string} symbol
     * @param  {number} [val]
     */
    define: function(symbol, val) {
      this.pass.material.define("fragment", symbol, val);
    },
    /**
     * Proxy of pass.material.undefine('fragment', xxx)
     * @param  {string} symbol
     */
    undefine: function(symbol) {
      this.pass.material.undefine("fragment", symbol);
    },
    removeReference: function(outputName) {
      this._outputReferences[outputName]--;
      if (this._outputReferences[outputName] === 0) {
        var outputInfo = this.outputs[outputName];
        if (outputInfo.keepLastFrame) {
          if (this._prevOutputTextures[outputName]) {
            this._compositor.releaseTexture(this._prevOutputTextures[outputName]);
          }
          this._prevOutputTextures[outputName] = this._outputTextures[outputName];
        } else {
          this._compositor.releaseTexture(this._outputTextures[outputName]);
        }
      }
    },
    clear: function() {
      CompositorNode.prototype.clear.call(this);
      this.pass.material.disableTexturesAll();
    }
  }
);
const coloradjustEssl = "@export clay.compositor.coloradjust\nvarying vec2 v_Texcoord;\nuniform sampler2D texture;\nuniform float brightness : 0.0;\nuniform float contrast : 1.0;\nuniform float exposure : 0.0;\nuniform float gamma : 1.0;\nuniform float saturation : 1.0;\nconst vec3 w = vec3(0.2125, 0.7154, 0.0721);\nvoid main()\n{\n vec4 tex = texture2D( texture, v_Texcoord);\n vec3 color = clamp(tex.rgb + vec3(brightness), 0.0, 1.0);\n color = clamp( (color-vec3(0.5))*contrast+vec3(0.5), 0.0, 1.0);\n color = clamp( color * pow(2.0, exposure), 0.0, 1.0);\n color = clamp( pow(color, vec3(gamma)), 0.0, 1.0);\n float luminance = dot( color, w );\n color = mix(vec3(luminance), color, saturation);\n gl_FragColor = vec4(color, tex.a);\n}\n@end\n@export clay.compositor.brightness\nvarying vec2 v_Texcoord;\nuniform sampler2D texture;\nuniform float brightness : 0.0;\nvoid main()\n{\n vec4 tex = texture2D( texture, v_Texcoord);\n vec3 color = tex.rgb + vec3(brightness);\n gl_FragColor = vec4(color, tex.a);\n}\n@end\n@export clay.compositor.contrast\nvarying vec2 v_Texcoord;\nuniform sampler2D texture;\nuniform float contrast : 1.0;\nvoid main()\n{\n vec4 tex = texture2D( texture, v_Texcoord);\n vec3 color = (tex.rgb-vec3(0.5))*contrast+vec3(0.5);\n gl_FragColor = vec4(color, tex.a);\n}\n@end\n@export clay.compositor.exposure\nvarying vec2 v_Texcoord;\nuniform sampler2D texture;\nuniform float exposure : 0.0;\nvoid main()\n{\n vec4 tex = texture2D(texture, v_Texcoord);\n vec3 color = tex.rgb * pow(2.0, exposure);\n gl_FragColor = vec4(color, tex.a);\n}\n@end\n@export clay.compositor.gamma\nvarying vec2 v_Texcoord;\nuniform sampler2D texture;\nuniform float gamma : 1.0;\nvoid main()\n{\n vec4 tex = texture2D(texture, v_Texcoord);\n vec3 color = pow(tex.rgb, vec3(gamma));\n gl_FragColor = vec4(color, tex.a);\n}\n@end\n@export clay.compositor.saturation\nvarying vec2 v_Texcoord;\nuniform sampler2D texture;\nuniform float saturation : 1.0;\nconst vec3 w = vec3(0.2125, 0.7154, 0.0721);\nvoid main()\n{\n vec4 tex = texture2D(texture, v_Texcoord);\n vec3 color = tex.rgb;\n float luminance = dot(color, w);\n color = mix(vec3(luminance), color, saturation);\n gl_FragColor = vec4(color, tex.a);\n}\n@end";
const blurCode = "@export clay.compositor.kernel.gaussian_9\nfloat gaussianKernel[9];\ngaussianKernel[0] = 0.07;\ngaussianKernel[1] = 0.09;\ngaussianKernel[2] = 0.12;\ngaussianKernel[3] = 0.14;\ngaussianKernel[4] = 0.16;\ngaussianKernel[5] = 0.14;\ngaussianKernel[6] = 0.12;\ngaussianKernel[7] = 0.09;\ngaussianKernel[8] = 0.07;\n@end\n@export clay.compositor.kernel.gaussian_13\nfloat gaussianKernel[13];\ngaussianKernel[0] = 0.02;\ngaussianKernel[1] = 0.03;\ngaussianKernel[2] = 0.06;\ngaussianKernel[3] = 0.08;\ngaussianKernel[4] = 0.11;\ngaussianKernel[5] = 0.13;\ngaussianKernel[6] = 0.14;\ngaussianKernel[7] = 0.13;\ngaussianKernel[8] = 0.11;\ngaussianKernel[9] = 0.08;\ngaussianKernel[10] = 0.06;\ngaussianKernel[11] = 0.03;\ngaussianKernel[12] = 0.02;\n@end\n@export clay.compositor.gaussian_blur\n#define SHADER_NAME gaussian_blur\nuniform sampler2D texture;varying vec2 v_Texcoord;\nuniform float blurSize : 2.0;\nuniform vec2 textureSize : [512.0, 512.0];\nuniform float blurDir : 0.0;\n@import clay.util.rgbm\n@import clay.util.clamp_sample\nvoid main (void)\n{\n @import clay.compositor.kernel.gaussian_9\n vec2 off = blurSize / textureSize;\n off *= vec2(1.0 - blurDir, blurDir);\n vec4 sum = vec4(0.0);\n float weightAll = 0.0;\n for (int i = 0; i < 9; i++) {\n float w = gaussianKernel[i];\n vec4 texel = decodeHDR(clampSample(texture, v_Texcoord + float(i - 4) * off));\n sum += texel * w;\n weightAll += w;\n }\n gl_FragColor = encodeHDR(sum / max(weightAll, 0.01));\n}\n@end\n";
const lumEssl = "@export clay.compositor.hdr.log_lum\nvarying vec2 v_Texcoord;\nuniform sampler2D texture;\nconst vec3 w = vec3(0.2125, 0.7154, 0.0721);\n@import clay.util.rgbm\nvoid main()\n{\n vec4 tex = decodeHDR(texture2D(texture, v_Texcoord));\n float luminance = dot(tex.rgb, w);\n luminance = log(luminance + 0.001);\n gl_FragColor = encodeHDR(vec4(vec3(luminance), 1.0));\n}\n@end\n@export clay.compositor.hdr.lum_adaption\nvarying vec2 v_Texcoord;\nuniform sampler2D adaptedLum;\nuniform sampler2D currentLum;\nuniform float frameTime : 0.02;\n@import clay.util.rgbm\nvoid main()\n{\n float fAdaptedLum = decodeHDR(texture2D(adaptedLum, vec2(0.5, 0.5))).r;\n float fCurrentLum = exp(encodeHDR(texture2D(currentLum, vec2(0.5, 0.5))).r);\n fAdaptedLum += (fCurrentLum - fAdaptedLum) * (1.0 - pow(0.98, 30.0 * frameTime));\n gl_FragColor = encodeHDR(vec4(vec3(fAdaptedLum), 1.0));\n}\n@end\n@export clay.compositor.lum\nvarying vec2 v_Texcoord;\nuniform sampler2D texture;\nconst vec3 w = vec3(0.2125, 0.7154, 0.0721);\nvoid main()\n{\n vec4 tex = texture2D( texture, v_Texcoord );\n float luminance = dot(tex.rgb, w);\n gl_FragColor = vec4(vec3(luminance), 1.0);\n}\n@end";
const lutCode = "\n@export clay.compositor.lut\nvarying vec2 v_Texcoord;\nuniform sampler2D texture;\nuniform sampler2D lookup;\nvoid main()\n{\n vec4 tex = texture2D(texture, v_Texcoord);\n float blueColor = tex.b * 63.0;\n vec2 quad1;\n quad1.y = floor(floor(blueColor) / 8.0);\n quad1.x = floor(blueColor) - (quad1.y * 8.0);\n vec2 quad2;\n quad2.y = floor(ceil(blueColor) / 8.0);\n quad2.x = ceil(blueColor) - (quad2.y * 8.0);\n vec2 texPos1;\n texPos1.x = (quad1.x * 0.125) + 0.5/512.0 + ((0.125 - 1.0/512.0) * tex.r);\n texPos1.y = (quad1.y * 0.125) + 0.5/512.0 + ((0.125 - 1.0/512.0) * tex.g);\n vec2 texPos2;\n texPos2.x = (quad2.x * 0.125) + 0.5/512.0 + ((0.125 - 1.0/512.0) * tex.r);\n texPos2.y = (quad2.y * 0.125) + 0.5/512.0 + ((0.125 - 1.0/512.0) * tex.g);\n vec4 newColor1 = texture2D(lookup, texPos1);\n vec4 newColor2 = texture2D(lookup, texPos2);\n vec4 newColor = mix(newColor1, newColor2, fract(blueColor));\n gl_FragColor = vec4(newColor.rgb, tex.w);\n}\n@end";
const vigentteEssl = "@export clay.compositor.vignette\n#define OUTPUT_ALPHA\nvarying vec2 v_Texcoord;\nuniform sampler2D texture;\nuniform float darkness: 1;\nuniform float offset: 1;\n@import clay.util.rgbm\nvoid main()\n{\n vec4 texel = decodeHDR(texture2D(texture, v_Texcoord));\n gl_FragColor.rgb = texel.rgb;\n vec2 uv = (v_Texcoord - vec2(0.5)) * vec2(offset);\n gl_FragColor = encodeHDR(vec4(mix(texel.rgb, vec3(1.0 - darkness), dot(uv, uv)), texel.a));\n}\n@end";
const outputCode = "@export clay.compositor.output\n#define OUTPUT_ALPHA\nvarying vec2 v_Texcoord;\nuniform sampler2D texture;\n@import clay.util.rgbm\nvoid main()\n{\n vec4 tex = decodeHDR(texture2D(texture, v_Texcoord));\n gl_FragColor.rgb = tex.rgb;\n#ifdef OUTPUT_ALPHA\n gl_FragColor.a = tex.a;\n#else\n gl_FragColor.a = 1.0;\n#endif\n gl_FragColor = encodeHDR(gl_FragColor);\n#ifdef PREMULTIPLY_ALPHA\n gl_FragColor.rgb *= gl_FragColor.a;\n#endif\n}\n@end";
const brightCode = "@export clay.compositor.bright\nuniform sampler2D texture;\nuniform float threshold : 1;\nuniform float scale : 1.0;\nuniform vec2 textureSize: [512, 512];\nvarying vec2 v_Texcoord;\nconst vec3 lumWeight = vec3(0.2125, 0.7154, 0.0721);\n@import clay.util.rgbm\nvec4 median(vec4 a, vec4 b, vec4 c)\n{\n return a + b + c - min(min(a, b), c) - max(max(a, b), c);\n}\nvoid main()\n{\n vec4 texel = decodeHDR(texture2D(texture, v_Texcoord));\n#ifdef ANTI_FLICKER\n vec3 d = 1.0 / textureSize.xyx * vec3(1.0, 1.0, 0.0);\n vec4 s1 = decodeHDR(texture2D(texture, v_Texcoord - d.xz));\n vec4 s2 = decodeHDR(texture2D(texture, v_Texcoord + d.xz));\n vec4 s3 = decodeHDR(texture2D(texture, v_Texcoord - d.zy));\n vec4 s4 = decodeHDR(texture2D(texture, v_Texcoord + d.zy));\n texel = median(median(texel, s1, s2), s3, s4);\n#endif\n float lum = dot(texel.rgb , lumWeight);\n vec4 color;\n if (lum > threshold && texel.a > 0.0)\n {\n color = vec4(texel.rgb * scale, texel.a * scale);\n }\n else\n {\n color = vec4(0.0);\n }\n gl_FragColor = encodeHDR(color);\n}\n@end\n";
const downsampleCode = "@export clay.compositor.downsample\nuniform sampler2D texture;\nuniform vec2 textureSize : [512, 512];\nvarying vec2 v_Texcoord;\n@import clay.util.rgbm\nfloat brightness(vec3 c)\n{\n return max(max(c.r, c.g), c.b);\n}\n@import clay.util.clamp_sample\nvoid main()\n{\n vec4 d = vec4(-1.0, -1.0, 1.0, 1.0) / textureSize.xyxy;\n#ifdef ANTI_FLICKER\n vec3 s1 = decodeHDR(clampSample(texture, v_Texcoord + d.xy)).rgb;\n vec3 s2 = decodeHDR(clampSample(texture, v_Texcoord + d.zy)).rgb;\n vec3 s3 = decodeHDR(clampSample(texture, v_Texcoord + d.xw)).rgb;\n vec3 s4 = decodeHDR(clampSample(texture, v_Texcoord + d.zw)).rgb;\n float s1w = 1.0 / (brightness(s1) + 1.0);\n float s2w = 1.0 / (brightness(s2) + 1.0);\n float s3w = 1.0 / (brightness(s3) + 1.0);\n float s4w = 1.0 / (brightness(s4) + 1.0);\n float oneDivideSum = 1.0 / (s1w + s2w + s3w + s4w);\n vec4 color = vec4(\n (s1 * s1w + s2 * s2w + s3 * s3w + s4 * s4w) * oneDivideSum,\n 1.0\n );\n#else\n vec4 color = decodeHDR(clampSample(texture, v_Texcoord + d.xy));\n color += decodeHDR(clampSample(texture, v_Texcoord + d.zy));\n color += decodeHDR(clampSample(texture, v_Texcoord + d.xw));\n color += decodeHDR(clampSample(texture, v_Texcoord + d.zw));\n color *= 0.25;\n#endif\n gl_FragColor = encodeHDR(color);\n}\n@end";
const upsampleCode = "\n@export clay.compositor.upsample\n#define HIGH_QUALITY\nuniform sampler2D texture;\nuniform vec2 textureSize : [512, 512];\nuniform float sampleScale: 0.5;\nvarying vec2 v_Texcoord;\n@import clay.util.rgbm\n@import clay.util.clamp_sample\nvoid main()\n{\n#ifdef HIGH_QUALITY\n vec4 d = vec4(1.0, 1.0, -1.0, 0.0) / textureSize.xyxy * sampleScale;\n vec4 s;\n s = decodeHDR(clampSample(texture, v_Texcoord - d.xy));\n s += decodeHDR(clampSample(texture, v_Texcoord - d.wy)) * 2.0;\n s += decodeHDR(clampSample(texture, v_Texcoord - d.zy));\n s += decodeHDR(clampSample(texture, v_Texcoord + d.zw)) * 2.0;\n s += decodeHDR(clampSample(texture, v_Texcoord )) * 4.0;\n s += decodeHDR(clampSample(texture, v_Texcoord + d.xw)) * 2.0;\n s += decodeHDR(clampSample(texture, v_Texcoord + d.zy));\n s += decodeHDR(clampSample(texture, v_Texcoord + d.wy)) * 2.0;\n s += decodeHDR(clampSample(texture, v_Texcoord + d.xy));\n gl_FragColor = encodeHDR(s / 16.0);\n#else\n vec4 d = vec4(-1.0, -1.0, +1.0, +1.0) / textureSize.xyxy;\n vec4 s;\n s = decodeHDR(clampSample(texture, v_Texcoord + d.xy));\n s += decodeHDR(clampSample(texture, v_Texcoord + d.zy));\n s += decodeHDR(clampSample(texture, v_Texcoord + d.xw));\n s += decodeHDR(clampSample(texture, v_Texcoord + d.zw));\n gl_FragColor = encodeHDR(s / 4.0);\n#endif\n}\n@end";
const hdrCode = "@export clay.compositor.hdr.composite\n#define TONEMAPPING\nuniform sampler2D texture;\n#ifdef BLOOM_ENABLED\nuniform sampler2D bloom;\n#endif\n#ifdef LENSFLARE_ENABLED\nuniform sampler2D lensflare;\nuniform sampler2D lensdirt;\n#endif\n#ifdef LUM_ENABLED\nuniform sampler2D lum;\n#endif\n#ifdef LUT_ENABLED\nuniform sampler2D lut;\n#endif\n#ifdef COLOR_CORRECTION\nuniform float brightness : 0.0;\nuniform float contrast : 1.0;\nuniform float saturation : 1.0;\n#endif\n#ifdef VIGNETTE\nuniform float vignetteDarkness: 1.0;\nuniform float vignetteOffset: 1.0;\n#endif\nuniform float exposure : 1.0;\nuniform float bloomIntensity : 0.25;\nuniform float lensflareIntensity : 1;\nvarying vec2 v_Texcoord;\n@import clay.util.srgb\nvec3 ACESToneMapping(vec3 color)\n{\n const float A = 2.51;\n const float B = 0.03;\n const float C = 2.43;\n const float D = 0.59;\n const float E = 0.14;\n return (color * (A * color + B)) / (color * (C * color + D) + E);\n}\nfloat eyeAdaption(float fLum)\n{\n return mix(0.2, fLum, 0.5);\n}\n#ifdef LUT_ENABLED\nvec3 lutTransform(vec3 color) {\n float blueColor = color.b * 63.0;\n vec2 quad1;\n quad1.y = floor(floor(blueColor) / 8.0);\n quad1.x = floor(blueColor) - (quad1.y * 8.0);\n vec2 quad2;\n quad2.y = floor(ceil(blueColor) / 8.0);\n quad2.x = ceil(blueColor) - (quad2.y * 8.0);\n vec2 texPos1;\n texPos1.x = (quad1.x * 0.125) + 0.5/512.0 + ((0.125 - 1.0/512.0) * color.r);\n texPos1.y = (quad1.y * 0.125) + 0.5/512.0 + ((0.125 - 1.0/512.0) * color.g);\n vec2 texPos2;\n texPos2.x = (quad2.x * 0.125) + 0.5/512.0 + ((0.125 - 1.0/512.0) * color.r);\n texPos2.y = (quad2.y * 0.125) + 0.5/512.0 + ((0.125 - 1.0/512.0) * color.g);\n vec4 newColor1 = texture2D(lut, texPos1);\n vec4 newColor2 = texture2D(lut, texPos2);\n vec4 newColor = mix(newColor1, newColor2, fract(blueColor));\n return newColor.rgb;\n}\n#endif\n@import clay.util.rgbm\nvoid main()\n{\n vec4 texel = vec4(0.0);\n vec4 originalTexel = vec4(0.0);\n#ifdef TEXTURE_ENABLED\n texel = decodeHDR(texture2D(texture, v_Texcoord));\n originalTexel = texel;\n#endif\n#ifdef BLOOM_ENABLED\n vec4 bloomTexel = decodeHDR(texture2D(bloom, v_Texcoord));\n texel.rgb += bloomTexel.rgb * bloomIntensity;\n texel.a += bloomTexel.a * bloomIntensity;\n#endif\n#ifdef LENSFLARE_ENABLED\n texel += decodeHDR(texture2D(lensflare, v_Texcoord)) * texture2D(lensdirt, v_Texcoord) * lensflareIntensity;\n#endif\n texel.a = min(texel.a, 1.0);\n#ifdef LUM_ENABLED\n float fLum = texture2D(lum, vec2(0.5, 0.5)).r;\n float adaptedLumDest = 3.0 / (max(0.1, 1.0 + 10.0*eyeAdaption(fLum)));\n float exposureBias = adaptedLumDest * exposure;\n#else\n float exposureBias = exposure;\n#endif\n#ifdef TONEMAPPING\n texel.rgb *= exposureBias;\n texel.rgb = ACESToneMapping(texel.rgb);\n#endif\n texel = linearTosRGB(texel);\n#ifdef LUT_ENABLED\n texel.rgb = lutTransform(clamp(texel.rgb,vec3(0.0),vec3(1.0)));\n#endif\n#ifdef COLOR_CORRECTION\n texel.rgb = clamp(texel.rgb + vec3(brightness), 0.0, 1.0);\n texel.rgb = clamp((texel.rgb - vec3(0.5))*contrast+vec3(0.5), 0.0, 1.0);\n float lum = dot(texel.rgb, vec3(0.2125, 0.7154, 0.0721));\n texel.rgb = mix(vec3(lum), texel.rgb, saturation);\n#endif\n#ifdef VIGNETTE\n vec2 uv = (v_Texcoord - vec2(0.5)) * vec2(vignetteOffset);\n texel.rgb = mix(texel.rgb, vec3(1.0 - vignetteDarkness), dot(uv, uv));\n#endif\n gl_FragColor = encodeHDR(texel);\n#ifdef DEBUG\n #if DEBUG == 1\n gl_FragColor = encodeHDR(decodeHDR(texture2D(texture, v_Texcoord)));\n #elif DEBUG == 2\n gl_FragColor = encodeHDR(decodeHDR(texture2D(bloom, v_Texcoord)) * bloomIntensity);\n #elif DEBUG == 3\n gl_FragColor = encodeHDR(decodeHDR(texture2D(lensflare, v_Texcoord) * lensflareIntensity));\n #endif\n#endif\n if (originalTexel.a <= 0.01 && gl_FragColor.a > 1e-5) {\n gl_FragColor.a = dot(gl_FragColor.rgb, vec3(0.2125, 0.7154, 0.0721));\n }\n#ifdef PREMULTIPLY_ALPHA\n gl_FragColor.rgb *= gl_FragColor.a;\n#endif\n}\n@end";
const lensflareEssl = "@export clay.compositor.lensflare\n#define SAMPLE_NUMBER 8\nuniform sampler2D texture;\nuniform sampler2D lenscolor;\nuniform vec2 textureSize : [512, 512];\nuniform float dispersal : 0.3;\nuniform float haloWidth : 0.4;\nuniform float distortion : 1.0;\nvarying vec2 v_Texcoord;\n@import clay.util.rgbm\nvec4 textureDistorted(\n in vec2 texcoord,\n in vec2 direction,\n in vec3 distortion\n) {\n return vec4(\n decodeHDR(texture2D(texture, texcoord + direction * distortion.r)).r,\n decodeHDR(texture2D(texture, texcoord + direction * distortion.g)).g,\n decodeHDR(texture2D(texture, texcoord + direction * distortion.b)).b,\n 1.0\n );\n}\nvoid main()\n{\n vec2 texcoord = -v_Texcoord + vec2(1.0); vec2 textureOffset = 1.0 / textureSize;\n vec2 ghostVec = (vec2(0.5) - texcoord) * dispersal;\n vec2 haloVec = normalize(ghostVec) * haloWidth;\n vec3 distortion = vec3(-textureOffset.x * distortion, 0.0, textureOffset.x * distortion);\n vec4 result = vec4(0.0);\n for (int i = 0; i < SAMPLE_NUMBER; i++)\n {\n vec2 offset = fract(texcoord + ghostVec * float(i));\n float weight = length(vec2(0.5) - offset) / length(vec2(0.5));\n weight = pow(1.0 - weight, 10.0);\n result += textureDistorted(offset, normalize(ghostVec), distortion) * weight;\n }\n result *= texture2D(lenscolor, vec2(length(vec2(0.5) - texcoord)) / length(vec2(0.5)));\n float weight = length(vec2(0.5) - fract(texcoord + haloVec)) / length(vec2(0.5));\n weight = pow(1.0 - weight, 10.0);\n vec2 offset = fract(texcoord + haloVec);\n result += textureDistorted(offset, normalize(ghostVec), distortion) * weight;\n gl_FragColor = result;\n}\n@end";
const blendCode = "@export clay.compositor.blend\n#define SHADER_NAME blend\n#ifdef TEXTURE1_ENABLED\nuniform sampler2D texture1;\nuniform float weight1 : 1.0;\n#endif\n#ifdef TEXTURE2_ENABLED\nuniform sampler2D texture2;\nuniform float weight2 : 1.0;\n#endif\n#ifdef TEXTURE3_ENABLED\nuniform sampler2D texture3;\nuniform float weight3 : 1.0;\n#endif\n#ifdef TEXTURE4_ENABLED\nuniform sampler2D texture4;\nuniform float weight4 : 1.0;\n#endif\n#ifdef TEXTURE5_ENABLED\nuniform sampler2D texture5;\nuniform float weight5 : 1.0;\n#endif\n#ifdef TEXTURE6_ENABLED\nuniform sampler2D texture6;\nuniform float weight6 : 1.0;\n#endif\nvarying vec2 v_Texcoord;\n@import clay.util.rgbm\nvoid main()\n{\n vec4 tex = vec4(0.0);\n#ifdef TEXTURE1_ENABLED\n tex += decodeHDR(texture2D(texture1, v_Texcoord)) * weight1;\n#endif\n#ifdef TEXTURE2_ENABLED\n tex += decodeHDR(texture2D(texture2, v_Texcoord)) * weight2;\n#endif\n#ifdef TEXTURE3_ENABLED\n tex += decodeHDR(texture2D(texture3, v_Texcoord)) * weight3;\n#endif\n#ifdef TEXTURE4_ENABLED\n tex += decodeHDR(texture2D(texture4, v_Texcoord)) * weight4;\n#endif\n#ifdef TEXTURE5_ENABLED\n tex += decodeHDR(texture2D(texture5, v_Texcoord)) * weight5;\n#endif\n#ifdef TEXTURE6_ENABLED\n tex += decodeHDR(texture2D(texture6, v_Texcoord)) * weight6;\n#endif\n gl_FragColor = encodeHDR(tex);\n}\n@end";
const fxaaCode = "@export clay.compositor.fxaa\nuniform sampler2D texture;\nuniform vec4 viewport : VIEWPORT;\nvarying vec2 v_Texcoord;\n#define FXAA_REDUCE_MIN (1.0/128.0)\n#define FXAA_REDUCE_MUL (1.0/8.0)\n#define FXAA_SPAN_MAX 8.0\n@import clay.util.rgbm\nvoid main()\n{\n vec2 resolution = 1.0 / viewport.zw;\n vec3 rgbNW = decodeHDR( texture2D( texture, ( gl_FragCoord.xy + vec2( -1.0, -1.0 ) ) * resolution ) ).xyz;\n vec3 rgbNE = decodeHDR( texture2D( texture, ( gl_FragCoord.xy + vec2( 1.0, -1.0 ) ) * resolution ) ).xyz;\n vec3 rgbSW = decodeHDR( texture2D( texture, ( gl_FragCoord.xy + vec2( -1.0, 1.0 ) ) * resolution ) ).xyz;\n vec3 rgbSE = decodeHDR( texture2D( texture, ( gl_FragCoord.xy + vec2( 1.0, 1.0 ) ) * resolution ) ).xyz;\n vec4 rgbaM = decodeHDR( texture2D( texture, gl_FragCoord.xy * resolution ) );\n vec3 rgbM = rgbaM.xyz;\n float opacity = rgbaM.w;\n vec3 luma = vec3( 0.299, 0.587, 0.114 );\n float lumaNW = dot( rgbNW, luma );\n float lumaNE = dot( rgbNE, luma );\n float lumaSW = dot( rgbSW, luma );\n float lumaSE = dot( rgbSE, luma );\n float lumaM = dot( rgbM, luma );\n float lumaMin = min( lumaM, min( min( lumaNW, lumaNE ), min( lumaSW, lumaSE ) ) );\n float lumaMax = max( lumaM, max( max( lumaNW, lumaNE) , max( lumaSW, lumaSE ) ) );\n vec2 dir;\n dir.x = -((lumaNW + lumaNE) - (lumaSW + lumaSE));\n dir.y = ((lumaNW + lumaSW) - (lumaNE + lumaSE));\n float dirReduce = max( ( lumaNW + lumaNE + lumaSW + lumaSE ) * ( 0.25 * FXAA_REDUCE_MUL ), FXAA_REDUCE_MIN );\n float rcpDirMin = 1.0 / ( min( abs( dir.x ), abs( dir.y ) ) + dirReduce );\n dir = min( vec2( FXAA_SPAN_MAX, FXAA_SPAN_MAX),\n max( vec2(-FXAA_SPAN_MAX, -FXAA_SPAN_MAX),\n dir * rcpDirMin)) * resolution;\n vec3 rgbA = decodeHDR( texture2D( texture, gl_FragCoord.xy * resolution + dir * ( 1.0 / 3.0 - 0.5 ) ) ).xyz;\n rgbA += decodeHDR( texture2D( texture, gl_FragCoord.xy * resolution + dir * ( 2.0 / 3.0 - 0.5 ) ) ).xyz;\n rgbA *= 0.5;\n vec3 rgbB = decodeHDR( texture2D( texture, gl_FragCoord.xy * resolution + dir * -0.5 ) ).xyz;\n rgbB += decodeHDR( texture2D( texture, gl_FragCoord.xy * resolution + dir * 0.5 ) ).xyz;\n rgbB *= 0.25;\n rgbB += rgbA * 0.5;\n float lumaB = dot( rgbB, luma );\n if ( ( lumaB < lumaMin ) || ( lumaB > lumaMax ) )\n {\n gl_FragColor = vec4( rgbA, opacity );\n }\n else {\n gl_FragColor = vec4( rgbB, opacity );\n }\n}\n@end";
function register(Shader2) {
  Shader2["import"](coloradjustEssl);
  Shader2["import"](blurCode);
  Shader2["import"](lumEssl);
  Shader2["import"](lutCode);
  Shader2["import"](vigentteEssl);
  Shader2["import"](outputCode);
  Shader2["import"](brightCode);
  Shader2["import"](downsampleCode);
  Shader2["import"](upsampleCode);
  Shader2["import"](hdrCode);
  Shader2["import"](lensflareEssl);
  Shader2["import"](blendCode);
  Shader2["import"](fxaaCode);
}
register(Shader);
var shaderSourceReg = /^#source\((.*?)\)/;
function createCompositor(json, opts) {
  var compositor = new Compositor();
  opts = opts || {};
  var lib = {
    textures: {},
    parameters: {}
  };
  var afterLoad = function(shaderLib, textureLib) {
    for (var i = 0; i < json.nodes.length; i++) {
      var nodeInfo = json.nodes[i];
      var node = createNode(nodeInfo, lib, opts);
      if (node) {
        compositor.addNode(node);
      }
    }
  };
  for (var name in json.parameters) {
    var paramInfo = json.parameters[name];
    lib.parameters[name] = convertParameter(paramInfo);
  }
  loadTextures(json, lib, opts, function(textureLib) {
    lib.textures = textureLib;
    afterLoad();
  });
  return compositor;
}
function createNode(nodeInfo, lib, opts) {
  var type = nodeInfo.type || "filter";
  var shaderSource;
  var inputs;
  var outputs;
  if (type === "filter") {
    var shaderExp = nodeInfo.shader.trim();
    var res = shaderSourceReg.exec(shaderExp);
    if (res) {
      shaderSource = Shader.source(res[1].trim());
    } else if (shaderExp.charAt(0) === "#") {
      shaderSource = lib.shaders[shaderExp.substr(1)];
    }
    if (!shaderSource) {
      shaderSource = shaderExp;
    }
    if (!shaderSource) {
      return;
    }
  }
  if (nodeInfo.inputs) {
    inputs = {};
    for (var name in nodeInfo.inputs) {
      if (typeof nodeInfo.inputs[name] === "string") {
        inputs[name] = nodeInfo.inputs[name];
      } else {
        inputs[name] = {
          node: nodeInfo.inputs[name].node,
          pin: nodeInfo.inputs[name].pin
        };
      }
    }
  }
  if (nodeInfo.outputs) {
    outputs = {};
    for (var name in nodeInfo.outputs) {
      var outputInfo = nodeInfo.outputs[name];
      outputs[name] = {};
      if (outputInfo.attachment != null) {
        outputs[name].attachment = outputInfo.attachment;
      }
      if (outputInfo.keepLastFrame != null) {
        outputs[name].keepLastFrame = outputInfo.keepLastFrame;
      }
      if (outputInfo.outputLastFrame != null) {
        outputs[name].outputLastFrame = outputInfo.outputLastFrame;
      }
      if (outputInfo.parameters) {
        outputs[name].parameters = convertParameter(outputInfo.parameters);
      }
    }
  }
  var node;
  if (type === "scene") {
    node = new SceneNode({
      name: nodeInfo.name,
      scene: opts.scene,
      camera: opts.camera,
      outputs
    });
  } else if (type === "texture") {
    node = new TextureNode({
      name: nodeInfo.name,
      outputs
    });
  } else {
    node = new FilterNode({
      name: nodeInfo.name,
      shader: shaderSource,
      inputs,
      outputs
    });
  }
  if (node) {
    if (nodeInfo.parameters) {
      for (var name in nodeInfo.parameters) {
        var val = nodeInfo.parameters[name];
        if (typeof val === "string") {
          val = val.trim();
          if (val.charAt(0) === "#") {
            val = lib.textures[val.substr(1)];
          } else {
            node.on(
              "beforerender",
              createSizeSetHandler(
                name,
                tryConvertExpr(val)
              )
            );
          }
        } else if (typeof val === "function") {
          node.on("beforerender", val);
        }
        node.setParameter(name, val);
      }
    }
    if (nodeInfo.defines && node.pass) {
      for (var name in nodeInfo.defines) {
        var val = nodeInfo.defines[name];
        node.pass.material.define("fragment", name, val);
      }
    }
  }
  return node;
}
function defaultWidthFunc(width, height) {
  return width;
}
function defaultHeightFunc(width, height) {
  return height;
}
function convertParameter(paramInfo) {
  var param = {};
  if (!paramInfo) {
    return param;
  }
  ["type", "minFilter", "magFilter", "wrapS", "wrapT", "flipY", "useMipmap"].forEach(function(name) {
    var val = paramInfo[name];
    if (val != null) {
      if (typeof val === "string") {
        val = Texture[val];
      }
      param[name] = val;
    }
  });
  var sizeScale = paramInfo.scale || 1;
  ["width", "height"].forEach(function(name) {
    if (paramInfo[name] != null) {
      var val = paramInfo[name];
      if (typeof val === "string") {
        val = val.trim();
        param[name] = createSizeParser(
          name,
          tryConvertExpr(val),
          sizeScale
        );
      } else {
        param[name] = val;
      }
    }
  });
  if (!param.width) {
    param.width = defaultWidthFunc;
  }
  if (!param.height) {
    param.height = defaultHeightFunc;
  }
  if (paramInfo.useMipmap != null) {
    param.useMipmap = paramInfo.useMipmap;
  }
  return param;
}
function loadTextures(json, lib, opts, callback) {
  if (!json.textures) {
    callback({});
    return;
  }
  var textures = {};
  var loading = 0;
  var cbd = false;
  var textureRootPath = opts.textureRootPath;
  util.each(json.textures, function(textureInfo, name) {
    var texture;
    var path = textureInfo.path;
    var parameters = convertParameter(textureInfo.parameters);
    if (Array.isArray(path) && path.length === 6) {
      if (textureRootPath) {
        path = path.map(function(item) {
          return util.relative2absolute(item, textureRootPath);
        });
      }
      texture = new TextureCube(parameters);
    } else if (typeof path === "string") {
      if (textureRootPath) {
        path = util.relative2absolute(path, textureRootPath);
      }
      texture = new Texture2D(parameters);
    } else {
      return;
    }
    texture.load(path);
    loading++;
    texture.once("success", function() {
      textures[name] = texture;
      loading--;
      if (loading === 0) {
        callback(textures);
        cbd = true;
      }
    });
  });
  if (loading === 0 && !cbd) {
    callback(textures);
  }
}
function createSizeSetHandler(name, exprFunc) {
  return function(renderer) {
    var dpr = renderer.getDevicePixelRatio();
    var width = renderer.getWidth();
    var height = renderer.getHeight();
    var result = exprFunc(width, height, dpr);
    this.setParameter(name, result);
  };
}
function createSizeParser(name, exprFunc, scale) {
  scale = scale || 1;
  return function(renderer) {
    var dpr = renderer.getDevicePixelRatio();
    var width = renderer.getWidth() * scale;
    var height = renderer.getHeight() * scale;
    return exprFunc(width, height, dpr);
  };
}
function tryConvertExpr(string) {
  var exprRes = /^expr\((.*)\)$/.exec(string);
  if (exprRes) {
    try {
      var func = new Function("width", "height", "dpr", "return " + exprRes[1]);
      func(1, 1);
      return func;
    } catch (e2) {
      throw new Error("Invalid expression.");
    }
  }
}
function halton(index, base) {
  var result = 0;
  var f = 1 / base;
  var i = index;
  while (i > 0) {
    result = result + f * (i % base);
    i = Math.floor(i / base);
    f = f / base;
  }
  return result;
}
const SSAOGLSL = "@export ecgl.ssao.estimate\n\nuniform sampler2D depthTex;\n\nuniform sampler2D normalTex;\n\nuniform sampler2D noiseTex;\n\nuniform vec2 depthTexSize;\n\nuniform vec2 noiseTexSize;\n\nuniform mat4 projection;\n\nuniform mat4 projectionInv;\n\nuniform mat4 viewInverseTranspose;\n\nuniform vec3 kernel[KERNEL_SIZE];\n\nuniform float radius : 1;\n\nuniform float power : 1;\n\nuniform float bias: 1e-2;\n\nuniform float intensity: 1.0;\n\nvarying vec2 v_Texcoord;\n\nfloat ssaoEstimator(in vec3 originPos, in mat3 kernelBasis) {\n float occlusion = 0.0;\n\n for (int i = 0; i < KERNEL_SIZE; i++) {\n vec3 samplePos = kernel[i];\n#ifdef NORMALTEX_ENABLED\n samplePos = kernelBasis * samplePos;\n#endif\n samplePos = samplePos * radius + originPos;\n\n vec4 texCoord = projection * vec4(samplePos, 1.0);\n texCoord.xy /= texCoord.w;\n\n vec4 depthTexel = texture2D(depthTex, texCoord.xy * 0.5 + 0.5);\n\n float sampleDepth = depthTexel.r * 2.0 - 1.0;\n if (projection[3][3] == 0.0) {\n sampleDepth = projection[3][2] / (sampleDepth * projection[2][3] - projection[2][2]);\n }\n else {\n sampleDepth = (sampleDepth - projection[3][2]) / projection[2][2];\n }\n \n float rangeCheck = smoothstep(0.0, 1.0, radius / abs(originPos.z - sampleDepth));\n occlusion += rangeCheck * step(samplePos.z, sampleDepth - bias);\n }\n#ifdef NORMALTEX_ENABLED\n occlusion = 1.0 - occlusion / float(KERNEL_SIZE);\n#else\n occlusion = 1.0 - clamp((occlusion / float(KERNEL_SIZE) - 0.6) * 2.5, 0.0, 1.0);\n#endif\n return pow(occlusion, power);\n}\n\nvoid main()\n{\n\n vec4 depthTexel = texture2D(depthTex, v_Texcoord);\n\n#ifdef NORMALTEX_ENABLED\n vec4 tex = texture2D(normalTex, v_Texcoord);\n if (dot(tex.rgb, tex.rgb) == 0.0) {\n gl_FragColor = vec4(1.0);\n return;\n }\n vec3 N = tex.rgb * 2.0 - 1.0;\n N = (viewInverseTranspose * vec4(N, 0.0)).xyz;\n\n vec2 noiseTexCoord = depthTexSize / vec2(noiseTexSize) * v_Texcoord;\n vec3 rvec = texture2D(noiseTex, noiseTexCoord).rgb * 2.0 - 1.0;\n vec3 T = normalize(rvec - N * dot(rvec, N));\n vec3 BT = normalize(cross(N, T));\n mat3 kernelBasis = mat3(T, BT, N);\n#else\n if (depthTexel.r > 0.99999) {\n gl_FragColor = vec4(1.0);\n return;\n }\n mat3 kernelBasis;\n#endif\n\n float z = depthTexel.r * 2.0 - 1.0;\n\n vec4 projectedPos = vec4(v_Texcoord * 2.0 - 1.0, z, 1.0);\n vec4 p4 = projectionInv * projectedPos;\n\n vec3 position = p4.xyz / p4.w;\n\n float ao = ssaoEstimator(position, kernelBasis);\n ao = clamp(1.0 - (1.0 - ao) * intensity, 0.0, 1.0);\n gl_FragColor = vec4(vec3(ao), 1.0);\n}\n\n@end\n\n\n@export ecgl.ssao.blur\n#define SHADER_NAME SSAO_BLUR\n\nuniform sampler2D ssaoTexture;\n\n#ifdef NORMALTEX_ENABLED\nuniform sampler2D normalTex;\n#endif\n\nvarying vec2 v_Texcoord;\n\nuniform vec2 textureSize;\nuniform float blurSize : 1.0;\n\nuniform int direction: 0.0;\n\n#ifdef DEPTHTEX_ENABLED\nuniform sampler2D depthTex;\nuniform mat4 projection;\nuniform float depthRange : 0.5;\n\nfloat getLinearDepth(vec2 coord)\n{\n float depth = texture2D(depthTex, coord).r * 2.0 - 1.0;\n return projection[3][2] / (depth * projection[2][3] - projection[2][2]);\n}\n#endif\n\nvoid main()\n{\n float kernel[5];\n kernel[0] = 0.122581;\n kernel[1] = 0.233062;\n kernel[2] = 0.288713;\n kernel[3] = 0.233062;\n kernel[4] = 0.122581;\n\n vec2 off = vec2(0.0);\n if (direction == 0) {\n off[0] = blurSize / textureSize.x;\n }\n else {\n off[1] = blurSize / textureSize.y;\n }\n\n vec2 coord = v_Texcoord;\n\n float sum = 0.0;\n float weightAll = 0.0;\n\n#ifdef NORMALTEX_ENABLED\n vec3 centerNormal = texture2D(normalTex, v_Texcoord).rgb * 2.0 - 1.0;\n#endif\n#if defined(DEPTHTEX_ENABLED)\n float centerDepth = getLinearDepth(v_Texcoord);\n#endif\n\n for (int i = 0; i < 5; i++) {\n vec2 coord = clamp(v_Texcoord + vec2(float(i) - 2.0) * off, vec2(0.0), vec2(1.0));\n\n float w = kernel[i];\n#ifdef NORMALTEX_ENABLED\n vec3 normal = texture2D(normalTex, coord).rgb * 2.0 - 1.0;\n w *= clamp(dot(normal, centerNormal), 0.0, 1.0);\n#endif\n#ifdef DEPTHTEX_ENABLED\n float d = getLinearDepth(coord);\n w *= (1.0 - smoothstep(abs(centerDepth - d) 
Shader.import(SSAOGLSL);
function generateNoiseData(size) {
  var data = new Uint8Array(size * size * 4);
  var n = 0;
  var v3 = new Vector3();
  for (var i = 0; i < size; i++) {
    for (var j = 0; j < size; j++) {
      v3.set(Math.random() * 2 - 1, Math.random() * 2 - 1, 0).normalize();
      data[n++] = (v3.x * 0.5 + 0.5) * 255;
      data[n++] = (v3.y * 0.5 + 0.5) * 255;
      data[n++] = 0;
      data[n++] = 255;
    }
  }
  return data;
}
function generateNoiseTexture(size) {
  return new Texture2D({
    pixels: generateNoiseData(size),
    wrapS: Texture.REPEAT,
    wrapT: Texture.REPEAT,
    width: size,
    height: size
  });
}
function generateKernel(size, offset, hemisphere) {
  var kernel = new Float32Array(size * 3);
  offset = offset || 0;
  for (var i = 0; i < size; i++) {
    var phi = halton(i + offset, 2) * (hemisphere ? 1 : 2) * Math.PI;
    var theta = halton(i + offset, 3) * Math.PI;
    var r = Math.random();
    var x = Math.cos(phi) * Math.sin(theta) * r;
    var y = Math.cos(theta) * r;
    var z = Math.sin(phi) * Math.sin(theta) * r;
    kernel[i * 3] = x;
    kernel[i * 3 + 1] = y;
    kernel[i * 3 + 2] = z;
  }
  return kernel;
}
function SSAOPass(opt) {
  opt = opt || {};
  this._ssaoPass = new Pass({
    fragment: Shader.source("ecgl.ssao.estimate")
  });
  this._blurPass = new Pass({
    fragment: Shader.source("ecgl.ssao.blur")
  });
  this._framebuffer = new FrameBuffer({
    depthBuffer: false
  });
  this._ssaoTexture = new Texture2D();
  this._blurTexture = new Texture2D();
  this._blurTexture2 = new Texture2D();
  this._depthTex = opt.depthTexture;
  this._normalTex = opt.normalTexture;
  this.setNoiseSize(4);
  this.setKernelSize(opt.kernelSize || 12);
  if (opt.radius != null) {
    this.setParameter("radius", opt.radius);
  }
  if (opt.power != null) {
    this.setParameter("power", opt.power);
  }
  if (!this._normalTex) {
    this._ssaoPass.material.disableTexture("normalTex");
    this._blurPass.material.disableTexture("normalTex");
  }
  if (!this._depthTex) {
    this._blurPass.material.disableTexture("depthTex");
  }
  this._blurPass.material.setUniform("normalTex", this._normalTex);
  this._blurPass.material.setUniform("depthTex", this._depthTex);
}
SSAOPass.prototype.setDepthTexture = function(depthTex) {
  this._depthTex = depthTex;
};
SSAOPass.prototype.setNormalTexture = function(normalTex) {
  this._normalTex = normalTex;
  this._ssaoPass.material[normalTex ? "enableTexture" : "disableTexture"]("normalTex");
  this.setKernelSize(this._kernelSize);
};
SSAOPass.prototype.update = function(renderer, camera2, frame) {
  var width = renderer.getWidth();
  var height = renderer.getHeight();
  var ssaoPass = this._ssaoPass;
  var blurPass = this._blurPass;
  ssaoPass.setUniform("kernel", this._kernels[frame % this._kernels.length]);
  ssaoPass.setUniform("depthTex", this._depthTex);
  if (this._normalTex != null) {
    ssaoPass.setUniform("normalTex", this._normalTex);
  }
  ssaoPass.setUniform("depthTexSize", [this._depthTex.width, this._depthTex.height]);
  var viewInverseTranspose = new Matrix4();
  Matrix4.transpose(viewInverseTranspose, camera2.worldTransform);
  ssaoPass.setUniform("projection", camera2.projectionMatrix.array);
  ssaoPass.setUniform("projectionInv", camera2.invProjectionMatrix.array);
  ssaoPass.setUniform("viewInverseTranspose", viewInverseTranspose.array);
  var ssaoTexture = this._ssaoTexture;
  var blurTexture = this._blurTexture;
  var blurTexture2 = this._blurTexture2;
  ssaoTexture.width = width / 2;
  ssaoTexture.height = height / 2;
  blurTexture.width = width;
  blurTexture.height = height;
  blurTexture2.width = width;
  blurTexture2.height = height;
  this._framebuffer.attach(ssaoTexture);
  this._framebuffer.bind(renderer);
  renderer.gl.clearColor(1, 1, 1, 1);
  renderer.gl.clear(renderer.gl.COLOR_BUFFER_BIT);
  ssaoPass.render(renderer);
  blurPass.setUniform("textureSize", [width / 2, height / 2]);
  blurPass.setUniform("projection", camera2.projectionMatrix.array);
  this._framebuffer.attach(blurTexture);
  blurPass.setUniform("direction", 0);
  blurPass.setUniform("ssaoTexture", ssaoTexture);
  blurPass.render(renderer);
  this._framebuffer.attach(blurTexture2);
  blurPass.setUniform("textureSize", [width, height]);
  blurPass.setUniform("direction", 1);
  blurPass.setUniform("ssaoTexture", blurTexture);
  blurPass.render(renderer);
  this._framebuffer.unbind(renderer);
  var clearColor = renderer.clearColor;
  renderer.gl.clearColor(clearColor[0], clearColor[1], clearColor[2], clearColor[3]);
};
SSAOPass.prototype.getTargetTexture = function() {
  return this._blurTexture2;
};
SSAOPass.prototype.setParameter = function(name, val) {
  if (name === "noiseTexSize") {
    this.setNoiseSize(val);
  } else if (name === "kernelSize") {
    this.setKernelSize(val);
  } else if (name === "intensity") {
    this._ssaoPass.material.set("intensity", val);
  } else {
    this._ssaoPass.setUniform(name, val);
  }
};
SSAOPass.prototype.setKernelSize = function(size) {
  this._kernelSize = size;
  this._ssaoPass.material.define("fragment", "KERNEL_SIZE", size);
  this._kernels = this._kernels || [];
  for (var i = 0; i < 30; i++) {
    this._kernels[i] = generateKernel(size, i * size, !!this._normalTex);
  }
};
SSAOPass.prototype.setNoiseSize = function(size) {
  var texture = this._ssaoPass.getUniform("noiseTex");
  if (!texture) {
    texture = generateNoiseTexture(size);
    this._ssaoPass.setUniform("noiseTex", generateNoiseTexture(size));
  } else {
    texture.data = generateNoiseData(size);
    texture.width = texture.height = size;
    texture.dirty();
  }
  this._ssaoPass.setUniform("noiseTexSize", [size, size]);
};
SSAOPass.prototype.dispose = function(renderer) {
  this._blurTexture.dispose(renderer);
  this._ssaoTexture.dispose(renderer);
  this._blurTexture2.dispose(renderer);
};
const SSRGLSLCode = "@export ecgl.ssr.main\n\n#define SHADER_NAME SSR\n#define MAX_ITERATION 20;\n#define SAMPLE_PER_FRAME 5;\n#define TOTAL_SAMPLES 128;\n\nuniform sampler2D sourceTexture;\nuniform sampler2D gBufferTexture1;\nuniform sampler2D gBufferTexture2;\nuniform sampler2D gBufferTexture3;\nuniform samplerCube specularCubemap;\nuniform float specularIntensity: 1;\n\nuniform mat4 projection;\nuniform mat4 projectionInv;\nuniform mat4 toViewSpace;\nuniform mat4 toWorldSpace;\n\nuniform float maxRayDistance: 200;\n\nuniform float pixelStride: 16;\nuniform float pixelStrideZCutoff: 50; \nuniform float screenEdgeFadeStart: 0.9; \nuniform float eyeFadeStart : 0.2; uniform float eyeFadeEnd: 0.8; \nuniform float minGlossiness: 0.2; uniform float zThicknessThreshold: 1;\n\nuniform float nearZ;\nuniform vec2 viewportSize : VIEWPORT_SIZE;\n\nuniform float jitterOffset: 0;\n\nvarying vec2 v_Texcoord;\n\n#ifdef DEPTH_DECODE\n@import clay.util.decode_float\n#endif\n\n#ifdef PHYSICALLY_CORRECT\nuniform sampler2D normalDistribution;\nuniform float sampleOffset: 0;\nuniform vec2 normalDistributionSize;\n\nvec3 transformNormal(vec3 H, vec3 N) {\n vec3 upVector = N.y > 0.999 ? vec3(1.0, 0.0, 0.0) : vec3(0.0, 1.0, 0.0);\n vec3 tangentX = normalize(cross(N, upVector));\n vec3 tangentZ = cross(N, tangentX);\n return normalize(tangentX * H.x + N * H.y + tangentZ * H.z);\n}\nvec3 importanceSampleNormalGGX(float i, float roughness, vec3 N) {\n float p = fract((i + sampleOffset) / float(TOTAL_SAMPLES));\n vec3 H = texture2D(normalDistribution,vec2(roughness, p)).rgb;\n return transformNormal(H, N);\n}\nfloat G_Smith(float g, float ndv, float ndl) {\n float roughness = 1.0 - g;\n float k = roughness * roughness / 2.0;\n float G1V = ndv / (ndv * (1.0 - k) + k);\n float G1L = ndl / (ndl * (1.0 - k) + k);\n return G1L * G1V;\n}\nvec3 F_Schlick(float ndv, vec3 spec) {\n return spec + (1.0 - spec) * pow(1.0 - ndv, 5.0);\n}\n#endif\n\nfloat fetchDepth(sampler2D depthTexture, vec2 uv)\n{\n vec4 depthTexel = texture2D(depthTexture, uv);\n return depthTexel.r * 2.0 - 1.0;\n}\n\nfloat linearDepth(float depth)\n{\n if (projection[3][3] == 0.0) {\n return projection[3][2] / (depth * projection[2][3] - projection[2][2]);\n }\n else {\n return (depth - projection[3][2]) / projection[2][2];\n }\n}\n\nbool rayIntersectDepth(float rayZNear, float rayZFar, vec2 hitPixel)\n{\n if (rayZFar > rayZNear)\n {\n float t = rayZFar; rayZFar = rayZNear; rayZNear = t;\n }\n float cameraZ = linearDepth(fetchDepth(gBufferTexture2, hitPixel));\n return rayZFar <= cameraZ && rayZNear >= cameraZ - zThicknessThreshold;\n}\n\n\nbool traceScreenSpaceRay(\n vec3 rayOrigin, vec3 rayDir, float jitter,\n out vec2 hitPixel, out vec3 hitPoint, out float iterationCount\n)\n{\n float rayLength = ((rayOrigin.z + rayDir.z * maxRayDistance) > -nearZ)\n ? (-nearZ - rayOrigin.z) / rayDir.z : maxRayDistance;\n\n vec3 rayEnd = rayOrigin + rayDir * rayLength;\n\n vec4 H0 = projection * vec4(rayOrigin, 1.0);\n vec4 H1 = projection * vec4(rayEnd, 1.0);\n\n float k0 = 1.0 / H0.w, k1 = 1.0 / H1.w;\n\n vec3 Q0 = rayOrigin * k0, Q1 = rayEnd * k1;\n\n vec2 P0 = (H0.xy * k0 * 0.5 + 0.5) * viewportSize;\n vec2 P1 = (H1.xy * k1 * 0.5 + 0.5) * viewportSize;\n\n P1 += dot(P1 - P0, P1 - P0) < 0.0001 ? 0.01 : 0.0;\n vec2 delta = P1 - P0;\n\n bool permute = false;\n if (abs(delta.x) < abs(delta.y)) {\n permute = true;\n delta = delta.yx;\n P0 = P0.yx;\n P1 = P1.yx;\n }\n float stepDir = sign(delta.x);\n float invdx = stepDir / delta.x;\n\n vec3 dQ = (Q1 - Q0) * invdx;\n float dk = (k1 - k0) * invdx;\n\n vec2 dP = vec2(stepDir, delta.y * invdx);\n\n float strideScaler = 1.0 - min(1.0, -rayOrigin.z / pixelStrideZCutoff);\n float pixStride = 1.0 + strideScaler * pixelStride;\n\n dP *= pixStride; dQ *= pixStride; dk *= pixStride;\n\n vec4 pqk = vec4(P0, Q0.z, k0);\n vec4 dPQK = vec4(dP, dQ.z, dk);\n\n pqk += dPQK * jitter;\n float rayZFar = (dPQK.z * 0.5 + pqk.z) / (dPQK.w * 0.5 + pqk.w);\n float rayZNear;\n\n bool intersect = false;\n\n vec2 texelSize = 1.0 / viewportSize;\n\n iterationCount = 0.0;\n\n for (i
Shader.import(SSRGLSLCode);
function SSRPass(opt) {
  opt = opt || {};
  this._ssrPass = new Pass({
    fragment: Shader.source("ecgl.ssr.main"),
    clearColor: [0, 0, 0, 0]
  });
  this._blurPass1 = new Pass({
    fragment: Shader.source("ecgl.ssr.blur"),
    clearColor: [0, 0, 0, 0]
  });
  this._blurPass2 = new Pass({
    fragment: Shader.source("ecgl.ssr.blur"),
    clearColor: [0, 0, 0, 0]
  });
  this._blendPass = new Pass({
    fragment: Shader.source("clay.compositor.blend")
  });
  this._blendPass.material.disableTexturesAll();
  this._blendPass.material.enableTexture(["texture1", "texture2"]);
  this._ssrPass.setUniform("gBufferTexture1", opt.normalTexture);
  this._ssrPass.setUniform("gBufferTexture2", opt.depthTexture);
  this._blurPass1.setUniform("gBufferTexture1", opt.normalTexture);
  this._blurPass1.setUniform("gBufferTexture2", opt.depthTexture);
  this._blurPass2.setUniform("gBufferTexture1", opt.normalTexture);
  this._blurPass2.setUniform("gBufferTexture2", opt.depthTexture);
  this._blurPass2.material.define("fragment", "VERTICAL");
  this._blurPass2.material.define("fragment", "BLEND");
  this._ssrTexture = new Texture2D({
    type: Texture.HALF_FLOAT
  });
  this._texture2 = new Texture2D({
    type: Texture.HALF_FLOAT
  });
  this._texture3 = new Texture2D({
    type: Texture.HALF_FLOAT
  });
  this._prevTexture = new Texture2D({
    type: Texture.HALF_FLOAT
  });
  this._currentTexture = new Texture2D({
    type: Texture.HALF_FLOAT
  });
  this._frameBuffer = new FrameBuffer({
    depthBuffer: false
  });
  this._normalDistribution = null;
  this._totalSamples = 256;
  this._samplePerFrame = 4;
  this._ssrPass.material.define("fragment", "SAMPLE_PER_FRAME", this._samplePerFrame);
  this._ssrPass.material.define("fragment", "TOTAL_SAMPLES", this._totalSamples);
  this._downScale = 1;
}
SSRPass.prototype.setAmbientCubemap = function(specularCubemap, specularIntensity) {
  this._ssrPass.material.set("specularCubemap", specularCubemap);
  this._ssrPass.material.set("specularIntensity", specularIntensity);
  var enableSpecularMap = specularCubemap && specularIntensity;
  this._ssrPass.material[enableSpecularMap ? "enableTexture" : "disableTexture"]("specularCubemap");
};
SSRPass.prototype.update = function(renderer, camera2, sourceTexture, frame) {
  var width = renderer.getWidth();
  var height = renderer.getHeight();
  var ssrTexture = this._ssrTexture;
  var texture2 = this._texture2;
  var texture3 = this._texture3;
  ssrTexture.width = this._prevTexture.width = this._currentTexture.width = width / this._downScale;
  ssrTexture.height = this._prevTexture.height = this._currentTexture.height = height / this._downScale;
  texture2.width = texture3.width = width;
  texture2.height = texture3.height = height;
  var frameBuffer = this._frameBuffer;
  var ssrPass = this._ssrPass;
  var blurPass1 = this._blurPass1;
  var blurPass2 = this._blurPass2;
  var blendPass = this._blendPass;
  var toViewSpace = new Matrix4();
  var toWorldSpace = new Matrix4();
  Matrix4.transpose(toViewSpace, camera2.worldTransform);
  Matrix4.transpose(toWorldSpace, camera2.viewMatrix);
  ssrPass.setUniform("sourceTexture", sourceTexture);
  ssrPass.setUniform("projection", camera2.projectionMatrix.array);
  ssrPass.setUniform("projectionInv", camera2.invProjectionMatrix.array);
  ssrPass.setUniform("toViewSpace", toViewSpace.array);
  ssrPass.setUniform("toWorldSpace", toWorldSpace.array);
  ssrPass.setUniform("nearZ", camera2.near);
  var percent = frame / this._totalSamples * this._samplePerFrame;
  ssrPass.setUniform("jitterOffset", percent);
  ssrPass.setUniform("sampleOffset", frame * this._samplePerFrame);
  blurPass1.setUniform("textureSize", [ssrTexture.width, ssrTexture.height]);
  blurPass2.setUniform("textureSize", [width, height]);
  blurPass2.setUniform("sourceTexture", sourceTexture);
  blurPass1.setUniform("projection", camera2.projectionMatrix.array);
  blurPass2.setUniform("projection", camera2.projectionMatrix.array);
  frameBuffer.attach(ssrTexture);
  frameBuffer.bind(renderer);
  ssrPass.render(renderer);
  if (this._physicallyCorrect) {
    frameBuffer.attach(this._currentTexture);
    blendPass.setUniform("texture1", this._prevTexture);
    blendPass.setUniform("texture2", ssrTexture);
    blendPass.material.set({
      "weight1": frame >= 1 ? 0.95 : 0,
      "weight2": frame >= 1 ? 0.05 : 1
      // weight1: frame >= 1 ? 1 : 0,
      // weight2: 1
    });
    blendPass.render(renderer);
  }
  frameBuffer.attach(texture2);
  blurPass1.setUniform("texture", this._physicallyCorrect ? this._currentTexture : ssrTexture);
  blurPass1.render(renderer);
  frameBuffer.attach(texture3);
  blurPass2.setUniform("texture", texture2);
  blurPass2.render(renderer);
  frameBuffer.unbind(renderer);
  if (this._physicallyCorrect) {
    var tmp = this._prevTexture;
    this._prevTexture = this._currentTexture;
    this._currentTexture = tmp;
  }
};
SSRPass.prototype.getTargetTexture = function() {
  return this._texture3;
};
SSRPass.prototype.setParameter = function(name, val) {
  if (name === "maxIteration") {
    this._ssrPass.material.define("fragment", "MAX_ITERATION", val);
  } else {
    this._ssrPass.setUniform(name, val);
  }
};
SSRPass.prototype.setPhysicallyCorrect = function(isPhysicallyCorrect) {
  if (isPhysicallyCorrect) {
    if (!this._normalDistribution) {
      this._normalDistribution = cubemapUtil.generateNormalDistribution(64, this._totalSamples);
    }
    this._ssrPass.material.define("fragment", "PHYSICALLY_CORRECT");
    this._ssrPass.material.set("normalDistribution", this._normalDistribution);
    this._ssrPass.material.set("normalDistributionSize", [64, this._totalSamples]);
  } else {
    this._ssrPass.material.undefine("fragment", "PHYSICALLY_CORRECT");
  }
  this._physicallyCorrect = isPhysicallyCorrect;
};
SSRPass.prototype.setSSAOTexture = function(texture) {
  var blendPass = this._blurPass2;
  if (texture) {
    blendPass.material.enableTexture("ssaoTex");
    blendPass.material.set("ssaoTex", texture);
  } else {
    blendPass.material.disableTexture("ssaoTex");
  }
};
SSRPass.prototype.isFinished = function(frame) {
  if (this._physicallyCorrect) {
    return frame > this._totalSamples / this._samplePerFrame;
  } else {
    return true;
  }
};
SSRPass.prototype.dispose = function(renderer) {
  this._ssrTexture.dispose(renderer);
  this._texture2.dispose(renderer);
  this._texture3.dispose(renderer);
  this._prevTexture.dispose(renderer);
  this._currentTexture.dispose(renderer);
  this._frameBuffer.dispose(renderer);
};
const poissonKernel = [0, 0, -0.321585265978, -0.154972575841, 0.458126042375, 0.188473391593, 0.842080129861, 0.527766490688, 0.147304551086, -0.659453822776, -0.331943915203, -0.940619700594, 0.0479226680259, 0.54812163202, 0.701581552186, -0.709825561388, -0.295436780218, 0.940589268233, -0.901489676764, 0.237713156085, 0.973570876096, -0.109899459384, -0.866792314779, -0.451805525005, 0.330975007087, 0.800048655954, -0.344275183665, 0.381779221166, -0.386139432542, -0.437418421534, -0.576478634965, -0.0148463392551, 0.385798197415, -0.262426961053, -0.666302061145, 0.682427250835, -0.628010632582, -0.732836215494, 0.10163141741, -0.987658134403, 0.711995289051, -0.320024291314, 0.0296005138058, 0.950296523438, 0.0130612307608, -0.351024443122, -0.879596633704, -0.10478487883, 0.435712737232, 0.504254490347, 0.779203817497, 0.206477676721, 0.388264289969, -0.896736162545, -0.153106280781, -0.629203242522, -0.245517550697, 0.657969239148, 0.126830499058, 0.26862328493, -0.634888119007, -0.302301223431, 0.617074219636, 0.779817204925];
const normalGLSL = "@export ecgl.normal.vertex\n\n@import ecgl.common.transformUniforms\n\n@import ecgl.common.uv.header\n\n@import ecgl.common.attributes\n\nvarying vec3 v_Normal;\nvarying vec3 v_WorldPosition;\n\n@import ecgl.common.normalMap.vertexHeader\n\n@import ecgl.common.vertexAnimation.header\n\nvoid main()\n{\n\n @import ecgl.common.vertexAnimation.main\n\n @import ecgl.common.uv.main\n\n v_Normal = normalize((worldInverseTranspose * vec4(normal, 0.0)).xyz);\n v_WorldPosition = (world * vec4(pos, 1.0)).xyz;\n\n @import ecgl.common.normalMap.vertexMain\n\n gl_Position = worldViewProjection * vec4(pos, 1.0);\n\n}\n\n\n@end\n\n\n@export ecgl.normal.fragment\n\n#define ROUGHNESS_CHANEL 0\n\nuniform bool useBumpMap;\nuniform bool useRoughnessMap;\nuniform bool doubleSide;\nuniform float roughness;\n\n@import ecgl.common.uv.fragmentHeader\n\nvarying vec3 v_Normal;\nvarying vec3 v_WorldPosition;\n\nuniform mat4 viewInverse : VIEWINVERSE;\n\n@import ecgl.common.normalMap.fragmentHeader\n@import ecgl.common.bumpMap.header\n\nuniform sampler2D roughnessMap;\n\nvoid main()\n{\n vec3 N = v_Normal;\n \n bool flipNormal = false;\n if (doubleSide) {\n vec3 eyePos = viewInverse[3].xyz;\n vec3 V = normalize(eyePos - v_WorldPosition);\n\n if (dot(N, V) < 0.0) {\n flipNormal = true;\n }\n }\n\n @import ecgl.common.normalMap.fragmentMain\n\n if (useBumpMap) {\n N = bumpNormal(v_WorldPosition, v_Normal, N);\n }\n\n float g = 1.0 - roughness;\n\n if (useRoughnessMap) {\n float g2 = 1.0 - texture2D(roughnessMap, v_DetailTexcoord)[ROUGHNESS_CHANEL];\n g = clamp(g2 + (g - 0.5) * 2.0, 0.0, 1.0);\n }\n\n if (flipNormal) {\n N = -N;\n }\n\n gl_FragColor.rgb = (N.xyz + 1.0) * 0.5;\n gl_FragColor.a = g;\n}\n@end";
Shader.import(normalGLSL);
function attachTextureToSlot(renderer, program, symbol, texture, slot) {
  var gl = renderer.gl;
  program.setUniform(gl, "1i", symbol, slot);
  gl.activeTexture(gl.TEXTURE0 + slot);
  if (texture.isRenderable()) {
    texture.bind(renderer);
  } else {
    texture.unbind(renderer);
  }
}
function getBeforeRenderHook(renderer, defaultNormalMap, defaultBumpMap, defaultRoughnessMap, normalMaterial) {
  var previousNormalMap;
  var previousBumpMap;
  var previousRoughnessMap;
  var previousRenderable;
  var gl = renderer.gl;
  return function(renderable, normalMaterial2, prevNormalMaterial) {
    if (previousRenderable && previousRenderable.material === renderable.material) {
      return;
    }
    var material = renderable.material;
    var program = renderable.__program;
    var roughness = material.get("roughness");
    if (roughness == null) {
      roughness = 1;
    }
    var normalMap = material.get("normalMap") || defaultNormalMap;
    var roughnessMap = material.get("roughnessMap");
    var bumpMap = material.get("bumpMap");
    var uvRepeat = material.get("uvRepeat");
    var uvOffset = material.get("uvOffset");
    var detailUvRepeat = material.get("detailUvRepeat");
    var detailUvOffset = material.get("detailUvOffset");
    var useBumpMap = !!bumpMap && material.isTextureEnabled("bumpMap");
    var useRoughnessMap = !!roughnessMap && material.isTextureEnabled("roughnessMap");
    var doubleSide = material.isDefined("fragment", "DOUBLE_SIDED");
    bumpMap = bumpMap || defaultBumpMap;
    roughnessMap = roughnessMap || defaultRoughnessMap;
    if (prevNormalMaterial !== normalMaterial2) {
      normalMaterial2.set("normalMap", normalMap);
      normalMaterial2.set("bumpMap", bumpMap);
      normalMaterial2.set("roughnessMap", roughnessMap);
      normalMaterial2.set("useBumpMap", useBumpMap);
      normalMaterial2.set("useRoughnessMap", useRoughnessMap);
      normalMaterial2.set("doubleSide", doubleSide);
      uvRepeat != null && normalMaterial2.set("uvRepeat", uvRepeat);
      uvOffset != null && normalMaterial2.set("uvOffset", uvOffset);
      detailUvRepeat != null && normalMaterial2.set("detailUvRepeat", detailUvRepeat);
      detailUvOffset != null && normalMaterial2.set("detailUvOffset", detailUvOffset);
      normalMaterial2.set("roughness", roughness);
    } else {
      program.setUniform(gl, "1f", "roughness", roughness);
      if (previousNormalMap !== normalMap) {
        attachTextureToSlot(renderer, program, "normalMap", normalMap, 0);
      }
      if (previousBumpMap !== bumpMap && bumpMap) {
        attachTextureToSlot(renderer, program, "bumpMap", bumpMap, 1);
      }
      if (previousRoughnessMap !== roughnessMap && roughnessMap) {
        attachTextureToSlot(renderer, program, "roughnessMap", roughnessMap, 2);
      }
      if (uvRepeat != null) {
        program.setUniform(gl, "2f", "uvRepeat", uvRepeat);
      }
      if (uvOffset != null) {
        program.setUniform(gl, "2f", "uvOffset", uvOffset);
      }
      if (detailUvRepeat != null) {
        program.setUniform(gl, "2f", "detailUvRepeat", detailUvRepeat);
      }
      if (detailUvOffset != null) {
        program.setUniform(gl, "2f", "detailUvOffset", detailUvOffset);
      }
      program.setUniform(gl, "1i", "useBumpMap", +useBumpMap);
      program.setUniform(gl, "1i", "useRoughnessMap", +useRoughnessMap);
      program.setUniform(gl, "1i", "doubleSide", +doubleSide);
    }
    previousNormalMap = normalMap;
    previousBumpMap = bumpMap;
    previousRoughnessMap = roughnessMap;
    previousRenderable = renderable;
  };
}
function NormalPass(opt) {
  this._depthTex = new Texture2D({
    format: Texture.DEPTH_COMPONENT,
    type: Texture.UNSIGNED_INT
  });
  this._normalTex = new Texture2D({
    type: Texture.HALF_FLOAT
  });
  this._framebuffer = new FrameBuffer();
  this._framebuffer.attach(this._normalTex);
  this._framebuffer.attach(this._depthTex, FrameBuffer.DEPTH_ATTACHMENT);
  this._normalMaterial = new Material({
    shader: new Shader(Shader.source("ecgl.normal.vertex"), Shader.source("ecgl.normal.fragment"))
  });
  this._normalMaterial.enableTexture(["normalMap", "bumpMap", "roughnessMap"]);
  this._defaultNormalMap = textureUtil.createBlank("#000");
  this._defaultBumpMap = textureUtil.createBlank("#000");
  this._defaultRoughessMap = textureUtil.createBlank("#000");
  this._debugPass = new Pass({
    fragment: Shader.source("clay.compositor.output")
  });
  this._debugPass.setUniform("texture", this._normalTex);
  this._debugPass.material.undefine("fragment", "OUTPUT_ALPHA");
}
NormalPass.prototype.getDepthTexture = function() {
  return this._depthTex;
};
NormalPass.prototype.getNormalTexture = function() {
  return this._normalTex;
};
NormalPass.prototype.update = function(renderer, scene, camera2) {
  var width = renderer.getWidth();
  var height = renderer.getHeight();
  var depthTexture = this._depthTex;
  var normalTexture = this._normalTex;
  var normalMaterial = this._normalMaterial;
  depthTexture.width = width;
  depthTexture.height = height;
  normalTexture.width = width;
  normalTexture.height = height;
  var opaqueList = scene.getRenderList(camera2).opaque;
  this._framebuffer.bind(renderer);
  renderer.gl.clearColor(0, 0, 0, 0);
  renderer.gl.clear(renderer.gl.COLOR_BUFFER_BIT | renderer.gl.DEPTH_BUFFER_BIT);
  renderer.gl.disable(renderer.gl.BLEND);
  renderer.renderPass(opaqueList, camera2, {
    getMaterial: function() {
      return normalMaterial;
    },
    ifRender: function(object) {
      return object.renderNormal;
    },
    beforeRender: getBeforeRenderHook(renderer, this._defaultNormalMap, this._defaultBumpMap, this._defaultRoughessMap, this._normalMaterial),
    sort: renderer.opaqueSortCompare
  });
  this._framebuffer.unbind(renderer);
};
NormalPass.prototype.renderDebug = function(renderer) {
  this._debugPass.render(renderer);
};
NormalPass.prototype.dispose = function(renderer) {
  this._depthTex.dispose(renderer);
  this._normalTex.dispose(renderer);
};
function EdgePass(opt) {
  opt = opt || {};
  this._edgePass = new Pass({
    fragment: Shader.source("ecgl.edge")
  });
  this._edgePass.setUniform("normalTexture", opt.normalTexture);
  this._edgePass.setUniform("depthTexture", opt.depthTexture);
  this._targetTexture = new Texture2D({
    type: Texture.HALF_FLOAT
  });
  this._frameBuffer = new FrameBuffer();
  this._frameBuffer.attach(this._targetTexture);
}
EdgePass.prototype.update = function(renderer, camera2, sourceTexture, frame) {
  var width = renderer.getWidth();
  var height = renderer.getHeight();
  var texture = this._targetTexture;
  texture.width = width;
  texture.height = height;
  var frameBuffer = this._frameBuffer;
  frameBuffer.bind(renderer);
  this._edgePass.setUniform("projectionInv", camera2.invProjectionMatrix.array);
  this._edgePass.setUniform("textureSize", [width, height]);
  this._edgePass.setUniform("texture", sourceTexture);
  this._edgePass.render(renderer);
  frameBuffer.unbind(renderer);
};
EdgePass.prototype.getTargetTexture = function() {
  return this._targetTexture;
};
EdgePass.prototype.setParameter = function(name, val) {
  this._edgePass.setUniform(name, val);
};
EdgePass.prototype.dispose = function(renderer) {
  this._targetTexture.dispose(renderer);
  this._frameBuffer.dispose(renderer);
};
const effectJson = {
  "nodes": [{
    "name": "source",
    "type": "texture",
    "outputs": {
      "color": {}
    }
  }, {
    "name": "source_half",
    "shader": "#source(clay.compositor.downsample)",
    "inputs": {
      "texture": "source"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0 / 2)",
          "height": "expr(height * 1.0 / 2)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "textureSize": "expr( [width * 1.0, height * 1.0] )"
    }
  }, {
    "name": "bright",
    "shader": "#source(clay.compositor.bright)",
    "inputs": {
      "texture": "source_half"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0 / 2)",
          "height": "expr(height * 1.0 / 2)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "threshold": 2,
      "scale": 4,
      "textureSize": "expr([width * 1.0 / 2, height / 2])"
    }
  }, {
    "name": "bright_downsample_4",
    "shader": "#source(clay.compositor.downsample)",
    "inputs": {
      "texture": "bright"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0 / 4)",
          "height": "expr(height * 1.0 / 4)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "textureSize": "expr( [width * 1.0 / 2, height / 2] )"
    }
  }, {
    "name": "bright_downsample_8",
    "shader": "#source(clay.compositor.downsample)",
    "inputs": {
      "texture": "bright_downsample_4"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0 / 8)",
          "height": "expr(height * 1.0 / 8)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "textureSize": "expr( [width * 1.0 / 4, height / 4] )"
    }
  }, {
    "name": "bright_downsample_16",
    "shader": "#source(clay.compositor.downsample)",
    "inputs": {
      "texture": "bright_downsample_8"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0 / 16)",
          "height": "expr(height * 1.0 / 16)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "textureSize": "expr( [width * 1.0 / 8, height / 8] )"
    }
  }, {
    "name": "bright_downsample_32",
    "shader": "#source(clay.compositor.downsample)",
    "inputs": {
      "texture": "bright_downsample_16"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0 / 32)",
          "height": "expr(height * 1.0 / 32)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "textureSize": "expr( [width * 1.0 / 16, height / 16] )"
    }
  }, {
    "name": "bright_upsample_16_blur_h",
    "shader": "#source(clay.compositor.gaussian_blur)",
    "inputs": {
      "texture": "bright_downsample_32"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0 / 16)",
          "height": "expr(height * 1.0 / 16)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "blurSize": 1,
      "blurDir": 0,
      "textureSize": "expr( [width * 1.0 / 32, height / 32] )"
    }
  }, {
    "name": "bright_upsample_16_blur_v",
    "shader": "#source(clay.compositor.gaussian_blur)",
    "inputs": {
      "texture": "bright_upsample_16_blur_h"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0 / 16)",
          "height": "expr(height * 1.0 / 16)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "blurSize": 1,
      "blurDir": 1,
      "textureSize": "expr( [width * 1.0 / 16, height * 1.0 / 16] )"
    }
  }, {
    "name": "bright_upsample_8_blur_h",
    "shader": "#source(clay.compositor.gaussian_blur)",
    "inputs": {
      "texture": "bright_downsample_16"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0 / 8)",
          "height": "expr(height * 1.0 / 8)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "blurSize": 1,
      "blurDir": 0,
      "textureSize": "expr( [width * 1.0 / 16, height * 1.0 / 16] )"
    }
  }, {
    "name": "bright_upsample_8_blur_v",
    "shader": "#source(clay.compositor.gaussian_blur)",
    "inputs": {
      "texture": "bright_upsample_8_blur_h"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0 / 8)",
          "height": "expr(height * 1.0 / 8)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "blurSize": 1,
      "blurDir": 1,
      "textureSize": "expr( [width * 1.0 / 8, height * 1.0 / 8] )"
    }
  }, {
    "name": "bright_upsample_8_blend",
    "shader": "#source(clay.compositor.blend)",
    "inputs": {
      "texture1": "bright_upsample_8_blur_v",
      "texture2": "bright_upsample_16_blur_v"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0 / 8)",
          "height": "expr(height * 1.0 / 8)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "weight1": 0.3,
      "weight2": 0.7
    }
  }, {
    "name": "bright_upsample_4_blur_h",
    "shader": "#source(clay.compositor.gaussian_blur)",
    "inputs": {
      "texture": "bright_downsample_8"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0 / 4)",
          "height": "expr(height * 1.0 / 4)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "blurSize": 1,
      "blurDir": 0,
      "textureSize": "expr( [width * 1.0 / 8, height * 1.0 / 8] )"
    }
  }, {
    "name": "bright_upsample_4_blur_v",
    "shader": "#source(clay.compositor.gaussian_blur)",
    "inputs": {
      "texture": "bright_upsample_4_blur_h"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0 / 4)",
          "height": "expr(height * 1.0 / 4)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "blurSize": 1,
      "blurDir": 1,
      "textureSize": "expr( [width * 1.0 / 4, height * 1.0 / 4] )"
    }
  }, {
    "name": "bright_upsample_4_blend",
    "shader": "#source(clay.compositor.blend)",
    "inputs": {
      "texture1": "bright_upsample_4_blur_v",
      "texture2": "bright_upsample_8_blend"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0 / 4)",
          "height": "expr(height * 1.0 / 4)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "weight1": 0.3,
      "weight2": 0.7
    }
  }, {
    "name": "bright_upsample_2_blur_h",
    "shader": "#source(clay.compositor.gaussian_blur)",
    "inputs": {
      "texture": "bright_downsample_4"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0 / 2)",
          "height": "expr(height * 1.0 / 2)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "blurSize": 1,
      "blurDir": 0,
      "textureSize": "expr( [width * 1.0 / 4, height * 1.0 / 4] )"
    }
  }, {
    "name": "bright_upsample_2_blur_v",
    "shader": "#source(clay.compositor.gaussian_blur)",
    "inputs": {
      "texture": "bright_upsample_2_blur_h"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0 / 2)",
          "height": "expr(height * 1.0 / 2)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "blurSize": 1,
      "blurDir": 1,
      "textureSize": "expr( [width * 1.0 / 2, height * 1.0 / 2] )"
    }
  }, {
    "name": "bright_upsample_2_blend",
    "shader": "#source(clay.compositor.blend)",
    "inputs": {
      "texture1": "bright_upsample_2_blur_v",
      "texture2": "bright_upsample_4_blend"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0 / 2)",
          "height": "expr(height * 1.0 / 2)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "weight1": 0.3,
      "weight2": 0.7
    }
  }, {
    "name": "bright_upsample_full_blur_h",
    "shader": "#source(clay.compositor.gaussian_blur)",
    "inputs": {
      "texture": "bright"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0)",
          "height": "expr(height * 1.0)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "blurSize": 1,
      "blurDir": 0,
      "textureSize": "expr( [width * 1.0 / 2, height * 1.0 / 2] )"
    }
  }, {
    "name": "bright_upsample_full_blur_v",
    "shader": "#source(clay.compositor.gaussian_blur)",
    "inputs": {
      "texture": "bright_upsample_full_blur_h"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0)",
          "height": "expr(height * 1.0)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "blurSize": 1,
      "blurDir": 1,
      "textureSize": "expr( [width * 1.0, height * 1.0] )"
    }
  }, {
    "name": "bloom_composite",
    "shader": "#source(clay.compositor.blend)",
    "inputs": {
      "texture1": "bright_upsample_full_blur_v",
      "texture2": "bright_upsample_2_blend"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0)",
          "height": "expr(height * 1.0)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "weight1": 0.3,
      "weight2": 0.7
    }
  }, {
    "name": "coc",
    "shader": "#source(ecgl.dof.coc)",
    "outputs": {
      "color": {
        "parameters": {
          "minFilter": "NEAREST",
          "magFilter": "NEAREST",
          "width": "expr(width * 1.0)",
          "height": "expr(height * 1.0)"
        }
      }
    },
    "parameters": {
      "focalDist": 50,
      "focalRange": 30
    }
  }, {
    "name": "dof_far_blur",
    "shader": "#source(ecgl.dof.diskBlur)",
    "inputs": {
      "texture": "source",
      "coc": "coc"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0)",
          "height": "expr(height * 1.0)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "textureSize": "expr( [width * 1.0, height * 1.0] )"
    }
  }, {
    "name": "dof_near_blur",
    "shader": "#source(ecgl.dof.diskBlur)",
    "inputs": {
      "texture": "source",
      "coc": "coc"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0)",
          "height": "expr(height * 1.0)",
          "type": "HALF_FLOAT"
        }
      }
    },
    "parameters": {
      "textureSize": "expr( [width * 1.0, height * 1.0] )"
    },
    "defines": {
      "BLUR_NEARFIELD": null
    }
  }, {
    "name": "dof_coc_blur",
    "shader": "#source(ecgl.dof.diskBlur)",
    "inputs": {
      "texture": "coc"
    },
    "outputs": {
      "color": {
        "parameters": {
          "minFilter": "NEAREST",
          "magFilter": "NEAREST",
          "width": "expr(width * 1.0)",
          "height": "expr(height * 1.0)"
        }
      }
    },
    "parameters": {
      "textureSize": "expr( [width * 1.0, height * 1.0] )"
    },
    "defines": {
      "BLUR_COC": null
    }
  }, {
    "name": "dof_composite",
    "shader": "#source(ecgl.dof.composite)",
    "inputs": {
      "original": "source",
      "blurred": "dof_far_blur",
      "nearfield": "dof_near_blur",
      "coc": "coc",
      "nearcoc": "dof_coc_blur"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0)",
          "height": "expr(height * 1.0)",
          "type": "HALF_FLOAT"
        }
      }
    }
  }, {
    "name": "composite",
    "shader": "#source(clay.compositor.hdr.composite)",
    "inputs": {
      "texture": "source",
      "bloom": "bloom_composite"
    },
    "outputs": {
      "color": {
        "parameters": {
          "width": "expr(width * 1.0)",
          "height": "expr(height * 1.0)"
        }
      }
    },
    "defines": {
      // Images are all premultiplied alpha before composite because of blending.
      // 'PREMULTIPLY_ALPHA': null,
      // 'DEBUG': 2
    }
  }, {
    "name": "FXAA",
    "shader": "#source(clay.compositor.fxaa)",
    "inputs": {
      "texture": "composite"
    }
  }]
};
const DOFCode = "@export ecgl.dof.coc\n\nuniform sampler2D depth;\n\nuniform float zNear: 0.1;\nuniform float zFar: 2000;\n\nuniform float focalDistance: 3;\nuniform float focalRange: 1;\nuniform float focalLength: 30;\nuniform float fstop: 2.8;\n\nvarying vec2 v_Texcoord;\n\n@import clay.util.encode_float\n\nvoid main()\n{\n float z = texture2D(depth, v_Texcoord).r * 2.0 - 1.0;\n\n float dist = 2.0 * zNear * zFar / (zFar + zNear - z * (zFar - zNear));\n\n float aperture = focalLength / fstop;\n\n float coc;\n\n float uppper = focalDistance + focalRange;\n float lower = focalDistance - focalRange;\n if (dist <= uppper && dist >= lower) {\n coc = 0.5;\n }\n else {\n float focalAdjusted = dist > uppper ? uppper : lower;\n\n coc = abs(aperture * (focalLength * (dist - focalAdjusted)) / (dist * (focalAdjusted - focalLength)));\n coc = clamp(coc, 0.0, 2.0) / 2.00001;\n\n if (dist < lower) {\n coc = -coc;\n }\n coc = coc * 0.5 + 0.5;\n }\n\n gl_FragColor = encodeFloat(coc);\n}\n@end\n\n\n@export ecgl.dof.composite\n\n#define DEBUG 0\n\nuniform sampler2D original;\nuniform sampler2D blurred;\nuniform sampler2D nearfield;\nuniform sampler2D coc;\nuniform sampler2D nearcoc;\nvarying vec2 v_Texcoord;\n\n@import clay.util.rgbm\n@import clay.util.float\n\nvoid main()\n{\n vec4 blurredColor = texture2D(blurred, v_Texcoord);\n vec4 originalColor = texture2D(original, v_Texcoord);\n\n float fCoc = decodeFloat(texture2D(coc, v_Texcoord));\n\n fCoc = abs(fCoc * 2.0 - 1.0);\n\n float weight = smoothstep(0.0, 1.0, fCoc);\n \n#ifdef NEARFIELD_ENABLED\n vec4 nearfieldColor = texture2D(nearfield, v_Texcoord);\n float fNearCoc = decodeFloat(texture2D(nearcoc, v_Texcoord));\n fNearCoc = abs(fNearCoc * 2.0 - 1.0);\n\n gl_FragColor = encodeHDR(\n mix(\n nearfieldColor, mix(originalColor, blurredColor, weight),\n pow(1.0 - fNearCoc, 4.0)\n )\n );\n#else\n gl_FragColor = encodeHDR(mix(originalColor, blurredColor, weight));\n#endif\n\n}\n\n@end\n\n\n\n@export ecgl.dof.diskBlur\n\n#define POISSON_KERNEL_SIZE 16;\n\nuniform sampler2D texture;\nuniform sampler2D coc;\nvarying vec2 v_Texcoord;\n\nuniform float blurRadius : 10.0;\nuniform vec2 textureSize : [512.0, 512.0];\n\nuniform vec2 poissonKernel[POISSON_KERNEL_SIZE];\n\nuniform float percent;\n\nfloat nrand(const in vec2 n) {\n return fract(sin(dot(n.xy ,vec2(12.9898,78.233))) * 43758.5453);\n}\n\n@import clay.util.rgbm\n@import clay.util.float\n\n\nvoid main()\n{\n vec2 offset = blurRadius / textureSize;\n\n float rnd = 6.28318 * nrand(v_Texcoord + 0.07 * percent );\n float cosa = cos(rnd);\n float sina = sin(rnd);\n vec4 basis = vec4(cosa, -sina, sina, cosa);\n\n#if !defined(BLUR_NEARFIELD) && !defined(BLUR_COC)\n offset *= abs(decodeFloat(texture2D(coc, v_Texcoord)) * 2.0 - 1.0);\n#endif\n\n#ifdef BLUR_COC\n float cocSum = 0.0;\n#else\n vec4 color = vec4(0.0);\n#endif\n\n\n float weightSum = 0.0;\n\n for (int i = 0; i < POISSON_KERNEL_SIZE; i++) {\n vec2 ofs = poissonKernel[i];\n\n ofs = vec2(dot(ofs, basis.xy), dot(ofs, basis.zw));\n\n vec2 uv = v_Texcoord + ofs * offset;\n vec4 texel = texture2D(texture, uv);\n\n float w = 1.0;\n#ifdef BLUR_COC\n float fCoc = decodeFloat(texel) * 2.0 - 1.0;\n cocSum += clamp(fCoc, -1.0, 0.0) * w;\n#else\n texel = texel;\n #if !defined(BLUR_NEARFIELD)\n float fCoc = decodeFloat(texture2D(coc, uv)) * 2.0 - 1.0;\n w *= abs(fCoc);\n #endif\n texel.rgb *= texel.a;\n color += texel * w;\n#endif\n\n weightSum += w;\n }\n\n#ifdef BLUR_COC\n gl_FragColor = encodeFloat(clamp(cocSum / weightSum, -1.0, 0.0) * 0.5 + 0.5);\n#else\n color /= weightSum;\n color.rgb /= (color.a + 0.0001);\n gl_FragColor = color;\n#endif\n}\n\n@end";
const edgeCode = "@export ecgl.edge\n\nuniform sampler2D texture;\n\nuniform sampler2D normalTexture;\nuniform sampler2D depthTexture;\n\nuniform mat4 projectionInv;\n\nuniform vec2 textureSize;\n\nuniform vec4 edgeColor: [0,0,0,0.8];\n\nvarying vec2 v_Texcoord;\n\nvec3 packColor(vec2 coord) {\n float z = texture2D(depthTexture, coord).r * 2.0 - 1.0;\n vec4 p = vec4(v_Texcoord * 2.0 - 1.0, z, 1.0);\n vec4 p4 = projectionInv * p;\n\n return vec3(\n texture2D(normalTexture, coord).rg,\n -p4.z / p4.w / 5.0\n );\n}\n\nvoid main() {\n vec2 cc = v_Texcoord;\n vec3 center = packColor(cc);\n\n float size = clamp(1.0 - (center.z - 10.0) / 100.0, 0.0, 1.0) * 0.5;\n float dx = size / textureSize.x;\n float dy = size / textureSize.y;\n\n vec2 coord;\n vec3 topLeft = packColor(cc+vec2(-dx, -dy));\n vec3 top = packColor(cc+vec2(0.0, -dy));\n vec3 topRight = packColor(cc+vec2(dx, -dy));\n vec3 left = packColor(cc+vec2(-dx, 0.0));\n vec3 right = packColor(cc+vec2(dx, 0.0));\n vec3 bottomLeft = packColor(cc+vec2(-dx, dy));\n vec3 bottom = packColor(cc+vec2(0.0, dy));\n vec3 bottomRight = packColor(cc+vec2(dx, dy));\n\n vec3 v = -topLeft-2.0*top-topRight+bottomLeft+2.0*bottom+bottomRight;\n vec3 h = -bottomLeft-2.0*left-topLeft+bottomRight+2.0*right+topRight;\n\n float edge = sqrt(dot(h, h) + dot(v, v));\n\n edge = smoothstep(0.8, 1.0, edge);\n\n gl_FragColor = mix(texture2D(texture, v_Texcoord), vec4(edgeColor.rgb, 1.0), edgeColor.a * edge);\n}\n@end";
Shader["import"](blurCode);
Shader["import"](lutCode);
Shader["import"](outputCode);
Shader["import"](brightCode);
Shader["import"](downsampleCode);
Shader["import"](upsampleCode);
Shader["import"](hdrCode);
Shader["import"](blendCode);
Shader["import"](fxaaCode);
Shader["import"](DOFCode);
Shader["import"](edgeCode);
function makeCommonOutputs(getWidth, getHeight) {
  return {
    color: {
      parameters: {
        width: getWidth,
        height: getHeight
      }
    }
  };
}
var FINAL_NODES_CHAIN = ["composite", "FXAA"];
function EffectCompositor() {
  this._width;
  this._height;
  this._dpr;
  this._sourceTexture = new Texture2D({
    type: Texture.HALF_FLOAT
  });
  this._depthTexture = new Texture2D({
    format: Texture.DEPTH_COMPONENT,
    type: Texture.UNSIGNED_INT
  });
  this._framebuffer = new FrameBuffer();
  this._framebuffer.attach(this._sourceTexture);
  this._framebuffer.attach(this._depthTexture, FrameBuffer.DEPTH_ATTACHMENT);
  this._normalPass = new NormalPass();
  this._compositor = createCompositor(effectJson);
  var sourceNode = this._compositor.getNodeByName("source");
  sourceNode.texture = this._sourceTexture;
  var cocNode = this._compositor.getNodeByName("coc");
  this._sourceNode = sourceNode;
  this._cocNode = cocNode;
  this._compositeNode = this._compositor.getNodeByName("composite");
  this._fxaaNode = this._compositor.getNodeByName("FXAA");
  this._dofBlurNodes = ["dof_far_blur", "dof_near_blur", "dof_coc_blur"].map(function(name) {
    return this._compositor.getNodeByName(name);
  }, this);
  this._dofBlurKernel = 0;
  this._dofBlurKernelSize = new Float32Array(0);
  this._finalNodesChain = FINAL_NODES_CHAIN.map(function(name) {
    return this._compositor.getNodeByName(name);
  }, this);
  var gBufferObj = {
    normalTexture: this._normalPass.getNormalTexture(),
    depthTexture: this._normalPass.getDepthTexture()
  };
  this._ssaoPass = new SSAOPass(gBufferObj);
  this._ssrPass = new SSRPass(gBufferObj);
  this._edgePass = new EdgePass(gBufferObj);
}
EffectCompositor.prototype.resize = function(width, height, dpr) {
  dpr = dpr || 1;
  var width = width * dpr;
  var height = height * dpr;
  var sourceTexture = this._sourceTexture;
  var depthTexture = this._depthTexture;
  sourceTexture.width = width;
  sourceTexture.height = height;
  depthTexture.width = width;
  depthTexture.height = height;
  var rendererMock = {
    getWidth: function() {
      return width;
    },
    getHeight: function() {
      return height;
    },
    getDevicePixelRatio: function() {
      return dpr;
    }
  };
  function wrapCallback(obj, key) {
    if (typeof obj[key] === "function") {
      var oldFunc = obj[key].__original || obj[key];
      obj[key] = function(renderer) {
        return oldFunc.call(this, rendererMock);
      };
      obj[key].__original = oldFunc;
    }
  }
  this._compositor.nodes.forEach(function(node) {
    for (var outKey in node.outputs) {
      var parameters = node.outputs[outKey].parameters;
      if (parameters) {
        wrapCallback(parameters, "width");
        wrapCallback(parameters, "height");
      }
    }
    for (var paramKey in node.parameters) {
      wrapCallback(node.parameters, paramKey);
    }
  });
  this._width = width;
  this._height = height;
  this._dpr = dpr;
};
EffectCompositor.prototype.getWidth = function() {
  return this._width;
};
EffectCompositor.prototype.getHeight = function() {
  return this._height;
};
EffectCompositor.prototype._ifRenderNormalPass = function() {
  return this._enableSSAO || this._enableEdge || this._enableSSR;
};
EffectCompositor.prototype._getPrevNode = function(node) {
  var idx = FINAL_NODES_CHAIN.indexOf(node.name) - 1;
  var prevNode = this._finalNodesChain[idx];
  while (prevNode && !this._compositor.getNodeByName(prevNode.name)) {
    idx -= 1;
    prevNode = this._finalNodesChain[idx];
  }
  return prevNode;
};
EffectCompositor.prototype._getNextNode = function(node) {
  var idx = FINAL_NODES_CHAIN.indexOf(node.name) + 1;
  var nextNode = this._finalNodesChain[idx];
  while (nextNode && !this._compositor.getNodeByName(nextNode.name)) {
    idx += 1;
    nextNode = this._finalNodesChain[idx];
  }
  return nextNode;
};
EffectCompositor.prototype._addChainNode = function(node) {
  var prevNode = this._getPrevNode(node);
  var nextNode = this._getNextNode(node);
  if (!prevNode) {
    return;
  }
  node.inputs.texture = prevNode.name;
  if (nextNode) {
    node.outputs = makeCommonOutputs(this.getWidth.bind(this), this.getHeight.bind(this));
    nextNode.inputs.texture = node.name;
  } else {
    node.outputs = null;
  }
  this._compositor.addNode(node);
};
EffectCompositor.prototype._removeChainNode = function(node) {
  var prevNode = this._getPrevNode(node);
  var nextNode = this._getNextNode(node);
  if (!prevNode) {
    return;
  }
  if (nextNode) {
    prevNode.outputs = makeCommonOutputs(this.getWidth.bind(this), this.getHeight.bind(this));
    nextNode.inputs.texture = prevNode.name;
  } else {
    prevNode.outputs = null;
  }
  this._compositor.removeNode(node);
};
EffectCompositor.prototype.updateNormal = function(renderer, scene, camera2, frame) {
  if (this._ifRenderNormalPass()) {
    this._normalPass.update(renderer, scene, camera2);
  }
};
EffectCompositor.prototype.updateSSAO = function(renderer, scene, camera2, frame) {
  this._ssaoPass.update(renderer, camera2, frame);
};
EffectCompositor.prototype.enableSSAO = function() {
  this._enableSSAO = true;
};
EffectCompositor.prototype.disableSSAO = function() {
  this._enableSSAO = false;
};
EffectCompositor.prototype.enableSSR = function() {
  this._enableSSR = true;
};
EffectCompositor.prototype.disableSSR = function() {
  this._enableSSR = false;
};
EffectCompositor.prototype.getSSAOTexture = function() {
  return this._ssaoPass.getTargetTexture();
};
EffectCompositor.prototype.getSourceFrameBuffer = function() {
  return this._framebuffer;
};
EffectCompositor.prototype.getSourceTexture = function() {
  return this._sourceTexture;
};
EffectCompositor.prototype.disableFXAA = function() {
  this._removeChainNode(this._fxaaNode);
};
EffectCompositor.prototype.enableFXAA = function() {
  this._addChainNode(this._fxaaNode);
};
EffectCompositor.prototype.enableBloom = function() {
  this._compositeNode.inputs.bloom = "bloom_composite";
  this._compositor.dirty();
};
EffectCompositor.prototype.disableBloom = function() {
  this._compositeNode.inputs.bloom = null;
  this._compositor.dirty();
};
EffectCompositor.prototype.enableDOF = function() {
  this._compositeNode.inputs.texture = "dof_composite";
  this._compositor.dirty();
};
EffectCompositor.prototype.disableDOF = function() {
  this._compositeNode.inputs.texture = "source";
  this._compositor.dirty();
};
EffectCompositor.prototype.enableColorCorrection = function() {
  this._compositeNode.define("COLOR_CORRECTION");
  this._enableColorCorrection = true;
};
EffectCompositor.prototype.disableColorCorrection = function() {
  this._compositeNode.undefine("COLOR_CORRECTION");
  this._enableColorCorrection = false;
};
EffectCompositor.prototype.enableEdge = function() {
  this._enableEdge = true;
};
EffectCompositor.prototype.disableEdge = function() {
  this._enableEdge = false;
};
EffectCompositor.prototype.setBloomIntensity = function(value) {
  this._compositeNode.setParameter("bloomIntensity", value);
};
EffectCompositor.prototype.setSSAOParameter = function(name, value) {
  switch (name) {
    case "quality":
      var kernelSize = {
        low: 6,
        medium: 12,
        high: 32,
        ultra: 62
      }[value] || 12;
      this._ssaoPass.setParameter("kernelSize", kernelSize);
      break;
    case "radius":
      this._ssaoPass.setParameter(name, value);
      this._ssaoPass.setParameter("bias", value / 200);
      break;
    case "intensity":
      this._ssaoPass.setParameter(name, value);
      break;
  }
};
EffectCompositor.prototype.setDOFParameter = function(name, value) {
  switch (name) {
    case "focalDistance":
    case "focalRange":
    case "fstop":
      this._cocNode.setParameter(name, value);
      break;
    case "blurRadius":
      for (var i = 0; i < this._dofBlurNodes.length; i++) {
        this._dofBlurNodes[i].setParameter("blurRadius", value);
      }
      break;
    case "quality":
      var kernelSize = {
        low: 4,
        medium: 8,
        high: 16,
        ultra: 32
      }[value] || 8;
      this._dofBlurKernelSize = kernelSize;
      for (var i = 0; i < this._dofBlurNodes.length; i++) {
        this._dofBlurNodes[i].pass.material.define("POISSON_KERNEL_SIZE", kernelSize);
      }
      this._dofBlurKernel = new Float32Array(kernelSize * 2);
      break;
  }
};
EffectCompositor.prototype.setSSRParameter = function(name, value) {
  if (value == null) {
    return;
  }
  switch (name) {
    case "quality":
      var maxIteration = {
        low: 10,
        medium: 15,
        high: 30,
        ultra: 80
      }[value] || 20;
      var pixelStride = {
        low: 32,
        medium: 16,
        high: 8,
        ultra: 4
      }[value] || 16;
      this._ssrPass.setParameter("maxIteration", maxIteration);
      this._ssrPass.setParameter("pixelStride", pixelStride);
      break;
    case "maxRoughness":
      this._ssrPass.setParameter("minGlossiness", Math.max(Math.min(1 - value, 1), 0));
      break;
    case "physical":
      this.setPhysicallyCorrectSSR(value);
      break;
    default:
      console.warn("Unkown SSR parameter " + name);
  }
};
EffectCompositor.prototype.setPhysicallyCorrectSSR = function(physical) {
  this._ssrPass.setPhysicallyCorrect(physical);
};
EffectCompositor.prototype.setEdgeColor = function(value) {
  var color = graphicGL.parseColor(value);
  this._edgePass.setParameter("edgeColor", color);
};
EffectCompositor.prototype.setExposure = function(value) {
  this._compositeNode.setParameter("exposure", Math.pow(2, value));
};
EffectCompositor.prototype.setColorLookupTexture = function(image, api) {
  this._compositeNode.pass.material.setTextureImage("lut", this._enableColorCorrection ? image : "none", api, {
    minFilter: graphicGL.Texture.NEAREST,
    magFilter: graphicGL.Texture.NEAREST,
    flipY: false
  });
};
EffectCompositor.prototype.setColorCorrection = function(type, value) {
  this._compositeNode.setParameter(type, value);
};
EffectCompositor.prototype.isSSREnabled = function() {
  return this._enableSSR;
};
EffectCompositor.prototype.composite = function(renderer, scene, camera2, framebuffer, frame) {
  var sourceTexture = this._sourceTexture;
  var targetTexture = sourceTexture;
  if (this._enableEdge) {
    this._edgePass.update(renderer, camera2, sourceTexture, frame);
    sourceTexture = targetTexture = this._edgePass.getTargetTexture();
  }
  if (this._enableSSR) {
    this._ssrPass.update(renderer, camera2, sourceTexture, frame);
    targetTexture = this._ssrPass.getTargetTexture();
    this._ssrPass.setSSAOTexture(this._enableSSAO ? this._ssaoPass.getTargetTexture() : null);
  }
  this._sourceNode.texture = targetTexture;
  this._cocNode.setParameter("depth", this._depthTexture);
  var blurKernel = this._dofBlurKernel;
  var blurKernelSize = this._dofBlurKernelSize;
  var frameAll = Math.floor(poissonKernel.length / 2 / blurKernelSize);
  var kernelOffset = frame % frameAll;
  for (var i = 0; i < blurKernelSize * 2; i++) {
    blurKernel[i] = poissonKernel[i + kernelOffset * blurKernelSize * 2];
  }
  for (var i = 0; i < this._dofBlurNodes.length; i++) {
    this._dofBlurNodes[i].setParameter("percent", frame / 30);
    this._dofBlurNodes[i].setParameter("poissonKernel", blurKernel);
  }
  this._cocNode.setParameter("zNear", camera2.near);
  this._cocNode.setParameter("zFar", camera2.far);
  this._compositor.render(renderer, framebuffer);
};
EffectCompositor.prototype.dispose = function(renderer) {
  this._sourceTexture.dispose(renderer);
  this._depthTexture.dispose(renderer);
  this._framebuffer.dispose(renderer);
  this._compositor.dispose(renderer);
  this._normalPass.dispose(renderer);
  this._ssaoPass.dispose(renderer);
};
function TemporalSuperSampling(frames) {
  var haltonSequence = [];
  for (var i = 0; i < 30; i++) {
    haltonSequence.push([halton(i, 2), halton(i, 3)]);
  }
  this._haltonSequence = haltonSequence;
  this._frame = 0;
  this._sourceTex = new Texture2D();
  this._sourceFb = new FrameBuffer();
  this._sourceFb.attach(this._sourceTex);
  this._prevFrameTex = new Texture2D();
  this._outputTex = new Texture2D();
  var blendPass = this._blendPass = new Pass({
    fragment: Shader.source("clay.compositor.blend")
  });
  blendPass.material.disableTexturesAll();
  blendPass.material.enableTexture(["texture1", "texture2"]);
  this._blendFb = new FrameBuffer({
    depthBuffer: false
  });
  this._outputPass = new Pass({
    fragment: Shader.source("clay.compositor.output"),
    // TODO, alpha is premultiplied?
    blendWithPrevious: true
  });
  this._outputPass.material.define("fragment", "OUTPUT_ALPHA");
  this._outputPass.material.blend = function(_gl) {
    _gl.blendEquationSeparate(_gl.FUNC_ADD, _gl.FUNC_ADD);
    _gl.blendFuncSeparate(_gl.ONE, _gl.ONE_MINUS_SRC_ALPHA, _gl.ONE, _gl.ONE_MINUS_SRC_ALPHA);
  };
}
TemporalSuperSampling.prototype = {
  constructor: TemporalSuperSampling,
  /**
   * Jitter camera projectionMatrix
   * @parma {clay.Renderer} renderer
   * @param {clay.Camera} camera
   */
  jitterProjection: function(renderer, camera2) {
    var viewport = renderer.viewport;
    var dpr = viewport.devicePixelRatio || renderer.getDevicePixelRatio();
    var width = viewport.width * dpr;
    var height = viewport.height * dpr;
    var offset = this._haltonSequence[this._frame % this._haltonSequence.length];
    var translationMat = new Matrix4();
    translationMat.array[12] = (offset[0] * 2 - 1) / width;
    translationMat.array[13] = (offset[1] * 2 - 1) / height;
    Matrix4.mul(camera2.projectionMatrix, translationMat, camera2.projectionMatrix);
    Matrix4.invert(camera2.invProjectionMatrix, camera2.projectionMatrix);
  },
  /**
   * Reset accumulating frame
   */
  resetFrame: function() {
    this._frame = 0;
  },
  /**
   * Return current frame
   */
  getFrame: function() {
    return this._frame;
  },
  /**
   * Get source framebuffer for usage
   */
  getSourceFrameBuffer: function() {
    return this._sourceFb;
  },
  getOutputTexture: function() {
    return this._outputTex;
  },
  resize: function(width, height) {
    this._prevFrameTex.width = width;
    this._prevFrameTex.height = height;
    this._outputTex.width = width;
    this._outputTex.height = height;
    this._sourceTex.width = width;
    this._sourceTex.height = height;
    this._prevFrameTex.dirty();
    this._outputTex.dirty();
    this._sourceTex.dirty();
  },
  isFinished: function() {
    return this._frame >= this._haltonSequence.length;
  },
  render: function(renderer, sourceTex, notOutput) {
    var blendPass = this._blendPass;
    if (this._frame === 0) {
      blendPass.setUniform("weight1", 0);
      blendPass.setUniform("weight2", 1);
    } else {
      blendPass.setUniform("weight1", 0.9);
      blendPass.setUniform("weight2", 0.1);
    }
    blendPass.setUniform("texture1", this._prevFrameTex);
    blendPass.setUniform("texture2", sourceTex || this._sourceTex);
    this._blendFb.attach(this._outputTex);
    this._blendFb.bind(renderer);
    blendPass.render(renderer);
    this._blendFb.unbind(renderer);
    if (!notOutput) {
      this._outputPass.setUniform("texture", this._outputTex);
      this._outputPass.render(renderer);
    }
    var tmp = this._prevFrameTex;
    this._prevFrameTex = this._outputTex;
    this._outputTex = tmp;
    this._frame++;
  },
  dispose: function(renderer) {
    this._sourceFb.dispose(renderer);
    this._blendFb.dispose(renderer);
    this._prevFrameTex.dispose(renderer);
    this._outputTex.dispose(renderer);
    this._sourceTex.dispose(renderer);
    this._outputPass.dispose(renderer);
    this._blendPass.dispose(renderer);
  }
};
function ViewGL(projection) {
  projection = projection || "perspective";
  this.layer = null;
  this.scene = new Scene();
  this.rootNode = this.scene;
  this.viewport = {
    x: 0,
    y: 0,
    width: 0,
    height: 0
  };
  this.setProjection(projection);
  this._compositor = new EffectCompositor();
  this._temporalSS = new TemporalSuperSampling();
  this._shadowMapPass = new ShadowMapPass();
  var pcfKernels = [];
  var off = 0;
  for (var i = 0; i < 30; i++) {
    var pcfKernel = [];
    for (var k = 0; k < 6; k++) {
      pcfKernel.push(halton(off, 2) * 4 - 2);
      pcfKernel.push(halton(off, 3) * 4 - 2);
      off++;
    }
    pcfKernels.push(pcfKernel);
  }
  this._pcfKernels = pcfKernels;
  this.scene.on("beforerender", function(renderer, scene, camera2) {
    if (this.needsTemporalSS()) {
      this._temporalSS.jitterProjection(renderer, camera2);
    }
  }, this);
}
ViewGL.prototype.setProjection = function(projection) {
  var oldCamera = this.camera;
  oldCamera && oldCamera.update();
  if (projection === "perspective") {
    if (!(this.camera instanceof Perspective)) {
      this.camera = new Perspective();
      if (oldCamera) {
        this.camera.setLocalTransform(oldCamera.localTransform);
      }
    }
  } else {
    if (!(this.camera instanceof Orthographic)) {
      this.camera = new Orthographic();
      if (oldCamera) {
        this.camera.setLocalTransform(oldCamera.localTransform);
      }
    }
  }
  this.camera.near = 0.1;
  this.camera.far = 2e3;
};
ViewGL.prototype.setViewport = function(x, y, width, height, dpr) {
  if (this.camera instanceof Perspective) {
    this.camera.aspect = width / height;
  }
  dpr = dpr || 1;
  this.viewport.x = x;
  this.viewport.y = y;
  this.viewport.width = width;
  this.viewport.height = height;
  this.viewport.devicePixelRatio = dpr;
  this._compositor.resize(width * dpr, height * dpr);
  this._temporalSS.resize(width * dpr, height * dpr);
};
ViewGL.prototype.containPoint = function(x, y) {
  var viewport = this.viewport;
  var height = this.layer.renderer.getHeight();
  y = height - y;
  return x >= viewport.x && y >= viewport.y && x <= viewport.x + viewport.width && y <= viewport.y + viewport.height;
};
var ndc = new Vector2();
ViewGL.prototype.castRay = function(x, y, out) {
  var renderer = this.layer.renderer;
  var oldViewport = renderer.viewport;
  renderer.viewport = this.viewport;
  renderer.screenToNDC(x, y, ndc);
  this.camera.castRay(ndc, out);
  renderer.viewport = oldViewport;
  return out;
};
ViewGL.prototype.prepareRender = function() {
  this.scene.update();
  this.camera.update();
  this.scene.updateLights();
  var renderList = this.scene.updateRenderList(this.camera);
  this._needsSortProgressively = false;
  for (var i = 0; i < renderList.transparent.length; i++) {
    var renderable = renderList.transparent[i];
    var geometry = renderable.geometry;
    if (geometry.needsSortVerticesProgressively && geometry.needsSortVerticesProgressively()) {
      this._needsSortProgressively = true;
    }
    if (geometry.needsSortTrianglesProgressively && geometry.needsSortTrianglesProgressively()) {
      this._needsSortProgressively = true;
    }
  }
  this._frame = 0;
  this._temporalSS.resetFrame();
};
ViewGL.prototype.render = function(renderer, accumulating) {
  this._doRender(renderer, accumulating, this._frame);
  this._frame++;
};
ViewGL.prototype.needsAccumulate = function() {
  return this.needsTemporalSS() || this._needsSortProgressively;
};
ViewGL.prototype.needsTemporalSS = function() {
  var enableTemporalSS = this._enableTemporalSS;
  if (enableTemporalSS === "auto") {
    enableTemporalSS = this._enablePostEffect;
  }
  return enableTemporalSS;
};
ViewGL.prototype.hasDOF = function() {
  return this._enableDOF;
};
ViewGL.prototype.isAccumulateFinished = function() {
  return this.needsTemporalSS() ? this._temporalSS.isFinished() : this._frame > 30;
};
ViewGL.prototype._doRender = function(renderer, accumulating, accumFrame) {
  var scene = this.scene;
  var camera2 = this.camera;
  accumFrame = accumFrame || 0;
  this._updateTransparent(renderer, scene, camera2, accumFrame);
  if (!accumulating) {
    this._shadowMapPass.kernelPCF = this._pcfKernels[0];
    this._shadowMapPass.render(renderer, scene, camera2, true);
  }
  this._updateShadowPCFKernel(accumFrame);
  var bgColor = renderer.clearColor;
  renderer.gl.clearColor(bgColor[0], bgColor[1], bgColor[2], bgColor[3]);
  if (this._enablePostEffect) {
    if (this.needsTemporalSS()) {
      this._temporalSS.jitterProjection(renderer, camera2);
    }
    this._compositor.updateNormal(renderer, scene, camera2, this._temporalSS.getFrame());
  }
  this._updateSSAO(renderer, scene, camera2, this._temporalSS.getFrame());
  if (this._enablePostEffect) {
    var frameBuffer = this._compositor.getSourceFrameBuffer();
    frameBuffer.bind(renderer);
    renderer.gl.clear(renderer.gl.DEPTH_BUFFER_BIT | renderer.gl.COLOR_BUFFER_BIT);
    renderer.render(scene, camera2, true, true);
    frameBuffer.unbind(renderer);
    if (this.needsTemporalSS() && accumulating) {
      this._compositor.composite(renderer, scene, camera2, this._temporalSS.getSourceFrameBuffer(), this._temporalSS.getFrame());
      renderer.setViewport(this.viewport);
      this._temporalSS.render(renderer);
    } else {
      renderer.setViewport(this.viewport);
      this._compositor.composite(renderer, scene, camera2, null, 0);
    }
  } else {
    if (this.needsTemporalSS() && accumulating) {
      var frameBuffer = this._temporalSS.getSourceFrameBuffer();
      frameBuffer.bind(renderer);
      renderer.saveClear();
      renderer.clearBit = renderer.gl.DEPTH_BUFFER_BIT | renderer.gl.COLOR_BUFFER_BIT;
      renderer.render(scene, camera2, true, true);
      renderer.restoreClear();
      frameBuffer.unbind(renderer);
      renderer.setViewport(this.viewport);
      this._temporalSS.render(renderer);
    } else {
      renderer.setViewport(this.viewport);
      renderer.render(scene, camera2, true, true);
    }
  }
};
ViewGL.prototype._updateTransparent = function(renderer, scene, camera2, frame) {
  var v3 = new Vector3();
  var invWorldTransform = new Matrix4();
  var cameraWorldPosition = camera2.getWorldPosition();
  var transparentList = scene.getRenderList(camera2).transparent;
  for (var i = 0; i < transparentList.length; i++) {
    var renderable = transparentList[i];
    var geometry = renderable.geometry;
    Matrix4.invert(invWorldTransform, renderable.worldTransform);
    Vector3.transformMat4(v3, cameraWorldPosition, invWorldTransform);
    if (geometry.needsSortTriangles && geometry.needsSortTriangles()) {
      geometry.doSortTriangles(v3, frame);
    }
    if (geometry.needsSortVertices && geometry.needsSortVertices()) {
      geometry.doSortVertices(v3, frame);
    }
  }
};
ViewGL.prototype._updateSSAO = function(renderer, scene, camera2) {
  var ifEnableSSAO = this._enableSSAO && this._enablePostEffect;
  if (ifEnableSSAO) {
    this._compositor.updateSSAO(renderer, scene, camera2, this._temporalSS.getFrame());
  }
  var renderList = scene.getRenderList(camera2);
  for (var i = 0; i < renderList.opaque.length; i++) {
    var renderable = renderList.opaque[i];
    if (renderable.renderNormal) {
      renderable.material[ifEnableSSAO ? "enableTexture" : "disableTexture"]("ssaoMap");
    }
    if (ifEnableSSAO) {
      renderable.material.set("ssaoMap", this._compositor.getSSAOTexture());
    }
  }
};
ViewGL.prototype._updateShadowPCFKernel = function(frame) {
  var pcfKernel = this._pcfKernels[frame % this._pcfKernels.length];
  var renderList = this.scene.getRenderList(this.camera);
  var opaqueList = renderList.opaque;
  for (var i = 0; i < opaqueList.length; i++) {
    if (opaqueList[i].receiveShadow) {
      opaqueList[i].material.set("pcfKernel", pcfKernel);
      opaqueList[i].material.define("fragment", "PCF_KERNEL_SIZE", pcfKernel.length / 2);
    }
  }
};
ViewGL.prototype.dispose = function(renderer) {
  this._compositor.dispose(renderer.gl);
  this._temporalSS.dispose(renderer.gl);
  this._shadowMapPass.dispose(renderer);
};
ViewGL.prototype.setPostEffect = function(postEffectModel, api) {
  var compositor = this._compositor;
  this._enablePostEffect = postEffectModel.get("enable");
  var bloomModel = postEffectModel.getModel("bloom");
  var edgeModel = postEffectModel.getModel("edge");
  var dofModel = postEffectModel.getModel("DOF", postEffectModel.getModel("depthOfField"));
  var ssaoModel = postEffectModel.getModel("SSAO", postEffectModel.getModel("screenSpaceAmbientOcclusion"));
  var ssrModel = postEffectModel.getModel("SSR", postEffectModel.getModel("screenSpaceReflection"));
  var fxaaModel = postEffectModel.getModel("FXAA");
  var colorCorrModel = postEffectModel.getModel("colorCorrection");
  bloomModel.get("enable") ? compositor.enableBloom() : compositor.disableBloom();
  dofModel.get("enable") ? compositor.enableDOF() : compositor.disableDOF();
  ssrModel.get("enable") ? compositor.enableSSR() : compositor.disableSSR();
  colorCorrModel.get("enable") ? compositor.enableColorCorrection() : compositor.disableColorCorrection();
  edgeModel.get("enable") ? compositor.enableEdge() : compositor.disableEdge();
  fxaaModel.get("enable") ? compositor.enableFXAA() : compositor.disableFXAA();
  this._enableDOF = dofModel.get("enable");
  this._enableSSAO = ssaoModel.get("enable");
  this._enableSSAO ? compositor.enableSSAO() : compositor.disableSSAO();
  compositor.setBloomIntensity(bloomModel.get("intensity"));
  compositor.setEdgeColor(edgeModel.get("color"));
  compositor.setColorLookupTexture(colorCorrModel.get("lookupTexture"), api);
  compositor.setExposure(colorCorrModel.get("exposure"));
  ["radius", "quality", "intensity"].forEach(function(name) {
    compositor.setSSAOParameter(name, ssaoModel.get(name));
  });
  ["quality", "maxRoughness", "physical"].forEach(function(name) {
    compositor.setSSRParameter(name, ssrModel.get(name));
  });
  ["quality", "focalDistance", "focalRange", "blurRadius", "fstop"].forEach(function(name) {
    compositor.setDOFParameter(name, dofModel.get(name));
  });
  ["brightness", "contrast", "saturation"].forEach(function(name) {
    compositor.setColorCorrection(name, colorCorrModel.get(name));
  });
};
ViewGL.prototype.setDOFFocusOnPoint = function(depth) {
  if (this._enablePostEffect) {
    if (depth > this.camera.far || depth < this.camera.near) {
      return;
    }
    this._compositor.setDOFParameter("focalDistance", depth);
    return true;
  }
};
ViewGL.prototype.setTemporalSuperSampling = function(temporalSuperSamplingModel) {
  this._enableTemporalSS = temporalSuperSamplingModel.get("enable");
};
ViewGL.prototype.isLinearSpace = function() {
  return this._enablePostEffect;
};
ViewGL.prototype.setRootNode = function(rootNode) {
  if (this.rootNode === rootNode) {
    return;
  }
  var children = this.rootNode.children();
  for (var i = 0; i < children.length; i++) {
    rootNode.add(children[i]);
  }
  if (rootNode !== this.scene) {
    this.scene.add(rootNode);
  }
  this.rootNode = rootNode;
};
ViewGL.prototype.add = function(node3D) {
  this.rootNode.add(node3D);
};
ViewGL.prototype.remove = function(node3D) {
  this.rootNode.remove(node3D);
};
ViewGL.prototype.removeAll = function(node3D) {
  this.rootNode.removeAll(node3D);
};
Object.assign(ViewGL.prototype, notifier);
function resizeCartesian3D(grid3DModel, api) {
  var boxLayoutOption = grid3DModel.getBoxLayoutParams();
  var viewport = getLayoutRect(boxLayoutOption, {
    width: api.getWidth(),
    height: api.getHeight()
  });
  viewport.y = api.getHeight() - viewport.y - viewport.height;
  this.viewGL.setViewport(viewport.x, viewport.y, viewport.width, viewport.height, api.getDevicePixelRatio());
  var boxWidth = grid3DModel.get("boxWidth");
  var boxHeight = grid3DModel.get("boxHeight");
  var boxDepth = grid3DModel.get("boxDepth");
  this.getAxis("x").setExtent(-boxWidth / 2, boxWidth / 2);
  this.getAxis("y").setExtent(boxDepth / 2, -boxDepth / 2);
  this.getAxis("z").setExtent(-boxHeight / 2, boxHeight / 2);
  this.size = [boxWidth, boxHeight, boxDepth];
}
function updateCartesian3D(ecModel, api) {
  var dataExtents = {};
  function unionDataExtents(dim, extent) {
    dataExtents[dim] = dataExtents[dim] || [Infinity, -Infinity];
    dataExtents[dim][0] = Math.min(extent[0], dataExtents[dim][0]);
    dataExtents[dim][1] = Math.max(extent[1], dataExtents[dim][1]);
  }
  ecModel.eachSeries(function(seriesModel) {
    if (seriesModel.coordinateSystem !== this) {
      return;
    }
    var data = seriesModel.getData();
    ["x", "y", "z"].forEach(function(coordDim) {
      data.mapDimensionsAll(coordDim, true).forEach(function(dataDim) {
        unionDataExtents(coordDim, data.getDataExtent(dataDim, true));
      });
    });
  }, this);
  ["xAxis3D", "yAxis3D", "zAxis3D"].forEach(function(axisType) {
    ecModel.eachComponent(axisType, function(axisModel) {
      var dim = axisType.charAt(0);
      var grid3DModel = axisModel.getReferringComponents("grid3D").models[0];
      var cartesian3D = grid3DModel.coordinateSystem;
      if (cartesian3D !== this) {
        return;
      }
      var axis = cartesian3D.getAxis(dim);
      if (axis) {
        return;
      }
      var scale = createScale(dataExtents[dim] || [Infinity, -Infinity], axisModel);
      axis = new Axis3D(dim, scale);
      axis.type = axisModel.get("type");
      var isCategory = axis.type === "category";
      axis.onBand = isCategory && axisModel.get("boundaryGap");
      axis.inverse = axisModel.get("inverse");
      axisModel.axis = axis;
      axis.model = axisModel;
      axis.getLabelModel = function() {
        return axisModel.getModel("axisLabel", grid3DModel.getModel("axisLabel"));
      };
      axis.getTickModel = function() {
        return axisModel.getModel("axisTick", grid3DModel.getModel("axisTick"));
      };
      cartesian3D.addAxis(axis);
    }, this);
  }, this);
  this.resize(this.model, api);
}
var grid3DCreator = {
  dimensions: Cartesian3D.prototype.dimensions,
  create: function(ecModel, api) {
    var cartesian3DList = [];
    ecModel.eachComponent("grid3D", function(grid3DModel) {
      grid3DModel.__viewGL = grid3DModel.__viewGL || new ViewGL();
      var cartesian3D = new Cartesian3D();
      cartesian3D.model = grid3DModel;
      cartesian3D.viewGL = grid3DModel.__viewGL;
      grid3DModel.coordinateSystem = cartesian3D;
      cartesian3DList.push(cartesian3D);
      cartesian3D.resize = resizeCartesian3D;
      cartesian3D.update = updateCartesian3D;
    });
    var axesTypes = ["xAxis3D", "yAxis3D", "zAxis3D"];
    function findAxesModels(seriesModel, ecModel2) {
      return axesTypes.map(function(axisType) {
        var axisModel = seriesModel.getReferringComponents(axisType).models[0];
        if (axisModel == null) {
          axisModel = ecModel2.getComponent(axisType);
        }
        return axisModel;
      });
    }
    ecModel.eachSeries(function(seriesModel) {
      if (seriesModel.get("coordinateSystem") !== "cartesian3D") {
        return;
      }
      var firstGridModel = seriesModel.getReferringComponents("grid3D").models[0];
      if (firstGridModel == null) {
        var axesModels = findAxesModels(seriesModel, ecModel);
        var firstGridModel = axesModels[0].getCoordSysModel();
        axesModels.forEach(function(axisModel) {
          axisModel.getCoordSysModel();
        });
      }
      var coordSys = firstGridModel.coordinateSystem;
      seriesModel.coordinateSystem = coordSys;
    });
    return cartesian3DList;
  }
};
var Axis3DModel = ComponentModel.extend({
  type: "cartesian3DAxis",
  axis: null,
  /**
   * @override
   */
  getCoordSysModel: function() {
    return this.ecModel.queryComponents({
      mainType: "grid3D",
      index: this.option.gridIndex,
      id: this.option.gridId
    })[0];
  }
});
mixinAxisModelCommonMethods(Axis3DModel);
var defaultOption = {
  show: true,
  grid3DIndex: 0,
  // 反向坐标轴
  inverse: false,
  // 坐标轴名字
  name: "",
  // 坐标轴名字位置
  nameLocation: "middle",
  nameTextStyle: {
    fontSize: 16
  },
  // 文字与轴线距离
  nameGap: 20,
  axisPointer: {},
  axisLine: {},
  // 坐标轴小标记
  axisTick: {},
  axisLabel: {},
  // 分隔区域
  splitArea: {}
};
var categoryAxis = merge({
  // 类目起始和结束两端空白策略
  boundaryGap: true,
  // splitArea: {
  // show: false
  // },
  // 坐标轴小标记
  axisTick: {
    // If tick is align with label when boundaryGap is true
    // Default with axisTick
    alignWithLabel: false,
    interval: "auto"
  },
  // 坐标轴文本标签，详见axis.axisLabel
  axisLabel: {
    interval: "auto"
  },
  axisPointer: {
    label: {
      show: false
    }
  }
}, defaultOption);
var valueAxis = merge({
  // 数值起始和结束两端空白策略
  boundaryGap: [0, 0],
  // 最小值, 设置成 'dataMin' 则从数据中计算最小值
  // min: null,
  // 最大值，设置成 'dataMax' 则从数据中计算最大值
  // max: null,
  // 脱离0值比例，放大聚焦到最终_min，_max区间
  // scale: false,
  // 分割段数，默认为5
  splitNumber: 5,
  // Minimum interval
  // minInterval: null
  axisPointer: {
    label: {}
  }
}, defaultOption);
var timeAxis = defaults({
  scale: true,
  min: "dataMin",
  max: "dataMax"
}, valueAxis);
var logAxis = defaults({
  logBase: 10
}, valueAxis);
logAxis.scale = true;
const axisDefault = {
  categoryAxis3D: categoryAxis,
  valueAxis3D: valueAxis,
  timeAxis3D: timeAxis,
  logAxis3D: logAxis
};
var AXIS_TYPES = ["value", "category", "time", "log"];
function createAxis3DModel(registers, dim, BaseAxisModelClass, axisTypeDefaulter, extraDefaultOption) {
  AXIS_TYPES.forEach(function(axisType) {
    var AxisModel = BaseAxisModelClass.extend({
      type: dim + "Axis3D." + axisType,
      /**
       * @type readOnly
       */
      __ordinalMeta: null,
      mergeDefaultAndTheme: function(option, ecModel) {
        var themeModel = ecModel.getTheme();
        merge(option, themeModel.get(axisType + "Axis3D"));
        merge(option, this.getDefaultOption());
        option.type = axisTypeDefaulter(dim, option);
      },
      /**
       * @override
       */
      optionUpdated: function() {
        var thisOption = this.option;
        if (thisOption.type === "category") {
          this.__ordinalMeta = OrdinalMeta.createByAxisModel(this);
        }
      },
      getCategories: function() {
        if (this.option.type === "category") {
          return this.__ordinalMeta.categories;
        }
      },
      getOrdinalMeta: function() {
        return this.__ordinalMeta;
      },
      defaultOption: merge(clone(axisDefault[axisType + "Axis3D"]), extraDefaultOption || {}, true)
    });
    registers.registerComponentModel(AxisModel);
  });
  registers.registerSubTypeDefaulter(dim + "Axis3D", curry(axisTypeDefaulter, dim));
}
function getAxisType(axisDim, option) {
  return option.type || (option.data ? "category" : "value");
}
function install$f(registers) {
  registers.registerComponentModel(Grid3DModel);
  registers.registerComponentView(Grid3DView);
  registers.registerCoordinateSystem("grid3D", grid3DCreator);
  ["x", "y", "z"].forEach(function(dim) {
    createAxis3DModel(registers, dim, Axis3DModel, getAxisType, {
      name: dim.toUpperCase()
    });
    const AxisView = registers.ComponentView.extend({
      type: dim + "Axis3D"
    });
    registers.registerComponentView(AxisView);
  });
  registers.registerAction({
    type: "grid3DChangeCamera",
    event: "grid3dcamerachanged",
    update: "series:updateCamera"
  }, function(payload, ecModel) {
    ecModel.eachComponent({
      mainType: "grid3D",
      query: payload
    }, function(componentModel) {
      componentModel.setView(payload);
    });
  });
  registers.registerAction({
    type: "grid3DShowAxisPointer",
    event: "grid3dshowaxispointer",
    update: "grid3D:showAxisPointer"
  }, function(payload, ecModel) {
  });
  registers.registerAction({
    type: "grid3DHideAxisPointer",
    event: "grid3dhideaxispointer",
    update: "grid3D:hideAxisPointer"
  }, function(payload, ecModel) {
  });
}
use(install$f);
const componentShadingMixin = {
  defaultOption: {
    shading: null,
    realisticMaterial: {
      textureTiling: 1,
      textureOffset: 0,
      detailTexture: null
    },
    lambertMaterial: {
      textureTiling: 1,
      textureOffset: 0,
      detailTexture: null
    },
    colorMaterial: {
      textureTiling: 1,
      textureOffset: 0,
      detailTexture: null
    },
    hatchingMaterial: {
      textureTiling: 1,
      textureOffset: 0,
      paperColor: "#fff"
    }
  }
};
const geo3DModelMixin = {
  getFilledRegions: function(regions, mapData) {
    var regionsArr = (regions || []).slice();
    var geoJson;
    if (typeof mapData === "string") {
      mapData = getMap(mapData);
      geoJson = mapData && mapData.geoJson;
    } else {
      if (mapData && mapData.features) {
        geoJson = mapData;
      }
    }
    if (!geoJson) {
      return [];
    }
    var dataNameMap = {};
    var features = geoJson.features;
    for (var i = 0; i < regionsArr.length; i++) {
      dataNameMap[regionsArr[i].name] = regionsArr[i];
    }
    for (var i = 0; i < features.length; i++) {
      var name = features[i].properties.name;
      if (!dataNameMap[name]) {
        regionsArr.push({
          name
        });
      }
    }
    return regionsArr;
  },
  defaultOption: {
    show: true,
    zlevel: -10,
    // geoJson used by geo3D
    map: "",
    // Layout used for viewport
    left: 0,
    top: 0,
    width: "100%",
    height: "100%",
    boxWidth: 100,
    boxHeight: 10,
    boxDepth: "auto",
    regionHeight: 3,
    environment: "auto",
    groundPlane: {
      show: false,
      color: "#aaa"
    },
    shading: "lambert",
    light: {
      main: {
        alpha: 40,
        beta: 30
      }
    },
    viewControl: {
      alpha: 40,
      beta: 0,
      distance: 100,
      orthographicSize: 60,
      minAlpha: 5,
      minBeta: -80,
      maxBeta: 80
    },
    label: {
      show: false,
      // Distance in 3d space.
      distance: 2,
      textStyle: {
        fontSize: 20,
        color: "#000",
        backgroundColor: "rgba(255,255,255,0.7)",
        padding: 3,
        borderRadius: 4
      }
    },
    // TODO
    // altitude: {
    //     min: 'auto',
    //     max: 'auto',
    //     height: []
    // },
    // labelLine
    // light
    // postEffect
    // temporalSuperSampling
    itemStyle: {
      color: "#fff",
      borderWidth: 0,
      borderColor: "#333"
    },
    emphasis: {
      itemStyle: {
        // color: '#f94b59'
        color: "#639fc0"
      },
      label: {
        show: true
      }
    }
  }
};
var Geo3DModel = ComponentModel.extend({
  type: "geo3D",
  layoutMode: "box",
  coordinateSystem: null,
  optionUpdated: function() {
    var option = this.option;
    option.regions = this.getFilledRegions(option.regions, option.map);
    var dimensions = createDimensions(option.data || [], {
      coordDimensions: ["value"],
      encodeDefine: this.get("encode"),
      dimensionsDefine: this.get("dimensions")
    });
    var list = new SeriesData(dimensions, this);
    list.initData(option.regions);
    var regionModelMap = {};
    list.each(function(idx) {
      var name = list.getName(idx);
      var itemModel = list.getItemModel(idx);
      regionModelMap[name] = itemModel;
    });
    this._regionModelMap = regionModelMap;
    this._data = list;
  },
  getData: function() {
    return this._data;
  },
  getRegionModel: function(idx) {
    var name = this.getData().getName(idx);
    return this._regionModelMap[name] || new Model(null, this);
  },
  getRegionPolygonCoords: function(idx) {
    var name = this.getData().getName(idx);
    var region = this.coordinateSystem.getRegion(name);
    return region ? region.geometries : [];
  },
  /**
   * Format label
   * @param {string} name Region name
   * @param {string} [status='normal'] 'normal' or 'emphasis'
   * @return {string}
   */
  getFormattedLabel: function(dataIndex, status) {
    var name = this._data.getName(dataIndex);
    var regionModel = this.getRegionModel(dataIndex);
    var formatter = regionModel.get(status === "normal" ? ["label", "formatter"] : ["emphasis", "label", "formatter"]);
    if (formatter == null) {
      formatter = regionModel.get(["label", "formatter"]);
    }
    var params = {
      name
    };
    if (typeof formatter === "function") {
      params.status = status;
      return formatter(params);
    } else if (typeof formatter === "string") {
      var serName = params.seriesName;
      return formatter.replace("{a}", serName != null ? serName : "");
    } else {
      return name;
    }
  },
  defaultOption: {
    // itemStyle: {},
    // height,
    // label: {}
    // realisticMaterial
    regions: []
  }
});
merge(Geo3DModel.prototype, geo3DModelMixin);
merge(Geo3DModel.prototype, componentViewControlMixin);
merge(Geo3DModel.prototype, componentPostEffectMixin);
merge(Geo3DModel.prototype, componentLightMixin);
merge(Geo3DModel.prototype, componentShadingMixin);
function earcut(data, holeIndices, dim) {
  dim = dim || 2;
  var hasHoles = holeIndices && holeIndices.length, outerLen = hasHoles ? holeIndices[0] * dim : data.length, outerNode = linkedList(data, 0, outerLen, dim, true), triangles = [];
  if (!outerNode) return triangles;
  var minX, minY, maxX, maxY, x, y, size;
  if (hasHoles) outerNode = eliminateHoles(data, holeIndices, outerNode, dim);
  if (data.length > 80 * dim) {
    minX = maxX = data[0];
    minY = maxY = data[1];
    for (var i = dim; i < outerLen; i += dim) {
      x = data[i];
      y = data[i + 1];
      if (x < minX) minX = x;
      if (y < minY) minY = y;
      if (x > maxX) maxX = x;
      if (y > maxY) maxY = y;
    }
    size = Math.max(maxX - minX, maxY - minY);
  }
  earcutLinked(outerNode, triangles, dim, minX, minY, size);
  return triangles;
}
function linkedList(data, start, end, dim, clockwise) {
  var i, last;
  if (clockwise === signedArea(data, start, end, dim) > 0) {
    for (i = start; i < end; i += dim) last = insertNode(i, data[i], data[i + 1], last);
  } else {
    for (i = end - dim; i >= start; i -= dim) last = insertNode(i, data[i], data[i + 1], last);
  }
  if (last && equals(last, last.next)) {
    removeNode(last);
    last = last.next;
  }
  return last;
}
function filterPoints(start, end) {
  if (!start) return start;
  if (!end) end = start;
  var p = start, again;
  do {
    again = false;
    if (!p.steiner && (equals(p, p.next) || area(p.prev, p, p.next) === 0)) {
      removeNode(p);
      p = end = p.prev;
      if (p === p.next) return null;
      again = true;
    } else {
      p = p.next;
    }
  } while (again || p !== end);
  return end;
}
function earcutLinked(ear, triangles, dim, minX, minY, size, pass) {
  if (!ear) return;
  if (!pass && size) indexCurve(ear, minX, minY, size);
  var stop = ear, prev, next;
  while (ear.prev !== ear.next) {
    prev = ear.prev;
    next = ear.next;
    if (size ? isEarHashed(ear, minX, minY, size) : isEar(ear)) {
      triangles.push(prev.i / dim);
      triangles.push(ear.i / dim);
      triangles.push(next.i / dim);
      removeNode(ear);
      ear = next.next;
      stop = next.next;
      continue;
    }
    ear = next;
    if (ear === stop) {
      if (!pass) {
        earcutLinked(filterPoints(ear), triangles, dim, minX, minY, size, 1);
      } else if (pass === 1) {
        ear = cureLocalIntersections(ear, triangles, dim);
        earcutLinked(ear, triangles, dim, minX, minY, size, 2);
      } else if (pass === 2) {
        splitEarcut(ear, triangles, dim, minX, minY, size);
      }
      break;
    }
  }
}
function isEar(ear) {
  var a = ear.prev, b = ear, c = ear.next;
  if (area(a, b, c) >= 0) return false;
  var p = ear.next.next;
  while (p !== ear.prev) {
    if (pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) && area(p.prev, p, p.next) >= 0) return false;
    p = p.next;
  }
  return true;
}
function isEarHashed(ear, minX, minY, size) {
  var a = ear.prev, b = ear, c = ear.next;
  if (area(a, b, c) >= 0) return false;
  var minTX = a.x < b.x ? a.x < c.x ? a.x : c.x : b.x < c.x ? b.x : c.x, minTY = a.y < b.y ? a.y < c.y ? a.y : c.y : b.y < c.y ? b.y : c.y, maxTX = a.x > b.x ? a.x > c.x ? a.x : c.x : b.x > c.x ? b.x : c.x, maxTY = a.y > b.y ? a.y > c.y ? a.y : c.y : b.y > c.y ? b.y : c.y;
  var minZ = zOrder(minTX, minTY, minX, minY, size), maxZ = zOrder(maxTX, maxTY, minX, minY, size);
  var p = ear.nextZ;
  while (p && p.z <= maxZ) {
    if (p !== ear.prev && p !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) && area(p.prev, p, p.next) >= 0) return false;
    p = p.nextZ;
  }
  p = ear.prevZ;
  while (p && p.z >= minZ) {
    if (p !== ear.prev && p !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) && area(p.prev, p, p.next) >= 0) return false;
    p = p.prevZ;
  }
  return true;
}
function cureLocalIntersections(start, triangles, dim) {
  var p = start;
  do {
    var a = p.prev, b = p.next.next;
    if (!equals(a, b) && intersects(a, p, p.next, b) && locallyInside(a, b) && locallyInside(b, a)) {
      triangles.push(a.i / dim);
      triangles.push(p.i / dim);
      triangles.push(b.i / dim);
      removeNode(p);
      removeNode(p.next);
      p = start = b;
    }
    p = p.next;
  } while (p !== start);
  return p;
}
function splitEarcut(start, triangles, dim, minX, minY, size) {
  var a = start;
  do {
    var b = a.next.next;
    while (b !== a.prev) {
      if (a.i !== b.i && isValidDiagonal(a, b)) {
        var c = splitPolygon(a, b);
        a = filterPoints(a, a.next);
        c = filterPoints(c, c.next);
        earcutLinked(a, triangles, dim, minX, minY, size);
        earcutLinked(c, triangles, dim, minX, minY, size);
        return;
      }
      b = b.next;
    }
    a = a.next;
  } while (a !== start);
}
function eliminateHoles(data, holeIndices, outerNode, dim) {
  var queue = [], i, len, start, end, list;
  for (i = 0, len = holeIndices.length; i < len; i++) {
    start = holeIndices[i] * dim;
    end = i < len - 1 ? holeIndices[i + 1] * dim : data.length;
    list = linkedList(data, start, end, dim, false);
    if (list === list.next) list.steiner = true;
    queue.push(getLeftmost(list));
  }
  queue.sort(compareX);
  for (i = 0; i < queue.length; i++) {
    eliminateHole(queue[i], outerNode);
    outerNode = filterPoints(outerNode, outerNode.next);
  }
  return outerNode;
}
function compareX(a, b) {
  return a.x - b.x;
}
function eliminateHole(hole, outerNode) {
  outerNode = findHoleBridge(hole, outerNode);
  if (outerNode) {
    var b = splitPolygon(outerNode, hole);
    filterPoints(b, b.next);
  }
}
function findHoleBridge(hole, outerNode) {
  var p = outerNode, hx = hole.x, hy = hole.y, qx = -Infinity, m;
  do {
    if (hy <= p.y && hy >= p.next.y && p.next.y !== p.y) {
      var x = p.x + (hy - p.y) * (p.next.x - p.x) / (p.next.y - p.y);
      if (x <= hx && x > qx) {
        qx = x;
        if (x === hx) {
          if (hy === p.y) return p;
          if (hy === p.next.y) return p.next;
        }
        m = p.x < p.next.x ? p : p.next;
      }
    }
    p = p.next;
  } while (p !== outerNode);
  if (!m) return null;
  if (hx === qx) return m.prev;
  var stop = m, mx = m.x, my = m.y, tanMin = Infinity, tan2;
  p = m.next;
  while (p !== stop) {
    if (hx >= p.x && p.x >= mx && hx !== p.x && pointInTriangle(hy < my ? hx : qx, hy, mx, my, hy < my ? qx : hx, hy, p.x, p.y)) {
      tan2 = Math.abs(hy - p.y) / (hx - p.x);
      if ((tan2 < tanMin || tan2 === tanMin && p.x > m.x) && locallyInside(p, hole)) {
        m = p;
        tanMin = tan2;
      }
    }
    p = p.next;
  }
  return m;
}
function indexCurve(start, minX, minY, size) {
  var p = start;
  do {
    if (p.z === null) p.z = zOrder(p.x, p.y, minX, minY, size);
    p.prevZ = p.prev;
    p.nextZ = p.next;
    p = p.next;
  } while (p !== start);
  p.prevZ.nextZ = null;
  p.prevZ = null;
  sortLinked(p);
}
function sortLinked(list) {
  var i, p, q, e2, tail, numMerges, pSize, qSize, inSize = 1;
  do {
    p = list;
    list = null;
    tail = null;
    numMerges = 0;
    while (p) {
      numMerges++;
      q = p;
      pSize = 0;
      for (i = 0; i < inSize; i++) {
        pSize++;
        q = q.nextZ;
        if (!q) break;
      }
      qSize = inSize;
      while (pSize > 0 || qSize > 0 && q) {
        if (pSize !== 0 && (qSize === 0 || !q || p.z <= q.z)) {
          e2 = p;
          p = p.nextZ;
          pSize--;
        } else {
          e2 = q;
          q = q.nextZ;
          qSize--;
        }
        if (tail) tail.nextZ = e2;
        else list = e2;
        e2.prevZ = tail;
        tail = e2;
      }
      p = q;
    }
    tail.nextZ = null;
    inSize *= 2;
  } while (numMerges > 1);
  return list;
}
function zOrder(x, y, minX, minY, size) {
  x = 32767 * (x - minX) / size;
  y = 32767 * (y - minY) / size;
  x = (x | x << 8) & 16711935;
  x = (x | x << 4) & 252645135;
  x = (x | x << 2) & 858993459;
  x = (x | x << 1) & 1431655765;
  y = (y | y << 8) & 16711935;
  y = (y | y << 4) & 252645135;
  y = (y | y << 2) & 858993459;
  y = (y | y << 1) & 1431655765;
  return x | y << 1;
}
function getLeftmost(start) {
  var p = start, leftmost = start;
  do {
    if (p.x < leftmost.x) leftmost = p;
    p = p.next;
  } while (p !== start);
  return leftmost;
}
function pointInTriangle(ax, ay, bx, by, cx, cy, px, py) {
  return (cx - px) * (ay - py) - (ax - px) * (cy - py) >= 0 && (ax - px) * (by - py) - (bx - px) * (ay - py) >= 0 && (bx - px) * (cy - py) - (cx - px) * (by - py) >= 0;
}
function isValidDiagonal(a, b) {
  return a.next.i !== b.i && a.prev.i !== b.i && !intersectsPolygon(a, b) && locallyInside(a, b) && locallyInside(b, a) && middleInside(a, b);
}
function area(p, q, r) {
  return (q.y - p.y) * (r.x - q.x) - (q.x - p.x) * (r.y - q.y);
}
function equals(p12, p22) {
  return p12.x === p22.x && p12.y === p22.y;
}
function intersects(p12, q1, p22, q2) {
  if (equals(p12, q1) && equals(p22, q2) || equals(p12, q2) && equals(p22, q1)) return true;
  return area(p12, q1, p22) > 0 !== area(p12, q1, q2) > 0 && area(p22, q2, p12) > 0 !== area(p22, q2, q1) > 0;
}
function intersectsPolygon(a, b) {
  var p = a;
  do {
    if (p.i !== a.i && p.next.i !== a.i && p.i !== b.i && p.next.i !== b.i && intersects(p, p.next, a, b)) return true;
    p = p.next;
  } while (p !== a);
  return false;
}
function locallyInside(a, b) {
  return area(a.prev, a, a.next) < 0 ? area(a, b, a.next) >= 0 && area(a, a.prev, b) >= 0 : area(a, b, a.prev) < 0 || area(a, a.next, b) < 0;
}
function middleInside(a, b) {
  var p = a, inside = false, px = (a.x + b.x) / 2, py = (a.y + b.y) / 2;
  do {
    if (p.y > py !== p.next.y > py && p.next.y !== p.y && px < (p.next.x - p.x) * (py - p.y) / (p.next.y - p.y) + p.x) inside = !inside;
    p = p.next;
  } while (p !== a);
  return inside;
}
function splitPolygon(a, b) {
  var a2 = new Node(a.i, a.x, a.y), b2 = new Node(b.i, b.x, b.y), an = a.next, bp = b.prev;
  a.next = b;
  b.prev = a;
  a2.next = an;
  an.prev = a2;
  b2.next = a2;
  a2.prev = b2;
  bp.next = b2;
  b2.prev = bp;
  return b2;
}
function insertNode(i, x, y, last) {
  var p = new Node(i, x, y);
  if (!last) {
    p.prev = p;
    p.next = p;
  } else {
    p.next = last.next;
    p.prev = last;
    last.next.prev = p;
    last.next = p;
  }
  return p;
}
function removeNode(p) {
  p.next.prev = p.prev;
  p.prev.next = p.next;
  if (p.prevZ) p.prevZ.nextZ = p.nextZ;
  if (p.nextZ) p.nextZ.prevZ = p.prevZ;
}
function Node(i, x, y) {
  this.i = i;
  this.x = x;
  this.y = y;
  this.prev = null;
  this.next = null;
  this.z = null;
  this.prevZ = null;
  this.nextZ = null;
  this.steiner = false;
}
earcut.deviation = function(data, holeIndices, dim, triangles) {
  var hasHoles = holeIndices && holeIndices.length;
  var outerLen = hasHoles ? holeIndices[0] * dim : data.length;
  var polygonArea = Math.abs(signedArea(data, 0, outerLen, dim));
  if (hasHoles) {
    for (var i = 0, len = holeIndices.length; i < len; i++) {
      var start = holeIndices[i] * dim;
      var end = i < len - 1 ? holeIndices[i + 1] * dim : data.length;
      polygonArea -= Math.abs(signedArea(data, start, end, dim));
    }
  }
  var trianglesArea = 0;
  for (i = 0; i < triangles.length; i += 3) {
    var a = triangles[i] * dim;
    var b = triangles[i + 1] * dim;
    var c = triangles[i + 2] * dim;
    trianglesArea += Math.abs((data[a] - data[c]) * (data[b + 1] - data[a + 1]) - (data[a] - data[b]) * (data[c + 1] - data[a + 1]));
  }
  return polygonArea === 0 && trianglesArea === 0 ? 0 : Math.abs((trianglesArea - polygonArea) / polygonArea);
};
function signedArea(data, start, end, dim) {
  var sum = 0;
  for (var i = start, j = end - dim; i < end; i += dim) {
    sum += (data[j] - data[i]) * (data[i + 1] + data[j + 1]);
    j = i;
  }
  return sum;
}
function swap(arr, a, b) {
  var tmp = arr[a];
  arr[a] = arr[b];
  arr[b] = tmp;
}
function partition(arr, pivot, left, right, compare) {
  var storeIndex = left;
  var pivotValue = arr[pivot];
  swap(arr, pivot, right);
  for (var v = left; v < right; v++) {
    if (compare(arr[v], pivotValue) < 0) {
      swap(arr, v, storeIndex);
      storeIndex++;
    }
  }
  swap(arr, right, storeIndex);
  return storeIndex;
}
function quickSort(array, compare, left, right) {
  if (left < right) {
    var pivot = Math.floor((left + right) / 2);
    var newPivot = partition(array, pivot, left, right, compare);
    quickSort(array, compare, left, newPivot - 1);
    quickSort(array, compare, newPivot + 1, right);
  }
}
function ProgressiveQuickSort() {
  this._parts = [];
}
ProgressiveQuickSort.prototype.step = function(arr, compare, frame) {
  var len = arr.length;
  if (frame === 0) {
    this._parts = [];
    this._sorted = false;
    var pivot = Math.floor(len / 2);
    this._parts.push({
      pivot,
      left: 0,
      right: len - 1
    });
    this._currentSortPartIdx = 0;
  }
  if (this._sorted) {
    return;
  }
  var parts = this._parts;
  if (parts.length === 0) {
    this._sorted = true;
    return true;
  } else if (parts.length < 512) {
    for (var i = 0; i < parts.length; i++) {
      parts[i].pivot = partition(arr, parts[i].pivot, parts[i].left, parts[i].right, compare);
    }
    var subdividedParts = [];
    for (var i = 0; i < parts.length; i++) {
      var left = parts[i].left;
      var right = parts[i].pivot - 1;
      if (right > left) {
        subdividedParts.push({
          pivot: Math.floor((right + left) / 2),
          left,
          right
        });
      }
      var left = parts[i].pivot + 1;
      var right = parts[i].right;
      if (right > left) {
        subdividedParts.push({
          pivot: Math.floor((right + left) / 2),
          left,
          right
        });
      }
    }
    parts = this._parts = subdividedParts;
  } else {
    for (var i = 0; i < Math.floor(parts.length / 10); i++) {
      var idx = parts.length - 1 - this._currentSortPartIdx;
      quickSort(arr, compare, parts[idx].left, parts[idx].right);
      this._currentSortPartIdx++;
      if (this._currentSortPartIdx === parts.length) {
        this._sorted = true;
        return true;
      }
    }
  }
  return false;
};
ProgressiveQuickSort.sort = quickSort;
var vec3$c = glmatrix.vec3;
var p0 = vec3$c.create();
var p1 = vec3$c.create();
var p2 = vec3$c.create();
const trianglesSortMixin = {
  needsSortTriangles: function() {
    return this.indices && this.sortTriangles;
  },
  needsSortTrianglesProgressively: function() {
    return this.needsSortTriangles() && this.triangleCount >= 2e4;
  },
  doSortTriangles: function(cameraPos, frame) {
    var indices = this.indices;
    if (frame === 0) {
      var posAttr = this.attributes.position;
      var cameraPos = cameraPos.array;
      if (!this._triangleZList || this._triangleZList.length !== this.triangleCount) {
        this._triangleZList = new Float32Array(this.triangleCount);
        this._sortedTriangleIndices = new Uint32Array(this.triangleCount);
        this._indicesTmp = new indices.constructor(indices.length);
        this._triangleZListTmp = new Float32Array(this.triangleCount);
      }
      var cursor = 0;
      var firstZ;
      for (var i = 0; i < indices.length; ) {
        posAttr.get(indices[i++], p0);
        posAttr.get(indices[i++], p1);
        posAttr.get(indices[i++], p2);
        var z0 = vec3$c.sqrDist(p0, cameraPos);
        var z1 = vec3$c.sqrDist(p1, cameraPos);
        var z2 = vec3$c.sqrDist(p2, cameraPos);
        var zMax = Math.min(z0, z1);
        zMax = Math.min(zMax, z2);
        if (i === 3) {
          firstZ = zMax;
          zMax = 0;
        } else {
          zMax = zMax - firstZ;
        }
        this._triangleZList[cursor++] = zMax;
      }
    }
    var sortedTriangleIndices = this._sortedTriangleIndices;
    for (var i = 0; i < sortedTriangleIndices.length; i++) {
      sortedTriangleIndices[i] = i;
    }
    if (this.triangleCount < 2e4) {
      if (frame === 0) {
        this._simpleSort(true);
      }
    } else {
      for (var i = 0; i < 3; i++) {
        this._progressiveQuickSort(frame * 3 + i);
      }
    }
    var targetIndices = this._indicesTmp;
    var targetTriangleZList = this._triangleZListTmp;
    var faceZList = this._triangleZList;
    for (var i = 0; i < this.triangleCount; i++) {
      var fromIdx3 = sortedTriangleIndices[i] * 3;
      var toIdx3 = i * 3;
      targetIndices[toIdx3++] = indices[fromIdx3++];
      targetIndices[toIdx3++] = indices[fromIdx3++];
      targetIndices[toIdx3] = indices[fromIdx3];
      targetTriangleZList[i] = faceZList[sortedTriangleIndices[i]];
    }
    var tmp = this._indicesTmp;
    this._indicesTmp = this.indices;
    this.indices = tmp;
    var tmp = this._triangleZListTmp;
    this._triangleZListTmp = this._triangleZList;
    this._triangleZList = tmp;
    this.dirtyIndices();
  },
  _simpleSort: function(useNativeQuickSort) {
    var faceZList = this._triangleZList;
    var sortedTriangleIndices = this._sortedTriangleIndices;
    function compare(a, b) {
      return faceZList[b] - faceZList[a];
    }
    if (useNativeQuickSort) {
      Array.prototype.sort.call(sortedTriangleIndices, compare);
    } else {
      ProgressiveQuickSort.sort(sortedTriangleIndices, compare, 0, sortedTriangleIndices.length - 1);
    }
  },
  _progressiveQuickSort: function(frame) {
    var faceZList = this._triangleZList;
    var sortedTriangleIndices = this._sortedTriangleIndices;
    this._quickSort = this._quickSort || new ProgressiveQuickSort();
    this._quickSort.step(sortedTriangleIndices, function(a, b) {
      return faceZList[b] - faceZList[a];
    }, frame);
  }
};
function getVisualColor(data) {
  const style = data.getVisual("style");
  if (style) {
    const drawType = data.getVisual("drawType");
    return style[drawType];
  }
}
function getVisualOpacity(data) {
  const style = data.getVisual("style");
  return style.opacity;
}
function getItemVisualColor(data, idx) {
  const style = data.getItemVisual(idx, "style");
  if (style) {
    const drawType = data.getVisual("drawType");
    return style[drawType];
  }
}
function getItemVisualOpacity(data, idx) {
  const style = data.getItemVisual(idx, "style");
  return style && style.opacity;
}
var LABEL_NORMAL_SHOW_BIT = 1;
var LABEL_EMPHASIS_SHOW_BIT = 2;
function LabelsBuilder(width, height, api) {
  this._labelsMesh = new LabelsMesh();
  this._labelTextureSurface = new ZRTextureAtlasSurface({
    width: 512,
    height: 512,
    devicePixelRatio: api.getDevicePixelRatio(),
    onupdate: function() {
      api.getZr().refresh();
    }
  });
  this._api = api;
  this._labelsMesh.material.set("textureAtlas", this._labelTextureSurface.getTexture());
}
LabelsBuilder.prototype.getLabelPosition = function(dataIndex, positionDesc, distance) {
  return [0, 0, 0];
};
LabelsBuilder.prototype.getLabelDistance = function(dataIndex, positionDesc, distance) {
  return 0;
};
LabelsBuilder.prototype.getMesh = function() {
  return this._labelsMesh;
};
LabelsBuilder.prototype.updateData = function(data, start, end) {
  if (start == null) {
    start = 0;
  }
  if (end == null) {
    end = data.count();
  }
  if (!this._labelsVisibilitiesBits || this._labelsVisibilitiesBits.length !== end - start) {
    this._labelsVisibilitiesBits = new Uint8Array(end - start);
  }
  var normalLabelVisibilityQuery = ["label", "show"];
  var emphasisLabelVisibilityQuery = ["emphasis", "label", "show"];
  for (var idx = start; idx < end; idx++) {
    var itemModel = data.getItemModel(idx);
    var normalVisibility = itemModel.get(normalLabelVisibilityQuery);
    var emphasisVisibility = itemModel.get(emphasisLabelVisibilityQuery);
    if (emphasisVisibility == null) {
      emphasisVisibility = normalVisibility;
    }
    var bit = (normalVisibility ? LABEL_NORMAL_SHOW_BIT : 0) | (emphasisVisibility ? LABEL_EMPHASIS_SHOW_BIT : 0);
    this._labelsVisibilitiesBits[idx - start] = bit;
  }
  this._start = start;
  this._end = end;
  this._data = data;
};
LabelsBuilder.prototype.updateLabels = function(highlightDataIndices) {
  if (!this._data) {
    return;
  }
  highlightDataIndices = highlightDataIndices || [];
  var hasHighlightData = highlightDataIndices.length > 0;
  var highlightDataIndicesMap = {};
  for (var i = 0; i < highlightDataIndices.length; i++) {
    highlightDataIndicesMap[highlightDataIndices[i]] = true;
  }
  this._labelsMesh.geometry.convertToDynamicArray(true);
  this._labelTextureSurface.clear();
  var normalLabelQuery = ["label"];
  var emphasisLabelQuery = ["emphasis", "label"];
  var seriesModel = this._data.hostModel;
  var data = this._data;
  var seriesLabelModel = seriesModel.getModel(normalLabelQuery);
  var seriesLabelEmphasisModel = seriesModel.getModel(emphasisLabelQuery, seriesLabelModel);
  var textAlignMap = {
    left: "right",
    right: "left",
    top: "center",
    bottom: "center"
  };
  var textVerticalAlignMap = {
    left: "middle",
    right: "middle",
    top: "bottom",
    bottom: "top"
  };
  for (var dataIndex = this._start; dataIndex < this._end; dataIndex++) {
    var isEmphasis = false;
    if (hasHighlightData && highlightDataIndicesMap[dataIndex]) {
      isEmphasis = true;
    }
    var ifShow = this._labelsVisibilitiesBits[dataIndex - this._start] & (isEmphasis ? LABEL_EMPHASIS_SHOW_BIT : LABEL_NORMAL_SHOW_BIT);
    if (!ifShow) {
      continue;
    }
    var itemModel = data.getItemModel(dataIndex);
    var labelModel = itemModel.getModel(isEmphasis ? emphasisLabelQuery : normalLabelQuery, isEmphasis ? seriesLabelEmphasisModel : seriesLabelModel);
    var distance = labelModel.get("distance") || 0;
    var position = labelModel.get("position");
    var dpr = this._api.getDevicePixelRatio();
    var text = seriesModel.getFormattedLabel(dataIndex, isEmphasis ? "emphasis" : "normal");
    if (text == null || text === "") {
      return;
    }
    var textEl = new ZRText({
      style: createTextStyle(labelModel, {
        text,
        fill: labelModel.get("color") || getItemVisualColor(data, dataIndex) || "#000",
        align: "left",
        verticalAlign: "top",
        opacity: retrieve.firstNotNull(labelModel.get("opacity"), getItemVisualOpacity(data, dataIndex), 1)
      })
    });
    var rect = textEl.getBoundingRect();
    var lineHeight = 1.2;
    rect.height *= lineHeight;
    var coords = this._labelTextureSurface.add(textEl);
    var textAlign = textAlignMap[position] || "center";
    var textVerticalAlign = textVerticalAlignMap[position] || "bottom";
    this._labelsMesh.geometry.addSprite(this.getLabelPosition(dataIndex, position, distance), [rect.width * dpr, rect.height * dpr], coords, textAlign, textVerticalAlign, this.getLabelDistance(dataIndex, position, distance) * dpr);
  }
  this._labelsMesh.material.set("uvScale", this._labelTextureSurface.getCoordsScale());
  this._labelTextureSurface.getZr().refreshImmediately();
  this._labelsMesh.geometry.convertToTypedArray();
  this._labelsMesh.geometry.dirty();
};
LabelsBuilder.prototype.dispose = function() {
  this._labelTextureSurface.dispose();
};
var vec3$b = glmatrix.vec3;
graphicGL.Shader.import(lines3DGLSL);
function Geo3DBuilder(api) {
  this.rootNode = new graphicGL.Node();
  this._triangulationResults = {};
  this._shadersMap = graphicGL.COMMON_SHADERS.filter(function(shaderName) {
    return shaderName !== "shadow";
  }).reduce(function(obj, shaderName) {
    obj[shaderName] = graphicGL.createShader("ecgl." + shaderName);
    return obj;
  }, {});
  this._linesShader = graphicGL.createShader("ecgl.meshLines3D");
  var groundMaterials = {};
  graphicGL.COMMON_SHADERS.forEach(function(shading) {
    groundMaterials[shading] = new graphicGL.Material({
      shader: graphicGL.createShader("ecgl." + shading)
    });
  });
  this._groundMaterials = groundMaterials;
  this._groundMesh = new graphicGL.Mesh({
    geometry: new graphicGL.PlaneGeometry({
      dynamic: true
    }),
    castShadow: false,
    renderNormal: true,
    $ignorePicking: true
  });
  this._groundMesh.rotation.rotateX(-Math.PI / 2);
  this._labelsBuilder = new LabelsBuilder(512, 512, api);
  this._labelsBuilder.getMesh().renderOrder = 100;
  this._labelsBuilder.getMesh().material.depthTest = false;
  this.rootNode.add(this._labelsBuilder.getMesh());
  this._initMeshes();
  this._api = api;
}
Geo3DBuilder.prototype = {
  constructor: Geo3DBuilder,
  // Which dimension to extrude. Y or Z
  extrudeY: true,
  update: function(componentModel, ecModel, api, start, end) {
    var data = componentModel.getData();
    if (start == null) {
      start = 0;
    }
    if (end == null) {
      end = data.count();
    }
    this._startIndex = start;
    this._endIndex = end - 1;
    this._triangulation(componentModel, start, end);
    var shader = this._getShader(componentModel.get("shading"));
    this._prepareMesh(componentModel, shader, api, start, end);
    this.rootNode.updateWorldTransform();
    this._updateRegionMesh(componentModel, api, start, end);
    var coordSys = componentModel.coordinateSystem;
    if (coordSys.type === "geo3D") {
      this._updateGroundPlane(componentModel, coordSys, api);
    }
    var self2 = this;
    this._labelsBuilder.updateData(data, start, end);
    this._labelsBuilder.getLabelPosition = function(dataIndex, positionDesc, distance) {
      var name = data.getName(dataIndex);
      var center;
      var height = distance;
      if (coordSys.type === "geo3D") {
        var region = coordSys.getRegion(name);
        if (!region) {
          return [NaN, NaN, NaN];
        }
        center = region.getCenter();
        var pos = coordSys.dataToPoint([center[0], center[1], height]);
        return pos;
      } else {
        var tmp = self2._triangulationResults[dataIndex - self2._startIndex];
        var center = self2.extrudeY ? [(tmp.max[0] + tmp.min[0]) / 2, tmp.max[1] + height, (tmp.max[2] + tmp.min[2]) / 2] : [(tmp.max[0] + tmp.min[0]) / 2, (tmp.max[1] + tmp.min[1]) / 2, tmp.max[2] + height];
      }
    };
    this._data = data;
    this._labelsBuilder.updateLabels();
    this._updateDebugWireframe(componentModel);
    this._lastHoverDataIndex = 0;
  },
  _initMeshes: function() {
    var self2 = this;
    function createPolygonMesh() {
      var mesh2 = new graphicGL.Mesh({
        name: "Polygon",
        material: new graphicGL.Material({
          shader: self2._shadersMap.lambert
        }),
        geometry: new graphicGL.Geometry({
          sortTriangles: true,
          dynamic: true
        }),
        // TODO Disable culling
        culling: false,
        ignorePicking: true,
        // Render normal in normal pass
        renderNormal: true
      });
      Object.assign(mesh2.geometry, trianglesSortMixin);
      return mesh2;
    }
    var polygonMesh = createPolygonMesh();
    var linesMesh = new graphicGL.Mesh({
      material: new graphicGL.Material({
        shader: this._linesShader
      }),
      castShadow: false,
      ignorePicking: true,
      $ignorePicking: true,
      geometry: new LinesGeometry$2({
        useNativeLine: false
      })
    });
    this.rootNode.add(polygonMesh);
    this.rootNode.add(linesMesh);
    polygonMesh.material.define("both", "VERTEX_COLOR");
    polygonMesh.material.define("fragment", "DOUBLE_SIDED");
    this._polygonMesh = polygonMesh;
    this._linesMesh = linesMesh;
    this.rootNode.add(this._groundMesh);
  },
  _getShader: function(shading) {
    var shader = this._shadersMap[shading];
    if (!shader) {
      shader = this._shadersMap.lambert;
    }
    shader.__shading = shading;
    return shader;
  },
  _prepareMesh: function(componentModel, shader, api, start, end) {
    var polygonVertexCount = 0;
    var polygonTriangleCount = 0;
    var linesVertexCount = 0;
    var linesTriangleCount = 0;
    for (var idx = start; idx < end; idx++) {
      var polyInfo = this._getRegionPolygonInfo(idx);
      var lineInfo = this._getRegionLinesInfo(idx, componentModel, this._linesMesh.geometry);
      polygonVertexCount += polyInfo.vertexCount;
      polygonTriangleCount += polyInfo.triangleCount;
      linesVertexCount += lineInfo.vertexCount;
      linesTriangleCount += lineInfo.triangleCount;
    }
    var polygonMesh = this._polygonMesh;
    var polygonGeo = polygonMesh.geometry;
    ["position", "normal", "texcoord0", "color"].forEach(function(attrName) {
      polygonGeo.attributes[attrName].init(polygonVertexCount);
    });
    polygonGeo.indices = polygonVertexCount > 65535 ? new Uint32Array(polygonTriangleCount * 3) : new Uint16Array(polygonTriangleCount * 3);
    if (polygonMesh.material.shader !== shader) {
      polygonMesh.material.attachShader(shader, true);
    }
    graphicGL.setMaterialFromModel(shader.__shading, polygonMesh.material, componentModel, api);
    if (linesVertexCount > 0) {
      this._linesMesh.geometry.resetOffset();
      this._linesMesh.geometry.setVertexCount(linesVertexCount);
      this._linesMesh.geometry.setTriangleCount(linesTriangleCount);
    }
    this._dataIndexOfVertex = new Uint32Array(polygonVertexCount);
    this._vertexRangeOfDataIndex = new Uint32Array((end - start) * 2);
  },
  _updateRegionMesh: function(componentModel, api, start, end) {
    var data = componentModel.getData();
    var vertexOffset = 0;
    var triangleOffset = 0;
    var hasTranparentRegion = false;
    var polygonMesh = this._polygonMesh;
    var linesMesh = this._linesMesh;
    for (var dataIndex = start; dataIndex < end; dataIndex++) {
      var regionModel = componentModel.getRegionModel(dataIndex);
      var itemStyleModel = regionModel.getModel("itemStyle");
      var color = retrieve.firstNotNull(getItemVisualColor(data, dataIndex), itemStyleModel.get("color"), "#fff");
      var opacity = retrieve.firstNotNull(getItemVisualOpacity(data, dataIndex), itemStyleModel.get("opacity"), 1);
      var colorArr = graphicGL.parseColor(color);
      var borderColorArr = graphicGL.parseColor(itemStyleModel.get("borderColor"));
      colorArr[3] *= opacity;
      borderColorArr[3] *= opacity;
      var isTransparent = colorArr[3] < 0.99;
      polygonMesh.material.set("color", [1, 1, 1, 1]);
      hasTranparentRegion = hasTranparentRegion || isTransparent;
      var regionHeight = retrieve.firstNotNull(regionModel.get("height", true), componentModel.get("regionHeight"));
      var newOffsets = this._updatePolygonGeometry(componentModel, polygonMesh.geometry, dataIndex, regionHeight, vertexOffset, triangleOffset, colorArr);
      for (var i = vertexOffset; i < newOffsets.vertexOffset; i++) {
        this._dataIndexOfVertex[i] = dataIndex;
      }
      this._vertexRangeOfDataIndex[(dataIndex - start) * 2] = vertexOffset;
      this._vertexRangeOfDataIndex[(dataIndex - start) * 2 + 1] = newOffsets.vertexOffset;
      vertexOffset = newOffsets.vertexOffset;
      triangleOffset = newOffsets.triangleOffset;
      var lineWidth = itemStyleModel.get("borderWidth");
      var hasLine = lineWidth > 0;
      if (hasLine) {
        lineWidth *= api.getDevicePixelRatio();
        this._updateLinesGeometry(linesMesh.geometry, componentModel, dataIndex, regionHeight, lineWidth, componentModel.coordinateSystem.transform);
      }
      linesMesh.invisible = !hasLine;
      linesMesh.material.set({
        color: borderColorArr
      });
    }
    var polygonMesh = this._polygonMesh;
    polygonMesh.material.transparent = hasTranparentRegion;
    polygonMesh.material.depthMask = !hasTranparentRegion;
    polygonMesh.geometry.updateBoundingBox();
    polygonMesh.frontFace = this.extrudeY ? graphicGL.Mesh.CCW : graphicGL.Mesh.CW;
    if (polygonMesh.material.get("normalMap")) {
      polygonMesh.geometry.generateTangents();
    }
    polygonMesh.seriesIndex = componentModel.seriesIndex;
    polygonMesh.on("mousemove", this._onmousemove, this);
    polygonMesh.on("mouseout", this._onmouseout, this);
  },
  _updateDebugWireframe: function(componentModel) {
    var debugWireframeModel = componentModel.getModel("debug.wireframe");
    if (debugWireframeModel.get("show")) {
      var color = graphicGL.parseColor(debugWireframeModel.get("lineStyle.color") || "rgba(0,0,0,0.5)");
      var width = retrieve.firstNotNull(debugWireframeModel.get("lineStyle.width"), 1);
      var mesh2 = this._polygonMesh;
      mesh2.geometry.generateBarycentric();
      mesh2.material.define("both", "WIREFRAME_TRIANGLE");
      mesh2.material.set("wireframeLineColor", color);
      mesh2.material.set("wireframeLineWidth", width);
    }
  },
  _onmousemove: function(e2) {
    var dataIndex = this._dataIndexOfVertex[e2.triangle[0]];
    if (dataIndex == null) {
      dataIndex = -1;
    }
    if (dataIndex !== this._lastHoverDataIndex) {
      this.downplay(this._lastHoverDataIndex);
      this.highlight(dataIndex);
      this._labelsBuilder.updateLabels([dataIndex]);
    }
    this._lastHoverDataIndex = dataIndex;
    this._polygonMesh.dataIndex = dataIndex;
  },
  _onmouseout: function(e2) {
    if (e2.target) {
      this.downplay(this._lastHoverDataIndex);
      this._lastHoverDataIndex = -1;
      this._polygonMesh.dataIndex = -1;
    }
    this._labelsBuilder.updateLabels([]);
  },
  _updateGroundPlane: function(componentModel, geo3D, api) {
    var groundModel = componentModel.getModel("groundPlane", componentModel);
    this._groundMesh.invisible = !groundModel.get("show", true);
    if (this._groundMesh.invisible) {
      return;
    }
    var shading = componentModel.get("shading");
    var material = this._groundMaterials[shading];
    if (!material) {
      material = this._groundMaterials.lambert;
    }
    graphicGL.setMaterialFromModel(shading, material, groundModel, api);
    if (material.get("normalMap")) {
      this._groundMesh.geometry.generateTangents();
    }
    this._groundMesh.material = material;
    this._groundMesh.material.set("color", graphicGL.parseColor(groundModel.get("color")));
    this._groundMesh.scale.set(geo3D.size[0], geo3D.size[2], 1);
  },
  _triangulation: function(componentModel, start, end) {
    this._triangulationResults = [];
    var minAll = [Infinity, Infinity, Infinity];
    var maxAll = [-Infinity, -Infinity, -Infinity];
    var coordSys = componentModel.coordinateSystem;
    for (var idx = start; idx < end; idx++) {
      var polygons = [];
      var polygonCoords = componentModel.getRegionPolygonCoords(idx);
      for (var i = 0; i < polygonCoords.length; i++) {
        var exterior = polygonCoords[i].exterior;
        var interiors = polygonCoords[i].interiors;
        var points = [];
        var holes = [];
        if (exterior.length < 3) {
          continue;
        }
        var offset = 0;
        for (var j = 0; j < exterior.length; j++) {
          var p = exterior[j];
          points[offset++] = p[0];
          points[offset++] = p[1];
        }
        for (var j = 0; j < interiors.length; j++) {
          if (interiors[j].length < 3) {
            continue;
          }
          var startIdx = points.length / 2;
          for (var k = 0; k < interiors[j].length; k++) {
            var p = interiors[j][k];
            points.push(p[0]);
            points.push(p[1]);
          }
          holes.push(startIdx);
        }
        var triangles = earcut(points, holes);
        var points3 = new Float64Array(points.length / 2 * 3);
        var pos = [];
        var min = [Infinity, Infinity, Infinity];
        var max = [-Infinity, -Infinity, -Infinity];
        var off3 = 0;
        for (var j = 0; j < points.length; ) {
          vec3$b.set(pos, points[j++], 0, points[j++]);
          if (coordSys && coordSys.transform) {
            vec3$b.transformMat4(pos, pos, coordSys.transform);
          }
          vec3$b.min(min, min, pos);
          vec3$b.max(max, max, pos);
          points3[off3++] = pos[0];
          points3[off3++] = pos[1];
          points3[off3++] = pos[2];
        }
        vec3$b.min(minAll, minAll, min);
        vec3$b.max(maxAll, maxAll, max);
        polygons.push({
          points: points3,
          indices: triangles,
          min,
          max
        });
      }
      this._triangulationResults.push(polygons);
    }
    this._geoBoundingBox = [minAll, maxAll];
  },
  /**
   * Get region vertex and triangle count
   */
  _getRegionPolygonInfo: function(idx) {
    var polygons = this._triangulationResults[idx - this._startIndex];
    var sideVertexCount = 0;
    var sideTriangleCount = 0;
    for (var i = 0; i < polygons.length; i++) {
      sideVertexCount += polygons[i].points.length / 3;
      sideTriangleCount += polygons[i].indices.length / 3;
    }
    var vertexCount = sideVertexCount * 2 + sideVertexCount * 4;
    var triangleCount = sideTriangleCount * 2 + sideVertexCount * 2;
    return {
      vertexCount,
      triangleCount
    };
  },
  _updatePolygonGeometry: function(componentModel, geometry, dataIndex, regionHeight, vertexOffset, triangleOffset, color) {
    var projectUVOnGround = componentModel.get("projectUVOnGround");
    var positionAttr = geometry.attributes.position;
    var normalAttr = geometry.attributes.normal;
    var texcoordAttr = geometry.attributes.texcoord0;
    var colorAttr = geometry.attributes.color;
    var polygons = this._triangulationResults[dataIndex - this._startIndex];
    var hasColor = colorAttr.value && color;
    var indices = geometry.indices;
    var extrudeCoordIndex = this.extrudeY ? 1 : 2;
    var sideCoordIndex = this.extrudeY ? 2 : 1;
    var scale = [this.rootNode.worldTransform.x.len(), this.rootNode.worldTransform.y.len(), this.rootNode.worldTransform.z.len()];
    var min = vec3$b.mul([], this._geoBoundingBox[0], scale);
    var max = vec3$b.mul([], this._geoBoundingBox[1], scale);
    var maxDimSize = Math.max(max[0] - min[0], max[2] - min[2]);
    function addVertices(polygon2, y, insideOffset) {
      var points = polygon2.points;
      var pointsLen = points.length;
      var currentPosition = [];
      var uv2 = [];
      for (var k2 = 0; k2 < pointsLen; k2 += 3) {
        currentPosition[0] = points[k2];
        currentPosition[extrudeCoordIndex] = y;
        currentPosition[sideCoordIndex] = points[k2 + 2];
        uv2[0] = (points[k2] * scale[0] - min[0]) / maxDimSize;
        uv2[1] = (points[k2 + 2] * scale[sideCoordIndex] - min[2]) / maxDimSize;
        positionAttr.set(vertexOffset, currentPosition);
        if (hasColor) {
          colorAttr.set(vertexOffset, color);
        }
        texcoordAttr.set(vertexOffset++, uv2);
      }
    }
    function buildTopBottom(polygon2, y, insideOffset) {
      var startVertexOffset2 = vertexOffset;
      addVertices(polygon2, y);
      var len2 = polygon2.indices.length;
      for (var k2 = 0; k2 < len2; k2++) {
        indices[triangleOffset * 3 + k2] = polygon2.indices[k2] + startVertexOffset2;
      }
      triangleOffset += polygon2.indices.length / 3;
    }
    var normalTop = this.extrudeY ? [0, 1, 0] : [0, 0, 1];
    var normalBottom = vec3$b.negate([], normalTop);
    for (var p = 0; p < polygons.length; p++) {
      var startVertexOffset = vertexOffset;
      var polygon = polygons[p];
      buildTopBottom(polygon, 0);
      buildTopBottom(polygon, regionHeight);
      var ringVertexCount = polygon.points.length / 3;
      for (var v = 0; v < ringVertexCount; v++) {
        normalAttr.set(startVertexOffset + v, normalBottom);
        normalAttr.set(startVertexOffset + v + ringVertexCount, normalTop);
      }
      var quadToTriangle = [0, 3, 1, 1, 3, 2];
      var quadPos = [[], [], [], []];
      var a = [];
      var b = [];
      var normal2 = [];
      var uv = [];
      var len = 0;
      for (var v = 0; v < ringVertexCount; v++) {
        var next = (v + 1) % ringVertexCount;
        var dx = (polygon.points[next * 3] - polygon.points[v * 3]) * scale[0];
        var dy = (polygon.points[next * 3 + 2] - polygon.points[v * 3 + 2]) * scale[sideCoordIndex];
        var sideLen = Math.sqrt(dx * dx + dy * dy);
        for (var k = 0; k < 4; k++) {
          var isCurrent = k === 0 || k === 3;
          var idx3 = (isCurrent ? v : next) * 3;
          quadPos[k][0] = polygon.points[idx3];
          quadPos[k][extrudeCoordIndex] = k > 1 ? regionHeight : 0;
          quadPos[k][sideCoordIndex] = polygon.points[idx3 + 2];
          positionAttr.set(vertexOffset + k, quadPos[k]);
          if (projectUVOnGround) {
            uv[0] = (polygon.points[idx3] * scale[0] - min[0]) / maxDimSize;
            uv[1] = (polygon.points[idx3 + 2] * scale[sideCoordIndex] - min[sideCoordIndex]) / maxDimSize;
          } else {
            uv[0] = (isCurrent ? len : len + sideLen) / maxDimSize;
            uv[1] = (quadPos[k][extrudeCoordIndex] * scale[extrudeCoordIndex] - min[extrudeCoordIndex]) / maxDimSize;
          }
          texcoordAttr.set(vertexOffset + k, uv);
        }
        vec3$b.sub(a, quadPos[1], quadPos[0]);
        vec3$b.sub(b, quadPos[3], quadPos[0]);
        vec3$b.cross(normal2, a, b);
        vec3$b.normalize(normal2, normal2);
        for (var k = 0; k < 4; k++) {
          normalAttr.set(vertexOffset + k, normal2);
          if (hasColor) {
            colorAttr.set(vertexOffset + k, color);
          }
        }
        for (var k = 0; k < 6; k++) {
          indices[triangleOffset * 3 + k] = quadToTriangle[k] + vertexOffset;
        }
        vertexOffset += 4;
        triangleOffset += 2;
        len += sideLen;
      }
    }
    geometry.dirty();
    return {
      vertexOffset,
      triangleOffset
    };
  },
  _getRegionLinesInfo: function(idx, componentModel, geometry) {
    var vertexCount = 0;
    var triangleCount = 0;
    var regionModel = componentModel.getRegionModel(idx);
    var itemStyleModel = regionModel.getModel("itemStyle");
    var lineWidth = itemStyleModel.get("borderWidth");
    if (lineWidth > 0) {
      var polygonCoords = componentModel.getRegionPolygonCoords(idx);
      polygonCoords.forEach(function(coords) {
        var exterior = coords.exterior;
        var interiors = coords.interiors;
        vertexCount += geometry.getPolylineVertexCount(exterior);
        triangleCount += geometry.getPolylineTriangleCount(exterior);
        for (var i = 0; i < interiors.length; i++) {
          vertexCount += geometry.getPolylineVertexCount(interiors[i]);
          triangleCount += geometry.getPolylineTriangleCount(interiors[i]);
        }
      }, this);
    }
    return {
      vertexCount,
      triangleCount
    };
  },
  _updateLinesGeometry: function(geometry, componentModel, dataIndex, regionHeight, lineWidth, transform) {
    function convertToPoints3(polygon) {
      var points = new Float64Array(polygon.length * 3);
      var offset = 0;
      var pos = [];
      for (var i = 0; i < polygon.length; i++) {
        pos[0] = polygon[i][0];
        pos[1] = regionHeight + 0.1;
        pos[2] = polygon[i][1];
        if (transform) {
          vec3$b.transformMat4(pos, pos, transform);
        }
        points[offset++] = pos[0];
        points[offset++] = pos[1];
        points[offset++] = pos[2];
      }
      return points;
    }
    var whiteColor = [1, 1, 1, 1];
    var coords = componentModel.getRegionPolygonCoords(dataIndex);
    coords.forEach(function(geo) {
      var exterior = geo.exterior;
      var interiors = geo.interiors;
      geometry.addPolyline(convertToPoints3(exterior), whiteColor, lineWidth);
      for (var i = 0; i < interiors.length; i++) {
        geometry.addPolyline(convertToPoints3(interiors[i]), whiteColor, lineWidth);
      }
    });
  },
  highlight: function(dataIndex) {
    var data = this._data;
    if (!data) {
      return;
    }
    var itemModel = data.getItemModel(dataIndex);
    var emphasisItemStyleModel = itemModel.getModel(["emphasis", "itemStyle"]);
    var emphasisColor = emphasisItemStyleModel.get("color");
    var emphasisOpacity = retrieve.firstNotNull(emphasisItemStyleModel.get("opacity"), getItemVisualOpacity(data, dataIndex), 1);
    if (emphasisColor == null) {
      var color = getItemVisualColor(data, dataIndex);
      emphasisColor = lift(color, -0.4);
    }
    if (emphasisOpacity == null) {
      emphasisOpacity = getItemVisualOpacity(data, dataIndex);
    }
    var colorArr = graphicGL.parseColor(emphasisColor);
    colorArr[3] *= emphasisOpacity;
    this._setColorOfDataIndex(data, dataIndex, colorArr);
  },
  downplay: function(dataIndex) {
    var data = this._data;
    if (!data) {
      return;
    }
    var itemStyleModel = data.getItemModel(dataIndex);
    var color = retrieve.firstNotNull(getItemVisualColor(data, dataIndex), itemStyleModel.get(["itemStyle", "color"]), "#fff");
    var opacity = retrieve.firstNotNull(getItemVisualOpacity(data, dataIndex), itemStyleModel.get(["itemStyle", "opacity"]), 1);
    var colorArr = graphicGL.parseColor(color);
    colorArr[3] *= opacity;
    this._setColorOfDataIndex(data, dataIndex, colorArr);
  },
  dispose: function() {
    this._labelsBuilder.dispose();
  },
  _setColorOfDataIndex: function(data, dataIndex, colorArr) {
    if (dataIndex < this._startIndex && dataIndex > this._endIndex) {
      return;
    }
    dataIndex -= this._startIndex;
    for (var i = this._vertexRangeOfDataIndex[dataIndex * 2]; i < this._vertexRangeOfDataIndex[dataIndex * 2 + 1]; i++) {
      this._polygonMesh.geometry.attributes.color.set(i, colorArr);
    }
    this._polygonMesh.geometry.dirty();
    this._api.getZr().refresh();
  }
};
const Geo3DView = ComponentView.extend({
  type: "geo3D",
  __ecgl__: true,
  init: function(ecModel, api) {
    this._geo3DBuilder = new Geo3DBuilder(api);
    this.groupGL = new graphicGL.Node();
    this._lightRoot = new graphicGL.Node();
    this._sceneHelper = new SceneHelper(this._lightRoot);
    this._sceneHelper.initLight(this._lightRoot);
    this._control = new OrbitControl({
      zr: api.getZr()
    });
    this._control.init();
  },
  render: function(geo3DModel, ecModel, api) {
    this.groupGL.add(this._geo3DBuilder.rootNode);
    var geo3D = geo3DModel.coordinateSystem;
    if (!geo3D || !geo3D.viewGL) {
      return;
    }
    geo3D.viewGL.add(this._lightRoot);
    if (geo3DModel.get("show")) {
      geo3D.viewGL.add(this.groupGL);
    } else {
      geo3D.viewGL.remove(this.groupGL);
    }
    var control = this._control;
    control.setViewGL(geo3D.viewGL);
    var viewControlModel = geo3DModel.getModel("viewControl");
    control.setFromViewControlModel(viewControlModel, 0);
    this._sceneHelper.setScene(geo3D.viewGL.scene);
    this._sceneHelper.updateLight(geo3DModel);
    geo3D.viewGL.setPostEffect(geo3DModel.getModel("postEffect"), api);
    geo3D.viewGL.setTemporalSuperSampling(geo3DModel.getModel("temporalSuperSampling"));
    this._geo3DBuilder.update(geo3DModel, ecModel, api, 0, geo3DModel.getData().count());
    var srgbDefineMethod = geo3D.viewGL.isLinearSpace() ? "define" : "undefine";
    this._geo3DBuilder.rootNode.traverse(function(mesh2) {
      if (mesh2.material) {
        mesh2.material[srgbDefineMethod]("fragment", "SRGB_DECODE");
      }
    });
    control.off("update");
    control.on("update", function() {
      api.dispatchAction({
        type: "geo3DChangeCamera",
        alpha: control.getAlpha(),
        beta: control.getBeta(),
        distance: control.getDistance(),
        center: control.getCenter(),
        from: this.uid,
        geo3DId: geo3DModel.id
      });
    });
    control.update();
  },
  afterRender: function(geo3DModel, ecModel, api, layerGL) {
    var renderer = layerGL.renderer;
    this._sceneHelper.updateAmbientCubemap(renderer, geo3DModel, api);
    this._sceneHelper.updateSkybox(renderer, geo3DModel, api);
  },
  dispose: function() {
    this._control.dispose();
    this._geo3DBuilder.dispose();
  }
});
var geoCoordMap = {
  "Russia": [100, 60],
  "United States": [-99, 38],
  "United States of America": [-99, 38]
};
function fixGeoCoords(mapType, region) {
  if (mapType === "world") {
    var geoCoord = geoCoordMap[region.name];
    if (geoCoord) {
      var cp = [geoCoord[0], geoCoord[1]];
      region.setCenter(cp);
    }
  }
}
var vec3$a = glmatrix.vec3;
var mat4$1 = glmatrix.mat4;
var geoFixFuncs = [fixTextCoords, fixGeoCoords];
function Geo3D(name, map2, geoJson, specialAreas, nameMap) {
  this.name = name;
  this.map = map2;
  this.regionHeight = 0;
  this.regions = [];
  this._nameCoordMap = {};
  this.loadGeoJson(geoJson, specialAreas, nameMap);
  this.transform = mat4$1.identity(new Float64Array(16));
  this.invTransform = mat4$1.identity(new Float64Array(16));
  this.extrudeY = true;
  this.altitudeAxis;
}
Geo3D.prototype = {
  constructor: Geo3D,
  type: "geo3D",
  dimensions: ["lng", "lat", "alt"],
  containPoint: function() {
  },
  loadGeoJson: function(geoJson, specialAreas, nameMap) {
    var parseGeoJSON$1 = parseGeoJSON || parseGeoJSON;
    try {
      this.regions = geoJson ? parseGeoJSON$1(geoJson) : [];
    } catch (e2) {
      throw "Invalid geoJson format\n" + e2;
    }
    specialAreas = specialAreas || {};
    nameMap = nameMap || {};
    var regions = this.regions;
    var regionsMap = {};
    for (var i = 0; i < regions.length; i++) {
      var regionName = regions[i].name;
      regionName = nameMap[regionName] || regionName;
      regions[i].name = regionName;
      regionsMap[regionName] = regions[i];
      this.addGeoCoord(regionName, regions[i].getCenter());
      var specialArea = specialAreas[regionName];
      if (specialArea) {
        regions[i].transformTo(specialArea.left, specialArea.top, specialArea.width, specialArea.height);
      }
    }
    this._regionsMap = regionsMap;
    this._geoRect = null;
    geoFixFuncs.forEach(function(fixFunc) {
      fixFunc(this);
    }, this);
  },
  getGeoBoundingRect: function() {
    if (this._geoRect) {
      return this._geoRect;
    }
    var rect;
    var regions = this.regions;
    for (var i = 0; i < regions.length; i++) {
      var regionRect = regions[i].getBoundingRect();
      rect = rect || regionRect.clone();
      rect.union(regionRect);
    }
    return this._geoRect = rect || new BoundingRect(0, 0, 0, 0);
  },
  /**
   * Add geoCoord for indexing by name
   * @param {string} name
   * @param {Array.<number>} geoCoord
   */
  addGeoCoord: function(name, geoCoord) {
    this._nameCoordMap[name] = geoCoord;
  },
  /**
   * @param {string} name
   * @return {module:echarts/coord/geo/Region}
   */
  getRegion: function(name) {
    return this._regionsMap[name];
  },
  getRegionByCoord: function(coord) {
    var regions = this.regions;
    for (var i = 0; i < regions.length; i++) {
      if (regions[i].contain(coord)) {
        return regions[i];
      }
    }
  },
  setSize: function(width, height, depth) {
    this.size = [width, height, depth];
    var rect = this.getGeoBoundingRect();
    var scaleX = width / rect.width;
    var scaleZ = -depth / rect.height;
    var translateX = -width / 2 - rect.x * scaleX;
    var translateZ = depth / 2 - rect.y * scaleZ;
    var position = this.extrudeY ? [translateX, 0, translateZ] : [translateX, translateZ, 0];
    var scale = this.extrudeY ? [scaleX, 1, scaleZ] : [scaleX, scaleZ, 1];
    var m = this.transform;
    mat4$1.identity(m);
    mat4$1.translate(m, m, position);
    mat4$1.scale(m, m, scale);
    mat4$1.invert(this.invTransform, m);
  },
  dataToPoint: function(data, out) {
    out = out || [];
    var extrudeCoordIndex = this.extrudeY ? 1 : 2;
    var sideCoordIndex = this.extrudeY ? 2 : 1;
    var altitudeVal = data[2];
    if (isNaN(altitudeVal)) {
      altitudeVal = 0;
    }
    out[0] = data[0];
    out[sideCoordIndex] = data[1];
    if (this.altitudeAxis) {
      out[extrudeCoordIndex] = this.altitudeAxis.dataToCoord(altitudeVal);
    } else {
      out[extrudeCoordIndex] = 0;
    }
    out[extrudeCoordIndex] += this.regionHeight;
    vec3$a.transformMat4(out, out, this.transform);
    return out;
  },
  pointToData: function(point, out) {
  }
};
function resizeGeo3D(geo3DModel, api) {
  var boxLayoutOption = geo3DModel.getBoxLayoutParams();
  var viewport = getLayoutRect(boxLayoutOption, {
    width: api.getWidth(),
    height: api.getHeight()
  });
  viewport.y = api.getHeight() - viewport.y - viewport.height;
  this.viewGL.setViewport(viewport.x, viewport.y, viewport.width, viewport.height, api.getDevicePixelRatio());
  var geoRect = this.getGeoBoundingRect();
  var aspect = geoRect.width / geoRect.height * (geo3DModel.get("aspectScale") || 0.75);
  var width = geo3DModel.get("boxWidth");
  var depth = geo3DModel.get("boxDepth");
  var height = geo3DModel.get("boxHeight");
  if (height == null) {
    height = 5;
  }
  if (isNaN(width) && isNaN(depth)) {
    width = 100;
  }
  if (isNaN(depth)) {
    depth = width / aspect;
  } else if (isNaN(width)) {
    width = depth / aspect;
  }
  this.setSize(width, height, depth);
  this.regionHeight = geo3DModel.get("regionHeight");
  if (this.altitudeAxis) {
    this.altitudeAxis.setExtent(0, Math.max(height - this.regionHeight, 0));
  }
}
function updateGeo3D(ecModel, api) {
  var altitudeDataExtent = [Infinity, -Infinity];
  ecModel.eachSeries(function(seriesModel) {
    if (seriesModel.coordinateSystem !== this) {
      return;
    }
    if (seriesModel.type === "series.map3D") {
      return;
    }
    var data = seriesModel.getData();
    var altDims = seriesModel.coordDimToDataDim("alt");
    var altDim = altDims && altDims[0];
    if (altDim) {
      var dataExtent = data.getDataExtent(altDim, true);
      altitudeDataExtent[0] = Math.min(altitudeDataExtent[0], dataExtent[0]);
      altitudeDataExtent[1] = Math.max(altitudeDataExtent[1], dataExtent[1]);
    }
  }, this);
  if (altitudeDataExtent && isFinite(altitudeDataExtent[1] - altitudeDataExtent[0])) {
    var scale = createScale(altitudeDataExtent, {
      type: "value",
      // PENDING
      min: "dataMin",
      max: "dataMax"
    });
    this.altitudeAxis = new Axis("altitude", scale);
    this.resize(this.model, api);
  }
}
var idStart = 0;
var geo3DCreator = {
  dimensions: Geo3D.prototype.dimensions,
  create: function(ecModel, api) {
    var geo3DList = [];
    if (!getMap) {
      throw new Error("geo3D component depends on geo component");
    }
    function createGeo3D(componentModel, idx) {
      var geo3D = geo3DCreator.createGeo3D(componentModel);
      componentModel.__viewGL = componentModel.__viewGL || new ViewGL();
      geo3D.viewGL = componentModel.__viewGL;
      componentModel.coordinateSystem = geo3D;
      geo3D.model = componentModel;
      geo3DList.push(geo3D);
      geo3D.resize = resizeGeo3D;
      geo3D.resize(componentModel, api);
      geo3D.update = updateGeo3D;
    }
    ecModel.eachComponent("geo3D", function(geo3DModel, idx) {
      createGeo3D(geo3DModel);
    });
    ecModel.eachSeriesByType("map3D", function(map3DModel, idx) {
      var coordSys = map3DModel.get("coordinateSystem");
      if (coordSys == null) {
        coordSys = "geo3D";
      }
      if (coordSys === "geo3D") {
        createGeo3D(map3DModel);
      }
    });
    ecModel.eachSeries(function(seriesModel) {
      if (seriesModel.get("coordinateSystem") === "geo3D") {
        if (seriesModel.type === "series.map3D") {
          return;
        }
        var geo3DModel = seriesModel.getReferringComponents("geo3D").models[0];
        if (!geo3DModel) {
          geo3DModel = ecModel.getComponent("geo3D");
        }
        if (!geo3DModel) {
          throw new Error('geo "' + retrieve.firstNotNull(seriesModel.get("geo3DIndex"), seriesModel.get("geo3DId"), 0) + '" not found');
        }
        seriesModel.coordinateSystem = geo3DModel.coordinateSystem;
      }
    });
    return geo3DList;
  },
  createGeo3D: function(componentModel) {
    var mapData = componentModel.get("map");
    var name;
    if (typeof mapData === "string") {
      name = mapData;
      mapData = getMap(mapData);
    } else {
      if (mapData && mapData.features) {
        mapData = {
          geoJson: mapData
        };
      }
    }
    if (name == null) {
      name = "GEO_ANONYMOUS_" + idStart++;
    }
    return new Geo3D(name + idStart++, name, mapData && mapData.geoJson, mapData && mapData.specialAreas, componentModel.get("nameMap"));
  }
};
function install$e(registers) {
  registers.registerComponentModel(Geo3DModel);
  registers.registerComponentView(Geo3DView);
  registers.registerAction({
    type: "geo3DChangeCamera",
    event: "geo3dcamerachanged",
    update: "series:updateCamera"
  }, function(payload, ecModel) {
    ecModel.eachComponent({
      mainType: "geo3D",
      query: payload
    }, function(componentModel) {
      componentModel.setView(payload);
    });
  });
  registers.registerCoordinateSystem("geo3D", geo3DCreator);
}
use(install$e);
function defaultId(option, idx) {
  option.id = option.id || option.name || idx + "";
}
var GlobeModel = ComponentModel.extend({
  type: "globe",
  layoutMode: "box",
  coordinateSystem: null,
  init: function() {
    GlobeModel.superApply(this, "init", arguments);
    each(this.option.layers, function(layerOption, idx) {
      merge(layerOption, this.defaultLayerOption);
      defaultId(layerOption, idx);
    }, this);
  },
  mergeOption: function(option) {
    var oldLayers = this.option.layers;
    this.option.layers = null;
    GlobeModel.superApply(this, "mergeOption", arguments);
    function createLayerMap(layers) {
      return reduce$1(layers, function(obj, layerOption, idx) {
        defaultId(layerOption, idx);
        obj[layerOption.id] = layerOption;
        return obj;
      }, {});
    }
    if (oldLayers && oldLayers.length) {
      var newLayerMap = createLayerMap(option.layers);
      var oldLayerMap = createLayerMap(oldLayers);
      for (var id in newLayerMap) {
        if (oldLayerMap[id]) {
          merge(oldLayerMap[id], newLayerMap[id], true);
        } else {
          oldLayers.push(option.layers[id]);
        }
      }
      this.option.layers = oldLayers;
    }
    each(this.option.layers, function(layerOption) {
      merge(layerOption, this.defaultLayerOption);
    }, this);
  },
  optionUpdated: function() {
    this.updateDisplacementHash();
  },
  defaultLayerOption: {
    show: true,
    type: "overlay"
  },
  defaultOption: {
    show: true,
    zlevel: -10,
    // Layout used for viewport
    left: 0,
    top: 0,
    width: "100%",
    height: "100%",
    environment: "auto",
    baseColor: "#fff",
    // Base albedo texture
    baseTexture: "",
    // Height texture for bump mapping and vertex displacement
    heightTexture: "",
    // Texture for vertex displacement, default use heightTexture
    displacementTexture: "",
    // Scale of vertex displacement, available only if displacementTexture is set.
    displacementScale: 0,
    // Detail of displacement. 'low', 'medium', 'high', 'ultra'
    displacementQuality: "medium",
    // Globe radius
    globeRadius: 100,
    // Globe outer radius. Which is max of altitude.
    globeOuterRadius: 150,
    // Shading of globe
    shading: "lambert",
    // Extend light
    light: {
      // Main sun light
      main: {
        // Time, default it will use system time
        time: ""
      }
    },
    // atmosphere
    atmosphere: {
      show: false,
      offset: 5,
      color: "#ffffff",
      glowPower: 6,
      innerGlowPower: 2
    },
    // light
    // postEffect
    // temporalSuperSampling
    viewControl: {
      autoRotate: true,
      panSensitivity: 0,
      targetCoord: null
    },
    // {
    //     show: true,
    //     name: 'cloud',
    //     type: 'overlay',
    //     shading: 'lambert',
    //     distance: 10,
    //     texture: ''
    // }
    // {
    //     type: 'blend',
    //     blendTo: 'albedo'
    //     blendType: 'source-over'
    // }
    layers: []
  },
  setDisplacementData: function(data, width, height) {
    this.displacementData = data;
    this.displacementWidth = width;
    this.displacementHeight = height;
  },
  getDisplacementTexture: function() {
    return this.get("displacementTexture") || this.get("heightTexture");
  },
  getDisplacemenScale: function() {
    var displacementTexture = this.getDisplacementTexture();
    var displacementScale = this.get("displacementScale");
    if (!displacementTexture || displacementTexture === "none") {
      displacementScale = 0;
    }
    return displacementScale;
  },
  hasDisplacement: function() {
    return this.getDisplacemenScale() > 0;
  },
  _displacementChanged: true,
  _displacementScale: 0,
  updateDisplacementHash: function() {
    var displacementTexture = this.getDisplacementTexture();
    var displacementScale = this.getDisplacemenScale();
    this._displacementChanged = this._displacementTexture !== displacementTexture || this._displacementScale !== displacementScale;
    this._displacementTexture = displacementTexture;
    this._displacementScale = displacementScale;
  },
  isDisplacementChanged: function() {
    return this._displacementChanged;
  }
});
merge(GlobeModel.prototype, componentViewControlMixin);
merge(GlobeModel.prototype, componentPostEffectMixin);
merge(GlobeModel.prototype, componentLightMixin);
merge(GlobeModel.prototype, componentShadingMixin);
var PI$1 = Math.PI, sin = Math.sin, cos = Math.cos, tan = Math.tan, asin = Math.asin, atan = Math.atan2, rad = PI$1 / 180;
var dayMs = 1e3 * 60 * 60 * 24, J1970 = 2440588, J2000 = 2451545;
function toJulian(date) {
  return date.valueOf() / dayMs - 0.5 + J1970;
}
function toDays(date) {
  return toJulian(date) - J2000;
}
var e = rad * 23.4397;
function rightAscension(l, b) {
  return atan(sin(l) * cos(e) - tan(b) * sin(e), cos(l));
}
function declination(l, b) {
  return asin(sin(b) * cos(e) + cos(b) * sin(e) * sin(l));
}
function azimuth(H, phi, dec) {
  return atan(sin(H), cos(H) * sin(phi) - tan(dec) * cos(phi));
}
function altitude(H, phi, dec) {
  return asin(sin(phi) * sin(dec) + cos(phi) * cos(dec) * cos(H));
}
function siderealTime(d, lw) {
  return rad * (280.16 + 360.9856235 * d) - lw;
}
function solarMeanAnomaly(d) {
  return rad * (357.5291 + 0.98560028 * d);
}
function eclipticLongitude(M) {
  var C = rad * (1.9148 * sin(M) + 0.02 * sin(2 * M) + 3e-4 * sin(3 * M)), P = rad * 102.9372;
  return M + C + P + PI$1;
}
function sunCoords(d) {
  var M = solarMeanAnomaly(d), L = eclipticLongitude(M);
  return {
    dec: declination(L, 0),
    ra: rightAscension(L, 0)
  };
}
var SunCalc = {};
SunCalc.getPosition = function(date, lat, lng) {
  var lw = rad * -lng, phi = rad * lat, d = toDays(date), c = sunCoords(d), H = siderealTime(d, lw) - c.ra;
  return {
    azimuth: azimuth(H, phi, c.dec),
    altitude: altitude(H, phi, c.dec)
  };
};
const atmosphereShaderCode = "@export ecgl.atmosphere.vertex\nattribute vec3 position: POSITION;\nattribute vec3 normal : NORMAL;\nuniform mat4 worldViewProjection : WORLDVIEWPROJECTION;\nuniform mat4 normalMatrix : WORLDINVERSETRANSPOSE;\n\nvarying vec3 v_Normal;\n\nvoid main() {\n v_Normal = normalize((normalMatrix * vec4(normal, 0.0)).xyz);\n gl_Position = worldViewProjection * vec4(position, 1.0);\n}\n@end\n\n\n@export ecgl.atmosphere.fragment\nuniform mat4 viewTranspose: VIEWTRANSPOSE;\nuniform float glowPower;\nuniform vec3 glowColor;\n\nvarying vec3 v_Normal;\n\nvoid main() {\n float intensity = pow(1.0 - dot(v_Normal, (viewTranspose * vec4(0.0, 0.0, 1.0, 0.0)).xyz), glowPower);\n gl_FragColor = vec4(glowColor, intensity * intensity);\n}\n@end";
graphicGL.Shader["import"](utilShaderCode);
graphicGL.Shader["import"](atmosphereShaderCode);
const GlobeView = ComponentView.extend({
  type: "globe",
  __ecgl__: true,
  _displacementScale: 0,
  init: function(ecModel, api) {
    this.groupGL = new graphicGL.Node();
    this._sphereGeometry = new graphicGL.SphereGeometry({
      widthSegments: 200,
      heightSegments: 100,
      dynamic: true
    });
    this._overlayGeometry = new graphicGL.SphereGeometry({
      widthSegments: 80,
      heightSegments: 40
    });
    this._planeGeometry = new graphicGL.PlaneGeometry();
    this._earthMesh = new graphicGL.Mesh({
      renderNormal: true
    });
    this._atmosphereMesh = new graphicGL.Mesh();
    this._atmosphereGeometry = new graphicGL.SphereGeometry({
      widthSegments: 80,
      heightSegments: 40
    });
    this._atmosphereMaterial = new graphicGL.Material({
      shader: new graphicGL.Shader(graphicGL.Shader.source("ecgl.atmosphere.vertex"), graphicGL.Shader.source("ecgl.atmosphere.fragment")),
      transparent: true
    });
    this._atmosphereMesh.geometry = this._atmosphereGeometry;
    this._atmosphereMesh.material = this._atmosphereMaterial;
    this._atmosphereMesh.frontFace = graphicGL.Mesh.CW;
    this._lightRoot = new graphicGL.Node();
    this._sceneHelper = new SceneHelper();
    this._sceneHelper.initLight(this._lightRoot);
    this.groupGL.add(this._atmosphereMesh);
    this.groupGL.add(this._earthMesh);
    this._control = new OrbitControl({
      zr: api.getZr()
    });
    this._control.init();
    this._layerMeshes = {};
  },
  render: function(globeModel, ecModel, api) {
    var coordSys = globeModel.coordinateSystem;
    var shading = globeModel.get("shading");
    coordSys.viewGL.add(this._lightRoot);
    if (globeModel.get("show")) {
      coordSys.viewGL.add(this.groupGL);
    } else {
      coordSys.viewGL.remove(this.groupGL);
    }
    this._sceneHelper.setScene(coordSys.viewGL.scene);
    coordSys.viewGL.setPostEffect(globeModel.getModel("postEffect"), api);
    coordSys.viewGL.setTemporalSuperSampling(globeModel.getModel("temporalSuperSampling"));
    var earthMesh = this._earthMesh;
    earthMesh.geometry = this._sphereGeometry;
    var shadingPrefix = "ecgl." + shading;
    if (!earthMesh.material || earthMesh.material.shader.name !== shadingPrefix) {
      earthMesh.material = graphicGL.createMaterial(shadingPrefix);
    }
    graphicGL.setMaterialFromModel(shading, earthMesh.material, globeModel, api);
    ["roughnessMap", "metalnessMap", "detailMap", "normalMap"].forEach(function(texName) {
      var texture = earthMesh.material.get(texName);
      if (texture) {
        texture.flipY = false;
      }
    });
    earthMesh.material.set("color", graphicGL.parseColor(globeModel.get("baseColor")));
    var scale = coordSys.radius * 0.99;
    earthMesh.scale.set(scale, scale, scale);
    if (globeModel.get("atmosphere.show")) {
      earthMesh.material.define("both", "ATMOSPHERE_ENABLED");
      this._atmosphereMesh.invisible = false;
      this._atmosphereMaterial.setUniforms({
        glowPower: globeModel.get("atmosphere.glowPower") || 6,
        glowColor: globeModel.get("atmosphere.color") || "#ffffff"
      });
      earthMesh.material.setUniforms({
        glowPower: globeModel.get("atmosphere.innerGlowPower") || 2,
        glowColor: globeModel.get("atmosphere.color") || "#ffffff"
      });
      var offset = globeModel.get("atmosphere.offset") || 5;
      this._atmosphereMesh.scale.set(scale + offset, scale + offset, scale + offset);
    } else {
      earthMesh.material.undefine("both", "ATMOSPHERE_ENABLED");
      this._atmosphereMesh.invisible = true;
    }
    var diffuseTexture = earthMesh.material.setTextureImage("diffuseMap", globeModel.get("baseTexture"), api, {
      flipY: false,
      anisotropic: 8
    });
    if (diffuseTexture && diffuseTexture.surface) {
      diffuseTexture.surface.attachToMesh(earthMesh);
    }
    var bumpTexture = earthMesh.material.setTextureImage("bumpMap", globeModel.get("heightTexture"), api, {
      flipY: false,
      anisotropic: 8
    });
    if (bumpTexture && bumpTexture.surface) {
      bumpTexture.surface.attachToMesh(earthMesh);
    }
    earthMesh.material[globeModel.get("postEffect.enable") ? "define" : "undefine"]("fragment", "SRGB_DECODE");
    this._updateLight(globeModel, api);
    this._displaceVertices(globeModel, api);
    this._updateViewControl(globeModel, api);
    this._updateLayers(globeModel, api);
  },
  afterRender: function(globeModel, ecModel, api, layerGL) {
    var renderer = layerGL.renderer;
    this._sceneHelper.updateAmbientCubemap(renderer, globeModel, api);
    this._sceneHelper.updateSkybox(renderer, globeModel, api);
  },
  _updateLayers: function(globeModel, api) {
    var coordSys = globeModel.coordinateSystem;
    var layers = globeModel.get("layers");
    var lastDistance = coordSys.radius;
    var layerDiffuseTextures = [];
    var layerDiffuseIntensity = [];
    var layerEmissiveTextures = [];
    var layerEmissionIntensity = [];
    each(layers, function(layerOption) {
      var layerModel = new Model(layerOption);
      var layerType = layerModel.get("type");
      var texture = graphicGL.loadTexture(layerModel.get("texture"), api, {
        flipY: false,
        anisotropic: 8
      });
      if (texture.surface) {
        texture.surface.attachToMesh(this._earthMesh);
      }
      if (layerType === "blend") {
        var blendTo = layerModel.get("blendTo");
        var intensity = retrieve.firstNotNull(layerModel.get("intensity"), 1);
        if (blendTo === "emission") {
          layerEmissiveTextures.push(texture);
          layerEmissionIntensity.push(intensity);
        } else {
          layerDiffuseTextures.push(texture);
          layerDiffuseIntensity.push(intensity);
        }
      } else {
        var id = layerModel.get("id");
        var overlayMesh = this._layerMeshes[id];
        if (!overlayMesh) {
          overlayMesh = this._layerMeshes[id] = new graphicGL.Mesh({
            geometry: this._overlayGeometry,
            castShadow: false,
            ignorePicking: true
          });
        }
        var shading = layerModel.get("shading");
        if (shading === "lambert") {
          overlayMesh.material = overlayMesh.__lambertMaterial || new graphicGL.Material({
            autoUpdateTextureStatus: false,
            shader: graphicGL.createShader("ecgl.lambert"),
            transparent: true,
            depthMask: false
          });
          overlayMesh.__lambertMaterial = overlayMesh.material;
        } else {
          overlayMesh.material = overlayMesh.__colorMaterial || new graphicGL.Material({
            autoUpdateTextureStatus: false,
            shader: graphicGL.createShader("ecgl.color"),
            transparent: true,
            depthMask: false
          });
          overlayMesh.__colorMaterial = overlayMesh.material;
        }
        overlayMesh.material.enableTexture("diffuseMap");
        var distance = layerModel.get("distance");
        var radius = lastDistance + (distance == null ? coordSys.radius / 100 : distance);
        overlayMesh.scale.set(radius, radius, radius);
        lastDistance = radius;
        var blankTexture = this._blankTexture || (this._blankTexture = graphicGL.createBlankTexture("rgba(255, 255, 255, 0)"));
        overlayMesh.material.set("diffuseMap", blankTexture);
        graphicGL.loadTexture(layerModel.get("texture"), api, {
          flipY: false,
          anisotropic: 8
        }, function(texture2) {
          if (texture2.surface) {
            texture2.surface.attachToMesh(overlayMesh);
          }
          overlayMesh.material.set("diffuseMap", texture2);
          api.getZr().refresh();
        });
        layerModel.get("show") ? this.groupGL.add(overlayMesh) : this.groupGL.remove(overlayMesh);
      }
    }, this);
    var earthMaterial = this._earthMesh.material;
    earthMaterial.define("fragment", "LAYER_DIFFUSEMAP_COUNT", layerDiffuseTextures.length);
    earthMaterial.define("fragment", "LAYER_EMISSIVEMAP_COUNT", layerEmissiveTextures.length);
    earthMaterial.set("layerDiffuseMap", layerDiffuseTextures);
    earthMaterial.set("layerDiffuseIntensity", layerDiffuseIntensity);
    earthMaterial.set("layerEmissiveMap", layerEmissiveTextures);
    earthMaterial.set("layerEmissionIntensity", layerEmissionIntensity);
    var debugWireframeModel = globeModel.getModel("debug.wireframe");
    if (debugWireframeModel.get("show")) {
      earthMaterial.define("both", "WIREFRAME_TRIANGLE");
      var color = graphicGL.parseColor(debugWireframeModel.get("lineStyle.color") || "rgba(0,0,0,0.5)");
      var width = retrieve.firstNotNull(debugWireframeModel.get("lineStyle.width"), 1);
      earthMaterial.set("wireframeLineWidth", width);
      earthMaterial.set("wireframeLineColor", color);
    } else {
      earthMaterial.undefine("both", "WIREFRAME_TRIANGLE");
    }
  },
  _updateViewControl: function(globeModel, api) {
    var coordSys = globeModel.coordinateSystem;
    var viewControlModel = globeModel.getModel("viewControl");
    coordSys.viewGL.camera;
    var self2 = this;
    function makeAction() {
      return {
        type: "globeChangeCamera",
        alpha: control.getAlpha(),
        beta: control.getBeta(),
        distance: control.getDistance() - coordSys.radius,
        center: control.getCenter(),
        from: self2.uid,
        globeId: globeModel.id
      };
    }
    var control = this._control;
    control.setViewGL(coordSys.viewGL);
    var coord = viewControlModel.get("targetCoord");
    var alpha, beta;
    if (coord != null) {
      beta = coord[0] + 90;
      alpha = coord[1];
    }
    control.setFromViewControlModel(viewControlModel, {
      baseDistance: coordSys.radius,
      alpha,
      beta
    });
    control.off("update");
    control.on("update", function() {
      api.dispatchAction(makeAction());
    });
  },
  _displaceVertices: function(globeModel, api) {
    var displacementQuality = globeModel.get("displacementQuality");
    var showDebugWireframe = globeModel.get("debug.wireframe.show");
    var globe = globeModel.coordinateSystem;
    if (!globeModel.isDisplacementChanged() && displacementQuality === this._displacementQuality && showDebugWireframe === this._showDebugWireframe) {
      return;
    }
    this._displacementQuality = displacementQuality;
    this._showDebugWireframe = showDebugWireframe;
    var geometry = this._sphereGeometry;
    var widthSegments = {
      low: 100,
      medium: 200,
      high: 400,
      ultra: 800
    }[displacementQuality] || 200;
    var heightSegments = widthSegments / 2;
    if (geometry.widthSegments !== widthSegments || showDebugWireframe) {
      geometry.widthSegments = widthSegments;
      geometry.heightSegments = heightSegments;
      geometry.build();
    }
    this._doDisplaceVertices(geometry, globe);
    if (showDebugWireframe) {
      geometry.generateBarycentric();
    }
  },
  _doDisplaceVertices: function(geometry, globe) {
    var positionArr = geometry.attributes.position.value;
    var uvArr = geometry.attributes.texcoord0.value;
    var originalPositionArr = geometry.__originalPosition;
    if (!originalPositionArr || originalPositionArr.length !== positionArr.length) {
      originalPositionArr = new Float32Array(positionArr.length);
      originalPositionArr.set(positionArr);
      geometry.__originalPosition = originalPositionArr;
    }
    var width = globe.displacementWidth;
    var height = globe.displacementHeight;
    var data = globe.displacementData;
    for (var i = 0; i < geometry.vertexCount; i++) {
      var i3 = i * 3;
      var i2 = i * 2;
      var x = originalPositionArr[i3 + 1];
      var y = originalPositionArr[i3 + 2];
      var z = originalPositionArr[i3 + 3];
      var u = uvArr[i2++];
      var v = uvArr[i2++];
      var j = Math.round(u * (width - 1));
      var k = Math.round(v * (height - 1));
      var idx = k * width + j;
      var scale = data ? data[idx] : 0;
      positionArr[i3 + 1] = x + x * scale;
      positionArr[i3 + 2] = y + y * scale;
      positionArr[i3 + 3] = z + z * scale;
    }
    geometry.generateVertexNormals();
    geometry.dirty();
    geometry.updateBoundingBox();
  },
  _updateLight: function(globeModel, api) {
    var earthMesh = this._earthMesh;
    this._sceneHelper.updateLight(globeModel);
    var mainLight = this._sceneHelper.mainLight;
    var time = globeModel.get("light.main.time") || /* @__PURE__ */ new Date();
    var pos = SunCalc.getPosition(parseDate(time), 0, 0);
    var r0 = Math.cos(pos.altitude);
    mainLight.position.y = -r0 * Math.cos(pos.azimuth);
    mainLight.position.x = Math.sin(pos.altitude);
    mainLight.position.z = r0 * Math.sin(pos.azimuth);
    mainLight.lookAt(earthMesh.getWorldPosition());
  },
  dispose: function(ecModel, api) {
    this.groupGL.removeAll();
    this._control.dispose();
  }
});
var vec3$9 = glmatrix.vec3;
function Globe(radius) {
  this.radius = radius;
  this.viewGL = null;
  this.altitudeAxis;
  this.displacementData = null;
  this.displacementWidth;
  this.displacementHeight;
}
Globe.prototype = {
  constructor: Globe,
  dimensions: ["lng", "lat", "alt"],
  type: "globe",
  containPoint: function() {
  },
  setDisplacementData: function(data, width, height) {
    this.displacementData = data;
    this.displacementWidth = width;
    this.displacementHeight = height;
  },
  _getDisplacementScale: function(lng, lat) {
    var i = (lng + 180) / 360 * (this.displacementWidth - 1);
    var j = (90 - lat) / 180 * (this.displacementHeight - 1);
    var idx = Math.round(i) + Math.round(j) * this.displacementWidth;
    return this.displacementData[idx];
  },
  dataToPoint: function(data, out) {
    var lng = data[0];
    var lat = data[1];
    var altVal = data[2] || 0;
    var r = this.radius;
    if (this.displacementData) {
      r *= 1 + this._getDisplacementScale(lng, lat);
    }
    if (this.altitudeAxis) {
      r += this.altitudeAxis.dataToCoord(altVal);
    }
    lng = lng * Math.PI / 180;
    lat = lat * Math.PI / 180;
    var r0 = Math.cos(lat) * r;
    out = out || [];
    out[0] = -r0 * Math.cos(lng + Math.PI);
    out[1] = Math.sin(lat) * r;
    out[2] = r0 * Math.sin(lng + Math.PI);
    return out;
  },
  pointToData: function(point, out) {
    var x = point[0];
    var y = point[1];
    var z = point[2];
    var len = vec3$9.len(point);
    x /= len;
    y /= len;
    z /= len;
    var theta = Math.asin(y);
    var phi = Math.atan2(z, -x);
    if (phi < 0) {
      phi = Math.PI * 2 + phi;
    }
    var lat = theta * 180 / Math.PI;
    var lng = phi * 180 / Math.PI - 180;
    out = out || [];
    out[0] = lng;
    out[1] = lat;
    out[2] = len - this.radius;
    if (this.altitudeAxis) {
      out[2] = this.altitudeAxis.coordToData(out[2]);
    }
    return out;
  }
};
function getDisplacementData(img, displacementScale) {
  var canvas = document.createElement("canvas");
  var ctx = canvas.getContext("2d");
  var width = img.width;
  var height = img.height;
  canvas.width = width;
  canvas.height = height;
  ctx.drawImage(img, 0, 0, width, height);
  var rgbaArr = ctx.getImageData(0, 0, width, height).data;
  var displacementArr = new Float32Array(rgbaArr.length / 4);
  for (var i = 0; i < rgbaArr.length / 4; i++) {
    var x = rgbaArr[i * 4];
    displacementArr[i] = x / 255 * displacementScale;
  }
  return {
    data: displacementArr,
    width,
    height
  };
}
function resizeGlobe(globeModel, api) {
  var boxLayoutOption = globeModel.getBoxLayoutParams();
  var viewport = getLayoutRect(boxLayoutOption, {
    width: api.getWidth(),
    height: api.getHeight()
  });
  viewport.y = api.getHeight() - viewport.y - viewport.height;
  this.viewGL.setViewport(viewport.x, viewport.y, viewport.width, viewport.height, api.getDevicePixelRatio());
  this.radius = globeModel.get("globeRadius");
  var outerRadius = globeModel.get("globeOuterRadius");
  if (this.altitudeAxis) {
    this.altitudeAxis.setExtent(0, outerRadius - this.radius);
  }
}
function updateGlobe(ecModel, api) {
  var altitudeDataExtent = [Infinity, -Infinity];
  ecModel.eachSeries(function(seriesModel) {
    if (seriesModel.coordinateSystem !== this) {
      return;
    }
    var data = seriesModel.getData();
    var altDims = seriesModel.coordDimToDataDim("alt");
    var altDim = altDims && altDims[0];
    if (altDim) {
      var dataExtent = data.getDataExtent(altDim, true);
      altitudeDataExtent[0] = Math.min(altitudeDataExtent[0], dataExtent[0]);
      altitudeDataExtent[1] = Math.max(altitudeDataExtent[1], dataExtent[1]);
    }
  }, this);
  if (altitudeDataExtent && isFinite(altitudeDataExtent[1] - altitudeDataExtent[0])) {
    var scale = createScale(altitudeDataExtent, {
      type: "value",
      // PENDING
      min: "dataMin",
      max: "dataMax"
    });
    this.altitudeAxis = new Axis("altitude", scale);
    this.resize(this.model, api);
  }
}
var globeCreator = {
  dimensions: Globe.prototype.dimensions,
  create: function(ecModel, api) {
    var globeList = [];
    ecModel.eachComponent("globe", function(globeModel) {
      globeModel.__viewGL = globeModel.__viewGL || new ViewGL();
      var globe = new Globe();
      globe.viewGL = globeModel.__viewGL;
      globeModel.coordinateSystem = globe;
      globe.model = globeModel;
      globeList.push(globe);
      globe.resize = resizeGlobe;
      globe.resize(globeModel, api);
      globe.update = updateGlobe;
    });
    ecModel.eachSeries(function(seriesModel) {
      if (seriesModel.get("coordinateSystem") === "globe") {
        var globeModel = seriesModel.getReferringComponents("globe").models[0];
        if (!globeModel) {
          globeModel = ecModel.getComponent("globe");
        }
        if (!globeModel) {
          throw new Error('globe "' + retrieve.firstNotNull(seriesModel.get("globe3DIndex"), seriesModel.get("globe3DId"), 0) + '" not found');
        }
        var coordSys = globeModel.coordinateSystem;
        seriesModel.coordinateSystem = coordSys;
      }
    });
    ecModel.eachComponent("globe", function(globeModel, idx) {
      var globe = globeModel.coordinateSystem;
      var displacementTextureValue = globeModel.getDisplacementTexture();
      var displacementScale = globeModel.getDisplacemenScale();
      if (globeModel.isDisplacementChanged()) {
        if (globeModel.hasDisplacement()) {
          var immediateLoaded = true;
          graphicGL.loadTexture(displacementTextureValue, api, function(texture) {
            var img = texture.image;
            var displacementData = getDisplacementData(img, displacementScale);
            globeModel.setDisplacementData(displacementData.data, displacementData.width, displacementData.height);
            if (!immediateLoaded) {
              api.dispatchAction({
                type: "globeUpdateDisplacment"
              });
            }
          });
          immediateLoaded = false;
        } else {
          globe.setDisplacementData(null, 0, 0);
        }
        globe.setDisplacementData(globeModel.displacementData, globeModel.displacementWidth, globeModel.displacementHeight);
      }
    });
    return globeList;
  }
};
function install$d(registers) {
  registers.registerComponentModel(GlobeModel);
  registers.registerComponentView(GlobeView);
  registers.registerCoordinateSystem("globe", globeCreator);
  registers.registerAction({
    type: "globeChangeCamera",
    event: "globecamerachanged",
    update: "series:updateCamera"
  }, function(payload, ecModel) {
    ecModel.eachComponent({
      mainType: "globe",
      query: payload
    }, function(componentModel) {
      componentModel.setView(payload);
    });
  });
  registers.registerAction({
    type: "globeUpdateDisplacment",
    event: "globedisplacementupdated",
    update: "update"
  }, function(payload, ecModel) {
  });
}
use(install$d);
var MAPBOX_CAMERA_OPTION = ["zoom", "center", "pitch", "bearing"];
var Mapbox3DModel = ComponentModel.extend({
  type: "mapbox3D",
  layoutMode: "box",
  coordinateSystem: null,
  defaultOption: {
    zlevel: -10,
    style: "mapbox://styles/mapbox/light-v9",
    center: [0, 0],
    zoom: 0,
    pitch: 0,
    bearing: 0,
    light: {
      main: {
        alpha: 20,
        beta: 30
      }
    },
    altitudeScale: 1,
    // Default depend on altitudeScale
    boxHeight: "auto"
  },
  getMapboxCameraOption: function() {
    var self2 = this;
    return MAPBOX_CAMERA_OPTION.reduce(function(obj, key) {
      obj[key] = self2.get(key);
      return obj;
    }, {});
  },
  setMapboxCameraOption: function(option) {
    if (option != null) {
      MAPBOX_CAMERA_OPTION.forEach(function(key) {
        if (option[key] != null) {
          this.option[key] = option[key];
        }
      }, this);
    }
  },
  /**
   * Get mapbox instance
   */
  getMapbox: function() {
    return this._mapbox;
  },
  setMapbox: function(mapbox) {
    this._mapbox = mapbox;
  }
});
merge(Mapbox3DModel.prototype, componentPostEffectMixin);
merge(Mapbox3DModel.prototype, componentLightMixin);
function Mapbox3DLayer(id, zr) {
  this.id = id;
  this.zr = zr;
  this.dom = document.createElement("div");
  this.dom.style.cssText = "position:absolute;left:0;right:0;top:0;bottom:0;";
  if (!mapboxgl) {
    throw new Error("Mapbox GL library must be included. See https://www.mapbox.com/mapbox-gl-js/api/");
  }
  this._mapbox = new mapboxgl.Map({
    container: this.dom
  });
  this._initEvents();
}
Mapbox3DLayer.prototype.setUnpainted = function() {
};
Mapbox3DLayer.prototype.resize = function() {
  this._mapbox.resize();
};
Mapbox3DLayer.prototype.getMapbox = function() {
  return this._mapbox;
};
Mapbox3DLayer.prototype.clear = function() {
};
Mapbox3DLayer.prototype.refresh = function() {
  this._mapbox.resize();
};
var EVENTS$1 = ["mousedown", "mouseup", "click", "dblclick", "mousemove", "mousewheel", "wheel", "touchstart", "touchend", "touchmove", "touchcancel"];
Mapbox3DLayer.prototype._initEvents = function() {
  var mapboxRoot = this._mapbox.getCanvasContainer();
  this._handlers = this._handlers || {
    contextmenu: function(e2) {
      e2.preventDefault();
      return false;
    }
  };
  EVENTS$1.forEach(function(eName) {
    this._handlers[eName] = function(e2) {
      var obj = {};
      for (var name in e2) {
        obj[name] = e2[name];
      }
      obj.bubbles = false;
      var newE = new e2.constructor(e2.type, obj);
      mapboxRoot.dispatchEvent(newE);
    };
    this.zr.dom.addEventListener(eName, this._handlers[eName]);
  }, this);
  this.zr.dom.addEventListener("contextmenu", this._handlers.contextmenu);
};
Mapbox3DLayer.prototype.dispose = function() {
  EVENTS$1.forEach(function(eName) {
    this.zr.dom.removeEventListener(eName, this._handlers[eName]);
  }, this);
};
const displayShadowGLSL = "\n@export ecgl.displayShadow.vertex\n\n@import ecgl.common.transformUniforms\n\n@import ecgl.common.uv.header\n\n@import ecgl.common.attributes\n\nvarying vec3 v_WorldPosition;\n\nvarying vec3 v_Normal;\n\nvoid main()\n{\n @import ecgl.common.uv.main\n v_Normal = normalize((worldInverseTranspose * vec4(normal, 0.0)).xyz);\n\n v_WorldPosition = (world * vec4(position, 1.0)).xyz;\n gl_Position = worldViewProjection * vec4(position, 1.0);\n}\n\n@end\n\n\n@export ecgl.displayShadow.fragment\n\n@import ecgl.common.uv.fragmentHeader\n\nvarying vec3 v_Normal;\nvarying vec3 v_WorldPosition;\n\nuniform float roughness: 0.2;\n\n#ifdef DIRECTIONAL_LIGHT_COUNT\n@import clay.header.directional_light\n#endif\n\n@import ecgl.common.ssaoMap.header\n\n@import clay.plugin.compute_shadow_map\n\nvoid main()\n{\n float shadow = 1.0;\n\n @import ecgl.common.ssaoMap.main\n\n#if defined(DIRECTIONAL_LIGHT_COUNT) && defined(DIRECTIONAL_LIGHT_SHADOWMAP_COUNT)\n float shadowContribsDir[DIRECTIONAL_LIGHT_COUNT];\n if(shadowEnabled)\n {\n computeShadowOfDirectionalLights(v_WorldPosition, shadowContribsDir);\n }\n for (int i = 0; i < DIRECTIONAL_LIGHT_COUNT; i++) {\n shadow = min(shadow, shadowContribsDir[i] * 0.5 + 0.5);\n }\n#endif\n\n shadow *= 0.5 + ao * 0.5;\n shadow = clamp(shadow, 0.0, 1.0);\n\n gl_FragColor = vec4(vec3(0.0), 1.0 - shadow);\n}\n\n@end";
graphicGL.Shader.import(displayShadowGLSL);
const Mapbox3DView = ComponentView.extend({
  type: "mapbox3D",
  __ecgl__: true,
  init: function(ecModel, api) {
    var zr = api.getZr();
    this._zrLayer = new Mapbox3DLayer("mapbox3D", zr);
    zr.painter.insertLayer(-1e3, this._zrLayer);
    this._lightRoot = new graphicGL.Node();
    this._sceneHelper = new SceneHelper(this._lightRoot);
    this._sceneHelper.initLight(this._lightRoot);
    var mapbox = this._zrLayer.getMapbox();
    var dispatchInteractAction = this._dispatchInteractAction.bind(this, api, mapbox);
    ["zoom", "rotate", "drag", "pitch", "rotate", "move"].forEach(function(eName) {
      mapbox.on(eName, dispatchInteractAction);
    });
    this._groundMesh = new graphicGL.Mesh({
      geometry: new graphicGL.PlaneGeometry(),
      material: new graphicGL.Material({
        shader: new graphicGL.Shader({
          vertex: graphicGL.Shader.source("ecgl.displayShadow.vertex"),
          fragment: graphicGL.Shader.source("ecgl.displayShadow.fragment")
        }),
        depthMask: false
      }),
      // Render first
      renderOrder: -100,
      culling: false,
      castShadow: false,
      $ignorePicking: true,
      renderNormal: true
    });
  },
  render: function(mapbox3DModel, ecModel, api) {
    var mapbox = this._zrLayer.getMapbox();
    var styleDesc = mapbox3DModel.get("style");
    var styleStr = JSON.stringify(styleDesc);
    if (styleStr !== this._oldStyleStr) {
      if (styleDesc) {
        mapbox.setStyle(styleDesc);
      }
    }
    this._oldStyleStr = styleStr;
    mapbox.setCenter(mapbox3DModel.get("center"));
    mapbox.setZoom(mapbox3DModel.get("zoom"));
    mapbox.setPitch(mapbox3DModel.get("pitch"));
    mapbox.setBearing(mapbox3DModel.get("bearing"));
    mapbox3DModel.setMapbox(mapbox);
    var coordSys = mapbox3DModel.coordinateSystem;
    coordSys.viewGL.scene.add(this._lightRoot);
    coordSys.viewGL.add(this._groundMesh);
    this._updateGroundMesh();
    this._sceneHelper.setScene(coordSys.viewGL.scene);
    this._sceneHelper.updateLight(mapbox3DModel);
    coordSys.viewGL.setPostEffect(mapbox3DModel.getModel("postEffect"), api);
    coordSys.viewGL.setTemporalSuperSampling(mapbox3DModel.getModel("temporalSuperSampling"));
    this._mapbox3DModel = mapbox3DModel;
  },
  afterRender: function(mapbox3DModel, ecModel, api, layerGL) {
    var renderer = layerGL.renderer;
    this._sceneHelper.updateAmbientCubemap(renderer, mapbox3DModel, api);
    this._sceneHelper.updateSkybox(renderer, mapbox3DModel, api);
    mapbox3DModel.coordinateSystem.viewGL.scene.traverse(function(mesh2) {
      if (mesh2.material) {
        mesh2.material.define("fragment", "NORMAL_UP_AXIS", 2);
        mesh2.material.define("fragment", "NORMAL_FRONT_AXIS", 1);
      }
    });
  },
  updateCamera: function(mapbox3DModel, ecModel, api, payload) {
    mapbox3DModel.coordinateSystem.setCameraOption(payload);
    this._updateGroundMesh();
    api.getZr().refresh();
  },
  _dispatchInteractAction: function(api, mapbox, mapbox3DModel) {
    api.dispatchAction({
      type: "mapbox3DChangeCamera",
      pitch: mapbox.getPitch(),
      zoom: mapbox.getZoom(),
      center: mapbox.getCenter().toArray(),
      bearing: mapbox.getBearing(),
      mapbox3DId: this._mapbox3DModel && this._mapbox3DModel.id
    });
  },
  _updateGroundMesh: function() {
    if (this._mapbox3DModel) {
      var coordSys = this._mapbox3DModel.coordinateSystem;
      var pt = coordSys.dataToPoint(coordSys.center);
      this._groundMesh.position.set(pt[0], pt[1], -1e-3);
      var plane = new graphicGL.Plane(new graphicGL.Vector3(0, 0, 1), 0);
      var ray1 = coordSys.viewGL.camera.castRay(new graphicGL.Vector2(-1, -1));
      var ray2 = coordSys.viewGL.camera.castRay(new graphicGL.Vector2(1, 1));
      var pos0 = ray1.intersectPlane(plane);
      var pos1 = ray2.intersectPlane(plane);
      var scale = pos0.dist(pos1) / coordSys.viewGL.rootNode.scale.x;
      this._groundMesh.scale.set(scale, scale, 1);
    }
  },
  dispose: function(ecModel, api) {
    if (this._zrLayer) {
      this._zrLayer.dispose();
    }
    api.getZr().painter.delLayer(-1e3);
  }
});
var mat4 = glmatrix.mat4;
var TILE_SIZE = 512;
var FOV = 0.6435011087932844;
var PI = Math.PI;
var WORLD_SCALE = 1 / 10;
function MapServiceCoordSys3D() {
  this.width = 0;
  this.height = 0;
  this.altitudeScale = 1;
  this.boxHeight = "auto";
  this.altitudeExtent;
  this.bearing = 0;
  this.pitch = 0;
  this.center = [0, 0];
  this._origin;
  this.zoom = 0;
  this._initialZoom;
  this.maxPitch = 60;
  this.zoomOffset = 0;
}
MapServiceCoordSys3D.prototype = {
  constructor: MapServiceCoordSys3D,
  dimensions: ["lng", "lat", "alt"],
  containPoint: function() {
  },
  setCameraOption: function(option) {
    this.bearing = option.bearing;
    this.pitch = option.pitch;
    this.center = option.center;
    this.zoom = option.zoom;
    if (!this._origin) {
      this._origin = this.projectOnTileWithScale(this.center, TILE_SIZE);
    }
    if (this._initialZoom == null) {
      this._initialZoom = this.zoom;
    }
    this.updateTransform();
  },
  // https://github.com/mapbox/mapbox-gl-js/blob/master/src/geo/transform.js#L479
  updateTransform: function() {
    if (!this.height) {
      return;
    }
    var cameraToCenterDistance = 0.5 / Math.tan(FOV / 2) * this.height * WORLD_SCALE;
    var pitch = Math.max(Math.min(this.pitch, this.maxPitch), 0) / 180 * Math.PI;
    var halfFov = FOV / 2;
    var groundAngle = Math.PI / 2 + pitch;
    var topHalfSurfaceDistance = Math.sin(halfFov) * cameraToCenterDistance / Math.sin(Math.PI - groundAngle - halfFov);
    var furthestDistance = Math.cos(Math.PI / 2 - pitch) * topHalfSurfaceDistance + cameraToCenterDistance;
    var farZ = furthestDistance * 1.1;
    if (this.pitch > 50) {
      farZ = 1e3;
    }
    var m = [];
    mat4.perspective(m, FOV, this.width / this.height, 1, farZ);
    this.viewGL.camera.projectionMatrix.setArray(m);
    this.viewGL.camera.decomposeProjectionMatrix();
    var m = mat4.identity([]);
    var pt = this.dataToPoint(this.center);
    mat4.scale(m, m, [1, -1, 1]);
    mat4.translate(m, m, [0, 0, -cameraToCenterDistance]);
    mat4.rotateX(m, m, pitch);
    mat4.rotateZ(m, m, -this.bearing / 180 * Math.PI);
    mat4.translate(m, m, [-pt[0] * this.getScale() * WORLD_SCALE, -pt[1] * this.getScale() * WORLD_SCALE, 0]);
    this.viewGL.camera.viewMatrix.array = m;
    var invertM = [];
    mat4.invert(invertM, m);
    this.viewGL.camera.worldTransform.array = invertM;
    this.viewGL.camera.decomposeWorldTransform();
    var worldSize = TILE_SIZE * this.getScale();
    var verticalScale;
    if (this.altitudeExtent && !isNaN(this.boxHeight)) {
      var range = this.altitudeExtent[1] - this.altitudeExtent[0];
      verticalScale = this.boxHeight / range * this.getScale() / Math.pow(2, this._initialZoom - this.zoomOffset);
    } else {
      verticalScale = worldSize / (2 * Math.PI * 6378e3 * Math.abs(Math.cos(this.center[1] * (Math.PI / 180)))) * this.altitudeScale * WORLD_SCALE;
    }
    this.viewGL.rootNode.scale.set(this.getScale() * WORLD_SCALE, this.getScale() * WORLD_SCALE, verticalScale);
  },
  getScale: function() {
    return Math.pow(2, this.zoom - this.zoomOffset);
  },
  projectOnTile: function(data, out) {
    return this.projectOnTileWithScale(data, this.getScale() * TILE_SIZE, out);
  },
  projectOnTileWithScale: function(data, scale, out) {
    var lng = data[0];
    var lat = data[1];
    var lambda2 = lng * PI / 180;
    var phi2 = lat * PI / 180;
    var x = scale * (lambda2 + PI) / (2 * PI);
    var y = scale * (PI - Math.log(Math.tan(PI / 4 + phi2 * 0.5))) / (2 * PI);
    out = out || [];
    out[0] = x;
    out[1] = y;
    return out;
  },
  unprojectFromTile: function(point, out) {
    return this.unprojectOnTileWithScale(point, this.getScale() * TILE_SIZE, out);
  },
  unprojectOnTileWithScale: function(point, scale, out) {
    var x = point[0];
    var y = point[1];
    var lambda2 = x / scale * (2 * PI) - PI;
    var phi2 = 2 * (Math.atan(Math.exp(PI - y / scale * (2 * PI))) - PI / 4);
    out = out || [];
    out[0] = lambda2 * 180 / PI;
    out[1] = phi2 * 180 / PI;
    return out;
  },
  dataToPoint: function(data, out) {
    out = this.projectOnTileWithScale(data, TILE_SIZE, out);
    out[0] -= this._origin[0];
    out[1] -= this._origin[1];
    out[2] = !isNaN(data[2]) ? data[2] : 0;
    if (!isNaN(data[2])) {
      out[2] = data[2];
      if (this.altitudeExtent) {
        out[2] -= this.altitudeExtent[0];
      }
    }
    return out;
  }
};
function Mapbox3D() {
  MapServiceCoordSys3D.apply(this, arguments);
}
Mapbox3D.prototype = new MapServiceCoordSys3D();
Mapbox3D.prototype.constructor = Mapbox3D;
Mapbox3D.prototype.type = "mapbox3D";
function createMapService3DCreator(serviceComponentType, ServiceCtor, afterCreate) {
  function resizeMapService3D(mapService3DModel, api) {
    var width = api.getWidth();
    var height = api.getHeight();
    var dpr = api.getDevicePixelRatio();
    this.viewGL.setViewport(0, 0, width, height, dpr);
    this.width = width;
    this.height = height;
    this.altitudeScale = mapService3DModel.get("altitudeScale");
    this.boxHeight = mapService3DModel.get("boxHeight");
  }
  function updateService3D(ecModel, api) {
    if (this.model.get("boxHeight") === "auto") {
      return;
    }
    var altitudeDataExtent = [Infinity, -Infinity];
    ecModel.eachSeries(function(seriesModel) {
      if (seriesModel.coordinateSystem !== this) {
        return;
      }
      var data = seriesModel.getData();
      var altDim = seriesModel.coordDimToDataDim("alt")[0];
      if (altDim) {
        var dataExtent = data.getDataExtent(altDim, true);
        altitudeDataExtent[0] = Math.min(altitudeDataExtent[0], dataExtent[0]);
        altitudeDataExtent[1] = Math.max(altitudeDataExtent[1], dataExtent[1]);
      }
    }, this);
    if (altitudeDataExtent && isFinite(altitudeDataExtent[1] - altitudeDataExtent[0])) {
      this.altitudeExtent = altitudeDataExtent;
    }
  }
  return {
    dimensions: ServiceCtor.prototype.dimensions,
    create: function(ecModel, api) {
      var mapService3DList = [];
      ecModel.eachComponent(serviceComponentType, function(mapService3DModel) {
        var viewGL = mapService3DModel.__viewGL;
        if (!viewGL) {
          viewGL = mapService3DModel.__viewGL = new ViewGL();
          viewGL.setRootNode(new graphicGL.Node());
        }
        var mapService3DCoordSys = new ServiceCtor();
        mapService3DCoordSys.viewGL = mapService3DModel.__viewGL;
        mapService3DCoordSys.resize = resizeMapService3D;
        mapService3DCoordSys.resize(mapService3DModel, api);
        mapService3DList.push(mapService3DCoordSys);
        mapService3DModel.coordinateSystem = mapService3DCoordSys;
        mapService3DCoordSys.model = mapService3DModel;
        mapService3DCoordSys.update = updateService3D;
      });
      ecModel.eachSeries(function(seriesModel) {
        if (seriesModel.get("coordinateSystem") === serviceComponentType) {
          var mapService3DModel = seriesModel.getReferringComponents(serviceComponentType).models[0];
          if (!mapService3DModel) {
            mapService3DModel = ecModel.getComponent(serviceComponentType);
          }
          if (!mapService3DModel) {
            throw new Error(serviceComponentType + ' "' + retrieve.firstNotNull(seriesModel.get(serviceComponentType + "Index"), seriesModel.get(serviceComponentType + "Id"), 0) + '" not found');
          }
          seriesModel.coordinateSystem = mapService3DModel.coordinateSystem;
        }
      });
      afterCreate && afterCreate(mapService3DList, ecModel, api);
      return mapService3DList;
    }
  };
}
var mapbox3DCreator = createMapService3DCreator("mapbox3D", Mapbox3D, function(mapbox3DList) {
  mapbox3DList.forEach(function(mapbox3D) {
    mapbox3D.setCameraOption(mapbox3D.model.getMapboxCameraOption());
  });
});
function install$c(registers) {
  registers.registerComponentModel(Mapbox3DModel);
  registers.registerComponentView(Mapbox3DView);
  registers.registerCoordinateSystem("mapbox3D", mapbox3DCreator);
  registers.registerAction({
    type: "mapbox3DChangeCamera",
    event: "mapbox3dcamerachanged",
    update: "mapbox3D:updateCamera"
  }, function(payload, ecModel) {
    ecModel.eachComponent({
      mainType: "mapbox3D",
      query: payload
    }, function(componentModel) {
      componentModel.setMapboxCameraOption(payload);
    });
  });
}
use(install$c);
var MAPTALKS_CAMERA_OPTION = ["zoom", "center", "pitch", "bearing"];
var Maptalks3DModel = ComponentModel.extend({
  type: "maptalks3D",
  layoutMode: "box",
  coordinateSystem: null,
  defaultOption: {
    zlevel: -10,
    urlTemplate: "http://{s}.basemaps.cartocdn.com/light_all/{z}/{x}/{y}.png",
    attribution: '&copy; <a href="http://osm.org">OpenStreetMap</a> contributors, &copy; <a href="https://carto.com/">CARTO</a>',
    center: [0, 0],
    zoom: 0,
    pitch: 0,
    bearing: 0,
    light: {
      main: {
        alpha: 20,
        beta: 30
      }
    },
    altitudeScale: 1,
    // Default depend on altitudeScale
    boxHeight: "auto"
  },
  getMaptalksCameraOption: function() {
    var self2 = this;
    return MAPTALKS_CAMERA_OPTION.reduce(function(obj, key) {
      obj[key] = self2.get(key);
      return obj;
    }, {});
  },
  setMaptalksCameraOption: function(option) {
    if (option != null) {
      MAPTALKS_CAMERA_OPTION.forEach(function(key) {
        if (option[key] != null) {
          this.option[key] = option[key];
        }
      }, this);
    }
  },
  /**
   * Get maptalks instance
   */
  getMaptalks: function() {
    return this._maptalks;
  },
  setMaptalks: function(maptalks2) {
    this._maptalks = maptalks2;
  }
});
merge(Maptalks3DModel.prototype, componentPostEffectMixin);
merge(Maptalks3DModel.prototype, componentLightMixin);
function Maptalks3DLayer(id, zr, defaultCenter, defaultZoom) {
  this.id = id;
  this.zr = zr;
  this.dom = document.createElement("div");
  this.dom.style.cssText = "position:absolute;left:0;right:0;top:0;bottom:0;";
  if (!maptalks) {
    throw new Error("Maptalks library must be included. See https://maptalks.org");
  }
  this._maptalks = new maptalks.Map(this.dom, {
    center: defaultCenter,
    zoom: defaultZoom,
    doubleClickZoom: false,
    fog: false
    // fogColor: [0, 0, 0]
  });
  this._initEvents();
}
Maptalks3DLayer.prototype.setUnpainted = function() {
};
Maptalks3DLayer.prototype.resize = function() {
  this._maptalks.checkSize();
};
Maptalks3DLayer.prototype.getMaptalks = function() {
  return this._maptalks;
};
Maptalks3DLayer.prototype.clear = function() {
};
Maptalks3DLayer.prototype.refresh = function() {
  this._maptalks.checkSize();
};
var EVENTS = ["mousedown", "mouseup", "click", "dblclick", "mousemove", "mousewheel", "DOMMouseScroll", "touchstart", "touchend", "touchmove", "touchcancel"];
Maptalks3DLayer.prototype._initEvents = function() {
  var maptalksRoot = this.dom;
  this._handlers = this._handlers || {
    contextmenu: function(e2) {
      e2.preventDefault();
      return false;
    }
  };
  EVENTS.forEach(function(eName) {
    this._handlers[eName] = function(e2) {
      var obj = {};
      for (var name in e2) {
        obj[name] = e2[name];
      }
      obj.bubbles = false;
      var newE = new e2.constructor(e2.type, obj);
      if (eName === "mousewheel" || eName === "DOMMouseScroll") {
        maptalksRoot.dispatchEvent(newE);
      } else {
        maptalksRoot.firstElementChild.dispatchEvent(newE);
      }
    };
    this.zr.dom.addEventListener(eName, this._handlers[eName]);
  }, this);
  this.zr.dom.addEventListener("contextmenu", this._handlers.contextmenu);
};
Maptalks3DLayer.prototype.dispose = function() {
  EVENTS.forEach(function(eName) {
    this.zr.dom.removeEventListener(eName, this._handlers[eName]);
  }, this);
  this._maptalks.remove();
};
graphicGL.Shader.import(displayShadowGLSL);
const Maptalks3DView = ComponentView.extend({
  type: "maptalks3D",
  __ecgl__: true,
  init: function(ecModel, api) {
    this._groundMesh = new graphicGL.Mesh({
      geometry: new graphicGL.PlaneGeometry(),
      material: new graphicGL.Material({
        shader: new graphicGL.Shader({
          vertex: graphicGL.Shader.source("ecgl.displayShadow.vertex"),
          fragment: graphicGL.Shader.source("ecgl.displayShadow.fragment")
        }),
        depthMask: false
      }),
      // Render first
      renderOrder: -100,
      culling: false,
      castShadow: false,
      $ignorePicking: true,
      renderNormal: true
    });
  },
  _initMaptalksLayer: function(mapbox3DModel, api) {
    var zr = api.getZr();
    this._zrLayer = new Maptalks3DLayer("maptalks3D", zr, mapbox3DModel.get("center"), mapbox3DModel.get("zoom"));
    zr.painter.insertLayer(-1e3, this._zrLayer);
    this._lightRoot = new graphicGL.Node();
    this._sceneHelper = new SceneHelper(this._lightRoot);
    this._sceneHelper.initLight(this._lightRoot);
    var maptalks2 = this._zrLayer.getMaptalks();
    var dispatchInteractAction = this._dispatchInteractAction.bind(this, api, maptalks2);
    ["zoomend", "zooming", "zoomstart", "dragrotating", "pitch", "pitchend", "movestart", "moving", "moveend", "resize", "touchstart", "touchmove", "touchend", "animating"].forEach(function(eName) {
      maptalks2.on(eName, dispatchInteractAction);
    });
  },
  render: function(maptalks3DModel, ecModel, api) {
    if (!this._zrLayer) {
      this._initMaptalksLayer(maptalks3DModel, api);
    }
    var mtks = this._zrLayer.getMaptalks();
    var urlTemplate = maptalks3DModel.get("urlTemplate");
    var baseLayer = mtks.getBaseLayer();
    if (urlTemplate !== this._oldUrlTemplate) {
      if (!baseLayer) {
        baseLayer = new maptalks.TileLayer("maptalks-echarts-gl-baselayer", {
          urlTemplate,
          // used sequentially to help with browser parallel requests per domain limitation
          subdomains: ["a", "b", "c"],
          attribution: maptalks3DModel.get("attribution")
        });
        mtks.setBaseLayer(baseLayer);
      } else {
        baseLayer.setOptions({
          urlTemplate,
          attribution: maptalks3DModel.get("attribution")
        });
      }
    }
    this._oldUrlTemplate = urlTemplate;
    mtks.setCenter(maptalks3DModel.get("center"));
    mtks.setZoom(maptalks3DModel.get("zoom"), {
      animation: false
    });
    mtks.setPitch(maptalks3DModel.get("pitch"));
    mtks.setBearing(maptalks3DModel.get("bearing"));
    maptalks3DModel.setMaptalks(mtks);
    var coordSys = maptalks3DModel.coordinateSystem;
    coordSys.viewGL.scene.add(this._lightRoot);
    coordSys.viewGL.add(this._groundMesh);
    this._updateGroundMesh();
    this._sceneHelper.setScene(coordSys.viewGL.scene);
    this._sceneHelper.updateLight(maptalks3DModel);
    coordSys.viewGL.setPostEffect(maptalks3DModel.getModel("postEffect"), api);
    coordSys.viewGL.setTemporalSuperSampling(maptalks3DModel.getModel("temporalSuperSampling"));
    this._maptalks3DModel = maptalks3DModel;
  },
  afterRender: function(maptalks3DModel, ecModel, api, layerGL) {
    var renderer = layerGL.renderer;
    this._sceneHelper.updateAmbientCubemap(renderer, maptalks3DModel, api);
    this._sceneHelper.updateSkybox(renderer, maptalks3DModel, api);
    maptalks3DModel.coordinateSystem.viewGL.scene.traverse(function(mesh2) {
      if (mesh2.material) {
        mesh2.material.define("fragment", "NORMAL_UP_AXIS", 2);
        mesh2.material.define("fragment", "NORMAL_FRONT_AXIS", 1);
      }
    });
  },
  updateCamera: function(maptalks3DModel, ecModel, api, payload) {
    maptalks3DModel.coordinateSystem.setCameraOption(payload);
    this._updateGroundMesh();
    api.getZr().refresh();
  },
  _dispatchInteractAction: function(api, maptalks2, maptalks3DModel) {
    api.dispatchAction({
      type: "maptalks3DChangeCamera",
      pitch: maptalks2.getPitch(),
      zoom: getMapboxZoom(maptalks2.getResolution()) + 1,
      center: maptalks2.getCenter().toArray(),
      bearing: maptalks2.getBearing(),
      maptalks3DId: this._maptalks3DModel && this._maptalks3DModel.id
    });
  },
  _updateGroundMesh: function() {
    if (this._maptalks3DModel) {
      var coordSys = this._maptalks3DModel.coordinateSystem;
      var pt = coordSys.dataToPoint(coordSys.center);
      this._groundMesh.position.set(pt[0], pt[1], -1e-3);
      var plane = new graphicGL.Plane(new graphicGL.Vector3(0, 0, 1), 0);
      var ray1 = coordSys.viewGL.camera.castRay(new graphicGL.Vector2(-1, -1));
      var ray2 = coordSys.viewGL.camera.castRay(new graphicGL.Vector2(1, 1));
      var pos0 = ray1.intersectPlane(plane);
      var pos1 = ray2.intersectPlane(plane);
      var scale = pos0.dist(pos1) / coordSys.viewGL.rootNode.scale.x;
      this._groundMesh.scale.set(scale, scale, 1);
    }
  },
  dispose: function(ecModel, api) {
    if (this._zrLayer) {
      this._zrLayer.dispose();
    }
    api.getZr().painter.delLayer(-1e3);
  }
});
const MAX_RES = 2 * 6378137 * Math.PI / (256 * Math.pow(2, 20));
function getMapboxZoom(res) {
  return 19 - Math.log(res / MAX_RES) / Math.LN2;
}
function Maptalks3D() {
  MapServiceCoordSys3D.apply(this, arguments);
  this.maxPitch = 85;
  this.zoomOffset = 1;
}
Maptalks3D.prototype = new MapServiceCoordSys3D();
Maptalks3D.prototype.constructor = Maptalks3D;
Maptalks3D.prototype.type = "maptalks3D";
var maptalks3DCreator = createMapService3DCreator("maptalks3D", Maptalks3D, function(maptalks3DList) {
  maptalks3DList.forEach(function(maptalks3D) {
    maptalks3D.setCameraOption(maptalks3D.model.getMaptalksCameraOption());
  });
});
function install$b(registers) {
  registers.registerComponentModel(Maptalks3DModel);
  registers.registerComponentView(Maptalks3DView);
  registers.registerCoordinateSystem("maptalks3D", maptalks3DCreator);
  registers.registerAction({
    type: "maptalks3DChangeCamera",
    event: "maptalks3dcamerachanged",
    update: "maptalks3D:updateCamera"
  }, function(payload, ecModel) {
    ecModel.eachComponent({
      mainType: "maptalks3D",
      query: payload
    }, function(componentModel) {
      componentModel.setMaptalksCameraOption(payload);
    });
  });
}
use(install$b);
var vec3$8 = glmatrix.vec3;
var isDimensionStacked$1 = dataStack.isDimensionStacked;
function ifCrossZero(extent) {
  var min = extent[0];
  var max = extent[1];
  return !(min > 0 && max > 0 || min < 0 && max < 0);
}
function cartesian3DLayout(seriesModel, coordSys) {
  var data = seriesModel.getData();
  var barSize = seriesModel.get("barSize");
  if (barSize == null) {
    var size = coordSys.size;
    var barWidth;
    var barDepth;
    var xAxis = coordSys.getAxis("x");
    var yAxis = coordSys.getAxis("y");
    if (xAxis.type === "category") {
      barWidth = xAxis.getBandWidth() * 0.7;
    } else {
      barWidth = Math.round(size[0] / Math.sqrt(data.count())) * 0.6;
    }
    if (yAxis.type === "category") {
      barDepth = yAxis.getBandWidth() * 0.7;
    } else {
      barDepth = Math.round(size[1] / Math.sqrt(data.count())) * 0.6;
    }
    barSize = [barWidth, barDepth];
  } else if (!isArray(barSize)) {
    barSize = [barSize, barSize];
  }
  var zAxisExtent = coordSys.getAxis("z").scale.getExtent();
  var ifZAxisCrossZero = ifCrossZero(zAxisExtent);
  var dims = ["x", "y", "z"].map(function(coordDimName) {
    return seriesModel.coordDimToDataDim(coordDimName)[0];
  });
  var isStacked = isDimensionStacked$1(data, dims[2]);
  var valueDim = isStacked ? data.getCalculationInfo("stackResultDimension") : dims[2];
  data.each(dims, function(x, y, z, idx) {
    var stackedValue = data.get(valueDim, idx);
    var baseValue = isStacked ? stackedValue - z : ifZAxisCrossZero ? 0 : zAxisExtent[0];
    var start = coordSys.dataToPoint([x, y, baseValue]);
    var end = coordSys.dataToPoint([x, y, stackedValue]);
    var height = vec3$8.dist(start, end);
    var dir = [0, end[1] < start[1] ? -1 : 1, 0];
    if (Math.abs(height) === 0) {
      height = 0.1;
    }
    var size2 = [barSize[0], height, barSize[1]];
    data.setItemLayout(idx, [start, dir, size2]);
  });
  data.setLayout("orient", [1, 0, 0]);
}
function evaluateBarSparseness(data, dimX, dimY) {
  var xExtent = data.getDataExtent(dimX);
  var yExtent = data.getDataExtent(dimY);
  var xSpan = xExtent[1] - xExtent[0] || xExtent[0];
  var ySpan = yExtent[1] - yExtent[0] || yExtent[0];
  var dimSize = 50;
  var tmp = new Uint8Array(dimSize * dimSize);
  for (var i = 0; i < data.count(); i++) {
    var x = data.get(dimX, i);
    var y = data.get(dimY, i);
    var xIdx = Math.floor((x - xExtent[0]) / xSpan * (dimSize - 1));
    var yIdx = Math.floor((y - yExtent[0]) / ySpan * (dimSize - 1));
    var idx = yIdx * dimSize + xIdx;
    tmp[idx] = tmp[idx] || 1;
  }
  var filledCount = 0;
  for (var i = 0; i < tmp.length; i++) {
    if (tmp[i]) {
      filledCount++;
    }
  }
  return filledCount / tmp.length;
}
var vec3$7 = glmatrix.vec3;
var isDimensionStacked = dataStack.isDimensionStacked;
function globeLayout(seriesModel, coordSys) {
  var data = seriesModel.getData();
  var barMinHeight = seriesModel.get("minHeight") || 0;
  var barSize = seriesModel.get("barSize");
  var dims = ["lng", "lat", "alt"].map(function(coordDimName) {
    return seriesModel.coordDimToDataDim(coordDimName)[0];
  });
  if (barSize == null) {
    var perimeter = coordSys.radius * Math.PI;
    var fillRatio = evaluateBarSparseness(data, dims[0], dims[1]);
    barSize = [perimeter / Math.sqrt(data.count() / fillRatio), perimeter / Math.sqrt(data.count() / fillRatio)];
  } else if (!isArray(barSize)) {
    barSize = [barSize, barSize];
  }
  var valueDim = getValueDimension(data, dims);
  data.each(dims, function(lng, lat, val, idx) {
    var stackedValue = data.get(valueDim.dimension, idx);
    var baseValue = valueDim.isStacked ? stackedValue - val : coordSys.altitudeAxis.scale.getExtent()[0];
    var height = Math.max(coordSys.altitudeAxis.dataToCoord(val), barMinHeight);
    var start = coordSys.dataToPoint([lng, lat, baseValue]);
    var end = coordSys.dataToPoint([lng, lat, stackedValue]);
    var dir = vec3$7.sub([], end, start);
    vec3$7.normalize(dir, dir);
    var size = [barSize[0], height, barSize[1]];
    data.setItemLayout(idx, [start, dir, size]);
  });
  data.setLayout("orient", Vector3.UP.array);
}
function geo3DLayout(seriesModel, coordSys) {
  var data = seriesModel.getData();
  var barSize = seriesModel.get("barSize");
  var barMinHeight = seriesModel.get("minHeight") || 0;
  var dims = ["lng", "lat", "alt"].map(function(coordDimName) {
    return seriesModel.coordDimToDataDim(coordDimName)[0];
  });
  if (barSize == null) {
    var size = Math.min(coordSys.size[0], coordSys.size[2]);
    var fillRatio = evaluateBarSparseness(data, dims[0], dims[1]);
    barSize = [size / Math.sqrt(data.count() / fillRatio), size / Math.sqrt(data.count() / fillRatio)];
  } else if (!isArray(barSize)) {
    barSize = [barSize, barSize];
  }
  var dir = [0, 1, 0];
  var valueDim = getValueDimension(data, dims);
  data.each(dims, function(lng, lat, val, idx) {
    var stackedValue = data.get(valueDim.dimension, idx);
    var baseValue = valueDim.isStacked ? stackedValue - val : coordSys.altitudeAxis.scale.getExtent()[0];
    var height = Math.max(coordSys.altitudeAxis.dataToCoord(val), barMinHeight);
    var start = coordSys.dataToPoint([lng, lat, baseValue]);
    var size2 = [barSize[0], height, barSize[1]];
    data.setItemLayout(idx, [start, dir, size2]);
  });
  data.setLayout("orient", [1, 0, 0]);
}
function mapService3DLayout(seriesModel, coordSys) {
  var data = seriesModel.getData();
  var dimLng = seriesModel.coordDimToDataDim("lng")[0];
  var dimLat = seriesModel.coordDimToDataDim("lat")[0];
  var dimAlt = seriesModel.coordDimToDataDim("alt")[0];
  var barSize = seriesModel.get("barSize");
  var barMinHeight = seriesModel.get("minHeight") || 0;
  if (barSize == null) {
    var xExtent = data.getDataExtent(dimLng);
    var yExtent = data.getDataExtent(dimLat);
    var corner0 = coordSys.dataToPoint([xExtent[0], yExtent[0]]);
    var corner1 = coordSys.dataToPoint([xExtent[1], yExtent[1]]);
    var size = Math.min(Math.abs(corner0[0] - corner1[0]), Math.abs(corner0[1] - corner1[1])) || 1;
    var fillRatio = evaluateBarSparseness(data, dimLng, dimLat);
    barSize = [size / Math.sqrt(data.count() / fillRatio), size / Math.sqrt(data.count() / fillRatio)];
  } else {
    if (!isArray(barSize)) {
      barSize = [barSize, barSize];
    }
    barSize[0] /= coordSys.getScale() / 16;
    barSize[1] /= coordSys.getScale() / 16;
  }
  var dir = [0, 0, 1];
  var dims = [dimLng, dimLat, dimAlt];
  var valueDim = getValueDimension(data, dims);
  data.each(dims, function(lng, lat, val, idx) {
    var stackedValue = data.get(valueDim.dimension, idx);
    var baseValue = valueDim.isStacked ? stackedValue - val : 0;
    var start = coordSys.dataToPoint([lng, lat, baseValue]);
    var end = coordSys.dataToPoint([lng, lat, stackedValue]);
    var height = Math.max(end[2] - start[2], barMinHeight);
    var size2 = [barSize[0], height, barSize[1]];
    data.setItemLayout(idx, [start, dir, size2]);
  });
  data.setLayout("orient", [1, 0, 0]);
}
function getValueDimension(data, dataDims) {
  var isStacked = isDimensionStacked(data, dataDims[2]);
  return {
    dimension: isStacked ? data.getCalculationInfo("stackResultDimension") : dataDims[2],
    isStacked
  };
}
function registerBarLayout(registers) {
  registers.registerLayout(function(ecModel, api) {
    ecModel.eachSeriesByType("bar3D", function(seriesModel) {
      var coordSys = seriesModel.coordinateSystem;
      var coordSysType = coordSys && coordSys.type;
      if (coordSysType === "globe") {
        globeLayout(seriesModel, coordSys);
      } else if (coordSysType === "cartesian3D") {
        cartesian3DLayout(seriesModel, coordSys);
      } else if (coordSysType === "geo3D") {
        geo3DLayout(seriesModel, coordSys);
      } else if (coordSysType === "mapbox3D" || coordSysType === "maptalks3D") {
        mapService3DLayout(seriesModel, coordSys);
      } else ;
    });
  });
}
var formatUtil = {};
formatUtil.getFormattedLabel = function(seriesModel, dataIndex, status, dataType, dimIndex) {
  status = status || "normal";
  var data = seriesModel.getData(dataType);
  var itemModel = data.getItemModel(dataIndex);
  var params = seriesModel.getDataParams(dataIndex, dataType);
  if (dimIndex != null && params.value instanceof Array) {
    params.value = params.value[dimIndex];
  }
  var formatter = itemModel.get(status === "normal" ? ["label", "formatter"] : ["emphasis", "label", "formatter"]);
  if (formatter == null) {
    formatter = itemModel.get(["label", "formatter"]);
  }
  var text;
  if (typeof formatter === "function") {
    params.status = status;
    text = formatter(params);
  } else if (typeof formatter === "string") {
    text = formatTpl(formatter, params);
  }
  return text;
};
formatUtil.normalizeToArray = function(value) {
  return value instanceof Array ? value : value == null ? [] : [value];
};
function otherDimToDataDim(data, otherDim2) {
  var dataDim = [];
  each(data.dimensions, function(dimName) {
    var dimItem = data.getDimensionInfo(dimName);
    var otherDims = dimItem.otherDims;
    var dimIndex = otherDims[otherDim2];
    if (dimIndex != null && dimIndex !== false) {
      dataDim[dimIndex] = dimItem.name;
    }
  });
  return dataDim;
}
function formatTooltip(seriesModel, dataIndex, multipleSeries) {
  function formatArrayValue(value2) {
    var result = [];
    var tooltipDims = otherDimToDataDim(data, "tooltip");
    tooltipDims.length ? each(tooltipDims, function(dimIdx) {
      setEachItem(data.get(dimIdx, dataIndex), dimIdx);
    }) : each(value2, setEachItem);
    function setEachItem(val, dimIdx) {
      var dimInfo = data.getDimensionInfo(dimIdx);
      if (!dimInfo || dimInfo.otherDims.tooltip === false) {
        return;
      }
      var dimType = dimInfo.type;
      var valStr = "- " + (dimInfo.tooltipName || dimInfo.name) + ": " + (dimType === "ordinal" ? val + "" : dimType === "time" ? formatTime("yyyy/MM/dd hh:mm:ss", val) : addCommas(val));
      valStr && result.push(encodeHTML(valStr));
    }
    return "<br/>" + result.join("<br/>");
  }
  var data = seriesModel.getData();
  var value = seriesModel.getRawValue(dataIndex);
  var formattedValue = isArray(value) ? formatArrayValue(value) : encodeHTML(addCommas(value));
  var name = data.getName(dataIndex);
  var color = getItemVisualColor(data, dataIndex);
  if (isObject(color) && color.colorStops) {
    color = (color.colorStops[0] || {}).color;
  }
  color = color || "transparent";
  var colorEl = getTooltipMarker(color);
  var seriesName = seriesModel.name;
  if (seriesName === "\0-") {
    seriesName = "";
  }
  seriesName = seriesName ? encodeHTML(seriesName) + "<br/>" : "";
  return true ? seriesName + colorEl + (name ? encodeHTML(name) + ": " + formattedValue : formattedValue) : colorEl + seriesName + formattedValue;
}
function createList(seriesModel, dims, source) {
  source = source || seriesModel.getSource();
  var coordSysDimensions = dims || getCoordinateSystemDimensions(seriesModel.get("coordinateSystem")) || ["x", "y", "z"];
  var dimensions = createDimensions(source, {
    dimensionsDefine: source.dimensionsDefine || seriesModel.get("dimensions"),
    encodeDefine: source.encodeDefine || seriesModel.get("encode"),
    coordDimensions: coordSysDimensions.map(function(dim) {
      var axis3DModel = seriesModel.getReferringComponents(dim + "Axis3D").models[0];
      return {
        type: axis3DModel && axis3DModel.get("type") === "category" ? "ordinal" : "float",
        name: dim
        // Find stackable dimension. Which will represent value.
        // stackable: dim === 'z'
      };
    })
  });
  if (seriesModel.get("coordinateSystem") === "cartesian3D") {
    dimensions.forEach(function(dimInfo) {
      if (coordSysDimensions.indexOf(dimInfo.coordDim) >= 0) {
        var axis3DModel = seriesModel.getReferringComponents(dimInfo.coordDim + "Axis3D").models[0];
        if (axis3DModel && axis3DModel.get("type") === "category") {
          dimInfo.ordinalMeta = axis3DModel.getOrdinalMeta();
        }
      }
    });
  }
  var stackCalculationInfo = dataStack.enableDataStack(
    // Only support 'z' and `byIndex` now.
    seriesModel,
    dimensions,
    {
      byIndex: true,
      stackedCoordDimension: "z"
    }
  );
  var data = new SeriesData(dimensions, seriesModel);
  data.setCalculationInfo(stackCalculationInfo);
  data.initData(source);
  return data;
}
var Bar3DSeries = SeriesModel.extend({
  type: "series.bar3D",
  dependencies: ["globe"],
  visualStyleAccessPathvisu: "itemStyle",
  getInitialData: function(option, ecModel) {
    return createList(this);
  },
  getFormattedLabel: function(dataIndex, status, dataType, dimIndex) {
    var text = formatUtil.getFormattedLabel(this, dataIndex, status, dataType, dimIndex);
    if (text == null) {
      text = this.getData().get("z", dataIndex);
    }
    return text;
  },
  formatTooltip: function(dataIndex) {
    return formatTooltip(this, dataIndex);
  },
  defaultOption: {
    coordinateSystem: "cartesian3D",
    globeIndex: 0,
    grid3DIndex: 0,
    zlevel: -10,
    // bevelSize, 0 has no bevel
    bevelSize: 0,
    // higher is smoother
    bevelSmoothness: 2,
    // Bar width and depth
    // barSize: [1, 1],
    // On grid plane when coordinateSystem is cartesian3D
    onGridPlane: "xy",
    // Shading of globe
    shading: "color",
    minHeight: 0,
    itemStyle: {
      opacity: 1
    },
    label: {
      show: false,
      distance: 2,
      textStyle: {
        fontSize: 14,
        color: "#000",
        backgroundColor: "rgba(255,255,255,0.7)",
        padding: 3,
        borderRadius: 3
      }
    },
    emphasis: {
      label: {
        show: true
      }
    },
    animationDurationUpdate: 500
  }
});
merge(Bar3DSeries.prototype, componentShadingMixin);
var vec3$6 = glmatrix.vec3;
var mat3 = glmatrix.mat3;
var BarsGeometry = Geometry.extend(
  function() {
    return {
      attributes: {
        position: new Geometry.Attribute("position", "float", 3, "POSITION"),
        normal: new Geometry.Attribute("normal", "float", 3, "NORMAL"),
        color: new Geometry.Attribute("color", "float", 4, "COLOR"),
        prevPosition: new Geometry.Attribute("prevPosition", "float", 3),
        prevNormal: new Geometry.Attribute("prevNormal", "float", 3)
      },
      dynamic: true,
      enableNormal: false,
      bevelSize: 1,
      bevelSegments: 0,
      // Map from vertexIndex to dataIndex.
      _dataIndices: null,
      _vertexOffset: 0,
      _triangleOffset: 0
    };
  },
  /** @lends module:echarts-gl/chart/bars/BarsGeometry.prototype */
  {
    resetOffset: function() {
      this._vertexOffset = 0;
      this._triangleOffset = 0;
    },
    setBarCount: function(barCount) {
      var enableNormal = this.enableNormal;
      var vertexCount = this.getBarVertexCount() * barCount;
      var triangleCount = this.getBarTriangleCount() * barCount;
      if (this.vertexCount !== vertexCount) {
        this.attributes.position.init(vertexCount);
        if (enableNormal) {
          this.attributes.normal.init(vertexCount);
        } else {
          this.attributes.normal.value = null;
        }
        this.attributes.color.init(vertexCount);
      }
      if (this.triangleCount !== triangleCount) {
        this.indices = vertexCount > 65535 ? new Uint32Array(triangleCount * 3) : new Uint16Array(triangleCount * 3);
        this._dataIndices = new Uint32Array(vertexCount);
      }
    },
    getBarVertexCount: function() {
      var bevelSegments = this.bevelSize > 0 ? this.bevelSegments : 0;
      return bevelSegments > 0 ? this._getBevelBarVertexCount(bevelSegments) : this.enableNormal ? 24 : 8;
    },
    getBarTriangleCount: function() {
      var bevelSegments = this.bevelSize > 0 ? this.bevelSegments : 0;
      return bevelSegments > 0 ? this._getBevelBarTriangleCount(bevelSegments) : 12;
    },
    _getBevelBarVertexCount: function(bevelSegments) {
      return (bevelSegments + 1) * 4 * (bevelSegments + 1) * 2;
    },
    _getBevelBarTriangleCount: function(bevelSegments) {
      var widthSegments = bevelSegments * 4 + 3;
      var heightSegments = bevelSegments * 2 + 1;
      return (widthSegments + 1) * heightSegments * 2 + 4;
    },
    setColor: function(idx, color) {
      var vertexCount = this.getBarVertexCount();
      var start = vertexCount * idx;
      var end = vertexCount * (idx + 1);
      for (var i = start; i < end; i++) {
        this.attributes.color.set(i, color);
      }
      this.dirtyAttribute("color");
    },
    /**
     * Get dataIndex of vertex.
     * @param {number} vertexIndex
     */
    getDataIndexOfVertex: function(vertexIndex) {
      return this._dataIndices ? this._dataIndices[vertexIndex] : null;
    },
    /**
     * Add a bar
     * @param {Array.<number>} start
     * @param {Array.<number>} end
     * @param {Array.<number>} orient  right direction
     * @param {Array.<number>} size size on x and z
     * @param {Array.<number>} color
     */
    addBar: function() {
      var v3Create = vec3$6.create;
      var v3ScaleAndAdd = vec3$6.scaleAndAdd;
      var end = v3Create();
      var px = v3Create();
      var py = v3Create();
      var pz = v3Create();
      var nx = v3Create();
      var ny = v3Create();
      var nz = v3Create();
      var pts = [];
      var normals = [];
      for (var i = 0; i < 8; i++) {
        pts[i] = v3Create();
      }
      var cubeFaces4 = [
        // PX
        [0, 1, 5, 4],
        // NX
        [2, 3, 7, 6],
        // PY
        [4, 5, 6, 7],
        // NY
        [3, 2, 1, 0],
        // PZ
        [0, 4, 7, 3],
        // NZ
        [1, 2, 6, 5]
      ];
      var face4To3 = [0, 1, 2, 0, 2, 3];
      var cubeFaces3 = [];
      for (var i = 0; i < cubeFaces4.length; i++) {
        var face4 = cubeFaces4[i];
        for (var j = 0; j < 2; j++) {
          var face = [];
          for (var k = 0; k < 3; k++) {
            face.push(face4[face4To3[j * 3 + k]]);
          }
          cubeFaces3.push(face);
        }
      }
      return function(start, dir, leftDir, size, color, dataIndex) {
        var startVertex = this._vertexOffset;
        if (this.bevelSize > 0 && this.bevelSegments > 0) {
          this._addBevelBar(start, dir, leftDir, size, this.bevelSize, this.bevelSegments, color);
        } else {
          vec3$6.copy(py, dir);
          vec3$6.normalize(py, py);
          vec3$6.cross(pz, leftDir, py);
          vec3$6.normalize(pz, pz);
          vec3$6.cross(px, py, pz);
          vec3$6.normalize(pz, pz);
          vec3$6.negate(nx, px);
          vec3$6.negate(ny, py);
          vec3$6.negate(nz, pz);
          v3ScaleAndAdd(pts[0], start, px, size[0] / 2);
          v3ScaleAndAdd(pts[0], pts[0], pz, size[2] / 2);
          v3ScaleAndAdd(pts[1], start, px, size[0] / 2);
          v3ScaleAndAdd(pts[1], pts[1], nz, size[2] / 2);
          v3ScaleAndAdd(pts[2], start, nx, size[0] / 2);
          v3ScaleAndAdd(pts[2], pts[2], nz, size[2] / 2);
          v3ScaleAndAdd(pts[3], start, nx, size[0] / 2);
          v3ScaleAndAdd(pts[3], pts[3], pz, size[2] / 2);
          v3ScaleAndAdd(end, start, py, size[1]);
          v3ScaleAndAdd(pts[4], end, px, size[0] / 2);
          v3ScaleAndAdd(pts[4], pts[4], pz, size[2] / 2);
          v3ScaleAndAdd(pts[5], end, px, size[0] / 2);
          v3ScaleAndAdd(pts[5], pts[5], nz, size[2] / 2);
          v3ScaleAndAdd(pts[6], end, nx, size[0] / 2);
          v3ScaleAndAdd(pts[6], pts[6], nz, size[2] / 2);
          v3ScaleAndAdd(pts[7], end, nx, size[0] / 2);
          v3ScaleAndAdd(pts[7], pts[7], pz, size[2] / 2);
          var attributes = this.attributes;
          if (this.enableNormal) {
            normals[0] = px;
            normals[1] = nx;
            normals[2] = py;
            normals[3] = ny;
            normals[4] = pz;
            normals[5] = nz;
            var vertexOffset = this._vertexOffset;
            for (var i2 = 0; i2 < cubeFaces4.length; i2++) {
              var idx3 = this._triangleOffset * 3;
              for (var k2 = 0; k2 < 6; k2++) {
                this.indices[idx3++] = vertexOffset + face4To3[k2];
              }
              vertexOffset += 4;
              this._triangleOffset += 2;
            }
            for (var i2 = 0; i2 < cubeFaces4.length; i2++) {
              var normal2 = normals[i2];
              for (var k2 = 0; k2 < 4; k2++) {
                var idx = cubeFaces4[i2][k2];
                attributes.position.set(this._vertexOffset, pts[idx]);
                attributes.normal.set(this._vertexOffset, normal2);
                attributes.color.set(this._vertexOffset++, color);
              }
            }
          } else {
            for (var i2 = 0; i2 < cubeFaces3.length; i2++) {
              var idx3 = this._triangleOffset * 3;
              for (var k2 = 0; k2 < 3; k2++) {
                this.indices[idx3 + k2] = cubeFaces3[i2][k2] + this._vertexOffset;
              }
              this._triangleOffset++;
            }
            for (var i2 = 0; i2 < pts.length; i2++) {
              attributes.position.set(this._vertexOffset, pts[i2]);
              attributes.color.set(this._vertexOffset++, color);
            }
          }
        }
        var endVerex = this._vertexOffset;
        for (var i2 = startVertex; i2 < endVerex; i2++) {
          this._dataIndices[i2] = dataIndex;
        }
      };
    }(),
    /**
     * Add a bar with bevel
     * @param {Array.<number>} start
     * @param {Array.<number>} end
     * @param {Array.<number>} orient  right direction
     * @param {Array.<number>} size size on x and z
     * @param {number} bevelSize
     * @param {number} bevelSegments
     * @param {Array.<number>} color
     */
    _addBevelBar: function() {
      var px = vec3$6.create();
      var py = vec3$6.create();
      var pz = vec3$6.create();
      var rotateMat = mat3.create();
      var bevelStartSize = [];
      var xOffsets = [1, -1, -1, 1];
      var zOffsets = [1, 1, -1, -1];
      var yOffsets = [2, 0];
      return function(start, dir, leftDir, size, bevelSize, bevelSegments, color) {
        vec3$6.copy(py, dir);
        vec3$6.normalize(py, py);
        vec3$6.cross(pz, leftDir, py);
        vec3$6.normalize(pz, pz);
        vec3$6.cross(px, py, pz);
        vec3$6.normalize(pz, pz);
        rotateMat[0] = px[0];
        rotateMat[1] = px[1];
        rotateMat[2] = px[2];
        rotateMat[3] = py[0];
        rotateMat[4] = py[1];
        rotateMat[5] = py[2];
        rotateMat[6] = pz[0];
        rotateMat[7] = pz[1];
        rotateMat[8] = pz[2];
        bevelSize = Math.min(size[0], size[2]) / 2 * bevelSize;
        for (var i = 0; i < 3; i++) {
          bevelStartSize[i] = Math.max(size[i] - bevelSize * 2, 0);
        }
        var rx = (size[0] - bevelStartSize[0]) / 2;
        var ry = (size[1] - bevelStartSize[1]) / 2;
        var rz = (size[2] - bevelStartSize[2]) / 2;
        var pos = [];
        var normal2 = [];
        var vertexOffset = this._vertexOffset;
        var endIndices = [];
        for (var i = 0; i < 2; i++) {
          endIndices[i] = endIndices[i] = [];
          for (var m = 0; m <= bevelSegments; m++) {
            for (var j = 0; j < 4; j++) {
              if (m === 0 && i === 0 || i === 1 && m === bevelSegments) {
                endIndices[i].push(vertexOffset);
              }
              for (var n = 0; n <= bevelSegments; n++) {
                var phi = n / bevelSegments * Math.PI / 2 + Math.PI / 2 * j;
                var theta = m / bevelSegments * Math.PI / 2 + Math.PI / 2 * i;
                normal2[0] = rx * Math.cos(phi) * Math.sin(theta);
                normal2[1] = ry * Math.cos(theta);
                normal2[2] = rz * Math.sin(phi) * Math.sin(theta);
                pos[0] = normal2[0] + xOffsets[j] * bevelStartSize[0] / 2;
                pos[1] = normal2[1] + ry + yOffsets[i] * bevelStartSize[1] / 2;
                pos[2] = normal2[2] + zOffsets[j] * bevelStartSize[2] / 2;
                if (!(Math.abs(rx - ry) < 1e-6 && Math.abs(ry - rz) < 1e-6)) {
                  normal2[0] /= rx * rx;
                  normal2[1] /= ry * ry;
                  normal2[2] /= rz * rz;
                }
                vec3$6.normalize(normal2, normal2);
                vec3$6.transformMat3(pos, pos, rotateMat);
                vec3$6.transformMat3(normal2, normal2, rotateMat);
                vec3$6.add(pos, pos, start);
                this.attributes.position.set(vertexOffset, pos);
                if (this.enableNormal) {
                  this.attributes.normal.set(vertexOffset, normal2);
                }
                this.attributes.color.set(vertexOffset, color);
                vertexOffset++;
              }
            }
          }
        }
        var widthSegments = bevelSegments * 4 + 3;
        var heightSegments = bevelSegments * 2 + 1;
        var len = widthSegments + 1;
        for (var j = 0; j < heightSegments; j++) {
          for (var i = 0; i <= widthSegments; i++) {
            var i2 = j * len + i + this._vertexOffset;
            var i1 = j * len + (i + 1) % len + this._vertexOffset;
            var i4 = (j + 1) * len + (i + 1) % len + this._vertexOffset;
            var i3 = (j + 1) * len + i + this._vertexOffset;
            this.setTriangleIndices(this._triangleOffset++, [i4, i2, i1]);
            this.setTriangleIndices(this._triangleOffset++, [i4, i3, i2]);
          }
        }
        this.setTriangleIndices(this._triangleOffset++, [endIndices[0][0], endIndices[0][2], endIndices[0][1]]);
        this.setTriangleIndices(this._triangleOffset++, [endIndices[0][0], endIndices[0][3], endIndices[0][2]]);
        this.setTriangleIndices(this._triangleOffset++, [endIndices[1][0], endIndices[1][1], endIndices[1][2]]);
        this.setTriangleIndices(this._triangleOffset++, [endIndices[1][0], endIndices[1][2], endIndices[1][3]]);
        this._vertexOffset = vertexOffset;
      };
    }()
  }
);
defaults(BarsGeometry.prototype, dynamicConvertMixin);
defaults(BarsGeometry.prototype, trianglesSortMixin);
var vec3$5 = glmatrix.vec3;
const Bar3DView = ChartView.extend({
  type: "bar3D",
  __ecgl__: true,
  init: function(ecModel, api) {
    this.groupGL = new graphicGL.Node();
    this._api = api;
    this._labelsBuilder = new LabelsBuilder(256, 256, api);
    var self2 = this;
    this._labelsBuilder.getLabelPosition = function(dataIndex, position, distance) {
      if (self2._data) {
        var layout = self2._data.getItemLayout(dataIndex);
        var start = layout[0];
        var dir = layout[1];
        var height = layout[2][1];
        return vec3$5.scaleAndAdd([], start, dir, distance + height);
      } else {
        return [0, 0];
      }
    };
    this._labelsBuilder.getMesh().renderOrder = 100;
  },
  render: function(seriesModel, ecModel, api) {
    var tmp = this._prevBarMesh;
    this._prevBarMesh = this._barMesh;
    this._barMesh = tmp;
    if (!this._barMesh) {
      this._barMesh = new graphicGL.Mesh({
        geometry: new BarsGeometry(),
        shadowDepthMaterial: new graphicGL.Material({
          shader: new graphicGL.Shader(graphicGL.Shader.source("ecgl.sm.depth.vertex"), graphicGL.Shader.source("ecgl.sm.depth.fragment"))
        }),
        // Only cartesian3D enable culling
        // FIXME Performance
        culling: seriesModel.coordinateSystem.type === "cartesian3D",
        // Render after axes
        renderOrder: 10,
        // Render normal in normal pass
        renderNormal: true
      });
    }
    this.groupGL.remove(this._prevBarMesh);
    this.groupGL.add(this._barMesh);
    this.groupGL.add(this._labelsBuilder.getMesh());
    var coordSys = seriesModel.coordinateSystem;
    this._doRender(seriesModel, api);
    if (coordSys && coordSys.viewGL) {
      coordSys.viewGL.add(this.groupGL);
      var methodName = coordSys.viewGL.isLinearSpace() ? "define" : "undefine";
      this._barMesh.material[methodName]("fragment", "SRGB_DECODE");
    }
    this._data = seriesModel.getData();
    this._labelsBuilder.updateData(this._data);
    this._labelsBuilder.updateLabels();
    this._updateAnimation(seriesModel);
  },
  _updateAnimation: function(seriesModel) {
    graphicGL.updateVertexAnimation([["prevPosition", "position"], ["prevNormal", "normal"]], this._prevBarMesh, this._barMesh, seriesModel);
  },
  _doRender: function(seriesModel, api) {
    var data = seriesModel.getData();
    var shading = seriesModel.get("shading");
    var enableNormal = shading !== "color";
    var self2 = this;
    var barMesh = this._barMesh;
    var shadingPrefix = "ecgl." + shading;
    if (!barMesh.material || barMesh.material.shader.name !== shadingPrefix) {
      barMesh.material = graphicGL.createMaterial(shadingPrefix, ["VERTEX_COLOR"]);
    }
    graphicGL.setMaterialFromModel(shading, barMesh.material, seriesModel, api);
    barMesh.geometry.enableNormal = enableNormal;
    barMesh.geometry.resetOffset();
    var bevelSize = seriesModel.get("bevelSize");
    var bevelSegments = seriesModel.get("bevelSmoothness");
    barMesh.geometry.bevelSegments = bevelSegments;
    barMesh.geometry.bevelSize = bevelSize;
    var colorArr = [];
    var vertexColors = new Float32Array(data.count() * 4);
    var colorOffset = 0;
    var barCount = 0;
    var hasTransparent = false;
    data.each(function(idx) {
      if (!data.hasValue(idx)) {
        return;
      }
      var color = getItemVisualColor(data, idx);
      var opacity = getItemVisualOpacity(data, idx);
      if (opacity == null) {
        opacity = 1;
      }
      graphicGL.parseColor(color, colorArr);
      colorArr[3] *= opacity;
      vertexColors[colorOffset++] = colorArr[0];
      vertexColors[colorOffset++] = colorArr[1];
      vertexColors[colorOffset++] = colorArr[2];
      vertexColors[colorOffset++] = colorArr[3];
      if (colorArr[3] > 0) {
        barCount++;
        if (colorArr[3] < 0.99) {
          hasTransparent = true;
        }
      }
    });
    barMesh.geometry.setBarCount(barCount);
    var orient = data.getLayout("orient");
    var barIndexOfData = this._barIndexOfData = new Int32Array(data.count());
    var barCount = 0;
    data.each(function(idx) {
      if (!data.hasValue(idx)) {
        barIndexOfData[idx] = -1;
        return;
      }
      var layout = data.getItemLayout(idx);
      var start = layout[0];
      var dir = layout[1];
      var size = layout[2];
      var idx4 = idx * 4;
      colorArr[0] = vertexColors[idx4++];
      colorArr[1] = vertexColors[idx4++];
      colorArr[2] = vertexColors[idx4++];
      colorArr[3] = vertexColors[idx4++];
      if (colorArr[3] > 0) {
        self2._barMesh.geometry.addBar(start, dir, orient, size, colorArr, idx);
        barIndexOfData[idx] = barCount++;
      }
    });
    barMesh.geometry.dirty();
    barMesh.geometry.updateBoundingBox();
    var material = barMesh.material;
    material.transparent = hasTransparent;
    material.depthMask = !hasTransparent;
    barMesh.geometry.sortTriangles = hasTransparent;
    this._initHandler(seriesModel, api);
  },
  _initHandler: function(seriesModel, api) {
    var data = seriesModel.getData();
    var barMesh = this._barMesh;
    var isCartesian3D = seriesModel.coordinateSystem.type === "cartesian3D";
    barMesh.seriesIndex = seriesModel.seriesIndex;
    var lastDataIndex = -1;
    barMesh.off("mousemove");
    barMesh.off("mouseout");
    barMesh.on("mousemove", function(e2) {
      var dataIndex = barMesh.geometry.getDataIndexOfVertex(e2.triangle[0]);
      if (dataIndex !== lastDataIndex) {
        this._downplay(lastDataIndex);
        this._highlight(dataIndex);
        this._labelsBuilder.updateLabels([dataIndex]);
        if (isCartesian3D) {
          api.dispatchAction({
            type: "grid3DShowAxisPointer",
            value: [data.get("x", dataIndex), data.get("y", dataIndex), data.get("z", dataIndex, true)]
          });
        }
      }
      lastDataIndex = dataIndex;
      barMesh.dataIndex = dataIndex;
    }, this);
    barMesh.on("mouseout", function(e2) {
      this._downplay(lastDataIndex);
      this._labelsBuilder.updateLabels();
      lastDataIndex = -1;
      barMesh.dataIndex = -1;
      if (isCartesian3D) {
        api.dispatchAction({
          type: "grid3DHideAxisPointer"
        });
      }
    }, this);
  },
  _highlight: function(dataIndex) {
    var data = this._data;
    if (!data) {
      return;
    }
    var barIndex = this._barIndexOfData[dataIndex];
    if (barIndex < 0) {
      return;
    }
    var itemModel = data.getItemModel(dataIndex);
    var emphasisItemStyleModel = itemModel.getModel("emphasis.itemStyle");
    var emphasisColor = emphasisItemStyleModel.get("color");
    var emphasisOpacity = emphasisItemStyleModel.get("opacity");
    if (emphasisColor == null) {
      var color = getItemVisualColor(data, dataIndex);
      emphasisColor = lift(color, -0.4);
    }
    if (emphasisOpacity == null) {
      emphasisOpacity = getItemVisualOpacity(data, dataIndex);
    }
    var colorArr = graphicGL.parseColor(emphasisColor);
    colorArr[3] *= emphasisOpacity;
    this._barMesh.geometry.setColor(barIndex, colorArr);
    this._api.getZr().refresh();
  },
  _downplay: function(dataIndex) {
    var data = this._data;
    if (!data) {
      return;
    }
    var barIndex = this._barIndexOfData[dataIndex];
    if (barIndex < 0) {
      return;
    }
    var color = getItemVisualColor(data, dataIndex);
    var opacity = getItemVisualOpacity(data, dataIndex);
    var colorArr = graphicGL.parseColor(color);
    colorArr[3] *= opacity;
    this._barMesh.geometry.setColor(barIndex, colorArr);
    this._api.getZr().refresh();
  },
  highlight: function(seriesModel, ecModel, api, payload) {
    this._toggleStatus("highlight", seriesModel, ecModel, api, payload);
  },
  downplay: function(seriesModel, ecModel, api, payload) {
    this._toggleStatus("downplay", seriesModel, ecModel, api, payload);
  },
  _toggleStatus: function(status, seriesModel, ecModel, api, payload) {
    var data = seriesModel.getData();
    var dataIndex = retrieve.queryDataIndex(data, payload);
    var self2 = this;
    if (dataIndex != null) {
      each(formatUtil.normalizeToArray(dataIndex), function(dataIdx) {
        status === "highlight" ? this._highlight(dataIdx) : this._downplay(dataIdx);
      }, this);
    } else {
      data.each(function(dataIdx) {
        status === "highlight" ? self2._highlight(dataIdx) : self2._downplay(dataIdx);
      });
    }
  },
  remove: function() {
    this.groupGL.removeAll();
  },
  dispose: function() {
    this._labelsBuilder.dispose();
    this.groupGL.removeAll();
  }
});
function install$a(registers) {
  registers.registerChartView(Bar3DView);
  registers.registerSeriesModel(Bar3DSeries);
  registerBarLayout(registers);
  registers.registerProcessor(function(ecModel, api) {
    ecModel.eachSeriesByType("bar3d", function(seriesModel) {
      var data = seriesModel.getData();
      data.filterSelf(function(idx) {
        return data.hasValue(idx);
      });
    });
  });
}
use(install$a);
var Line3DSeries = SeriesModel.extend({
  type: "series.line3D",
  dependencies: ["grid3D"],
  visualStyleAccessPath: "lineStyle",
  visualDrawType: "stroke",
  getInitialData: function(option, ecModel) {
    return createList(this);
  },
  formatTooltip: function(dataIndex) {
    return formatTooltip(this, dataIndex);
  },
  defaultOption: {
    coordinateSystem: "cartesian3D",
    zlevel: -10,
    // Cartesian coordinate system
    grid3DIndex: 0,
    lineStyle: {
      width: 2
    },
    animationDurationUpdate: 500
  }
});
function containStroke(x0, y0, x1, y1, lineWidth, x, y) {
  if (lineWidth === 0) {
    return false;
  }
  var _l = lineWidth;
  var _a = 0;
  var _b = x0;
  if (y > y0 + _l && y > y1 + _l || y < y0 - _l && y < y1 - _l || x > x0 + _l && x > x1 + _l || x < x0 - _l && x < x1 - _l) {
    return false;
  }
  if (x0 !== x1) {
    _a = (y0 - y1) / (x0 - x1);
    _b = (x0 * y1 - x1 * y0) / (x0 - x1);
  } else {
    return Math.abs(x - x0) <= _l / 2;
  }
  var tmp = _a * x - y + _b;
  var _s = tmp * tmp / (_a * _a + 1);
  return _s <= _l / 2 * _l / 2;
}
var vec3$4 = glmatrix.vec3;
graphicGL.Shader.import(lines3DGLSL);
const Line3DView = ChartView.extend({
  type: "line3D",
  __ecgl__: true,
  init: function(ecModel, api) {
    this.groupGL = new graphicGL.Node();
    this._api = api;
  },
  render: function(seriesModel, ecModel, api) {
    var tmp = this._prevLine3DMesh;
    this._prevLine3DMesh = this._line3DMesh;
    this._line3DMesh = tmp;
    if (!this._line3DMesh) {
      this._line3DMesh = new graphicGL.Mesh({
        geometry: new LinesGeometry$2({
          useNativeLine: false,
          sortTriangles: true
        }),
        material: new graphicGL.Material({
          shader: graphicGL.createShader("ecgl.meshLines3D")
        }),
        // Render after axes
        renderOrder: 10
      });
      this._line3DMesh.geometry.pick = this._pick.bind(this);
    }
    this.groupGL.remove(this._prevLine3DMesh);
    this.groupGL.add(this._line3DMesh);
    var coordSys = seriesModel.coordinateSystem;
    if (coordSys && coordSys.viewGL) {
      coordSys.viewGL.add(this.groupGL);
      var methodName = coordSys.viewGL.isLinearSpace() ? "define" : "undefine";
      this._line3DMesh.material[methodName]("fragment", "SRGB_DECODE");
    }
    this._doRender(seriesModel, api);
    this._data = seriesModel.getData();
    this._camera = coordSys.viewGL.camera;
    this.updateCamera();
    this._updateAnimation(seriesModel);
  },
  updateCamera: function() {
    this._updateNDCPosition();
  },
  _doRender: function(seriesModel, api) {
    var data = seriesModel.getData();
    var lineMesh = this._line3DMesh;
    lineMesh.geometry.resetOffset();
    var points = data.getLayout("points");
    var colorArr = [];
    var vertexColors = new Float32Array(points.length / 3 * 4);
    var colorOffset = 0;
    var hasTransparent = false;
    data.each(function(idx) {
      var color = getItemVisualColor(data, idx);
      var opacity = getItemVisualOpacity(data, idx);
      if (opacity == null) {
        opacity = 1;
      }
      graphicGL.parseColor(color, colorArr);
      colorArr[3] *= opacity;
      vertexColors[colorOffset++] = colorArr[0];
      vertexColors[colorOffset++] = colorArr[1];
      vertexColors[colorOffset++] = colorArr[2];
      vertexColors[colorOffset++] = colorArr[3];
      if (colorArr[3] < 0.99) {
        hasTransparent = true;
      }
    });
    lineMesh.geometry.setVertexCount(lineMesh.geometry.getPolylineVertexCount(points));
    lineMesh.geometry.setTriangleCount(lineMesh.geometry.getPolylineTriangleCount(points));
    lineMesh.geometry.addPolyline(points, vertexColors, retrieve.firstNotNull(seriesModel.get("lineStyle.width"), 1));
    lineMesh.geometry.dirty();
    lineMesh.geometry.updateBoundingBox();
    var material = lineMesh.material;
    material.transparent = hasTransparent;
    material.depthMask = !hasTransparent;
    var debugWireframeModel = seriesModel.getModel("debug.wireframe");
    if (debugWireframeModel.get("show")) {
      lineMesh.geometry.createAttribute("barycentric", "float", 3);
      lineMesh.geometry.generateBarycentric();
      lineMesh.material.set("both", "WIREFRAME_TRIANGLE");
      lineMesh.material.set("wireframeLineColor", graphicGL.parseColor(debugWireframeModel.get("lineStyle.color") || "rgba(0,0,0,0.5)"));
      lineMesh.material.set("wireframeLineWidth", retrieve.firstNotNull(debugWireframeModel.get("lineStyle.width"), 1));
    } else {
      lineMesh.material.set("both", "WIREFRAME_TRIANGLE");
    }
    this._points = points;
    this._initHandler(seriesModel, api);
  },
  _updateAnimation: function(seriesModel) {
    graphicGL.updateVertexAnimation([["prevPosition", "position"], ["prevPositionPrev", "positionPrev"], ["prevPositionNext", "positionNext"]], this._prevLine3DMesh, this._line3DMesh, seriesModel);
  },
  _initHandler: function(seriesModel, api) {
    var data = seriesModel.getData();
    var coordSys = seriesModel.coordinateSystem;
    var lineMesh = this._line3DMesh;
    var lastDataIndex = -1;
    lineMesh.seriesIndex = seriesModel.seriesIndex;
    lineMesh.off("mousemove");
    lineMesh.off("mouseout");
    lineMesh.on("mousemove", function(e2) {
      var value = coordSys.pointToData(e2.point.array);
      var dataIndex = data.indicesOfNearest("x", value[0])[0];
      if (dataIndex !== lastDataIndex) {
        api.dispatchAction({
          type: "grid3DShowAxisPointer",
          value: [data.get("x", dataIndex), data.get("y", dataIndex), data.get("z", dataIndex)]
        });
        lineMesh.dataIndex = dataIndex;
      }
      lastDataIndex = dataIndex;
    }, this);
    lineMesh.on("mouseout", function(e2) {
      lastDataIndex = -1;
      lineMesh.dataIndex = -1;
      api.dispatchAction({
        type: "grid3DHideAxisPointer"
      });
    }, this);
  },
  // _highlight: function (dataIndex) {
  //     var data = this._data;
  //     if (!data) {
  //         return;
  //     }
  // },
  // _downplay: function (dataIndex) {
  //     var data = this._data;
  //     if (!data) {
  //         return;
  //     }
  // },
  _updateNDCPosition: function() {
    var worldViewProjection = new Matrix4();
    var camera2 = this._camera;
    Matrix4.multiply(worldViewProjection, camera2.projectionMatrix, camera2.viewMatrix);
    var positionNDC = this._positionNDC;
    var points = this._points;
    var nPoints = points.length / 3;
    if (!positionNDC || positionNDC.length / 2 !== nPoints) {
      positionNDC = this._positionNDC = new Float32Array(nPoints * 2);
    }
    var pos = [];
    for (var i = 0; i < nPoints; i++) {
      var i3 = i * 3;
      var i2 = i * 2;
      pos[0] = points[i3];
      pos[1] = points[i3 + 1];
      pos[2] = points[i3 + 2];
      pos[3] = 1;
      vec3$4.transformMat4(pos, pos, worldViewProjection.array);
      positionNDC[i2] = pos[0] / pos[3];
      positionNDC[i2 + 1] = pos[1] / pos[3];
    }
  },
  _pick: function(x, y, renderer, camera2, renderable, out) {
    var positionNDC = this._positionNDC;
    var seriesModel = this._data.hostModel;
    var lineWidth = seriesModel.get("lineStyle.width");
    var dataIndex = -1;
    var width = renderer.viewport.width;
    var height = renderer.viewport.height;
    var halfWidth = width * 0.5;
    var halfHeight = height * 0.5;
    x = (x + 1) * halfWidth;
    y = (y + 1) * halfHeight;
    for (var i = 1; i < positionNDC.length / 2; i++) {
      var x0 = (positionNDC[(i - 1) * 2] + 1) * halfWidth;
      var y0 = (positionNDC[(i - 1) * 2 + 1] + 1) * halfHeight;
      var x1 = (positionNDC[i * 2] + 1) * halfWidth;
      var y1 = (positionNDC[i * 2 + 1] + 1) * halfHeight;
      if (containStroke(x0, y0, x1, y1, lineWidth, x, y)) {
        var dist0 = (x0 - x) * (x0 - x) + (y0 - y) * (y0 - y);
        var dist1 = (x1 - x) * (x1 - x) + (y1 - y) * (y1 - y);
        dataIndex = dist0 < dist1 ? i - 1 : i;
      }
    }
    if (dataIndex >= 0) {
      var i3 = dataIndex * 3;
      var point = new Vector3(this._points[i3], this._points[i3 + 1], this._points[i3 + 2]);
      out.push({
        dataIndex,
        point,
        pointWorld: point.clone(),
        target: this._line3DMesh,
        distance: this._camera.getWorldPosition().dist(point)
      });
    }
  },
  remove: function() {
    this.groupGL.removeAll();
  },
  dispose: function() {
    this.groupGL.removeAll();
  }
});
function install$9(registers) {
  registers.registerChartView(Line3DView);
  registers.registerSeriesModel(Line3DSeries);
  registers.registerLayout(function(ecModel, api) {
    ecModel.eachSeriesByType("line3D", function(seriesModel) {
      var data = seriesModel.getData();
      var coordSys = seriesModel.coordinateSystem;
      if (coordSys) {
        if (coordSys.type !== "cartesian3D") {
          return;
        }
        var points = new Float32Array(data.count() * 3);
        var item = [];
        var out = [];
        var coordDims = coordSys.dimensions;
        var dims = coordDims.map(function(coordDim) {
          return seriesModel.coordDimToDataDim(coordDim)[0];
        });
        if (coordSys) {
          data.each(dims, function(x, y, z, idx) {
            item[0] = x;
            item[1] = y;
            item[2] = z;
            coordSys.dataToPoint(item, out);
            points[idx * 3] = out[0];
            points[idx * 3 + 1] = out[1];
            points[idx * 3 + 2] = out[2];
          });
        }
        data.setLayout("points", points);
      }
    });
  });
}
use(install$9);
const Scatter3DSeries = SeriesModel.extend({
  type: "series.scatter3D",
  dependencies: ["globe", "grid3D", "geo3D"],
  visualStyleAccessPath: "itemStyle",
  hasSymbolVisual: true,
  getInitialData: function(option, ecModel) {
    return createList(this);
  },
  getFormattedLabel: function(dataIndex, status, dataType, dimIndex) {
    var text = formatUtil.getFormattedLabel(this, dataIndex, status, dataType, dimIndex);
    if (text == null) {
      var data = this.getData();
      var lastDim = data.dimensions[data.dimensions.length - 1];
      text = data.get(lastDim, dataIndex);
    }
    return text;
  },
  formatTooltip: function(dataIndex) {
    return formatTooltip(this, dataIndex);
  },
  defaultOption: {
    coordinateSystem: "cartesian3D",
    zlevel: -10,
    progressive: 1e5,
    progressiveThreshold: 1e5,
    // Cartesian coordinate system
    grid3DIndex: 0,
    globeIndex: 0,
    symbol: "circle",
    symbolSize: 10,
    // Support source-over, lighter
    blendMode: "source-over",
    label: {
      show: false,
      position: "right",
      // Screen space distance
      distance: 5,
      textStyle: {
        fontSize: 14,
        color: "#000",
        backgroundColor: "rgba(255,255,255,0.7)",
        padding: 3,
        borderRadius: 3
      }
    },
    itemStyle: {
      opacity: 0.8
    },
    emphasis: {
      label: {
        show: true
      }
    },
    animationDurationUpdate: 500
  }
});
function makeSprite(size, canvas, draw) {
  var canvas = canvas || document.createElement("canvas");
  canvas.width = size;
  canvas.height = size;
  var ctx = canvas.getContext("2d");
  draw && draw(ctx);
  return canvas;
}
function makePath(symbol, symbolSize, style, marginBias) {
  if (!isArray(symbolSize)) {
    symbolSize = [symbolSize, symbolSize];
  }
  var margin = spriteUtil.getMarginByStyle(style, marginBias);
  var width = symbolSize[0] + margin.left + margin.right;
  var height = symbolSize[1] + margin.top + margin.bottom;
  var path = createSymbol(symbol, 0, 0, symbolSize[0], symbolSize[1]);
  var size = Math.max(width, height);
  path.x = margin.left;
  path.y = margin.top;
  if (width > height) {
    path.y += (size - height) / 2;
  } else {
    path.x += (size - width) / 2;
  }
  var rect = path.getBoundingRect();
  path.x -= rect.x;
  path.y -= rect.y;
  path.setStyle(style);
  path.update();
  path.__size = size;
  return path;
}
function generateSDF(ctx, sourceImageData, range) {
  var sourceWidth = sourceImageData.width;
  var sourceHeight = sourceImageData.height;
  var width = ctx.canvas.width;
  var height = ctx.canvas.height;
  var scaleX = sourceWidth / width;
  var scaleY = sourceHeight / height;
  function sign2(r) {
    return r < 128 ? 1 : -1;
  }
  function searchMinDistance(x2, y2) {
    var minDistSqr = Infinity;
    x2 = Math.floor(x2 * scaleX);
    y2 = Math.floor(y2 * scaleY);
    var i2 = y2 * sourceWidth + x2;
    var r = sourceImageData.data[i2 * 4];
    var a = sign2(r);
    for (var y22 = Math.max(y2 - range, 0); y22 < Math.min(y2 + range, sourceHeight); y22++) {
      for (var x22 = Math.max(x2 - range, 0); x22 < Math.min(x2 + range, sourceWidth); x22++) {
        var i2 = y22 * sourceWidth + x22;
        var r2 = sourceImageData.data[i2 * 4];
        var b = sign2(r2);
        var dx = x22 - x2;
        var dy = y22 - y2;
        if (a !== b) {
          var distSqr = dx * dx + dy * dy;
          if (distSqr < minDistSqr) {
            minDistSqr = distSqr;
          }
        }
      }
    }
    return a * Math.sqrt(minDistSqr);
  }
  var sdfImageData = ctx.createImageData(width, height);
  for (var y = 0; y < height; y++) {
    for (var x = 0; x < width; x++) {
      var dist = searchMinDistance(x, y);
      var normalized = dist / range * 0.5 + 0.5;
      var i = (y * width + x) * 4;
      sdfImageData.data[i++] = (1 - normalized) * 255;
      sdfImageData.data[i++] = (1 - normalized) * 255;
      sdfImageData.data[i++] = (1 - normalized) * 255;
      sdfImageData.data[i++] = 255;
    }
  }
  return sdfImageData;
}
var spriteUtil = {
  getMarginByStyle: function(style) {
    var minMargin = style.minMargin || 0;
    var lineWidth = 0;
    if (style.stroke && style.stroke !== "none") {
      lineWidth = style.lineWidth == null ? 1 : style.lineWidth;
    }
    var shadowBlurSize = style.shadowBlur || 0;
    var shadowOffsetX = style.shadowOffsetX || 0;
    var shadowOffsetY = style.shadowOffsetY || 0;
    var margin = {};
    margin.left = Math.max(lineWidth / 2, -shadowOffsetX + shadowBlurSize, minMargin);
    margin.right = Math.max(lineWidth / 2, shadowOffsetX + shadowBlurSize, minMargin);
    margin.top = Math.max(lineWidth / 2, -shadowOffsetY + shadowBlurSize, minMargin);
    margin.bottom = Math.max(lineWidth / 2, shadowOffsetY + shadowBlurSize, minMargin);
    return margin;
  },
  // TODO Not consider shadowOffsetX, shadowOffsetY.
  /**
   * @param {string} symbol
   * @param {number | Array.<number>} symbolSize
   * @param {Object} style
   */
  createSymbolSprite: function(symbol, symbolSize, style, canvas) {
    var path = makePath(symbol, symbolSize, style);
    var margin = spriteUtil.getMarginByStyle(style);
    return {
      image: makeSprite(path.__size, canvas, function(ctx) {
        brushSingle(ctx, path);
      }),
      margin
    };
  },
  createSDFFromCanvas: function(canvas, size, range, outCanvas) {
    return makeSprite(size, outCanvas, function(outCtx) {
      var ctx = canvas.getContext("2d");
      var imgData = ctx.getImageData(0, 0, canvas.width, canvas.height);
      outCtx.putImageData(generateSDF(outCtx, imgData, range), 0, 0);
    });
  },
  createSimpleSprite: function(size, canvas) {
    return makeSprite(size, canvas, function(ctx) {
      var halfSize = size / 2;
      ctx.beginPath();
      ctx.arc(halfSize, halfSize, 60, 0, Math.PI * 2, false);
      ctx.closePath();
      var gradient = ctx.createRadialGradient(halfSize, halfSize, 0, halfSize, halfSize, halfSize);
      gradient.addColorStop(0, "rgba(255, 255, 255, 1)");
      gradient.addColorStop(0.5, "rgba(255, 255, 255, 0.5)");
      gradient.addColorStop(1, "rgba(255, 255, 255, 0)");
      ctx.fillStyle = gradient;
      ctx.fill();
    });
  }
};
var vec3$3 = glmatrix.vec3;
const verticesSortMixin = {
  needsSortVertices: function() {
    return this.sortVertices;
  },
  needsSortVerticesProgressively: function() {
    return this.needsSortVertices() && this.vertexCount >= 2e4;
  },
  doSortVertices: function(cameraPos, frame) {
    var indices = this.indices;
    var p = vec3$3.create();
    if (!indices) {
      indices = this.indices = this.vertexCount > 65535 ? new Uint32Array(this.vertexCount) : new Uint16Array(this.vertexCount);
      for (var i = 0; i < indices.length; i++) {
        indices[i] = i;
      }
    }
    if (frame === 0) {
      var posAttr = this.attributes.position;
      var cameraPos = cameraPos.array;
      var noneCount = 0;
      if (!this._zList || this._zList.length !== this.vertexCount) {
        this._zList = new Float32Array(this.vertexCount);
      }
      var firstZ;
      for (var i = 0; i < this.vertexCount; i++) {
        posAttr.get(i, p);
        var z = vec3$3.sqrDist(p, cameraPos);
        if (isNaN(z)) {
          z = 1e7;
          noneCount++;
        }
        if (i === 0) {
          firstZ = z;
          z = 0;
        } else {
          z = z - firstZ;
        }
        this._zList[i] = z;
      }
      this._noneCount = noneCount;
    }
    if (this.vertexCount < 2e4) {
      if (frame === 0) {
        this._simpleSort(this._noneCount / this.vertexCount > 0.05);
      }
    } else {
      for (var i = 0; i < 3; i++) {
        this._progressiveQuickSort(frame * 3 + i);
      }
    }
    this.dirtyIndices();
  },
  _simpleSort: function(useNativeQuickSort) {
    var zList = this._zList;
    var indices = this.indices;
    function compare(a, b) {
      return zList[b] - zList[a];
    }
    if (useNativeQuickSort) {
      Array.prototype.sort.call(indices, compare);
    } else {
      ProgressiveQuickSort.sort(indices, compare, 0, indices.length - 1);
    }
  },
  _progressiveQuickSort: function(frame) {
    var zList = this._zList;
    var indices = this.indices;
    this._quickSort = this._quickSort || new ProgressiveQuickSort();
    this._quickSort.step(indices, function(a, b) {
      return zList[b] - zList[a];
    }, frame);
  }
};
const sdfSpriteGLSL = "@export ecgl.sdfSprite.vertex\n\nuniform mat4 worldViewProjection : WORLDVIEWPROJECTION;\nuniform float elapsedTime : 0;\n\nattribute vec3 position : POSITION;\n\n#ifdef VERTEX_SIZE\nattribute float size;\n#else\nuniform float u_Size;\n#endif\n\n#ifdef VERTEX_COLOR\nattribute vec4 a_FillColor: COLOR;\nvarying vec4 v_Color;\n#endif\n\n#ifdef VERTEX_ANIMATION\nattribute vec3 prevPosition;\nattribute float prevSize;\nuniform float percent : 1.0;\n#endif\n\n\n#ifdef POSITIONTEXTURE_ENABLED\nuniform sampler2D positionTexture;\n#endif\n\nvarying float v_Size;\n\nvoid main()\n{\n\n#ifdef POSITIONTEXTURE_ENABLED\n gl_Position = worldViewProjection * vec4(texture2D(positionTexture, position.xy).xy, -10.0, 1.0);\n#else\n\n #ifdef VERTEX_ANIMATION\n vec3 pos = mix(prevPosition, position, percent);\n #else\n vec3 pos = position;\n #endif\n gl_Position = worldViewProjection * vec4(pos, 1.0);\n#endif\n\n#ifdef VERTEX_SIZE\n#ifdef VERTEX_ANIMATION\n v_Size = mix(prevSize, size, percent);\n#else\n v_Size = size;\n#endif\n#else\n v_Size = u_Size;\n#endif\n\n#ifdef VERTEX_COLOR\n v_Color = a_FillColor;\n #endif\n\n gl_PointSize = v_Size;\n}\n\n@end\n\n@export ecgl.sdfSprite.fragment\n\nuniform vec4 color: [1, 1, 1, 1];\nuniform vec4 strokeColor: [1, 1, 1, 1];\nuniform float smoothing: 0.07;\n\nuniform float lineWidth: 0.0;\n\n#ifdef VERTEX_COLOR\nvarying vec4 v_Color;\n#endif\n\nvarying float v_Size;\n\nuniform sampler2D sprite;\n\n@import clay.util.srgb\n\nvoid main()\n{\n gl_FragColor = color;\n\n vec4 _strokeColor = strokeColor;\n\n#ifdef VERTEX_COLOR\n gl_FragColor *= v_Color;\n #endif\n\n#ifdef SPRITE_ENABLED\n float d = texture2D(sprite, gl_PointCoord).r;\n gl_FragColor.a *= smoothstep(0.5 - smoothing, 0.5 + smoothing, d);\n\n if (lineWidth > 0.0) {\n float sLineWidth = lineWidth / 2.0;\n\n float outlineMaxValue0 = 0.5 + sLineWidth;\n float outlineMaxValue1 = 0.5 + sLineWidth + smoothing;\n float outlineMinValue0 = 0.5 - sLineWidth - smoothing;\n float outlineMinValue1 = 0.5 - sLineWidth;\n\n if (d <= outlineMaxValue1 && d >= outlineMinValue0) {\n float a = _strokeColor.a;\n if (d <= outlineMinValue1) {\n a = a * smoothstep(outlineMinValue0, outlineMinValue1, d);\n }\n else {\n a = a * smoothstep(outlineMaxValue1, outlineMaxValue0, d);\n }\n gl_FragColor.rgb = mix(gl_FragColor.rgb * gl_FragColor.a, _strokeColor.rgb, a);\n gl_FragColor.a = gl_FragColor.a * (1.0 - a) + a;\n }\n }\n#endif\n\n#ifdef SRGB_DECODE\n gl_FragColor = sRGBToLinear(gl_FragColor);\n#endif\n}\n@end";
var vec4 = glmatrix.vec4;
graphicGL.Shader.import(sdfSpriteGLSL);
var PointsMesh = graphicGL.Mesh.extend(function() {
  var geometry = new graphicGL.Geometry({
    dynamic: true,
    attributes: {
      color: new graphicGL.Geometry.Attribute("color", "float", 4, "COLOR"),
      position: new graphicGL.Geometry.Attribute("position", "float", 3, "POSITION"),
      size: new graphicGL.Geometry.Attribute("size", "float", 1),
      prevPosition: new graphicGL.Geometry.Attribute("prevPosition", "float", 3),
      prevSize: new graphicGL.Geometry.Attribute("prevSize", "float", 1)
    }
  });
  Object.assign(geometry, verticesSortMixin);
  var material = new graphicGL.Material({
    shader: graphicGL.createShader("ecgl.sdfSprite"),
    transparent: true,
    depthMask: false
  });
  material.enableTexture("sprite");
  material.define("both", "VERTEX_COLOR");
  material.define("both", "VERTEX_SIZE");
  var sdfTexture = new graphicGL.Texture2D({
    image: document.createElement("canvas"),
    flipY: false
  });
  material.set("sprite", sdfTexture);
  geometry.pick = this._pick.bind(this);
  return {
    geometry,
    material,
    mode: graphicGL.Mesh.POINTS,
    sizeScale: 1
  };
}, {
  _pick: function(x, y, renderer, camera2, renderable, out) {
    var positionNDC = this._positionNDC;
    if (!positionNDC) {
      return;
    }
    var viewport = renderer.viewport;
    var ndcScaleX = 2 / viewport.width;
    var ndcScaleY = 2 / viewport.height;
    for (var i = this.geometry.vertexCount - 1; i >= 0; i--) {
      var idx;
      if (!this.geometry.indices) {
        idx = i;
      } else {
        idx = this.geometry.indices[i];
      }
      var cx = positionNDC[idx * 2];
      var cy = positionNDC[idx * 2 + 1];
      var size = this.geometry.attributes.size.get(idx) / this.sizeScale;
      var halfSize = size / 2;
      if (x > cx - halfSize * ndcScaleX && x < cx + halfSize * ndcScaleX && y > cy - halfSize * ndcScaleY && y < cy + halfSize * ndcScaleY) {
        var point = new graphicGL.Vector3();
        var pointWorld = new graphicGL.Vector3();
        this.geometry.attributes.position.get(idx, point.array);
        graphicGL.Vector3.transformMat4(pointWorld, point, this.worldTransform);
        out.push({
          vertexIndex: idx,
          point,
          pointWorld,
          target: this,
          distance: pointWorld.distance(camera2.getWorldPosition())
        });
      }
    }
  },
  updateNDCPosition: function(worldViewProjection, is2D, api) {
    var positionNDC = this._positionNDC;
    var geometry = this.geometry;
    if (!positionNDC || positionNDC.length / 2 !== geometry.vertexCount) {
      positionNDC = this._positionNDC = new Float32Array(geometry.vertexCount * 2);
    }
    var pos = vec4.create();
    for (var i = 0; i < geometry.vertexCount; i++) {
      geometry.attributes.position.get(i, pos);
      pos[3] = 1;
      vec4.transformMat4(pos, pos, worldViewProjection.array);
      vec4.scale(pos, pos, 1 / pos[3]);
      positionNDC[i * 2] = pos[0];
      positionNDC[i * 2 + 1] = pos[1];
    }
  }
});
var SDF_RANGE = 20;
var Z_2D = -10;
function isSymbolSizeSame(a, b) {
  return a && b && a[0] === b[0] && a[1] === b[1];
}
function PointsBuilder(is2D, api) {
  this.rootNode = new graphicGL.Node();
  this.is2D = is2D;
  this._labelsBuilder = new LabelsBuilder(256, 256, api);
  this._labelsBuilder.getMesh().renderOrder = 100;
  this.rootNode.add(this._labelsBuilder.getMesh());
  this._api = api;
  this._spriteImageCanvas = document.createElement("canvas");
  this._startDataIndex = 0;
  this._endDataIndex = 0;
  this._sizeScale = 1;
}
PointsBuilder.prototype = {
  constructor: PointsBuilder,
  /**
   * If highlight on over
   */
  highlightOnMouseover: true,
  update: function(seriesModel, ecModel, api, start, end) {
    var tmp = this._prevMesh;
    this._prevMesh = this._mesh;
    this._mesh = tmp;
    var data = seriesModel.getData();
    if (start == null) {
      start = 0;
    }
    if (end == null) {
      end = data.count();
    }
    this._startDataIndex = start;
    this._endDataIndex = end - 1;
    if (!this._mesh) {
      var material = this._prevMesh && this._prevMesh.material;
      this._mesh = new PointsMesh({
        // Render after axes
        renderOrder: 10,
        // FIXME
        frustumCulling: false
      });
      if (material) {
        this._mesh.material = material;
      }
    }
    var material = this._mesh.material;
    var geometry = this._mesh.geometry;
    var attributes = geometry.attributes;
    this.rootNode.remove(this._prevMesh);
    this.rootNode.add(this._mesh);
    this._setPositionTextureToMesh(this._mesh, this._positionTexture);
    var symbolInfo = this._getSymbolInfo(seriesModel, start, end);
    var dpr = api.getDevicePixelRatio();
    var itemStyle = seriesModel.getModel("itemStyle").getItemStyle();
    var largeMode = seriesModel.get("large");
    var pointSizeScale = 1;
    if (symbolInfo.maxSize > 2) {
      pointSizeScale = this._updateSymbolSprite(seriesModel, itemStyle, symbolInfo, dpr);
      material.enableTexture("sprite");
    } else {
      material.disableTexture("sprite");
    }
    attributes.position.init(end - start);
    var rgbaArr = [];
    if (largeMode) {
      material.undefine("VERTEX_SIZE");
      material.undefine("VERTEX_COLOR");
      var color = getVisualColor(data);
      var opacity = getVisualOpacity(data);
      graphicGL.parseColor(color, rgbaArr);
      rgbaArr[3] *= opacity;
      material.set({
        color: rgbaArr,
        "u_Size": symbolInfo.maxSize * this._sizeScale
      });
    } else {
      material.set({
        color: [1, 1, 1, 1]
      });
      material.define("VERTEX_SIZE");
      material.define("VERTEX_COLOR");
      attributes.size.init(end - start);
      attributes.color.init(end - start);
      this._originalOpacity = new Float32Array(end - start);
    }
    var points = data.getLayout("points");
    var positionArr = attributes.position.value;
    for (var i = 0; i < end - start; i++) {
      var i3 = i * 3;
      var i2 = i * 2;
      if (this.is2D) {
        positionArr[i3] = points[i2];
        positionArr[i3 + 1] = points[i2 + 1];
        positionArr[i3 + 2] = Z_2D;
      } else {
        positionArr[i3] = points[i3];
        positionArr[i3 + 1] = points[i3 + 1];
        positionArr[i3 + 2] = points[i3 + 2];
      }
      if (!largeMode) {
        var color = getItemVisualColor(data, i);
        var opacity = getItemVisualOpacity(data, i);
        graphicGL.parseColor(color, rgbaArr);
        rgbaArr[3] *= opacity;
        attributes.color.set(i, rgbaArr);
        if (rgbaArr[3] < 0.99) ;
        var symbolSize = data.getItemVisual(i, "symbolSize");
        symbolSize = symbolSize instanceof Array ? Math.max(symbolSize[0], symbolSize[1]) : symbolSize;
        if (isNaN(symbolSize)) {
          symbolSize = 0;
        }
        attributes.size.value[i] = symbolSize * pointSizeScale * this._sizeScale;
        this._originalOpacity[i] = rgbaArr[3];
      }
    }
    this._mesh.sizeScale = pointSizeScale;
    geometry.updateBoundingBox();
    geometry.dirty();
    this._updateMaterial(seriesModel, itemStyle);
    var coordSys = seriesModel.coordinateSystem;
    if (coordSys && coordSys.viewGL) {
      var methodName = coordSys.viewGL.isLinearSpace() ? "define" : "undefine";
      material[methodName]("fragment", "SRGB_DECODE");
    }
    if (!largeMode) {
      this._updateLabelBuilder(seriesModel, start, end);
    }
    this._updateHandler(seriesModel, ecModel, api);
    this._updateAnimation(seriesModel);
    this._api = api;
  },
  getPointsMesh: function() {
    return this._mesh;
  },
  updateLabels: function(highlightDataIndices) {
    this._labelsBuilder.updateLabels(highlightDataIndices);
  },
  hideLabels: function() {
    this.rootNode.remove(this._labelsBuilder.getMesh());
  },
  showLabels: function() {
    this.rootNode.add(this._labelsBuilder.getMesh());
  },
  dispose: function() {
    this._labelsBuilder.dispose();
  },
  _updateSymbolSprite: function(seriesModel, itemStyle, symbolInfo, dpr) {
    symbolInfo.maxSize = Math.min(symbolInfo.maxSize * 2, 200);
    var symbolSize = [];
    if (symbolInfo.aspect > 1) {
      symbolSize[0] = symbolInfo.maxSize;
      symbolSize[1] = symbolInfo.maxSize / symbolInfo.aspect;
    } else {
      symbolSize[1] = symbolInfo.maxSize;
      symbolSize[0] = symbolInfo.maxSize * symbolInfo.aspect;
    }
    symbolSize[0] = symbolSize[0] || 1;
    symbolSize[1] = symbolSize[1] || 1;
    if (this._symbolType !== symbolInfo.type || !isSymbolSizeSame(this._symbolSize, symbolSize) || this._lineWidth !== itemStyle.lineWidth) {
      spriteUtil.createSymbolSprite(symbolInfo.type, symbolSize, {
        fill: "#fff",
        lineWidth: itemStyle.lineWidth,
        stroke: "transparent",
        shadowColor: "transparent",
        minMargin: Math.min(symbolSize[0] / 2, 10)
      }, this._spriteImageCanvas);
      spriteUtil.createSDFFromCanvas(this._spriteImageCanvas, Math.min(this._spriteImageCanvas.width, 32), SDF_RANGE, this._mesh.material.get("sprite").image);
      this._symbolType = symbolInfo.type;
      this._symbolSize = symbolSize;
      this._lineWidth = itemStyle.lineWidth;
    }
    return this._spriteImageCanvas.width / symbolInfo.maxSize * dpr;
  },
  _updateMaterial: function(seriesModel, itemStyle) {
    var blendFunc = seriesModel.get("blendMode") === "lighter" ? graphicGL.additiveBlend : null;
    var material = this._mesh.material;
    material.blend = blendFunc;
    material.set("lineWidth", itemStyle.lineWidth / SDF_RANGE);
    var strokeColor = graphicGL.parseColor(itemStyle.stroke);
    material.set("strokeColor", strokeColor);
    material.transparent = true;
    material.depthMask = false;
    material.depthTest = !this.is2D;
    material.sortVertices = !this.is2D;
  },
  _updateLabelBuilder: function(seriesModel, start, end) {
    var data = seriesModel.getData();
    var geometry = this._mesh.geometry;
    var positionArr = geometry.attributes.position.value;
    var start = this._startDataIndex;
    var pointSizeScale = this._mesh.sizeScale;
    this._labelsBuilder.updateData(data, start, end);
    this._labelsBuilder.getLabelPosition = function(dataIndex, positionDesc, distance) {
      var idx3 = (dataIndex - start) * 3;
      return [positionArr[idx3], positionArr[idx3 + 1], positionArr[idx3 + 2]];
    };
    this._labelsBuilder.getLabelDistance = function(dataIndex, positionDesc, distance) {
      var size = geometry.attributes.size.get(dataIndex - start) / pointSizeScale;
      return size / 2 + distance;
    };
    this._labelsBuilder.updateLabels();
  },
  _updateAnimation: function(seriesModel) {
    graphicGL.updateVertexAnimation([["prevPosition", "position"], ["prevSize", "size"]], this._prevMesh, this._mesh, seriesModel);
  },
  _updateHandler: function(seriesModel, ecModel, api) {
    var data = seriesModel.getData();
    var pointsMesh = this._mesh;
    var self2 = this;
    var lastDataIndex = -1;
    var isCartesian3D = seriesModel.coordinateSystem && seriesModel.coordinateSystem.type === "cartesian3D";
    var grid3DModel;
    if (isCartesian3D) {
      grid3DModel = seriesModel.coordinateSystem.model;
    }
    pointsMesh.seriesIndex = seriesModel.seriesIndex;
    pointsMesh.off("mousemove");
    pointsMesh.off("mouseout");
    pointsMesh.on("mousemove", function(e2) {
      var dataIndex = e2.vertexIndex + self2._startDataIndex;
      if (dataIndex !== lastDataIndex) {
        if (this.highlightOnMouseover) {
          this.downplay(data, lastDataIndex);
          this.highlight(data, dataIndex);
          this._labelsBuilder.updateLabels([dataIndex]);
        }
        if (isCartesian3D) {
          api.dispatchAction({
            type: "grid3DShowAxisPointer",
            value: [data.get(seriesModel.coordDimToDataDim("x")[0], dataIndex), data.get(seriesModel.coordDimToDataDim("y")[0], dataIndex), data.get(seriesModel.coordDimToDataDim("z")[0], dataIndex)],
            grid3DIndex: grid3DModel.componentIndex
          });
        }
      }
      pointsMesh.dataIndex = dataIndex;
      lastDataIndex = dataIndex;
    }, this);
    pointsMesh.on("mouseout", function(e2) {
      var dataIndex = e2.vertexIndex + self2._startDataIndex;
      if (this.highlightOnMouseover) {
        this.downplay(data, dataIndex);
        this._labelsBuilder.updateLabels();
      }
      lastDataIndex = -1;
      pointsMesh.dataIndex = -1;
      if (isCartesian3D) {
        api.dispatchAction({
          type: "grid3DHideAxisPointer",
          grid3DIndex: grid3DModel.componentIndex
        });
      }
    }, this);
  },
  updateLayout: function(seriesModel, ecModel, api) {
    var data = seriesModel.getData();
    if (!this._mesh) {
      return;
    }
    var positionArr = this._mesh.geometry.attributes.position.value;
    var points = data.getLayout("points");
    if (this.is2D) {
      for (var i = 0; i < points.length / 2; i++) {
        var i3 = i * 3;
        var i2 = i * 2;
        positionArr[i3] = points[i2];
        positionArr[i3 + 1] = points[i2 + 1];
        positionArr[i3 + 2] = Z_2D;
      }
    } else {
      for (var i = 0; i < points.length; i++) {
        positionArr[i] = points[i];
      }
    }
    this._mesh.geometry.dirty();
    api.getZr().refresh();
  },
  updateView: function(camera2) {
    if (!this._mesh) {
      return;
    }
    var worldViewProjection = new Matrix4();
    Matrix4.mul(worldViewProjection, camera2.viewMatrix, this._mesh.worldTransform);
    Matrix4.mul(worldViewProjection, camera2.projectionMatrix, worldViewProjection);
    this._mesh.updateNDCPosition(worldViewProjection, this.is2D, this._api);
  },
  highlight: function(data, dataIndex) {
    if (dataIndex > this._endDataIndex || dataIndex < this._startDataIndex) {
      return;
    }
    var itemModel = data.getItemModel(dataIndex);
    var emphasisItemStyleModel = itemModel.getModel("emphasis.itemStyle");
    var emphasisColor = emphasisItemStyleModel.get("color");
    var emphasisOpacity = emphasisItemStyleModel.get("opacity");
    if (emphasisColor == null) {
      var color = getItemVisualColor(data, dataIndex);
      emphasisColor = lift(color, -0.4);
    }
    if (emphasisOpacity == null) {
      emphasisOpacity = getItemVisualOpacity(data, dataIndex);
    }
    var colorArr = graphicGL.parseColor(emphasisColor);
    colorArr[3] *= emphasisOpacity;
    this._mesh.geometry.attributes.color.set(dataIndex - this._startDataIndex, colorArr);
    this._mesh.geometry.dirtyAttribute("color");
    this._api.getZr().refresh();
  },
  downplay: function(data, dataIndex) {
    if (dataIndex > this._endDataIndex || dataIndex < this._startDataIndex) {
      return;
    }
    var color = getItemVisualColor(data, dataIndex);
    var opacity = getItemVisualOpacity(data, dataIndex);
    var colorArr = graphicGL.parseColor(color);
    colorArr[3] *= opacity;
    this._mesh.geometry.attributes.color.set(dataIndex - this._startDataIndex, colorArr);
    this._mesh.geometry.dirtyAttribute("color");
    this._api.getZr().refresh();
  },
  fadeOutAll: function(fadeOutPercent) {
    if (this._originalOpacity) {
      var geo = this._mesh.geometry;
      for (var i = 0; i < geo.vertexCount; i++) {
        var fadeOutOpacity = this._originalOpacity[i] * fadeOutPercent;
        geo.attributes.color.value[i * 4 + 3] = fadeOutOpacity;
      }
      geo.dirtyAttribute("color");
      this._api.getZr().refresh();
    }
  },
  fadeInAll: function() {
    this.fadeOutAll(1);
  },
  setPositionTexture: function(texture) {
    if (this._mesh) {
      this._setPositionTextureToMesh(this._mesh, texture);
    }
    this._positionTexture = texture;
  },
  removePositionTexture: function() {
    this._positionTexture = null;
    if (this._mesh) {
      this._setPositionTextureToMesh(this._mesh, null);
    }
  },
  setSizeScale: function(sizeScale) {
    if (sizeScale !== this._sizeScale) {
      if (this._mesh) {
        var originalSize = this._mesh.material.get("u_Size");
        this._mesh.material.set("u_Size", originalSize / this._sizeScale * sizeScale);
        var attributes = this._mesh.geometry.attributes;
        if (attributes.size.value) {
          for (var i = 0; i < attributes.size.value.length; i++) {
            attributes.size.value[i] = attributes.size.value[i] / this._sizeScale * sizeScale;
          }
        }
      }
      this._sizeScale = sizeScale;
    }
  },
  _setPositionTextureToMesh: function(mesh2, texture) {
    if (texture) {
      mesh2.material.set("positionTexture", texture);
    }
    mesh2.material[texture ? "enableTexture" : "disableTexture"]("positionTexture");
  },
  _getSymbolInfo: function(seriesModel, start, end) {
    if (seriesModel.get("large")) {
      var symbolSize = retrieve.firstNotNull(seriesModel.get("symbolSize"), 1);
      var maxSymbolSize;
      var symbolAspect;
      if (symbolSize instanceof Array) {
        maxSymbolSize = Math.max(symbolSize[0], symbolSize[1]);
        symbolAspect = symbolSize[0] / symbolSize[1];
      } else {
        maxSymbolSize = symbolSize;
        symbolAspect = 1;
      }
      return {
        maxSize: symbolSize,
        type: seriesModel.get("symbol"),
        aspect: symbolAspect
      };
    }
    var data = seriesModel.getData();
    var symbolAspect;
    var symbolType = data.getItemVisual(0, "symbol") || "circle";
    var maxSymbolSize = 0;
    for (var idx = start; idx < end; idx++) {
      var symbolSize = data.getItemVisual(idx, "symbolSize");
      var currentSymbolType = data.getItemVisual(idx, "symbol");
      var currentSymbolAspect;
      if (!(symbolSize instanceof Array)) {
        if (isNaN(symbolSize)) {
          continue;
        }
        currentSymbolAspect = 1;
        maxSymbolSize = Math.max(symbolSize, maxSymbolSize);
      } else {
        currentSymbolAspect = symbolSize[0] / symbolSize[1];
        maxSymbolSize = Math.max(Math.max(symbolSize[0], symbolSize[1]), maxSymbolSize);
      }
      symbolType = currentSymbolType;
      symbolAspect = currentSymbolAspect;
    }
    return {
      maxSize: maxSymbolSize,
      type: symbolType,
      aspect: symbolAspect
    };
  }
};
const Scatter3DView = ChartView.extend({
  type: "scatter3D",
  hasSymbolVisual: true,
  __ecgl__: true,
  init: function(ecModel, api) {
    this.groupGL = new graphicGL.Node();
    this._pointsBuilderList = [];
    this._currentStep = 0;
  },
  render: function(seriesModel, ecModel, api) {
    this.groupGL.removeAll();
    if (!seriesModel.getData().count()) {
      return;
    }
    var coordSys = seriesModel.coordinateSystem;
    if (coordSys && coordSys.viewGL) {
      coordSys.viewGL.add(this.groupGL);
      this._camera = coordSys.viewGL.camera;
      var pointsBuilder = this._pointsBuilderList[0];
      if (!pointsBuilder) {
        pointsBuilder = this._pointsBuilderList[0] = new PointsBuilder(false, api);
      }
      this._pointsBuilderList.length = 1;
      this.groupGL.add(pointsBuilder.rootNode);
      pointsBuilder.update(seriesModel, ecModel, api);
      pointsBuilder.updateView(coordSys.viewGL.camera);
    }
  },
  incrementalPrepareRender: function(seriesModel, ecModel, api) {
    var coordSys = seriesModel.coordinateSystem;
    if (coordSys && coordSys.viewGL) {
      coordSys.viewGL.add(this.groupGL);
      this._camera = coordSys.viewGL.camera;
    }
    this.groupGL.removeAll();
    this._currentStep = 0;
  },
  incrementalRender: function(params, seriesModel, ecModel, api) {
    if (params.end <= params.start) {
      return;
    }
    var pointsBuilder = this._pointsBuilderList[this._currentStep];
    if (!pointsBuilder) {
      pointsBuilder = new PointsBuilder(false, api);
      this._pointsBuilderList[this._currentStep] = pointsBuilder;
    }
    this.groupGL.add(pointsBuilder.rootNode);
    pointsBuilder.update(seriesModel, ecModel, api, params.start, params.end);
    pointsBuilder.updateView(seriesModel.coordinateSystem.viewGL.camera);
    this._currentStep++;
  },
  updateCamera: function() {
    this._pointsBuilderList.forEach(function(pointsBuilder) {
      pointsBuilder.updateView(this._camera);
    }, this);
  },
  highlight: function(seriesModel, ecModel, api, payload) {
    this._toggleStatus("highlight", seriesModel, ecModel, api, payload);
  },
  downplay: function(seriesModel, ecModel, api, payload) {
    this._toggleStatus("downplay", seriesModel, ecModel, api, payload);
  },
  _toggleStatus: function(status, seriesModel, ecModel, api, payload) {
    var data = seriesModel.getData();
    var dataIndex = retrieve.queryDataIndex(data, payload);
    var isHighlight = status === "highlight";
    if (dataIndex != null) {
      each(formatUtil.normalizeToArray(dataIndex), function(dataIdx) {
        for (var i = 0; i < this._pointsBuilderList.length; i++) {
          var pointsBuilder = this._pointsBuilderList[i];
          isHighlight ? pointsBuilder.highlight(data, dataIdx) : pointsBuilder.downplay(data, dataIdx);
        }
      }, this);
    } else {
      data.each(function(dataIdx) {
        for (var i = 0; i < this._pointsBuilderList.length; i++) {
          var pointsBuilder = this._pointsBuilderList[i];
          isHighlight ? pointsBuilder.highlight(data, dataIdx) : pointsBuilder.downplay(data, dataIdx);
        }
      });
    }
  },
  dispose: function() {
    this._pointsBuilderList.forEach(function(pointsBuilder) {
      pointsBuilder.dispose();
    });
    this.groupGL.removeAll();
  },
  remove: function() {
    this.groupGL.removeAll();
  }
});
function install$8(registers) {
  registers.registerChartView(Scatter3DView);
  registers.registerSeriesModel(Scatter3DSeries);
  registers.registerLayout({
    seriesType: "scatter3D",
    reset: function(seriesModel) {
      var coordSys = seriesModel.coordinateSystem;
      if (coordSys) {
        var coordDims = coordSys.dimensions;
        if (coordDims.length < 3) {
          return;
        }
        var dims = coordDims.map(function(coordDim) {
          return seriesModel.coordDimToDataDim(coordDim)[0];
        });
        var item = [];
        var out = [];
        return {
          progress: function(params, data) {
            var points = new Float32Array((params.end - params.start) * 3);
            for (var idx = params.start; idx < params.end; idx++) {
              var idx3 = (idx - params.start) * 3;
              item[0] = data.get(dims[0], idx);
              item[1] = data.get(dims[1], idx);
              item[2] = data.get(dims[2], idx);
              coordSys.dataToPoint(item, out);
              points[idx3] = out[0];
              points[idx3 + 1] = out[1];
              points[idx3 + 2] = out[2];
            }
            data.setLayout("points", points);
          }
        };
      }
    }
  });
}
use(install$8);
var vec3$2 = glmatrix.vec3;
var vec2$2 = glmatrix.vec2;
var normalize$1 = vec3$2.normalize;
var cross = vec3$2.cross;
var sub = vec3$2.sub;
var add = vec3$2.add;
var create$1 = vec3$2.create;
var normal = create$1();
var tangent = create$1();
var bitangent = create$1();
var halfVector = create$1();
var coord0 = [];
var coord1 = [];
function getCubicPointsOnGlobe(coords, coordSys) {
  vec2$2.copy(coord0, coords[0]);
  vec2$2.copy(coord1, coords[1]);
  var pts = [];
  var p02 = pts[0] = create$1();
  var p12 = pts[1] = create$1();
  var p22 = pts[2] = create$1();
  var p3 = pts[3] = create$1();
  coordSys.dataToPoint(coord0, p02);
  coordSys.dataToPoint(coord1, p3);
  normalize$1(normal, p02);
  sub(tangent, p3, p02);
  normalize$1(tangent, tangent);
  cross(bitangent, tangent, normal);
  normalize$1(bitangent, bitangent);
  cross(tangent, normal, bitangent);
  add(p12, normal, tangent);
  normalize$1(p12, p12);
  normalize$1(normal, p3);
  sub(tangent, p02, p3);
  normalize$1(tangent, tangent);
  cross(bitangent, tangent, normal);
  normalize$1(bitangent, bitangent);
  cross(tangent, normal, bitangent);
  add(p22, normal, tangent);
  normalize$1(p22, p22);
  add(halfVector, p02, p3);
  normalize$1(halfVector, halfVector);
  var projDist = vec3$2.dot(p02, halfVector);
  var cosTheta = vec3$2.dot(halfVector, p12);
  var len = (Math.max(vec3$2.len(p02), vec3$2.len(p3)) - projDist) / cosTheta * 2;
  vec3$2.scaleAndAdd(p12, p02, p12, len);
  vec3$2.scaleAndAdd(p22, p3, p22, len);
  return pts;
}
function getCubicPointsOnPlane(coords, coordSys, up) {
  var pts = [];
  var p02 = pts[0] = vec3$2.create();
  var p12 = pts[1] = vec3$2.create();
  var p22 = pts[2] = vec3$2.create();
  var p3 = pts[3] = vec3$2.create();
  coordSys.dataToPoint(coords[0], p02);
  coordSys.dataToPoint(coords[1], p3);
  var len = vec3$2.dist(p02, p3);
  vec3$2.lerp(p12, p02, p3, 0.3);
  vec3$2.lerp(p22, p02, p3, 0.3);
  vec3$2.scaleAndAdd(p12, p12, up, Math.min(len * 0.1, 10));
  vec3$2.scaleAndAdd(p22, p22, up, Math.min(len * 0.1, 10));
  return pts;
}
function getPolylinePoints(coords, coordSys) {
  var pts = new Float32Array(coords.length * 3);
  var off = 0;
  var pt = [];
  for (var i = 0; i < coords.length; i++) {
    coordSys.dataToPoint(coords[i], pt);
    pts[off++] = pt[0];
    pts[off++] = pt[1];
    pts[off++] = pt[2];
  }
  return pts;
}
function prepareCoords(data) {
  var coordsList = [];
  data.each(function(idx) {
    var itemModel = data.getItemModel(idx);
    var coords = itemModel.option instanceof Array ? itemModel.option : itemModel.getShallow("coords", true);
    coordsList.push(coords);
  });
  return {
    coordsList
  };
}
function layoutGlobe(seriesModel, coordSys) {
  var data = seriesModel.getData();
  var isPolyline = seriesModel.get("polyline");
  data.setLayout("lineType", isPolyline ? "polyline" : "cubicBezier");
  var res = prepareCoords(data);
  data.each(function(idx) {
    var coords = res.coordsList[idx];
    var getPointsMethod = isPolyline ? getPolylinePoints : getCubicPointsOnGlobe;
    data.setItemLayout(idx, getPointsMethod(coords, coordSys));
  });
}
function layoutOnPlane(seriesModel, coordSys, normal2) {
  var data = seriesModel.getData();
  var isPolyline = seriesModel.get("polyline");
  var res = prepareCoords(data);
  data.setLayout("lineType", isPolyline ? "polyline" : "cubicBezier");
  data.each(function(idx) {
    var coords = res.coordsList[idx];
    var pts = isPolyline ? getPolylinePoints(coords, coordSys) : getCubicPointsOnPlane(coords, coordSys, normal2);
    data.setItemLayout(idx, pts);
  });
}
function lines3DLayout(ecModel, api) {
  ecModel.eachSeriesByType("lines3D", function(seriesModel) {
    var coordSys = seriesModel.coordinateSystem;
    if (coordSys.type === "globe") {
      layoutGlobe(seriesModel, coordSys);
    } else if (coordSys.type === "geo3D") {
      layoutOnPlane(seriesModel, coordSys, [0, 1, 0]);
    } else if (coordSys.type === "mapbox3D" || coordSys.type === "maptalks3D") {
      layoutOnPlane(seriesModel, coordSys, [0, 0, 1]);
    }
  });
}
const Lines3DSeries = SeriesModel.extend({
  type: "series.lines3D",
  dependencies: ["globe"],
  visualStyleAccessPath: "lineStyle",
  visualDrawType: "stroke",
  getInitialData: function(option, ecModel) {
    var lineData = new SeriesData(["value"], this);
    lineData.hasItemOption = false;
    lineData.initData(option.data, [], function(dataItem, dimName, dataIndex, dimIndex) {
      if (dataItem instanceof Array) {
        return NaN;
      } else {
        lineData.hasItemOption = true;
        var value = dataItem.value;
        if (value != null) {
          return value instanceof Array ? value[dimIndex] : value;
        }
      }
    });
    return lineData;
  },
  defaultOption: {
    coordinateSystem: "globe",
    globeIndex: 0,
    geo3DIndex: 0,
    zlevel: -10,
    polyline: false,
    effect: {
      show: false,
      period: 4,
      // Trail width
      trailWidth: 4,
      trailLength: 0.2,
      spotIntensity: 6
    },
    silent: true,
    // Support source-over, lighter
    blendMode: "source-over",
    lineStyle: {
      width: 1,
      opacity: 0.5
      // color
    }
  }
});
const trail2GLSL = "@export ecgl.trail2.vertex\nattribute vec3 position: POSITION;\nattribute vec3 positionPrev;\nattribute vec3 positionNext;\nattribute float offset;\nattribute float dist;\nattribute float distAll;\nattribute float start;\n\nattribute vec4 a_Color : COLOR;\n\nuniform mat4 worldViewProjection : WORLDVIEWPROJECTION;\nuniform vec4 viewport : VIEWPORT;\nuniform float near : NEAR;\n\nuniform float speed : 0;\nuniform float trailLength: 0.3;\nuniform float time;\nuniform float period: 1000;\n\nuniform float spotSize: 1;\n\nvarying vec4 v_Color;\nvarying float v_Percent;\nvarying float v_SpotPercent;\n\n@import ecgl.common.wireframe.vertexHeader\n\n@import ecgl.lines3D.clipNear\n\nvoid main()\n{\n @import ecgl.lines3D.expandLine\n\n gl_Position = currProj;\n\n v_Color = a_Color;\n\n @import ecgl.common.wireframe.vertexMain\n\n#ifdef CONSTANT_SPEED\n float t = mod((speed * time + start) / distAll, 1. + trailLength) - trailLength;\n#else\n float t = mod((time + start) / period, 1. + trailLength) - trailLength;\n#endif\n\n float trailLen = distAll * trailLength;\n\n v_Percent = (dist - t * distAll) / trailLen;\n\n v_SpotPercent = spotSize / distAll;\n\n }\n@end\n\n\n@export ecgl.trail2.fragment\n\nuniform vec4 color : [1.0, 1.0, 1.0, 1.0];\nuniform float spotIntensity: 5;\n\nvarying vec4 v_Color;\nvarying float v_Percent;\nvarying float v_SpotPercent;\n\n@import ecgl.common.wireframe.fragmentHeader\n\n@import clay.util.srgb\n\nvoid main()\n{\n if (v_Percent > 1.0 || v_Percent < 0.0) {\n discard;\n }\n\n float fade = v_Percent;\n\n#ifdef SRGB_DECODE\n gl_FragColor = sRGBToLinear(color * v_Color);\n#else\n gl_FragColor = color * v_Color;\n#endif\n\n @import ecgl.common.wireframe.fragmentMain\n\n if (v_Percent > (1.0 - v_SpotPercent)) {\n gl_FragColor.rgb *= spotIntensity;\n }\n\n gl_FragColor.a *= fade;\n}\n\n@end";
var vec3$1 = glmatrix.vec3;
function sign(a) {
  return a > 0 ? 1 : -1;
}
graphicGL.Shader.import(trail2GLSL);
const TrailMesh2 = graphicGL.Mesh.extend(function() {
  var material = new graphicGL.Material({
    shader: new graphicGL.Shader(graphicGL.Shader.source("ecgl.trail2.vertex"), graphicGL.Shader.source("ecgl.trail2.fragment")),
    transparent: true,
    depthMask: false
  });
  var geometry = new LinesGeometry$2({
    dynamic: true
  });
  geometry.createAttribute("dist", "float", 1);
  geometry.createAttribute("distAll", "float", 1);
  geometry.createAttribute("start", "float", 1);
  return {
    geometry,
    material,
    culling: false,
    $ignorePicking: true
  };
}, {
  updateData: function(data, api, lines3DGeometry) {
    var seriesModel = data.hostModel;
    var geometry = this.geometry;
    var effectModel = seriesModel.getModel("effect");
    var size = effectModel.get("trailWidth") * api.getDevicePixelRatio();
    var trailLength = effectModel.get("trailLength");
    var speed = seriesModel.get("effect.constantSpeed");
    var period = seriesModel.get("effect.period") * 1e3;
    var useConstantSpeed = speed != null;
    useConstantSpeed ? this.material.set("speed", speed / 1e3) : this.material.set("period", period);
    this.material[useConstantSpeed ? "define" : "undefine"]("vertex", "CONSTANT_SPEED");
    var isPolyline = seriesModel.get("polyline");
    geometry.trailLength = trailLength;
    this.material.set("trailLength", trailLength);
    geometry.resetOffset();
    ["position", "positionPrev", "positionNext"].forEach(function(attrName) {
      geometry.attributes[attrName].value = lines3DGeometry.attributes[attrName].value;
    });
    var extraAttrs = ["dist", "distAll", "start", "offset", "color"];
    extraAttrs.forEach(function(attrName) {
      geometry.attributes[attrName].init(geometry.vertexCount);
    });
    geometry.indices = lines3DGeometry.indices;
    var colorArr = [];
    var effectColor = effectModel.get("trailColor");
    var effectOpacity = effectModel.get("trailOpacity");
    var hasEffectColor = effectColor != null;
    var hasEffectOpacity = effectOpacity != null;
    this.updateWorldTransform();
    var xScale = this.worldTransform.x.len();
    var yScale = this.worldTransform.y.len();
    var zScale = this.worldTransform.z.len();
    var vertexOffset = 0;
    var maxDistance = 0;
    data.each(function(idx) {
      var pts = data.getItemLayout(idx);
      var opacity = hasEffectOpacity ? effectOpacity : getItemVisualOpacity(data, idx);
      var color = getItemVisualColor(data, idx);
      if (opacity == null) {
        opacity = 1;
      }
      colorArr = graphicGL.parseColor(hasEffectColor ? effectColor : color, colorArr);
      colorArr[3] *= opacity;
      var vertexCount = isPolyline ? lines3DGeometry.getPolylineVertexCount(pts) : lines3DGeometry.getCubicCurveVertexCount(pts[0], pts[1], pts[2], pts[3]);
      var dist = 0;
      var pos = [];
      var posPrev = [];
      for (var i = vertexOffset; i < vertexOffset + vertexCount; i++) {
        geometry.attributes.position.get(i, pos);
        pos[0] *= xScale;
        pos[1] *= yScale;
        pos[2] *= zScale;
        if (i > vertexOffset) {
          dist += vec3$1.dist(pos, posPrev);
        }
        geometry.attributes.dist.set(i, dist);
        vec3$1.copy(posPrev, pos);
      }
      maxDistance = Math.max(maxDistance, dist);
      var randomStart = Math.random() * (useConstantSpeed ? dist : period);
      for (var i = vertexOffset; i < vertexOffset + vertexCount; i++) {
        geometry.attributes.distAll.set(i, dist);
        geometry.attributes.start.set(i, randomStart);
        geometry.attributes.offset.set(i, sign(lines3DGeometry.attributes.offset.get(i)) * size / 2);
        geometry.attributes.color.set(i, colorArr);
      }
      vertexOffset += vertexCount;
    });
    this.material.set("spotSize", maxDistance * 0.1 * trailLength);
    this.material.set("spotIntensity", effectModel.get("spotIntensity"));
    geometry.dirty();
  },
  setAnimationTime: function(time) {
    this.material.set("time", time);
  }
});
graphicGL.Shader.import(lines3DGLSL);
function getCoordSysSize(coordSys) {
  if (coordSys.radius != null) {
    return coordSys.radius;
  }
  if (coordSys.size != null) {
    return Math.max(coordSys.size[0], coordSys.size[1], coordSys.size[2]);
  } else {
    return 100;
  }
}
const Lines3DView = ChartView.extend({
  type: "lines3D",
  __ecgl__: true,
  init: function(ecModel, api) {
    this.groupGL = new graphicGL.Node();
    this._meshLinesMaterial = new graphicGL.Material({
      shader: graphicGL.createShader("ecgl.meshLines3D"),
      transparent: true,
      depthMask: false
    });
    this._linesMesh = new graphicGL.Mesh({
      geometry: new LinesGeometry$2(),
      material: this._meshLinesMaterial,
      $ignorePicking: true
    });
    this._trailMesh = new TrailMesh2();
  },
  render: function(seriesModel, ecModel, api) {
    this.groupGL.add(this._linesMesh);
    var coordSys = seriesModel.coordinateSystem;
    var data = seriesModel.getData();
    if (coordSys && coordSys.viewGL) {
      var viewGL = coordSys.viewGL;
      viewGL.add(this.groupGL);
      this._updateLines(seriesModel, ecModel, api);
      var methodName = coordSys.viewGL.isLinearSpace() ? "define" : "undefine";
      this._linesMesh.material[methodName]("fragment", "SRGB_DECODE");
      this._trailMesh.material[methodName]("fragment", "SRGB_DECODE");
    }
    var trailMesh = this._trailMesh;
    trailMesh.stopAnimation();
    if (seriesModel.get("effect.show")) {
      this.groupGL.add(trailMesh);
      trailMesh.updateData(data, api, this._linesMesh.geometry);
      trailMesh.__time = trailMesh.__time || 0;
      var time = 3600 * 1e3;
      this._curveEffectsAnimator = trailMesh.animate("", {
        loop: true
      }).when(time, {
        __time: time
      }).during(function() {
        trailMesh.setAnimationTime(trailMesh.__time);
      }).start();
    } else {
      this.groupGL.remove(trailMesh);
      this._curveEffectsAnimator = null;
    }
    this._linesMesh.material.blend = this._trailMesh.material.blend = seriesModel.get("blendMode") === "lighter" ? graphicGL.additiveBlend : null;
  },
  pauseEffect: function() {
    if (this._curveEffectsAnimator) {
      this._curveEffectsAnimator.pause();
    }
  },
  resumeEffect: function() {
    if (this._curveEffectsAnimator) {
      this._curveEffectsAnimator.resume();
    }
  },
  toggleEffect: function() {
    var animator = this._curveEffectsAnimator;
    if (animator) {
      animator.isPaused() ? animator.resume() : animator.pause();
    }
  },
  _updateLines: function(seriesModel, ecModel, api) {
    var data = seriesModel.getData();
    var coordSys = seriesModel.coordinateSystem;
    var geometry = this._linesMesh.geometry;
    var isPolyline = seriesModel.get("polyline");
    geometry.expandLine = true;
    var size = getCoordSysSize(coordSys);
    geometry.segmentScale = size / 20;
    var lineWidthQueryPath = "lineStyle.width".split(".");
    var dpr = api.getDevicePixelRatio();
    data.each(function(idx) {
      var itemModel = data.getItemModel(idx);
      var lineWidth = itemModel.get(lineWidthQueryPath);
      if (lineWidth == null) {
        lineWidth = 1;
      }
      data.setItemVisual(idx, "lineWidth", lineWidth);
    });
    geometry.useNativeLine = false;
    var nVertex = 0;
    var nTriangle = 0;
    data.each(function(idx) {
      var pts = data.getItemLayout(idx);
      if (isPolyline) {
        nVertex += geometry.getPolylineVertexCount(pts);
        nTriangle += geometry.getPolylineTriangleCount(pts);
      } else {
        nVertex += geometry.getCubicCurveVertexCount(pts[0], pts[1], pts[2], pts[3]);
        nTriangle += geometry.getCubicCurveTriangleCount(pts[0], pts[1], pts[2], pts[3]);
      }
    });
    geometry.setVertexCount(nVertex);
    geometry.setTriangleCount(nTriangle);
    geometry.resetOffset();
    var colorArr = [];
    data.each(function(idx) {
      var pts = data.getItemLayout(idx);
      var color = getItemVisualColor(data, idx);
      var opacity = getItemVisualOpacity(data, idx);
      var lineWidth = data.getItemVisual(idx, "lineWidth") * dpr;
      if (opacity == null) {
        opacity = 1;
      }
      colorArr = graphicGL.parseColor(color, colorArr);
      colorArr[3] *= opacity;
      if (isPolyline) {
        geometry.addPolyline(pts, colorArr, lineWidth);
      } else {
        geometry.addCubicCurve(pts[0], pts[1], pts[2], pts[3], colorArr, lineWidth);
      }
    });
    geometry.dirty();
  },
  remove: function() {
    this.groupGL.removeAll();
  },
  dispose: function() {
    this.groupGL.removeAll();
  }
});
function install$7(registers) {
  registers.registerChartView(Lines3DView);
  registers.registerSeriesModel(Lines3DSeries);
  registers.registerLayout(lines3DLayout);
  registers.registerAction({
    type: "lines3DPauseEffect",
    event: "lines3deffectpaused",
    update: "series.lines3D:pauseEffect"
  }, function() {
  });
  registers.registerAction({
    type: "lines3DResumeEffect",
    event: "lines3deffectresumed",
    update: "series.lines3D:resumeEffect"
  }, function() {
  });
  registers.registerAction({
    type: "lines3DToggleEffect",
    event: "lines3deffectchanged",
    update: "series.lines3D:toggleEffect"
  }, function() {
  });
}
use(install$7);
function transformPolygon$1(coordSys, poly) {
  var ret2 = [];
  for (var i = 0; i < poly.length; i++) {
    ret2.push(coordSys.dataToPoint(poly[i]));
  }
  return ret2;
}
var Polygons3DSeries = SeriesModel.extend({
  type: "series.polygons3D",
  getRegionModel: function(idx) {
    return this.getData().getItemModel(idx);
  },
  getRegionPolygonCoords: function(idx) {
    var coordSys = this.coordinateSystem;
    var itemModel = this.getData().getItemModel(idx);
    var coords = itemModel.option instanceof Array ? itemModel.option : itemModel.getShallow("coords");
    if (!itemModel.get("multiPolygon")) {
      coords = [coords];
    }
    var out = [];
    for (var i = 0; i < coords.length; i++) {
      var interiors = [];
      for (var k = 1; k < coords[i].length; k++) {
        interiors.push(transformPolygon$1(coordSys, coords[i][k]));
      }
      out.push({
        exterior: transformPolygon$1(coordSys, coords[i][0]),
        interiors
      });
    }
    return out;
  },
  getInitialData: function(option) {
    var polygonsData = new SeriesData(["value"], this);
    polygonsData.hasItemOption = false;
    polygonsData.initData(option.data, [], function(dataItem, dimName, dataIndex, dimIndex) {
      if (dataItem instanceof Array) {
        return NaN;
      } else {
        polygonsData.hasItemOption = true;
        var value = dataItem.value;
        if (value != null) {
          return value instanceof Array ? value[dimIndex] : value;
        }
      }
    });
    return polygonsData;
  },
  defaultOption: {
    show: true,
    data: null,
    multiPolygon: false,
    progressiveThreshold: 1e3,
    progressive: 1e3,
    zlevel: -10,
    label: {
      show: false,
      // Distance in 3d space.
      distance: 2,
      textStyle: {
        fontSize: 20,
        color: "#000",
        backgroundColor: "rgba(255,255,255,0.7)",
        padding: 3,
        borderRadius: 4
      }
    },
    itemStyle: {
      color: "#fff",
      borderWidth: 0,
      borderColor: "#333"
    },
    emphasis: {
      itemStyle: {
        color: "#639fc0"
      },
      label: {
        show: true
      }
    }
  }
});
merge(Polygons3DSeries.prototype, componentShadingMixin);
const Polygons3DView = ChartView.extend({
  type: "polygons3D",
  __ecgl__: true,
  init: function(ecModel, api) {
    this.groupGL = new graphicGL.Node();
    this._geo3DBuilderList = [];
    this._currentStep = 0;
  },
  render: function(seriesModel, ecModel, api) {
    this.groupGL.removeAll();
    var coordSys = seriesModel.coordinateSystem;
    if (coordSys && coordSys.viewGL) {
      coordSys.viewGL.add(this.groupGL);
    }
    var geo3DBuilder = this._geo3DBuilderList[0];
    if (!geo3DBuilder) {
      geo3DBuilder = new Geo3DBuilder(api);
      geo3DBuilder.extrudeY = coordSys.type !== "mapbox3D" && coordSys.type !== "maptalks3D";
      this._geo3DBuilderList[0] = geo3DBuilder;
    }
    this._updateShaderDefines(coordSys, geo3DBuilder);
    geo3DBuilder.update(seriesModel, ecModel, api);
    this._geo3DBuilderList.length = 1;
    this.groupGL.add(geo3DBuilder.rootNode);
  },
  incrementalPrepareRender: function(seriesModel, ecModel, api) {
    this.groupGL.removeAll();
    var coordSys = seriesModel.coordinateSystem;
    if (coordSys && coordSys.viewGL) {
      coordSys.viewGL.add(this.groupGL);
    }
    this._currentStep = 0;
  },
  incrementalRender: function(params, seriesModel, ecModel, api) {
    var geo3DBuilder = this._geo3DBuilderList[this._currentStep];
    var coordSys = seriesModel.coordinateSystem;
    if (!geo3DBuilder) {
      geo3DBuilder = new Geo3DBuilder(api);
      geo3DBuilder.extrudeY = coordSys.type !== "mapbox3D" && coordSys.type !== "maptalks3D";
      this._geo3DBuilderList[this._currentStep] = geo3DBuilder;
    }
    geo3DBuilder.update(seriesModel, ecModel, api, params.start, params.end);
    this.groupGL.add(geo3DBuilder.rootNode);
    this._updateShaderDefines(coordSys, geo3DBuilder);
    this._currentStep++;
  },
  _updateShaderDefines: function(coordSys, geo3DBuilder) {
    var methodName = coordSys.viewGL.isLinearSpace() ? "define" : "undefine";
    geo3DBuilder.rootNode.traverse(function(mesh2) {
      if (mesh2.material) {
        mesh2.material[methodName]("fragment", "SRGB_DECODE");
        if (coordSys.type === "mapbox3D" || coordSys.type === "maptalks3D") {
          mesh2.material.define("fragment", "NORMAL_UP_AXIS", 2);
          mesh2.material.define("fragment", "NORMAL_FRONT_AXIS", 1);
        }
      }
    });
  },
  remove: function() {
    this.groupGL.removeAll();
  },
  dispose: function() {
    this.groupGL.removeAll();
    this._geo3DBuilderList.forEach(function(geo3DBuilder) {
      geo3DBuilder.dispose();
    });
  }
});
function install$6(registers) {
  registers.registerChartView(Polygons3DView);
  registers.registerSeriesModel(Polygons3DSeries);
}
use(install$6);
var SurfaceSeries = SeriesModel.extend({
  type: "series.surface",
  dependencies: ["globe", "grid3D", "geo3D"],
  visualStyleAccessPath: "itemStyle",
  formatTooltip: function(dataIndex) {
    return formatTooltip(this, dataIndex);
  },
  getInitialData: function(option, ecModel) {
    var data = option.data;
    function validateDimension(dimOpts) {
      return !(isNaN(dimOpts.min) || isNaN(dimOpts.max) || isNaN(dimOpts.step));
    }
    function getPrecision(dimOpts) {
      var getPrecision2 = getPrecisionSafe;
      return Math.max(getPrecision2(dimOpts.min), getPrecision2(dimOpts.max), getPrecision2(dimOpts.step)) + 1;
    }
    if (!data) {
      if (!option.parametric) {
        var equation = option.equation || {};
        var xOpts = equation.x || {};
        var yOpts = equation.y || {};
        ["x", "y"].forEach(function(dim) {
          if (!validateDimension(equation[dim])) {
            return;
          }
        });
        if (typeof equation.z !== "function") {
          return;
        }
        var xCount = Math.floor((xOpts.max + xOpts.step - xOpts.min) / xOpts.step);
        var yCount = Math.floor((yOpts.max + yOpts.step - yOpts.min) / yOpts.step);
        data = new Float32Array(xCount * yCount * 3);
        var xPrecision = getPrecision(xOpts);
        var yPrecision = getPrecision(yOpts);
        var off = 0;
        for (var j = 0; j < yCount; j++) {
          for (var i = 0; i < xCount; i++) {
            var x = i * xOpts.step + xOpts.min;
            var y = j * yOpts.step + yOpts.min;
            var x2 = round(Math.min(x, xOpts.max), xPrecision);
            var y2 = round(Math.min(y, yOpts.max), yPrecision);
            var z = equation.z(x2, y2);
            data[off++] = x2;
            data[off++] = y2;
            data[off++] = z;
          }
        }
      } else {
        var parametricEquation = option.parametricEquation || {};
        var uOpts = parametricEquation.u || {};
        var vOpts = parametricEquation.v || {};
        ["u", "v"].forEach(function(dim) {
          if (!validateDimension(parametricEquation[dim])) {
            return;
          }
        });
        ["x", "y", "z"].forEach(function(dim) {
          if (typeof parametricEquation[dim] !== "function") {
            return;
          }
        });
        var uCount = Math.floor((uOpts.max + uOpts.step - uOpts.min) / uOpts.step);
        var vCount = Math.floor((vOpts.max + vOpts.step - vOpts.min) / vOpts.step);
        data = new Float32Array(uCount * vCount * 5);
        var uPrecision = getPrecision(uOpts);
        var vPrecision = getPrecision(vOpts);
        var off = 0;
        for (var j = 0; j < vCount; j++) {
          for (var i = 0; i < uCount; i++) {
            var u = i * uOpts.step + uOpts.min;
            var v = j * vOpts.step + vOpts.min;
            var u2 = round(Math.min(u, uOpts.max), uPrecision);
            var v2 = round(Math.min(v, vOpts.max), vPrecision);
            var x = parametricEquation.x(u2, v2);
            var y = parametricEquation.y(u2, v2);
            var z = parametricEquation.z(u2, v2);
            data[off++] = x;
            data[off++] = y;
            data[off++] = z;
            data[off++] = u2;
            data[off++] = v2;
          }
        }
      }
    }
    var dims = ["x", "y", "z"];
    if (option.parametric) {
      dims.push("u", "v");
    }
    var list = createList(this, dims, data);
    return list;
  },
  defaultOption: {
    coordinateSystem: "cartesian3D",
    zlevel: -10,
    // Cartesian coordinate system
    grid3DIndex: 0,
    // Surface needs lambert shading to show the difference
    shading: "lambert",
    // If parametric surface
    parametric: false,
    wireframe: {
      show: true,
      lineStyle: {
        color: "rgba(0,0,0,0.5)",
        width: 1
      }
    },
    /**
     * Generate surface data from z = f(x, y) equation
     */
    equation: {
      // [min, max, step]
      x: {
        min: -1,
        max: 1,
        step: 0.1
      },
      y: {
        min: -1,
        max: 1,
        step: 0.1
      },
      z: null
    },
    parametricEquation: {
      // [min, max, step]
      u: {
        min: -1,
        max: 1,
        step: 0.1
      },
      v: {
        min: -1,
        max: 1,
        step: 0.1
      },
      // [x, y, z] = f(x, y)
      x: null,
      y: null,
      z: null
    },
    // Shape of give data
    // It is an array to specify rows and columns.
    // For example [30, 30]
    dataShape: null,
    itemStyle: {
      // Color
    },
    animationDurationUpdate: 500
  }
});
merge(SurfaceSeries.prototype, componentShadingMixin);
var vec3 = glmatrix.vec3;
function isPointsNaN(pt) {
  return isNaN(pt[0]) || isNaN(pt[1]) || isNaN(pt[2]);
}
const SurfaceView = ChartView.extend({
  type: "surface",
  __ecgl__: true,
  init: function(ecModel, api) {
    this.groupGL = new graphicGL.Node();
  },
  render: function(seriesModel, ecModel, api) {
    var tmp = this._prevSurfaceMesh;
    this._prevSurfaceMesh = this._surfaceMesh;
    this._surfaceMesh = tmp;
    if (!this._surfaceMesh) {
      this._surfaceMesh = this._createSurfaceMesh();
    }
    this.groupGL.remove(this._prevSurfaceMesh);
    this.groupGL.add(this._surfaceMesh);
    var coordSys = seriesModel.coordinateSystem;
    var shading = seriesModel.get("shading");
    var data = seriesModel.getData();
    var shadingPrefix = "ecgl." + shading;
    if (!this._surfaceMesh.material || this._surfaceMesh.material.shader.name !== shadingPrefix) {
      this._surfaceMesh.material = graphicGL.createMaterial(shadingPrefix, ["VERTEX_COLOR", "DOUBLE_SIDED"]);
    }
    graphicGL.setMaterialFromModel(shading, this._surfaceMesh.material, seriesModel, api);
    if (coordSys && coordSys.viewGL) {
      coordSys.viewGL.add(this.groupGL);
      var methodName = coordSys.viewGL.isLinearSpace() ? "define" : "undefine";
      this._surfaceMesh.material[methodName]("fragment", "SRGB_DECODE");
    }
    var isParametric = seriesModel.get("parametric");
    var dataShape = seriesModel.get("dataShape");
    if (!dataShape) {
      dataShape = this._getDataShape(data, isParametric);
    }
    var wireframeModel = seriesModel.getModel("wireframe");
    var wireframeLineWidth = wireframeModel.get("lineStyle.width");
    var showWireframe = wireframeModel.get("show") && wireframeLineWidth > 0;
    this._updateSurfaceMesh(this._surfaceMesh, seriesModel, dataShape, showWireframe);
    var material = this._surfaceMesh.material;
    if (showWireframe) {
      material.define("WIREFRAME_QUAD");
      material.set("wireframeLineWidth", wireframeLineWidth);
      material.set("wireframeLineColor", graphicGL.parseColor(wireframeModel.get("lineStyle.color")));
    } else {
      material.undefine("WIREFRAME_QUAD");
    }
    this._initHandler(seriesModel, api);
    this._updateAnimation(seriesModel);
  },
  _updateAnimation: function(seriesModel) {
    graphicGL.updateVertexAnimation([["prevPosition", "position"], ["prevNormal", "normal"]], this._prevSurfaceMesh, this._surfaceMesh, seriesModel);
  },
  _createSurfaceMesh: function() {
    var mesh2 = new graphicGL.Mesh({
      geometry: new graphicGL.Geometry({
        dynamic: true,
        sortTriangles: true
      }),
      shadowDepthMaterial: new graphicGL.Material({
        shader: new graphicGL.Shader(graphicGL.Shader.source("ecgl.sm.depth.vertex"), graphicGL.Shader.source("ecgl.sm.depth.fragment"))
      }),
      culling: false,
      // Render after axes
      renderOrder: 10,
      // Render normal in normal pass
      renderNormal: true
    });
    mesh2.geometry.createAttribute("barycentric", "float", 4);
    mesh2.geometry.createAttribute("prevPosition", "float", 3);
    mesh2.geometry.createAttribute("prevNormal", "float", 3);
    Object.assign(mesh2.geometry, trianglesSortMixin);
    return mesh2;
  },
  _initHandler: function(seriesModel, api) {
    var data = seriesModel.getData();
    var surfaceMesh = this._surfaceMesh;
    var coordSys = seriesModel.coordinateSystem;
    function getNearestPointIdx(triangle, point) {
      var nearestDist = Infinity;
      var nearestIdx = -1;
      var pos = [];
      for (var i = 0; i < triangle.length; i++) {
        surfaceMesh.geometry.attributes.position.get(triangle[i], pos);
        var dist = vec3.dist(point.array, pos);
        if (dist < nearestDist) {
          nearestDist = dist;
          nearestIdx = triangle[i];
        }
      }
      return nearestIdx;
    }
    surfaceMesh.seriesIndex = seriesModel.seriesIndex;
    var lastDataIndex = -1;
    surfaceMesh.off("mousemove");
    surfaceMesh.off("mouseout");
    surfaceMesh.on("mousemove", function(e2) {
      var idx = getNearestPointIdx(e2.triangle, e2.point);
      if (idx >= 0) {
        var point = [];
        surfaceMesh.geometry.attributes.position.get(idx, point);
        var value = coordSys.pointToData(point);
        var minDist = Infinity;
        var dataIndex = -1;
        var item = [];
        for (var i = 0; i < data.count(); i++) {
          item[0] = data.get("x", i);
          item[1] = data.get("y", i);
          item[2] = data.get("z", i);
          var dist = vec3.squaredDistance(item, value);
          if (dist < minDist) {
            dataIndex = i;
            minDist = dist;
          }
        }
        if (dataIndex !== lastDataIndex) {
          api.dispatchAction({
            type: "grid3DShowAxisPointer",
            value
          });
        }
        lastDataIndex = dataIndex;
        surfaceMesh.dataIndex = dataIndex;
      } else {
        surfaceMesh.dataIndex = -1;
      }
    }, this);
    surfaceMesh.on("mouseout", function(e2) {
      lastDataIndex = -1;
      surfaceMesh.dataIndex = -1;
      api.dispatchAction({
        type: "grid3DHideAxisPointer"
      });
    }, this);
  },
  _updateSurfaceMesh: function(surfaceMesh, seriesModel, dataShape, showWireframe) {
    var geometry = surfaceMesh.geometry;
    var data = seriesModel.getData();
    var pointsArr = data.getLayout("points");
    var invalidDataCount = 0;
    data.each(function(idx2) {
      if (!data.hasValue(idx2)) {
        invalidDataCount++;
      }
    });
    var needsSplitQuad = invalidDataCount || showWireframe;
    var positionAttr = geometry.attributes.position;
    var normalAttr = geometry.attributes.normal;
    var texcoordAttr = geometry.attributes.texcoord0;
    var barycentricAttr = geometry.attributes.barycentric;
    var colorAttr = geometry.attributes.color;
    var row = dataShape[0];
    var column = dataShape[1];
    var shading = seriesModel.get("shading");
    var needsNormal = shading !== "color";
    if (needsSplitQuad) {
      var vertexCount = (row - 1) * (column - 1) * 4;
      positionAttr.init(vertexCount);
      if (showWireframe) {
        barycentricAttr.init(vertexCount);
      }
    } else {
      positionAttr.value = new Float32Array(pointsArr);
    }
    colorAttr.init(geometry.vertexCount);
    texcoordAttr.init(geometry.vertexCount);
    var quadToTriangle = [0, 3, 1, 1, 3, 2];
    var quadBarycentric = [[1, 1, 0, 0], [0, 1, 0, 1], [1, 0, 0, 1], [1, 0, 1, 0]];
    var indices = geometry.indices = new (geometry.vertexCount > 65535 ? Uint32Array : Uint16Array)((row - 1) * (column - 1) * 6);
    var getQuadIndices = function(i2, j2, out) {
      out[1] = i2 * column + j2;
      out[0] = i2 * column + j2 + 1;
      out[3] = (i2 + 1) * column + j2 + 1;
      out[2] = (i2 + 1) * column + j2;
    };
    var isTransparent = false;
    if (needsSplitQuad) {
      var quadIndices = [];
      var pos = [];
      var faceOffset = 0;
      if (needsNormal) {
        normalAttr.init(geometry.vertexCount);
      } else {
        normalAttr.value = null;
      }
      var pts = [[], [], []];
      var v21 = [], v32 = [];
      var normal2 = vec3.create();
      var getFromArray = function(arr, idx2, out) {
        var idx32 = idx2 * 3;
        out[0] = arr[idx32];
        out[1] = arr[idx32 + 1];
        out[2] = arr[idx32 + 2];
        return out;
      };
      var vertexNormals = new Float32Array(pointsArr.length);
      var vertexColors = new Float32Array(pointsArr.length / 3 * 4);
      for (var i = 0; i < data.count(); i++) {
        if (data.hasValue(i)) {
          var rgbaArr = graphicGL.parseColor(getItemVisualColor(data, i));
          var opacity = getItemVisualOpacity(data, i);
          opacity != null && (rgbaArr[3] *= opacity);
          if (rgbaArr[3] < 0.99) {
            isTransparent = true;
          }
          for (var k = 0; k < 4; k++) {
            vertexColors[i * 4 + k] = rgbaArr[k];
          }
        }
      }
      var farPoints = [1e7, 1e7, 1e7];
      for (var i = 0; i < row - 1; i++) {
        for (var j = 0; j < column - 1; j++) {
          var dataIndex = i * (column - 1) + j;
          var vertexOffset = dataIndex * 4;
          getQuadIndices(i, j, quadIndices);
          var invisibleQuad = false;
          for (var k = 0; k < 4; k++) {
            getFromArray(pointsArr, quadIndices[k], pos);
            if (isPointsNaN(pos)) {
              invisibleQuad = true;
            }
          }
          for (var k = 0; k < 4; k++) {
            if (invisibleQuad) {
              positionAttr.set(vertexOffset + k, farPoints);
            } else {
              getFromArray(pointsArr, quadIndices[k], pos);
              positionAttr.set(vertexOffset + k, pos);
            }
            if (showWireframe) {
              barycentricAttr.set(vertexOffset + k, quadBarycentric[k]);
            }
          }
          for (var k = 0; k < 6; k++) {
            indices[faceOffset++] = quadToTriangle[k] + vertexOffset;
          }
          if (needsNormal && !invisibleQuad) {
            for (var k = 0; k < 2; k++) {
              var k3 = k * 3;
              for (var m = 0; m < 3; m++) {
                var idx = quadIndices[quadToTriangle[k3] + m];
                getFromArray(pointsArr, idx, pts[m]);
              }
              vec3.sub(v21, pts[0], pts[1]);
              vec3.sub(v32, pts[1], pts[2]);
              vec3.cross(normal2, v21, v32);
              for (var m = 0; m < 3; m++) {
                var idx3 = quadIndices[quadToTriangle[k3] + m] * 3;
                vertexNormals[idx3] = vertexNormals[idx3] + normal2[0];
                vertexNormals[idx3 + 1] = vertexNormals[idx3 + 1] + normal2[1];
                vertexNormals[idx3 + 2] = vertexNormals[idx3 + 2] + normal2[2];
              }
            }
          }
        }
      }
      if (needsNormal) {
        for (var i = 0; i < vertexNormals.length / 3; i++) {
          getFromArray(vertexNormals, i, normal2);
          vec3.normalize(normal2, normal2);
          vertexNormals[i * 3] = normal2[0];
          vertexNormals[i * 3 + 1] = normal2[1];
          vertexNormals[i * 3 + 2] = normal2[2];
        }
      }
      var rgbaArr = [];
      var uvArr = [];
      for (var i = 0; i < row - 1; i++) {
        for (var j = 0; j < column - 1; j++) {
          var dataIndex = i * (column - 1) + j;
          var vertexOffset = dataIndex * 4;
          getQuadIndices(i, j, quadIndices);
          for (var k = 0; k < 4; k++) {
            for (var m = 0; m < 4; m++) {
              rgbaArr[m] = vertexColors[quadIndices[k] * 4 + m];
            }
            colorAttr.set(vertexOffset + k, rgbaArr);
            if (needsNormal) {
              getFromArray(vertexNormals, quadIndices[k], normal2);
              normalAttr.set(vertexOffset + k, normal2);
            }
            var idx = quadIndices[k];
            uvArr[0] = idx % column / (column - 1);
            uvArr[1] = Math.floor(idx / column) / (row - 1);
            texcoordAttr.set(vertexOffset + k, uvArr);
          }
          dataIndex++;
        }
      }
    } else {
      var uvArr = [];
      for (var i = 0; i < data.count(); i++) {
        uvArr[0] = i % column / (column - 1);
        uvArr[1] = Math.floor(i / column) / (row - 1);
        var rgbaArr = graphicGL.parseColor(getItemVisualColor(data, i));
        var opacity = getItemVisualOpacity(data, i);
        opacity != null && (rgbaArr[3] *= opacity);
        if (rgbaArr[3] < 0.99) {
          isTransparent = true;
        }
        colorAttr.set(i, rgbaArr);
        texcoordAttr.set(i, uvArr);
      }
      var quadIndices = [];
      var cursor = 0;
      for (var i = 0; i < row - 1; i++) {
        for (var j = 0; j < column - 1; j++) {
          getQuadIndices(i, j, quadIndices);
          for (var k = 0; k < 6; k++) {
            indices[cursor++] = quadIndices[quadToTriangle[k]];
          }
        }
      }
      if (needsNormal) {
        geometry.generateVertexNormals();
      } else {
        normalAttr.value = null;
      }
    }
    if (surfaceMesh.material.get("normalMap")) {
      geometry.generateTangents();
    }
    geometry.updateBoundingBox();
    geometry.dirty();
    surfaceMesh.material.transparent = isTransparent;
    surfaceMesh.material.depthMask = !isTransparent;
  },
  _getDataShape: function(data, isParametric) {
    var prevX = -Infinity;
    var rowCount = 0;
    var columnCount = 0;
    var mayInvalid = false;
    var rowDim = isParametric ? "u" : "x";
    var dataCount = data.count();
    for (var i = 0; i < dataCount; i++) {
      var x = data.get(rowDim, i);
      if (x < prevX) {
        columnCount = 0;
        rowCount++;
      }
      prevX = x;
      columnCount++;
    }
    if (!rowCount || columnCount === 1) {
      mayInvalid = true;
    }
    if (!mayInvalid) {
      return [rowCount + 1, columnCount];
    }
    var rows = Math.floor(Math.sqrt(dataCount));
    while (rows > 0) {
      if (Math.floor(dataCount / rows) === dataCount / rows) {
        return [rows, dataCount / rows];
      }
      rows--;
    }
    rows = Math.floor(Math.sqrt(dataCount));
    return [rows, rows];
  },
  dispose: function() {
    this.groupGL.removeAll();
  },
  remove: function() {
    this.groupGL.removeAll();
  }
});
function install$5(registers) {
  registers.registerChartView(SurfaceView);
  registers.registerSeriesModel(SurfaceSeries);
  registers.registerLayout(function(ecModel, api) {
    ecModel.eachSeriesByType("surface", function(surfaceModel) {
      var cartesian = surfaceModel.coordinateSystem;
      if (!cartesian || cartesian.type !== "cartesian3D") ;
      var data = surfaceModel.getData();
      var points = new Float32Array(3 * data.count());
      var nanPoint = [NaN, NaN, NaN];
      if (cartesian && cartesian.type === "cartesian3D") {
        var coordDims = cartesian.dimensions;
        var dims = coordDims.map(function(coordDim) {
          return surfaceModel.coordDimToDataDim(coordDim)[0];
        });
        data.each(dims, function(x, y, z, idx) {
          var pt;
          if (!data.hasValue(idx)) {
            pt = nanPoint;
          } else {
            pt = cartesian.dataToPoint([x, y, z]);
          }
          points[idx * 3] = pt[0];
          points[idx * 3 + 1] = pt[1];
          points[idx * 3 + 2] = pt[2];
        });
      }
      data.setLayout("points", points);
    });
  });
}
use(install$5);
function transformPolygon(mapbox3DCoordSys, poly) {
  var newPoly = [];
  for (var k = 0; k < poly.length; k++) {
    newPoly.push(mapbox3DCoordSys.dataToPoint(poly[k]));
  }
  return newPoly;
}
var Map3DSeries = SeriesModel.extend({
  type: "series.map3D",
  layoutMode: "box",
  coordinateSystem: null,
  visualStyleAccessPath: "itemStyle",
  optionUpdated: function(newOpt) {
    var coordSysType = this.get("coordinateSystem");
    if (coordSysType == null || coordSysType === "geo3D") {
      return;
    }
    if (this.get("groundPlane.show")) {
      this.option.groundPlane.show = false;
    }
    this._geo = null;
  },
  getInitialData: function(option) {
    option.data = this.getFilledRegions(option.data, option.map);
    var dimensions = createDimensions(option.data, {
      coordDimensions: ["value"]
    });
    var list = new SeriesData(dimensions, this);
    list.initData(option.data);
    var regionModelMap = {};
    list.each(function(idx) {
      var name = list.getName(idx);
      var itemModel = list.getItemModel(idx);
      regionModelMap[name] = itemModel;
    });
    this._regionModelMap = regionModelMap;
    return list;
  },
  formatTooltip: function(dataIndex) {
    return formatTooltip(this, dataIndex);
  },
  getRegionModel: function(idx) {
    var name = this.getData().getName(idx);
    return this._regionModelMap[name] || new Model(null, this);
  },
  getRegionPolygonCoords: function(idx) {
    var coordSys = this.coordinateSystem;
    var name = this.getData().getName(idx);
    if (coordSys.transform) {
      var region = coordSys.getRegion(name);
      return region ? region.geometries : [];
    } else {
      if (!this._geo) {
        this._geo = geo3DCreator.createGeo3D(this);
      }
      var region = this._geo.getRegion(name);
      var ret2 = [];
      for (var k = 0; k < region.geometries.length; k++) {
        var geo = region.geometries[k];
        var interiors = [];
        var exterior = transformPolygon(coordSys, geo.exterior);
        if (interiors && interiors.length) {
          for (var m = 0; m < geo.interiors.length; m++) {
            interiors.push(transformPolygon(coordSys, interiors[m]));
          }
        }
        ret2.push({
          interiors,
          exterior
        });
      }
      return ret2;
    }
  },
  /**
   * Format label
   * @param {string} name Region name
   * @param {string} [status='normal'] 'normal' or 'emphasis'
   * @return {string}
   */
  getFormattedLabel: function(dataIndex, status) {
    var text = formatUtil.getFormattedLabel(this, dataIndex, status);
    if (text == null) {
      text = this.getData().getName(dataIndex);
    }
    return text;
  },
  defaultOption: {
    // Support geo3D, mapbox, maptalks3D
    coordinateSystem: "geo3D",
    // itemStyle: {},
    // height,
    // label: {}
    data: null
  }
});
merge(Map3DSeries.prototype, geo3DModelMixin);
merge(Map3DSeries.prototype, componentViewControlMixin);
merge(Map3DSeries.prototype, componentPostEffectMixin);
merge(Map3DSeries.prototype, componentLightMixin);
merge(Map3DSeries.prototype, componentShadingMixin);
const Map3DView = ChartView.extend({
  type: "map3D",
  __ecgl__: true,
  init: function(ecModel, api) {
    this._geo3DBuilder = new Geo3DBuilder(api);
    this.groupGL = new graphicGL.Node();
  },
  render: function(map3DModel, ecModel, api) {
    var coordSys = map3DModel.coordinateSystem;
    if (!coordSys || !coordSys.viewGL) {
      return;
    }
    this.groupGL.add(this._geo3DBuilder.rootNode);
    coordSys.viewGL.add(this.groupGL);
    if (coordSys.type === "geo3D") {
      if (!this._sceneHelper) {
        this._sceneHelper = new SceneHelper();
        this._sceneHelper.initLight(this.groupGL);
      }
      this._sceneHelper.setScene(coordSys.viewGL.scene);
      this._sceneHelper.updateLight(map3DModel);
      coordSys.viewGL.setPostEffect(map3DModel.getModel("postEffect"), api);
      coordSys.viewGL.setTemporalSuperSampling(map3DModel.getModel("temporalSuperSampling"));
      var control = this._control;
      if (!control) {
        control = this._control = new OrbitControl({
          zr: api.getZr()
        });
        this._control.init();
      }
      var viewControlModel = map3DModel.getModel("viewControl");
      control.setViewGL(coordSys.viewGL);
      control.setFromViewControlModel(viewControlModel, 0);
      control.off("update");
      control.on("update", function() {
        api.dispatchAction({
          type: "map3DChangeCamera",
          alpha: control.getAlpha(),
          beta: control.getBeta(),
          distance: control.getDistance(),
          from: this.uid,
          map3DId: map3DModel.id
        });
      });
      this._geo3DBuilder.extrudeY = true;
    } else {
      if (this._control) {
        this._control.dispose();
        this._control = null;
      }
      if (this._sceneHelper) {
        this._sceneHelper.dispose();
        this._sceneHelper = null;
      }
      map3DModel.getData().getLayout("geo3D");
      this._geo3DBuilder.extrudeY = false;
    }
    this._geo3DBuilder.update(map3DModel, ecModel, api, 0, map3DModel.getData().count());
    var srgbDefineMethod = coordSys.viewGL.isLinearSpace() ? "define" : "undefine";
    this._geo3DBuilder.rootNode.traverse(function(mesh2) {
      if (mesh2.material) {
        mesh2.material[srgbDefineMethod]("fragment", "SRGB_DECODE");
      }
    });
  },
  afterRender: function(map3DModel, ecModel, api, layerGL) {
    var renderer = layerGL.renderer;
    var coordSys = map3DModel.coordinateSystem;
    if (coordSys && coordSys.type === "geo3D") {
      this._sceneHelper.updateAmbientCubemap(renderer, map3DModel, api);
      this._sceneHelper.updateSkybox(renderer, map3DModel, api);
    }
  },
  dispose: function() {
    this.groupGL.removeAll();
    this._control.dispose();
    this._geo3DBuilder.dispose();
  }
});
function install$4(registers) {
  install$e(registers);
  registers.registerChartView(Map3DView);
  registers.registerSeriesModel(Map3DSeries);
  registers.registerAction({
    type: "map3DChangeCamera",
    event: "map3dcamerachanged",
    update: "series:updateCamera"
  }, function(payload, ecModel) {
    ecModel.eachComponent({
      mainType: "series",
      subType: "map3D",
      query: payload
    }, function(componentModel) {
      componentModel.setView(payload);
    });
  });
}
use(install$4);
const ScatterGLSeries = SeriesModel.extend({
  type: "series.scatterGL",
  dependencies: ["grid", "polar", "geo", "singleAxis"],
  visualStyleAccessPath: "itemStyle",
  hasSymbolVisual: true,
  getInitialData: function() {
    return createList$1(this);
  },
  defaultOption: {
    coordinateSystem: "cartesian2d",
    zlevel: 10,
    progressive: 1e5,
    progressiveThreshold: 1e5,
    // Cartesian coordinate system
    // xAxisIndex: 0,
    // yAxisIndex: 0,
    // Polar coordinate system
    // polarIndex: 0,
    // Geo coordinate system
    // geoIndex: 0,
    large: false,
    symbol: "circle",
    symbolSize: 10,
    // symbolSize scale when zooming.
    zoomScale: 0,
    // Support source-over, lighter
    blendMode: "source-over",
    itemStyle: {
      opacity: 0.8
    },
    postEffect: {
      enable: false,
      colorCorrection: {
        exposure: 0,
        brightness: 0,
        contrast: 1,
        saturation: 1,
        enable: true
      }
    }
  }
});
function create() {
  return [1, 0, 0, 1, 0, 0];
}
function invert(out, a) {
  var aa = a[0];
  var ac = a[2];
  var atx = a[4];
  var ab = a[1];
  var ad = a[3];
  var aty = a[5];
  var det = aa * ad - ab * ac;
  if (!det) {
    return null;
  }
  det = 1 / det;
  out[0] = ad * det;
  out[1] = -ab * det;
  out[2] = -ac * det;
  out[3] = aa * det;
  out[4] = (ac * aty - ad * atx) * det;
  out[5] = (ab * atx - aa * aty) * det;
  return out;
}
function GLViewHelper(viewGL) {
  this.viewGL = viewGL;
}
GLViewHelper.prototype.reset = function(seriesModel, api) {
  this._updateCamera(api.getWidth(), api.getHeight(), api.getDevicePixelRatio());
  this._viewTransform = create();
  this.updateTransform(seriesModel, api);
};
GLViewHelper.prototype.updateTransform = function(seriesModel, api) {
  var coordinateSystem = seriesModel.coordinateSystem;
  if (coordinateSystem.getRoamTransform) {
    invert(this._viewTransform, coordinateSystem.getRoamTransform());
    this._setCameraTransform(this._viewTransform);
    api.getZr().refresh();
  }
};
GLViewHelper.prototype.dataToPoint = function(coordSys, data, pt) {
  pt = coordSys.dataToPoint(data, null, pt);
  var viewTransform = this._viewTransform;
  if (viewTransform) {
    applyTransform(pt, pt, viewTransform);
  }
};
GLViewHelper.prototype.removeTransformInPoint = function(pt) {
  if (this._viewTransform) {
    applyTransform(pt, pt, this._viewTransform);
  }
  return pt;
};
GLViewHelper.prototype.getZoom = function() {
  if (this._viewTransform) {
    var m = this._viewTransform;
    return 1 / Math.max(Math.sqrt(m[0] * m[0] + m[1] * m[1]), Math.sqrt(m[2] * m[2] + m[3] * m[3]));
  }
  return 1;
};
GLViewHelper.prototype._setCameraTransform = function(m) {
  var camera2 = this.viewGL.camera;
  camera2.position.set(m[4], m[5], 0);
  camera2.scale.set(Math.sqrt(m[0] * m[0] + m[1] * m[1]), Math.sqrt(m[2] * m[2] + m[3] * m[3]), 1);
};
GLViewHelper.prototype._updateCamera = function(width, height, dpr) {
  this.viewGL.setViewport(0, 0, width, height, dpr);
  var camera2 = this.viewGL.camera;
  camera2.left = camera2.top = 0;
  camera2.bottom = height;
  camera2.right = width;
  camera2.near = 0;
  camera2.far = 100;
};
const ScatterGLView = ChartView.extend({
  type: "scatterGL",
  __ecgl__: true,
  init: function(ecModel, api) {
    this.groupGL = new graphicGL.Node();
    this.viewGL = new ViewGL("orthographic");
    this.viewGL.add(this.groupGL);
    this._pointsBuilderList = [];
    this._currentStep = 0;
    this._sizeScale = 1;
    this._glViewHelper = new GLViewHelper(this.viewGL);
  },
  render: function(seriesModel, ecModel, api) {
    this.groupGL.removeAll();
    this._glViewHelper.reset(seriesModel, api);
    if (!seriesModel.getData().count()) {
      return;
    }
    var pointsBuilder = this._pointsBuilderList[0];
    if (!pointsBuilder) {
      pointsBuilder = this._pointsBuilderList[0] = new PointsBuilder(true, api);
    }
    this._pointsBuilderList.length = 1;
    this.groupGL.add(pointsBuilder.rootNode);
    this._removeTransformInPoints(seriesModel.getData().getLayout("points"));
    pointsBuilder.update(seriesModel, ecModel, api);
    this.viewGL.setPostEffect(seriesModel.getModel("postEffect"), api);
  },
  incrementalPrepareRender: function(seriesModel, ecModel, api) {
    this.groupGL.removeAll();
    this._glViewHelper.reset(seriesModel, api);
    this._currentStep = 0;
    this.viewGL.setPostEffect(seriesModel.getModel("postEffect"), api);
  },
  incrementalRender: function(params, seriesModel, ecModel, api) {
    if (params.end <= params.start) {
      return;
    }
    var pointsBuilder = this._pointsBuilderList[this._currentStep];
    if (!pointsBuilder) {
      pointsBuilder = new PointsBuilder(true, api);
      this._pointsBuilderList[this._currentStep] = pointsBuilder;
    }
    this.groupGL.add(pointsBuilder.rootNode);
    this._removeTransformInPoints(seriesModel.getData().getLayout("points"));
    pointsBuilder.setSizeScale(this._sizeScale);
    pointsBuilder.update(seriesModel, ecModel, api, params.start, params.end);
    api.getZr().refresh();
    this._currentStep++;
  },
  updateTransform: function(seriesModel, ecModel, api) {
    if (seriesModel.coordinateSystem.getRoamTransform) {
      this._glViewHelper.updateTransform(seriesModel, api);
      var zoom = this._glViewHelper.getZoom();
      var sizeScale = Math.max((seriesModel.get("zoomScale") || 0) * (zoom - 1) + 1, 0);
      this._sizeScale = sizeScale;
      this._pointsBuilderList.forEach(function(pointsBuilder) {
        pointsBuilder.setSizeScale(sizeScale);
      });
    }
  },
  _removeTransformInPoints: function(points) {
    if (!points) {
      return;
    }
    var pt = [];
    for (var i = 0; i < points.length; i += 2) {
      pt[0] = points[i];
      pt[1] = points[i + 1];
      this._glViewHelper.removeTransformInPoint(pt);
      points[i] = pt[0];
      points[i + 1] = pt[1];
    }
  },
  dispose: function() {
    this.groupGL.removeAll();
    this._pointsBuilderList.forEach(function(pointsBuilder) {
      pointsBuilder.dispose();
    });
  },
  remove: function() {
    this.groupGL.removeAll();
  }
});
function install$3(registers) {
  registers.registerChartView(ScatterGLView);
  registers.registerSeriesModel(ScatterGLSeries);
  registers.registerLayout({
    seriesType: "scatterGL",
    reset: function(seriesModel) {
      var coordSys = seriesModel.coordinateSystem;
      var data = seriesModel.getData();
      var progress;
      if (coordSys) {
        var dims = coordSys.dimensions.map(function(dim) {
          return data.mapDimension(dim);
        }).slice(0, 2);
        var pt = [];
        if (dims.length === 1) {
          progress = function(params) {
            var points = new Float32Array((params.end - params.start) * 2);
            for (var idx = params.start; idx < params.end; idx++) {
              var offset = (idx - params.start) * 2;
              var x = data.get(dims[0], idx);
              var pt2 = coordSys.dataToPoint(x);
              points[offset] = pt2[0];
              points[offset + 1] = pt2[1];
            }
            data.setLayout("points", points);
          };
        } else if (dims.length === 2) {
          progress = function(params) {
            var points = new Float32Array((params.end - params.start) * 2);
            for (var idx = params.start; idx < params.end; idx++) {
              var offset = (idx - params.start) * 2;
              var x = data.get(dims[0], idx);
              var y = data.get(dims[1], idx);
              pt[0] = x;
              pt[1] = y;
              pt = coordSys.dataToPoint(pt);
              points[offset] = pt[0];
              points[offset + 1] = pt[1];
            }
            data.setLayout("points", points);
          };
        }
      }
      return {
        progress
      };
    }
  });
}
use(install$3);
function createGraphFromNodeEdge(nodes, edges, hostModel, directed, beforeLink) {
  var graph = new Graph$1(directed);
  for (var i = 0; i < nodes.length; i++) {
    graph.addNode(retrieve.firstNotNull(
      // Id, name, dataIndex
      nodes[i].id,
      nodes[i].name,
      i
    ), i);
  }
  var linkNameList = [];
  var validEdges = [];
  var linkCount = 0;
  for (var i = 0; i < edges.length; i++) {
    var link = edges[i];
    var source = link.source;
    var target = link.target;
    if (graph.addEdge(source, target, linkCount)) {
      validEdges.push(link);
      linkNameList.push(retrieve.firstNotNull(link.id, source + " > " + target));
      linkCount++;
    }
  }
  var nodeData;
  var dimensionNames = createDimensions(nodes, {
    coordDimensions: ["value"]
  });
  nodeData = new SeriesData(dimensionNames, hostModel);
  nodeData.initData(nodes);
  var edgeData = new SeriesData(["value"], hostModel);
  edgeData.initData(validEdges, linkNameList);
  beforeLink && beforeLink(nodeData, edgeData);
  linkSeriesData({
    mainData: nodeData,
    struct: graph,
    structAttr: "graph",
    datas: {
      node: nodeData,
      edge: edgeData
    },
    datasAttr: {
      node: "data",
      edge: "edgeData"
    }
  });
  graph.update();
  return graph;
}
var GraphSeries = SeriesModel.extend({
  type: "series.graphGL",
  visualStyleAccessPath: "itemStyle",
  hasSymbolVisual: true,
  init: function(option) {
    GraphSeries.superApply(this, "init", arguments);
    this.legendDataProvider = function() {
      return this._categoriesData;
    };
    this._updateCategoriesData();
  },
  mergeOption: function(option) {
    GraphSeries.superApply(this, "mergeOption", arguments);
    this._updateCategoriesData();
  },
  getFormattedLabel: function(dataIndex, status, dataType, dimIndex) {
    var text = formatUtil.getFormattedLabel(this, dataIndex, status, dataType, dimIndex);
    if (text == null) {
      var data = this.getData();
      var lastDim = data.dimensions[data.dimensions.length - 1];
      text = data.get(lastDim, dataIndex);
    }
    return text;
  },
  getInitialData: function(option, ecModel) {
    var edges = option.edges || option.links || [];
    var nodes = option.data || option.nodes || [];
    var self2 = this;
    if (nodes && edges) {
      return createGraphFromNodeEdge(nodes, edges, this, true, beforeLink).data;
    }
    function beforeLink(nodeData, edgeData) {
      nodeData.wrapMethod("getItemModel", function(model) {
        const categoriesModels = self2._categoriesModels;
        const categoryIdx = model.getShallow("category");
        const categoryModel = categoriesModels[categoryIdx];
        if (categoryModel) {
          categoryModel.parentModel = model.parentModel;
          model.parentModel = categoryModel;
        }
        return model;
      });
      const oldGetModel = ecModel.getModel([]).getModel;
      function newGetModel(path, parentModel) {
        const model = oldGetModel.call(this, path, parentModel);
        model.resolveParentPath = resolveParentPath;
        return model;
      }
      edgeData.wrapMethod("getItemModel", function(model) {
        model.resolveParentPath = resolveParentPath;
        model.getModel = newGetModel;
        return model;
      });
      function resolveParentPath(pathArr) {
        if (pathArr && (pathArr[0] === "label" || pathArr[1] === "label")) {
          const newPathArr = pathArr.slice();
          if (pathArr[0] === "label") {
            newPathArr[0] = "edgeLabel";
          } else if (pathArr[1] === "label") {
            newPathArr[1] = "edgeLabel";
          }
          return newPathArr;
        }
        return pathArr;
      }
    }
  },
  /**
   * @return {module:echarts/data/Graph}
   */
  getGraph: function() {
    return this.getData().graph;
  },
  /**
   * @return {module:echarts/data/List}
   */
  getEdgeData: function() {
    return this.getGraph().edgeData;
  },
  /**
   * @return {module:echarts/data/List}
   */
  getCategoriesData: function() {
    return this._categoriesData;
  },
  /**
   * @override
   */
  formatTooltip: function(dataIndex, multipleSeries, dataType) {
    if (dataType === "edge") {
      var nodeData = this.getData();
      var params = this.getDataParams(dataIndex, dataType);
      var edge = nodeData.graph.getEdgeByIndex(dataIndex);
      var sourceName = nodeData.getName(edge.node1.dataIndex);
      var targetName = nodeData.getName(edge.node2.dataIndex);
      var html = [];
      sourceName != null && html.push(sourceName);
      targetName != null && html.push(targetName);
      html = encodeHTML(html.join(" > "));
      if (params.value) {
        html += " : " + encodeHTML(params.value);
      }
      return html;
    } else {
      return GraphSeries.superApply(this, "formatTooltip", arguments);
    }
  },
  _updateCategoriesData: function() {
    var categories = (this.option.categories || []).map(function(category) {
      return category.value != null ? category : Object.assign({
        value: 0
      }, category);
    });
    var categoriesData = new SeriesData(["value"], this);
    categoriesData.initData(categories);
    this._categoriesData = categoriesData;
    this._categoriesModels = categoriesData.mapArray(function(idx) {
      return categoriesData.getItemModel(idx, true);
    });
  },
  setView: function(payload) {
    if (payload.zoom != null) {
      this.option.zoom = payload.zoom;
    }
    if (payload.offset != null) {
      this.option.offset = payload.offset;
    }
  },
  setNodePosition: function(points) {
    for (var i = 0; i < points.length / 2; i++) {
      var x = points[i * 2];
      var y = points[i * 2 + 1];
      var opt = this.getData().getRawDataItem(i);
      opt.x = x;
      opt.y = y;
    }
  },
  isAnimationEnabled: function() {
    return GraphSeries.superCall(this, "isAnimationEnabled") && !(this.get("layout") === "force" && this.get("force.layoutAnimation"));
  },
  defaultOption: {
    zlevel: 10,
    z: 2,
    legendHoverLink: true,
    // Only support forceAtlas2
    layout: "forceAtlas2",
    // Configuration of force directed layout
    forceAtlas2: {
      initLayout: null,
      GPU: true,
      steps: 1,
      // barnesHutOptimize
      // Maxp layout steps.
      maxSteps: 1e3,
      repulsionByDegree: true,
      linLogMode: false,
      strongGravityMode: false,
      gravity: 1,
      // scaling: 1.0,
      edgeWeightInfluence: 1,
      // Edge weight range.
      edgeWeight: [1, 4],
      // Node weight range.
      nodeWeight: [1, 4],
      // jitterTolerence: 0.1,
      preventOverlap: false,
      gravityCenter: null
    },
    focusNodeAdjacency: true,
    focusNodeAdjacencyOn: "mouseover",
    left: "center",
    top: "center",
    // right: null,
    // bottom: null,
    // width: '80%',
    // height: '80%',
    symbol: "circle",
    symbolSize: 5,
    roam: false,
    // Default on center of graph
    center: null,
    zoom: 1,
    // categories: [],
    // data: []
    // Or
    // nodes: []
    //
    // links: []
    // Or
    // edges: []
    label: {
      show: false,
      formatter: "{b}",
      position: "right",
      distance: 5,
      textStyle: {
        fontSize: 14
      }
    },
    itemStyle: {},
    lineStyle: {
      color: "#aaa",
      width: 1,
      opacity: 0.5
    },
    emphasis: {
      label: {
        show: true
      }
    },
    animation: false
  }
});
var vec2$1 = glmatrix.vec2;
var sampleLinePoints = [[0, 0], [1, 1]];
var LinesGeometry$1 = Geometry.extend(
  function() {
    return {
      segmentScale: 4,
      dynamic: true,
      /**
       * Need to use mesh to expand lines if lineWidth > MAX_LINE_WIDTH
       */
      useNativeLine: true,
      attributes: {
        position: new Geometry.Attribute("position", "float", 2, "POSITION"),
        normal: new Geometry.Attribute("normal", "float", 2),
        offset: new Geometry.Attribute("offset", "float", 1),
        color: new Geometry.Attribute("color", "float", 4, "COLOR")
      }
    };
  },
  /** @lends module: echarts-gl/util/geometry/LinesGeometry.prototype */
  {
    /**
     * Reset offset
     */
    resetOffset: function() {
      this._vertexOffset = 0;
      this._faceOffset = 0;
      this._itemVertexOffsets = [];
    },
    /**
     * @param {number} nVertex
     */
    setVertexCount: function(nVertex) {
      var attributes = this.attributes;
      if (this.vertexCount !== nVertex) {
        attributes.position.init(nVertex);
        attributes.color.init(nVertex);
        if (!this.useNativeLine) {
          attributes.offset.init(nVertex);
          attributes.normal.init(nVertex);
        }
        if (nVertex > 65535) {
          if (this.indices instanceof Uint16Array) {
            this.indices = new Uint32Array(this.indices);
          }
        } else {
          if (this.indices instanceof Uint32Array) {
            this.indices = new Uint16Array(this.indices);
          }
        }
      }
    },
    /**
     * @param {number} nTriangle
     */
    setTriangleCount: function(nTriangle) {
      if (this.triangleCount !== nTriangle) {
        if (nTriangle === 0) {
          this.indices = null;
        } else {
          this.indices = this.vertexCount > 65535 ? new Uint32Array(nTriangle * 3) : new Uint16Array(nTriangle * 3);
        }
      }
    },
    _getCubicCurveApproxStep: function(p02, p12, p22, p3) {
      var len = vec2$1.dist(p02, p12) + vec2$1.dist(p22, p12) + vec2$1.dist(p3, p22);
      var step = 1 / (len + 1) * this.segmentScale;
      return step;
    },
    /**
     * Get vertex count of cubic curve
     * @param {Array.<number>} p0
     * @param {Array.<number>} p1
     * @param {Array.<number>} p2
     * @param {Array.<number>} p3
     * @return number
     */
    getCubicCurveVertexCount: function(p02, p12, p22, p3) {
      var step = this._getCubicCurveApproxStep(p02, p12, p22, p3);
      var segCount = Math.ceil(1 / step);
      if (!this.useNativeLine) {
        return segCount * 2 + 2;
      } else {
        return segCount * 2;
      }
    },
    /**
     * Get face count of cubic curve
     * @param {Array.<number>} p0
     * @param {Array.<number>} p1
     * @param {Array.<number>} p2
     * @param {Array.<number>} p3
     * @return number
     */
    getCubicCurveTriangleCount: function(p02, p12, p22, p3) {
      var step = this._getCubicCurveApproxStep(p02, p12, p22, p3);
      var segCount = Math.ceil(1 / step);
      if (!this.useNativeLine) {
        return segCount * 2;
      } else {
        return 0;
      }
    },
    /**
     * Get vertex count of line
     * @return {number}
     */
    getLineVertexCount: function() {
      return this.getPolylineVertexCount(sampleLinePoints);
    },
    /**
     * Get face count of line
     * @return {number}
     */
    getLineTriangleCount: function() {
      return this.getPolylineTriangleCount(sampleLinePoints);
    },
    /**
     * Get how many vertices will polyline take.
     * @type {number|Array} points Can be a 1d/2d list of points, or a number of points amount.
     * @return {number}
     */
    getPolylineVertexCount: function(points) {
      var pointsLen;
      if (typeof points === "number") {
        pointsLen = points;
      } else {
        var is2DArray = typeof points[0] !== "number";
        pointsLen = is2DArray ? points.length : points.length / 2;
      }
      return !this.useNativeLine ? (pointsLen - 1) * 2 + 2 : (pointsLen - 1) * 2;
    },
    /**
     * Get how many triangles will polyline take.
     * @type {number|Array} points Can be a 1d/2d list of points, or a number of points amount.
     * @return {number}
     */
    getPolylineTriangleCount: function(points) {
      var pointsLen;
      if (typeof points === "number") {
        pointsLen = points;
      } else {
        var is2DArray = typeof points[0] !== "number";
        pointsLen = is2DArray ? points.length : points.length / 2;
      }
      return !this.useNativeLine ? (pointsLen - 1) * 2 : 0;
    },
    /**
     * Add a cubic curve
     * @param {Array.<number>} p0
     * @param {Array.<number>} p1
     * @param {Array.<number>} p2
     * @param {Array.<number>} p3
     * @param {Array.<number>} color
     * @param {number} [lineWidth=1]
     */
    addCubicCurve: function(p02, p12, p22, p3, color, lineWidth) {
      if (lineWidth == null) {
        lineWidth = 1;
      }
      var x0 = p02[0], y0 = p02[1];
      var x1 = p12[0], y1 = p12[1];
      var x2 = p22[0], y2 = p22[1];
      var x3 = p3[0], y3 = p3[1];
      var step = this._getCubicCurveApproxStep(p02, p12, p22, p3);
      var step2 = step * step;
      var step3 = step2 * step;
      var pre1 = 3 * step;
      var pre2 = 3 * step2;
      var pre4 = 6 * step2;
      var pre5 = 6 * step3;
      var tmp1x = x0 - x1 * 2 + x2;
      var tmp1y = y0 - y1 * 2 + y2;
      var tmp2x = (x1 - x2) * 3 - x0 + x3;
      var tmp2y = (y1 - y2) * 3 - y0 + y3;
      var fx = x0;
      var fy = y0;
      var dfx = (x1 - x0) * pre1 + tmp1x * pre2 + tmp2x * step3;
      var dfy = (y1 - y0) * pre1 + tmp1y * pre2 + tmp2y * step3;
      var ddfx = tmp1x * pre4 + tmp2x * pre5;
      var ddfy = tmp1y * pre4 + tmp2y * pre5;
      var dddfx = tmp2x * pre5;
      var dddfy = tmp2y * pre5;
      var t = 0;
      var k = 0;
      var segCount = Math.ceil(1 / step);
      var points = new Float32Array((segCount + 1) * 3);
      var points = [];
      var offset = 0;
      for (var k = 0; k < segCount + 1; k++) {
        points[offset++] = fx;
        points[offset++] = fy;
        fx += dfx;
        fy += dfy;
        dfx += ddfx;
        dfy += ddfy;
        ddfx += dddfx;
        ddfy += dddfy;
        t += step;
        if (t > 1) {
          fx = dfx > 0 ? Math.min(fx, x3) : Math.max(fx, x3);
          fy = dfy > 0 ? Math.min(fy, y3) : Math.max(fy, y3);
        }
      }
      this.addPolyline(points, color, lineWidth);
    },
    /**
     * Add a straight line
     * @param {Array.<number>} p0
     * @param {Array.<number>} p1
     * @param {Array.<number>} color
     * @param {number} [lineWidth=1]
     */
    addLine: function(p02, p12, color, lineWidth) {
      this.addPolyline([p02, p12], color, lineWidth);
    },
    /**
     * Add a straight line
     * @param {Array.<Array> | Array.<number>} points
     * @param {Array.<number> | Array.<Array>} color
     * @param {number} [lineWidth=1]
     * @param {number} [arrayOffset=0]
     * @param {number} [pointsCount] Default to be amount of points in the first argument
     */
    addPolyline: function() {
      var dirA = vec2$1.create();
      var dirB = vec2$1.create();
      var normal2 = vec2$1.create();
      var tangent2 = vec2$1.create();
      var point = [], nextPoint = [], prevPoint = [];
      return function(points, color, lineWidth, arrayOffset, pointsCount) {
        if (!points.length) {
          return;
        }
        var is2DArray = typeof points[0] !== "number";
        if (pointsCount == null) {
          pointsCount = is2DArray ? points.length : points.length / 2;
        }
        if (pointsCount < 2) {
          return;
        }
        if (arrayOffset == null) {
          arrayOffset = 0;
        }
        if (lineWidth == null) {
          lineWidth = 1;
        }
        this._itemVertexOffsets.push(this._vertexOffset);
        var notSharingColor = is2DArray ? typeof color[0] !== "number" : color.length / 4 === pointsCount;
        var positionAttr = this.attributes.position;
        var colorAttr = this.attributes.color;
        var offsetAttr = this.attributes.offset;
        var normalAttr = this.attributes.normal;
        var indices = this.indices;
        var vertexOffset = this._vertexOffset;
        var pointColor;
        for (var k = 0; k < pointsCount; k++) {
          if (is2DArray) {
            point = points[k + arrayOffset];
            if (notSharingColor) {
              pointColor = color[k + arrayOffset];
            } else {
              pointColor = color;
            }
          } else {
            var k2 = k * 2 + arrayOffset;
            point = point || [];
            point[0] = points[k2];
            point[1] = points[k2 + 1];
            if (notSharingColor) {
              var k4 = k * 4 + arrayOffset;
              pointColor = pointColor || [];
              pointColor[0] = color[k4];
              pointColor[1] = color[k4 + 1];
              pointColor[2] = color[k4 + 2];
              pointColor[3] = color[k4 + 3];
            } else {
              pointColor = color;
            }
          }
          if (!this.useNativeLine) {
            var offset;
            if (k < pointsCount - 1) {
              if (is2DArray) {
                vec2$1.copy(nextPoint, points[k + 1]);
              } else {
                var k2 = (k + 1) * 2 + arrayOffset;
                nextPoint = nextPoint || [];
                nextPoint[0] = points[k2];
                nextPoint[1] = points[k2 + 1];
              }
              if (k > 0) {
                vec2$1.sub(dirA, point, prevPoint);
                vec2$1.sub(dirB, nextPoint, point);
                vec2$1.normalize(dirA, dirA);
                vec2$1.normalize(dirB, dirB);
                vec2$1.add(tangent2, dirA, dirB);
                vec2$1.normalize(tangent2, tangent2);
                var miter = lineWidth / 2 * Math.min(1 / vec2$1.dot(dirA, tangent2), 2);
                normal2[0] = -tangent2[1];
                normal2[1] = tangent2[0];
                offset = miter;
              } else {
                vec2$1.sub(dirA, nextPoint, point);
                vec2$1.normalize(dirA, dirA);
                normal2[0] = -dirA[1];
                normal2[1] = dirA[0];
                offset = lineWidth / 2;
              }
            } else {
              vec2$1.sub(dirA, point, prevPoint);
              vec2$1.normalize(dirA, dirA);
              normal2[0] = -dirA[1];
              normal2[1] = dirA[0];
              offset = lineWidth / 2;
            }
            normalAttr.set(vertexOffset, normal2);
            normalAttr.set(vertexOffset + 1, normal2);
            offsetAttr.set(vertexOffset, offset);
            offsetAttr.set(vertexOffset + 1, -offset);
            vec2$1.copy(prevPoint, point);
            positionAttr.set(vertexOffset, point);
            positionAttr.set(vertexOffset + 1, point);
            colorAttr.set(vertexOffset, pointColor);
            colorAttr.set(vertexOffset + 1, pointColor);
            vertexOffset += 2;
          } else {
            if (k > 1) {
              positionAttr.copy(vertexOffset, vertexOffset - 1);
              colorAttr.copy(vertexOffset, vertexOffset - 1);
              vertexOffset++;
            }
          }
          if (!this.useNativeLine) {
            if (k > 0) {
              var idx3 = this._faceOffset * 3;
              var indices = this.indices;
              indices[idx3] = vertexOffset - 4;
              indices[idx3 + 1] = vertexOffset - 3;
              indices[idx3 + 2] = vertexOffset - 2;
              indices[idx3 + 3] = vertexOffset - 3;
              indices[idx3 + 4] = vertexOffset - 1;
              indices[idx3 + 5] = vertexOffset - 2;
              this._faceOffset += 2;
            }
          } else {
            colorAttr.set(vertexOffset, pointColor);
            positionAttr.set(vertexOffset, point);
            vertexOffset++;
          }
        }
        this._vertexOffset = vertexOffset;
      };
    }(),
    /**
     * Set color of single line.
     */
    setItemColor: function(idx, color) {
      var startOffset = this._itemVertexOffsets[idx];
      var endOffset = idx < this._itemVertexOffsets.length - 1 ? this._itemVertexOffsets[idx + 1] : this._vertexOffset;
      for (var i = startOffset; i < endOffset; i++) {
        this.attributes.color.set(i, color);
      }
      this.dirty("color");
    }
  }
);
defaults(LinesGeometry$1.prototype, dynamicConvertMixin);
const forceAtlas2Code = "@export ecgl.forceAtlas2.updateNodeRepulsion\n\n#define NODE_COUNT 0\n\nuniform sampler2D positionTex;\n\nuniform vec2 textureSize;\nuniform float gravity;\nuniform float scaling;\nuniform vec2 gravityCenter;\n\nuniform bool strongGravityMode;\nuniform bool preventOverlap;\n\nvarying vec2 v_Texcoord;\n\nvoid main() {\n\n vec4 n0 = texture2D(positionTex, v_Texcoord);\n\n vec2 force = vec2(0.0);\n for (int i = 0; i < NODE_COUNT; i++) {\n vec2 uv = vec2(\n mod(float(i), textureSize.x) / (textureSize.x - 1.0),\n floor(float(i) / textureSize.x) / (textureSize.y - 1.0)\n );\n vec4 n1 = texture2D(positionTex, uv);\n\n vec2 dir = n0.xy - n1.xy;\n float d2 = dot(dir, dir);\n\n if (d2 > 0.0) {\n float factor = 0.0;\n if (preventOverlap) {\n float d = sqrt(d2);\n d = d - n0.w - n1.w;\n if (d > 0.0) {\n factor = scaling * n0.z * n1.z / (d * d);\n }\n else if (d < 0.0) {\n factor = scaling * 100.0 * n0.z * n1.z;\n }\n }\n else {\n factor = scaling * n0.z * n1.z / d2;\n }\n force += dir * factor;\n }\n }\n\n vec2 dir = gravityCenter - n0.xy;\n float d = 1.0;\n if (!strongGravityMode) {\n d = length(dir);\n }\n\n force += dir * n0.z * gravity / (d + 1.0);\n\n gl_FragColor = vec4(force, 0.0, 1.0);\n}\n@end\n\n@export ecgl.forceAtlas2.updateEdgeAttraction.vertex\n\nattribute vec2 node1;\nattribute vec2 node2;\nattribute float weight;\n\nuniform sampler2D positionTex;\nuniform float edgeWeightInfluence;\nuniform bool preventOverlap;\nuniform bool linLogMode;\n\nuniform vec2 windowSize: WINDOW_SIZE;\n\nvarying vec2 v_Force;\n\nvoid main() {\n\n vec4 n0 = texture2D(positionTex, node1);\n vec4 n1 = texture2D(positionTex, node2);\n\n vec2 dir = n1.xy - n0.xy;\n float d = length(dir);\n float w;\n if (edgeWeightInfluence == 0.0) {\n w = 1.0;\n }\n else if (edgeWeightInfluence == 1.0) {\n w = weight;\n }\n else {\n w = pow(weight, edgeWeightInfluence);\n }\n vec2 offset = vec2(1.0 / windowSize.x, 1.0 / windowSize.y);\n vec2 scale = vec2((windowSize.x - 1.0) / windowSize.x, (windowSize.y - 1.0) / windowSize.y);\n vec2 pos = node1 * scale * 2.0 - 1.0;\n gl_Position = vec4(pos + offset, 0.0, 1.0);\n gl_PointSize = 1.0;\n\n float factor;\n if (preventOverlap) {\n d = d - n1.w - n0.w;\n }\n if (d <= 0.0) {\n v_Force = vec2(0.0);\n return;\n }\n\n if (linLogMode) {\n factor = w * log(d) / d;\n }\n else {\n factor = w;\n }\n v_Force = dir * factor;\n}\n@end\n\n@export ecgl.forceAtlas2.updateEdgeAttraction.fragment\n\nvarying vec2 v_Force;\n\nvoid main() {\n gl_FragColor = vec4(v_Force, 0.0, 0.0);\n}\n@end\n\n@export ecgl.forceAtlas2.calcWeightedSum.vertex\n\nattribute vec2 node;\n\nvarying vec2 v_NodeUv;\n\nvoid main() {\n\n v_NodeUv = node;\n gl_Position = vec4(0.0, 0.0, 0.0, 1.0);\n gl_PointSize = 1.0;\n}\n@end\n\n@export ecgl.forceAtlas2.calcWeightedSum.fragment\n\nvarying vec2 v_NodeUv;\n\nuniform sampler2D positionTex;\nuniform sampler2D forceTex;\nuniform sampler2D forcePrevTex;\n\nvoid main() {\n vec2 force = texture2D(forceTex, v_NodeUv).rg;\n vec2 forcePrev = texture2D(forcePrevTex, v_NodeUv).rg;\n\n float mass = texture2D(positionTex, v_NodeUv).z;\n float swing = length(force - forcePrev) * mass;\n float traction = length(force + forcePrev) * 0.5 * mass;\n\n gl_FragColor = vec4(swing, traction, 0.0, 0.0);\n}\n@end\n\n@export ecgl.forceAtlas2.calcGlobalSpeed\n\nuniform sampler2D globalSpeedPrevTex;\nuniform sampler2D weightedSumTex;\nuniform float jitterTolerence;\n\nvoid main() {\n vec2 weightedSum = texture2D(weightedSumTex, vec2(0.5)).xy;\n float prevGlobalSpeed = texture2D(globalSpeedPrevTex, vec2(0.5)).x;\n float globalSpeed = jitterTolerence * jitterTolerence\n * weightedSum.y / weightedSum.x;\n if (prevGlobalSpeed > 0.0) {\n globalSpeed = min(globalSpeed / prevGlobalSpeed, 1.5) * prevGlobalSpeed;\n }\n gl_FragColor = vec4(globalSpeed, 0.0, 0.0, 1.0);\n}\n@end\n\n@export ecgl.forceAtlas2.updatePosition\n\nuniform sampler2D forceTex;\nuniform sampler2D forcePrevTex;\nuniform sampler2D positionTex;\nuniform sampler2D globalSpeedTex;\n\nvarying vec2 v_Texcoord;\n\nvoid main() {\n vec2 force = texture2D(forceTex, v
graphicGL.Shader.import(forceAtlas2Code);
var defaultConfigs$1 = {
  repulsionByDegree: true,
  linLogMode: false,
  strongGravityMode: false,
  gravity: 1,
  scaling: 1,
  edgeWeightInfluence: 1,
  jitterTolerence: 0.1,
  preventOverlap: false,
  dissuadeHubs: false,
  gravityCenter: null
};
function ForceAtlas2GPU(options) {
  var textureOpt = {
    type: graphicGL.Texture.FLOAT,
    minFilter: graphicGL.Texture.NEAREST,
    magFilter: graphicGL.Texture.NEAREST
  };
  this._positionSourceTex = new graphicGL.Texture2D(textureOpt);
  this._positionSourceTex.flipY = false;
  this._positionTex = new graphicGL.Texture2D(textureOpt);
  this._positionPrevTex = new graphicGL.Texture2D(textureOpt);
  this._forceTex = new graphicGL.Texture2D(textureOpt);
  this._forcePrevTex = new graphicGL.Texture2D(textureOpt);
  this._weightedSumTex = new graphicGL.Texture2D(textureOpt);
  this._weightedSumTex.width = this._weightedSumTex.height = 1;
  this._globalSpeedTex = new graphicGL.Texture2D(textureOpt);
  this._globalSpeedPrevTex = new graphicGL.Texture2D(textureOpt);
  this._globalSpeedTex.width = this._globalSpeedTex.height = 1;
  this._globalSpeedPrevTex.width = this._globalSpeedPrevTex.height = 1;
  this._nodeRepulsionPass = new Pass({
    fragment: graphicGL.Shader.source("ecgl.forceAtlas2.updateNodeRepulsion")
  });
  this._positionPass = new Pass({
    fragment: graphicGL.Shader.source("ecgl.forceAtlas2.updatePosition")
  });
  this._globalSpeedPass = new Pass({
    fragment: graphicGL.Shader.source("ecgl.forceAtlas2.calcGlobalSpeed")
  });
  this._copyPass = new Pass({
    fragment: graphicGL.Shader.source("clay.compositor.output")
  });
  var additiveBlend = function(gl) {
    gl.blendEquation(gl.FUNC_ADD);
    gl.blendFunc(gl.ONE, gl.ONE);
  };
  this._edgeForceMesh = new graphicGL.Mesh({
    geometry: new graphicGL.Geometry({
      attributes: {
        node1: new graphicGL.Geometry.Attribute("node1", "float", 2),
        node2: new graphicGL.Geometry.Attribute("node2", "float", 2),
        weight: new graphicGL.Geometry.Attribute("weight", "float", 1)
      },
      dynamic: true,
      mainAttribute: "node1"
    }),
    material: new graphicGL.Material({
      transparent: true,
      shader: graphicGL.createShader("ecgl.forceAtlas2.updateEdgeAttraction"),
      blend: additiveBlend,
      depthMask: false,
      depthText: false
    }),
    mode: graphicGL.Mesh.POINTS
  });
  this._weightedSumMesh = new graphicGL.Mesh({
    geometry: new graphicGL.Geometry({
      attributes: {
        node: new graphicGL.Geometry.Attribute("node", "float", 2)
      },
      dynamic: true,
      mainAttribute: "node"
    }),
    material: new graphicGL.Material({
      transparent: true,
      shader: graphicGL.createShader("ecgl.forceAtlas2.calcWeightedSum"),
      blend: additiveBlend,
      depthMask: false,
      depthText: false
    }),
    mode: graphicGL.Mesh.POINTS
  });
  this._framebuffer = new FrameBuffer({
    depthBuffer: false
  });
  this._dummyCamera = new graphicGL.OrthographicCamera({
    left: -1,
    right: 1,
    top: 1,
    bottom: -1,
    near: 0,
    far: 100
  });
  this._globalSpeed = 0;
}
ForceAtlas2GPU.prototype.updateOption = function(options) {
  for (var name in defaultConfigs$1) {
    this[name] = defaultConfigs$1[name];
  }
  var nNodes = this._nodes.length;
  if (nNodes > 5e4) {
    this.jitterTolerence = 10;
  } else if (nNodes > 5e3) {
    this.jitterTolerence = 1;
  } else {
    this.jitterTolerence = 0.1;
  }
  if (nNodes > 100) {
    this.scaling = 2;
  } else {
    this.scaling = 10;
  }
  if (options) {
    for (var name in defaultConfigs$1) {
      if (options[name] != null) {
        this[name] = options[name];
      }
    }
  }
  if (this.repulsionByDegree) {
    var positionBuffer = this._positionSourceTex.pixels;
    for (var i = 0; i < this._nodes.length; i++) {
      positionBuffer[i * 4 + 2] = (this._nodes[i].degree || 0) + 1;
    }
  }
};
ForceAtlas2GPU.prototype._updateGravityCenter = function(options) {
  var nodes = this._nodes;
  var edges = this._edges;
  if (!this.gravityCenter) {
    var min = [Infinity, Infinity];
    var max = [-Infinity, -Infinity];
    for (var i = 0; i < nodes.length; i++) {
      min[0] = Math.min(nodes[i].x, min[0]);
      min[1] = Math.min(nodes[i].y, min[1]);
      max[0] = Math.max(nodes[i].x, max[0]);
      max[1] = Math.max(nodes[i].y, max[1]);
    }
    this._gravityCenter = [(min[0] + max[0]) * 0.5, (min[1] + max[1]) * 0.5];
  } else {
    this._gravityCenter = this.gravityCenter;
  }
  for (var i = 0; i < edges.length; i++) {
    var node1 = edges[i].node1;
    var node2 = edges[i].node2;
    nodes[node1].degree = (nodes[node1].degree || 0) + 1;
    nodes[node2].degree = (nodes[node2].degree || 0) + 1;
  }
};
ForceAtlas2GPU.prototype.initData = function(nodes, edges) {
  this._nodes = nodes;
  this._edges = edges;
  this._updateGravityCenter();
  var textureWidth = Math.ceil(Math.sqrt(nodes.length));
  var textureHeight = textureWidth;
  var positionBuffer = new Float32Array(textureWidth * textureHeight * 4);
  this._resize(textureWidth, textureHeight);
  var offset = 0;
  for (var i = 0; i < nodes.length; i++) {
    var node = nodes[i];
    positionBuffer[offset++] = node.x || 0;
    positionBuffer[offset++] = node.y || 0;
    positionBuffer[offset++] = node.mass || 1;
    positionBuffer[offset++] = node.size || 1;
  }
  this._positionSourceTex.pixels = positionBuffer;
  var edgeGeometry = this._edgeForceMesh.geometry;
  var edgeLen = edges.length;
  edgeGeometry.attributes.node1.init(edgeLen * 2);
  edgeGeometry.attributes.node2.init(edgeLen * 2);
  edgeGeometry.attributes.weight.init(edgeLen * 2);
  var uv = [];
  for (var i = 0; i < edges.length; i++) {
    var attributes = edgeGeometry.attributes;
    var weight = edges[i].weight;
    if (weight == null) {
      weight = 1;
    }
    attributes.node1.set(i, this.getNodeUV(edges[i].node1, uv));
    attributes.node2.set(i, this.getNodeUV(edges[i].node2, uv));
    attributes.weight.set(i, weight);
    attributes.node1.set(i + edgeLen, this.getNodeUV(edges[i].node2, uv));
    attributes.node2.set(i + edgeLen, this.getNodeUV(edges[i].node1, uv));
    attributes.weight.set(i + edgeLen, weight);
  }
  var weigtedSumGeo = this._weightedSumMesh.geometry;
  weigtedSumGeo.attributes.node.init(nodes.length);
  for (var i = 0; i < nodes.length; i++) {
    weigtedSumGeo.attributes.node.set(i, this.getNodeUV(i, uv));
  }
  edgeGeometry.dirty();
  weigtedSumGeo.dirty();
  this._nodeRepulsionPass.material.define("fragment", "NODE_COUNT", nodes.length);
  this._nodeRepulsionPass.material.setUniform("textureSize", [textureWidth, textureHeight]);
  this._inited = false;
  this._frame = 0;
};
ForceAtlas2GPU.prototype.getNodes = function() {
  return this._nodes;
};
ForceAtlas2GPU.prototype.getEdges = function() {
  return this._edges;
};
ForceAtlas2GPU.prototype.step = function(renderer) {
  if (!this._inited) {
    this._initFromSource(renderer);
    this._inited = true;
  }
  this._frame++;
  this._framebuffer.attach(this._forceTex);
  this._framebuffer.bind(renderer);
  var nodeRepulsionPass = this._nodeRepulsionPass;
  nodeRepulsionPass.setUniform("strongGravityMode", this.strongGravityMode);
  nodeRepulsionPass.setUniform("gravity", this.gravity);
  nodeRepulsionPass.setUniform("gravityCenter", this._gravityCenter);
  nodeRepulsionPass.setUniform("scaling", this.scaling);
  nodeRepulsionPass.setUniform("preventOverlap", this.preventOverlap);
  nodeRepulsionPass.setUniform("positionTex", this._positionPrevTex);
  nodeRepulsionPass.render(renderer);
  var edgeForceMesh = this._edgeForceMesh;
  edgeForceMesh.material.set("linLogMode", this.linLogMode);
  edgeForceMesh.material.set("edgeWeightInfluence", this.edgeWeightInfluence);
  edgeForceMesh.material.set("preventOverlap", this.preventOverlap);
  edgeForceMesh.material.set("positionTex", this._positionPrevTex);
  renderer.gl.enable(renderer.gl.BLEND);
  renderer.renderPass([edgeForceMesh], this._dummyCamera);
  this._framebuffer.attach(this._weightedSumTex);
  renderer.gl.clearColor(0, 0, 0, 0);
  renderer.gl.clear(renderer.gl.COLOR_BUFFER_BIT);
  renderer.gl.enable(renderer.gl.BLEND);
  var weightedSumMesh = this._weightedSumMesh;
  weightedSumMesh.material.set("positionTex", this._positionPrevTex);
  weightedSumMesh.material.set("forceTex", this._forceTex);
  weightedSumMesh.material.set("forcePrevTex", this._forcePrevTex);
  renderer.renderPass([weightedSumMesh], this._dummyCamera);
  this._framebuffer.attach(this._globalSpeedTex);
  var globalSpeedPass = this._globalSpeedPass;
  globalSpeedPass.setUniform("globalSpeedPrevTex", this._globalSpeedPrevTex);
  globalSpeedPass.setUniform("weightedSumTex", this._weightedSumTex);
  globalSpeedPass.setUniform("jitterTolerence", this.jitterTolerence);
  renderer.gl.disable(renderer.gl.BLEND);
  globalSpeedPass.render(renderer);
  var positionPass = this._positionPass;
  this._framebuffer.attach(this._positionTex);
  positionPass.setUniform("globalSpeedTex", this._globalSpeedTex);
  positionPass.setUniform("positionTex", this._positionPrevTex);
  positionPass.setUniform("forceTex", this._forceTex);
  positionPass.setUniform("forcePrevTex", this._forcePrevTex);
  positionPass.render(renderer);
  this._framebuffer.unbind(renderer);
  this._swapTexture();
};
ForceAtlas2GPU.prototype.update = function(renderer, steps, cb) {
  if (steps == null) {
    steps = 1;
  }
  steps = Math.max(steps, 1);
  for (var i = 0; i < steps; i++) {
    this.step(renderer);
  }
  cb && cb();
};
ForceAtlas2GPU.prototype.getNodePositionTexture = function() {
  return this._inited ? this._positionPrevTex : this._positionSourceTex;
};
ForceAtlas2GPU.prototype.getNodeUV = function(nodeIndex, uv) {
  uv = uv || [];
  var textureWidth = this._positionTex.width;
  var textureHeight = this._positionTex.height;
  uv[0] = nodeIndex % textureWidth / (textureWidth - 1);
  uv[1] = Math.floor(nodeIndex / textureWidth) / (textureHeight - 1) || 0;
  return uv;
};
ForceAtlas2GPU.prototype.getNodePosition = function(renderer, out) {
  var positionArr = this._positionArr;
  var width = this._positionTex.width;
  var height = this._positionTex.height;
  var size = width * height;
  if (!positionArr || positionArr.length !== size * 4) {
    positionArr = this._positionArr = new Float32Array(size * 4);
  }
  this._framebuffer.bind(renderer);
  this._framebuffer.attach(this._positionPrevTex);
  renderer.gl.readPixels(0, 0, width, height, renderer.gl.RGBA, renderer.gl.FLOAT, positionArr);
  this._framebuffer.unbind(renderer);
  if (!out) {
    out = new Float32Array(this._nodes.length * 2);
  }
  for (var i = 0; i < this._nodes.length; i++) {
    out[i * 2] = positionArr[i * 4];
    out[i * 2 + 1] = positionArr[i * 4 + 1];
  }
  return out;
};
ForceAtlas2GPU.prototype.getTextureData = function(renderer, textureName) {
  var tex = this["_" + textureName + "Tex"];
  var width = tex.width;
  var height = tex.height;
  this._framebuffer.bind(renderer);
  this._framebuffer.attach(tex);
  var arr = new Float32Array(width * height * 4);
  renderer.gl.readPixels(0, 0, width, height, renderer.gl.RGBA, renderer.gl.FLOAT, arr);
  this._framebuffer.unbind(renderer);
  return arr;
};
ForceAtlas2GPU.prototype.getTextureSize = function() {
  return {
    width: this._positionTex.width,
    height: this._positionTex.height
  };
};
ForceAtlas2GPU.prototype.isFinished = function(maxSteps) {
  return this._frame > maxSteps;
};
ForceAtlas2GPU.prototype._swapTexture = function() {
  var tmp = this._positionPrevTex;
  this._positionPrevTex = this._positionTex;
  this._positionTex = tmp;
  var tmp = this._forcePrevTex;
  this._forcePrevTex = this._forceTex;
  this._forceTex = tmp;
  var tmp = this._globalSpeedPrevTex;
  this._globalSpeedPrevTex = this._globalSpeedTex;
  this._globalSpeedTex = tmp;
};
ForceAtlas2GPU.prototype._initFromSource = function(renderer) {
  this._framebuffer.attach(this._positionPrevTex);
  this._framebuffer.bind(renderer);
  this._copyPass.setUniform("texture", this._positionSourceTex);
  this._copyPass.render(renderer);
  renderer.gl.clearColor(0, 0, 0, 0);
  this._framebuffer.attach(this._forcePrevTex);
  renderer.gl.clear(renderer.gl.COLOR_BUFFER_BIT);
  this._framebuffer.attach(this._globalSpeedPrevTex);
  renderer.gl.clear(renderer.gl.COLOR_BUFFER_BIT);
  this._framebuffer.unbind(renderer);
};
ForceAtlas2GPU.prototype._resize = function(width, height) {
  ["_positionSourceTex", "_positionTex", "_positionPrevTex", "_forceTex", "_forcePrevTex"].forEach(function(texName) {
    this[texName].width = width;
    this[texName].height = height;
    this[texName].dirty();
  }, this);
};
ForceAtlas2GPU.prototype.dispose = function(renderer) {
  this._framebuffer.dispose(renderer);
  this._copyPass.dispose(renderer);
  this._nodeRepulsionPass.dispose(renderer);
  this._positionPass.dispose(renderer);
  this._globalSpeedPass.dispose(renderer);
  this._edgeForceMesh.geometry.dispose(renderer);
  this._weightedSumMesh.geometry.dispose(renderer);
  this._positionSourceTex.dispose(renderer);
  this._positionTex.dispose(renderer);
  this._positionPrevTex.dispose(renderer);
  this._forceTex.dispose(renderer);
  this._forcePrevTex.dispose(renderer);
  this._weightedSumTex.dispose(renderer);
  this._globalSpeedTex.dispose(renderer);
  this._globalSpeedPrevTex.dispose(renderer);
};
function forceAtlas2Worker() {
  var vec22 = {
    create: function() {
      return new Float32Array(2);
    },
    dist: function(a, b) {
      var x = b[0] - a[0];
      var y = b[1] - a[1];
      return Math.sqrt(x * x + y * y);
    },
    len: function(a) {
      var x = a[0];
      var y = a[1];
      return Math.sqrt(x * x + y * y);
    },
    scaleAndAdd: function(out, a, b, scale) {
      out[0] = a[0] + b[0] * scale;
      out[1] = a[1] + b[1] * scale;
      return out;
    },
    scale: function(out, a, b) {
      out[0] = a[0] * b;
      out[1] = a[1] * b;
      return out;
    },
    add: function(out, a, b) {
      out[0] = a[0] + b[0];
      out[1] = a[1] + b[1];
      return out;
    },
    sub: function(out, a, b) {
      out[0] = a[0] - b[0];
      out[1] = a[1] - b[1];
      return out;
    },
    normalize: function(out, a) {
      var x = a[0];
      var y = a[1];
      var len = x * x + y * y;
      if (len > 0) {
        len = 1 / Math.sqrt(len);
        out[0] = a[0] * len;
        out[1] = a[1] * len;
      }
      return out;
    },
    negate: function(out, a) {
      out[0] = -a[0];
      out[1] = -a[1];
      return out;
    },
    copy: function(out, a) {
      out[0] = a[0];
      out[1] = a[1];
      return out;
    },
    set: function(out, x, y) {
      out[0] = x;
      out[1] = y;
      return out;
    }
  };
  function Region() {
    this.subRegions = [];
    this.nSubRegions = 0;
    this.node = null;
    this.mass = 0;
    this.centerOfMass = null;
    this.bbox = new Float32Array(4);
    this.size = 0;
  }
  var regionProto = Region.prototype;
  regionProto.beforeUpdate = function() {
    for (var i = 0; i < this.nSubRegions; i++) {
      this.subRegions[i].beforeUpdate();
    }
    this.mass = 0;
    if (this.centerOfMass) {
      this.centerOfMass[0] = 0;
      this.centerOfMass[1] = 0;
    }
    this.nSubRegions = 0;
    this.node = null;
  };
  regionProto.afterUpdate = function() {
    this.subRegions.length = this.nSubRegions;
    for (var i = 0; i < this.nSubRegions; i++) {
      this.subRegions[i].afterUpdate();
    }
  };
  regionProto.addNode = function(node) {
    if (this.nSubRegions === 0) {
      if (this.node == null) {
        this.node = node;
        return;
      } else {
        this._addNodeToSubRegion(this.node);
        this.node = null;
      }
    }
    this._addNodeToSubRegion(node);
    this._updateCenterOfMass(node);
  };
  regionProto.findSubRegion = function(x, y) {
    for (var i = 0; i < this.nSubRegions; i++) {
      var region = this.subRegions[i];
      if (region.contain(x, y)) {
        return region;
      }
    }
  };
  regionProto.contain = function(x, y) {
    return this.bbox[0] <= x && this.bbox[2] >= x && this.bbox[1] <= y && this.bbox[3] >= y;
  };
  regionProto.setBBox = function(minX, minY, maxX, maxY) {
    this.bbox[0] = minX;
    this.bbox[1] = minY;
    this.bbox[2] = maxX;
    this.bbox[3] = maxY;
    this.size = (maxX - minX + maxY - minY) / 2;
  };
  regionProto._newSubRegion = function() {
    var subRegion = this.subRegions[this.nSubRegions];
    if (!subRegion) {
      subRegion = new Region();
      this.subRegions[this.nSubRegions] = subRegion;
    }
    this.nSubRegions++;
    return subRegion;
  };
  regionProto._addNodeToSubRegion = function(node) {
    var subRegion = this.findSubRegion(node.position[0], node.position[1]);
    var bbox = this.bbox;
    if (!subRegion) {
      var cx = (bbox[0] + bbox[2]) / 2;
      var cy = (bbox[1] + bbox[3]) / 2;
      var w = (bbox[2] - bbox[0]) / 2;
      var h = (bbox[3] - bbox[1]) / 2;
      var xi = node.position[0] >= cx ? 1 : 0;
      var yi = node.position[1] >= cy ? 1 : 0;
      var subRegion = this._newSubRegion();
      subRegion.setBBox(
        // Min
        xi * w + bbox[0],
        yi * h + bbox[1],
        // Max
        (xi + 1) * w + bbox[0],
        (yi + 1) * h + bbox[1]
      );
    }
    subRegion.addNode(node);
  };
  regionProto._updateCenterOfMass = function(node) {
    if (this.centerOfMass == null) {
      this.centerOfMass = new Float32Array(2);
    }
    var x = this.centerOfMass[0] * this.mass;
    var y = this.centerOfMass[1] * this.mass;
    x += node.position[0] * node.mass;
    y += node.position[1] * node.mass;
    this.mass += node.mass;
    this.centerOfMass[0] = x / this.mass;
    this.centerOfMass[1] = y / this.mass;
  };
  function GraphNode() {
    this.position = new Float32Array(2);
    this.force = vec22.create();
    this.forcePrev = vec22.create();
    this.mass = 1;
    this.inDegree = 0;
    this.outDegree = 0;
  }
  function GraphEdge(source, target) {
    this.source = source;
    this.target = target;
    this.weight = 1;
  }
  function ForceAtlas22() {
    this.autoSettings = true;
    this.barnesHutOptimize = true;
    this.barnesHutTheta = 1.5;
    this.repulsionByDegree = true;
    this.linLogMode = false;
    this.strongGravityMode = false;
    this.gravity = 1;
    this.scaling = 1;
    this.edgeWeightInfluence = 1;
    this.jitterTolerence = 0.1;
    this.preventOverlap = false;
    this.dissuadeHubs = false;
    this.rootRegion = new Region();
    this.rootRegion.centerOfMass = vec22.create();
    this.nodes = [];
    this.edges = [];
    this.bbox = new Float32Array(4);
    this.gravityCenter = null;
    this._massArr = null;
    this._swingingArr = null;
    this._sizeArr = null;
    this._globalSpeed = 0;
  }
  var forceAtlas2Proto = ForceAtlas22.prototype;
  forceAtlas2Proto.initNodes = function(positionArr, massArr, sizeArr) {
    var nNodes = massArr.length;
    this.nodes.length = 0;
    var haveSize = typeof sizeArr != "undefined";
    for (var i = 0; i < nNodes; i++) {
      var node = new GraphNode();
      node.position[0] = positionArr[i * 2];
      node.position[1] = positionArr[i * 2 + 1];
      node.mass = massArr[i];
      if (haveSize) {
        node.size = sizeArr[i];
      }
      this.nodes.push(node);
    }
    this._massArr = massArr;
    this._swingingArr = new Float32Array(nNodes);
    if (haveSize) {
      this._sizeArr = sizeArr;
    }
  };
  forceAtlas2Proto.initEdges = function(edgeArr, edgeWeightArr) {
    var nEdges = edgeArr.length / 2;
    this.edges.length = 0;
    for (var i = 0; i < nEdges; i++) {
      var sIdx = edgeArr[i * 2];
      var tIdx = edgeArr[i * 2 + 1];
      var sNode = this.nodes[sIdx];
      var tNode = this.nodes[tIdx];
      if (!sNode || !tNode) {
        console.error("Node not exists, try initNodes before initEdges");
        return;
      }
      sNode.outDegree++;
      tNode.inDegree++;
      var edge = new GraphEdge(sNode, tNode);
      if (edgeWeightArr) {
        edge.weight = edgeWeightArr[i];
      }
      this.edges.push(edge);
    }
  };
  forceAtlas2Proto.updateSettings = function() {
    if (this.repulsionByDegree) {
      for (var i = 0; i < this.nodes.length; i++) {
        var node = this.nodes[i];
        node.mass = node.inDegree + node.outDegree + 1;
      }
    } else {
      for (var i = 0; i < this.nodes.length; i++) {
        var node = this.nodes[i];
        node.mass = this._massArr[i];
      }
    }
  };
  forceAtlas2Proto.update = function() {
    var nNodes = this.nodes.length;
    this.updateSettings();
    this.updateBBox();
    if (this.barnesHutOptimize) {
      this.rootRegion.setBBox(this.bbox[0], this.bbox[1], this.bbox[2], this.bbox[3]);
      this.rootRegion.beforeUpdate();
      for (var i = 0; i < nNodes; i++) {
        this.rootRegion.addNode(this.nodes[i]);
      }
      this.rootRegion.afterUpdate();
    }
    for (var i = 0; i < nNodes; i++) {
      var node = this.nodes[i];
      vec22.copy(node.forcePrev, node.force);
      vec22.set(node.force, 0, 0);
    }
    for (var i = 0; i < nNodes; i++) {
      var na = this.nodes[i];
      if (this.barnesHutOptimize) {
        this.applyRegionToNodeRepulsion(this.rootRegion, na);
      } else {
        for (var j = i + 1; j < nNodes; j++) {
          var nb = this.nodes[j];
          this.applyNodeToNodeRepulsion(na, nb, false);
        }
      }
      if (this.gravity > 0) {
        if (this.strongGravityMode) {
          this.applyNodeStrongGravity(na);
        } else {
          this.applyNodeGravity(na);
        }
      }
    }
    for (var i = 0; i < this.edges.length; i++) {
      this.applyEdgeAttraction(this.edges[i]);
    }
    var swingWeightedSum = 0;
    var tractionWeightedSum = 0;
    var tmp = vec22.create();
    for (var i = 0; i < nNodes; i++) {
      var node = this.nodes[i];
      var swing = vec22.dist(node.force, node.forcePrev);
      swingWeightedSum += swing * node.mass;
      vec22.add(tmp, node.force, node.forcePrev);
      var traction = vec22.len(tmp) * 0.5;
      tractionWeightedSum += traction * node.mass;
      this._swingingArr[i] = swing;
    }
    var globalSpeed = this.jitterTolerence * this.jitterTolerence * tractionWeightedSum / swingWeightedSum;
    if (this._globalSpeed > 0) {
      globalSpeed = Math.min(globalSpeed / this._globalSpeed, 1.5) * this._globalSpeed;
    }
    this._globalSpeed = globalSpeed;
    for (var i = 0; i < nNodes; i++) {
      var node = this.nodes[i];
      var swing = this._swingingArr[i];
      var speed = 0.1 * globalSpeed / (1 + globalSpeed * Math.sqrt(swing));
      var df = vec22.len(node.force);
      if (df > 0) {
        speed = Math.min(df * speed, 10) / df;
        vec22.scaleAndAdd(node.position, node.position, node.force, speed);
      }
    }
  };
  forceAtlas2Proto.applyRegionToNodeRepulsion = function() {
    var v = vec22.create();
    return function applyRegionToNodeRepulsion(region, node) {
      if (region.node) {
        this.applyNodeToNodeRepulsion(region.node, node, true);
      } else {
        vec22.sub(v, node.position, region.centerOfMass);
        var d2 = v[0] * v[0] + v[1] * v[1];
        if (d2 > this.barnesHutTheta * region.size * region.size) {
          var factor = this.scaling * node.mass * region.mass / d2;
          vec22.scaleAndAdd(node.force, node.force, v, factor);
        } else {
          for (var i = 0; i < region.nSubRegions; i++) {
            this.applyRegionToNodeRepulsion(region.subRegions[i], node);
          }
        }
      }
    };
  }();
  forceAtlas2Proto.applyNodeToNodeRepulsion = function() {
    var v = vec22.create();
    return function applyNodeToNodeRepulsion(na, nb, oneWay) {
      if (na == nb) {
        return;
      }
      vec22.sub(v, na.position, nb.position);
      var d2 = v[0] * v[0] + v[1] * v[1];
      if (d2 === 0) {
        return;
      }
      var factor;
      if (this.preventOverlap) {
        var d = Math.sqrt(d2);
        d = d - na.size - nb.size;
        if (d > 0) {
          factor = this.scaling * na.mass * nb.mass / (d * d);
        } else if (d < 0) {
          factor = this.scaling * 100 * na.mass * nb.mass;
        } else {
          return;
        }
      } else {
        factor = this.scaling * na.mass * nb.mass / d2;
      }
      vec22.scaleAndAdd(na.force, na.force, v, factor);
      vec22.scaleAndAdd(nb.force, nb.force, v, -factor);
    };
  }();
  forceAtlas2Proto.applyEdgeAttraction = function() {
    var v = vec22.create();
    return function applyEdgeAttraction(edge) {
      var na = edge.source;
      var nb = edge.target;
      vec22.sub(v, na.position, nb.position);
      var d = vec22.len(v);
      var w;
      if (this.edgeWeightInfluence === 0) {
        w = 1;
      } else if (this.edgeWeightInfluence === 1) {
        w = edge.weight;
      } else {
        w = Math.pow(edge.weight, this.edgeWeightInfluence);
      }
      var factor;
      if (this.preventOverlap) {
        d = d - na.size - nb.size;
        if (d <= 0) {
          return;
        }
      }
      if (this.linLogMode) {
        factor = -w * Math.log(d + 1) / (d + 1);
      } else {
        factor = -w;
      }
      vec22.scaleAndAdd(na.force, na.force, v, factor);
      vec22.scaleAndAdd(nb.force, nb.force, v, -factor);
    };
  }();
  forceAtlas2Proto.applyNodeGravity = function() {
    var v = vec22.create();
    return function(node) {
      vec22.sub(v, this.gravityCenter, node.position);
      var d = vec22.len(v);
      vec22.scaleAndAdd(node.force, node.force, v, this.gravity * node.mass / (d + 1));
    };
  }();
  forceAtlas2Proto.applyNodeStrongGravity = function() {
    var v = vec22.create();
    return function(node) {
      vec22.sub(v, this.gravityCenter, node.position);
      vec22.scaleAndAdd(node.force, node.force, v, this.gravity * node.mass);
    };
  }();
  forceAtlas2Proto.updateBBox = function() {
    var minX = Infinity;
    var minY = Infinity;
    var maxX = -Infinity;
    var maxY = -Infinity;
    for (var i = 0; i < this.nodes.length; i++) {
      var pos = this.nodes[i].position;
      minX = Math.min(minX, pos[0]);
      minY = Math.min(minY, pos[1]);
      maxX = Math.max(maxX, pos[0]);
      maxY = Math.max(maxY, pos[1]);
    }
    this.bbox[0] = minX;
    this.bbox[1] = minY;
    this.bbox[2] = maxX;
    this.bbox[3] = maxY;
  };
  forceAtlas2Proto.getGlobalSpeed = function() {
    return this._globalSpeed;
  };
  var forceAtlas2 = null;
  self.onmessage = function(e2) {
    switch (e2.data.cmd) {
      case "init":
        forceAtlas2 = new ForceAtlas22();
        forceAtlas2.initNodes(e2.data.nodesPosition, e2.data.nodesMass, e2.data.nodesSize);
        forceAtlas2.initEdges(e2.data.edges, e2.data.edgesWeight);
        break;
      case "updateConfig":
        if (forceAtlas2) {
          for (var name in e2.data.config) {
            forceAtlas2[name] = e2.data.config[name];
          }
        }
        break;
      case "update":
        var steps = e2.data.steps;
        if (forceAtlas2) {
          for (var i = 0; i < steps; i++) {
            forceAtlas2.update();
          }
          var nNodes = forceAtlas2.nodes.length;
          var positionArr = new Float32Array(nNodes * 2);
          for (var i = 0; i < nNodes; i++) {
            var node = forceAtlas2.nodes[i];
            positionArr[i * 2] = node.position[0];
            positionArr[i * 2 + 1] = node.position[1];
          }
          self.postMessage({
            buffer: positionArr.buffer,
            globalSpeed: forceAtlas2.getGlobalSpeed()
          }, [positionArr.buffer]);
        } else {
          var emptyArr = new Float32Array();
          self.postMessage({
            buffer: emptyArr.buffer,
            globalSpeed: forceAtlas2.getGlobalSpeed()
          }, [emptyArr.buffer]);
        }
        break;
    }
  };
}
var workerUrl = forceAtlas2Worker.toString();
workerUrl = workerUrl.slice(workerUrl.indexOf("{") + 1, workerUrl.lastIndexOf("}"));
var defaultConfigs = {
  barnesHutOptimize: true,
  barnesHutTheta: 1.5,
  repulsionByDegree: true,
  linLogMode: false,
  strongGravityMode: false,
  gravity: 1,
  scaling: 1,
  edgeWeightInfluence: 1,
  jitterTolerence: 0.1,
  preventOverlap: false,
  dissuadeHubs: false,
  gravityCenter: null
};
var ForceAtlas2 = function(options) {
  for (var name in defaultConfigs) {
    this[name] = defaultConfigs[name];
  }
  if (options) {
    for (var name in options) {
      this[name] = options[name];
    }
  }
  this._nodes = [];
  this._edges = [];
  this._disposed = false;
  this._positionTex = new Texture2D({
    type: Texture.FLOAT,
    flipY: false,
    minFilter: Texture.NEAREST,
    magFilter: Texture.NEAREST
  });
};
ForceAtlas2.prototype.initData = function(nodes, edges) {
  var bb = new Blob([workerUrl]);
  var blobURL = window.URL.createObjectURL(bb);
  this._worker = new Worker(blobURL);
  this._worker.onmessage = this._$onupdate.bind(this);
  this._nodes = nodes;
  this._edges = edges;
  this._frame = 0;
  var nNodes = nodes.length;
  var nEdges = edges.length;
  var positionArr = new Float32Array(nNodes * 2);
  var massArr = new Float32Array(nNodes);
  var sizeArr = new Float32Array(nNodes);
  var edgeArr = new Float32Array(nEdges * 2);
  var edgeWeightArr = new Float32Array(nEdges);
  for (var i = 0; i < nodes.length; i++) {
    var node = nodes[i];
    positionArr[i * 2] = node.x;
    positionArr[i * 2 + 1] = node.y;
    massArr[i] = node.mass == null ? 1 : node.mass;
    sizeArr[i] = node.size == null ? 1 : node.size;
  }
  for (var i = 0; i < edges.length; i++) {
    var edge = edges[i];
    var source = edge.node1;
    var target = edge.node2;
    edgeArr[i * 2] = source;
    edgeArr[i * 2 + 1] = target;
    edgeWeightArr[i] = edge.weight == null ? 1 : edge.weight;
  }
  var textureWidth = Math.ceil(Math.sqrt(nodes.length));
  var textureHeight = textureWidth;
  var pixels = new Float32Array(textureWidth * textureHeight * 4);
  var positionTex = this._positionTex;
  positionTex.width = textureWidth;
  positionTex.height = textureHeight;
  positionTex.pixels = pixels;
  this._worker.postMessage({
    cmd: "init",
    nodesPosition: positionArr,
    nodesMass: massArr,
    nodesSize: sizeArr,
    edges: edgeArr,
    edgesWeight: edgeWeightArr
  });
  this._globalSpeed = Infinity;
};
ForceAtlas2.prototype.updateOption = function(options) {
  var config = {};
  for (var name in defaultConfigs) {
    config[name] = defaultConfigs[name];
  }
  var nodes = this._nodes;
  var edges = this._edges;
  var nNodes = nodes.length;
  if (nNodes > 5e4) {
    config.jitterTolerence = 10;
  } else if (nNodes > 5e3) {
    config.jitterTolerence = 1;
  } else {
    config.jitterTolerence = 0.1;
  }
  if (nNodes > 100) {
    config.scaling = 2;
  } else {
    config.scaling = 10;
  }
  if (nNodes > 1e3) {
    config.barnesHutOptimize = true;
  } else {
    config.barnesHutOptimize = false;
  }
  if (options) {
    for (var name in defaultConfigs) {
      if (options[name] != null) {
        config[name] = options[name];
      }
    }
  }
  if (!config.gravityCenter) {
    var min = [Infinity, Infinity];
    var max = [-Infinity, -Infinity];
    for (var i = 0; i < nodes.length; i++) {
      min[0] = Math.min(nodes[i].x, min[0]);
      min[1] = Math.min(nodes[i].y, min[1]);
      max[0] = Math.max(nodes[i].x, max[0]);
      max[1] = Math.max(nodes[i].y, max[1]);
    }
    config.gravityCenter = [(min[0] + max[0]) * 0.5, (min[1] + max[1]) * 0.5];
  }
  for (var i = 0; i < edges.length; i++) {
    var node1 = edges[i].node1;
    var node2 = edges[i].node2;
    nodes[node1].degree = (nodes[node1].degree || 0) + 1;
    nodes[node2].degree = (nodes[node2].degree || 0) + 1;
  }
  if (this._worker) {
    this._worker.postMessage({
      cmd: "updateConfig",
      config
    });
  }
};
ForceAtlas2.prototype.update = function(renderer, steps, cb) {
  if (steps == null) {
    steps = 1;
  }
  steps = Math.max(steps, 1);
  this._frame += steps;
  this._onupdate = cb;
  if (this._worker) {
    this._worker.postMessage({
      cmd: "update",
      steps: Math.round(steps)
    });
  }
};
ForceAtlas2.prototype._$onupdate = function(e2) {
  if (this._disposed) {
    return;
  }
  var positionArr = new Float32Array(e2.data.buffer);
  this._globalSpeed = e2.data.globalSpeed;
  this._positionArr = positionArr;
  this._updateTexture(positionArr);
  this._onupdate && this._onupdate();
};
ForceAtlas2.prototype.getNodePositionTexture = function() {
  return this._positionTex;
};
ForceAtlas2.prototype.getNodeUV = function(nodeIndex, uv) {
  uv = uv || [];
  var textureWidth = this._positionTex.width;
  var textureHeight = this._positionTex.height;
  uv[0] = nodeIndex % textureWidth / (textureWidth - 1);
  uv[1] = Math.floor(nodeIndex / textureWidth) / (textureHeight - 1);
  return uv;
};
ForceAtlas2.prototype.getNodes = function() {
  return this._nodes;
};
ForceAtlas2.prototype.getEdges = function() {
  return this._edges;
};
ForceAtlas2.prototype.isFinished = function(maxSteps) {
  return this._frame > maxSteps;
};
ForceAtlas2.prototype.getNodePosition = function(renderer, out) {
  if (!out) {
    out = new Float32Array(this._nodes.length * 2);
  }
  if (this._positionArr) {
    for (var i = 0; i < this._positionArr.length; i++) {
      out[i] = this._positionArr[i];
    }
  }
  return out;
};
ForceAtlas2.prototype._updateTexture = function(positionArr) {
  var pixels = this._positionTex.pixels;
  var offset = 0;
  for (var i = 0; i < positionArr.length; ) {
    pixels[offset++] = positionArr[i++];
    pixels[offset++] = positionArr[i++];
    pixels[offset++] = 1;
    pixels[offset++] = 1;
  }
  this._positionTex.dirty();
};
ForceAtlas2.prototype.dispose = function(renderer) {
  this._disposed = true;
  this._worker = null;
};
var Roam2DControl = Base.extend(function() {
  return {
    /**
     * @type {module:zrender~ZRender}
     */
    zr: null,
    /**
     * @type {module:echarts-gl/core/ViewGL}
     */
    viewGL: null,
    minZoom: 0.2,
    maxZoom: 5,
    _needsUpdate: false,
    _dx: 0,
    _dy: 0,
    _zoom: 1
  };
}, function() {
  this._mouseDownHandler = this._mouseDownHandler.bind(this);
  this._mouseWheelHandler = this._mouseWheelHandler.bind(this);
  this._mouseMoveHandler = this._mouseMoveHandler.bind(this);
  this._mouseUpHandler = this._mouseUpHandler.bind(this);
  this._update = this._update.bind(this);
}, {
  init: function() {
    var zr = this.zr;
    zr.on("mousedown", this._mouseDownHandler);
    zr.on("mousewheel", this._mouseWheelHandler);
    zr.on("globalout", this._mouseUpHandler);
    zr.animation.on("frame", this._update);
  },
  setTarget: function(target) {
    this._target = target;
  },
  setZoom: function(zoom) {
    this._zoom = Math.max(Math.min(zoom, this.maxZoom), this.minZoom);
    this._needsUpdate = true;
  },
  setOffset: function(offset) {
    this._dx = offset[0];
    this._dy = offset[1];
    this._needsUpdate = true;
  },
  getZoom: function() {
    return this._zoom;
  },
  getOffset: function() {
    return [this._dx, this._dy];
  },
  _update: function() {
    if (!this._target) {
      return;
    }
    if (!this._needsUpdate) {
      return;
    }
    var target = this._target;
    var scale = this._zoom;
    target.position.x = this._dx;
    target.position.y = this._dy;
    target.scale.set(scale, scale, scale);
    this.zr.refresh();
    this._needsUpdate = false;
    this.trigger("update");
  },
  _mouseDownHandler: function(e2) {
    if (e2.target) {
      return;
    }
    var x = e2.offsetX;
    var y = e2.offsetY;
    if (this.viewGL && !this.viewGL.containPoint(x, y)) {
      return;
    }
    this.zr.on("mousemove", this._mouseMoveHandler);
    this.zr.on("mouseup", this._mouseUpHandler);
    var pos = this._convertPos(x, y);
    this._x = pos.x;
    this._y = pos.y;
  },
  // Convert pos from screen space to viewspace.
  _convertPos: function(x, y) {
    var camera2 = this.viewGL.camera;
    var viewport = this.viewGL.viewport;
    return {
      x: (x - viewport.x) / viewport.width * (camera2.right - camera2.left) + camera2.left,
      y: (y - viewport.y) / viewport.height * (camera2.bottom - camera2.top) + camera2.top
    };
  },
  _mouseMoveHandler: function(e2) {
    var pos = this._convertPos(e2.offsetX, e2.offsetY);
    this._dx += pos.x - this._x;
    this._dy += pos.y - this._y;
    this._x = pos.x;
    this._y = pos.y;
    this._needsUpdate = true;
  },
  _mouseUpHandler: function(e2) {
    this.zr.off("mousemove", this._mouseMoveHandler);
    this.zr.off("mouseup", this._mouseUpHandler);
  },
  _mouseWheelHandler: function(e2) {
    e2 = e2.event;
    var delta = e2.wheelDelta || -e2.detail;
    if (delta === 0) {
      return;
    }
    var x = e2.offsetX;
    var y = e2.offsetY;
    if (this.viewGL && !this.viewGL.containPoint(x, y)) {
      return;
    }
    var zoomScale = delta > 0 ? 1.1 : 0.9;
    var newZoom = Math.max(Math.min(this._zoom * zoomScale, this.maxZoom), this.minZoom);
    zoomScale = newZoom / this._zoom;
    var pos = this._convertPos(x, y);
    var fixX = (pos.x - this._dx) * (zoomScale - 1);
    var fixY = (pos.y - this._dy) * (zoomScale - 1);
    this._dx -= fixX;
    this._dy -= fixY;
    this._zoom = newZoom;
    this._needsUpdate = true;
  },
  dispose: function() {
    var zr = this.zr;
    zr.off("mousedown", this._mouseDownHandler);
    zr.off("mousemove", this._mouseMoveHandler);
    zr.off("mouseup", this._mouseUpHandler);
    zr.off("mousewheel", this._mouseWheelHandler);
    zr.off("globalout", this._mouseUpHandler);
    zr.animation.off("frame", this._update);
  }
});
const lines2DGLSL = "@export ecgl.lines2D.vertex\n\nuniform mat4 worldViewProjection : WORLDVIEWPROJECTION;\n\nattribute vec2 position: POSITION;\nattribute vec4 a_Color : COLOR;\nvarying vec4 v_Color;\n\n#ifdef POSITIONTEXTURE_ENABLED\nuniform sampler2D positionTexture;\n#endif\n\nvoid main()\n{\n gl_Position = worldViewProjection * vec4(position, -10.0, 1.0);\n\n v_Color = a_Color;\n}\n\n@end\n\n@export ecgl.lines2D.fragment\n\nuniform vec4 color : [1.0, 1.0, 1.0, 1.0];\n\nvarying vec4 v_Color;\n\nvoid main()\n{\n gl_FragColor = color * v_Color;\n}\n@end\n\n\n@export ecgl.meshLines2D.vertex\n\nattribute vec2 position: POSITION;\nattribute vec2 normal;\nattribute float offset;\nattribute vec4 a_Color : COLOR;\n\nuniform mat4 worldViewProjection : WORLDVIEWPROJECTION;\nuniform vec4 viewport : VIEWPORT;\n\nvarying vec4 v_Color;\nvarying float v_Miter;\n\nvoid main()\n{\n vec4 p2 = worldViewProjection * vec4(position + normal, -10.0, 1.0);\n gl_Position = worldViewProjection * vec4(position, -10.0, 1.0);\n\n p2.xy /= p2.w;\n gl_Position.xy /= gl_Position.w;\n\n vec2 N = normalize(p2.xy - gl_Position.xy);\n gl_Position.xy += N * offset / viewport.zw * 2.0;\n\n gl_Position.xy *= gl_Position.w;\n\n v_Color = a_Color;\n}\n@end\n\n\n@export ecgl.meshLines2D.fragment\n\nuniform vec4 color : [1.0, 1.0, 1.0, 1.0];\n\nvarying vec4 v_Color;\nvarying float v_Miter;\n\nvoid main()\n{\n gl_FragColor = color * v_Color;\n}\n\n@end";
var vec2 = glmatrix.vec2;
graphicGL.Shader.import(lines2DGLSL);
var globalLayoutId = 1;
const GraphGLView = ChartView.extend({
  type: "graphGL",
  __ecgl__: true,
  init: function(ecModel, api) {
    this.groupGL = new graphicGL.Node();
    this.viewGL = new ViewGL("orthographic");
    this.viewGL.camera.left = this.viewGL.camera.right = 0;
    this.viewGL.add(this.groupGL);
    this._pointsBuilder = new PointsBuilder(true, api);
    this._forceEdgesMesh = new graphicGL.Mesh({
      material: new graphicGL.Material({
        shader: graphicGL.createShader("ecgl.forceAtlas2.edges"),
        transparent: true,
        depthMask: false,
        depthTest: false
      }),
      $ignorePicking: true,
      geometry: new graphicGL.Geometry({
        attributes: {
          node: new graphicGL.Geometry.Attribute("node", "float", 2),
          color: new graphicGL.Geometry.Attribute("color", "float", 4, "COLOR")
        },
        dynamic: true,
        mainAttribute: "node"
      }),
      renderOrder: -1,
      mode: graphicGL.Mesh.LINES
    });
    this._edgesMesh = new graphicGL.Mesh({
      material: new graphicGL.Material({
        shader: graphicGL.createShader("ecgl.meshLines2D"),
        transparent: true,
        depthMask: false,
        depthTest: false
      }),
      $ignorePicking: true,
      geometry: new LinesGeometry$1({
        useNativeLine: false,
        dynamic: true
      }),
      renderOrder: -1,
      culling: false
    });
    this._layoutId = 0;
    this._control = new Roam2DControl({
      zr: api.getZr(),
      viewGL: this.viewGL
    });
    this._control.setTarget(this.groupGL);
    this._control.init();
    this._clickHandler = this._clickHandler.bind(this);
  },
  render: function(seriesModel, ecModel, api) {
    this.groupGL.add(this._pointsBuilder.rootNode);
    this._model = seriesModel;
    this._api = api;
    this._initLayout(seriesModel, ecModel, api);
    this._pointsBuilder.update(seriesModel, ecModel, api);
    if (!(this._forceLayoutInstance instanceof ForceAtlas2GPU)) {
      this.groupGL.remove(this._forceEdgesMesh);
    }
    this._updateCamera(seriesModel, api);
    this._control.off("update");
    this._control.on("update", function() {
      api.dispatchAction({
        type: "graphGLRoam",
        seriesId: seriesModel.id,
        zoom: this._control.getZoom(),
        offset: this._control.getOffset()
      });
      this._pointsBuilder.updateView(this.viewGL.camera);
    }, this);
    this._control.setZoom(retrieve.firstNotNull(seriesModel.get("zoom"), 1));
    this._control.setOffset(seriesModel.get("offset") || [0, 0]);
    var mesh2 = this._pointsBuilder.getPointsMesh();
    mesh2.off("mousemove", this._mousemoveHandler);
    mesh2.off("mouseout", this._mouseOutHandler, this);
    api.getZr().off("click", this._clickHandler);
    this._pointsBuilder.highlightOnMouseover = true;
    if (seriesModel.get("focusNodeAdjacency")) {
      var focusNodeAdjacencyOn = seriesModel.get("focusNodeAdjacencyOn");
      if (focusNodeAdjacencyOn === "click") {
        api.getZr().on("click", this._clickHandler);
      } else if (focusNodeAdjacencyOn === "mouseover") {
        mesh2.on("mousemove", this._mousemoveHandler, this);
        mesh2.on("mouseout", this._mouseOutHandler, this);
        this._pointsBuilder.highlightOnMouseover = false;
      } else ;
    }
    this._lastMouseOverDataIndex = -1;
  },
  _clickHandler: function(e2) {
    if (this._layouting) {
      return;
    }
    var dataIndex = this._pointsBuilder.getPointsMesh().dataIndex;
    if (dataIndex >= 0) {
      this._api.dispatchAction({
        type: "graphGLFocusNodeAdjacency",
        seriesId: this._model.id,
        dataIndex
      });
    } else {
      this._api.dispatchAction({
        type: "graphGLUnfocusNodeAdjacency",
        seriesId: this._model.id
      });
    }
  },
  _mousemoveHandler: function(e2) {
    if (this._layouting) {
      return;
    }
    var dataIndex = this._pointsBuilder.getPointsMesh().dataIndex;
    if (dataIndex >= 0) {
      if (dataIndex !== this._lastMouseOverDataIndex) {
        this._api.dispatchAction({
          type: "graphGLFocusNodeAdjacency",
          seriesId: this._model.id,
          dataIndex
        });
      }
    } else {
      this._mouseOutHandler(e2);
    }
    this._lastMouseOverDataIndex = dataIndex;
  },
  _mouseOutHandler: function(e2) {
    if (this._layouting) {
      return;
    }
    this._api.dispatchAction({
      type: "graphGLUnfocusNodeAdjacency",
      seriesId: this._model.id
    });
    this._lastMouseOverDataIndex = -1;
  },
  _updateForceEdgesGeometry: function(edges, seriesModel) {
    var geometry = this._forceEdgesMesh.geometry;
    var edgeData = seriesModel.getEdgeData();
    var offset = 0;
    var layoutInstance = this._forceLayoutInstance;
    var vertexCount = edgeData.count() * 2;
    geometry.attributes.node.init(vertexCount);
    geometry.attributes.color.init(vertexCount);
    edgeData.each(function(idx) {
      var edge = edges[idx];
      geometry.attributes.node.set(offset, layoutInstance.getNodeUV(edge.node1));
      geometry.attributes.node.set(offset + 1, layoutInstance.getNodeUV(edge.node2));
      var color = getItemVisualColor(edgeData, edge.dataIndex);
      var colorArr = graphicGL.parseColor(color);
      colorArr[3] *= retrieve.firstNotNull(getItemVisualOpacity(edgeData, edge.dataIndex), 1);
      geometry.attributes.color.set(offset, colorArr);
      geometry.attributes.color.set(offset + 1, colorArr);
      offset += 2;
    });
    geometry.dirty();
  },
  _updateMeshLinesGeometry: function() {
    var edgeData = this._model.getEdgeData();
    var geometry = this._edgesMesh.geometry;
    var edgeData = this._model.getEdgeData();
    var points = this._model.getData().getLayout("points");
    geometry.resetOffset();
    geometry.setVertexCount(edgeData.count() * geometry.getLineVertexCount());
    geometry.setTriangleCount(edgeData.count() * geometry.getLineTriangleCount());
    var p02 = [];
    var p12 = [];
    var lineWidthQuery = ["lineStyle", "width"];
    this._originalEdgeColors = new Float32Array(edgeData.count() * 4);
    this._edgeIndicesMap = new Float32Array(edgeData.count());
    edgeData.each(function(idx) {
      var edge = edgeData.graph.getEdgeByIndex(idx);
      var idx1 = edge.node1.dataIndex * 2;
      var idx2 = edge.node2.dataIndex * 2;
      p02[0] = points[idx1];
      p02[1] = points[idx1 + 1];
      p12[0] = points[idx2];
      p12[1] = points[idx2 + 1];
      var color = getItemVisualColor(edgeData, edge.dataIndex);
      var colorArr = graphicGL.parseColor(color);
      colorArr[3] *= retrieve.firstNotNull(getItemVisualOpacity(edgeData, edge.dataIndex), 1);
      var itemModel = edgeData.getItemModel(edge.dataIndex);
      var lineWidth = retrieve.firstNotNull(itemModel.get(lineWidthQuery), 1) * this._api.getDevicePixelRatio();
      geometry.addLine(p02, p12, colorArr, lineWidth);
      for (var k = 0; k < 4; k++) {
        this._originalEdgeColors[edge.dataIndex * 4 + k] = colorArr[k];
      }
      this._edgeIndicesMap[edge.dataIndex] = idx;
    }, this);
    geometry.dirty();
  },
  _updateForceNodesGeometry: function(nodeData) {
    var pointsMesh = this._pointsBuilder.getPointsMesh();
    var pos = [];
    for (var i = 0; i < nodeData.count(); i++) {
      this._forceLayoutInstance.getNodeUV(i, pos);
      pointsMesh.geometry.attributes.position.set(i, pos);
    }
    pointsMesh.geometry.dirty("position");
  },
  _initLayout: function(seriesModel, ecModel, api) {
    var layout = seriesModel.get("layout");
    var graph = seriesModel.getGraph();
    var boxLayoutOption = seriesModel.getBoxLayoutParams();
    var viewport = getLayoutRect(boxLayoutOption, {
      width: api.getWidth(),
      height: api.getHeight()
    });
    if (layout === "force") {
      layout = "forceAtlas2";
    }
    this.stopLayout(seriesModel, ecModel, api, {
      beforeLayout: true
    });
    var nodeData = seriesModel.getData();
    var edgeData = seriesModel.getData();
    if (layout === "forceAtlas2") {
      var layoutModel = seriesModel.getModel("forceAtlas2");
      var layoutInstance = this._forceLayoutInstance;
      var nodes = [];
      var edges = [];
      var nodeDataExtent = nodeData.getDataExtent("value");
      var edgeDataExtent = edgeData.getDataExtent("value");
      var edgeWeightRange = retrieve.firstNotNull(layoutModel.get("edgeWeight"), 1);
      var nodeWeightRange = retrieve.firstNotNull(layoutModel.get("nodeWeight"), 1);
      if (typeof edgeWeightRange === "number") {
        edgeWeightRange = [edgeWeightRange, edgeWeightRange];
      }
      if (typeof nodeWeightRange === "number") {
        nodeWeightRange = [nodeWeightRange, nodeWeightRange];
      }
      var offset = 0;
      var nodesIndicesMap = {};
      var layoutPoints = new Float32Array(nodeData.count() * 2);
      graph.eachNode(function(node) {
        var dataIndex = node.dataIndex;
        var value = nodeData.get("value", dataIndex);
        var x;
        var y;
        if (nodeData.hasItemOption) {
          var itemModel = nodeData.getItemModel(dataIndex);
          x = itemModel.get("x");
          y = itemModel.get("y");
        }
        if (x == null) {
          x = viewport.x + Math.random() * viewport.width;
          y = viewport.y + Math.random() * viewport.height;
        }
        layoutPoints[offset * 2] = x;
        layoutPoints[offset * 2 + 1] = y;
        nodesIndicesMap[node.id] = offset++;
        var mass = linearMap(value, nodeDataExtent, nodeWeightRange);
        if (isNaN(mass)) {
          if (!isNaN(nodeWeightRange[0])) {
            mass = nodeWeightRange[0];
          } else {
            mass = 1;
          }
        }
        nodes.push({
          x,
          y,
          mass,
          size: nodeData.getItemVisual(dataIndex, "symbolSize")
        });
      });
      nodeData.setLayout("points", layoutPoints);
      graph.eachEdge(function(edge) {
        var dataIndex = edge.dataIndex;
        var value = nodeData.get("value", dataIndex);
        var weight = linearMap(value, edgeDataExtent, edgeWeightRange);
        if (isNaN(weight)) {
          if (!isNaN(edgeWeightRange[0])) {
            weight = edgeWeightRange[0];
          } else {
            weight = 1;
          }
        }
        edges.push({
          node1: nodesIndicesMap[edge.node1.id],
          node2: nodesIndicesMap[edge.node2.id],
          weight,
          dataIndex
        });
      });
      if (!layoutInstance) {
        var isGPU = layoutModel.get("GPU");
        if (this._forceLayoutInstance) {
          if (isGPU && !(this._forceLayoutInstance instanceof ForceAtlas2GPU) || !isGPU && !(this._forceLayoutInstance instanceof ForceAtlas2)) {
            this._forceLayoutInstanceToDispose = this._forceLayoutInstance;
          }
        }
        layoutInstance = this._forceLayoutInstance = isGPU ? new ForceAtlas2GPU() : new ForceAtlas2();
      }
      layoutInstance.initData(nodes, edges);
      layoutInstance.updateOption(layoutModel.option);
      this._updateForceEdgesGeometry(layoutInstance.getEdges(), seriesModel);
      this._updatePositionTexture();
      api.dispatchAction({
        type: "graphGLStartLayout",
        from: this.uid
      });
    } else {
      var layoutPoints = new Float32Array(nodeData.count() * 2);
      var offset = 0;
      graph.eachNode(function(node) {
        var dataIndex = node.dataIndex;
        var x;
        var y;
        if (nodeData.hasItemOption) {
          var itemModel = nodeData.getItemModel(dataIndex);
          x = itemModel.get("x");
          y = itemModel.get("y");
        }
        layoutPoints[offset++] = x;
        layoutPoints[offset++] = y;
      });
      nodeData.setLayout("points", layoutPoints);
      this._updateAfterLayout(seriesModel, ecModel, api);
    }
  },
  _updatePositionTexture: function() {
    var positionTex = this._forceLayoutInstance.getNodePositionTexture();
    this._pointsBuilder.setPositionTexture(positionTex);
    this._forceEdgesMesh.material.set("positionTex", positionTex);
  },
  startLayout: function(seriesModel, ecModel, api, payload) {
    if (payload && payload.from != null && payload.from !== this.uid) {
      return;
    }
    var viewGL = this.viewGL;
    var api = this._api;
    var layoutInstance = this._forceLayoutInstance;
    var data = this._model.getData();
    var layoutModel = this._model.getModel("forceAtlas2");
    if (!layoutInstance) {
      return;
    }
    this.groupGL.remove(this._edgesMesh);
    this.groupGL.add(this._forceEdgesMesh);
    if (!this._forceLayoutInstance) {
      return;
    }
    this._updateForceNodesGeometry(seriesModel.getData());
    this._pointsBuilder.hideLabels();
    var self2 = this;
    var layoutId = this._layoutId = globalLayoutId++;
    var maxSteps = layoutModel.getShallow("maxSteps");
    var steps = layoutModel.getShallow("steps");
    var stepsCount = 0;
    var syncStepCount = Math.max(steps * 2, 20);
    var doLayout = function(layoutId2) {
      if (layoutId2 !== self2._layoutId) {
        return;
      }
      if (layoutInstance.isFinished(maxSteps)) {
        api.dispatchAction({
          type: "graphGLStopLayout",
          from: self2.uid
        });
        api.dispatchAction({
          type: "graphGLFinishLayout",
          points: data.getLayout("points"),
          from: self2.uid
        });
        return;
      }
      layoutInstance.update(viewGL.layer.renderer, steps, function() {
        self2._updatePositionTexture();
        stepsCount += steps;
        if (stepsCount >= syncStepCount) {
          self2._syncNodePosition(seriesModel);
          stepsCount = 0;
        }
        api.getZr().refresh();
        requestAnimationFrame(function() {
          doLayout(layoutId2);
        });
      });
    };
    requestAnimationFrame(function() {
      if (self2._forceLayoutInstanceToDispose) {
        self2._forceLayoutInstanceToDispose.dispose(viewGL.layer.renderer);
        self2._forceLayoutInstanceToDispose = null;
      }
      doLayout(layoutId);
    });
    this._layouting = true;
  },
  stopLayout: function(seriesModel, ecModel, api, payload) {
    if (payload && payload.from != null && payload.from !== this.uid) {
      return;
    }
    this._layoutId = 0;
    this.groupGL.remove(this._forceEdgesMesh);
    this.groupGL.add(this._edgesMesh);
    if (!this._forceLayoutInstance) {
      return;
    }
    if (!this.viewGL.layer) {
      return;
    }
    if (!(payload && payload.beforeLayout)) {
      this._syncNodePosition(seriesModel);
      this._updateAfterLayout(seriesModel, ecModel, api);
    }
    this._api.getZr().refresh();
    this._layouting = false;
  },
  _syncNodePosition: function(seriesModel) {
    var points = this._forceLayoutInstance.getNodePosition(this.viewGL.layer.renderer);
    seriesModel.getData().setLayout("points", points);
    seriesModel.setNodePosition(points);
  },
  _updateAfterLayout: function(seriesModel, ecModel, api) {
    this._updateMeshLinesGeometry();
    this._pointsBuilder.removePositionTexture();
    this._pointsBuilder.updateLayout(seriesModel, ecModel, api);
    this._pointsBuilder.updateView(this.viewGL.camera);
    this._pointsBuilder.updateLabels();
    this._pointsBuilder.showLabels();
  },
  focusNodeAdjacency: function(seriesModel, ecModel, api, payload) {
    var data = this._model.getData();
    this._downplayAll();
    var dataIndex = payload.dataIndex;
    var graph = data.graph;
    var focusNodes = [];
    var node = graph.getNodeByIndex(dataIndex);
    focusNodes.push(node);
    node.edges.forEach(function(edge) {
      if (edge.dataIndex < 0) {
        return;
      }
      edge.node1 !== node && focusNodes.push(edge.node1);
      edge.node2 !== node && focusNodes.push(edge.node2);
    }, this);
    this._pointsBuilder.fadeOutAll(0.05);
    this._fadeOutEdgesAll(0.05);
    focusNodes.forEach(function(node2) {
      this._pointsBuilder.highlight(data, node2.dataIndex);
    }, this);
    this._pointsBuilder.updateLabels(focusNodes.map(function(node2) {
      return node2.dataIndex;
    }));
    var focusEdges = [];
    node.edges.forEach(function(edge) {
      if (edge.dataIndex >= 0) {
        this._highlightEdge(edge.dataIndex);
        focusEdges.push(edge);
      }
    }, this);
    this._focusNodes = focusNodes;
    this._focusEdges = focusEdges;
  },
  unfocusNodeAdjacency: function(seriesModel, ecModel, api, payload) {
    this._downplayAll();
    this._pointsBuilder.fadeInAll();
    this._fadeInEdgesAll();
    this._pointsBuilder.updateLabels();
  },
  _highlightEdge: function(dataIndex) {
    var itemModel = this._model.getEdgeData().getItemModel(dataIndex);
    var emphasisColor = graphicGL.parseColor(itemModel.get("emphasis.lineStyle.color") || itemModel.get("lineStyle.color"));
    var emphasisOpacity = retrieve.firstNotNull(itemModel.get("emphasis.lineStyle.opacity"), itemModel.get("lineStyle.opacity"), 1);
    emphasisColor[3] *= emphasisOpacity;
    this._edgesMesh.geometry.setItemColor(this._edgeIndicesMap[dataIndex], emphasisColor);
  },
  _downplayAll: function() {
    if (this._focusNodes) {
      this._focusNodes.forEach(function(node) {
        this._pointsBuilder.downplay(this._model.getData(), node.dataIndex);
      }, this);
    }
    if (this._focusEdges) {
      this._focusEdges.forEach(function(edge) {
        this._downplayEdge(edge.dataIndex);
      }, this);
    }
  },
  _downplayEdge: function(dataIndex) {
    var color = this._getColor(dataIndex, []);
    this._edgesMesh.geometry.setItemColor(this._edgeIndicesMap[dataIndex], color);
  },
  _setEdgeFade: /* @__PURE__ */ function() {
    var color = [];
    return function(dataIndex, percent) {
      this._getColor(dataIndex, color);
      color[3] *= percent;
      this._edgesMesh.geometry.setItemColor(this._edgeIndicesMap[dataIndex], color);
    };
  }(),
  _getColor: function(dataIndex, out) {
    for (var i = 0; i < 4; i++) {
      out[i] = this._originalEdgeColors[dataIndex * 4 + i];
    }
    return out;
  },
  _fadeOutEdgesAll: function(percent) {
    var graph = this._model.getData().graph;
    graph.eachEdge(function(edge) {
      this._setEdgeFade(edge.dataIndex, percent);
    }, this);
  },
  _fadeInEdgesAll: function() {
    this._fadeOutEdgesAll(1);
  },
  _updateCamera: function(seriesModel, api) {
    this.viewGL.setViewport(0, 0, api.getWidth(), api.getHeight(), api.getDevicePixelRatio());
    var camera2 = this.viewGL.camera;
    var nodeData = seriesModel.getData();
    var points = nodeData.getLayout("points");
    var min = vec2.create(Infinity, Infinity);
    var max = vec2.create(-Infinity, -Infinity);
    var pt = [];
    for (var i = 0; i < points.length; ) {
      pt[0] = points[i++];
      pt[1] = points[i++];
      vec2.min(min, min, pt);
      vec2.max(max, max, pt);
    }
    var cy = (max[1] + min[1]) / 2;
    var cx = (max[0] + min[0]) / 2;
    if (cx > camera2.left && cx < camera2.right && cy < camera2.bottom && cy > camera2.top) {
      return;
    }
    var width = Math.max(max[0] - min[0], 10);
    var height = width / api.getWidth() * api.getHeight();
    width *= 1.4;
    height *= 1.4;
    min[0] -= width * 0.2;
    camera2.left = min[0];
    camera2.top = cy - height / 2;
    camera2.bottom = cy + height / 2;
    camera2.right = width + min[0];
    camera2.near = 0;
    camera2.far = 100;
  },
  dispose: function() {
    var renderer = this.viewGL.layer.renderer;
    if (this._forceLayoutInstance) {
      this._forceLayoutInstance.dispose(renderer);
    }
    this.groupGL.removeAll();
    this._layoutId = -1;
    this._pointsBuilder.dispose();
  },
  remove: function() {
    this.groupGL.removeAll();
    this._control.dispose();
  }
});
function normalize(a) {
  if (!(a instanceof Array)) {
    a = [a, a];
  }
  return a;
}
function install$2(registers) {
  registers.registerChartView(GraphGLView);
  registers.registerSeriesModel(GraphSeries);
  registers.registerVisual(function(ecModel) {
    const paletteScope = {};
    ecModel.eachSeriesByType("graphGL", function(seriesModel) {
      var categoriesData = seriesModel.getCategoriesData();
      var data = seriesModel.getData();
      var categoryNameIdxMap = {};
      categoriesData.each(function(idx) {
        var name = categoriesData.getName(idx);
        categoryNameIdxMap["ec-" + name] = idx;
        var itemModel = categoriesData.getItemModel(idx);
        var style = itemModel.getModel("itemStyle").getItemStyle();
        if (!style.fill) {
          style.fill = seriesModel.getColorFromPalette(name, paletteScope);
        }
        categoriesData.setItemVisual(idx, "style", style);
        var symbolVisualList = ["symbol", "symbolSize", "symbolKeepAspect"];
        for (let i = 0; i < symbolVisualList.length; i++) {
          var symbolVisual = itemModel.getShallow(symbolVisualList[i], true);
          if (symbolVisual != null) {
            categoriesData.setItemVisual(idx, symbolVisualList[i], symbolVisual);
          }
        }
      });
      if (categoriesData.count()) {
        data.each(function(idx) {
          var model = data.getItemModel(idx);
          let categoryIdx = model.getShallow("category");
          if (categoryIdx != null) {
            if (typeof categoryIdx === "string") {
              categoryIdx = categoryNameIdxMap["ec-" + categoryIdx];
            }
            var categoryStyle = categoriesData.getItemVisual(categoryIdx, "style");
            var style = data.ensureUniqueItemVisual(idx, "style");
            extend$2(style, categoryStyle);
            var visualList = ["symbol", "symbolSize", "symbolKeepAspect"];
            for (let i = 0; i < visualList.length; i++) {
              data.setItemVisual(idx, visualList[i], categoriesData.getItemVisual(categoryIdx, visualList[i]));
            }
          }
        });
      }
    });
  });
  registers.registerVisual(function(ecModel) {
    ecModel.eachSeriesByType("graphGL", function(seriesModel) {
      var graph = seriesModel.getGraph();
      var edgeData = seriesModel.getEdgeData();
      var symbolType = normalize(seriesModel.get("edgeSymbol"));
      var symbolSize = normalize(seriesModel.get("edgeSymbolSize"));
      edgeData.setVisual("drawType", "stroke");
      edgeData.setVisual("fromSymbol", symbolType && symbolType[0]);
      edgeData.setVisual("toSymbol", symbolType && symbolType[1]);
      edgeData.setVisual("fromSymbolSize", symbolSize && symbolSize[0]);
      edgeData.setVisual("toSymbolSize", symbolSize && symbolSize[1]);
      edgeData.setVisual("style", seriesModel.getModel("lineStyle").getLineStyle());
      edgeData.each(function(idx) {
        var itemModel = edgeData.getItemModel(idx);
        var edge = graph.getEdgeByIndex(idx);
        var symbolType2 = normalize(itemModel.getShallow("symbol", true));
        var symbolSize2 = normalize(itemModel.getShallow("symbolSize", true));
        var style = itemModel.getModel("lineStyle").getLineStyle();
        var existsStyle = edgeData.ensureUniqueItemVisual(idx, "style");
        extend$2(existsStyle, style);
        switch (existsStyle.stroke) {
          case "source": {
            var nodeStyle = edge.node1.getVisual("style");
            existsStyle.stroke = nodeStyle && nodeStyle.fill;
            break;
          }
          case "target": {
            var nodeStyle = edge.node2.getVisual("style");
            existsStyle.stroke = nodeStyle && nodeStyle.fill;
            break;
          }
        }
        symbolType2[0] && edge.setVisual("fromSymbol", symbolType2[0]);
        symbolType2[1] && edge.setVisual("toSymbol", symbolType2[1]);
        symbolSize2[0] && edge.setVisual("fromSymbolSize", symbolSize2[0]);
        symbolSize2[1] && edge.setVisual("toSymbolSize", symbolSize2[1]);
      });
    });
  });
  registers.registerAction({
    type: "graphGLRoam",
    event: "graphglroam",
    update: "series.graphGL:roam"
  }, function(payload, ecModel) {
    ecModel.eachComponent({
      mainType: "series",
      query: payload
    }, function(componentModel) {
      componentModel.setView(payload);
    });
  });
  function noop2() {
  }
  registers.registerAction({
    type: "graphGLStartLayout",
    event: "graphgllayoutstarted",
    update: "series.graphGL:startLayout"
  }, noop2);
  registers.registerAction({
    type: "graphGLStopLayout",
    event: "graphgllayoutstopped",
    update: "series.graphGL:stopLayout"
  }, noop2);
  registers.registerAction({
    type: "graphGLFocusNodeAdjacency",
    event: "graphGLFocusNodeAdjacency",
    update: "series.graphGL:focusNodeAdjacency"
  }, noop2);
  registers.registerAction({
    type: "graphGLUnfocusNodeAdjacency",
    event: "graphGLUnfocusNodeAdjacency",
    update: "series.graphGL:unfocusNodeAdjacency"
  }, noop2);
}
use(install$2);
const FlowGLSeries = SeriesModel.extend({
  type: "series.flowGL",
  dependencies: ["geo", "grid", "bmap"],
  visualStyleAccessPath: "itemStyle",
  getInitialData: function(option, ecModel) {
    var coordType = this.get("coordinateSystem");
    var coordSysDimensions = coordType === "geo" ? ["lng", "lat"] : getCoordinateSystemDimensions(coordType) || ["x", "y"];
    coordSysDimensions.push("vx", "vy");
    var dimensions = createDimensions(this.getSource(), {
      coordDimensions: coordSysDimensions,
      encodeDefine: this.get("encode"),
      dimensionsDefine: this.get("dimensions")
    });
    var data = new SeriesData(dimensions, this);
    data.initData(this.getSource());
    return data;
  },
  defaultOption: {
    coordinateSystem: "cartesian2d",
    zlevel: 10,
    supersampling: 1,
    // 128x128 particles
    particleType: "point",
    particleDensity: 128,
    particleSize: 1,
    particleSpeed: 1,
    particleTrail: 2,
    colorTexture: null,
    gridWidth: "auto",
    gridHeight: "auto",
    itemStyle: {
      color: "#fff",
      opacity: 0.8
    }
  }
});
var LinesGeometry = Geometry.extend(
  function() {
    return {
      dynamic: true,
      attributes: {
        position: new Geometry.Attribute("position", "float", 3, "POSITION")
      }
    };
  },
  /** @lends module: echarts-gl/util/geometry/LinesGeometry.prototype */
  {
    /**
     * Reset offset
     */
    resetOffset: function() {
      this._vertexOffset = 0;
      this._faceOffset = 0;
    },
    /**
     * @param {number} nVertex
     */
    setLineCount: function(nLine) {
      var attributes = this.attributes;
      var nVertex = 4 * nLine;
      var nTriangle = 2 * nLine;
      if (this.vertexCount !== nVertex) {
        attributes.position.init(nVertex);
      }
      if (this.triangleCount !== nTriangle) {
        if (nTriangle === 0) {
          this.indices = null;
        } else {
          this.indices = this.vertexCount > 65535 ? new Uint32Array(nTriangle * 3) : new Uint16Array(nTriangle * 3);
        }
      }
    },
    addLine: function(p) {
      var vertexOffset = this._vertexOffset;
      this.attributes.position.set(vertexOffset, [p[0], p[1], 1]);
      this.attributes.position.set(vertexOffset + 1, [p[0], p[1], -1]);
      this.attributes.position.set(vertexOffset + 2, [p[0], p[1], 2]);
      this.attributes.position.set(vertexOffset + 3, [p[0], p[1], -2]);
      this.setTriangleIndices(this._faceOffset++, [vertexOffset, vertexOffset + 1, vertexOffset + 2]);
      this.setTriangleIndices(this._faceOffset++, [vertexOffset + 1, vertexOffset + 2, vertexOffset + 3]);
      this._vertexOffset += 4;
    }
  }
);
const vectorFieldParticleGLSL = "@export ecgl.vfParticle.particle.fragment\n\nuniform sampler2D particleTexture;\nuniform sampler2D spawnTexture;\nuniform sampler2D velocityTexture;\n\nuniform float deltaTime;\nuniform float elapsedTime;\n\nuniform float speedScaling : 1.0;\n\nuniform vec2 textureSize;\nuniform vec4 region : [0, 0, 1, 1];\nuniform float firstFrameTime;\n\nvarying vec2 v_Texcoord;\n\n\nvoid main()\n{\n vec4 p = texture2D(particleTexture, v_Texcoord);\n bool spawn = false;\n if (p.w <= 0.0) {\n p = texture2D(spawnTexture, fract(v_Texcoord + elapsedTime / 10.0));\n p.w -= firstFrameTime;\n spawn = true;\n }\n vec2 v = texture2D(velocityTexture, fract(p.xy * region.zw + region.xy)).xy;\n v = (v - 0.5) * 2.0;\n p.z = length(v);\n p.xy += v * deltaTime / 10.0 * speedScaling;\n p.w -= deltaTime;\n\n if (spawn || p.xy != fract(p.xy)) {\n p.z = 0.0;\n }\n p.xy = fract(p.xy);\n\n gl_FragColor = p;\n}\n@end\n\n@export ecgl.vfParticle.renderPoints.vertex\n\n#define PI 3.1415926\n\nattribute vec2 texcoord : TEXCOORD_0;\n\nuniform sampler2D particleTexture;\nuniform mat4 worldViewProjection : WORLDVIEWPROJECTION;\n\nuniform float size : 1.0;\n\nvarying float v_Mag;\nvarying vec2 v_Uv;\n\nvoid main()\n{\n vec4 p = texture2D(particleTexture, texcoord);\n\n if (p.w > 0.0 && p.z > 1e-5) {\n gl_Position = worldViewProjection * vec4(p.xy * 2.0 - 1.0, 0.0, 1.0);\n }\n else {\n gl_Position = vec4(100000.0, 100000.0, 100000.0, 1.0);\n }\n\n v_Mag = p.z;\n v_Uv = p.xy;\n\n gl_PointSize = size;\n}\n\n@end\n\n@export ecgl.vfParticle.renderPoints.fragment\n\nuniform vec4 color : [1.0, 1.0, 1.0, 1.0];\nuniform sampler2D gradientTexture;\nuniform sampler2D colorTexture;\nuniform sampler2D spriteTexture;\n\nvarying float v_Mag;\nvarying vec2 v_Uv;\n\nvoid main()\n{\n gl_FragColor = color;\n#ifdef SPRITETEXTURE_ENABLED\n gl_FragColor *= texture2D(spriteTexture, gl_PointCoord);\n if (color.a == 0.0) {\n discard;\n }\n#endif\n#ifdef GRADIENTTEXTURE_ENABLED\n gl_FragColor *= texture2D(gradientTexture, vec2(v_Mag, 0.5));\n#endif\n#ifdef COLORTEXTURE_ENABLED\n gl_FragColor *= texture2D(colorTexture, v_Uv);\n#endif\n}\n\n@end\n\n@export ecgl.vfParticle.renderLines.vertex\n\n#define PI 3.1415926\n\nattribute vec3 position : POSITION;\n\nuniform sampler2D particleTexture;\nuniform sampler2D prevParticleTexture;\n\nuniform float size : 1.0;\nuniform vec4 vp: VIEWPORT;\nuniform mat4 worldViewProjection : WORLDVIEWPROJECTION;\n\nvarying float v_Mag;\nvarying vec2 v_Uv;\n\n@import clay.util.rand\n\nvoid main()\n{\n vec4 p = texture2D(particleTexture, position.xy);\n vec4 p2 = texture2D(prevParticleTexture, position.xy);\n\n p.xy = p.xy * 2.0 - 1.0;\n p2.xy = p2.xy * 2.0 - 1.0;\n\n if (p.w > 0.0 && p.z > 1e-5) {\n vec2 dir = normalize(p.xy - p2.xy);\n vec2 norm = vec2(dir.y / vp.z, -dir.x / vp.w) * sign(position.z) * size;\n if (abs(position.z) == 2.0) {\n gl_Position = vec4(p.xy + norm, 0.0, 1.0);\n v_Uv = p.xy;\n v_Mag = p.z;\n }\n else {\n gl_Position = vec4(p2.xy + norm, 0.0, 1.0);\n v_Mag = p2.z;\n v_Uv = p2.xy;\n }\n gl_Position = worldViewProjection * gl_Position;\n }\n else {\n gl_Position = vec4(100000.0, 100000.0, 100000.0, 1.0);\n }\n}\n\n@end\n\n@export ecgl.vfParticle.renderLines.fragment\n\nuniform vec4 color : [1.0, 1.0, 1.0, 1.0];\nuniform sampler2D gradientTexture;\nuniform sampler2D colorTexture;\n\nvarying float v_Mag;\nvarying vec2 v_Uv;\n\nvoid main()\n{\n gl_FragColor = color;\n #ifdef GRADIENTTEXTURE_ENABLED\n gl_FragColor *= texture2D(gradientTexture, vec2(v_Mag, 0.5));\n#endif\n#ifdef COLORTEXTURE_ENABLED\n gl_FragColor *= texture2D(colorTexture, v_Uv);\n#endif\n}\n\n@end\n";
Shader["import"](vectorFieldParticleGLSL);
function createSpriteCanvas(size) {
  var canvas = document.createElement("canvas");
  canvas.width = canvas.height = size;
  var ctx = canvas.getContext("2d");
  ctx.fillStyle = "#fff";
  ctx.arc(size / 2, size / 2, size / 2, 0, Math.PI * 2);
  ctx.fill();
  return canvas;
}
var VectorFieldParticleSurface = function() {
  this.motionBlurFactor = 0.99;
  this.vectorFieldTexture = new Texture2D({
    type: Texture.FLOAT,
    // minFilter: Texture.NEAREST,
    // magFilter: Texture.NEAREST,
    flipY: false
  });
  this.particleLife = [5, 20];
  this._particleType = "point";
  this._particleSize = 1;
  this.particleColor = [1, 1, 1, 1];
  this.particleSpeedScaling = 1;
  this._thisFrameTexture = null;
  this._particlePass = null;
  this._spawnTexture = null;
  this._particleTexture0 = null;
  this._particleTexture1 = null;
  this._particlePointsMesh = null;
  this._surfaceFrameBuffer = null;
  this._elapsedTime = 0;
  this._scene = null;
  this._camera = null;
  this._lastFrameTexture = null;
  this._supersampling = 1;
  this._downsampleTextures = [];
  this._width = 512;
  this._height = 512;
  this.init();
};
VectorFieldParticleSurface.prototype = {
  constructor: VectorFieldParticleSurface,
  init: function() {
    var parameters = {
      type: Texture.FLOAT,
      minFilter: Texture.NEAREST,
      magFilter: Texture.NEAREST,
      useMipmap: false
    };
    this._spawnTexture = new Texture2D(parameters);
    this._particleTexture0 = new Texture2D(parameters);
    this._particleTexture1 = new Texture2D(parameters);
    this._frameBuffer = new FrameBuffer({
      depthBuffer: false
    });
    this._particlePass = new Pass({
      fragment: Shader.source("ecgl.vfParticle.particle.fragment")
    });
    this._particlePass.setUniform("velocityTexture", this.vectorFieldTexture);
    this._particlePass.setUniform("spawnTexture", this._spawnTexture);
    this._downsamplePass = new Pass({
      fragment: Shader.source("clay.compositor.downsample")
    });
    var particlePointsMesh = new Mesh({
      // Render after last frame full quad
      renderOrder: 10,
      material: new Material({
        shader: new Shader(Shader.source("ecgl.vfParticle.renderPoints.vertex"), Shader.source("ecgl.vfParticle.renderPoints.fragment"))
      }),
      mode: Mesh.POINTS,
      geometry: new Geometry({
        dynamic: true,
        mainAttribute: "texcoord0"
      })
    });
    var particleLinesMesh = new Mesh({
      // Render after last frame full quad
      renderOrder: 10,
      material: new Material({
        shader: new Shader(Shader.source("ecgl.vfParticle.renderLines.vertex"), Shader.source("ecgl.vfParticle.renderLines.fragment"))
      }),
      geometry: new LinesGeometry(),
      culling: false
    });
    var lastFrameFullQuad = new Mesh({
      material: new Material({
        shader: new Shader(Shader.source("ecgl.color.vertex"), Shader.source("ecgl.color.fragment"))
        // DO NOT BLEND Blend will multiply alpha
        // transparent: true
      }),
      geometry: new Plane()
    });
    lastFrameFullQuad.material.enableTexture("diffuseMap");
    this._particlePointsMesh = particlePointsMesh;
    this._particleLinesMesh = particleLinesMesh;
    this._lastFrameFullQuadMesh = lastFrameFullQuad;
    this._camera = new Orthographic();
    this._thisFrameTexture = new Texture2D();
    this._lastFrameTexture = new Texture2D();
  },
  setParticleDensity: function(width, height) {
    var nVertex = width * height;
    var spawnTextureData = new Float32Array(nVertex * 4);
    var off = 0;
    var lifeRange = this.particleLife;
    for (var i = 0; i < width; i++) {
      for (var j = 0; j < height; j++, off++) {
        spawnTextureData[off * 4] = Math.random();
        spawnTextureData[off * 4 + 1] = Math.random();
        spawnTextureData[off * 4 + 2] = Math.random();
        var life = (lifeRange[1] - lifeRange[0]) * Math.random() + lifeRange[0];
        spawnTextureData[off * 4 + 3] = life;
      }
    }
    if (this._particleType === "line") {
      this._setLineGeometry(width, height);
    } else {
      this._setPointsGeometry(width, height);
    }
    this._spawnTexture.width = width;
    this._spawnTexture.height = height;
    this._spawnTexture.pixels = spawnTextureData;
    this._particleTexture0.width = this._particleTexture1.width = width;
    this._particleTexture0.height = this._particleTexture1.height = height;
    this._particlePass.setUniform("textureSize", [width, height]);
  },
  _setPointsGeometry: function(width, height) {
    var nVertex = width * height;
    var geometry = this._particlePointsMesh.geometry;
    var attributes = geometry.attributes;
    attributes.texcoord0.init(nVertex);
    var off = 0;
    for (var i = 0; i < width; i++) {
      for (var j = 0; j < height; j++, off++) {
        attributes.texcoord0.value[off * 2] = i / width;
        attributes.texcoord0.value[off * 2 + 1] = j / height;
      }
    }
    geometry.dirty();
  },
  _setLineGeometry: function(width, height) {
    var nLine = width * height;
    var geometry = this._getParticleMesh().geometry;
    geometry.setLineCount(nLine);
    geometry.resetOffset();
    for (var i = 0; i < width; i++) {
      for (var j = 0; j < height; j++) {
        geometry.addLine([i / width, j / height]);
      }
    }
    geometry.dirty();
  },
  _getParticleMesh: function() {
    return this._particleType === "line" ? this._particleLinesMesh : this._particlePointsMesh;
  },
  update: function(renderer, api, deltaTime, firstFrame) {
    var particleMesh = this._getParticleMesh();
    var frameBuffer = this._frameBuffer;
    var particlePass = this._particlePass;
    if (firstFrame) {
      this._updateDownsampleTextures(renderer, api);
    }
    particleMesh.material.set("size", this._particleSize * this._supersampling);
    particleMesh.material.set("color", this.particleColor);
    particlePass.setUniform("speedScaling", this.particleSpeedScaling);
    frameBuffer.attach(this._particleTexture1);
    particlePass.setUniform("firstFrameTime", firstFrame ? (this.particleLife[1] + this.particleLife[0]) / 2 : 0);
    particlePass.setUniform("particleTexture", this._particleTexture0);
    particlePass.setUniform("deltaTime", deltaTime);
    particlePass.setUniform("elapsedTime", this._elapsedTime);
    particlePass.render(renderer, frameBuffer);
    particleMesh.material.set("particleTexture", this._particleTexture1);
    particleMesh.material.set("prevParticleTexture", this._particleTexture0);
    frameBuffer.attach(this._thisFrameTexture);
    frameBuffer.bind(renderer);
    renderer.gl.clear(renderer.gl.DEPTH_BUFFER_BIT | renderer.gl.COLOR_BUFFER_BIT);
    var lastFrameFullQuad = this._lastFrameFullQuadMesh;
    lastFrameFullQuad.material.set("diffuseMap", this._lastFrameTexture);
    lastFrameFullQuad.material.set("color", [1, 1, 1, this.motionBlurFactor]);
    this._camera.update(true);
    renderer.renderPass([lastFrameFullQuad, particleMesh], this._camera);
    frameBuffer.unbind(renderer);
    this._downsample(renderer);
    this._swapTexture();
    this._elapsedTime += deltaTime;
  },
  _downsample: function(renderer) {
    var downsampleTextures = this._downsampleTextures;
    if (downsampleTextures.length === 0) {
      return;
    }
    var current = 0;
    var sourceTexture = this._thisFrameTexture;
    var targetTexture = downsampleTextures[current];
    while (targetTexture) {
      this._frameBuffer.attach(targetTexture);
      this._downsamplePass.setUniform("texture", sourceTexture);
      this._downsamplePass.setUniform("textureSize", [sourceTexture.width, sourceTexture.height]);
      this._downsamplePass.render(renderer, this._frameBuffer);
      sourceTexture = targetTexture;
      targetTexture = downsampleTextures[++current];
    }
  },
  getSurfaceTexture: function() {
    var downsampleTextures = this._downsampleTextures;
    return downsampleTextures.length > 0 ? downsampleTextures[downsampleTextures.length - 1] : this._lastFrameTexture;
  },
  setRegion: function(region) {
    this._particlePass.setUniform("region", region);
  },
  resize: function(width, height) {
    this._lastFrameTexture.width = width * this._supersampling;
    this._lastFrameTexture.height = height * this._supersampling;
    this._thisFrameTexture.width = width * this._supersampling;
    this._thisFrameTexture.height = height * this._supersampling;
    this._width = width;
    this._height = height;
  },
  setParticleSize: function(size) {
    var particleMesh = this._getParticleMesh();
    if (size <= 2) {
      particleMesh.material.disableTexture("spriteTexture");
      particleMesh.material.transparent = false;
      return;
    }
    if (!this._spriteTexture) {
      this._spriteTexture = new Texture2D();
    }
    if (!this._spriteTexture.image || this._spriteTexture.image.width !== size) {
      this._spriteTexture.image = createSpriteCanvas(size);
      this._spriteTexture.dirty();
    }
    particleMesh.material.transparent = true;
    particleMesh.material.enableTexture("spriteTexture");
    particleMesh.material.set("spriteTexture", this._spriteTexture);
    this._particleSize = size;
  },
  setGradientTexture: function(gradientTexture) {
    var material = this._getParticleMesh().material;
    material[gradientTexture ? "enableTexture" : "disableTexture"]("gradientTexture");
    material.setUniform("gradientTexture", gradientTexture);
  },
  setColorTextureImage: function(colorTextureImg, api) {
    var material = this._getParticleMesh().material;
    material.setTextureImage("colorTexture", colorTextureImg, api, {
      flipY: true
    });
  },
  setParticleType: function(type) {
    this._particleType = type;
  },
  clearFrame: function(renderer) {
    var frameBuffer = this._frameBuffer;
    frameBuffer.attach(this._lastFrameTexture);
    frameBuffer.bind(renderer);
    renderer.gl.clear(renderer.gl.DEPTH_BUFFER_BIT | renderer.gl.COLOR_BUFFER_BIT);
    frameBuffer.unbind(renderer);
  },
  setSupersampling: function(supersampling) {
    this._supersampling = supersampling;
    this.resize(this._width, this._height);
  },
  _updateDownsampleTextures: function(renderer, api) {
    var downsampleTextures = this._downsampleTextures;
    var upScale = Math.max(Math.floor(Math.log(this._supersampling / api.getDevicePixelRatio()) / Math.log(2)), 0);
    var scale = 2;
    var width = this._width * this._supersampling;
    var height = this._height * this._supersampling;
    for (var i = 0; i < upScale; i++) {
      downsampleTextures[i] = downsampleTextures[i] || new Texture2D();
      downsampleTextures[i].width = width / scale;
      downsampleTextures[i].height = height / scale;
      scale *= 2;
    }
    for (; i < downsampleTextures.length; i++) {
      downsampleTextures[i].dispose(renderer);
    }
    downsampleTextures.length = upScale;
  },
  _swapTexture: function() {
    var tmp = this._particleTexture0;
    this._particleTexture0 = this._particleTexture1;
    this._particleTexture1 = tmp;
    var tmp = this._thisFrameTexture;
    this._thisFrameTexture = this._lastFrameTexture;
    this._lastFrameTexture = tmp;
  },
  dispose: function(renderer) {
    renderer.disposeFrameBuffer(this._frameBuffer);
    renderer.disposeTexture(this.vectorFieldTexture);
    renderer.disposeTexture(this._spawnTexture);
    renderer.disposeTexture(this._particleTexture0);
    renderer.disposeTexture(this._particleTexture1);
    renderer.disposeTexture(this._thisFrameTexture);
    renderer.disposeTexture(this._lastFrameTexture);
    renderer.disposeGeometry(this._particleLinesMesh.geometry);
    renderer.disposeGeometry(this._particlePointsMesh.geometry);
    renderer.disposeGeometry(this._lastFrameFullQuadMesh.geometry);
    if (this._spriteTexture) {
      renderer.disposeTexture(this._spriteTexture);
    }
    this._particlePass.dispose(renderer);
    this._downsamplePass.dispose(renderer);
    this._downsampleTextures.forEach(function(texture) {
      texture.dispose(renderer);
    });
  }
};
const FlowGLView = ChartView.extend({
  type: "flowGL",
  __ecgl__: true,
  init: function(ecModel, api) {
    this.viewGL = new ViewGL("orthographic");
    this.groupGL = new graphicGL.Node();
    this.viewGL.add(this.groupGL);
    this._particleSurface = new VectorFieldParticleSurface();
    var planeMesh = new graphicGL.Mesh({
      geometry: new graphicGL.PlaneGeometry(),
      material: new graphicGL.Material({
        shader: new graphicGL.Shader({
          vertex: graphicGL.Shader.source("ecgl.color.vertex"),
          fragment: graphicGL.Shader.source("ecgl.color.fragment")
        }),
        // Must enable blending and multiply alpha.
        // Or premultipliedAlpha will let the alpha useless.
        transparent: true
      })
    });
    planeMesh.material.enableTexture("diffuseMap");
    this.groupGL.add(planeMesh);
    this._planeMesh = planeMesh;
  },
  render: function(seriesModel, ecModel, api) {
    var particleSurface = this._particleSurface;
    particleSurface.setParticleType(seriesModel.get("particleType"));
    particleSurface.setSupersampling(seriesModel.get("supersampling"));
    this._updateData(seriesModel, api);
    this._updateCamera(api.getWidth(), api.getHeight(), api.getDevicePixelRatio());
    var particleDensity = retrieve.firstNotNull(seriesModel.get("particleDensity"), 128);
    particleSurface.setParticleDensity(particleDensity, particleDensity);
    var planeMesh = this._planeMesh;
    var time = +/* @__PURE__ */ new Date();
    var self2 = this;
    var firstFrame = true;
    planeMesh.__percent = 0;
    planeMesh.stopAnimation();
    planeMesh.animate("", {
      loop: true
    }).when(1e5, {
      __percent: 1
    }).during(function() {
      var timeNow = +/* @__PURE__ */ new Date();
      var dTime = Math.min(timeNow - time, 20);
      time = time + dTime;
      if (self2._renderer) {
        particleSurface.update(self2._renderer, api, dTime / 1e3, firstFrame);
        planeMesh.material.set("diffuseMap", particleSurface.getSurfaceTexture());
      }
      firstFrame = false;
    }).start();
    var itemStyleModel = seriesModel.getModel("itemStyle");
    var color = graphicGL.parseColor(itemStyleModel.get("color"));
    color[3] *= retrieve.firstNotNull(itemStyleModel.get("opacity"), 1);
    planeMesh.material.set("color", color);
    particleSurface.setColorTextureImage(seriesModel.get("colorTexture"), api);
    particleSurface.setParticleSize(seriesModel.get("particleSize"));
    particleSurface.particleSpeedScaling = seriesModel.get("particleSpeed");
    particleSurface.motionBlurFactor = 1 - Math.pow(0.1, seriesModel.get("particleTrail"));
  },
  updateTransform: function(seriesModel, ecModel, api) {
    this._updateData(seriesModel, api);
  },
  afterRender: function(globeModel, ecModel, api, layerGL) {
    var renderer = layerGL.renderer;
    this._renderer = renderer;
  },
  _updateData: function(seriesModel, api) {
    var coordSys = seriesModel.coordinateSystem;
    var dims = coordSys.dimensions.map(function(coordDim) {
      return seriesModel.coordDimToDataDim(coordDim)[0];
    });
    var data = seriesModel.getData();
    var xExtent = data.getDataExtent(dims[0]);
    var yExtent = data.getDataExtent(dims[1]);
    var gridWidth = seriesModel.get("gridWidth");
    var gridHeight = seriesModel.get("gridHeight");
    if (gridWidth == null || gridWidth === "auto") {
      var aspect = (xExtent[1] - xExtent[0]) / (yExtent[1] - yExtent[0]);
      gridWidth = Math.round(Math.sqrt(aspect * data.count()));
    }
    if (gridHeight == null || gridHeight === "auto") {
      gridHeight = Math.ceil(data.count() / gridWidth);
    }
    var vectorFieldTexture = this._particleSurface.vectorFieldTexture;
    var pixels = vectorFieldTexture.pixels;
    if (!pixels || pixels.length !== gridHeight * gridWidth * 4) {
      pixels = vectorFieldTexture.pixels = new Float32Array(gridWidth * gridHeight * 4);
    } else {
      for (var i = 0; i < pixels.length; i++) {
        pixels[i] = 0;
      }
    }
    var maxMag = 0;
    var minMag = Infinity;
    var points = new Float32Array(data.count() * 2);
    var offset = 0;
    var bbox = [[Infinity, Infinity], [-Infinity, -Infinity]];
    data.each([dims[0], dims[1], "vx", "vy"], function(x, y, vx, vy) {
      var pt = coordSys.dataToPoint([x, y]);
      points[offset++] = pt[0];
      points[offset++] = pt[1];
      bbox[0][0] = Math.min(pt[0], bbox[0][0]);
      bbox[0][1] = Math.min(pt[1], bbox[0][1]);
      bbox[1][0] = Math.max(pt[0], bbox[1][0]);
      bbox[1][1] = Math.max(pt[1], bbox[1][1]);
      var mag = Math.sqrt(vx * vx + vy * vy);
      maxMag = Math.max(maxMag, mag);
      minMag = Math.min(minMag, mag);
    });
    data.each(["vx", "vy"], function(vx, vy, i2) {
      var xPix = Math.round((points[i2 * 2] - bbox[0][0]) / (bbox[1][0] - bbox[0][0]) * (gridWidth - 1));
      var yPix = gridHeight - 1 - Math.round((points[i2 * 2 + 1] - bbox[0][1]) / (bbox[1][1] - bbox[0][1]) * (gridHeight - 1));
      var idx = (yPix * gridWidth + xPix) * 4;
      pixels[idx] = vx / maxMag * 0.5 + 0.5;
      pixels[idx + 1] = vy / maxMag * 0.5 + 0.5;
      pixels[idx + 3] = 1;
    });
    vectorFieldTexture.width = gridWidth;
    vectorFieldTexture.height = gridHeight;
    if (seriesModel.get("coordinateSystem") === "bmap") {
      this._fillEmptyPixels(vectorFieldTexture);
    }
    vectorFieldTexture.dirty();
    this._updatePlanePosition(bbox[0], bbox[1], seriesModel, api);
    this._updateGradientTexture(data.getVisual("visualMeta"), [minMag, maxMag]);
  },
  // PENDING Use grid mesh ? or delaunay triangulation?
  _fillEmptyPixels: function(texture) {
    var pixels = texture.pixels;
    var width = texture.width;
    var height = texture.height;
    function fetchPixel(x2, y2, rg) {
      x2 = Math.max(Math.min(x2, width - 1), 0);
      y2 = Math.max(Math.min(y2, height - 1), 0);
      var idx2 = (y2 * (width - 1) + x2) * 4;
      if (pixels[idx2 + 3] === 0) {
        return false;
      }
      rg[0] = pixels[idx2];
      rg[1] = pixels[idx2 + 1];
      return true;
    }
    function addPixel(a, b, out) {
      out[0] = a[0] + b[0];
      out[1] = a[1] + b[1];
    }
    var center = [], left = [], right = [], top = [], bottom = [];
    var weight = 0;
    for (var y = 0; y < height; y++) {
      for (var x = 0; x < width; x++) {
        var idx = (y * (width - 1) + x) * 4;
        if (pixels[idx + 3] === 0) {
          weight = center[0] = center[1] = 0;
          if (fetchPixel(x - 1, y, left)) {
            weight++;
            addPixel(left, center, center);
          }
          if (fetchPixel(x + 1, y, right)) {
            weight++;
            addPixel(right, center, center);
          }
          if (fetchPixel(x, y - 1, top)) {
            weight++;
            addPixel(top, center, center);
          }
          if (fetchPixel(x, y + 1, bottom)) {
            weight++;
            addPixel(bottom, center, center);
          }
          center[0] /= weight;
          center[1] /= weight;
          pixels[idx] = center[0];
          pixels[idx + 1] = center[1];
        }
        pixels[idx + 3] = 1;
      }
    }
  },
  _updateGradientTexture: function(visualMeta, magExtent) {
    if (!visualMeta || !visualMeta.length) {
      this._particleSurface.setGradientTexture(null);
      return;
    }
    this._gradientTexture = this._gradientTexture || new graphicGL.Texture2D({
      image: document.createElement("canvas")
    });
    var gradientTexture = this._gradientTexture;
    var canvas = gradientTexture.image;
    canvas.width = 200;
    canvas.height = 1;
    var ctx = canvas.getContext("2d");
    var gradient = ctx.createLinearGradient(0, 0.5, canvas.width, 0.5);
    visualMeta[0].stops.forEach(function(stop) {
      var offset;
      if (magExtent[1] === magExtent[0]) {
        offset = 0;
      } else {
        offset = stop.value / magExtent[1];
        offset = Math.min(Math.max(offset, 0), 1);
      }
      gradient.addColorStop(offset, stop.color);
    });
    ctx.fillStyle = gradient;
    ctx.fillRect(0, 0, canvas.width, canvas.height);
    gradientTexture.dirty();
    this._particleSurface.setGradientTexture(this._gradientTexture);
  },
  _updatePlanePosition: function(leftTop, rightBottom, seriesModel, api) {
    var limitedResult = this._limitInViewportAndFullFill(leftTop, rightBottom, seriesModel, api);
    leftTop = limitedResult.leftTop;
    rightBottom = limitedResult.rightBottom;
    this._particleSurface.setRegion(limitedResult.region);
    this._planeMesh.position.set((leftTop[0] + rightBottom[0]) / 2, api.getHeight() - (leftTop[1] + rightBottom[1]) / 2, 0);
    var width = rightBottom[0] - leftTop[0];
    var height = rightBottom[1] - leftTop[1];
    this._planeMesh.scale.set(width / 2, height / 2, 1);
    this._particleSurface.resize(Math.max(Math.min(width, 2048), 1), Math.max(Math.min(height, 2048), 1));
    if (this._renderer) {
      this._particleSurface.clearFrame(this._renderer);
    }
  },
  _limitInViewportAndFullFill: function(leftTop, rightBottom, seriesModel, api) {
    var newLeftTop = [Math.max(leftTop[0], 0), Math.max(leftTop[1], 0)];
    var newRightBottom = [Math.min(rightBottom[0], api.getWidth()), Math.min(rightBottom[1], api.getHeight())];
    if (seriesModel.get("coordinateSystem") === "bmap") {
      var lngRange = seriesModel.getData().getDataExtent(seriesModel.coordDimToDataDim("lng")[0]);
      var isContinuous = Math.floor(lngRange[1] - lngRange[0]) >= 359;
      if (isContinuous) {
        if (newLeftTop[0] > 0) {
          newLeftTop[0] = 0;
        }
        if (newRightBottom[0] < api.getWidth()) {
          newRightBottom[0] = api.getWidth();
        }
      }
    }
    var width = rightBottom[0] - leftTop[0];
    var height = rightBottom[1] - leftTop[1];
    var newWidth = newRightBottom[0] - newLeftTop[0];
    var newHeight = newRightBottom[1] - newLeftTop[1];
    var region = [(newLeftTop[0] - leftTop[0]) / width, 1 - newHeight / height - (newLeftTop[1] - leftTop[1]) / height, newWidth / width, newHeight / height];
    return {
      leftTop: newLeftTop,
      rightBottom: newRightBottom,
      region
    };
  },
  _updateCamera: function(width, height, dpr) {
    this.viewGL.setViewport(0, 0, width, height, dpr);
    var camera2 = this.viewGL.camera;
    camera2.left = camera2.bottom = 0;
    camera2.top = height;
    camera2.right = width;
    camera2.near = 0;
    camera2.far = 100;
    camera2.position.z = 10;
  },
  remove: function() {
    this._planeMesh.stopAnimation();
    this.groupGL.removeAll();
  },
  dispose: function() {
    if (this._renderer) {
      this._particleSurface.dispose(this._renderer);
    }
    this.groupGL.removeAll();
  }
});
function install$1(registers) {
  registers.registerChartView(FlowGLView);
  registers.registerSeriesModel(FlowGLSeries);
}
use(install$1);
var LinesGLSeries = SeriesModel.extend({
  type: "series.linesGL",
  dependencies: ["grid", "geo"],
  visualStyleAccessPath: "lineStyle",
  visualDrawType: "stroke",
  streamEnabled: true,
  init: function(option) {
    var result = this._processFlatCoordsArray(option.data);
    this._flatCoords = result.flatCoords;
    this._flatCoordsOffset = result.flatCoordsOffset;
    if (result.flatCoords) {
      option.data = new Float32Array(result.count);
    }
    LinesGLSeries.superApply(this, "init", arguments);
  },
  mergeOption: function(option) {
    var result = this._processFlatCoordsArray(option.data);
    this._flatCoords = result.flatCoords;
    this._flatCoordsOffset = result.flatCoordsOffset;
    if (result.flatCoords) {
      option.data = new Float32Array(result.count);
    }
    LinesGLSeries.superApply(this, "mergeOption", arguments);
  },
  appendData: function(params) {
    var result = this._processFlatCoordsArray(params.data);
    if (result.flatCoords) {
      if (!this._flatCoords) {
        this._flatCoords = result.flatCoords;
        this._flatCoordsOffset = result.flatCoordsOffset;
      } else {
        this._flatCoords = concatArray(this._flatCoords, result.flatCoords);
        this._flatCoordsOffset = concatArray(this._flatCoordsOffset, result.flatCoordsOffset);
      }
      params.data = new Float32Array(result.count);
    }
    this.getRawData().appendData(params.data);
  },
  _getCoordsFromItemModel: function(idx) {
    var itemModel = this.getData().getItemModel(idx);
    var coords = itemModel.option instanceof Array ? itemModel.option : itemModel.getShallow("coords");
    return coords;
  },
  getLineCoordsCount: function(idx) {
    if (this._flatCoordsOffset) {
      return this._flatCoordsOffset[idx * 2 + 1];
    } else {
      return this._getCoordsFromItemModel(idx).length;
    }
  },
  getLineCoords: function(idx, out) {
    if (this._flatCoordsOffset) {
      var offset = this._flatCoordsOffset[idx * 2];
      var len = this._flatCoordsOffset[idx * 2 + 1];
      for (var i = 0; i < len; i++) {
        out[i] = out[i] || [];
        out[i][0] = this._flatCoords[offset + i * 2];
        out[i][1] = this._flatCoords[offset + i * 2 + 1];
      }
      return len;
    } else {
      var coords = this._getCoordsFromItemModel(idx);
      for (var i = 0; i < coords.length; i++) {
        out[i] = out[i] || [];
        out[i][0] = coords[i][0];
        out[i][1] = coords[i][1];
      }
      return coords.length;
    }
  },
  _processFlatCoordsArray: function(data) {
    var startOffset = 0;
    if (this._flatCoords) {
      startOffset = this._flatCoords.length;
    }
    if (typeof data[0] === "number") {
      var len = data.length;
      var coordsOffsetAndLenStorage = new Uint32Array(len);
      var coordsStorage = new Float64Array(len);
      var coordsCursor = 0;
      var offsetCursor = 0;
      var dataCount = 0;
      for (var i = 0; i < len; ) {
        dataCount++;
        var count = data[i++];
        coordsOffsetAndLenStorage[offsetCursor++] = coordsCursor + startOffset;
        coordsOffsetAndLenStorage[offsetCursor++] = count;
        for (var k = 0; k < count; k++) {
          var x = data[i++];
          var y = data[i++];
          coordsStorage[coordsCursor++] = x;
          coordsStorage[coordsCursor++] = y;
        }
      }
      return {
        flatCoordsOffset: new Uint32Array(coordsOffsetAndLenStorage.buffer, 0, offsetCursor),
        flatCoords: coordsStorage,
        count: dataCount
      };
    }
    return {
      flatCoordsOffset: null,
      flatCoords: null,
      count: data.length
    };
  },
  getInitialData: function(option, ecModel) {
    var lineData = new SeriesData(["value"], this);
    lineData.hasItemOption = false;
    lineData.initData(option.data, [], function(dataItem, dimName, dataIndex, dimIndex) {
      if (dataItem instanceof Array) {
        return NaN;
      } else {
        lineData.hasItemOption = true;
        var value = dataItem.value;
        if (value != null) {
          return value instanceof Array ? value[dimIndex] : value;
        }
      }
    });
    return lineData;
  },
  defaultOption: {
    coordinateSystem: "geo",
    zlevel: 10,
    progressive: 1e4,
    progressiveThreshold: 5e4,
    // Cartesian coordinate system
    // xAxisIndex: 0,
    // yAxisIndex: 0,
    // Geo coordinate system
    // geoIndex: 0,
    // Support source-over, lighter
    blendMode: "source-over",
    lineStyle: {
      opacity: 0.8
    },
    postEffect: {
      enable: false,
      colorCorrection: {
        exposure: 0,
        brightness: 0,
        contrast: 1,
        saturation: 1,
        enable: true
      }
    }
  }
});
const LinesGLView = ChartView.extend({
  type: "linesGL",
  __ecgl__: true,
  init: function(ecModel, api) {
    this.groupGL = new graphicGL.Node();
    this.viewGL = new ViewGL("orthographic");
    this.viewGL.add(this.groupGL);
    this._glViewHelper = new GLViewHelper(this.viewGL);
    this._nativeLinesShader = graphicGL.createShader("ecgl.lines3D");
    this._meshLinesShader = graphicGL.createShader("ecgl.meshLines3D");
    this._linesMeshes = [];
    this._currentStep = 0;
  },
  render: function(seriesModel, ecModel, api) {
    this.groupGL.removeAll();
    this._glViewHelper.reset(seriesModel, api);
    var linesMesh = this._linesMeshes[0];
    if (!linesMesh) {
      linesMesh = this._linesMeshes[0] = this._createLinesMesh(seriesModel);
    }
    this._linesMeshes.length = 1;
    this.groupGL.add(linesMesh);
    this._updateLinesMesh(seriesModel, linesMesh, 0, seriesModel.getData().count());
    this.viewGL.setPostEffect(seriesModel.getModel("postEffect"), api);
  },
  incrementalPrepareRender: function(seriesModel, ecModel, api) {
    this.groupGL.removeAll();
    this._glViewHelper.reset(seriesModel, api);
    this._currentStep = 0;
    this.viewGL.setPostEffect(seriesModel.getModel("postEffect"), api);
  },
  incrementalRender: function(params, seriesModel, ecModel, api) {
    var linesMesh = this._linesMeshes[this._currentStep];
    if (!linesMesh) {
      linesMesh = this._createLinesMesh(seriesModel);
      this._linesMeshes[this._currentStep] = linesMesh;
    }
    this._updateLinesMesh(seriesModel, linesMesh, params.start, params.end);
    this.groupGL.add(linesMesh);
    api.getZr().refresh();
    this._currentStep++;
  },
  updateTransform: function(seriesModel, ecModel, api) {
    if (seriesModel.coordinateSystem.getRoamTransform) {
      this._glViewHelper.updateTransform(seriesModel, api);
    }
  },
  _createLinesMesh: function(seriesModel) {
    var linesMesh = new graphicGL.Mesh({
      $ignorePicking: true,
      material: new graphicGL.Material({
        shader: graphicGL.createShader("ecgl.lines3D"),
        transparent: true,
        depthMask: false,
        depthTest: false
      }),
      geometry: new LinesGeometry$1({
        segmentScale: 10,
        useNativeLine: true,
        dynamic: false
      }),
      mode: graphicGL.Mesh.LINES,
      culling: false
    });
    return linesMesh;
  },
  _updateLinesMesh: function(seriesModel, linesMesh, start, end) {
    var data = seriesModel.getData();
    linesMesh.material.blend = seriesModel.get("blendMode") === "lighter" ? graphicGL.additiveBlend : null;
    var curveness = seriesModel.get("lineStyle.curveness") || 0;
    var isPolyline = seriesModel.get("polyline");
    var geometry = linesMesh.geometry;
    var coordSys = seriesModel.coordinateSystem;
    var lineWidth = retrieve.firstNotNull(seriesModel.get("lineStyle.width"), 1);
    if (lineWidth > 1) {
      if (linesMesh.material.shader !== this._meshLinesShader) {
        linesMesh.material.attachShader(this._meshLinesShader);
      }
      linesMesh.mode = graphicGL.Mesh.TRIANGLES;
    } else {
      if (linesMesh.material.shader !== this._nativeLinesShader) {
        linesMesh.material.attachShader(this._nativeLinesShader);
      }
      linesMesh.mode = graphicGL.Mesh.LINES;
    }
    start = start || 0;
    end = end || data.count();
    geometry.resetOffset();
    var vertexCount = 0;
    var triangleCount = 0;
    var p02 = [];
    var p12 = [];
    var p22 = [];
    var p3 = [];
    var lineCoords = [];
    var t = 0.3;
    var t2 = 0.7;
    function updateBezierControlPoints() {
      p12[0] = p02[0] * t2 + p3[0] * t - (p02[1] - p3[1]) * curveness;
      p12[1] = p02[1] * t2 + p3[1] * t - (p3[0] - p02[0]) * curveness;
      p22[0] = p02[0] * t + p3[0] * t2 - (p02[1] - p3[1]) * curveness;
      p22[1] = p02[1] * t + p3[1] * t2 - (p3[0] - p02[0]) * curveness;
    }
    if (isPolyline || curveness !== 0) {
      for (var idx = start; idx < end; idx++) {
        if (isPolyline) {
          var count = seriesModel.getLineCoordsCount(idx);
          vertexCount += geometry.getPolylineVertexCount(count);
          triangleCount += geometry.getPolylineTriangleCount(count);
        } else {
          seriesModel.getLineCoords(idx, lineCoords);
          this._glViewHelper.dataToPoint(coordSys, lineCoords[0], p02);
          this._glViewHelper.dataToPoint(coordSys, lineCoords[1], p3);
          updateBezierControlPoints();
          vertexCount += geometry.getCubicCurveVertexCount(p02, p12, p22, p3);
          triangleCount += geometry.getCubicCurveTriangleCount(p02, p12, p22, p3);
        }
      }
    } else {
      var lineCount = end - start;
      vertexCount += lineCount * geometry.getLineVertexCount();
      triangleCount += lineCount * geometry.getLineVertexCount();
    }
    geometry.setVertexCount(vertexCount);
    geometry.setTriangleCount(triangleCount);
    var dataIndex = start;
    var colorArr = [];
    for (var idx = start; idx < end; idx++) {
      graphicGL.parseColor(getItemVisualColor(data, dataIndex), colorArr);
      var opacity = retrieve.firstNotNull(getItemVisualOpacity(data, dataIndex), 1);
      colorArr[3] *= opacity;
      var count = seriesModel.getLineCoords(idx, lineCoords);
      for (var k = 0; k < count; k++) {
        this._glViewHelper.dataToPoint(coordSys, lineCoords[k], lineCoords[k]);
      }
      if (isPolyline) {
        geometry.addPolyline(lineCoords, colorArr, lineWidth, 0, count);
      } else if (curveness !== 0) {
        p02 = lineCoords[0];
        p3 = lineCoords[1];
        updateBezierControlPoints();
        geometry.addCubicCurve(p02, p12, p22, p3, colorArr, lineWidth);
      } else {
        geometry.addPolyline(lineCoords, colorArr, lineWidth, 0, 2);
      }
      dataIndex++;
    }
  },
  dispose: function() {
    this.groupGL.removeAll();
  },
  remove: function() {
    this.groupGL.removeAll();
  }
});
function install(registers) {
  registers.registerChartView(LinesGLView);
  registers.registerSeriesModel(LinesGLSeries);
}
use(install);
//# sourceMappingURL=index-DUQY-caJ.js.map