void RenderIndirectDiffusePerformance(HDCamera hdCamera, CommandBuffer cmd, ScriptableRenderContext renderContext, int frameCount)
{
// Fetch the required resources
var settings = hdCamera.volumeStack.GetComponent <GlobalIllumination>();
BlueNoise blueNoise = GetBlueNoiseManager();
// Fetch all the settings
LightCluster lightClusterSettings = hdCamera.volumeStack.GetComponent <LightCluster>();
RayTracingSettings rtSettings = hdCamera.volumeStack.GetComponent <RayTracingSettings>();
ComputeShader indirectDiffuseCS = m_Asset.renderPipelineRayTracingResources.indirectDiffuseRaytracingCS;
// Request the intermediate texture we will be using
RTHandle directionBuffer = GetRayTracingBuffer(InternalRayTracingBuffers.Direction);
RTHandle intermediateBuffer1 = GetRayTracingBuffer(InternalRayTracingBuffers.RGBA1);
using (new ProfilingScope(cmd, ProfilingSampler.Get(HDProfileId.RaytracingIntegrateIndirectDiffuse)))
{
// Fetch the new sample kernel
int currentKernel = indirectDiffuseCS.FindKernel(settings.fullResolution.value ? "RaytracingIndirectDiffuseFullRes" : "RaytracingIndirectDiffuseHalfRes");
// Inject the ray-tracing sampling data
blueNoise.BindDitheredRNGData8SPP(cmd);
// Bind all the required textures
cmd.SetComputeTextureParam(indirectDiffuseCS, currentKernel, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthStencilBuffer());
cmd.SetComputeTextureParam(indirectDiffuseCS, currentKernel, HDShaderIDs._NormalBufferTexture, m_SharedRTManager.GetNormalBuffer());
// Bind all the required scalars
cmd.SetComputeFloatParam(indirectDiffuseCS, HDShaderIDs._RaytracingIntensityClamp, settings.clampValue.value);
// Bind the sampling data
int frameIndex = RayTracingFrameIndex(hdCamera);
cmd.SetComputeIntParam(indirectDiffuseCS, HDShaderIDs._RaytracingFrameIndex, frameIndex);
// Bind the output buffers
cmd.SetComputeTextureParam(indirectDiffuseCS, currentKernel, HDShaderIDs._RaytracingDirectionBuffer, directionBuffer);
// Texture dimensions
int texWidth = hdCamera.actualWidth;
int texHeight = hdCamera.actualHeight;
// Evaluate the dispatch parameters
int areaTileSize = 8;
int numTilesXHR = (texWidth + (areaTileSize - 1)) / areaTileSize;
int numTilesYHR = (texHeight + (areaTileSize - 1)) / areaTileSize;
// Compute the directions
cmd.DispatchCompute(indirectDiffuseCS, currentKernel, numTilesXHR, numTilesYHR, hdCamera.viewCount);
// Prepare the components for the deferred lighting
DeferredLightingRTParameters deferredParamters = PrepareIndirectDiffuseDeferredLightingRTParameters(hdCamera);
DeferredLightingRTResources deferredResources = PrepareDeferredLightingRTResources(hdCamera, directionBuffer, m_IndirectDiffuseBuffer);
// Evaluate the deferred lighting
RenderRaytracingDeferredLighting(cmd, deferredParamters, deferredResources);
}
using (new ProfilingScope(cmd, ProfilingSampler.Get(HDProfileId.RaytracingFilterIndirectDiffuse)))
{
// Fetch the right filter to use
int currentKernel = indirectDiffuseCS.FindKernel(settings.fullResolution.value ? "IndirectDiffuseIntegrationUpscaleFullRes" : "IndirectDiffuseIntegrationUpscaleHalfRes");
// Inject all the parameters for the compute
cmd.SetComputeTextureParam(indirectDiffuseCS, currentKernel, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthStencilBuffer());
cmd.SetComputeTextureParam(indirectDiffuseCS, currentKernel, HDShaderIDs._NormalBufferTexture, m_SharedRTManager.GetNormalBuffer());
cmd.SetComputeTextureParam(indirectDiffuseCS, currentKernel, HDShaderIDs._IndirectDiffuseTexture, m_IndirectDiffuseBuffer);
cmd.SetComputeTextureParam(indirectDiffuseCS, currentKernel, HDShaderIDs._RaytracingDirectionBuffer, directionBuffer);
cmd.SetComputeTextureParam(indirectDiffuseCS, currentKernel, HDShaderIDs._BlueNoiseTexture, blueNoise.textureArray16RGB);
cmd.SetComputeTextureParam(indirectDiffuseCS, currentKernel, HDShaderIDs._UpscaledIndirectDiffuseTextureRW, intermediateBuffer1);
cmd.SetComputeTextureParam(indirectDiffuseCS, currentKernel, HDShaderIDs._ScramblingTexture, m_Asset.renderPipelineResources.textures.scramblingTex);
cmd.SetComputeIntParam(indirectDiffuseCS, HDShaderIDs._SpatialFilterRadius, settings.upscaleRadius.value);
// Texture dimensions
int texWidth = hdCamera.actualWidth;
int texHeight = hdCamera.actualHeight;
// Evaluate the dispatch parameters
int areaTileSize = 8;
int numTilesXHR = (texWidth + (areaTileSize - 1)) / areaTileSize;
int numTilesYHR = (texHeight + (areaTileSize - 1)) / areaTileSize;
// Compute the texture
cmd.DispatchCompute(indirectDiffuseCS, currentKernel, numTilesXHR, numTilesYHR, hdCamera.viewCount);
// Copy the data back to the right buffer
HDUtils.BlitCameraTexture(cmd, intermediateBuffer1, m_IndirectDiffuseBuffer);
// Denoise if required
if (settings.denoise.value)
{
DenoiseIndirectDiffuseBuffer(hdCamera, cmd, settings);
}
}
}
public void RenderReflectionsT1(HDCamera hdCamera, CommandBuffer cmd, RTHandle outputTexture, ScriptableRenderContext renderContext, int frameCount)
{
// Fetch the required resources
HDRaytracingEnvironment rtEnvironment = m_RayTracingManager.CurrentEnvironment();
BlueNoise blueNoise = m_RayTracingManager.GetBlueNoiseManager();
RayTracingShader reflectionShaderRT = m_Asset.renderPipelineRayTracingResources.reflectionRaytracingRT;
ComputeShader reflectionShaderCS = m_Asset.renderPipelineRayTracingResources.reflectionRaytracingCS;
ComputeShader reflectionFilter = m_Asset.renderPipelineRayTracingResources.reflectionBilateralFilterCS;
// Fetch all the settings
var settings = VolumeManager.instance.stack.GetComponent <ScreenSpaceReflection>();
LightCluster lightClusterSettings = VolumeManager.instance.stack.GetComponent <LightCluster>();
if (settings.deferredMode.value)
{
// Fetch the new sample kernel
int currentKernel = reflectionShaderCS.FindKernel(settings.fullResolution.value ? "RaytracingReflectionsFullRes" : "RaytracingReflectionsHalfRes");
// Inject the ray-tracing sampling data
blueNoise.BindDitheredRNGData8SPP(cmd);
// Bind all the required textures
cmd.SetComputeTextureParam(reflectionShaderCS, currentKernel, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthStencilBuffer());
cmd.SetComputeTextureParam(reflectionShaderCS, currentKernel, HDShaderIDs._NormalBufferTexture, m_SharedRTManager.GetNormalBuffer());
RenderTargetIdentifier clearCoatMaskTexture = hdCamera.frameSettings.litShaderMode == LitShaderMode.Deferred ? m_GbufferManager.GetBuffersRTI()[2] : TextureXR.GetBlackTexture();
cmd.SetComputeTextureParam(reflectionShaderCS, currentKernel, HDShaderIDs._SsrClearCoatMaskTexture, clearCoatMaskTexture);
// Bind all the required scalars
cmd.SetComputeFloatParam(reflectionShaderCS, HDShaderIDs._RaytracingIntensityClamp, settings.clampValue.value);
cmd.SetComputeFloatParam(reflectionShaderCS, HDShaderIDs._RaytracingReflectionMinSmoothness, settings.minSmoothness.value);
cmd.SetComputeIntParam(reflectionShaderCS, HDShaderIDs._RaytracingIncludeSky, settings.reflectSky.value ? 1 : 0);
// Bind the sampling data
int frameIndex = hdCamera.IsTAAEnabled() ? hdCamera.taaFrameIndex : (int)m_FrameCount % 8;
cmd.SetComputeIntParam(reflectionShaderCS, HDShaderIDs._RaytracingFrameIndex, frameIndex);
// Bind the output buffers
cmd.SetComputeTextureParam(reflectionShaderCS, currentKernel, HDShaderIDs._RaytracingDirectionBuffer, m_ReflIntermediateTexture1);
// Texture dimensions
int texWidth = hdCamera.actualWidth;
int texHeight = hdCamera.actualHeight;
if (settings.fullResolution.value)
{
// Evaluate the dispatch parameters
int areaTileSize = 8;
int numTilesXHR = (texWidth + (areaTileSize - 1)) / areaTileSize;
int numTilesYHR = (texHeight + (areaTileSize - 1)) / areaTileSize;
// Compute the directions
cmd.DispatchCompute(reflectionShaderCS, currentKernel, numTilesXHR, numTilesYHR, hdCamera.viewCount);
}
else
{
// Evaluate the dispatch parameters
int areaTileSize = 8;
int numTilesXHR = (texWidth / 2 + (areaTileSize - 1)) / areaTileSize;
int numTilesYHR = (texHeight / 2 + (areaTileSize - 1)) / areaTileSize;
// Compute the directions
cmd.DispatchCompute(reflectionShaderCS, currentKernel, numTilesXHR, numTilesYHR, hdCamera.viewCount);
}
// Prepare the components for the deferred lighting
DeferredLightingRTParameters deferredParamters = PrepareReflectionDeferredLightingRTParameters(hdCamera, rtEnvironment);
DeferredLightingRTResources deferredResources = PrepareDeferredLightingRTResources(m_ReflIntermediateTexture1, m_ReflIntermediateTexture0);
// Evaluate the deferred lighting
RenderRaytracingDeferredLighting(cmd, deferredParamters, deferredResources);
}
else
{
// Bind all the required data for ray tracing
BindRayTracedReflectionData(cmd, hdCamera, rtEnvironment, reflectionShaderRT, settings, lightClusterSettings);
// Run the computation
if (settings.fullResolution.value)
{
cmd.DispatchRays(reflectionShaderRT, m_RayGenReflectionFullResName, (uint)hdCamera.actualWidth, (uint)hdCamera.actualHeight, (uint)hdCamera.viewCount);
}
else
{
// Run the computation
cmd.DispatchRays(reflectionShaderRT, m_RayGenReflectionHalfResName, (uint)(hdCamera.actualWidth / 2), (uint)(hdCamera.actualHeight / 2), (uint)hdCamera.viewCount);
}
}
using (new ProfilingSample(cmd, "Filter Reflection", CustomSamplerId.RaytracingFilterReflection.GetSampler()))
{
// Fetch the right filter to use
int currentKernel = 0;
if (settings.fullResolution.value)
{
currentKernel = reflectionFilter.FindKernel("ReflectionIntegrationUpscaleFullRes");
}
else
{
currentKernel = reflectionFilter.FindKernel("ReflectionIntegrationUpscaleHalfRes");
}
// Inject all the parameters for the compute
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._SsrLightingTextureRW, m_ReflIntermediateTexture0);
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._SsrHitPointTexture, m_ReflIntermediateTexture1);
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthStencilBuffer());
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._NormalBufferTexture, m_SharedRTManager.GetNormalBuffer());
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._BlueNoiseTexture, blueNoise.textureArray16RGB);
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, "_RaytracingReflectionTexture", outputTexture);
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._ScramblingTexture, m_Asset.renderPipelineResources.textures.scramblingTex);
cmd.SetComputeIntParam(reflectionFilter, HDShaderIDs._SpatialFilterRadius, settings.upscaleRadius.value);
cmd.SetComputeIntParam(reflectionFilter, HDShaderIDs._RaytracingDenoiseRadius, settings.denoise.value ? settings.denoiserRadius.value : 0);
cmd.SetComputeFloatParam(reflectionFilter, HDShaderIDs._RaytracingReflectionMinSmoothness, settings.minSmoothness.value);
// Texture dimensions
int texWidth = hdCamera.actualWidth;
int texHeight = hdCamera.actualHeight;
// Evaluate the dispatch parameters
int areaTileSize = 8;
int numTilesXHR = (texWidth + (areaTileSize - 1)) / areaTileSize;
int numTilesYHR = (texHeight + (areaTileSize - 1)) / areaTileSize;
// Bind the right texture for clear coat support
RenderTargetIdentifier clearCoatMaskTexture = hdCamera.frameSettings.litShaderMode == LitShaderMode.Deferred ? m_GbufferManager.GetBuffersRTI()[2] : TextureXR.GetBlackTexture();
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._SsrClearCoatMaskTexture, clearCoatMaskTexture);
// Compute the texture
cmd.DispatchCompute(reflectionFilter, currentKernel, numTilesXHR, numTilesYHR, hdCamera.viewCount);
using (new ProfilingSample(cmd, "Filter Reflection", CustomSamplerId.RaytracingFilterReflection.GetSampler()))
{
if (settings.denoise.value)
{
// Grab the history buffer
RTHandle reflectionHistory = hdCamera.GetCurrentFrameRT((int)HDCameraFrameHistoryType.RaytracedReflection)
?? hdCamera.AllocHistoryFrameRT((int)HDCameraFrameHistoryType.RaytracedReflection, ReflectionHistoryBufferAllocatorFunction, 1);
HDSimpleDenoiser simpleDenoiser = m_RayTracingManager.GetSimpleDenoiser();
simpleDenoiser.DenoiseBuffer(cmd, hdCamera, outputTexture, reflectionHistory, m_ReflIntermediateTexture0, settings.denoiserRadius.value, singleChannel: false);
HDUtils.BlitCameraTexture(cmd, m_ReflIntermediateTexture0, outputTexture);
}
}
}
}
public void RenderIndirectDiffuseT1(HDCamera hdCamera, CommandBuffer cmd, ScriptableRenderContext renderContext, int frameCount)
{
// Fetch the required resources
var settings = VolumeManager.instance.stack.GetComponent <GlobalIllumination>();
BlueNoise blueNoise = GetBlueNoiseManager();
// Fetch all the settings
LightCluster lightClusterSettings = VolumeManager.instance.stack.GetComponent <LightCluster>();
RayTracingSettings rtSettings = VolumeManager.instance.stack.GetComponent <RayTracingSettings>();
ComputeShader indirectDiffuseCS = m_Asset.renderPipelineRayTracingResources.indirectDiffuseRaytracingCS;
using (new ProfilingSample(cmd, "Ray Trace Indirect Diffuse", CustomSamplerId.RaytracingIntegrateIndirectDiffuse.GetSampler()))
{
if (settings.deferredMode.value)
{
// Fetch the new sample kernel
int currentKernel = indirectDiffuseCS.FindKernel(settings.fullResolution.value ? "RaytracingIndirectDiffuseFullRes" : "RaytracingIndirectDiffuseHalfRes");
// Inject the ray-tracing sampling data
blueNoise.BindDitheredRNGData8SPP(cmd);
// Bind all the required textures
cmd.SetComputeTextureParam(indirectDiffuseCS, currentKernel, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthStencilBuffer());
cmd.SetComputeTextureParam(indirectDiffuseCS, currentKernel, HDShaderIDs._NormalBufferTexture, m_SharedRTManager.GetNormalBuffer());
// Bind all the required scalars
cmd.SetComputeFloatParam(indirectDiffuseCS, HDShaderIDs._RaytracingIntensityClamp, settings.clampValue.value);
// Bind the sampling data
int frameIndex = hdCamera.IsTAAEnabled() ? hdCamera.taaFrameIndex : (int)m_FrameCount % 8;
cmd.SetComputeIntParam(indirectDiffuseCS, HDShaderIDs._RaytracingFrameIndex, frameIndex);
// Bind the output buffers
cmd.SetComputeTextureParam(indirectDiffuseCS, currentKernel, HDShaderIDs._RaytracingDirectionBuffer, m_RaytracingDirectionBuffer);
// Texture dimensions
int texWidth = hdCamera.actualWidth;
int texHeight = hdCamera.actualHeight;
// Evaluate the dispatch parameters
int areaTileSize = 8;
int numTilesXHR = (texWidth + (areaTileSize - 1)) / areaTileSize;
int numTilesYHR = (texHeight + (areaTileSize - 1)) / areaTileSize;
// Compute the directions
cmd.DispatchCompute(indirectDiffuseCS, currentKernel, numTilesXHR, numTilesYHR, hdCamera.viewCount);
// Prepare the components for the deferred lighting
DeferredLightingRTParameters deferredParamters = PrepareIndirectDiffuseDeferredLightingRTParameters(hdCamera);
DeferredLightingRTResources deferredResources = PrepareDeferredLightingRTResources(hdCamera, m_RaytracingDirectionBuffer, m_IDIntermediateBuffer0);
// Evaluate the deferred lighting
RenderRaytracingDeferredLighting(cmd, deferredParamters, deferredResources);
}
else
{
RayTracingShader indirectDiffuseRT = m_Asset.renderPipelineRayTracingResources.indirectDiffuseRaytracingRT;
BindRayTracedIndirectDiffuseData(cmd, hdCamera, indirectDiffuseRT, settings, lightClusterSettings, rtSettings);
// Run the computation
CoreUtils.SetKeyword(cmd, "DIFFUSE_LIGHTING_ONLY", true);
CoreUtils.SetKeyword(cmd, "MULTI_BOUNCE_INDIRECT", false);
// Run the computation
cmd.DispatchRays(indirectDiffuseRT, m_RayGenIndirectDiffuseFullResName, (uint)hdCamera.actualWidth, (uint)hdCamera.actualHeight, (uint)hdCamera.viewCount);
CoreUtils.SetKeyword(cmd, "DIFFUSE_LIGHTING_ONLY", false);
}
}
using (new ProfilingSample(cmd, "Filter Indirect Diffuse", CustomSamplerId.RaytracingFilterIndirectDiffuse.GetSampler()))
{
// Fetch the right filter to use
int currentKernel = indirectDiffuseCS.FindKernel(settings.fullResolution.value ? "IndirectDiffuseIntegrationUpscaleFullRes" : "IndirectDiffuseIntegrationUpscaleHalfRes");
// Inject all the parameters for the compute
cmd.SetComputeTextureParam(indirectDiffuseCS, currentKernel, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthStencilBuffer());
cmd.SetComputeTextureParam(indirectDiffuseCS, currentKernel, HDShaderIDs._NormalBufferTexture, m_SharedRTManager.GetNormalBuffer());
cmd.SetComputeTextureParam(indirectDiffuseCS, currentKernel, HDShaderIDs._IndirectDiffuseTexture, m_IDIntermediateBuffer0);
cmd.SetComputeTextureParam(indirectDiffuseCS, currentKernel, HDShaderIDs._RaytracingDirectionBuffer, m_RaytracingDirectionBuffer);
cmd.SetComputeTextureParam(indirectDiffuseCS, currentKernel, HDShaderIDs._BlueNoiseTexture, blueNoise.textureArray16RGB);
cmd.SetComputeTextureParam(indirectDiffuseCS, currentKernel, HDShaderIDs._UpscaledIndirectDiffuseTextureRW, m_IDIntermediateBuffer1);
cmd.SetComputeTextureParam(indirectDiffuseCS, currentKernel, HDShaderIDs._ScramblingTexture, m_Asset.renderPipelineResources.textures.scramblingTex);
cmd.SetComputeIntParam(indirectDiffuseCS, HDShaderIDs._SpatialFilterRadius, settings.upscaleRadius.value);
// Texture dimensions
int texWidth = hdCamera.actualWidth;
int texHeight = hdCamera.actualHeight;
// Evaluate the dispatch parameters
int areaTileSize = 8;
int numTilesXHR = (texWidth + (areaTileSize - 1)) / areaTileSize;
int numTilesYHR = (texHeight + (areaTileSize - 1)) / areaTileSize;
// Compute the texture
cmd.DispatchCompute(indirectDiffuseCS, currentKernel, numTilesXHR, numTilesYHR, hdCamera.viewCount);
// Copy the data back to the right buffer
HDUtils.BlitCameraTexture(cmd, m_IDIntermediateBuffer1, m_IDIntermediateBuffer0);
// Denoise if required
if (settings.denoise.value)
{
DenoiseIndirectDiffuseBuffer(hdCamera, cmd, settings);
}
}
}
void RenderReflectionsPerformance(HDCamera hdCamera, CommandBuffer cmd, RTHandle outputTexture, ScriptableRenderContext renderContext, int frameCount, bool transparent)
{
// Fetch the required resources
BlueNoise blueNoise = GetBlueNoiseManager();
RayTracingShader reflectionShaderRT = m_Asset.renderPipelineRayTracingResources.reflectionRaytracingRT;
ComputeShader reflectionShaderCS = m_Asset.renderPipelineRayTracingResources.reflectionRaytracingCS;
ComputeShader reflectionFilter = m_Asset.renderPipelineRayTracingResources.reflectionBilateralFilterCS;
RTHandle intermediateBuffer0 = GetRayTracingBuffer(InternalRayTracingBuffers.RGBA0);
RTHandle intermediateBuffer1 = GetRayTracingBuffer(InternalRayTracingBuffers.RGBA1);
CoreUtils.SetRenderTarget(cmd, intermediateBuffer1, m_SharedRTManager.GetDepthStencilBuffer(), ClearFlag.Color, clearColor: Color.black);
// Fetch all the settings
var settings = hdCamera.volumeStack.GetComponent <ScreenSpaceReflection>();
LightCluster lightClusterSettings = hdCamera.volumeStack.GetComponent <LightCluster>();
RayTracingSettings rtSettings = hdCamera.volumeStack.GetComponent <RayTracingSettings>();
// Texture dimensions
int texWidth = hdCamera.actualWidth;
int texHeight = hdCamera.actualHeight;
// Evaluate the dispatch parameters
int areaTileSize = 8;
int numTilesXHR = 0, numTilesYHR = 0;
int currentKernel = 0;
RenderTargetIdentifier clearCoatMaskTexture;
using (new ProfilingScope(cmd, ProfilingSampler.Get(HDProfileId.RaytracingIntegrateReflection)))
{
// Fetch the new sample kernel
if (settings.fullResolution.value)
{
currentKernel = transparent ? m_RaytracingReflectionsTransparentFullResKernel : m_RaytracingReflectionsFullResKernel;
}
else
{
currentKernel = transparent ? m_RaytracingReflectionsTransparentHalfResKernel : m_RaytracingReflectionsHalfResKernel;
}
// Inject the ray-tracing sampling data
blueNoise.BindDitheredRNGData8SPP(cmd);
// Bind all the required textures
cmd.SetComputeTextureParam(reflectionShaderCS, currentKernel, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthStencilBuffer());
cmd.SetComputeTextureParam(reflectionShaderCS, currentKernel, HDShaderIDs._NormalBufferTexture, m_SharedRTManager.GetNormalBuffer());
clearCoatMaskTexture = hdCamera.frameSettings.litShaderMode == LitShaderMode.Deferred ? m_GbufferManager.GetBuffersRTI()[2] : TextureXR.GetBlackTexture();
cmd.SetComputeTextureParam(reflectionShaderCS, currentKernel, HDShaderIDs._SsrClearCoatMaskTexture, clearCoatMaskTexture);
cmd.SetComputeIntParam(reflectionShaderCS, HDShaderIDs._SsrStencilBit, (int)StencilUsage.TraceReflectionRay);
cmd.SetComputeTextureParam(reflectionShaderCS, currentKernel, HDShaderIDs._StencilTexture, m_SharedRTManager.GetDepthStencilBuffer(), 0, RenderTextureSubElement.Stencil);
// Bind all the required scalars
m_ShaderVariablesRayTracingCB._RaytracingIntensityClamp = settings.clampValue.value;
m_ShaderVariablesRayTracingCB._RaytracingIncludeSky = settings.reflectSky.value ? 1 : 0;
ConstantBuffer.PushGlobal(cmd, m_ShaderVariablesRayTracingCB, HDShaderIDs._ShaderVariablesRaytracing);
// Bind the output buffers
cmd.SetComputeTextureParam(reflectionShaderCS, currentKernel, HDShaderIDs._RaytracingDirectionBuffer, intermediateBuffer1);
if (settings.fullResolution.value)
{
// Evaluate the dispatch parameters
numTilesXHR = (texWidth + (areaTileSize - 1)) / areaTileSize;
numTilesYHR = (texHeight + (areaTileSize - 1)) / areaTileSize;
}
else
{
// Evaluate the dispatch parameters
numTilesXHR = (texWidth / 2 + (areaTileSize - 1)) / areaTileSize;
numTilesYHR = (texHeight / 2 + (areaTileSize - 1)) / areaTileSize;
}
// Compute the directions
cmd.DispatchCompute(reflectionShaderCS, currentKernel, numTilesXHR, numTilesYHR, hdCamera.viewCount);
// Prepare the components for the deferred lighting
DeferredLightingRTParameters deferredParamters = PrepareReflectionDeferredLightingRTParameters(hdCamera);
DeferredLightingRTResources deferredResources = PrepareDeferredLightingRTResources(hdCamera, intermediateBuffer1, intermediateBuffer0);
// Evaluate the deferred lighting
RenderRaytracingDeferredLighting(cmd, deferredParamters, deferredResources);
// Fetch the right filter to use
if (settings.fullResolution.value)
{
currentKernel = reflectionFilter.FindKernel("ReflectionIntegrationUpscaleFullRes");
}
else
{
currentKernel = reflectionFilter.FindKernel("ReflectionIntegrationUpscaleHalfRes");
}
// Inject all the parameters for the compute
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._SsrLightingTextureRW, intermediateBuffer0);
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._SsrHitPointTexture, intermediateBuffer1);
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthStencilBuffer());
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._NormalBufferTexture, m_SharedRTManager.GetNormalBuffer());
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._BlueNoiseTexture, blueNoise.textureArray16RGB);
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, "_RaytracingReflectionTexture", outputTexture);
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._ScramblingTexture, m_Asset.renderPipelineResources.textures.scramblingTex);
cmd.SetComputeIntParam(reflectionFilter, HDShaderIDs._SpatialFilterRadius, settings.upscaleRadius.value);
cmd.SetComputeIntParam(reflectionFilter, HDShaderIDs._RaytracingDenoiseRadius, settings.denoise.value ? settings.denoiserRadius.value : 0);
numTilesXHR = (texWidth + (areaTileSize - 1)) / areaTileSize;
numTilesYHR = (texHeight + (areaTileSize - 1)) / areaTileSize;
// Bind the right texture for clear coat support
clearCoatMaskTexture = hdCamera.frameSettings.litShaderMode == LitShaderMode.Deferred ? m_GbufferManager.GetBuffersRTI()[2] : TextureXR.GetBlackTexture();
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._SsrClearCoatMaskTexture, clearCoatMaskTexture);
// Compute the texture
cmd.DispatchCompute(reflectionFilter, currentKernel, numTilesXHR, numTilesYHR, hdCamera.viewCount);
}
using (new ProfilingScope(cmd, ProfilingSampler.Get(HDProfileId.RaytracingFilterReflection)))
{
if (settings.denoise.value && !transparent)
{
// Grab the history buffer
RTHandle reflectionHistory = hdCamera.GetCurrentFrameRT((int)HDCameraFrameHistoryType.RaytracedReflection)
?? hdCamera.AllocHistoryFrameRT((int)HDCameraFrameHistoryType.RaytracedReflection, ReflectionHistoryBufferAllocatorFunction, 1);
float historyValidity = 1.0f;
#if UNITY_HDRP_DXR_TESTS_DEFINE
if (Application.isPlaying)
{
historyValidity = 0.0f;
}
else
#endif
// We need to check if something invalidated the history buffers
historyValidity *= ValidRayTracingHistory(hdCamera) ? 1.0f : 0.0f;
HDReflectionDenoiser reflectionDenoiser = GetReflectionDenoiser();
reflectionDenoiser.DenoiseBuffer(cmd, hdCamera, settings.denoiserRadius.value, outputTexture, reflectionHistory, intermediateBuffer0, historyValidity: historyValidity);
HDUtils.BlitCameraTexture(cmd, intermediateBuffer0, outputTexture);
}
}
}
