internal ReflectionDenoiserParameters PrepareReflectionDenoiserParameters(HDCamera hdCamera, float historyValidity, int maxKernelSize)
{
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;
// 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);
}
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.depthStencilBuffer);
cmd.SetComputeTextureParam(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.temporalAccumulationKernel, HDShaderIDs._NormalBufferTexture, reflDenoiserResources.normalBuffer);
cmd.SetComputeTextureParam(reflDenoiserParameters.reflectionDenoiserCS, reflDenoiserParameters.temporalAccumulationKernel, HDShaderIDs._DenoiseOutputTextureRW, reflDenoiserResources.intermediateBuffer0);
cmd.SetComputeFloatParam(reflDenoiserParameters.reflectionDenoiserCS, HDShaderIDs._HistoryValidity, reflDenoiserParameters.historyValidity);
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.depthStencilBuffer);
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.depthStencilBuffer);
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);
}
