77 lines
2.0 KiB
Plaintext
77 lines
2.0 KiB
Plaintext
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//
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// This is a modified version of the SSAO renderer from Microsoft's MiniEngine
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// library. The copyright notice from the original version is included below.
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//
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// The original source code of MiniEngine is available on GitHub.
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// https://github.com/Microsoft/DirectX-Graphics-Samples
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//
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//
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// Copyright (c) Microsoft. All rights reserved.
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// This code is licensed under the MIT License (MIT).
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// THIS CODE IS PROVIDED *AS IS* WITHOUT WARRANTY OF
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// ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY
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// IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR
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// PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.
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//
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// Developed by Minigraph
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//
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// Author: James Stanard
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//
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#pragma warning(disable : 3568)
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#pragma exclude_renderers gles gles3 d3d11_9x
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#pragma kernel MultiScaleVODownsample2 main=MultiScaleVODownsample2
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#pragma kernel MultiScaleVODownsample2_MSAA main=MultiScaleVODownsample2_MSAA MSAA
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#include "Packages/com.unity.postprocessing/PostProcessing/Shaders/StdLib.hlsl"
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#ifdef MSAA
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Texture2D<float2> DS4x;
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RWTexture2D<float2> DS8x;
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RWTexture2DArray<float2> DS8xAtlas;
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RWTexture2D<float2> DS16x;
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RWTexture2DArray<float2> DS16xAtlas;
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#else
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Texture2D<float> DS4x;
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RWTexture2D<float> DS8x;
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RWTexture2DArray<float> DS8xAtlas;
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RWTexture2D<float> DS16x;
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RWTexture2DArray<float> DS16xAtlas;
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#endif
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#ifdef DISABLE_COMPUTE_SHADERS
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TRIVIAL_COMPUTE_KERNEL(main)
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#else
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[numthreads(8, 8, 1)]
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void main(uint3 Gid : SV_GroupID, uint GI : SV_GroupIndex, uint3 GTid : SV_GroupThreadID, uint3 DTid : SV_DispatchThreadID)
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{
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#ifdef MSAA
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float2 m1 = DS4x[DTid.xy << 1];
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#else
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float m1 = DS4x[DTid.xy << 1];
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#endif
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uint2 st = DTid.xy;
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uint2 stAtlas = st >> 2;
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uint stSlice = ((st.x & 3) | (st.y << 2)) & 15;
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DS8x[st] = m1;
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DS8xAtlas[uint3(stAtlas, stSlice)] = m1;
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if ((GI & 011) == 0)
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{
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uint2 st = DTid.xy >> 1;
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uint2 stAtlas = st >> 2;
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uint stSlice = ((st.x & 3) | (st.y << 2)) & 15;
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DS16x[st] = m1;
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DS16xAtlas[uint3(stAtlas, stSlice)] = m1;
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}
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}
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#endif // DISABLE_COMPUTE_SHADERS
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