105 lines
15 KiB
Plaintext
105 lines
15 KiB
Plaintext
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FilterSpatially A<> FilterSpatially A<> FilterSpatially A<> SpatialFiltering.computeZ #pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal glcore ps5
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#pragma kernel FilterSpatially
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#include "Common.hlsl"
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#include "PatchUtil.hlsl"
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#include "RingBuffer.hlsl"
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#include "Packages/com.unity.render-pipelines.core/Runtime/Sampling/QuasiRandom.hlsl"
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StructuredBuffer<uint> _RingConfigBuffer;
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StructuredBuffer<SphericalHarmonics::RGBL1> _InputPatchIrradiances;
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StructuredBuffer<PatchUtil::PatchGeometry> _PatchGeometries;
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RWStructuredBuffer<SphericalHarmonics::RGBL1> _OutputPatchIrradiances;
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StructuredBuffer<uint> _CellPatchIndices;
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StructuredBuffer<int3> _CascadeOffsets;
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uint _FrameIdx;
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float _VoxelMinSize;
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uint _CascadeCount;
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uint _GridSize;
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uint _SampleCount;
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uint _RingConfigOffset;
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float _Radius;
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float3 _GridTargetPos;
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[numthreads(64, 1, 1)]
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void FilterSpatially(uint patchIdx : SV_DispatchThreadID)
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{
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if (RingBuffer::IsPositionUnused(_RingConfigBuffer, _RingConfigOffset, patchIdx))
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return;
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const PatchUtil::PatchGeometry patchGeo = _PatchGeometries[patchIdx];
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QrngKronecker rng;
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rng.Init(uint2(patchIdx, 0), _FrameIdx * _SampleCount);
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SphericalHarmonics::RGBL1 patchIrradianceSum = _InputPatchIrradiances[patchIdx];
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float weightSum = 1.0f;
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float3 up;
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float3 right;
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OrthoBasisFromVector(patchGeo.normal, up, right);
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const int cascadeResolution = PatchUtil::ResolveCascadeIndex(_GridTargetPos, patchGeo.position, _GridSize, _CascadeCount, _VoxelMinSize);
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const uint cascadeIdx = cascadeResolution != -1 ? cascadeResolution : _CascadeCount - 1;
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for (uint sampleIdx = 0; sampleIdx < _SampleCount; ++sampleIdx)
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{
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const float2 jitter = float2(rng.GetFloat(0), rng.GetFloat(1)) * 2.0f - 1.0f;
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const float3 displacement = (up * jitter.x + right * jitter.y) * PatchUtil::GetVoxelSize(_VoxelMinSize, cascadeIdx) * _Radius;
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SphericalHarmonics::RGBL1 irradiance;
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bool result = PatchUtil::ReadHemisphericalIrradiance(
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_InputPatchIrradiances, _CellPatchIndices, _GridSize, _CascadeOffsets, _GridTargetPos, _CascadeCount, _VoxelMinSize,
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patchGeo.position + displacement, patchGeo.normal, irradiance);
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if (result)
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{
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float weight = 1.0f - length(jitter) * INV_SQRT2;
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weightSum += weight;
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patchIrradianceSum.l0 += irradiance.l0 * weight;
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patchIrradianceSum.l1s[0] += irradiance.l1s[0] * weight;
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patchIrradianceSum.l1s[1] += irradiance.l1s[1] * weight;
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patchIrradianceSum.l1s[2] += irradiance.l1s[2] * weight;
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}
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rng.NextSample();
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}
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SphericalHarmonics::RGBL1 output;
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output.l0 = patchIrradianceSum.l0 / weightSum;
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output.l1s[0] = patchIrradianceSum.l1s[0] / weightSum;
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output.l1s[1] = patchIrradianceSum.l1s[1] / weightSum;
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output.l1s[2] = patchIrradianceSum.l1s[2] / weightSum;
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_OutputPatchIrradiances[patchIdx] = output;
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}
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Packages/com.unity.render-pipelines.universal/Runtime/RendererFeatures/SurfaceCacheGI/SurfaceCacheCore/SpatialFiltering.compute FilterSpatially <10><> <00>N<1A><<3C><>Џ@m<>"З<>
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