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352 lines
26 KiB
352 lines
26 KiB
using System;
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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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public partial class HDRenderPipeline
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{
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static void ExecuteSSSAreaRayTrace(CommandBuffer cmd, RTShadowAreaPassData data)
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{
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// Inject the ray-tracing sampling data
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BlueNoise.BindDitheredTextureSet(cmd, data.ditheredTextureSet);
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// Evaluate the dispatch parameters
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int areaTileSize = 8;
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int numTilesX = (data.texWidth + (areaTileSize - 1)) / areaTileSize;
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int numTilesY = (data.texHeight + (areaTileSize - 1)) / areaTileSize;
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// We have noticed from extensive profiling that ray-trace shaders are not as effective for running per-pixel computation. In order to reduce that,
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// we do a first prepass that compute the analytic term and probability and generates the first integration sample
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// Bind the light data
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cmd.SetComputeMatrixParam(data.screenSpaceShadowsCS, HDShaderIDs._RaytracingAreaWorldToLocal, data.worldToLocalMatrix);
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cmd.SetComputeIntParam(data.screenSpaceShadowsCS, HDShaderIDs._RaytracingTargetLight, data.lightIndex);
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data.shaderVariablesRayTracingCB._RaytracingNumSamples = data.numSamples;
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ConstantBuffer.PushGlobal(cmd, data.shaderVariablesRayTracingCB, HDShaderIDs._ShaderVariablesRaytracing);
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// Bind the input buffers
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowPrepassKernel, HDShaderIDs._DepthTexture, data.depthStencilBuffer);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowPrepassKernel, HDShaderIDs._NormalBufferTexture, data.normalBuffer);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowPrepassKernel, HDShaderIDs._GBufferTexture[0], data.gbuffer0);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowPrepassKernel, HDShaderIDs._GBufferTexture[1], data.gbuffer1);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowPrepassKernel, HDShaderIDs._GBufferTexture[2], data.gbuffer2);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowPrepassKernel, HDShaderIDs._GBufferTexture[3], data.gbuffer3);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowPrepassKernel, HDShaderIDs._StencilTexture, data.depthStencilBuffer, 0, RenderTextureSubElement.Stencil);
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// Bind the output buffers
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowPrepassKernel, HDShaderIDs._RaytracedAreaShadowIntegration, data.outputShadowTexture);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowPrepassKernel, HDShaderIDs._RaytracedAreaShadowSample, data.intermediateBufferRGBA1);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowPrepassKernel, HDShaderIDs._RaytracingDirectionBuffer, data.directionBuffer);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowPrepassKernel, HDShaderIDs._RayTracingLengthBuffer, data.rayLengthBuffer);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowPrepassKernel, HDShaderIDs._AnalyticProbBuffer, data.intermediateBufferRG0);
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cmd.DispatchCompute(data.screenSpaceShadowsCS, data.areaRaytracingShadowPrepassKernel, numTilesX, numTilesY, data.viewCount);
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// Set ray count texture
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cmd.SetRayTracingTextureParam(data.screenSpaceShadowsRT, HDShaderIDs._RayCountTexture, data.rayCountTexture);
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// Set the acceleration structure for the pass
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cmd.SetRayTracingAccelerationStructure(data.screenSpaceShadowsRT, HDShaderIDs._RaytracingAccelerationStructureName, data.accelerationStructure);
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// Define the shader pass to use for the reflection pass
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cmd.SetRayTracingShaderPass(data.screenSpaceShadowsRT, "VisibilityDXR");
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// Input data
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cmd.SetRayTracingTextureParam(data.screenSpaceShadowsRT, HDShaderIDs._DepthTexture, data.depthStencilBuffer);
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cmd.SetRayTracingTextureParam(data.screenSpaceShadowsRT, HDShaderIDs._NormalBufferTexture, data.normalBuffer);
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cmd.SetRayTracingTextureParam(data.screenSpaceShadowsRT, HDShaderIDs._AnalyticProbBuffer, data.intermediateBufferRG0);
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cmd.SetRayTracingTextureParam(data.screenSpaceShadowsRT, HDShaderIDs._RaytracedAreaShadowSample, data.intermediateBufferRGBA1);
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cmd.SetRayTracingTextureParam(data.screenSpaceShadowsRT, HDShaderIDs._RaytracingDirectionBuffer, data.directionBuffer);
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cmd.SetRayTracingTextureParam(data.screenSpaceShadowsRT, HDShaderIDs._RayTracingLengthBuffer, data.rayLengthBuffer);
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cmd.SetRayTracingIntParam(data.screenSpaceShadowsRT, HDShaderIDs._RaytracingTargetLight, data.lightIndex);
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// Output data
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cmd.SetRayTracingTextureParam(data.screenSpaceShadowsRT, HDShaderIDs._RaytracedAreaShadowIntegration, data.outputShadowTexture);
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// Evaluate the intersection
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cmd.DispatchRays(data.screenSpaceShadowsRT, m_RayGenAreaShadowSingleName, (uint)data.texWidth, (uint)data.texHeight, (uint)data.viewCount);
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// Let's do the following samples (if any)
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for (int sampleIndex = 1; sampleIndex < data.numSamples; ++sampleIndex)
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{
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// Update global Constant Buffer
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data.shaderVariablesRayTracingCB._RaytracingNumSamples = data.numSamples;
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data.shaderVariablesRayTracingCB._RaytracingSampleIndex = sampleIndex;
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ConstantBuffer.PushGlobal(cmd, data.shaderVariablesRayTracingCB, HDShaderIDs._ShaderVariablesRaytracing);
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// Bind the light data
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cmd.SetComputeIntParam(data.screenSpaceShadowsCS, HDShaderIDs._RaytracingTargetLight, data.lightIndex);
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cmd.SetComputeMatrixParam(data.screenSpaceShadowsCS, HDShaderIDs._RaytracingAreaWorldToLocal, data.worldToLocalMatrix);
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// Input Buffers
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowNewSampleKernel, HDShaderIDs._DepthTexture, data.depthStencilBuffer);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowNewSampleKernel, HDShaderIDs._NormalBufferTexture, data.normalBuffer);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowNewSampleKernel, HDShaderIDs._GBufferTexture[0], data.gbuffer0);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowNewSampleKernel, HDShaderIDs._GBufferTexture[1], data.gbuffer1);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowNewSampleKernel, HDShaderIDs._GBufferTexture[2], data.gbuffer2);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowNewSampleKernel, HDShaderIDs._GBufferTexture[3], data.gbuffer3);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowNewSampleKernel, HDShaderIDs._StencilTexture, data.depthStencilBuffer, 0, RenderTextureSubElement.Stencil);
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// Output buffers
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowNewSampleKernel, HDShaderIDs._RaytracedAreaShadowSample, data.intermediateBufferRGBA1);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowNewSampleKernel, HDShaderIDs._RaytracingDirectionBuffer, data.directionBuffer);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowNewSampleKernel, HDShaderIDs._RayTracingLengthBuffer, data.rayLengthBuffer);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsCS, data.areaRaytracingShadowNewSampleKernel, HDShaderIDs._AnalyticProbBuffer, data.intermediateBufferRG0);
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cmd.DispatchCompute(data.screenSpaceShadowsCS, data.areaRaytracingShadowNewSampleKernel, numTilesX, numTilesY, data.viewCount);
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// Input buffers
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cmd.SetRayTracingTextureParam(data.screenSpaceShadowsRT, HDShaderIDs._DepthTexture, data.depthStencilBuffer);
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cmd.SetRayTracingTextureParam(data.screenSpaceShadowsRT, HDShaderIDs._NormalBufferTexture, data.normalBuffer);
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cmd.SetRayTracingTextureParam(data.screenSpaceShadowsRT, HDShaderIDs._RaytracedAreaShadowSample, data.intermediateBufferRGBA1);
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cmd.SetRayTracingTextureParam(data.screenSpaceShadowsRT, HDShaderIDs._RaytracingDirectionBuffer, data.directionBuffer);
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cmd.SetRayTracingTextureParam(data.screenSpaceShadowsRT, HDShaderIDs._RayTracingLengthBuffer, data.rayLengthBuffer);
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cmd.SetRayTracingTextureParam(data.screenSpaceShadowsRT, HDShaderIDs._AnalyticProbBuffer, data.intermediateBufferRG0);
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cmd.SetRayTracingIntParam(data.screenSpaceShadowsRT, HDShaderIDs._RaytracingTargetLight, data.lightIndex);
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// Output buffers
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cmd.SetRayTracingTextureParam(data.screenSpaceShadowsRT, HDShaderIDs._RaytracedAreaShadowIntegration, data.outputShadowTexture);
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// Evaluate the intersection
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cmd.DispatchRays(data.screenSpaceShadowsRT, m_RayGenAreaShadowSingleName, (uint)data.texWidth, (uint)data.texHeight, (uint)data.viewCount);
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}
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if (data.filterTracedShadow)
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{
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Vector4 shadowChannelMask0 = new Vector4();
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Vector4 shadowChannelMask1 = new Vector4();
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Vector4 shadowChannelMask2 = new Vector4();
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GetShadowChannelMask(data.areaShadowSlot, ScreenSpaceShadowType.Area, ref shadowChannelMask0);
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GetShadowChannelMask(data.areaShadowSlot, ScreenSpaceShadowType.GrayScale, ref shadowChannelMask1);
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GetShadowChannelMask(data.areaShadowSlot + 1, ScreenSpaceShadowType.GrayScale, ref shadowChannelMask2);
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// Global parameters
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cmd.SetComputeIntParam(data.screenSpaceShadowsFilterCS, HDShaderIDs._RaytracingDenoiseRadius, data.filterSize);
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cmd.SetComputeIntParam(data.screenSpaceShadowsFilterCS, HDShaderIDs._DenoisingHistorySlice, data.areaShadowSlot / 4);
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cmd.SetComputeVectorParam(data.screenSpaceShadowsFilterCS, HDShaderIDs._DenoisingHistoryMask, shadowChannelMask0);
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cmd.SetComputeVectorParam(data.screenSpaceShadowsFilterCS, HDShaderIDs._DenoisingHistoryMaskSn, shadowChannelMask1);
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cmd.SetComputeVectorParam(data.screenSpaceShadowsFilterCS, HDShaderIDs._DenoisingHistoryMaskUn, shadowChannelMask2);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaShadowApplyTAAKernel, HDShaderIDs._AnalyticProbBuffer, data.intermediateBufferRG0);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaShadowApplyTAAKernel, HDShaderIDs._DepthTexture, data.depthStencilBuffer);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaShadowApplyTAAKernel, HDShaderIDs._CameraMotionVectorsTexture, data.motionVectorsBuffer);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaShadowApplyTAAKernel, HDShaderIDs._AreaShadowHistory, data.shadowHistoryArray);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaShadowApplyTAAKernel, HDShaderIDs._AnalyticHistoryBuffer, data.analyticHistoryArray);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaShadowApplyTAAKernel, HDShaderIDs._DenoiseInputTexture, data.outputShadowTexture);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaShadowApplyTAAKernel, HDShaderIDs._DenoiseOutputTextureRW, data.intermediateBufferRGBA1);
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cmd.SetComputeFloatParam(data.screenSpaceShadowsFilterCS, HDShaderIDs._HistoryValidity, data.historyValidity);
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cmd.DispatchCompute(data.screenSpaceShadowsFilterCS, data.areaShadowApplyTAAKernel, numTilesX, numTilesY, data.viewCount);
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// Update the shadow history buffer
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaUpdateAnalyticHistoryKernel, HDShaderIDs._AnalyticProbBuffer, data.intermediateBufferRG0);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaUpdateAnalyticHistoryKernel, HDShaderIDs._AnalyticHistoryBufferRW, data.analyticHistoryArray);
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cmd.DispatchCompute(data.screenSpaceShadowsFilterCS, data.areaUpdateAnalyticHistoryKernel, numTilesX, numTilesY, data.viewCount);
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// Update the analytic history buffer
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaUpdateShadowHistoryKernel, HDShaderIDs._DenoiseInputTexture, data.intermediateBufferRGBA1);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaUpdateShadowHistoryKernel, HDShaderIDs._AreaShadowHistoryRW, data.shadowHistoryArray);
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cmd.DispatchCompute(data.screenSpaceShadowsFilterCS, data.areaUpdateShadowHistoryKernel, numTilesX, numTilesY, data.viewCount);
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// Inject parameters for noise estimation
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaEstimateNoiseKernel, HDShaderIDs._DepthTexture, data.depthStencilBuffer);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaEstimateNoiseKernel, HDShaderIDs._NormalBufferTexture, data.normalBuffer);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaEstimateNoiseKernel, HDShaderIDs._ScramblingTexture, data.scramblingTex);
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// Noise estimation pre-pass
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaEstimateNoiseKernel, HDShaderIDs._DenoiseInputTexture, data.intermediateBufferRGBA1);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaEstimateNoiseKernel, HDShaderIDs._DenoiseOutputTextureRW, data.outputShadowTexture);
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cmd.DispatchCompute(data.screenSpaceShadowsFilterCS, data.areaEstimateNoiseKernel, numTilesX, numTilesY, data.viewCount);
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// Reinject parameters for denoising
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaFirstDenoiseKernel, HDShaderIDs._DepthTexture, data.depthStencilBuffer);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaFirstDenoiseKernel, HDShaderIDs._NormalBufferTexture, data.normalBuffer);
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// First denoising pass
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaFirstDenoiseKernel, HDShaderIDs._DenoiseInputTexture, data.outputShadowTexture);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaFirstDenoiseKernel, HDShaderIDs._DenoiseOutputTextureRW, data.intermediateBufferRGBA1);
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cmd.DispatchCompute(data.screenSpaceShadowsFilterCS, data.areaFirstDenoiseKernel, numTilesX, numTilesY, data.viewCount);
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// Re-inject parameters for denoising
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaSecondDenoiseKernel, HDShaderIDs._DepthTexture, data.depthStencilBuffer);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaSecondDenoiseKernel, HDShaderIDs._NormalBufferTexture, data.normalBuffer);
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// Second (and final) denoising pass
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaSecondDenoiseKernel, HDShaderIDs._DenoiseInputTexture, data.intermediateBufferRGBA1);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaSecondDenoiseKernel, HDShaderIDs._DenoiseOutputTextureRW, data.outputShadowTexture);
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cmd.DispatchCompute(data.screenSpaceShadowsFilterCS, data.areaSecondDenoiseKernel, numTilesX, numTilesY, data.viewCount);
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}
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else
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{
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaShadowNoDenoiseKernel, HDShaderIDs._AnalyticProbBuffer, data.intermediateBufferRG0);
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cmd.SetComputeTextureParam(data.screenSpaceShadowsFilterCS, data.areaShadowNoDenoiseKernel, HDShaderIDs._DenoiseOutputTextureRW, data.outputShadowTexture);
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cmd.DispatchCompute(data.screenSpaceShadowsFilterCS, data.areaShadowNoDenoiseKernel, numTilesX, numTilesY, data.viewCount);
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}
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}
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class RTShadowAreaPassData
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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 int numSamples;
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public int lightIndex;
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public Matrix4x4 worldToLocalMatrix;
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public float historyValidity;
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public bool filterTracedShadow;
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public int areaShadowSlot;
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public int filterSize;
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// Kernels
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public int areaRaytracingShadowPrepassKernel;
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public int areaRaytracingShadowNewSampleKernel;
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public int areaShadowApplyTAAKernel;
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public int areaUpdateAnalyticHistoryKernel;
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public int areaUpdateShadowHistoryKernel;
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public int areaEstimateNoiseKernel;
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public int areaFirstDenoiseKernel;
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public int areaSecondDenoiseKernel;
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public int areaShadowNoDenoiseKernel;
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// Other parameters
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public RayTracingAccelerationStructure accelerationStructure;
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public ShaderVariablesRaytracing shaderVariablesRayTracingCB;
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public ComputeShader screenSpaceShadowsCS;
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public ComputeShader screenSpaceShadowsFilterCS;
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public RayTracingShader screenSpaceShadowsRT;
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public Texture2D scramblingTex;
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public BlueNoise.DitheredTextureSet ditheredTextureSet;
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// Input Buffers
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public TextureHandle depthStencilBuffer;
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public TextureHandle normalBuffer;
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public TextureHandle motionVectorsBuffer;
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public TextureHandle gbuffer0;
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public TextureHandle gbuffer1;
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public TextureHandle gbuffer2;
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public TextureHandle gbuffer3;
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public TextureHandle shadowHistoryArray;
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public TextureHandle analyticHistoryArray;
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// Intermediate buffers
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public TextureHandle directionBuffer;
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public TextureHandle rayLengthBuffer;
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public TextureHandle intermediateBufferRGBA1;
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public TextureHandle intermediateBufferRG0;
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// Debug textures
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public TextureHandle rayCountTexture;
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// Output buffers
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public TextureHandle outputShadowTexture;
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}
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void RenderAreaScreenSpaceShadow(RenderGraph renderGraph, HDCamera hdCamera
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, in LightData lightData, HDAdditionalLightData additionalLightData, int lightIndex,
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PrepassOutput prepassOutput, TextureHandle depthBuffer, TextureHandle normalBuffer, TextureHandle motionVectorsBuffer, TextureHandle rayCountTexture, TextureHandle screenSpaceShadowArray)
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{
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// Grab the history buffers for shadows
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RTHandle shadowHistoryArray = RequestShadowHistoryBuffer(hdCamera);
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RTHandle analyticHistoryArray = RequestShadowHistoryValidityBuffer(hdCamera);
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TextureHandle areaShadow;
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using (var builder = renderGraph.AddRenderPass<RTShadowAreaPassData>("Screen Space Shadows Debug", out var passData, ProfilingSampler.Get(HDProfileId.RaytracingAreaLightShadow)))
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{
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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.numSamples = additionalLightData.numRayTracingSamples;
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passData.lightIndex = lightIndex;
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// We need to build the world to area light matrix
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passData.worldToLocalMatrix.SetColumn(0, lightData.right);
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passData.worldToLocalMatrix.SetColumn(1, lightData.up);
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passData.worldToLocalMatrix.SetColumn(2, lightData.forward);
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// Compensate the relative rendering if active
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Vector3 lightPositionWS = lightData.positionRWS;
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passData.worldToLocalMatrix.SetColumn(3, lightPositionWS);
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passData.worldToLocalMatrix.m33 = 1.0f;
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passData.worldToLocalMatrix = passData.worldToLocalMatrix.inverse;
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passData.historyValidity = EvaluateHistoryValidity(hdCamera);
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passData.filterTracedShadow = additionalLightData.filterTracedShadow;
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passData.areaShadowSlot = m_GpuLightsBuilder.lights[lightIndex].screenSpaceShadowIndex;
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passData.filterSize = additionalLightData.filterSizeTraced;
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// Kernels
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passData.areaRaytracingShadowPrepassKernel = m_AreaRaytracingShadowPrepassKernel;
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passData.areaRaytracingShadowNewSampleKernel = m_AreaRaytracingShadowNewSampleKernel;
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passData.areaShadowApplyTAAKernel = m_AreaShadowApplyTAAKernel;
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passData.areaUpdateAnalyticHistoryKernel = m_AreaUpdateAnalyticHistoryKernel;
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passData.areaUpdateShadowHistoryKernel = m_AreaUpdateShadowHistoryKernel;
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passData.areaEstimateNoiseKernel = m_AreaEstimateNoiseKernel;
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passData.areaFirstDenoiseKernel = m_AreaFirstDenoiseKernel;
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passData.areaSecondDenoiseKernel = m_AreaSecondDenoiseKernel;
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passData.areaShadowNoDenoiseKernel = m_AreaShadowNoDenoiseKernel;
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// Other parameters
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// Grab the acceleration structure for the target camera
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passData.accelerationStructure = RequestAccelerationStructure(hdCamera);
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passData.shaderVariablesRayTracingCB = m_ShaderVariablesRayTracingCB;
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passData.screenSpaceShadowsCS = m_ScreenSpaceShadowsCS;
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passData.screenSpaceShadowsRT = m_ScreenSpaceShadowsRT;
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passData.screenSpaceShadowsFilterCS = m_ScreenSpaceShadowsFilterCS;
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passData.scramblingTex = runtimeTextures.scramblingTex;
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passData.ditheredTextureSet = GetBlueNoiseManager().DitheredTextureSet8SPP();
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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.motionVectorsBuffer = builder.ReadTexture(motionVectorsBuffer);
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if (hdCamera.frameSettings.litShaderMode == LitShaderMode.Deferred)
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{
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passData.gbuffer0 = builder.ReadTexture(prepassOutput.gbuffer.mrt[0]);
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passData.gbuffer1 = builder.ReadTexture(prepassOutput.gbuffer.mrt[1]);
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passData.gbuffer2 = builder.ReadTexture(prepassOutput.gbuffer.mrt[2]);
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passData.gbuffer3 = builder.ReadTexture(prepassOutput.gbuffer.mrt[3]);
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}
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else
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{
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passData.gbuffer0 = builder.ReadTexture(renderGraph.defaultResources.blackTextureXR);
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passData.gbuffer1 = builder.ReadTexture(renderGraph.defaultResources.blackTextureXR);
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passData.gbuffer2 = builder.ReadTexture(renderGraph.defaultResources.blackTextureXR);
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passData.gbuffer3 = builder.ReadTexture(renderGraph.defaultResources.blackTextureXR);
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}
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passData.shadowHistoryArray = builder.ReadWriteTexture(renderGraph.ImportTexture(shadowHistoryArray));
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passData.analyticHistoryArray = builder.ReadWriteTexture(renderGraph.ImportTexture(analyticHistoryArray));
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// Intermediate buffers
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passData.directionBuffer = builder.CreateTransientTexture(new TextureDesc(Vector2.one, true, true) { format = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "Direction Buffer" });
|
|
passData.rayLengthBuffer = builder.CreateTransientTexture(new TextureDesc(Vector2.one, true, true) { format = GraphicsFormat.R32_SFloat, enableRandomWrite = true, name = "Ray Length Buffer" });
|
|
passData.intermediateBufferRGBA1 = builder.CreateTransientTexture(new TextureDesc(Vector2.one, true, true) { format = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "Intermediate Buffer RGBA1" }); ;
|
|
passData.intermediateBufferRG0 = builder.CreateTransientTexture(new TextureDesc(Vector2.one, true, true) { format = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "Intermediate Buffer RG0" });
|
|
|
|
// Debug textures
|
|
passData.rayCountTexture = builder.ReadWriteTexture(rayCountTexture);
|
|
|
|
// Output buffers
|
|
passData.outputShadowTexture = builder.ReadWriteTexture(renderGraph.CreateTexture(new TextureDesc(Vector2.one, true, true) { format = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "Shadow Buffer" }));
|
|
builder.SetRenderFunc(
|
|
(RTShadowAreaPassData data, RenderGraphContext context) =>
|
|
{
|
|
ExecuteSSSAreaRayTrace(context.cmd, data);
|
|
});
|
|
areaShadow = passData.outputShadowTexture;
|
|
}
|
|
|
|
int areaShadowSlot = m_GpuLightsBuilder.lights[lightIndex].screenSpaceShadowIndex;
|
|
WriteScreenSpaceShadow(renderGraph, hdCamera, areaShadow, screenSpaceShadowArray, areaShadowSlot, ScreenSpaceShadowType.Area);
|
|
|
|
if (additionalLightData.filterTracedShadow)
|
|
{
|
|
// Do not forget to update the identification of shadow history usage
|
|
hdCamera.PropagateShadowHistory(additionalLightData, areaShadowSlot, GPULightType.Rectangle);
|
|
}
|
|
}
|
|
}
|
|
}
|