void RenderReflectionsQuality(HDCamera hdCamera, CommandBuffer cmd, RTHandle outputTexture, ScriptableRenderContext renderContext, int frameCount, bool transparent)
{
// Request the buffers we shall be using
RTHandle intermediateBuffer0 = GetRayTracingBuffer(InternalRayTracingBuffers.RGBA0);
RTHandle intermediateBuffer1 = GetRayTracingBuffer(InternalRayTracingBuffers.RGBA1);
var settings = hdCamera.volumeStack.GetComponent <ScreenSpaceReflection>();
LightCluster lightClusterSettings = hdCamera.volumeStack.GetComponent <LightCluster>();
// Do the integration
RTRQualityRenderingParameters rtrQRenderingParameters = PrepareRTRQualityRenderingParameters(hdCamera, settings, transparent);
RTRQualityRenderingResources rtrQRenderingResources = PrepareRTRQualityRenderingResources(hdCamera, outputTexture);
using (new ProfilingScope(cmd, ProfilingSampler.Get(HDProfileId.RaytracingReflectionEvaluation)))
{
RenderQualityRayTracedReflections(cmd, rtrQRenderingParameters, rtrQRenderingResources);
}
using (new ProfilingScope(cmd, ProfilingSampler.Get(HDProfileId.RaytracingFilterReflection)))
{
if (settings.denoise && !transparent)
{
// Grab the history buffer
RTHandle reflectionHistory = hdCamera.GetCurrentFrameRT((int)HDCameraFrameHistoryType.RaytracedReflection)
?? hdCamera.AllocHistoryFrameRT((int)HDCameraFrameHistoryType.RaytracedReflection, ReflectionHistoryBufferAllocatorFunction, 1);
// Prepare the parameters and the resources
HDReflectionDenoiser reflectionDenoiser = GetReflectionDenoiser();
ReflectionDenoiserParameters reflDenoiserParameters = reflectionDenoiser.PrepareReflectionDenoiserParameters(hdCamera, EvaluateHistoryValidity(hdCamera), settings.denoiserRadius, rtrQRenderingParameters.bounceCount == 1);
ReflectionDenoiserResources reflectionDenoiserResources = reflectionDenoiser.PrepareReflectionDenoiserResources(hdCamera, outputTexture, reflectionHistory,
intermediateBuffer0, intermediateBuffer1);
HDReflectionDenoiser.DenoiseBuffer(cmd, reflDenoiserParameters, reflectionDenoiserResources);
}
}
}
internal ReflectionDenoiserParameters PrepareReflectionDenoiserParameters(HDCamera hdCamera, float historyValidity, int maxKernelSize, bool singleReflectionBounce)
{
ReflectionDenoiserParameters reflDenoiserParams = new ReflectionDenoiserParameters();
// Camera parameters
reflDenoiserParams.texWidth = hdCamera.actualWidth;
reflDenoiserParams.texHeight = hdCamera.actualHeight;
reflDenoiserParams.viewCount = hdCamera.viewCount;
// De-noising parameters
reflDenoiserParams.historyValidity = historyValidity;
reflDenoiserParams.maxKernelSize = maxKernelSize;
reflDenoiserParams.singleReflectionBounce = singleReflectionBounce ? 1 : 0;
// Kernels
reflDenoiserParams.temporalAccumulationKernel = s_TemporalAccumulationKernel;
reflDenoiserParams.copyHistoryKernel = s_CopyHistoryKernel;
reflDenoiserParams.bilateralFilterHKernel = s_BilateralFilterHKernel;
reflDenoiserParams.bilateralFilterVKernel = s_BilateralFilterVKernel;
// Other parameters
reflDenoiserParams.reflectionFilterMapping = m_ReflectionFilterMapping;
reflDenoiserParams.reflectionDenoiserCS = m_ReflectionDenoiserCS;
return(reflDenoiserParams);
}
internal ReflectionDenoiserParameters PrepareReflectionDenoiserParameters(HDCamera hdCamera, float historyValidity, int maxKernelSize, bool fullResolution, bool singleReflectionBounce, bool affectSmoothSurfaces)
{
ReflectionDenoiserParameters reflDenoiserParams = new ReflectionDenoiserParameters();
// Camera parameters
reflDenoiserParams.texWidth = fullResolution ? hdCamera.actualWidth : (hdCamera.actualWidth / 2);
reflDenoiserParams.texHeight = fullResolution ? hdCamera.actualHeight : (hdCamera.actualHeight / 2);
reflDenoiserParams.viewCount = hdCamera.viewCount;
// De-noising parameters
reflDenoiserParams.historyValidity = historyValidity;
reflDenoiserParams.maxKernelSize = fullResolution ? maxKernelSize : maxKernelSize / 2;
reflDenoiserParams.historyBufferSize = new Vector2(1.0f / (float)hdCamera.historyRTHandleProperties.currentRenderTargetSize.x, 1.0f / (float)hdCamera.historyRTHandleProperties.currentRenderTargetSize.y);
reflDenoiserParams.currentEffectResolution = new Vector4(reflDenoiserParams.texWidth, reflDenoiserParams.texHeight, 1.0f / (float)reflDenoiserParams.texWidth, 1.0f / (float)reflDenoiserParams.texHeight);
reflDenoiserParams.pixelSpreadTangent = HDRenderPipeline.GetPixelSpreadTangent(hdCamera.camera.fieldOfView, reflDenoiserParams.texWidth, reflDenoiserParams.texHeight);
reflDenoiserParams.affectSmoothSurfaces = affectSmoothSurfaces ? 1 : 0;
reflDenoiserParams.singleReflectionBounce = singleReflectionBounce ? 1 : 0;
// Other parameters
reflDenoiserParams.reflectionDenoiserCS = m_ReflectionDenoiserCS;
reflDenoiserParams.temporalAccumulationKernel = fullResolution ? s_TemporalAccumulationFullResKernel : s_TemporalAccumulationHalfResKernel;
reflDenoiserParams.copyHistoryKernel = s_CopyHistoryKernel;
reflDenoiserParams.bilateralFilterHKernel = fullResolution ? s_BilateralFilterH_FRKernel : s_BilateralFilterH_HRKernel;
reflDenoiserParams.bilateralFilterVKernel = fullResolution ? s_BilateralFilterV_FRKernel : s_BilateralFilterV_HRKernel;
reflDenoiserParams.reflectionFilterMapping = m_ReflectionFilterMapping;
return(reflDenoiserParams);
}
void RenderReflectionsPerformance(HDCamera hdCamera, CommandBuffer cmd, RTHandle outputTexture, ScriptableRenderContext renderContext, int frameCount, bool transparent)
{
// Fetch the required resources
RTHandle intermediateBuffer0 = GetRayTracingBuffer(InternalRayTracingBuffers.RGBA0);
RTHandle intermediateBuffer1 = GetRayTracingBuffer(InternalRayTracingBuffers.RGBA1);
// Fetch all the settings
ScreenSpaceReflection settings = hdCamera.volumeStack.GetComponent <ScreenSpaceReflection>();
// Generate the signal
using (new ProfilingScope(cmd, ProfilingSampler.Get(HDProfileId.RaytracingReflectionDirectionGeneration)))
{
// Prepare the components for the direction generation
RTReflectionDirGenParameters rtrDirGenParameters = PrepareRTReflectionDirGenParameters(hdCamera, transparent, settings);
RTReflectionDirGenResources rtrDirGenResousources = PrepareRTReflectionDirGenResources(hdCamera, intermediateBuffer1);
RTReflectionDirectionGeneration(cmd, rtrDirGenParameters, rtrDirGenResousources);
}
using (new ProfilingScope(cmd, ProfilingSampler.Get(HDProfileId.RaytracingReflectionEvaluation)))
{
// Prepare the components for the deferred lighting
DeferredLightingRTParameters deferredParamters = PrepareReflectionDeferredLightingRTParameters(hdCamera);
DeferredLightingRTResources deferredResources = PrepareDeferredLightingRTResources(hdCamera, intermediateBuffer1, intermediateBuffer0);
RenderRaytracingDeferredLighting(cmd, deferredParamters, deferredResources);
}
using (new ProfilingScope(cmd, ProfilingSampler.Get(HDProfileId.RaytracingReflectionUpscaleGeneration)))
{
// Prepare the parameters for the upscale pass
RTReflectionUpscaleParameters rtrUpscaleParameters = PrepareRTReflectionUpscaleParameters(hdCamera, settings);
RTReflectionUpscaleResources rtrUpscaleResources = PrepareRTReflectionUpscaleResources(hdCamera, intermediateBuffer0, intermediateBuffer1, outputTexture);
UpscaleRTReflections(cmd, rtrUpscaleParameters, rtrUpscaleResources);
}
// Denoise if required
if (settings.denoise && !transparent)
{
using (new ProfilingScope(cmd, ProfilingSampler.Get(HDProfileId.RaytracingFilterReflection)))
{
// Grab the history buffer
RTHandle reflectionHistory = hdCamera.GetCurrentFrameRT((int)HDCameraFrameHistoryType.RaytracedReflection)
?? hdCamera.AllocHistoryFrameRT((int)HDCameraFrameHistoryType.RaytracedReflection, ReflectionHistoryBufferAllocatorFunction, 1);
// Prepare the parameters and the resources
HDReflectionDenoiser reflectionDenoiser = GetReflectionDenoiser();
ReflectionDenoiserParameters reflDenoiserParameters = reflectionDenoiser.PrepareReflectionDenoiserParameters(hdCamera, EvaluateHistoryValidity(hdCamera), settings.denoiserRadius);
ReflectionDenoiserResources reflectionDenoiserResources = reflectionDenoiser.PrepareReflectionDenoiserResources(hdCamera, outputTexture, reflectionHistory,
intermediateBuffer0, intermediateBuffer1);
// Denoise
HDReflectionDenoiser.DenoiseBuffer(cmd, reflDenoiserParameters, reflectionDenoiserResources);
}
}
}
public static void DenoiseBuffer(CommandBuffer cmd, ReflectionDenoiserParameters parameters, ReflectionDenoiserResources reflDenoiserResources)
{
// Evaluate the dispatch parameters
int tileSize = 8;
int numTilesX = (parameters.texWidth + (tileSize - 1)) / tileSize;
int numTilesY = (parameters.texHeight + (tileSize - 1)) / tileSize;
// Input data
cmd.SetComputeFloatParam(parameters.reflectionDenoiserCS, HDShaderIDs._HistoryValidity, parameters.historyValidity);
cmd.SetComputeFloatParam(parameters.reflectionDenoiserCS, HDShaderIDs._PixelSpreadAngleTangent, parameters.pixelSpreadTangent);
cmd.SetComputeVectorParam(parameters.reflectionDenoiserCS, HDShaderIDs._HistoryBufferSize, parameters.historyBufferSize);
cmd.SetComputeVectorParam(parameters.reflectionDenoiserCS, HDShaderIDs._CurrentEffectResolution, parameters.currentEffectResolution);
cmd.SetComputeIntParam(parameters.reflectionDenoiserCS, HDShaderIDs._AffectSmoothSurfaces, parameters.affectSmoothSurfaces);
cmd.SetComputeIntParam(parameters.reflectionDenoiserCS, HDShaderIDs._SingleReflectionBounce, parameters.singleReflectionBounce);
cmd.SetComputeTextureParam(parameters.reflectionDenoiserCS, parameters.temporalAccumulationKernel, HDShaderIDs._DenoiseInputTexture, reflDenoiserResources.noisyToOutputSignal);
cmd.SetComputeTextureParam(parameters.reflectionDenoiserCS, parameters.temporalAccumulationKernel, HDShaderIDs._DepthTexture, reflDenoiserResources.depthBuffer);
cmd.SetComputeTextureParam(parameters.reflectionDenoiserCS, parameters.temporalAccumulationKernel, HDShaderIDs._HistoryDepthTexture, reflDenoiserResources.historyDepth);
cmd.SetComputeTextureParam(parameters.reflectionDenoiserCS, parameters.temporalAccumulationKernel, HDShaderIDs._NormalBufferTexture, reflDenoiserResources.normalBuffer);
cmd.SetComputeTextureParam(parameters.reflectionDenoiserCS, parameters.temporalAccumulationKernel, HDShaderIDs._CameraMotionVectorsTexture, reflDenoiserResources.motionVectorBuffer);
cmd.SetComputeTextureParam(parameters.reflectionDenoiserCS, parameters.temporalAccumulationKernel, HDShaderIDs._HistoryBuffer, reflDenoiserResources.historySignal);
// Output texture
cmd.SetComputeTextureParam(parameters.reflectionDenoiserCS, parameters.temporalAccumulationKernel, HDShaderIDs._DenoiseOutputTextureRW, reflDenoiserResources.intermediateBuffer0);
cmd.SetComputeTextureParam(parameters.reflectionDenoiserCS, parameters.temporalAccumulationKernel, HDShaderIDs._SampleCountTextureRW, reflDenoiserResources.intermediateBuffer1);
// Do the temporal accumulation
cmd.DispatchCompute(parameters.reflectionDenoiserCS, parameters.temporalAccumulationKernel, numTilesX, numTilesY, parameters.viewCount);
// Copy the accumulated signal into the history buffer
cmd.SetComputeTextureParam(parameters.reflectionDenoiserCS, parameters.copyHistoryKernel, HDShaderIDs._DenoiseInputTexture, reflDenoiserResources.intermediateBuffer0);
cmd.SetComputeTextureParam(parameters.reflectionDenoiserCS, parameters.copyHistoryKernel, HDShaderIDs._DenoiseOutputTextureRW, reflDenoiserResources.historySignal);
cmd.SetComputeTextureParam(parameters.reflectionDenoiserCS, parameters.copyHistoryKernel, HDShaderIDs._SampleCountTextureRW, reflDenoiserResources.intermediateBuffer1);
cmd.DispatchCompute(parameters.reflectionDenoiserCS, parameters.copyHistoryKernel, numTilesX, numTilesY, parameters.viewCount);
// Horizontal pass of the bilateral filter
cmd.SetComputeIntParam(parameters.reflectionDenoiserCS, HDShaderIDs._DenoiserFilterRadius, parameters.maxKernelSize);
cmd.SetComputeTextureParam(parameters.reflectionDenoiserCS, parameters.bilateralFilterHKernel, HDShaderIDs._DenoiseInputTexture, reflDenoiserResources.intermediateBuffer0);
cmd.SetComputeTextureParam(parameters.reflectionDenoiserCS, parameters.bilateralFilterHKernel, HDShaderIDs._DepthTexture, reflDenoiserResources.depthBuffer);
cmd.SetComputeTextureParam(parameters.reflectionDenoiserCS, parameters.bilateralFilterHKernel, HDShaderIDs._NormalBufferTexture, reflDenoiserResources.normalBuffer);
cmd.SetComputeTextureParam(parameters.reflectionDenoiserCS, parameters.bilateralFilterHKernel, HDShaderIDs._DenoiseOutputTextureRW, reflDenoiserResources.intermediateBuffer1);
cmd.SetComputeTextureParam(parameters.reflectionDenoiserCS, parameters.bilateralFilterHKernel, HDShaderIDs._ReflectionFilterMapping, parameters.reflectionFilterMapping);
cmd.DispatchCompute(parameters.reflectionDenoiserCS, parameters.bilateralFilterHKernel, numTilesX, numTilesY, parameters.viewCount);
// Horizontal pass of the bilateral filter
cmd.SetComputeIntParam(parameters.reflectionDenoiserCS, HDShaderIDs._DenoiserFilterRadius, parameters.maxKernelSize);
cmd.SetComputeTextureParam(parameters.reflectionDenoiserCS, parameters.bilateralFilterVKernel, HDShaderIDs._DenoiseInputTexture, reflDenoiserResources.intermediateBuffer1);
cmd.SetComputeTextureParam(parameters.reflectionDenoiserCS, parameters.bilateralFilterVKernel, HDShaderIDs._DepthTexture, reflDenoiserResources.depthBuffer);
cmd.SetComputeTextureParam(parameters.reflectionDenoiserCS, parameters.bilateralFilterVKernel, HDShaderIDs._NormalBufferTexture, reflDenoiserResources.normalBuffer);
cmd.SetComputeTextureParam(parameters.reflectionDenoiserCS, parameters.bilateralFilterVKernel, HDShaderIDs._DenoiseOutputTextureRW, reflDenoiserResources.noisyToOutputSignal);
cmd.SetComputeTextureParam(parameters.reflectionDenoiserCS, parameters.bilateralFilterVKernel, HDShaderIDs._ReflectionFilterMapping, parameters.reflectionFilterMapping);
cmd.DispatchCompute(parameters.reflectionDenoiserCS, parameters.bilateralFilterVKernel, numTilesX, numTilesY, parameters.viewCount);
}
TextureHandle DenoiseReflection(RenderGraph renderGraph, HDCamera hdCamera, bool fullResolution, int denoiserRadius, bool singleReflectionBounce, bool affectSmoothSurfaces,
TextureHandle input, TextureHandle depthPyramid, TextureHandle normalBuffer, TextureHandle motionVectors, TextureHandle clearCoatTexture)
{
// Prepare the parameters and the resources
HDReflectionDenoiser reflectionDenoiser = GetReflectionDenoiser();
float historyValidity = EvaluateRayTracedReflectionHistoryValidity(hdCamera, fullResolution, true);
ReflectionDenoiserParameters reflDenoiserParameters = reflectionDenoiser.PrepareReflectionDenoiserParameters(hdCamera, historyValidity, denoiserRadius, fullResolution, singleReflectionBounce, affectSmoothSurfaces);
RTHandle historySignal = RequestRayTracedReflectionsHistoryTexture(hdCamera);
var rtrResult = reflectionDenoiser.DenoiseRTR(renderGraph, in reflDenoiserParameters, hdCamera, depthPyramid, normalBuffer, motionVectors, clearCoatTexture, input, historySignal);
PropagateRayTracedReflectionsHistoryValidity(hdCamera, fullResolution, true);
return(rtrResult);
}
public static void DenoiseBuffer(CommandBuffer cmd, ReflectionDenoiserParameters reflDenoiserParameters, ReflectionDenoiserResources reflDenoiserResources)
{
// Evaluate the dispatch parameters
int tileSize = 8;
int numTilesX = (reflDenoiserParameters.texWidth + (tileSize - 1)) / tileSize;
int numTilesY = (reflDenoiserParameters.texHeight + (tileSize - 1)) / tileSize;
// Apply a vectorized temporal filtering pass and store it back in the denoisebuffer0 with the analytic value in the third channel
cmd.SetComputeTextureParam(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.temporalAccumulationKernel, HDShaderIDs._DenoiseInputTexture, reflDenoiserResources.noisyToOutputSignal);
cmd.SetComputeTextureParam(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.temporalAccumulationKernel, HDShaderIDs._HistoryBuffer, reflDenoiserResources.historySignal);
cmd.SetComputeTextureParam(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.temporalAccumulationKernel, HDShaderIDs._DepthTexture, reflDenoiserResources.depthBuffer);
cmd.SetComputeTextureParam(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.temporalAccumulationKernel, HDShaderIDs._CameraDepthTexture, reflDenoiserResources.depthBuffer);
cmd.SetComputeTextureParam(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.temporalAccumulationKernel, HDShaderIDs._NormalBufferTexture, reflDenoiserResources.normalBuffer);
cmd.SetComputeTextureParam(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.temporalAccumulationKernel, HDShaderIDs._DenoiseOutputTextureRW, reflDenoiserResources.intermediateBuffer0);
cmd.SetComputeTextureParam(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.temporalAccumulationKernel, HDShaderIDs._CameraMotionVectorsTexture, reflDenoiserResources.motionVectorBuffer);
cmd.SetComputeFloatParam(reflDenoiserParameters.reflectionDenoiserCS, HDShaderIDs._HistoryValidity, reflDenoiserParameters.historyValidity);
cmd.SetComputeIntParam(reflDenoiserParameters.reflectionDenoiserCS, HDShaderIDs._SingleReflectionBounce, reflDenoiserParameters.singleReflectionBounce);
cmd.DispatchCompute(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.temporalAccumulationKernel, numTilesX, numTilesY, reflDenoiserParameters.viewCount);
cmd.SetComputeTextureParam(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.copyHistoryKernel, HDShaderIDs._DenoiseInputTexture, reflDenoiserResources.intermediateBuffer0);
cmd.SetComputeTextureParam(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.copyHistoryKernel, HDShaderIDs._DenoiseOutputTextureRW, reflDenoiserResources.historySignal);
cmd.DispatchCompute(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.copyHistoryKernel, numTilesX, numTilesY, reflDenoiserParameters.viewCount);
// Horizontal pass of the bilateral filter
cmd.SetComputeIntParam(reflDenoiserParameters.reflectionDenoiserCS, HDShaderIDs._DenoiserFilterRadius, reflDenoiserParameters.maxKernelSize);
cmd.SetComputeTextureParam(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.bilateralFilterHKernel, HDShaderIDs._DenoiseInputTexture, reflDenoiserResources.intermediateBuffer0);
cmd.SetComputeTextureParam(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.bilateralFilterHKernel, HDShaderIDs._DepthTexture, reflDenoiserResources.depthBuffer);
cmd.SetComputeTextureParam(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.bilateralFilterHKernel, HDShaderIDs._NormalBufferTexture, reflDenoiserResources.normalBuffer);
cmd.SetComputeTextureParam(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.bilateralFilterHKernel, HDShaderIDs._DenoiseOutputTextureRW, reflDenoiserResources.intermediateBuffer1);
cmd.SetComputeTextureParam(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.bilateralFilterHKernel, HDShaderIDs._ReflectionFilterMapping, reflDenoiserParameters.reflectionFilterMapping);
cmd.DispatchCompute(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.bilateralFilterHKernel, numTilesX, numTilesY, reflDenoiserParameters.viewCount);
// Horizontal pass of the bilateral filter
cmd.SetComputeIntParam(reflDenoiserParameters.reflectionDenoiserCS, HDShaderIDs._DenoiserFilterRadius, reflDenoiserParameters.maxKernelSize);
cmd.SetComputeTextureParam(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.bilateralFilterVKernel, HDShaderIDs._DenoiseInputTexture, reflDenoiserResources.intermediateBuffer1);
cmd.SetComputeTextureParam(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.bilateralFilterVKernel, HDShaderIDs._DepthTexture, reflDenoiserResources.depthBuffer);
cmd.SetComputeTextureParam(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.bilateralFilterVKernel, HDShaderIDs._NormalBufferTexture, reflDenoiserResources.normalBuffer);
cmd.SetComputeTextureParam(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.bilateralFilterVKernel, HDShaderIDs._DenoiseOutputTextureRW, reflDenoiserResources.noisyToOutputSignal);
cmd.SetComputeTextureParam(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.bilateralFilterVKernel, HDShaderIDs._ReflectionFilterMapping, reflDenoiserParameters.reflectionFilterMapping);
cmd.DispatchCompute(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.bilateralFilterVKernel, numTilesX, numTilesY, reflDenoiserParameters.viewCount);
}