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37 lines
1.3 KiB
37 lines
1.3 KiB
#pragma warning(disable : 3568) // Warning: Unknown pragma
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#pragma kernel KVectorscopeGather
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#pragma kernel KVectorscopeClear
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#pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
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#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Color.hlsl"
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#include "Packages/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/ShaderVariables.hlsl"
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// Inputs
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RWStructuredBuffer<uint> _VectorscopeBuffer;
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Texture2D<float4> _Source;
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uint _BufferSize;
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#define GROUP_SIZE_X 16
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#define GROUP_SIZE_Y 16
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[numthreads(GROUP_SIZE_X, GROUP_SIZE_Y, 1)]
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void KVectorscopeGather(uint2 dispatchThreadId : SV_DispatchThreadID)
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{
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if (dispatchThreadId.x >= uint(_ScreenSize.x) || dispatchThreadId.y >= uint(_ScreenSize.y))
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return;
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const float3 yuv = RGBToYCoCg(LinearToSRGB(saturate(_Source[dispatchThreadId].xyz)));
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const uint2 uv = uint2(
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(uint)floor(yuv.y * _BufferSize),
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(uint)floor(yuv.z * _BufferSize)
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);
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InterlockedAdd(_VectorscopeBuffer[uv.y * _BufferSize + uv.x], 1u);
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}
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[numthreads(GROUP_SIZE_X, GROUP_SIZE_Y, 1)]
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void KVectorscopeClear(uint2 dispatchThreadId : SV_DispatchThreadID)
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{
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if (dispatchThreadId.x < _BufferSize && dispatchThreadId.y < _BufferSize)
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_VectorscopeBuffer[dispatchThreadId.y * _BufferSize + dispatchThreadId.x] = 0u;
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}
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