TextureHandle DenoiseSSGI(RenderGraph renderGraph, HDCamera hdCamera, TextureHandle rtGIBuffer, TextureHandle depthPyramid, TextureHandle normalBuffer, TextureHandle motionVectorBuffer, TextureHandle historyValidationTexture)
{
var giSettings = hdCamera.volumeStack.GetComponent <GlobalIllumination>();
if (giSettings.denoiseSS)
{
// Evaluate the history's validity
float historyValidity0 = EvaluateIndirectDiffuseHistoryValidity0(hdCamera, true, false);
HDTemporalFilter temporalFilter = GetTemporalFilter();
HDDiffuseDenoiser diffuseDenoiser = GetDiffuseDenoiser();
// Run the temporal denoiser
TextureHandle historyBufferHF = renderGraph.ImportTexture(RequestIndirectDiffuseHistoryTextureHF(hdCamera));
HDTemporalFilter.TemporalFilterParameters filterParams;
filterParams.singleChannel = false;
filterParams.historyValidity = historyValidity0;
filterParams.occluderMotionRejection = false;
filterParams.receiverMotionRejection = false;
filterParams.exposureControl = 1.0f;
TextureHandle denoisedRTGI = temporalFilter.Denoise(renderGraph, hdCamera, filterParams, rtGIBuffer, renderGraph.defaultResources.blackTextureXR, historyBufferHF, depthPyramid, normalBuffer, motionVectorBuffer, historyValidationTexture);
// Apply the diffuse denoiser
rtGIBuffer = diffuseDenoiser.Denoise(renderGraph, hdCamera, singleChannel: false, kernelSize: giSettings.denoiserRadiusSS, halfResolutionFilter: giSettings.halfResolutionDenoiserSS, jitterFilter: giSettings.secondDenoiserPassSS, denoisedRTGI, depthPyramid, normalBuffer, rtGIBuffer);
// If the second pass is requested, do it otherwise blit
if (giSettings.secondDenoiserPassSS)
{
float historyValidity1 = EvaluateIndirectDiffuseHistoryValidity1(hdCamera, true, false);
// Run the temporal denoiser
TextureHandle historyBufferLF = renderGraph.ImportTexture(RequestIndirectDiffuseHistoryTextureLF(hdCamera));
filterParams.singleChannel = false;
filterParams.historyValidity = historyValidity1;
filterParams.occluderMotionRejection = false;
filterParams.receiverMotionRejection = false;
filterParams.exposureControl = 1.0f;
denoisedRTGI = temporalFilter.Denoise(renderGraph, hdCamera, filterParams, rtGIBuffer, renderGraph.defaultResources.blackTextureXR, historyBufferLF, depthPyramid, normalBuffer, motionVectorBuffer, historyValidationTexture);
// Apply the diffuse denoiser
rtGIBuffer = diffuseDenoiser.Denoise(renderGraph, hdCamera, singleChannel: false, kernelSize: giSettings.denoiserRadiusSS * 0.5f, halfResolutionFilter: giSettings.halfResolutionDenoiserSS, jitterFilter: false, denoisedRTGI, depthPyramid, normalBuffer, rtGIBuffer);
// Propagate the history validity for the second buffer
PropagateIndirectDiffuseHistoryValidity1(hdCamera, true, false);
}
// Propagate the history validity for the first buffer
PropagateIndirectDiffuseHistoryValidity0(hdCamera, true, false);
return(rtGIBuffer);
}
else
{
return(rtGIBuffer);
}
}
TextureHandle DenoiseRTSSS(RenderGraph renderGraph, HDCamera hdCamera, TextureHandle rayTracedSSS, TextureHandle depthPyramid, TextureHandle normalBuffer, TextureHandle motionVectorBuffer)
{
// Evaluate the history's validity
float historyValidity = HDRenderPipeline.EvaluateHistoryValidity(hdCamera);
// Run the temporal denoiser
HDTemporalFilter temporalFilter = GetTemporalFilter();
TemporalFilterParameters tfParameters = temporalFilter.PrepareTemporalFilterParameters(hdCamera, false, historyValidity);
TextureHandle historyBuffer = renderGraph.ImportTexture(RequestRayTracedSSSHistoryTexture(hdCamera));
return(temporalFilter.Denoise(renderGraph, hdCamera, tfParameters, rayTracedSSS, historyBuffer, depthPyramid, normalBuffer, motionVectorBuffer));
}
