/// <summary>Registers a texture and returns a handle to the texture.</summary>
/// <param name="path">The path to the file or folder that contains the texture.</param>
/// <param name="parameters">The parameters that specify how to process the texture.</param>
/// <param name="handle">Receives the handle to the texture.</param>
/// <returns>Whether loading the texture was successful.</returns>
public virtual bool RegisterTexture(string path, TextureParameters parameters, out TextureHandle handle) {
handle = null;
return false;
}
TextureHandle RenderScreenSpaceShadows(RenderGraph renderGraph, HDCamera hdCamera, PrepassOutput prepassOutput, TextureHandle depthBuffer, TextureHandle normalBuffer, TextureHandle motionVectorsBuffer, TextureHandle rayCountTexture)
{
// If screen space shadows are not supported for this camera, we are done
if (!hdCamera.frameSettings.IsEnabled(FrameSettingsField.ScreenSpaceShadows) || !RequestedScreenSpaceShadows())
{
return(m_RenderGraph.defaultResources.blackTextureArrayXR);
}
using (new RenderGraphProfilingScope(renderGraph, ProfilingSampler.Get(HDProfileId.ScreenSpaceShadows)))
{
// Request the output texture
TextureHandle screenSpaceShadowTexture = CreateScreenSpaceShadowTextureArray(renderGraph);
// First of all we handle the directional light
RenderDirectionalLightScreenSpaceShadow(renderGraph, hdCamera, depthBuffer, normalBuffer, motionVectorsBuffer, rayCountTexture, screenSpaceShadowTexture);
if (hdCamera.frameSettings.IsEnabled(FrameSettingsField.RayTracing))
{
// We handle the other light sources
RenderLightScreenSpaceShadows(renderGraph, hdCamera, prepassOutput, depthBuffer, normalBuffer, motionVectorsBuffer, rayCountTexture, screenSpaceShadowTexture);
}
// We render the debug view, if the texture is not used, it is not evaluated anyway
TextureHandle screenSpaceShadowDebug = EvaluateShadowDebugView(renderGraph, hdCamera, screenSpaceShadowTexture);
PushFullScreenDebugTexture(m_RenderGraph, screenSpaceShadowDebug, FullScreenDebugMode.ScreenSpaceShadows);
return(screenSpaceShadowTexture);
}
}
void WriteScreenSpaceShadow(RenderGraph renderGraph, HDCamera hdCamera, TextureHandle shadowTexture, TextureHandle screenSpaceShadowArray, int shadowIndex, ScreenSpaceShadowType shadowType)
{
// Write the result texture to the screen space shadow buffer
using (var builder = renderGraph.AddRenderPass <WriteScreenSpaceShadowPassData>("Write Screen Space Shadows", out var passData, ProfilingSampler.Get(HDProfileId.RaytracingWriteShadow)))
{
passData.parameters = PrepareWriteScreenSpaceShadowParameters(hdCamera, shadowIndex, shadowType);
passData.inputShadowBuffer = builder.ReadTexture(shadowTexture);
passData.outputShadowArrayBuffer = builder.ReadWriteTexture(screenSpaceShadowArray);
builder.SetRenderFunc(
(WriteScreenSpaceShadowPassData data, RenderGraphContext context) =>
{
WriteScreenSpaceShadowResources resources = new WriteScreenSpaceShadowResources();
resources.inputShadowBuffer = data.inputShadowBuffer;
resources.outputShadowArrayBuffer = data.outputShadowArrayBuffer;
ExecuteWriteScreenSpaceShadow(context.cmd, data.parameters, resources);
});
}
}
TextureHandle TraceSSGI(RenderGraph renderGraph, HDCamera hdCamera, GlobalIllumination giSettings, TextureHandle depthPyramid, TextureHandle normalBuffer, TextureHandle motionVectorsBuffer)
{
using (var builder = renderGraph.AddRenderPass <TraceSSGIPassData>("Trace SSGI", out var passData, ProfilingSampler.Get(HDProfileId.SSGITrace)))
{
builder.EnableAsyncCompute(false);
passData.parameters = PrepareSSGITraceParameters(hdCamera, giSettings);
passData.depthTexture = builder.ReadTexture(depthPyramid);
passData.normalBuffer = builder.ReadTexture(normalBuffer);
passData.motionVectorsBuffer = builder.ReadTexture(motionVectorsBuffer);
var colorPyramid = hdCamera.GetPreviousFrameRT((int)HDCameraFrameHistoryType.ColorBufferMipChain);
passData.colorPyramid = colorPyramid != null?builder.ReadTexture(renderGraph.ImportTexture(colorPyramid)) : renderGraph.defaultResources.blackTextureXR;
var historyDepth = hdCamera.GetCurrentFrameRT((int)HDCameraFrameHistoryType.Depth);
passData.historyDepth = historyDepth != null?builder.ReadTexture(renderGraph.ImportTexture(historyDepth)) : renderGraph.defaultResources.blackTextureXR;
passData.hitPointBuffer = builder.CreateTransientTexture(new TextureDesc(Vector2.one, true, true)
{
colorFormat = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "SSGI Hit Point"
});
passData.outputBuffer = builder.WriteTexture(renderGraph.CreateTexture(new TextureDesc(Vector2.one, true, true)
{
colorFormat = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "SSGI Signal"
}));
builder.SetRenderFunc(
(TraceSSGIPassData data, RenderGraphContext ctx) =>
{
// We need to fill the structure that holds the various resources
SSGITraceResources resources = new SSGITraceResources();
resources.depthTexture = data.depthTexture;
resources.normalBuffer = data.normalBuffer;
resources.motionVectorsBuffer = data.motionVectorsBuffer;
resources.colorPyramid = data.colorPyramid;
resources.historyDepth = data.historyDepth;
resources.hitPointBuffer = data.hitPointBuffer;
resources.outputBuffer = data.outputBuffer;
ExecuteSSGITrace(ctx.cmd, data.parameters, resources);
});
return(passData.outputBuffer);
}
}
TextureHandle RenderSSGI(RenderGraph renderGraph, HDCamera hdCamera, TextureHandle depthPyramid, TextureHandle normalBuffer, TextureHandle motionVectorsBuffer, ShaderVariablesRaytracing shaderVariablesRayTracingCB)
{
// Grab the global illumination volume component
GlobalIllumination giSettings = hdCamera.volumeStack.GetComponent <GlobalIllumination>();
using (new RenderGraphProfilingScope(renderGraph, ProfilingSampler.Get(HDProfileId.SSGIPass)))
{
// Trace the signal
TextureHandle colorBuffer = TraceSSGI(renderGraph, hdCamera, giSettings, depthPyramid, normalBuffer, motionVectorsBuffer);
// Denoise the signal
float historyValidity = EvaluateHistoryValidity(hdCamera);
SSGIDenoiser ssgiDenoiser = GetSSGIDenoiser();
ssgiDenoiser.Denoise(renderGraph, hdCamera, depthPyramid, normalBuffer, motionVectorsBuffer, colorBuffer, !giSettings.fullResolutionSS, historyValidity: historyValidity);
// Upscale it if required
// If this was a half resolution effect, we still have to upscale it
if (!giSettings.fullResolutionSS)
{
colorBuffer = UpscaleSSGI(renderGraph, hdCamera, giSettings, depthPyramid, colorBuffer);
}
return(colorBuffer);
}
}
TextureHandle RenderRayTracedIndirectDiffuse(RenderGraph renderGraph, HDCamera hdCamera,
TextureHandle depthPyramid, TextureHandle stencilBuffer, TextureHandle normalBuffer, TextureHandle motionVectors, TextureHandle historyValidationTexture,
Texture skyTexture, TextureHandle rayCountTexture,
ShaderVariablesRaytracing shaderVariablesRaytracing)
{
GlobalIllumination giSettings = hdCamera.volumeStack.GetComponent <GlobalIllumination>();
TextureHandle rtreflResult;
bool qualityMode = false;
// Based on what the asset supports, follow the volume or force the right mode.
if (m_Asset.currentPlatformRenderPipelineSettings.supportedRayTracingMode == RenderPipelineSettings.SupportedRayTracingMode.Both)
{
qualityMode = giSettings.mode.value == RayTracingMode.Quality;
}
else
{
qualityMode = m_Asset.currentPlatformRenderPipelineSettings.supportedRayTracingMode == RenderPipelineSettings.SupportedRayTracingMode.Quality;
}
if (qualityMode)
{
rtreflResult = RenderIndirectDiffuseQuality(renderGraph, hdCamera,
depthPyramid, stencilBuffer, normalBuffer, motionVectors, historyValidationTexture,
rayCountTexture, skyTexture,
shaderVariablesRaytracing);
}
else
{
rtreflResult = RenderIndirectDiffusePerformance(renderGraph, hdCamera,
depthPyramid, stencilBuffer, normalBuffer, motionVectors, historyValidationTexture,
rayCountTexture, skyTexture,
shaderVariablesRaytracing);
}
return(rtreflResult);
}
BuildGPULightListOutput BuildGPULightList(RenderGraph renderGraph, HDCamera hdCamera, TextureHandle depthStencilBuffer, TextureHandle stencilBufferCopy, GBufferOutput gBuffer)
{
using (var builder = renderGraph.AddRenderPass <BuildGPULightListPassData>("Build Light List", out var passData, ProfilingSampler.Get(HDProfileId.BuildLightList)))
{
builder.EnableAsyncCompute(hdCamera.frameSettings.BuildLightListRunsAsync());
passData.lightLoopGlobalParameters = PrepareLightLoopGlobalParameters(hdCamera, m_TileAndClusterData);
passData.buildGPULightListParameters = PrepareBuildGPULightListParameters(hdCamera, m_TileAndClusterData, ref m_ShaderVariablesLightListCB, m_TotalLightCount);
passData.depthBuffer = builder.ReadTexture(depthStencilBuffer);
passData.stencilTexture = builder.ReadTexture(stencilBufferCopy);
if (passData.buildGPULightListParameters.computeMaterialVariants && passData.buildGPULightListParameters.enableFeatureVariants)
{
for (int i = 0; i < gBuffer.gBufferCount; ++i)
{
passData.gBuffer[i] = builder.ReadTexture(gBuffer.mrt[i]);
}
passData.gBufferCount = gBuffer.gBufferCount;
}
passData.lightVolumeDataBuffer = m_TileAndClusterData.lightVolumeDataBuffer;
passData.convexBoundsBuffer = m_TileAndClusterData.convexBoundsBuffer;
passData.AABBBoundsBuffer = m_TileAndClusterData.AABBBoundsBuffer;
passData.globalLightListAtomic = m_TileAndClusterData.globalLightListAtomic;
passData.output.tileFeatureFlags = builder.WriteComputeBuffer(renderGraph.ImportComputeBuffer(m_TileAndClusterData.tileFeatureFlags));
passData.output.dispatchIndirectBuffer = builder.WriteComputeBuffer(renderGraph.ImportComputeBuffer(m_TileAndClusterData.dispatchIndirectBuffer));
passData.output.perVoxelOffset = builder.WriteComputeBuffer(renderGraph.ImportComputeBuffer(m_TileAndClusterData.perVoxelOffset));
passData.output.perTileLogBaseTweak = builder.WriteComputeBuffer(renderGraph.ImportComputeBuffer(m_TileAndClusterData.perTileLogBaseTweak));
passData.output.tileList = builder.WriteComputeBuffer(renderGraph.ImportComputeBuffer(m_TileAndClusterData.tileList));
passData.output.bigTileLightList = builder.WriteComputeBuffer(renderGraph.ImportComputeBuffer(m_TileAndClusterData.bigTileLightList));
passData.output.perVoxelLightLists = builder.WriteComputeBuffer(renderGraph.ImportComputeBuffer(m_TileAndClusterData.perVoxelLightLists));
passData.output.lightList = builder.WriteComputeBuffer(renderGraph.ImportComputeBuffer(m_TileAndClusterData.lightList));
builder.SetRenderFunc(
(BuildGPULightListPassData data, RenderGraphContext context) =>
{
bool tileFlagsWritten = false;
var buildLightListResources = PrepareBuildGPULightListResources(context, data);
ClearLightLists(data.buildGPULightListParameters, buildLightListResources, context.cmd);
GenerateLightsScreenSpaceAABBs(data.buildGPULightListParameters, buildLightListResources, context.cmd);
BigTilePrepass(data.buildGPULightListParameters, buildLightListResources, context.cmd);
BuildPerTileLightList(data.buildGPULightListParameters, buildLightListResources, ref tileFlagsWritten, context.cmd);
VoxelLightListGeneration(data.buildGPULightListParameters, buildLightListResources, context.cmd);
BuildDispatchIndirectArguments(data.buildGPULightListParameters, buildLightListResources, tileFlagsWritten, context.cmd);
// TODO RENDERGRAPH WARNING: Note that the three sets of variables are bound here, but it should be handled differently.
PushLightLoopGlobalParams(data.lightLoopGlobalParameters, context.cmd);
});
return(passData.output);
}
}
PrepassOutput RenderPrepass(RenderGraph renderGraph, TextureHandle sssBuffer, CullingResults cullingResults, HDCamera hdCamera)
{
m_IsDepthBufferCopyValid = false;
var result = new PrepassOutput();
result.gbuffer = m_GBufferOutput;
result.dbuffer = m_DBufferOutput;
bool msaa = hdCamera.frameSettings.IsEnabled(FrameSettingsField.MSAA);
bool clearMotionVectors = hdCamera.camera.cameraType == CameraType.SceneView && !hdCamera.animateMaterials;
// TODO: See how to clean this. Some buffers are created outside, some inside functions...
result.motionVectorsBuffer = CreateMotionVectorBuffer(renderGraph, msaa, clearMotionVectors);
result.depthBuffer = CreateDepthBuffer(renderGraph, msaa);
// TODO RENDERGRAPH : XR occlusion mesh also need to write to color buffer
//RenderXROcclusionMeshes(renderGraph, hdCamera, result.depthBuffer);
using (new XRSinglePassScope(renderGraph, hdCamera))
{
// TODO RENDERGRAPH
//// Bind the custom color/depth before the first custom pass
//if (hdCamera.frameSettings.IsEnabled(FrameSettingsField.CustomPass))
//{
// if (m_CustomPassColorBuffer.IsValueCreated)
// cmd.SetGlobalTexture(HDShaderIDs._CustomColorTexture, m_CustomPassColorBuffer.Value);
// if (m_CustomPassDepthBuffer.IsValueCreated)
// cmd.SetGlobalTexture(HDShaderIDs._CustomDepthTexture, m_CustomPassDepthBuffer.Value);
//}
//RenderCustomPass(renderContext, cmd, hdCamera, customPassCullingResults, CustomPassInjectionPoint.BeforeRendering);
bool shouldRenderMotionVectorAfterGBuffer = RenderDepthPrepass(renderGraph, cullingResults, hdCamera, ref result);
if (!shouldRenderMotionVectorAfterGBuffer)
{
// If objects motion vectors are enabled, this will render the objects with motion vector into the target buffers (in addition to the depth)
// Note: An object with motion vector must not be render in the prepass otherwise we can have motion vector write that should have been rejected
RenderObjectsMotionVectors(renderGraph, cullingResults, hdCamera, result);
}
// If we have MSAA, we need to complete the motion vector buffer before buffer resolves, hence we need to run camera mv first.
// This is always fine since shouldRenderMotionVectorAfterGBuffer is always false for forward.
bool needCameraMVBeforeResolve = hdCamera.frameSettings.IsEnabled(FrameSettingsField.MSAA);
if (needCameraMVBeforeResolve)
{
RenderCameraMotionVectors(renderGraph, hdCamera, result.depthPyramidTexture, result.motionVectorsBuffer);
}
// TODO RENDERGRAPH
//PreRenderSky(hdCamera, cmd);
// At this point in forward all objects have been rendered to the prepass (depth/normal/motion vectors) so we can resolve them
ResolvePrepassBuffers(renderGraph, hdCamera, ref result);
RenderDBuffer(renderGraph, hdCamera, ref result, cullingResults);
RenderGBuffer(renderGraph, sssBuffer, ref result, cullingResults, hdCamera);
DecalNormalPatch(renderGraph, hdCamera, ref result);
// TODO RENDERGRAPH
//// After Depth and Normals/roughness including decals
//RenderCustomPass(renderContext, cmd, hdCamera, customPassCullingResults, CustomPassInjectionPoint.AfterOpaqueDepthAndNormal);
// In both forward and deferred, everything opaque should have been rendered at this point so we can safely copy the depth buffer for later processing.
GenerateDepthPyramid(renderGraph, hdCamera, ref result);
// TODO RENDERGRAPH
//// Send all the geometry graphics buffer to client systems if required (must be done after the pyramid and before the transparent depth pre-pass)
//SendGeometryGraphicsBuffers(cmd, hdCamera);
if (shouldRenderMotionVectorAfterGBuffer)
{
// See the call RenderObjectsMotionVectors() above and comment
RenderObjectsMotionVectors(renderGraph, cullingResults, hdCamera, result);
}
// In case we don't have MSAA, we always run camera motion vectors when is safe to assume Object MV are rendered
if (!needCameraMVBeforeResolve)
{
RenderCameraMotionVectors(renderGraph, hdCamera, result.depthPyramidTexture, result.resolvedMotionVectorsBuffer);
}
// TODO RENDERGRAPH / Probably need to move this somewhere else.
//RenderTransparencyOverdraw(cullingResults, hdCamera, renderContext, cmd);
BuildCoarseStencilAndResolveIfNeeded(renderGraph, hdCamera, ref result);
}
return(result);
}
public TextureHandle Denoise(RenderGraph renderGraph, HDCamera hdCamera, DiffuseDenoiserParameters tfParameters, TextureHandle noisyBuffer, TextureHandle depthPyramid, TextureHandle normalBuffer, TextureHandle outputBuffer)
{
using (var builder = renderGraph.AddRenderPass <DiffuseDenoiserPassData>("DiffuseDenoiser", out var passData, ProfilingSampler.Get(HDProfileId.DiffuseFilter)))
{
// Cannot run in async
builder.EnableAsyncCompute(false);
// Fetch all the resources
passData.parameters = tfParameters;
passData.depthStencilBuffer = builder.ReadTexture(depthPyramid);
passData.normalBuffer = builder.ReadTexture(normalBuffer);
passData.noisyBuffer = builder.ReadTexture(noisyBuffer);
passData.intermediateBuffer = builder.CreateTransientTexture(new TextureDesc(Vector2.one, true, true)
{
colorFormat = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "DiffuseDenoiserIntermediate"
});
passData.outputBuffer = builder.WriteTexture(outputBuffer);
builder.SetRenderFunc(
(DiffuseDenoiserPassData data, RenderGraphContext ctx) =>
{
DiffuseDenoiserResources ddResources = new DiffuseDenoiserResources();
ddResources.depthStencilBuffer = data.depthStencilBuffer;
ddResources.normalBuffer = data.normalBuffer;
ddResources.noisyBuffer = data.noisyBuffer;
ddResources.intermediateBuffer = data.intermediateBuffer;
ddResources.outputBuffer = data.outputBuffer;
DenoiseBuffer(ctx.cmd, data.parameters, ddResources);
});
return(passData.outputBuffer);
}
}
// Function that evaluates the history validation Buffer
public TextureHandle HistoryValidity(RenderGraph renderGraph, HDCamera hdCamera, float historyValidity,
TextureHandle depthBuffer, TextureHandle normalBuffer, TextureHandle motionVectorBuffer)
{
using (var builder = renderGraph.AddRenderPass <HistoryValidityPassData>("History Validity Evaluation", out var passData, ProfilingSampler.Get(HDProfileId.HistoryValidity)))
{
// Cannot run in async
builder.EnableAsyncCompute(false);
passData.texWidth = hdCamera.actualWidth;
passData.texHeight = hdCamera.actualHeight;
passData.viewCount = hdCamera.viewCount;
// Denoising parameters
passData.pixelSpreadTangent = HDRenderPipeline.GetPixelSpreadTangent(hdCamera.camera.fieldOfView, hdCamera.actualWidth, hdCamera.actualHeight);
passData.historyValidity = historyValidity;
// Kernels
passData.validateHistoryKernel = m_ValidateHistoryKernel;
// Other parameters
passData.temporalFilterCS = m_TemporalFilterCS;
// Input Buffers
passData.depthStencilBuffer = builder.ReadTexture(depthBuffer);
passData.normalBuffer = builder.ReadTexture(normalBuffer);
passData.motionVectorBuffer = builder.ReadTexture(motionVectorBuffer);
// History buffers
passData.historyDepthTexture = builder.ReadTexture(renderGraph.ImportTexture(hdCamera.GetCurrentFrameRT((int)HDCameraFrameHistoryType.Depth)));
passData.historyNormalTexture = builder.ReadTexture(renderGraph.ImportTexture(hdCamera.GetCurrentFrameRT((int)HDCameraFrameHistoryType.Normal)));
// Output buffers
passData.validationBuffer = builder.WriteTexture(renderGraph.CreateTexture(new TextureDesc(Vector2.one, true, true)
{
colorFormat = GraphicsFormat.R8_UNorm, enableRandomWrite = true, name = "ValidationTexture"
}));
builder.SetRenderFunc(
(HistoryValidityPassData data, RenderGraphContext ctx) =>
{
RTHandle historyDepthTexture = data.historyDepthTexture;
RTHandle historyNormalTexture = data.historyNormalTexture;
// If we do not have a depth and normal history buffers, we can skip right away
if (historyDepthTexture == null || historyNormalTexture == null)
{
CoreUtils.SetRenderTarget(ctx.cmd, data.validationBuffer, clearFlag: ClearFlag.Color, Color.black);
return;
}
// Evaluate the dispatch parameters
int areaTileSize = 8;
int numTilesX = (data.texWidth + (areaTileSize - 1)) / areaTileSize;
int numTilesY = (data.texHeight + (areaTileSize - 1)) / areaTileSize;
// First of all we need to validate the history to know where we can or cannot use the history signal
// Bind the input buffers
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.validateHistoryKernel, HDShaderIDs._DepthTexture, data.depthStencilBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.validateHistoryKernel, HDShaderIDs._HistoryDepthTexture, data.historyDepthTexture);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.validateHistoryKernel, HDShaderIDs._NormalBufferTexture, data.normalBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.validateHistoryKernel, HDShaderIDs._HistoryNormalTexture, data.historyNormalTexture);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.validateHistoryKernel, HDShaderIDs._CameraMotionVectorsTexture, data.motionVectorBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.validateHistoryKernel, HDShaderIDs._StencilTexture, data.depthStencilBuffer, 0, RenderTextureSubElement.Stencil);
// Bind the constants
ctx.cmd.SetComputeFloatParam(data.temporalFilterCS, HDShaderIDs._HistoryValidity, data.historyValidity);
ctx.cmd.SetComputeFloatParam(data.temporalFilterCS, HDShaderIDs._PixelSpreadAngleTangent, data.pixelSpreadTangent);
ctx.cmd.SetComputeIntParam(data.temporalFilterCS, HDShaderIDs._ObjectMotionStencilBit, (int)StencilUsage.ObjectMotionVector);
// Bind the output buffer
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.validateHistoryKernel, HDShaderIDs._ValidationBufferRW, data.validationBuffer);
// Evaluate the validity
ctx.cmd.DispatchCompute(data.temporalFilterCS, data.validateHistoryKernel, numTilesX, numTilesY, data.viewCount);
});
return(passData.validationBuffer);
}
}
TextureHandle RaytracingRecursiveRender(RenderGraph renderGraph, HDCamera hdCamera, TextureHandle colorBuffer, TextureHandle depthPyramid, TextureHandle flagMask, TextureHandle rayCountTexture)
{
// If ray tracing is disabled in the frame settings or the effect is not enabled
RecursiveRendering recursiveSettings = hdCamera.volumeStack.GetComponent <RecursiveRendering>();
if (!hdCamera.frameSettings.IsEnabled(FrameSettingsField.RayTracing) || !recursiveSettings.enable.value)
{
return(colorBuffer);
}
using (var builder = renderGraph.AddRenderPass <RecursiveRenderingPassData>("Recursive Rendering Evaluation", out var passData, ProfilingSampler.Get(HDProfileId.RayTracingRecursiveRendering)))
{
builder.EnableAsyncCompute(false);
// Camera parameters
passData.texWidth = hdCamera.actualWidth;
passData.texHeight = hdCamera.actualHeight;
passData.viewCount = hdCamera.viewCount;
// Effect parameters
passData.rayLength = recursiveSettings.rayLength.value;
passData.maxDepth = recursiveSettings.maxDepth.value;
passData.minSmoothness = recursiveSettings.minSmoothness.value;
// Other data
passData.accelerationStructure = RequestAccelerationStructure();
passData.lightCluster = RequestLightCluster();
passData.recursiveRenderingRT = HDRenderPipelineGlobalSettings.instance.renderPipelineRayTracingResources.forwardRaytracing;
passData.skyTexture = m_SkyManager.GetSkyReflection(hdCamera);
passData.shaderVariablesRayTracingCB = m_ShaderVariablesRayTracingCB;
passData.ditheredTextureSet = GetBlueNoiseManager().DitheredTextureSet8SPP();
passData.depthStencilBuffer = builder.ReadTexture(depthPyramid);
passData.flagMask = builder.ReadTexture(flagMask);
passData.rayCountTexture = builder.ReadWriteTexture(rayCountTexture);
passData.outputBuffer = builder.ReadWriteTexture(colorBuffer);
// Right now the debug buffer is written to independently of what is happening. This must be changed
// TODO RENDERGRAPH
passData.debugBuffer = builder.WriteTexture(renderGraph.CreateTexture(new TextureDesc(Vector2.one, true, true)
{
colorFormat = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "Recursive Rendering Debug Texture"
}));
builder.SetRenderFunc(
(RecursiveRenderingPassData data, RenderGraphContext ctx) =>
{
// Define the shader pass to use for the reflection pass
ctx.cmd.SetRayTracingShaderPass(data.recursiveRenderingRT, "ForwardDXR");
// Set the acceleration structure for the pass
ctx.cmd.SetRayTracingAccelerationStructure(data.recursiveRenderingRT, HDShaderIDs._RaytracingAccelerationStructureName, data.accelerationStructure);
// Inject the ray-tracing sampling data
BlueNoise.BindDitheredTextureSet(ctx.cmd, data.ditheredTextureSet);
// Update Global Constant Buffer.
data.shaderVariablesRayTracingCB._RaytracingRayMaxLength = data.rayLength;
data.shaderVariablesRayTracingCB._RaytracingMaxRecursion = data.maxDepth;
data.shaderVariablesRayTracingCB._RaytracingReflectionMinSmoothness = data.minSmoothness;
ConstantBuffer.PushGlobal(ctx.cmd, data.shaderVariablesRayTracingCB, HDShaderIDs._ShaderVariablesRaytracing);
// Fecth the temporary buffers we shall be using
ctx.cmd.SetRayTracingTextureParam(data.recursiveRenderingRT, HDShaderIDs._RaytracingFlagMask, data.flagMask);
ctx.cmd.SetRayTracingTextureParam(data.recursiveRenderingRT, HDShaderIDs._DepthTexture, data.depthStencilBuffer);
ctx.cmd.SetRayTracingTextureParam(data.recursiveRenderingRT, HDShaderIDs._CameraColorTextureRW, data.outputBuffer);
// Set ray count texture
ctx.cmd.SetRayTracingTextureParam(data.recursiveRenderingRT, HDShaderIDs._RayCountTexture, data.rayCountTexture);
// LightLoop data
data.lightCluster.BindLightClusterData(ctx.cmd);
// Set the data for the ray miss
ctx.cmd.SetRayTracingTextureParam(data.recursiveRenderingRT, HDShaderIDs._SkyTexture, data.skyTexture);
// If this is the right debug mode and we have at least one light, write the first shadow to the de-noised texture
ctx.cmd.SetRayTracingTextureParam(data.recursiveRenderingRT, HDShaderIDs._RaytracingPrimaryDebug, data.debugBuffer);
// Run the computation
ctx.cmd.DispatchRays(data.recursiveRenderingRT, m_RayGenShaderName, (uint)data.texWidth, (uint)data.texHeight, (uint)data.viewCount);
});
PushFullScreenDebugTexture(m_RenderGraph, passData.debugBuffer, FullScreenDebugMode.RecursiveRayTracing);
return(passData.outputBuffer);
}
}
public TemporalDenoiserArrayOutputData DenoiseBuffer(RenderGraph renderGraph, HDCamera hdCamera,
TextureHandle depthBuffer, TextureHandle normalBuffer, TextureHandle motionVectorBuffer, TextureHandle historyValidationBuffer,
TextureHandle noisyBuffer, RTHandle historyBuffer,
TextureHandle distanceBuffer, RTHandle distanceHistorySignal,
TextureHandle velocityBuffer,
RTHandle validationHistoryBuffer,
int sliceIndex, Vector4 channelMask, Vector4 distanceChannelMask,
bool distanceBased, bool singleChannel, float historyValidity)
{
TemporalDenoiserArrayOutputData resultData = new TemporalDenoiserArrayOutputData();
using (var builder = renderGraph.AddRenderPass <TemporalFilterArrayPassData>("TemporalDenoiser", out var passData, ProfilingSampler.Get(HDProfileId.TemporalFilter)))
{
// Cannot run in async
builder.EnableAsyncCompute(false);
// Set the camera parameters
passData.texWidth = hdCamera.actualWidth;
passData.texHeight = hdCamera.actualHeight;
passData.viewCount = hdCamera.viewCount;
// Denoising parameters
passData.distanceBasedDenoiser = distanceBased;
passData.historyValidity = historyValidity;
passData.pixelSpreadTangent = HDRenderPipeline.GetPixelSpreadTangent(hdCamera.camera.fieldOfView, hdCamera.actualWidth, hdCamera.actualHeight);
passData.sliceIndex = sliceIndex;
passData.channelMask = channelMask;
passData.distanceChannelMask = distanceChannelMask;
// Kernels
passData.temporalAccKernel = singleChannel ? m_TemporalAccumulationSingleArrayKernel : m_TemporalAccumulationColorArrayKernel;
passData.copyHistoryKernel = singleChannel ? m_CopyHistorySingleArrayKernel : m_CopyHistoryColorArrayKernel;
passData.temporalAccSingleKernel = m_TemporalAccumulationSingleArrayKernel;
passData.copyHistoryNoValidityKernel = m_CopyHistorySingleArrayNoValidityKernel;
// Other parameters
passData.temporalFilterCS = m_TemporalFilterCS;
// Input buffers
passData.depthStencilBuffer = builder.ReadTexture(depthBuffer);
passData.normalBuffer = builder.ReadTexture(normalBuffer);
passData.motionVectorBuffer = builder.ReadTexture(motionVectorBuffer);
passData.velocityBuffer = builder.ReadTexture(velocityBuffer);
passData.noisyBuffer = builder.ReadTexture(noisyBuffer);
passData.distanceBuffer = distanceBased ? builder.ReadTexture(distanceBuffer) : renderGraph.defaultResources.blackTextureXR;
passData.validationBuffer = builder.ReadTexture(historyValidationBuffer);
// History buffers
passData.historyBuffer = builder.ReadWriteTexture(renderGraph.ImportTexture(historyBuffer));
passData.validationHistoryBuffer = builder.ReadWriteTexture(renderGraph.ImportTexture(validationHistoryBuffer));
passData.distanceHistorySignal = distanceBased ? builder.ReadWriteTexture(renderGraph.ImportTexture(distanceHistorySignal)) : renderGraph.defaultResources.blackTextureXR;
// Output textures
passData.outputBuffer = builder.ReadWriteTexture(renderGraph.CreateTexture(new TextureDesc(Vector2.one, true, true)
{
colorFormat = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "Temporal Filter Output"
}));
passData.outputDistanceSignal = distanceBased ? builder.ReadWriteTexture(renderGraph.CreateTexture(new TextureDesc(Vector2.one, true, true)
{
colorFormat = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "Temporal Filter Distance output"
})) : new TextureHandle();
builder.SetRenderFunc(
(TemporalFilterArrayPassData data, RenderGraphContext ctx) =>
{
// Evaluate the dispatch parameters
int tfTileSize = 8;
int numTilesX = (data.texWidth + (tfTileSize - 1)) / tfTileSize;
int numTilesY = (data.texHeight + (tfTileSize - 1)) / tfTileSize;
// Now that we have validated our history, let's accumulate
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccKernel, HDShaderIDs._DenoiseInputTexture, data.noisyBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccKernel, HDShaderIDs._HistoryBuffer, data.historyBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccKernel, HDShaderIDs._HistoryValidityBuffer, data.validationHistoryBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccKernel, HDShaderIDs._DepthTexture, data.depthStencilBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccKernel, HDShaderIDs._CameraMotionVectorsTexture, data.motionVectorBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccKernel, HDShaderIDs._ValidationBuffer, data.validationBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccKernel, HDShaderIDs._VelocityBuffer, data.velocityBuffer);
// Bind the constants
ctx.cmd.SetComputeIntParam(data.temporalFilterCS, HDShaderIDs._DenoisingHistorySlice, data.sliceIndex);
ctx.cmd.SetComputeVectorParam(data.temporalFilterCS, HDShaderIDs._DenoisingHistoryMask, data.channelMask);
ctx.cmd.SetComputeFloatParam(data.temporalFilterCS, HDShaderIDs._HistoryValidity, data.historyValidity);
// Bind the output buffer
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccKernel, HDShaderIDs._DenoiseOutputTextureRW, data.outputBuffer);
// Combine with the history
ctx.cmd.DispatchCompute(data.temporalFilterCS, data.temporalAccKernel, numTilesX, numTilesY, data.viewCount);
// Make sure to copy the new-accumulated signal in our history buffer
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.copyHistoryKernel, HDShaderIDs._DenoiseInputTexture, data.outputBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.copyHistoryKernel, HDShaderIDs._DenoiseOutputTextureRW, data.historyBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.copyHistoryKernel, HDShaderIDs._ValidityOutputTextureRW, data.validationHistoryBuffer);
ctx.cmd.SetComputeIntParam(data.temporalFilterCS, HDShaderIDs._DenoisingHistorySlice, data.sliceIndex);
ctx.cmd.SetComputeVectorParam(data.temporalFilterCS, HDShaderIDs._DenoisingHistoryMask, data.channelMask);
ctx.cmd.DispatchCompute(data.temporalFilterCS, data.copyHistoryKernel, numTilesX, numTilesY, data.viewCount);
if (data.distanceBasedDenoiser)
{
// Bind the input buffers
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccSingleKernel, HDShaderIDs._DenoiseInputTexture, data.distanceBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccSingleKernel, HDShaderIDs._HistoryBuffer, data.distanceHistorySignal);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccSingleKernel, HDShaderIDs._HistoryValidityBuffer, data.validationHistoryBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccSingleKernel, HDShaderIDs._DepthTexture, data.depthStencilBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccSingleKernel, HDShaderIDs._ValidationBuffer, data.validationBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccSingleKernel, HDShaderIDs._VelocityBuffer, data.velocityBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccSingleKernel, HDShaderIDs._CameraMotionVectorsTexture, data.motionVectorBuffer);
// Bind the constant inputs
ctx.cmd.SetComputeIntParam(data.temporalFilterCS, HDShaderIDs._DenoisingHistorySlice, data.sliceIndex);
ctx.cmd.SetComputeVectorParam(data.temporalFilterCS, HDShaderIDs._DenoisingHistoryMask, data.distanceChannelMask);
// Bind the output buffers
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccSingleKernel, HDShaderIDs._DenoiseOutputTextureRW, data.outputDistanceSignal);
// Dispatch the temporal accumulation
ctx.cmd.DispatchCompute(data.temporalFilterCS, data.temporalAccSingleKernel, numTilesX, numTilesY, data.viewCount);
// Make sure to copy the new-accumulated signal in our history buffer
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.copyHistoryNoValidityKernel, HDShaderIDs._DenoiseInputTexture, data.outputDistanceSignal);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.copyHistoryNoValidityKernel, HDShaderIDs._DenoiseOutputTextureRW, data.distanceHistorySignal);
ctx.cmd.SetComputeIntParam(data.temporalFilterCS, HDShaderIDs._DenoisingHistorySlice, data.sliceIndex);
ctx.cmd.SetComputeVectorParam(data.temporalFilterCS, HDShaderIDs._DenoisingHistoryMask, data.distanceChannelMask);
ctx.cmd.DispatchCompute(data.temporalFilterCS, data.copyHistoryNoValidityKernel, numTilesX, numTilesY, data.viewCount);
}
});
resultData.outputSignal = passData.outputBuffer;
resultData.outputSignalDistance = passData.outputDistanceSignal;
}
return(resultData);
}
// Denoiser variant for non history array
public TextureHandle Denoise(RenderGraph renderGraph, HDCamera hdCamera, bool singleChannel, float historyValidity,
TextureHandle noisyBuffer, TextureHandle velocityBuffer,
TextureHandle historyBuffer,
TextureHandle depthBuffer, TextureHandle normalBuffer, TextureHandle motionVectorBuffer, TextureHandle historyValidationBuffer)
{
using (var builder = renderGraph.AddRenderPass <TemporalFilterPassData>("TemporalDenoiser", out var passData, ProfilingSampler.Get(HDProfileId.TemporalFilter)))
{
// Cannot run in async
builder.EnableAsyncCompute(false);
// Camera parameters
passData.texWidth = hdCamera.actualWidth;
passData.texHeight = hdCamera.actualHeight;
passData.viewCount = hdCamera.viewCount;
// Denoising parameters
passData.pixelSpreadTangent = HDRenderPipeline.GetPixelSpreadTangent(hdCamera.camera.fieldOfView, hdCamera.actualWidth, hdCamera.actualHeight);
passData.historyValidity = historyValidity;
// Kernels
passData.temporalAccKernel = singleChannel ? m_TemporalAccumulationSingleKernel : m_TemporalAccumulationColorKernel;
passData.copyHistoryKernel = singleChannel ? m_CopyHistorySingleKernel : m_CopyHistoryColorKernel;
// Other parameters
passData.temporalFilterCS = m_TemporalFilterCS;
// Prepass Buffers
passData.depthStencilBuffer = builder.ReadTexture(depthBuffer);
passData.normalBuffer = builder.ReadTexture(normalBuffer);
passData.motionVectorBuffer = builder.ReadTexture(motionVectorBuffer);
// Effect buffers
passData.velocityBuffer = builder.ReadTexture(velocityBuffer);
passData.noisyBuffer = builder.ReadTexture(noisyBuffer);
passData.validationBuffer = builder.ReadTexture(historyValidationBuffer);
// History buffer
passData.historyBuffer = builder.ReadWriteTexture(historyBuffer);
// Output buffers
passData.outputBuffer = builder.ReadWriteTexture(renderGraph.CreateTexture(new TextureDesc(Vector2.one, true, true)
{
colorFormat = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "Temporal Filter Output"
}));
builder.SetRenderFunc(
(TemporalFilterPassData data, RenderGraphContext ctx) =>
{
// Evaluate the dispatch parameters
int areaTileSize = 8;
int numTilesX = (data.texWidth + (areaTileSize - 1)) / areaTileSize;
int numTilesY = (data.texHeight + (areaTileSize - 1)) / areaTileSize;
// Now that we have validated our history, let's accumulate
// Bind the input buffers
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccKernel, HDShaderIDs._DenoiseInputTexture, data.noisyBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccKernel, HDShaderIDs._HistoryBuffer, data.historyBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccKernel, HDShaderIDs._DepthTexture, data.depthStencilBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccKernel, HDShaderIDs._ValidationBuffer, data.validationBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccKernel, HDShaderIDs._VelocityBuffer, data.velocityBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccKernel, HDShaderIDs._CameraMotionVectorsTexture, data.motionVectorBuffer);
ctx.cmd.SetComputeFloatParam(data.temporalFilterCS, HDShaderIDs._HistoryValidity, data.historyValidity);
// Bind the output buffer
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.temporalAccKernel, HDShaderIDs._DenoiseOutputTextureRW, data.outputBuffer);
// Combine signal with history
ctx.cmd.DispatchCompute(data.temporalFilterCS, data.temporalAccKernel, numTilesX, numTilesY, data.viewCount);
// Make sure to copy the new-accumulated signal in our history buffer
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.copyHistoryKernel, HDShaderIDs._DenoiseInputTexture, data.outputBuffer);
ctx.cmd.SetComputeTextureParam(data.temporalFilterCS, data.copyHistoryKernel, HDShaderIDs._DenoiseOutputTextureRW, data.historyBuffer);
ctx.cmd.DispatchCompute(data.temporalFilterCS, data.copyHistoryKernel, numTilesX, numTilesY, data.viewCount);
});
return(passData.outputBuffer);
}
}
public void Render(RenderGraph renderGraph,
HDCamera hdCamera,
BlueNoise blueNoise,
TextureHandle colorBuffer,
TextureHandle afterPostProcessTexture,
TextureHandle depthBuffer,
TextureHandle depthBufferMipChain,
TextureHandle motionVectors,
TextureHandle finalRT,
bool flipY)
{
var source = colorBuffer;
TextureHandle alphaTexture = DoCopyAlpha(renderGraph, hdCamera, source);
// Note: whether a pass is really executed or not is generally inside the Do* functions.
// with few exceptions.
if (m_PostProcessEnabled)
{
source = ClearWithGuardBands(renderGraph, hdCamera, source);
source = StopNaNsPass(renderGraph, hdCamera, source);
source = DynamicExposurePass(renderGraph, hdCamera, source);
//if (camera.frameSettings.IsEnabled(FrameSettingsField.CustomPostProcess))
//{
// using (new ProfilingScope(cmd, ProfilingSampler.Get(HDProfileId.CustomPostProcessBeforeTAA)))
// {
// foreach (var typeString in HDRenderPipeline.defaultAsset.beforeTAACustomPostProcesses)
// RenderCustomPostProcess(cmd, camera, ref source, colorBuffer, Type.GetType(typeString));
// }
//}
// Temporal anti-aliasing goes first
if (m_AntialiasingFS)
{
if (hdCamera.antialiasing == HDAdditionalCameraData.AntialiasingMode.TemporalAntialiasing)
{
source = DoTemporalAntialiasing(renderGraph, hdCamera, depthBuffer, motionVectors, depthBufferMipChain, source);
}
else if (hdCamera.antialiasing == HDAdditionalCameraData.AntialiasingMode.SubpixelMorphologicalAntiAliasing)
{
source = SMAAPass(renderGraph, hdCamera, depthBuffer, source);
}
}
// if (camera.frameSettings.IsEnabled(FrameSettingsField.CustomPostProcess))
// {
// using (new ProfilingScope(cmd, ProfilingSampler.Get(HDProfileId.CustomPostProcessBeforePP)))
// {
// foreach (var typeString in HDRenderPipeline.defaultAsset.beforePostProcessCustomPostProcesses)
// RenderCustomPostProcess(cmd, camera, ref source, colorBuffer, Type.GetType(typeString));
// }
// }
source = DepthOfFieldPass(renderGraph, hdCamera, depthBuffer, motionVectors, depthBufferMipChain, source);
// Motion blur after depth of field for aesthetic reasons (better to see motion
// blurred bokeh rather than out of focus motion blur)
source = MotionBlurPass(renderGraph, hdCamera, motionVectors, source);
// Panini projection is done as a fullscreen pass after all depth-based effects are
// done and before bloom kicks in
// This is one effect that would benefit from an overscan mode or supersampling in
// HDRP to reduce the amount of resolution lost at the center of the screen
source = PaniniProjectionPass(renderGraph, hdCamera, source);
TextureHandle bloomTexture = BloomPass(renderGraph, hdCamera, source);
TextureHandle logLutOutput = ColorGradingPass(renderGraph, hdCamera);
source = UberPass(renderGraph, hdCamera, logLutOutput, bloomTexture, source);
m_HDInstance.PushFullScreenDebugTexture(renderGraph, source, FullScreenDebugMode.ColorLog);
// if (camera.frameSettings.IsEnabled(FrameSettingsField.CustomPostProcess))
// {
// using (new ProfilingScope(cmd, ProfilingSampler.Get(HDProfileId.CustomPostProcessAfterPP)))
// {
// foreach (var typeString in HDRenderPipeline.defaultAsset.afterPostProcessCustomPostProcesses)
// RenderCustomPostProcess(cmd, camera, ref source, colorBuffer, Type.GetType(typeString));
// }
// }
source = FXAAPass(renderGraph, hdCamera, source);
hdCamera.resetPostProcessingHistory = false;
}
// Contrast Adaptive Sharpen Upscaling
source = ContrastAdaptiveSharpeningPass(renderGraph, hdCamera, source);
FinalPass(renderGraph, hdCamera, afterPostProcessTexture, alphaTexture, finalRT, source, blueNoise, flipY);
}
void FinalPass(RenderGraph renderGraph, HDCamera hdCamera, TextureHandle afterPostProcessTexture, TextureHandle alphaTexture, TextureHandle finalRT, TextureHandle source, BlueNoise blueNoise, bool flipY)
{
using (var builder = renderGraph.AddRenderPass <FinalPassData>("Final Pass", out var passData, ProfilingSampler.Get(HDProfileId.FinalPost)))
{
passData.parameters = PrepareFinalPass(hdCamera, blueNoise, flipY);
passData.source = builder.ReadTexture(source);
passData.afterPostProcessTexture = builder.ReadTexture(afterPostProcessTexture);
passData.alphaTexture = builder.ReadTexture(alphaTexture);
passData.destination = builder.WriteTexture(finalRT);
builder.SetRenderFunc(
(FinalPassData data, RenderGraphContext ctx) =>
{
DoFinalPass(data.parameters, data.source, data.afterPostProcessTexture, data.destination, data.alphaTexture, ctx.cmd);
});
}
}
public SSGIDenoiserOutput Denoise(RenderGraph renderGraph, HDCamera hdCamera,
TextureHandle depthPyramid, TextureHandle normalBuffer, TextureHandle motionVectorsBuffer, TextureHandle inputOutputBuffer0, TextureHandle inputOutputBuffer1,
HDUtils.PackedMipChainInfo depthMipInfo, bool halfResolution = false, float historyValidity = 1.0f)
{
using (var builder = renderGraph.AddRenderPass <DenoiseSSGIPassData>("Denoise SSGI", out var passData, ProfilingSampler.Get(HDProfileId.SSGIDenoise)))
{
builder.EnableAsyncCompute(false);
// Input buffers
passData.depthTexture = builder.ReadTexture(depthPyramid);
passData.normalBuffer = builder.ReadTexture(normalBuffer);
passData.motionVectorsBuffer = builder.ReadTexture(motionVectorsBuffer);
// History buffer
bool historyRequireClear = false;
RTHandle indirectDiffuseHistory0 = RequestIndirectDiffuseHistory0(hdCamera, out historyRequireClear);
passData.indirectDiffuseHistory0 = builder.ReadTexture(builder.WriteTexture(renderGraph.ImportTexture(indirectDiffuseHistory0)));
RTHandle indirectDiffuseHistory1 = RequestIndirectDiffuseHistory1(hdCamera, out historyRequireClear);
passData.indirectDiffuseHistory1 = builder.ReadTexture(builder.WriteTexture(renderGraph.ImportTexture(indirectDiffuseHistory1)));
var historyDepthBuffer = halfResolution ? hdCamera.GetCurrentFrameRT((int)HDCameraFrameHistoryType.Depth1) : hdCamera.GetCurrentFrameRT((int)HDCameraFrameHistoryType.Depth);
passData.historyDepthBuffer = historyDepthBuffer != null?builder.ReadTexture(renderGraph.ImportTexture(historyDepthBuffer)) : renderGraph.defaultResources.blackTextureXR;
passData.intermediateBuffer0 = builder.CreateTransientTexture(new TextureDesc(Vector2.one, true, true)
{
colorFormat = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "SSGI Denoiser Intermediate0"
});
passData.intermediateBuffer1 = builder.CreateTransientTexture(new TextureDesc(Vector2.one, true, true)
{
colorFormat = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "SSGI Denoiser Intermediate1"
});
passData.inputOutputBuffer0 = builder.WriteTexture(builder.ReadTexture(inputOutputBuffer0));
passData.inputOutputBuffer1 = builder.WriteTexture(builder.ReadTexture(inputOutputBuffer1));
passData.parameters = PrepareSSGIDenoiserParameters(hdCamera, halfResolution, historyValidity, historyRequireClear, depthMipInfo);
builder.SetRenderFunc(
(DenoiseSSGIPassData data, RenderGraphContext ctx) =>
{
// We need to fill the structure that holds the various resources
SSGIDenoiserResources resources = new SSGIDenoiserResources();
resources.depthTexture = data.depthTexture;
resources.normalBuffer = data.normalBuffer;
resources.motionVectorsBuffer = data.motionVectorsBuffer;
resources.indirectDiffuseHistory0 = data.indirectDiffuseHistory0;
resources.indirectDiffuseHistory1 = data.indirectDiffuseHistory1;
resources.historyDepthBuffer = data.historyDepthBuffer;
resources.intermediateBuffer0 = data.intermediateBuffer0;
resources.intermediateBuffer1 = data.intermediateBuffer1;
resources.inputOutputBuffer0 = data.inputOutputBuffer0;
resources.inputOutputBuffer1 = data.inputOutputBuffer1;
Denoise(ctx.cmd, data.parameters, resources);
});
SSGIDenoiserOutput denoiserOutput = new SSGIDenoiserOutput();
denoiserOutput.outputBuffer0 = inputOutputBuffer0;
denoiserOutput.outputBuffer1 = inputOutputBuffer1;
return(denoiserOutput);
}
}
TextureHandle DenoiseRTGI(RenderGraph renderGraph, HDCamera hdCamera, TextureHandle rtGIBuffer, TextureHandle depthPyramid, TextureHandle normalBuffer, TextureHandle motionVectorBuffer, TextureHandle historyValidationTexture)
{
var giSettings = hdCamera.volumeStack.GetComponent <GlobalIllumination>();
if (giSettings.denoise)
{
// Evaluate the history's validity
float historyValidity0 = EvaluateIndirectDiffuseHistoryValidity0(hdCamera, giSettings.fullResolution, true);
HDTemporalFilter temporalFilter = GetTemporalFilter();
HDDiffuseDenoiser diffuseDenoiser = GetDiffuseDenoiser();
// Run the temporal denoiser
TextureHandle historyBufferHF = renderGraph.ImportTexture(RequestIndirectDiffuseHistoryTextureHF(hdCamera));
TextureHandle denoisedRTGI = temporalFilter.Denoise(renderGraph, hdCamera, singleChannel: false, historyValidity0, rtGIBuffer, renderGraph.defaultResources.blackTextureXR, historyBufferHF, depthPyramid, normalBuffer, motionVectorBuffer, historyValidationTexture);
// Apply the diffuse denoiser
rtGIBuffer = diffuseDenoiser.Denoise(renderGraph, hdCamera, singleChannel: false, kernelSize: giSettings.denoiserRadius, halfResolutionFilter: giSettings.halfResolutionDenoiser, jitterFilter: giSettings.secondDenoiserPass, denoisedRTGI, depthPyramid, normalBuffer, rtGIBuffer);
// If the second pass is requested, do it otherwise blit
if (giSettings.secondDenoiserPass)
{
float historyValidity1 = EvaluateIndirectDiffuseHistoryValidity1(hdCamera, giSettings.fullResolution, true);
// Run the temporal denoiser
TextureHandle historyBufferLF = renderGraph.ImportTexture(RequestIndirectDiffuseHistoryTextureLF(hdCamera));
denoisedRTGI = temporalFilter.Denoise(renderGraph, hdCamera, singleChannel: false, historyValidity1, rtGIBuffer, renderGraph.defaultResources.blackTextureXR, historyBufferLF, depthPyramid, normalBuffer, motionVectorBuffer, historyValidationTexture);
// Apply the diffuse denoiser
rtGIBuffer = diffuseDenoiser.Denoise(renderGraph, hdCamera, singleChannel: false, kernelSize: giSettings.denoiserRadius * 0.5f, halfResolutionFilter: giSettings.halfResolutionDenoiser, jitterFilter: false, denoisedRTGI, depthPyramid, normalBuffer, rtGIBuffer);
// Propagate the history validity for the second buffer
PropagateIndirectDiffuseHistoryValidity1(hdCamera, giSettings.fullResolution, true);
}
// Propagate the history validity for the first buffer
PropagateIndirectDiffuseHistoryValidity0(hdCamera, giSettings.fullResolution, true);
return(rtGIBuffer);
}
else
{
return(rtGIBuffer);
}
}
TextureHandle RenderPostProcess(RenderGraph renderGraph,
PrepassOutput prepassOutput,
TextureHandle inputColor,
TextureHandle backBuffer,
CullingResults cullResults,
HDCamera hdCamera)
{
PostProcessParameters parameters = PreparePostProcess(cullResults, hdCamera);
TextureHandle afterPostProcessBuffer = renderGraph.defaultResources.blackTextureXR;
TextureHandle dest = HDUtils.PostProcessIsFinalPass(parameters.hdCamera) ? backBuffer : renderGraph.CreateTexture(
new TextureDesc(Vector2.one, true, true)
{
colorFormat = GetColorBufferFormat(), name = "Intermediate Postprocess buffer"
});
if (hdCamera.frameSettings.IsEnabled(FrameSettingsField.AfterPostprocess))
{
// We render AfterPostProcess objects first into a separate buffer that will be composited in the final post process pass
using (var builder = renderGraph.AddRenderPass <AfterPostProcessPassData>("After Post-Process", out var passData, ProfilingSampler.Get(HDProfileId.AfterPostProcessing)))
{
passData.parameters = parameters;
passData.afterPostProcessBuffer = builder.UseColorBuffer(renderGraph.CreateTexture(
new TextureDesc(Vector2.one, true, true)
{
colorFormat = GraphicsFormat.R8G8B8A8_SRGB, clearBuffer = true, clearColor = Color.black, name = "OffScreen AfterPostProcess"
}), 0);
if (passData.parameters.useDepthBuffer)
{
passData.depthStencilBuffer = builder.UseDepthBuffer(prepassOutput.depthBuffer, DepthAccess.ReadWrite);
}
passData.opaqueAfterPostprocessRL = builder.UseRendererList(renderGraph.CreateRendererList(passData.parameters.opaqueAfterPPDesc));
passData.transparentAfterPostprocessRL = builder.UseRendererList(renderGraph.CreateRendererList(passData.parameters.transparentAfterPPDesc));
builder.SetRenderFunc(
(AfterPostProcessPassData data, RenderGraphContext ctx) =>
{
RenderAfterPostProcess(data.parameters
, ctx.resources.GetRendererList(data.opaqueAfterPostprocessRL)
, ctx.resources.GetRendererList(data.transparentAfterPostprocessRL)
, ctx.renderContext, ctx.cmd);
});
afterPostProcessBuffer = passData.afterPostProcessBuffer;
}
}
m_PostProcessSystem.Render(
renderGraph,
parameters.hdCamera,
parameters.blueNoise,
inputColor,
afterPostProcessBuffer,
prepassOutput.resolvedDepthBuffer,
prepassOutput.depthPyramidTexture,
prepassOutput.resolvedMotionVectorsBuffer,
dest,
parameters.flipYInPostProcess
);
return(dest);
}
LightingOutput RenderDeferredLighting(RenderGraph renderGraph,
HDCamera hdCamera,
TextureHandle colorBuffer,
TextureHandle depthStencilBuffer,
TextureHandle depthPyramidTexture,
in LightingBuffers lightingBuffers,
TextureHandle DirGenRTGI(RenderGraph renderGraph, HDCamera hdCamera, GlobalIllumination settings, TextureHandle depthPyramid, TextureHandle normalBuffer)
{
using (var builder = renderGraph.AddRenderPass <DirGenRTGIPassData>("Generating the rays for RTGI", out var passData, ProfilingSampler.Get(HDProfileId.RaytracingIndirectDiffuseDirectionGeneration)))
{
builder.EnableAsyncCompute(false);
// Set the camera parameters
passData.texWidth = hdCamera.actualWidth;
passData.texHeight = hdCamera.actualHeight;
passData.viewCount = hdCamera.viewCount;
// Set the generation parameters
passData.fullResolution = settings.fullResolution;
// Grab the right kernel
passData.directionGenCS = m_Asset.renderPipelineRayTracingResources.indirectDiffuseRaytracingCS;
passData.dirGenKernel = settings.fullResolution ? m_RaytracingIndirectDiffuseFullResKernel : m_RaytracingIndirectDiffuseHalfResKernel;
// Grab the additional parameters
passData.ditheredTextureSet = GetBlueNoiseManager().DitheredTextureSet8SPP();
passData.shaderVariablesRayTracingCB = m_ShaderVariablesRayTracingCB;
passData.depthStencilBuffer = builder.ReadTexture(depthPyramid);
passData.normalBuffer = builder.ReadTexture(normalBuffer);
passData.outputBuffer = builder.WriteTexture(renderGraph.CreateTexture(new TextureDesc(Vector2.one, true, true)
{
colorFormat = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "GI Ray Directions"
}));
builder.SetRenderFunc(
(DirGenRTGIPassData data, RenderGraphContext ctx) =>
{
// Inject the ray-tracing sampling data
BlueNoise.BindDitheredTextureSet(ctx.cmd, data.ditheredTextureSet);
// Bind all the required textures
ctx.cmd.SetComputeTextureParam(data.directionGenCS, data.dirGenKernel, HDShaderIDs._DepthTexture, data.depthStencilBuffer);
ctx.cmd.SetComputeTextureParam(data.directionGenCS, data.dirGenKernel, HDShaderIDs._NormalBufferTexture, data.normalBuffer);
// Bind the output buffers
ctx.cmd.SetComputeTextureParam(data.directionGenCS, data.dirGenKernel, HDShaderIDs._RaytracingDirectionBuffer, data.outputBuffer);
int numTilesXHR, numTilesYHR;
if (data.fullResolution)
{
// Evaluate the dispatch parameters
numTilesXHR = (data.texWidth + (rtReflectionsComputeTileSize - 1)) / rtReflectionsComputeTileSize;
numTilesYHR = (data.texHeight + (rtReflectionsComputeTileSize - 1)) / rtReflectionsComputeTileSize;
}
else
{
// Evaluate the dispatch parameters
numTilesXHR = (data.texWidth / 2 + (rtReflectionsComputeTileSize - 1)) / rtReflectionsComputeTileSize;
numTilesYHR = (data.texHeight / 2 + (rtReflectionsComputeTileSize - 1)) / rtReflectionsComputeTileSize;
}
// Compute the directions
ctx.cmd.DispatchCompute(data.directionGenCS, data.dirGenKernel, numTilesXHR, numTilesYHR, data.viewCount);
});
return(passData.outputBuffer);
}
}
void RenderFullScreenDebug(RenderGraph renderGraph, TextureHandle colorBuffer, TextureHandle depthBuffer, CullingResults cull, HDCamera hdCamera)
{
TextureHandle fullscreenDebugOutput = TextureHandle.nullHandle;
ComputeBufferHandle fullscreenDebugBuffer = ComputeBufferHandle.nullHandle;
using (var builder = renderGraph.AddRenderPass <FullScreenDebugPassData>("FullScreen Debug", out var passData))
{
passData.parameters = PrepareFullScreenDebugParameters(hdCamera, cull);
passData.output = builder.WriteTexture(colorBuffer);
passData.depthBuffer = builder.ReadTexture(depthBuffer);
passData.debugBuffer = builder.WriteComputeBuffer(renderGraph.CreateComputeBuffer(new ComputeBufferDesc(hdCamera.actualWidth * hdCamera.actualHeight * hdCamera.viewCount, sizeof(uint))));
passData.rendererList = builder.UseRendererList(renderGraph.CreateRendererList(passData.parameters.rendererList));
builder.SetRenderFunc(
(FullScreenDebugPassData data, RenderGraphContext ctx) =>
{
RenderFullScreenDebug(data.parameters,
data.output,
data.depthBuffer,
data.debugBuffer,
data.rendererList,
ctx.renderContext, ctx.cmd);
});
fullscreenDebugOutput = passData.output;
fullscreenDebugBuffer = passData.debugBuffer;
}
m_DebugFullScreenComputeBuffer = fullscreenDebugBuffer;
PushFullScreenDebugTexture(renderGraph, ResolveMSAAColor(renderGraph, hdCamera, fullscreenDebugOutput));
}
TextureHandle UpscaleRTGI(RenderGraph renderGraph, HDCamera hdCamera, GlobalIllumination settings,
TextureHandle depthPyramid, TextureHandle normalBuffer, TextureHandle indirectDiffuseBuffer, TextureHandle directionBuffer)
{
using (var builder = renderGraph.AddRenderPass <UpscaleRTGIPassData>("Upscale the RTGI result", out var passData, ProfilingSampler.Get(HDProfileId.RaytracingIndirectDiffuseUpscale)))
{
builder.EnableAsyncCompute(false);
// Set the camera parameters
passData.texWidth = hdCamera.actualWidth;
passData.texHeight = hdCamera.actualHeight;
passData.viewCount = hdCamera.viewCount;
// Set the generation parameters
passData.upscaleRadius = settings.upscaleRadius;
// Grab the right kernel
passData.upscaleCS = m_Asset.renderPipelineRayTracingResources.indirectDiffuseRaytracingCS;
passData.upscaleKernel = settings.fullResolution ? m_IndirectDiffuseUpscaleFullResKernel : m_IndirectDiffuseUpscaleHalfResKernel;
// Grab the additional parameters
passData.blueNoiseTexture = GetBlueNoiseManager().textureArray16RGB;
passData.scramblingTexture = m_Asset.renderPipelineResources.textures.scramblingTex;
passData.depthBuffer = builder.ReadTexture(depthPyramid);
passData.normalBuffer = builder.ReadTexture(normalBuffer);
passData.indirectDiffuseBuffer = builder.ReadTexture(indirectDiffuseBuffer);
passData.directionBuffer = builder.ReadTexture(directionBuffer);
passData.outputBuffer = builder.WriteTexture(renderGraph.CreateTexture(new TextureDesc(Vector2.one, true, true)
{
colorFormat = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "Reflection Ray Indirect Diffuse"
}));
builder.SetRenderFunc(
(UpscaleRTGIPassData data, RenderGraphContext ctx) =>
{
// Inject all the parameters for the compute
ctx.cmd.SetComputeTextureParam(data.upscaleCS, data.upscaleKernel, HDShaderIDs._DepthTexture, data.depthBuffer);
ctx.cmd.SetComputeTextureParam(data.upscaleCS, data.upscaleKernel, HDShaderIDs._NormalBufferTexture, data.normalBuffer);
ctx.cmd.SetComputeTextureParam(data.upscaleCS, data.upscaleKernel, HDShaderIDs._IndirectDiffuseTexture, data.indirectDiffuseBuffer);
ctx.cmd.SetComputeTextureParam(data.upscaleCS, data.upscaleKernel, HDShaderIDs._RaytracingDirectionBuffer, data.directionBuffer);
ctx.cmd.SetComputeTextureParam(data.upscaleCS, data.upscaleKernel, HDShaderIDs._BlueNoiseTexture, data.blueNoiseTexture);
ctx.cmd.SetComputeTextureParam(data.upscaleCS, data.upscaleKernel, HDShaderIDs._ScramblingTexture, data.scramblingTexture);
ctx.cmd.SetComputeIntParam(data.upscaleCS, HDShaderIDs._SpatialFilterRadius, data.upscaleRadius);
// Output buffer
ctx.cmd.SetComputeTextureParam(data.upscaleCS, data.upscaleKernel, HDShaderIDs._UpscaledIndirectDiffuseTextureRW, data.outputBuffer);
// Texture dimensions
int texWidth = data.texWidth;
int texHeight = data.texHeight;
// Evaluate the dispatch parameters
int areaTileSize = 8;
int numTilesXHR = (texWidth + (areaTileSize - 1)) / areaTileSize;
int numTilesYHR = (texHeight + (areaTileSize - 1)) / areaTileSize;
// Compute the texture
ctx.cmd.DispatchCompute(data.upscaleCS, data.upscaleKernel, numTilesXHR, numTilesYHR, data.viewCount);
});
return(passData.outputBuffer);
}
}
TextureHandle UpscaleSSGI(RenderGraph renderGraph, HDCamera hdCamera, GlobalIllumination giSettings, TextureHandle depthPyramid, TextureHandle inputBuffer)
{
using (var builder = renderGraph.AddRenderPass <UpscaleSSGIPassData>("Upscale SSGI", out var passData, ProfilingSampler.Get(HDProfileId.SSGIUpscale)))
{
builder.EnableAsyncCompute(false);
passData.parameters = PrepareSSGIUpscaleParameters(hdCamera, giSettings);;
passData.depthTexture = builder.ReadTexture(depthPyramid);
passData.inputBuffer = builder.ReadTexture(inputBuffer);
passData.outputBuffer = builder.WriteTexture(renderGraph.CreateTexture(new TextureDesc(Vector2.one, true, true)
{
colorFormat = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "SSGI Final"
}));
builder.SetRenderFunc(
(UpscaleSSGIPassData data, RenderGraphContext ctx) =>
{
// We need to fill the structure that holds the various resources
SSGIUpscaleResources resources = new SSGIUpscaleResources();
resources.depthTexture = data.depthTexture;
resources.inputBuffer = data.inputBuffer;
resources.outputBuffer = data.outputBuffer;
ExecuteSSGIUpscale(ctx.cmd, data.parameters, resources);
});
return(passData.outputBuffer);
}
}
TextureHandle AdjustRTGIWeight(RenderGraph renderGraph, HDCamera hdCamera, TextureHandle indirectDiffuseBuffer, TextureHandle depthPyramid, TextureHandle stencilBuffer)
{
using (var builder = renderGraph.AddRenderPass <AdjustRTGIWeightPassData>("Adjust the RTGI weight", out var passData, ProfilingSampler.Get(HDProfileId.RaytracingIndirectDiffuseAdjustWeight)))
{
builder.EnableAsyncCompute(false);
// Set the camera parameters
passData.texWidth = hdCamera.actualWidth;
passData.texHeight = hdCamera.actualHeight;
passData.viewCount = hdCamera.viewCount;
// Grab the right kernel
passData.adjustWeightCS = m_Asset.renderPipelineRayTracingResources.indirectDiffuseRaytracingCS;
passData.adjustWeightKernel = m_AdjustIndirectDiffuseWeightKernel;
passData.depthPyramid = builder.ReadTexture(depthPyramid);
passData.stencilBuffer = builder.ReadTexture(stencilBuffer);
passData.indirectDiffuseBuffer = builder.ReadWriteTexture(indirectDiffuseBuffer);
builder.SetRenderFunc(
(AdjustRTGIWeightPassData data, RenderGraphContext ctx) =>
{
// Input data
ctx.cmd.SetComputeTextureParam(data.adjustWeightCS, data.adjustWeightKernel, HDShaderIDs._DepthTexture, data.depthPyramid);
ctx.cmd.SetComputeTextureParam(data.adjustWeightCS, data.adjustWeightKernel, HDShaderIDs._StencilTexture, data.stencilBuffer, 0, RenderTextureSubElement.Stencil);
ctx.cmd.SetComputeIntParams(data.adjustWeightCS, HDShaderIDs._SsrStencilBit, (int)StencilUsage.TraceReflectionRay);
// In/Output buffer
ctx.cmd.SetComputeTextureParam(data.adjustWeightCS, data.adjustWeightKernel, HDShaderIDs._IndirectDiffuseTextureRW, data.indirectDiffuseBuffer);
// Texture dimensions
int texWidth = data.texWidth;
int texHeight = data.texHeight;
// Evaluate the dispatch parameters
int areaTileSize = 8;
int numTilesXHR = (texWidth + (areaTileSize - 1)) / areaTileSize;
int numTilesYHR = (texHeight + (areaTileSize - 1)) / areaTileSize;
// Compute the texture
ctx.cmd.DispatchCompute(data.adjustWeightCS, data.adjustWeightKernel, numTilesXHR, numTilesYHR, data.viewCount);
});
return(passData.indirectDiffuseBuffer);
}
}
public TextureHandle Render(RenderGraph renderGraph, HDCamera hdCamera, TextureHandle depthPyramid, TextureHandle normalBuffer, TextureHandle motionVectors, int frameCount, in HDUtils.PackedMipChainInfo depthMipInfo, ShaderVariablesRaytracing shaderVariablesRaytracing, TextureHandle rayCountTexture)
TextureHandle RenderIndirectDiffusePerformance(RenderGraph renderGraph, HDCamera hdCamera,
TextureHandle depthPyramid, TextureHandle stencilBuffer, TextureHandle normalBuffer, TextureHandle motionVectors, TextureHandle historyValidationTexture,
TextureHandle rayCountTexture, Texture skyTexture,
ShaderVariablesRaytracing shaderVariablesRaytracing)
{
// Pointer to the final result
TextureHandle rtgiResult;
// Fetch all the settings
GlobalIllumination settings = hdCamera.volumeStack.GetComponent <GlobalIllumination>();
TextureHandle directionBuffer = DirGenRTGI(renderGraph, hdCamera, settings, depthPyramid, normalBuffer);
DeferredLightingRTParameters deferredParamters = PrepareIndirectDiffuseDeferredLightingRTParameters(hdCamera);
TextureHandle lightingBuffer = DeferredLightingRT(renderGraph, in deferredParamters, directionBuffer, depthPyramid, normalBuffer, skyTexture, rayCountTexture);
rtgiResult = UpscaleRTGI(renderGraph, hdCamera, settings, depthPyramid, normalBuffer, lightingBuffer, directionBuffer);
// Denoise if required
rtgiResult = DenoiseRTGI(renderGraph, hdCamera, rtgiResult, depthPyramid, normalBuffer, motionVectors, historyValidationTexture);
// Adjust the weight
rtgiResult = AdjustRTGIWeight(renderGraph, hdCamera, rtgiResult, depthPyramid, stencilBuffer);
return(rtgiResult);
}
TextureHandle EvaluateShadowDebugView(RenderGraph renderGraph, HDCamera hdCamera, TextureHandle screenSpaceShadowArray)
{
// If this is the right debug mode and the index we are asking for is in the range
if (!rayTracingSupported || (m_ScreenSpaceShadowChannelSlot <= m_CurrentDebugDisplaySettings.data.screenSpaceShadowIndex))
{
return(m_RenderGraph.defaultResources.blackTextureXR);
}
using (var builder = renderGraph.AddRenderPass <ScreenSpaceShadowDebugPassData>("Screen Space Shadows Debug", out var passData, ProfilingSampler.Get(HDProfileId.ScreenSpaceShadowsDebug)))
{
passData.parameters = PrepareSSShadowDebugParameters(hdCamera, (int)m_CurrentDebugDisplaySettings.data.screenSpaceShadowIndex);
passData.screenSpaceShadowArray = builder.ReadTexture(screenSpaceShadowArray);
passData.outputBuffer = builder.WriteTexture(renderGraph.CreateTexture(new TextureDesc(Vector2.one, true, true)
{
colorFormat = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "EvaluateShadowDebug"
}));
builder.SetRenderFunc(
(ScreenSpaceShadowDebugPassData data, RenderGraphContext context) =>
{
SSShadowDebugResources resources = new SSShadowDebugResources();
resources.screenSpaceShadowArray = data.screenSpaceShadowArray;
resources.outputBuffer = data.outputBuffer;
ExecuteShadowDebugView(context.cmd, data.parameters, resources);
});
return(passData.outputBuffer);
}
}
TextureHandle QualityRTGI(RenderGraph renderGraph, HDCamera hdCamera, TextureHandle depthPyramid, TextureHandle normalBuffer, TextureHandle rayCountTexture)
{
using (var builder = renderGraph.AddRenderPass <TraceQualityRTGIPassData>("Quality RT Indirect Diffuse", out var passData, ProfilingSampler.Get(HDProfileId.RaytracingIndirectDiffuseEvaluation)))
{
builder.EnableAsyncCompute(false);
var settings = hdCamera.volumeStack.GetComponent <GlobalIllumination>();
// Set the camera parameters
passData.texWidth = hdCamera.actualWidth;
passData.texHeight = hdCamera.actualHeight;
passData.viewCount = hdCamera.viewCount;
// Evaluation parameters
passData.rayLength = settings.rayLength;
passData.sampleCount = settings.sampleCount.value;
passData.clampValue = settings.clampValue;
passData.bounceCount = settings.bounceCount.value;
// Grab the additional parameters
passData.indirectDiffuseRT = m_Asset.renderPipelineRayTracingResources.indirectDiffuseRaytracingRT;
passData.accelerationStructure = RequestAccelerationStructure();
passData.lightCluster = RequestLightCluster();
passData.skyTexture = m_SkyManager.GetSkyReflection(hdCamera);
passData.shaderVariablesRayTracingCB = m_ShaderVariablesRayTracingCB;
passData.ditheredTextureSet = GetBlueNoiseManager().DitheredTextureSet8SPP();
passData.depthBuffer = builder.ReadTexture(depthPyramid);
passData.normalBuffer = builder.ReadTexture(normalBuffer);
passData.rayCountTexture = builder.ReadWriteTexture(rayCountTexture);
passData.outputBuffer = builder.WriteTexture(renderGraph.CreateTexture(new TextureDesc(Vector2.one, true, true)
{
colorFormat = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "Ray Traced Indirect Diffuse"
}));
builder.SetRenderFunc(
(TraceQualityRTGIPassData data, RenderGraphContext ctx) =>
{
// Define the shader pass to use for the indirect diffuse pass
ctx.cmd.SetRayTracingShaderPass(data.indirectDiffuseRT, "IndirectDXR");
// Set the acceleration structure for the pass
ctx.cmd.SetRayTracingAccelerationStructure(data.indirectDiffuseRT, HDShaderIDs._RaytracingAccelerationStructureName, data.accelerationStructure);
// Inject the ray-tracing sampling data
BlueNoise.BindDitheredTextureSet(ctx.cmd, data.ditheredTextureSet);
// Set the data for the ray generation
ctx.cmd.SetRayTracingTextureParam(data.indirectDiffuseRT, HDShaderIDs._IndirectDiffuseTextureRW, data.outputBuffer);
ctx.cmd.SetRayTracingTextureParam(data.indirectDiffuseRT, HDShaderIDs._DepthTexture, data.depthBuffer);
ctx.cmd.SetRayTracingTextureParam(data.indirectDiffuseRT, HDShaderIDs._NormalBufferTexture, data.normalBuffer);
// Set ray count texture
ctx.cmd.SetRayTracingTextureParam(data.indirectDiffuseRT, HDShaderIDs._RayCountTexture, data.rayCountTexture);
// LightLoop data
data.lightCluster.BindLightClusterData(ctx.cmd);
// Set the data for the ray miss
ctx.cmd.SetRayTracingTextureParam(data.indirectDiffuseRT, HDShaderIDs._SkyTexture, data.skyTexture);
// Update global constant buffer
data.shaderVariablesRayTracingCB._RaytracingIntensityClamp = data.clampValue;
data.shaderVariablesRayTracingCB._RaytracingIncludeSky = 1;
data.shaderVariablesRayTracingCB._RaytracingRayMaxLength = data.rayLength;
data.shaderVariablesRayTracingCB._RaytracingNumSamples = data.sampleCount;
data.shaderVariablesRayTracingCB._RaytracingMaxRecursion = data.bounceCount;
data.shaderVariablesRayTracingCB._RayTracingDiffuseLightingOnly = 1;
ConstantBuffer.PushGlobal(ctx.cmd, data.shaderVariablesRayTracingCB, HDShaderIDs._ShaderVariablesRaytracing);
// Only use the shader variant that has multi bounce if the bounce count > 1
CoreUtils.SetKeyword(ctx.cmd, "MULTI_BOUNCE_INDIRECT", data.bounceCount > 1);
// Run the computation
ctx.cmd.DispatchRays(data.indirectDiffuseRT, m_RayGenIndirectDiffuseIntegrationName, (uint)data.texWidth, (uint)data.texHeight, (uint)data.viewCount);
// Disable the keywords we do not need anymore
CoreUtils.SetKeyword(ctx.cmd, "MULTI_BOUNCE_INDIRECT", false);
});
return(passData.outputBuffer);
}
}
bool RenderLightScreenSpaceShadows(RenderGraph renderGraph, HDCamera hdCamera, PrepassOutput prepassOutput, TextureHandle depthBuffer, TextureHandle normalBuffer, TextureHandle motionVectorsBuffer, TextureHandle rayCountTexture, TextureHandle screenSpaceShadowArray)
{
// Loop through all the potential screen space light shadows
for (int lightIdx = 0; lightIdx < m_ScreenSpaceShadowIndex; ++lightIdx)
{
// This matches the directional light
if (!m_CurrentScreenSpaceShadowData[lightIdx].valid)
{
continue;
}
// Fetch the light data and additional light data
LightData currentLight = m_lightList.lights[m_CurrentScreenSpaceShadowData[lightIdx].lightDataIndex];
HDAdditionalLightData currentAdditionalLightData = m_CurrentScreenSpaceShadowData[lightIdx].additionalLightData;
// Trigger the right algorithm based on the light type
switch (currentLight.lightType)
{
case GPULightType.Rectangle:
{
RenderAreaScreenSpaceShadow(renderGraph, hdCamera, currentLight, currentAdditionalLightData, m_CurrentScreenSpaceShadowData[lightIdx].lightDataIndex,
prepassOutput, depthBuffer, normalBuffer, motionVectorsBuffer, rayCountTexture, screenSpaceShadowArray);
}
break;
case GPULightType.Point:
case GPULightType.Spot:
{
RenderPunctualScreenSpaceShadow(renderGraph, hdCamera, currentLight, currentAdditionalLightData, m_CurrentScreenSpaceShadowData[lightIdx].lightDataIndex,
prepassOutput, depthBuffer, normalBuffer, motionVectorsBuffer, rayCountTexture, screenSpaceShadowArray);
}
break;
}
}
return(true);
}
TextureHandle RenderIndirectDiffuseQuality(RenderGraph renderGraph, HDCamera hdCamera,
TextureHandle depthPyramid, TextureHandle stencilBuffer, TextureHandle normalBuffer, TextureHandle motionVectors, TextureHandle historyValidationTexture,
TextureHandle rayCountTexture, Texture skyTexture,
ShaderVariablesRaytracing shaderVariablesRaytracing)
{
// Evaluate the signal
TextureHandle rtgiResult = QualityRTGI(renderGraph, hdCamera, depthPyramid, normalBuffer, rayCountTexture);
// Denoise if required
rtgiResult = DenoiseRTGI(renderGraph, hdCamera, rtgiResult, depthPyramid, normalBuffer, motionVectors, historyValidationTexture);
// Adjust the weight
rtgiResult = AdjustRTGIWeight(renderGraph, hdCamera, rtgiResult, depthPyramid, stencilBuffer);
return(rtgiResult);
}
/// <summary>Registers a texture and returns a handle to the texture.</summary>
/// <param name="texture">The texture data.</param>
/// <param name="parameters">The parameters that specify how to process the texture.</param>
/// <param name="handle">Receives the handle to the texture.</param>
/// <returns>Whether loading the texture was successful.</returns>
public virtual bool RegisterTexture(Textures.Texture texture, TextureParameters parameters, out TextureHandle handle) {
handle = null;
return false;
}
TextureHandle ContrastAdaptiveSharpeningPass(RenderGraph renderGraph, HDCamera hdCamera, TextureHandle source)
{
var dynResHandler = DynamicResolutionHandler.instance;
if (dynResHandler.DynamicResolutionEnabled() &&
dynResHandler.filter == DynamicResUpscaleFilter.ContrastAdaptiveSharpen)
{
using (var builder = renderGraph.AddRenderPass <CASData>("Contrast Adaptive Sharpen", out var passData, ProfilingSampler.Get(HDProfileId.ContrastAdaptiveSharpen)))
{
passData.source = builder.ReadTexture(source);
passData.parameters = PrepareContrastAdaptiveSharpeningParameters(hdCamera);
TextureHandle dest = GetPostprocessOutputHandle(renderGraph, "Contrast Adaptive Sharpen Destination");
passData.destination = builder.WriteTexture(dest);;
builder.SetRenderFunc(
(CASData data, RenderGraphContext ctx) =>
{
DoContrastAdaptiveSharpening(data.parameters, ctx.cmd, data.source, data.destination);
});
source = passData.destination;
}
}
return(source);
}
