75 lines
3.1 KiB
Plaintext
75 lines
3.1 KiB
Plaintext
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Shader "FrameBufferFetch"
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{
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SubShader
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{
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Tags { "RenderType"="Opaque" "RenderPipeline" = "UniversalPipeline"}
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ZWrite Off Cull Off
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Pass
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{
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Name "FrameBufferFetch"
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HLSLPROGRAM
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#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
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#include "Packages/com.unity.render-pipelines.core/Runtime/Utilities/Blit.hlsl"
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#pragma vertex Vert
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#pragma fragment Frag
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// Declares the framebuffer input as a texture 2d containing half.
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FRAMEBUFFER_INPUT_HALF(0);
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// Out frag function takes as input a struct that contains the screen space coordinate we are going to use to sample our texture. It also writes to SV_Target0, this has to match the index set in the UseTextureFragment(sourceTexture, 0, …) we defined in our render pass script.
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float4 Frag(Varyings input) : SV_Target0
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{
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// this is needed so we account XR platform differences in how they handle texture arrays
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UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(input);
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// read the current pixel from the framebuffer
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float2 uv = input.texcoord.xy;
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// read previous subpasses directly from the framebuffer.
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half4 color = LOAD_FRAMEBUFFER_INPUT(0, input.positionCS.xy);
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// Modify the sampled color
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return half4(0,0,1,1) * color;
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}
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ENDHLSL
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}
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Tags { "RenderType"="Opaque" "RenderPipeline" = "UniversalPipeline"}
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ZWrite Off Cull Off
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Pass
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{
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Name "FrameBufferFetchMS"
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HLSLPROGRAM
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#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
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#include "Packages/com.unity.render-pipelines.core/Runtime/Utilities/Blit.hlsl"
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#pragma vertex Vert
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#pragma fragment Frag
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#pragma target 4.5
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#pragma require msaatex
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// Declares the framebuffer input as a texture 2d containing half.
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FRAMEBUFFER_INPUT_HALF_MS(0);
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// Out frag function takes as input a struct that contains the screen space coordinate we are going to use to sample our texture. It also writes to SV_Target0, this has to match the index set in the UseTextureFragment(sourceTexture, 0, …) we defined in our render pass script.
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float4 Frag(Varyings input, uint sampleID : SV_SampleIndex) : SV_Target0
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{
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// this is needed so we account XR platform differences in how they handle texture arrays
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UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(input);
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// read the current pixel from the framebuffer
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float2 uv = input.texcoord.xy;
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// read previous subpasses directly from the framebuffer.
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half4 color = LOAD_FRAMEBUFFER_INPUT_MS(0, sampleID, input.positionCS.xy);
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// Modify the sampled color
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return half4(0,0,1,1) * color;
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}
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ENDHLSL
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}
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}
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}
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