196 lines
7.5 KiB
C#
196 lines
7.5 KiB
C#
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#if VISUAL_EFFECT_GRAPH_0_0_1_OR_NEWER
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using UnityEngine.Rendering;
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using UnityEngine.Rendering.Universal;
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namespace UnityEngine.VFX.Utility
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{
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/// <summary>
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/// Camera parameter binding helper class.
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/// </summary>
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[VFXBinder("URP/URP Camera")]
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public class URPCameraBinder : VFXBinderBase
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{
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/// <summary>
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/// Camera URP additional data.
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/// </summary>
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public UniversalAdditionalCameraData AdditionalData;
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Camera m_Camera;
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[VFXPropertyBinding("UnityEditor.VFX.CameraType"), SerializeField]
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ExposedProperty CameraProperty = "Camera";
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ExposedProperty m_Position;
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ExposedProperty m_Angles;
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ExposedProperty m_Scale;
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ExposedProperty m_FieldOfView;
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ExposedProperty m_NearPlane;
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ExposedProperty m_FarPlane;
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ExposedProperty m_AspectRatio;
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ExposedProperty m_Dimensions;
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ExposedProperty m_ScaledDimensions;
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ExposedProperty m_DepthBuffer;
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ExposedProperty m_ColorBuffer;
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ExposedProperty m_Orthographic;
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ExposedProperty m_OrthographicSize;
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ExposedProperty m_LensShift;
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/// <summary>
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/// Set a camera property.
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/// </summary>
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/// <param name="name">Property name.</param>
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public void SetCameraProperty(string name)
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{
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CameraProperty = name;
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UpdateSubProperties();
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}
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void UpdateSubProperties()
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{
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// Get Camera component from URP additional data
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if (AdditionalData != null)
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{
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m_Camera = AdditionalData.GetComponent<Camera>();
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}
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// Update VFX Sub Properties
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m_Position = CameraProperty + "_transform_position";
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m_Angles = CameraProperty + "_transform_angles";
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m_Scale = CameraProperty + "_transform_scale";
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m_Orthographic = CameraProperty + "_orthographic";
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m_FieldOfView = CameraProperty + "_fieldOfView";
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m_NearPlane = CameraProperty + "_nearPlane";
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m_FarPlane = CameraProperty + "_farPlane";
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m_OrthographicSize = CameraProperty + "_orthographicSize";
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m_AspectRatio = CameraProperty + "_aspectRatio";
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m_Dimensions = CameraProperty + "_pixelDimensions";
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m_LensShift = CameraProperty + "_lensShift";
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m_DepthBuffer = CameraProperty + "_depthBuffer";
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m_ColorBuffer = CameraProperty + "_colorBuffer";
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m_ScaledDimensions = CameraProperty + "_scaledPixelDimensions";
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}
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static void RequestHistoryAccess(IPerFrameHistoryAccessTracker access)
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{
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access?.RequestAccess<RawColorHistory>();
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access?.RequestAccess<RawDepthHistory>();
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}
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/// <summary>
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/// OnEnable implementation.
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/// </summary>
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protected override void OnEnable()
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{
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base.OnEnable();
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if (AdditionalData != null)
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AdditionalData.history.OnGatherHistoryRequests += RequestHistoryAccess;
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UpdateSubProperties();
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}
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/// <summary>
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/// OnDisable implementation.
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/// </summary>
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protected override void OnDisable()
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{
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base.OnDisable();
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if (AdditionalData != null)
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AdditionalData.history.OnGatherHistoryRequests -= RequestHistoryAccess;
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}
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private void OnValidate()
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{
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UpdateSubProperties();
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if (AdditionalData != null)
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AdditionalData.history.OnGatherHistoryRequests += RequestHistoryAccess;
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}
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/// <summary>
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/// Returns true if the Visual Effect and the configuration of the binder are valid to perform the binding.
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/// </summary>
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/// <param name="component">Component to be tested.</param>
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/// <returns>True if the Visual Effect and the configuration of the binder are valid to perform the binding.</returns>
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public override bool IsValid(VisualEffect component)
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{
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return AdditionalData != null
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&& m_Camera != null
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&& component.HasVector3(m_Position)
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&& component.HasVector3(m_Angles)
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&& component.HasVector3(m_Scale)
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&& component.HasBool(m_Orthographic)
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&& component.HasFloat(m_FieldOfView)
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&& component.HasFloat(m_NearPlane)
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&& component.HasFloat(m_FarPlane)
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&& component.HasFloat(m_OrthographicSize)
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&& component.HasFloat(m_AspectRatio)
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&& component.HasVector2(m_Dimensions)
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&& component.HasVector2(m_LensShift)
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&& component.HasTexture(m_DepthBuffer)
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&& component.HasTexture(m_ColorBuffer)
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&& component.HasVector2(m_ScaledDimensions);
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}
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/// <summary>
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/// Update bindings for a visual effect.
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/// </summary>
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/// <param name="component">Component to update.</param>
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public override void UpdateBinding(VisualEffect component)
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{
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var asset = UniversalRenderPipeline.asset;
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if (AdditionalData == null || asset == null)
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return;
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var targetSpace = component.visualEffectAsset.GetExposedSpace(m_Position);
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Matrix4x4 readTransform;
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if (targetSpace == VFXSpace.Local)
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{
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readTransform = component.transform.worldToLocalMatrix * AdditionalData.transform.localToWorldMatrix;
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}
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else
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{
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readTransform = AdditionalData.transform.localToWorldMatrix;
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}
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component.SetVector3(m_Position, readTransform.GetPosition());
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component.SetVector3(m_Angles, readTransform.rotation.eulerAngles);
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component.SetVector3(m_Scale, readTransform.lossyScale);
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component.SetBool(m_Orthographic, m_Camera.orthographic);
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component.SetFloat(m_OrthographicSize, m_Camera.orthographicSize);
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// While field of View is set in degrees for the camera, it is expected in radians in VFX
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component.SetFloat(m_FieldOfView, Mathf.Deg2Rad * m_Camera.fieldOfView);
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component.SetFloat(m_NearPlane, m_Camera.nearClipPlane);
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component.SetFloat(m_FarPlane, m_Camera.farClipPlane);
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component.SetVector2(m_LensShift, m_Camera.lensShift);
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component.SetFloat(m_AspectRatio, m_Camera.aspect);
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var cameraSize = new Vector2(m_Camera.pixelWidth, m_Camera.pixelHeight);
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component.SetVector2(m_Dimensions, cameraSize);
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var scaledSize = new Vector2(m_Camera.scaledPixelWidth, m_Camera.scaledPixelHeight) * asset.renderScale;
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component.SetVector2(m_ScaledDimensions, scaledSize);
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var depth = AdditionalData.history.GetHistoryForRead<RawDepthHistory>()?.GetCurrentTexture();
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var color = AdditionalData.history.GetHistoryForRead<RawColorHistory>()?.GetCurrentTexture();
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if (depth != null)
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component.SetTexture(m_DepthBuffer, depth);
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if (color != null)
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component.SetTexture(m_ColorBuffer, color);
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}
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/// <summary>
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/// To string implementation.
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/// </summary>
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/// <returns>String containing the binder information.</returns>
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public override string ToString()
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{
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return string.Format($"URP Camera : '{(AdditionalData == null ? "null" : AdditionalData.gameObject.name)}' -> {CameraProperty}");
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}
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}
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}
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#endif
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