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345 lines
19 KiB
345 lines
19 KiB
using UnityEngine.Experimental.Rendering;
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using UnityEngine.Rendering.RenderGraphModule;
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namespace UnityEngine.Rendering.HighDefinition
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{
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class HDDiffuseShadowDenoiser
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{
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// The resources quired by this component
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ComputeShader m_ShadowDenoiser;
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// Kernels that we are using
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int m_BilateralFilterHSingleDirectionalKernel;
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int m_BilateralFilterVSingleDirectionalKernel;
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int m_BilateralFilterHColorDirectionalKernel;
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int m_BilateralFilterVColorDirectionalKernel;
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int m_BilateralFilterHSinglePointKernel;
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int m_BilateralFilterVSinglePointKernel;
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int m_BilateralFilterHSingleSpotKernel;
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int m_BilateralFilterVSingleSpotKernel;
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int m_BilateralFilterHSinglePyramidKernel;
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int m_BilateralFilterVSinglePyramidKernel;
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int m_BilateralFilterHSingleBoxKernel;
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int m_BilateralFilterVSingleBoxKernel;
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public HDDiffuseShadowDenoiser()
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{
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}
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public void Init(HDRPRayTracingResources rpRTResources)
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{
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m_ShadowDenoiser = rpRTResources.diffuseShadowDenoiserCS;
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m_BilateralFilterHSingleDirectionalKernel = m_ShadowDenoiser.FindKernel("BilateralFilterHSingleDirectional");
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m_BilateralFilterVSingleDirectionalKernel = m_ShadowDenoiser.FindKernel("BilateralFilterVSingleDirectional");
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m_BilateralFilterHColorDirectionalKernel = m_ShadowDenoiser.FindKernel("BilateralFilterHColorDirectional");
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m_BilateralFilterVColorDirectionalKernel = m_ShadowDenoiser.FindKernel("BilateralFilterVColorDirectional");
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m_BilateralFilterHSinglePointKernel = m_ShadowDenoiser.FindKernel("BilateralFilterHSinglePoint");
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m_BilateralFilterVSinglePointKernel = m_ShadowDenoiser.FindKernel("BilateralFilterVSinglePoint");
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m_BilateralFilterHSingleSpotKernel = m_ShadowDenoiser.FindKernel("BilateralFilterHSingleSpot");
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m_BilateralFilterVSingleSpotKernel = m_ShadowDenoiser.FindKernel("BilateralFilterVSingleSpot");
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m_BilateralFilterHSinglePyramidKernel = m_ShadowDenoiser.FindKernel("BilateralFilterHSinglePyramid");
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m_BilateralFilterVSinglePyramidKernel = m_ShadowDenoiser.FindKernel("BilateralFilterVSinglePyramid");
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m_BilateralFilterHSingleBoxKernel = m_ShadowDenoiser.FindKernel("BilateralFilterHSingleBox");
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m_BilateralFilterVSingleBoxKernel = m_ShadowDenoiser.FindKernel("BilateralFilterVSingleBox");
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}
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public void Release()
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{
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}
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class DiffuseShadowDenoiserDirectionalPassData
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{
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// Camera parameters
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public int texWidth;
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public int texHeight;
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public int viewCount;
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// Evaluation parameters
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public float lightAngle;
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public float cameraFov;
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public int kernelSize;
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// Kernels
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public int bilateralHKernel;
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public int bilateralVKernel;
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// Other parameters
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public ComputeShader diffuseShadowDenoiserCS;
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public TextureHandle depthStencilBuffer;
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public TextureHandle normalBuffer;
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public TextureHandle distanceBuffer;
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public TextureHandle noisyBuffer;
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public TextureHandle intermediateBuffer;
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public TextureHandle outputBuffer;
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}
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public TextureHandle DenoiseBufferDirectional(RenderGraph renderGraph, HDCamera hdCamera,
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TextureHandle depthBuffer, TextureHandle normalBuffer,
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TextureHandle noisyBuffer, TextureHandle distanceBuffer,
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int kernelSize, float angularDiameter, bool singleChannel = true)
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{
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using (var builder = renderGraph.AddRenderPass<DiffuseShadowDenoiserDirectionalPassData>("TemporalDenoiser", out var passData, ProfilingSampler.Get(HDProfileId.DiffuseFilter)))
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{
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// Cannot run in async
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builder.EnableAsyncCompute(false);
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// Fetch all the resources
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// Set the camera parameters
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passData.texWidth = hdCamera.actualWidth;
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passData.texHeight = hdCamera.actualHeight;
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passData.viewCount = hdCamera.viewCount;
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// Evaluation parameters
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passData.cameraFov = hdCamera.camera.fieldOfView * Mathf.PI / 180.0f;
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// Convert the angular diameter of the directional light to radians (from degrees)
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passData.lightAngle = angularDiameter * Mathf.PI / 180.0f;
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passData.kernelSize = kernelSize;
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// Kernels
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passData.bilateralHKernel = singleChannel ? m_BilateralFilterHSingleDirectionalKernel : m_BilateralFilterHColorDirectionalKernel;
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passData.bilateralVKernel = singleChannel ? m_BilateralFilterVSingleDirectionalKernel : m_BilateralFilterVColorDirectionalKernel;
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// Other parameters
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passData.diffuseShadowDenoiserCS = m_ShadowDenoiser;
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// Input buffers
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passData.depthStencilBuffer = builder.UseDepthBuffer(depthBuffer, DepthAccess.Read);
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passData.normalBuffer = builder.ReadTexture(normalBuffer);
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passData.distanceBuffer = builder.ReadTexture(distanceBuffer);
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passData.noisyBuffer = builder.ReadTexture(noisyBuffer);
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// Temporary buffers
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passData.intermediateBuffer = builder.CreateTransientTexture(new TextureDesc(Vector2.one, true, true)
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{ format = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "Intermediate buffer" });
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// Output buffer
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passData.outputBuffer = builder.ReadWriteTexture(renderGraph.CreateTexture(new TextureDesc(Vector2.one, true, true)
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{ format = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "Denoised Buffer" }));
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builder.SetRenderFunc(
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(DiffuseShadowDenoiserDirectionalPassData data, RenderGraphContext ctx) =>
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{
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// Raise the distance based denoiser keyword
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CoreUtils.SetKeyword(ctx.cmd, "DISTANCE_BASED_DENOISER", true);
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// Evaluate the dispatch parameters
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int denoiserTileSize = 8;
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int numTilesX = (data.texWidth + (denoiserTileSize - 1)) / denoiserTileSize;
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int numTilesY = (data.texHeight + (denoiserTileSize - 1)) / denoiserTileSize;
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// Bind input uniforms for both dispatches
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ctx.cmd.SetComputeFloatParam(data.diffuseShadowDenoiserCS, HDShaderIDs._RaytracingLightAngle, data.lightAngle);
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ctx.cmd.SetComputeIntParam(data.diffuseShadowDenoiserCS, HDShaderIDs._DenoiserFilterRadius, data.kernelSize);
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ctx.cmd.SetComputeFloatParam(data.diffuseShadowDenoiserCS, HDShaderIDs._CameraFOV, data.cameraFov);
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// Bind Input Textures
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralHKernel, HDShaderIDs._DepthTexture, data.depthStencilBuffer);
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralHKernel, HDShaderIDs._NormalBufferTexture, data.normalBuffer);
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralHKernel, HDShaderIDs._DenoiseInputTexture, data.noisyBuffer);
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralHKernel, HDShaderIDs._DistanceTexture, data.distanceBuffer);
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralHKernel, HDShaderIDs._StencilTexture, data.depthStencilBuffer, 0, RenderTextureSubElement.Stencil);
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// Bind output textures
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralHKernel, HDShaderIDs._DenoiseOutputTextureRW, data.intermediateBuffer);
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// Do the Horizontal pass
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ctx.cmd.DispatchCompute(data.diffuseShadowDenoiserCS, data.bilateralHKernel, numTilesX, numTilesY, data.viewCount);
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// Bind Input Textures
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralVKernel, HDShaderIDs._DepthTexture, data.depthStencilBuffer);
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralVKernel, HDShaderIDs._NormalBufferTexture, data.normalBuffer);
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralVKernel, HDShaderIDs._DenoiseInputTexture, data.intermediateBuffer);
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralVKernel, HDShaderIDs._DistanceTexture, data.distanceBuffer);
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralVKernel, HDShaderIDs._StencilTexture, data.depthStencilBuffer, 0, RenderTextureSubElement.Stencil);
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// Bind output textures
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralVKernel, HDShaderIDs._DenoiseOutputTextureRW, data.outputBuffer);
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// Do the Vertical pass
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ctx.cmd.DispatchCompute(data.diffuseShadowDenoiserCS, data.bilateralVKernel, numTilesX, numTilesY, data.viewCount);
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CoreUtils.SetKeyword(ctx.cmd, "DISTANCE_BASED_DENOISER", false);
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});
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return passData.outputBuffer;
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}
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}
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class DiffuseShadowDenoiserSpherePassData
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{
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// Camera parameters
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public int texWidth;
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public int texHeight;
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public int viewCount;
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// Evaluation parameters
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public float cameraFov;
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public PunctualShadowProperties properties;
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// Kernels
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public int bilateralHKernel;
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public int bilateralVKernel;
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// Other parameters
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public ComputeShader diffuseShadowDenoiserCS;
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public TextureHandle depthStencilBuffer;
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public TextureHandle normalBuffer;
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public TextureHandle distanceBuffer;
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public TextureHandle noisyBuffer;
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public TextureHandle intermediateBuffer;
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public TextureHandle outputBuffer;
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}
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public TextureHandle DenoiseBufferSphere(RenderGraph renderGraph, HDCamera hdCamera,
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TextureHandle depthBuffer, TextureHandle normalBuffer,
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TextureHandle noisyBuffer, TextureHandle distanceBuffer,
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PunctualShadowProperties properties)
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{
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using (var builder = renderGraph.AddRenderPass<DiffuseShadowDenoiserSpherePassData>("DiffuseDenoiser", out var passData, ProfilingSampler.Get(HDProfileId.DiffuseFilter)))
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{
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// Cannot run in async
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builder.EnableAsyncCompute(false);
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// Set the camera parameters
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passData.texWidth = hdCamera.actualWidth;
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passData.texHeight = hdCamera.actualHeight;
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passData.viewCount = hdCamera.viewCount;
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// Evaluation parameters
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passData.cameraFov = hdCamera.camera.fieldOfView * Mathf.PI / 180.0f;
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passData.properties = properties;
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// Make sure the position is in the right space before injecting it
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if (ShaderConfig.s_CameraRelativeRendering != 0)
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passData.properties.lightPosition -= hdCamera.camera.transform.position;
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// Kernels
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switch (properties.lightType)
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{
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case GPULightType.Spot:
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{
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passData.bilateralHKernel = m_BilateralFilterHSingleSpotKernel;
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passData.bilateralVKernel = m_BilateralFilterVSingleSpotKernel;
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}
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break;
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case GPULightType.ProjectorPyramid:
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{
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passData.bilateralHKernel = m_BilateralFilterHSinglePyramidKernel;
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passData.bilateralVKernel = m_BilateralFilterVSinglePyramidKernel;
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}
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break;
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case GPULightType.ProjectorBox:
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{
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passData.bilateralHKernel = m_BilateralFilterHSingleBoxKernel;
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passData.bilateralVKernel = m_BilateralFilterVSingleBoxKernel;
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}
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break;
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case GPULightType.Point:
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default:
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{
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passData.bilateralHKernel = m_BilateralFilterHSinglePointKernel;
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passData.bilateralVKernel = m_BilateralFilterVSinglePointKernel;
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}
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break;
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}
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// Other parameters
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passData.diffuseShadowDenoiserCS = m_ShadowDenoiser;
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// Input buffers
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passData.depthStencilBuffer = builder.UseDepthBuffer(depthBuffer, DepthAccess.Read);
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passData.normalBuffer = builder.ReadTexture(normalBuffer);
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if (properties.distanceBasedDenoiser)
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passData.distanceBuffer = builder.ReadTexture(distanceBuffer);
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passData.noisyBuffer = builder.ReadTexture(noisyBuffer);
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// Temporary buffers
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passData.intermediateBuffer = builder.CreateTransientTexture(new TextureDesc(Vector2.one, true, true)
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{ format = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "Intermediate buffer" });
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// Output buffer
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passData.outputBuffer = builder.ReadWriteTexture(renderGraph.CreateTexture(new TextureDesc(Vector2.one, true, true)
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{ format = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "Denoised Buffer" }));
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builder.SetRenderFunc(
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(DiffuseShadowDenoiserSpherePassData data, RenderGraphContext ctx) =>
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{
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// Evaluate the dispatch parameters
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int shadowTileSize = 8;
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int numTilesX = (data.texWidth + (shadowTileSize - 1)) / shadowTileSize;
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int numTilesY = (data.texHeight + (shadowTileSize - 1)) / shadowTileSize;
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// Raise the distance based denoiser keyword
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CoreUtils.SetKeyword(ctx.cmd, "DISTANCE_BASED_DENOISER", data.properties.distanceBasedDenoiser);
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// Bind input uniforms for both dispatches
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ctx.cmd.SetComputeIntParam(data.diffuseShadowDenoiserCS, HDShaderIDs._RaytracingTargetLight, data.properties.lightIndex);
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switch(properties.lightType)
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{
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case GPULightType.Spot:
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{
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ctx.cmd.SetComputeFloatParam(data.diffuseShadowDenoiserCS, HDShaderIDs._RaytracingLightAngle, data.properties.lightConeAngle);
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}
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break;
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case GPULightType.ProjectorPyramid:
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case GPULightType.ProjectorBox:
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{
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ctx.cmd.SetComputeFloatParam(data.diffuseShadowDenoiserCS, HDShaderIDs._RaytracingLightSizeX, data.properties.lightSizeX);
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ctx.cmd.SetComputeFloatParam(data.diffuseShadowDenoiserCS, HDShaderIDs._RaytracingLightSizeY, data.properties.lightSizeY);
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}
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break;
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}
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ctx.cmd.SetComputeFloatParam(data.diffuseShadowDenoiserCS, HDShaderIDs._RaytracingLightRadius, data.properties.lightRadius);
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ctx.cmd.SetComputeIntParam(data.diffuseShadowDenoiserCS, HDShaderIDs._DenoiserFilterRadius, data.properties.kernelSize);
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ctx.cmd.SetComputeVectorParam(data.diffuseShadowDenoiserCS, HDShaderIDs._SphereLightPosition, data.properties.lightPosition);
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ctx.cmd.SetComputeFloatParam(data.diffuseShadowDenoiserCS, HDShaderIDs._CameraFOV, data.cameraFov);
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// Bind Input Textures
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralHKernel, HDShaderIDs._DepthTexture, data.depthStencilBuffer);
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralHKernel, HDShaderIDs._NormalBufferTexture, data.normalBuffer);
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralHKernel, HDShaderIDs._DenoiseInputTexture, data.noisyBuffer);
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralHKernel, HDShaderIDs._StencilTexture, data.depthStencilBuffer, 0, RenderTextureSubElement.Stencil);
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if (data.properties.distanceBasedDenoiser)
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralHKernel, HDShaderIDs._DistanceTexture, data.distanceBuffer);
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// Bind output textures
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralHKernel, HDShaderIDs._DenoiseOutputTextureRW, data.intermediateBuffer);
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// Do the Horizontal pass
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ctx.cmd.DispatchCompute(data.diffuseShadowDenoiserCS, data.bilateralHKernel, numTilesX, numTilesY, data.viewCount);
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralVKernel, HDShaderIDs._DepthTexture, data.depthStencilBuffer);
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralVKernel, HDShaderIDs._NormalBufferTexture, data.normalBuffer);
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralVKernel, HDShaderIDs._DenoiseInputTexture, data.intermediateBuffer);
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralVKernel, HDShaderIDs._StencilTexture, data.depthStencilBuffer, 0, RenderTextureSubElement.Stencil);
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if (data.properties.distanceBasedDenoiser)
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralVKernel, HDShaderIDs._DistanceTexture, data.distanceBuffer);
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// Bind output textures
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ctx.cmd.SetComputeTextureParam(data.diffuseShadowDenoiserCS, data.bilateralVKernel, HDShaderIDs._DenoiseOutputTextureRW, data.outputBuffer);
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// Do the Vertical pass
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ctx.cmd.DispatchCompute(data.diffuseShadowDenoiserCS, data.bilateralVKernel, numTilesX, numTilesY, data.viewCount);
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CoreUtils.SetKeyword(ctx.cmd, "DISTANCE_BASED_DENOISER", false);
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});
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return passData.outputBuffer;
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}
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}
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}
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}
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