SSSAreaRayTraceResources PrepareSSSAreaRayTraceResources(HDCamera hdCamera, RTHandle directionBuffer, RTHandle rayLengthBuffer,
RTHandle intermediateBufferRGBA0, RTHandle intermediateBufferRGBA1, RTHandle intermediateBufferRG0,
RTHandle shadowHistoryArray, RTHandle analyticHistoryArray)
{
SSSAreaRayTraceResources sssartResources = new SSSAreaRayTraceResources();
// Input Buffers
sssartResources.depthStencilBuffer = m_SharedRTManager.GetDepthStencilBuffer();
sssartResources.normalBuffer = m_SharedRTManager.GetNormalBuffer();
sssartResources.lightData = m_LightLoopLightData.lightData;
if (hdCamera.frameSettings.litShaderMode == LitShaderMode.Deferred)
{
sssartResources.gbuffer0 = m_GbufferManager.GetBuffer(0);
sssartResources.gbuffer1 = m_GbufferManager.GetBuffer(1);
sssartResources.gbuffer2 = m_GbufferManager.GetBuffer(2);
sssartResources.gbuffer3 = m_GbufferManager.GetBuffer(3);
}
else
{
sssartResources.gbuffer0 = TextureXR.GetBlackTexture();
sssartResources.gbuffer1 = TextureXR.GetBlackTexture();
sssartResources.gbuffer2 = TextureXR.GetBlackTexture();
sssartResources.gbuffer3 = TextureXR.GetBlackTexture();
}
sssartResources.cookieAtlasTexture = m_TextureCaches.lightCookieManager.atlasTexture;
sssartResources.shadowHistoryArray = shadowHistoryArray;
sssartResources.analyticHistoryArray = analyticHistoryArray;
// Intermediate buffers
sssartResources.directionBuffer = directionBuffer;
sssartResources.rayLengthBuffer = rayLengthBuffer;
sssartResources.intermediateBufferRGBA0 = intermediateBufferRGBA0;
sssartResources.intermediateBufferRGBA1 = intermediateBufferRGBA1;
sssartResources.intermediateBufferRG0 = intermediateBufferRG0;
// Debug textures
RayCountManager rayCountManager = GetRayCountManager();
sssartResources.rayCountTexture = rayCountManager.GetRayCountTexture();
// Output buffers
sssartResources.screenSpaceShadowTextureArray = m_ScreenSpaceShadowTextureArray;
return(sssartResources);
}
static void ExecuteSSSAreaRayTrace(CommandBuffer cmd, SSSAreaRayTraceParameters sssartParams, SSSAreaRayTraceResources sssartResources)
{
// Inject the ray-tracing sampling data
BlueNoise.BindDitheredTextureSet(cmd, sssartParams.ditheredTextureSet);
// Evaluate the dispatch parameters
int areaTileSize = 8;
int numTilesX = (sssartParams.texWidth + (areaTileSize - 1)) / areaTileSize;
int numTilesY = (sssartParams.texHeight + (areaTileSize - 1)) / areaTileSize;
// We have noticed from extensive profiling that ray-trace shaders are not as effective for running per-pixel computation. In order to reduce that,
// we do a first prepass that compute the analytic term and probability and generates the first integration sample
// Bind the light data
cmd.SetComputeBufferParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowPrepassKernel, HDShaderIDs._LightDatas, sssartResources.lightData);
cmd.SetComputeMatrixParam(sssartParams.screenSpaceShadowsCS, HDShaderIDs._RaytracingAreaWorldToLocal, sssartParams.worldToLocalMatrix);
cmd.SetComputeIntParam(sssartParams.screenSpaceShadowsCS, HDShaderIDs._RaytracingTargetAreaLight, sssartParams.lightIndex);
sssartParams.shaderVariablesRayTracingCB._RaytracingNumSamples = sssartParams.numSamples;
ConstantBuffer.PushGlobal(cmd, sssartParams.shaderVariablesRayTracingCB, HDShaderIDs._ShaderVariablesRaytracing);
// Bind the input buffers
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowPrepassKernel, HDShaderIDs._DepthTexture, sssartResources.depthStencilBuffer);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowPrepassKernel, HDShaderIDs._NormalBufferTexture, sssartResources.normalBuffer);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowPrepassKernel, HDShaderIDs._GBufferTexture[0], sssartResources.gbuffer0);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowPrepassKernel, HDShaderIDs._GBufferTexture[1], sssartResources.gbuffer1);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowPrepassKernel, HDShaderIDs._GBufferTexture[2], sssartResources.gbuffer2);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowPrepassKernel, HDShaderIDs._GBufferTexture[3], sssartResources.gbuffer3);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowPrepassKernel, HDShaderIDs._CookieAtlas, sssartResources.cookieAtlasTexture);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowPrepassKernel, HDShaderIDs._StencilTexture, sssartResources.depthStencilBuffer, 0, RenderTextureSubElement.Stencil);
// Bind the output buffers
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowPrepassKernel, HDShaderIDs._RaytracedAreaShadowIntegration, sssartResources.intermediateBufferRGBA0);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowPrepassKernel, HDShaderIDs._RaytracedAreaShadowSample, sssartResources.intermediateBufferRGBA1);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowPrepassKernel, HDShaderIDs._RaytracingDirectionBuffer, sssartResources.directionBuffer);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowPrepassKernel, HDShaderIDs._RayTracingLengthBuffer, sssartResources.rayLengthBuffer);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowPrepassKernel, HDShaderIDs._AnalyticProbBuffer, sssartResources.intermediateBufferRG0);
cmd.DispatchCompute(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowPrepassKernel, numTilesX, numTilesY, sssartParams.viewCount);
// Set ray count texture
cmd.SetRayTracingTextureParam(sssartParams.screenSpaceShadowsRT, HDShaderIDs._RayCountTexture, sssartResources.rayCountTexture);
// Set the acceleration structure for the pass
cmd.SetRayTracingAccelerationStructure(sssartParams.screenSpaceShadowsRT, HDShaderIDs._RaytracingAccelerationStructureName, sssartParams.accelerationStructure);
// Define the shader pass to use for the reflection pass
cmd.SetRayTracingShaderPass(sssartParams.screenSpaceShadowsRT, "VisibilityDXR");
// Input data
cmd.SetRayTracingBufferParam(sssartParams.screenSpaceShadowsRT, HDShaderIDs._LightDatas, sssartResources.lightData);
cmd.SetRayTracingTextureParam(sssartParams.screenSpaceShadowsRT, HDShaderIDs._DepthTexture, sssartResources.depthStencilBuffer);
cmd.SetRayTracingTextureParam(sssartParams.screenSpaceShadowsRT, HDShaderIDs._NormalBufferTexture, sssartResources.normalBuffer);
cmd.SetRayTracingTextureParam(sssartParams.screenSpaceShadowsRT, HDShaderIDs._AnalyticProbBuffer, sssartResources.intermediateBufferRG0);
cmd.SetRayTracingTextureParam(sssartParams.screenSpaceShadowsRT, HDShaderIDs._RaytracedAreaShadowSample, sssartResources.intermediateBufferRGBA1);
cmd.SetRayTracingTextureParam(sssartParams.screenSpaceShadowsRT, HDShaderIDs._RaytracingDirectionBuffer, sssartResources.directionBuffer);
cmd.SetRayTracingTextureParam(sssartParams.screenSpaceShadowsRT, HDShaderIDs._RayTracingLengthBuffer, sssartResources.rayLengthBuffer);
cmd.SetRayTracingIntParam(sssartParams.screenSpaceShadowsRT, HDShaderIDs._RaytracingTargetAreaLight, sssartParams.lightIndex);
// Output data
cmd.SetRayTracingTextureParam(sssartParams.screenSpaceShadowsRT, HDShaderIDs._RaytracedAreaShadowIntegration, sssartResources.intermediateBufferRGBA0);
// Evaluate the intersection
cmd.DispatchRays(sssartParams.screenSpaceShadowsRT, m_RayGenAreaShadowSingleName, (uint)sssartParams.texWidth, (uint)sssartParams.texHeight, (uint)sssartParams.viewCount);
// Let's do the following samples (if any)
for (int sampleIndex = 1; sampleIndex < sssartParams.numSamples; ++sampleIndex)
{
// Update global Constant Buffer
sssartParams.shaderVariablesRayTracingCB._RaytracingNumSamples = sssartParams.numSamples;
sssartParams.shaderVariablesRayTracingCB._RaytracingSampleIndex = sampleIndex;
ConstantBuffer.PushGlobal(cmd, sssartParams.shaderVariablesRayTracingCB, HDShaderIDs._ShaderVariablesRaytracing);
// Bind the light data
cmd.SetComputeBufferParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowNewSampleKernel, HDShaderIDs._LightDatas, sssartResources.lightData);
cmd.SetComputeIntParam(sssartParams.screenSpaceShadowsCS, HDShaderIDs._RaytracingTargetAreaLight, sssartParams.lightIndex);
cmd.SetComputeMatrixParam(sssartParams.screenSpaceShadowsCS, HDShaderIDs._RaytracingAreaWorldToLocal, sssartParams.worldToLocalMatrix);
// Input Buffers
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowNewSampleKernel, HDShaderIDs._DepthTexture, sssartResources.depthStencilBuffer);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowNewSampleKernel, HDShaderIDs._NormalBufferTexture, sssartResources.normalBuffer);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowNewSampleKernel, HDShaderIDs._GBufferTexture[0], sssartResources.gbuffer0);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowNewSampleKernel, HDShaderIDs._GBufferTexture[1], sssartResources.gbuffer1);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowNewSampleKernel, HDShaderIDs._GBufferTexture[2], sssartResources.gbuffer2);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowNewSampleKernel, HDShaderIDs._GBufferTexture[3], sssartResources.gbuffer3);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowNewSampleKernel, HDShaderIDs._CookieAtlas, sssartResources.cookieAtlasTexture);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowNewSampleKernel, HDShaderIDs._StencilTexture, sssartResources.depthStencilBuffer, 0, RenderTextureSubElement.Stencil);
// Output buffers
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowNewSampleKernel, HDShaderIDs._RaytracedAreaShadowSample, sssartResources.intermediateBufferRGBA1);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowNewSampleKernel, HDShaderIDs._RaytracingDirectionBuffer, sssartResources.directionBuffer);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowNewSampleKernel, HDShaderIDs._RayTracingLengthBuffer, sssartResources.rayLengthBuffer);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowNewSampleKernel, HDShaderIDs._AnalyticProbBuffer, sssartResources.intermediateBufferRG0);
cmd.DispatchCompute(sssartParams.screenSpaceShadowsCS, sssartParams.areaRaytracingShadowNewSampleKernel, numTilesX, numTilesY, sssartParams.viewCount);
// Input buffers
cmd.SetRayTracingBufferParam(sssartParams.screenSpaceShadowsRT, HDShaderIDs._LightDatas, sssartResources.lightData);
cmd.SetRayTracingTextureParam(sssartParams.screenSpaceShadowsRT, HDShaderIDs._DepthTexture, sssartResources.depthStencilBuffer);
cmd.SetRayTracingTextureParam(sssartParams.screenSpaceShadowsRT, HDShaderIDs._NormalBufferTexture, sssartResources.normalBuffer);
cmd.SetRayTracingTextureParam(sssartParams.screenSpaceShadowsRT, HDShaderIDs._RaytracedAreaShadowSample, sssartResources.intermediateBufferRGBA1);
cmd.SetRayTracingTextureParam(sssartParams.screenSpaceShadowsRT, HDShaderIDs._RaytracingDirectionBuffer, sssartResources.directionBuffer);
cmd.SetRayTracingTextureParam(sssartParams.screenSpaceShadowsRT, HDShaderIDs._RayTracingLengthBuffer, sssartResources.rayLengthBuffer);
cmd.SetRayTracingTextureParam(sssartParams.screenSpaceShadowsRT, HDShaderIDs._AnalyticProbBuffer, sssartResources.intermediateBufferRG0);
cmd.SetRayTracingIntParam(sssartParams.screenSpaceShadowsRT, HDShaderIDs._RaytracingTargetAreaLight, sssartParams.lightIndex);
// Output buffers
cmd.SetRayTracingTextureParam(sssartParams.screenSpaceShadowsRT, HDShaderIDs._RaytracedAreaShadowIntegration, sssartResources.intermediateBufferRGBA0);
// Evaluate the intersection
cmd.DispatchRays(sssartParams.screenSpaceShadowsRT, m_RayGenAreaShadowSingleName, (uint)sssartParams.texWidth, (uint)sssartParams.texHeight, (uint)sssartParams.viewCount);
}
if (sssartParams.filterTracedShadow)
{
Vector4 shadowChannelMask0 = new Vector4();
Vector4 shadowChannelMask1 = new Vector4();
Vector4 shadowChannelMask2 = new Vector4();
GetShadowChannelMask(sssartParams.areaShadowSlot, ScreenSpaceShadowType.Area, ref shadowChannelMask0);
GetShadowChannelMask(sssartParams.areaShadowSlot, ScreenSpaceShadowType.GrayScale, ref shadowChannelMask1);
GetShadowChannelMask(sssartParams.areaShadowSlot + 1, ScreenSpaceShadowType.GrayScale, ref shadowChannelMask2);
// Global parameters
cmd.SetComputeIntParam(sssartParams.screenSpaceShadowsFilterCS, HDShaderIDs._RaytracingDenoiseRadius, sssartParams.filterSize);
cmd.SetComputeIntParam(sssartParams.screenSpaceShadowsFilterCS, HDShaderIDs._DenoisingHistorySlice, sssartParams.areaShadowSlot / 4);
cmd.SetComputeVectorParam(sssartParams.screenSpaceShadowsFilterCS, HDShaderIDs._DenoisingHistoryMask, shadowChannelMask0);
cmd.SetComputeVectorParam(sssartParams.screenSpaceShadowsFilterCS, HDShaderIDs._DenoisingHistoryMaskSn, shadowChannelMask1);
cmd.SetComputeVectorParam(sssartParams.screenSpaceShadowsFilterCS, HDShaderIDs._DenoisingHistoryMaskUn, shadowChannelMask2);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaShadowApplyTAAKernel, HDShaderIDs._AnalyticProbBuffer, sssartResources.intermediateBufferRG0);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaShadowApplyTAAKernel, HDShaderIDs._DepthTexture, sssartResources.depthStencilBuffer);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaShadowApplyTAAKernel, HDShaderIDs._AreaShadowHistory, sssartResources.shadowHistoryArray);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaShadowApplyTAAKernel, HDShaderIDs._AnalyticHistoryBuffer, sssartResources.analyticHistoryArray);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaShadowApplyTAAKernel, HDShaderIDs._DenoiseInputTexture, sssartResources.intermediateBufferRGBA0);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaShadowApplyTAAKernel, HDShaderIDs._DenoiseOutputTextureRW, sssartResources.intermediateBufferRGBA1);
cmd.SetComputeFloatParam(sssartParams.screenSpaceShadowsFilterCS, HDShaderIDs._HistoryValidity, sssartParams.historyValidity);
cmd.DispatchCompute(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaShadowApplyTAAKernel, numTilesX, numTilesY, sssartParams.viewCount);
// Update the shadow history buffer
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaUpdateAnalyticHistoryKernel, HDShaderIDs._AnalyticProbBuffer, sssartResources.intermediateBufferRG0);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaUpdateAnalyticHistoryKernel, HDShaderIDs._AnalyticHistoryBuffer, sssartResources.analyticHistoryArray);
cmd.DispatchCompute(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaUpdateAnalyticHistoryKernel, numTilesX, numTilesY, sssartParams.viewCount);
// Update the analytic history buffer
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaUpdateShadowHistoryKernel, HDShaderIDs._DenoiseInputTexture, sssartResources.intermediateBufferRGBA1);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaUpdateShadowHistoryKernel, HDShaderIDs._AreaShadowHistoryRW, sssartResources.shadowHistoryArray);
cmd.DispatchCompute(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaUpdateShadowHistoryKernel, numTilesX, numTilesY, sssartParams.viewCount);
// Inject parameters for noise estimation
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaEstimateNoiseKernel, HDShaderIDs._DepthTexture, sssartResources.depthStencilBuffer);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaEstimateNoiseKernel, HDShaderIDs._NormalBufferTexture, sssartResources.normalBuffer);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaEstimateNoiseKernel, HDShaderIDs._ScramblingTexture, sssartParams.scramblingTex);
// Noise estimation pre-pass
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaEstimateNoiseKernel, HDShaderIDs._DenoiseInputTexture, sssartResources.intermediateBufferRGBA1);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaEstimateNoiseKernel, HDShaderIDs._DenoiseOutputTextureRW, sssartResources.intermediateBufferRGBA0);
cmd.DispatchCompute(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaEstimateNoiseKernel, numTilesX, numTilesY, sssartParams.viewCount);
// Reinject parameters for denoising
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaFirstDenoiseKernel, HDShaderIDs._DepthTexture, sssartResources.depthStencilBuffer);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaFirstDenoiseKernel, HDShaderIDs._NormalBufferTexture, sssartResources.normalBuffer);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaFirstDenoiseKernel, HDShaderIDs._ScreenSpaceShadowsTextureRW, sssartResources.screenSpaceShadowTextureArray);
// First denoising pass
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaFirstDenoiseKernel, HDShaderIDs._DenoiseInputTexture, sssartResources.intermediateBufferRGBA0);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaFirstDenoiseKernel, HDShaderIDs._DenoiseOutputTextureRW, sssartResources.intermediateBufferRGBA1);
cmd.DispatchCompute(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaFirstDenoiseKernel, numTilesX, numTilesY, sssartParams.viewCount);
// Re-inject parameters for denoising
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaSecondDenoiseKernel, HDShaderIDs._DepthTexture, sssartResources.depthStencilBuffer);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaSecondDenoiseKernel, HDShaderIDs._NormalBufferTexture, sssartResources.normalBuffer);
// Second (and final) denoising pass
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaSecondDenoiseKernel, HDShaderIDs._DenoiseInputTexture, sssartResources.intermediateBufferRGBA1);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaSecondDenoiseKernel, HDShaderIDs._DenoiseOutputTextureRW, sssartResources.intermediateBufferRGBA0);
cmd.DispatchCompute(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaSecondDenoiseKernel, numTilesX, numTilesY, sssartParams.viewCount);
}
else
{
Vector4 shadowChannelMask0 = new Vector4();
int areaShadowSlice = sssartParams.areaShadowSlot / 4;
GetShadowChannelMask(sssartParams.areaShadowSlot, ScreenSpaceShadowType.Area, ref shadowChannelMask0);
cmd.SetComputeVectorParam(sssartParams.screenSpaceShadowsFilterCS, HDShaderIDs._DenoisingHistoryMask, shadowChannelMask0);
cmd.SetComputeIntParam(sssartParams.screenSpaceShadowsFilterCS, HDShaderIDs._DenoisingHistorySlice, areaShadowSlice);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaShadowNoDenoiseKernel, HDShaderIDs._DenoiseInputTexture, sssartResources.intermediateBufferRGBA0);
cmd.SetComputeTextureParam(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaShadowNoDenoiseKernel, HDShaderIDs._ScreenSpaceShadowsTextureRW, sssartResources.screenSpaceShadowTextureArray);
cmd.DispatchCompute(sssartParams.screenSpaceShadowsFilterCS, sssartParams.areaShadowNoDenoiseKernel, numTilesX, numTilesY, sssartParams.viewCount);
}
}
