public void DenoiseBufferDirectional(CommandBuffer cmd, HDCamera hdCamera,
RTHandle noisyBuffer, RTHandle distanceBuffer, RTHandle outputBuffer,
int kernelSize, float angularDiameter, bool singleChannel = true)
{
// Request the intermediate buffer we need
RTHandle intermediateBuffer = m_RenderPipeline.GetRayTracingBuffer(InternalRayTracingBuffers.RGBA3);
DiffuseShadowDirectionalDenoiserParameters dsddParams = PrepareDiffuseShadowDirectionalDenoiserParameters(hdCamera, angularDiameter, kernelSize, singleChannel);
DiffuseShadowDirectionalDenoiserResources dsddResources = PrepareDiffuseShadowDirectionalDenoiserResources(distanceBuffer, noisyBuffer, intermediateBuffer, outputBuffer);
ExecuteDiffuseShadowDirectionalDenoiser(cmd, dsddParams, dsddResources);
}
DiffuseShadowDirectionalDenoiserResources PrepareDiffuseShadowDirectionalDenoiserResources(RTHandle distanceBuffer, RTHandle noisyBuffer, RTHandle intermediateBuffer, RTHandle outputBuffer)
{
DiffuseShadowDirectionalDenoiserResources dsddResources = new DiffuseShadowDirectionalDenoiserResources();
dsddResources.depthStencilBuffer = m_SharedRTManager.GetDepthStencilBuffer();
dsddResources.normalBuffer = m_SharedRTManager.GetNormalBuffer();
dsddResources.distanceBuffer = distanceBuffer;
dsddResources.noisyBuffer = noisyBuffer;
dsddResources.intermediateBuffer = intermediateBuffer;
dsddResources.outputBuffer = outputBuffer;
return(dsddResources);
}
public TextureHandle DenoiseBufferDirectional(RenderGraph renderGraph, HDCamera hdCamera,
TextureHandle depthBuffer, TextureHandle normalBuffer,
TextureHandle noisyBuffer, TextureHandle distanceBuffer,
int kernelSize, float angularDiameter, bool singleChannel = true)
{
using (var builder = renderGraph.AddRenderPass <DiffuseShadowDenoiserDirectionalPassData>("TemporalDenoiser", out var passData, ProfilingSampler.Get(HDProfileId.DiffuseFilter)))
{
// Cannot run in async
builder.EnableAsyncCompute(false);
// Fetch all the resources
passData.parameters = PrepareDiffuseShadowDirectionalDenoiserParameters(hdCamera, angularDiameter, kernelSize, singleChannel);
// Input buffers
passData.depthStencilBuffer = builder.UseDepthBuffer(depthBuffer, DepthAccess.Read);
passData.normalBuffer = builder.ReadTexture(normalBuffer);
passData.distanceBuffer = builder.ReadTexture(distanceBuffer);
passData.noisyBuffer = builder.ReadTexture(noisyBuffer);
// Temporary buffers
passData.intermediateBuffer = builder.CreateTransientTexture(new TextureDesc(Vector2.one, true, true)
{
colorFormat = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "Intermediate buffer"
});
// Output buffer
passData.outputBuffer = builder.ReadWriteTexture(renderGraph.CreateTexture(new TextureDesc(Vector2.one, true, true)
{
colorFormat = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "Denoised Buffer"
}));
builder.SetRenderFunc(
(DiffuseShadowDenoiserDirectionalPassData data, RenderGraphContext ctx) =>
{
DiffuseShadowDirectionalDenoiserResources resources = new DiffuseShadowDirectionalDenoiserResources();
resources.depthStencilBuffer = data.depthStencilBuffer;
resources.normalBuffer = data.normalBuffer;
resources.distanceBuffer = data.distanceBuffer;
resources.noisyBuffer = data.noisyBuffer;
resources.intermediateBuffer = data.intermediateBuffer;
resources.outputBuffer = data.outputBuffer;
ExecuteDiffuseShadowDirectionalDenoiser(ctx.cmd, data.parameters, resources);
});
return(passData.outputBuffer);
}
}
static void ExecuteDiffuseShadowDirectionalDenoiser(CommandBuffer cmd, DiffuseShadowDirectionalDenoiserParameters dsddParams, DiffuseShadowDirectionalDenoiserResources dsddResources)
{
// Evaluate the dispatch parameters
int denoiserTileSize = 8;
int numTilesX = (dsddParams.texWidth + (denoiserTileSize - 1)) / denoiserTileSize;
int numTilesY = (dsddParams.texHeight + (denoiserTileSize - 1)) / denoiserTileSize;
// Bind input uniforms
cmd.SetComputeFloatParam(dsddParams.diffuseShadowDenoiserCS, HDShaderIDs._DirectionalLightAngle, dsddParams.lightAngle);
cmd.SetComputeIntParam(dsddParams.diffuseShadowDenoiserCS, HDShaderIDs._DenoiserFilterRadius, dsddParams.kernelSize);
cmd.SetComputeFloatParam(dsddParams.diffuseShadowDenoiserCS, HDShaderIDs._CameraFOV, dsddParams.cameraFov);
// Bind Input Textures
cmd.SetComputeTextureParam(dsddParams.diffuseShadowDenoiserCS, dsddParams.bilateralHKernel, HDShaderIDs._DepthTexture, dsddResources.depthStencilBuffer);
cmd.SetComputeTextureParam(dsddParams.diffuseShadowDenoiserCS, dsddParams.bilateralHKernel, HDShaderIDs._NormalBufferTexture, dsddResources.normalBuffer);
cmd.SetComputeTextureParam(dsddParams.diffuseShadowDenoiserCS, dsddParams.bilateralHKernel, HDShaderIDs._DenoiseInputTexture, dsddResources.noisyBuffer);
cmd.SetComputeTextureParam(dsddParams.diffuseShadowDenoiserCS, dsddParams.bilateralHKernel, HDShaderIDs._DistanceTexture, dsddResources.distanceBuffer);
// Bind output textures
cmd.SetComputeTextureParam(dsddParams.diffuseShadowDenoiserCS, dsddParams.bilateralHKernel, HDShaderIDs._DenoiseOutputTextureRW, dsddResources.intermediateBuffer);
// Do the Horizontal pass
cmd.DispatchCompute(dsddParams.diffuseShadowDenoiserCS, dsddParams.bilateralHKernel, numTilesX, numTilesY, dsddParams.viewCount);
// Bind input uniforms
cmd.SetComputeIntParam(dsddParams.diffuseShadowDenoiserCS, HDShaderIDs._DenoiserFilterRadius, dsddParams.kernelSize);
cmd.SetComputeFloatParam(dsddParams.diffuseShadowDenoiserCS, HDShaderIDs._DirectionalLightAngle, dsddParams.lightAngle);
cmd.SetComputeFloatParam(dsddParams.diffuseShadowDenoiserCS, HDShaderIDs._CameraFOV, dsddParams.cameraFov);
// Bind Input Textures
cmd.SetComputeTextureParam(dsddParams.diffuseShadowDenoiserCS, dsddParams.bilateralVKernel, HDShaderIDs._DepthTexture, dsddResources.depthStencilBuffer);
cmd.SetComputeTextureParam(dsddParams.diffuseShadowDenoiserCS, dsddParams.bilateralVKernel, HDShaderIDs._NormalBufferTexture, dsddResources.normalBuffer);
cmd.SetComputeTextureParam(dsddParams.diffuseShadowDenoiserCS, dsddParams.bilateralVKernel, HDShaderIDs._DenoiseInputTexture, dsddResources.intermediateBuffer);
cmd.SetComputeTextureParam(dsddParams.diffuseShadowDenoiserCS, dsddParams.bilateralVKernel, HDShaderIDs._DistanceTexture, dsddResources.distanceBuffer);
// Bind output textures
cmd.SetComputeTextureParam(dsddParams.diffuseShadowDenoiserCS, dsddParams.bilateralVKernel, HDShaderIDs._DenoiseOutputTextureRW, dsddResources.outputBuffer);
// Do the Vertical pass
cmd.DispatchCompute(dsddParams.diffuseShadowDenoiserCS, dsddParams.bilateralVKernel, numTilesX, numTilesY, dsddParams.viewCount);
}
