private void SettingsUI(HDRenderPipeline renderContext)
{
EditorGUILayout.LabelField(styles.settingsLabel);
EditorGUI.indentLevel++;
EditorGUI.BeginChangeCheck();
renderContext.lightLoopProducer = (LightLoopProducer)EditorGUILayout.ObjectField(new GUIContent("Light Loop"), renderContext.lightLoopProducer, typeof(LightLoopProducer), false);
if (EditorGUI.EndChangeCheck())
{
HackSetDirty(renderContext); // Repaint
}
SssSettingsUI(renderContext);
ShadowSettingsUI(renderContext);
TextureSettingsUI(renderContext);
RendereringSettingsUI(renderContext);
//TilePassUI(renderContext);
EditorGUI.indentLevel--;
}
public override void OnInspectorGUI()
{
var renderContext = target as HDRenderPipelineAsset;
HDRenderPipeline renderpipeline = UnityEngine.Experimental.Rendering.RenderPipelineManager.currentPipeline as HDRenderPipeline;
if (!renderContext || renderpipeline == null)
{
return;
}
serializedObject.Update();
EditorGUILayout.LabelField(Styles.defaults, EditorStyles.boldLabel);
EditorGUI.indentLevel++;
EditorGUILayout.PropertyField(m_DefaultDiffuseMaterial, Styles.defaultDiffuseMaterial);
EditorGUILayout.PropertyField(m_DefaultShader, Styles.defaultShader);
EditorGUI.indentLevel--;
SettingsUI(renderContext);
serializedObject.ApplyModifiedProperties();
}
public void Init(RenderPipelineSettings settings, RenderPipelineResources rpResources, HDRenderPipelineRayTracingResources rayTracingResources, BlueNoise blueNoise, HDRenderPipeline renderPipeline, SharedRTManager sharedRTManager, DebugDisplaySettings currentDebugDisplaySettings)
{
// Keep track of the resources
m_Resources = rpResources;
m_RTResources = rayTracingResources;
// Keep track of the settings
m_Settings = settings;
// Keep track of the render pipeline
m_RenderPipeline = renderPipeline;
// Keep track of the shared RT manager
m_SharedRTManager = sharedRTManager;
// Keep track of the blue noise manager
m_BlueNoise = blueNoise;
// Create the list of environments
m_Environments = new List <HDRaytracingEnvironment>();
// Grab all the ray-tracing graphs that have been created before (in case the order of initialization has not been respected, which happens when we open unity the first time)
HDRaytracingEnvironment[] environmentArray = Object.FindObjectsOfType <HDRaytracingEnvironment>();
for (int envIdx = 0; envIdx < environmentArray.Length; ++envIdx)
{
RegisterEnvironment(environmentArray[envIdx]);
}
// Init the ray count manager
m_RayCountManager.Init(rayTracingResources, currentDebugDisplaySettings);
#if UNITY_EDITOR
// We need to invalidate the acceleration structures in case the hierarchy changed
EditorApplication.hierarchyChanged += OnHierarchyChanged;
#endif
}
private void DebuggingUI(HDRenderPipeline renderContext, HDRenderPipelineInstance renderpipelineInstance)
{
EditorGUILayout.LabelField(styles.debugging);
// Debug Display settings
EditorGUI.indentLevel++;
EditorGUILayout.PropertyField(m_DebugDisplayMode, styles.debugDisplayMode);
m_DebugOverlayRatio.floatValue = EditorGUILayout.Slider(styles.debugOverlayRatio, m_DebugOverlayRatio.floatValue, 0.1f, 1.0f);
EditorGUILayout.Space();
RenderingDebugSettingsUI(renderContext);
if ((DebugDisplayMode)m_DebugDisplayMode.intValue == DebugDisplayMode.ViewMaterial)
{
MaterialDebugSettingsUI(renderContext);
}
else
{
LightingDebugSettingsUI(renderContext, renderpipelineInstance);
}
EditorGUILayout.Space();
EditorGUI.indentLevel--;
}
// Combines specular lighting and diffuse lighting with subsurface scattering.
public void SubsurfaceScatteringPass(HDCamera hdCamera, CommandBuffer cmd, SubsurfaceScatteringSettings sssParameters, FrameSettings frameSettings,
RenderTargetIdentifier colorBufferRT, RenderTargetIdentifier diffuseBufferRT, RenderTargetIdentifier depthStencilBufferRT, RenderTargetIdentifier depthTextureRT)
{
if (sssParameters == null || !frameSettings.enableSSSAndTransmission)
{
return;
}
using (new ProfilingSample(cmd, "Subsurface Scattering", HDRenderPipeline.GetSampler(CustomSamplerId.SubsurfaceScattering)))
{
int w = hdCamera.camera.pixelWidth;
int h = hdCamera.camera.pixelHeight;
// For Jimenez we always need an extra buffer, for Disney it depends on platform
if (!sssParameters.useDisneySSS ||
(sssParameters.useDisneySSS && NeedTemporarySubsurfaceBuffer()))
{
// Caution: must be same format as m_CameraSssDiffuseLightingBuffer
cmd.ReleaseTemporaryRT(m_CameraFilteringBuffer);
cmd.GetTemporaryRT(m_CameraFilteringBuffer, w, h, 0, FilterMode.Point, RenderTextureFormat.RGB111110Float, RenderTextureReadWrite.Linear, 1, true); // Enable UAV
// Clear the SSS filtering target
using (new ProfilingSample(cmd, "Clear SSS filtering target", HDRenderPipeline.GetSampler(CustomSamplerId.ClearSSSFilteringTarget)))
{
CoreUtils.SetRenderTarget(cmd, m_CameraFilteringBufferRT, ClearFlag.Color, CoreUtils.clearColorAllBlack);
}
}
if (sssParameters.useDisneySSS)
{
using (new ProfilingSample(cmd, "HTile for SSS", HDRenderPipeline.GetSampler(CustomSamplerId.HTileForSSS)))
{
// Currently, Unity does not offer a way to access the GCN HTile even on PS4 and Xbox One.
// Therefore, it's computed in a pixel shader, and optimized to only contain the SSS bit.
CoreUtils.SetRenderTarget(cmd, m_HTileRT, ClearFlag.Color, CoreUtils.clearColorAllBlack);
cmd.SetRandomWriteTarget(1, m_HTile);
// Generate HTile for the split lighting stencil usage. Don't write into stencil texture (shaderPassId = 2)
// Use ShaderPassID 1 => "Pass 2 - Export HTILE for stencilRef to output"
CoreUtils.SetRenderTarget(cmd, depthStencilBufferRT); // No need for color buffer here
CoreUtils.DrawFullScreen(cmd, m_CopyStencilForSplitLighting, null, 2);
cmd.ClearRandomWriteTargets();
}
// TODO: Remove this once fix, see comment inside the function
hdCamera.SetupComputeShader(m_SubsurfaceScatteringCS, cmd);
unsafe
{
// Warning: Unity is not able to losslessly transfer integers larger than 2^24 to the shader system.
// Therefore, we bitcast uint to float in C#, and bitcast back to uint in the shader.
uint texturingModeFlags = sssParameters.texturingModeFlags;
cmd.SetComputeFloatParam(m_SubsurfaceScatteringCS, HDShaderIDs._TexturingModeFlags, *(float *)&texturingModeFlags);
}
cmd.SetComputeVectorArrayParam(m_SubsurfaceScatteringCS, HDShaderIDs._WorldScales, sssParameters.worldScales);
cmd.SetComputeVectorArrayParam(m_SubsurfaceScatteringCS, HDShaderIDs._FilterKernels, sssParameters.filterKernels);
cmd.SetComputeVectorArrayParam(m_SubsurfaceScatteringCS, HDShaderIDs._ShapeParams, sssParameters.shapeParams);
cmd.SetComputeTextureParam(m_SubsurfaceScatteringCS, m_SubsurfaceScatteringKernel, HDShaderIDs._DepthTexture, depthTextureRT);
cmd.SetComputeTextureParam(m_SubsurfaceScatteringCS, m_SubsurfaceScatteringKernel, HDShaderIDs._SSSHTile, m_HTileRT);
cmd.SetComputeTextureParam(m_SubsurfaceScatteringCS, m_SubsurfaceScatteringKernel, HDShaderIDs._IrradianceSource, diffuseBufferRT);
for (int i = 0; i < sssBufferCount; ++i)
{
cmd.SetComputeTextureParam(m_SubsurfaceScatteringCS, m_SubsurfaceScatteringKernel, HDShaderIDs._SSSBufferTexture[i], GetSSSBuffers(i));
}
if (NeedTemporarySubsurfaceBuffer())
{
// Caution: must be same format as m_CameraSssDiffuseLightingBuffer
cmd.ReleaseTemporaryRT(m_CameraFilteringBuffer);
cmd.GetTemporaryRT(m_CameraFilteringBuffer, w, h, 0, FilterMode.Point, RenderTextureFormat.RGB111110Float, RenderTextureReadWrite.Linear, 1, true); // Enable UAV
// Clear the SSS filtering target
using (new ProfilingSample(cmd, "Clear SSS filtering target", HDRenderPipeline.GetSampler(CustomSamplerId.ClearSSSFilteringTarget)))
{
CoreUtils.SetRenderTarget(cmd, m_CameraFilteringBufferRT, ClearFlag.Color, CoreUtils.clearColorAllBlack);
}
cmd.SetComputeTextureParam(m_SubsurfaceScatteringCS, m_SubsurfaceScatteringKernel, HDShaderIDs._CameraFilteringBuffer, m_CameraFilteringBufferRT);
// Perform the SSS filtering pass which fills 'm_CameraFilteringBufferRT'.
// We dispatch 4x swizzled 16x16 groups per a 32x32 macro tile.
cmd.DispatchCompute(m_SubsurfaceScatteringCS, m_SubsurfaceScatteringKernel, 4, ((int)hdCamera.screenSize.x + 31) / 32, ((int)hdCamera.screenSize.y + 31) / 32);
cmd.SetGlobalTexture(HDShaderIDs._IrradianceSource, m_CameraFilteringBufferRT); // Cannot set a RT on a material
// Additively blend diffuse and specular lighting into 'm_CameraColorBufferRT'.
CoreUtils.DrawFullScreen(cmd, m_CombineLightingPass, colorBufferRT, depthStencilBufferRT);
}
else
{
cmd.SetComputeTextureParam(m_SubsurfaceScatteringCS, m_SubsurfaceScatteringKernel, HDShaderIDs._CameraColorTexture, colorBufferRT);
// Perform the SSS filtering pass which performs an in-place update of 'colorBuffer'.
// We dispatch 4x swizzled 16x16 groups per a 32x32 macro tile.
cmd.DispatchCompute(m_SubsurfaceScatteringCS, m_SubsurfaceScatteringKernel, 4, ((int)hdCamera.screenSize.x + 31) / 32, ((int)hdCamera.screenSize.y + 31) / 32);
}
}
else
{
for (int i = 0; i < sssBufferCount; ++i)
{
cmd.SetGlobalTexture(HDShaderIDs._SSSBufferTexture[i], GetSSSBuffers(i));
}
cmd.SetGlobalTexture(HDShaderIDs._IrradianceSource, diffuseBufferRT); // Cannot set a RT on a material
m_SssVerticalFilterPass.SetVectorArray(HDShaderIDs._FilterKernelsBasic, sssParameters.filterKernelsBasic);
m_SssVerticalFilterPass.SetVectorArray(HDShaderIDs._HalfRcpWeightedVariances, sssParameters.halfRcpWeightedVariances);
// Perform the vertical SSS filtering pass which fills 'm_CameraFilteringBufferRT'.
CoreUtils.DrawFullScreen(cmd, m_SssVerticalFilterPass, m_CameraFilteringBufferRT, depthStencilBufferRT);
cmd.SetGlobalTexture(HDShaderIDs._IrradianceSource, m_CameraFilteringBufferRT); // Cannot set a RT on a material
m_SssHorizontalFilterAndCombinePass.SetVectorArray(HDShaderIDs._FilterKernelsBasic, sssParameters.filterKernelsBasic);
m_SssHorizontalFilterAndCombinePass.SetVectorArray(HDShaderIDs._HalfRcpWeightedVariances, sssParameters.halfRcpWeightedVariances);
// Perform the horizontal SSS filtering pass, and combine diffuse and specular lighting into 'm_CameraColorBufferRT'.
CoreUtils.DrawFullScreen(cmd, m_SssHorizontalFilterAndCombinePass, colorBufferRT, depthStencilBufferRT);
}
}
}
public HDRenderPipelineInstance(HDRenderPipeline owner)
{
m_Owner = owner;
m_CameraColorBuffer = Shader.PropertyToID("_CameraColorTexture");
m_CameraSubsurfaceBuffer = Shader.PropertyToID("_CameraSubsurfaceTexture");
m_CameraFilteringBuffer = Shader.PropertyToID("_CameraFilteringBuffer");
m_CameraDepthStencilBuffer = Shader.PropertyToID("_CameraDepthTexture");
m_CameraDepthStencilBufferCopy = Shader.PropertyToID("_CameraDepthTextureCopy");
m_CameraStencilBuffer = Shader.PropertyToID("_CameraStencilTexture");
m_CameraColorBufferRT = new RenderTargetIdentifier(m_CameraColorBuffer);
m_CameraSubsurfaceBufferRT = new RenderTargetIdentifier(m_CameraSubsurfaceBuffer);
m_CameraFilteringBufferRT = new RenderTargetIdentifier(m_CameraFilteringBuffer);
m_CameraDepthStencilBufferRT = new RenderTargetIdentifier(m_CameraDepthStencilBuffer);
m_CameraDepthStencilBufferCopyRT = new RenderTargetIdentifier(m_CameraDepthStencilBufferCopy);
m_CameraStencilBufferRT = new RenderTargetIdentifier(m_CameraStencilBuffer);
m_DebugViewMaterialGBuffer = Utilities.CreateEngineMaterial("Hidden/HDRenderPipeline/DebugViewMaterialGBuffer");
m_FilterSubsurfaceScattering = Utilities.CreateEngineMaterial("Hidden/HDRenderPipeline/CombineSubsurfaceScattering");
m_FilterSubsurfaceScattering.DisableKeyword("FILTER_HORIZONTAL");
m_FilterSubsurfaceScattering.SetFloat("_DstBlend", (float)BlendMode.Zero);
m_FilterAndCombineSubsurfaceScattering = Utilities.CreateEngineMaterial("Hidden/HDRenderPipeline/CombineSubsurfaceScattering");
m_FilterSubsurfaceScattering.EnableKeyword("FILTER_HORIZONTAL");
m_FilterAndCombineSubsurfaceScattering.SetFloat("_DstBlend", (float)BlendMode.One);
m_DebugDisplayShadowMap = Utilities.CreateEngineMaterial("Hidden/HDRenderPipeline/DebugDisplayShadowMap");
m_ShadowPass = new ShadowRenderPass(owner.shadowSettings);
// Init Gbuffer description
m_gbufferManager.gbufferCount = m_LitRenderLoop.GetMaterialGBufferCount();
RenderTextureFormat[] RTFormat;
RenderTextureReadWrite[] RTReadWrite;
m_LitRenderLoop.GetMaterialGBufferDescription(out RTFormat, out RTReadWrite);
for (int gbufferIndex = 0; gbufferIndex < m_gbufferManager.gbufferCount; ++gbufferIndex)
{
m_gbufferManager.SetBufferDescription(gbufferIndex, "_GBufferTexture" + gbufferIndex, RTFormat[gbufferIndex], RTReadWrite[gbufferIndex]);
}
m_VelocityBuffer = Shader.PropertyToID("_VelocityTexture");
if (ShaderConfig.s_VelocityInGbuffer == 1)
{
// If velocity is in GBuffer then it is in the last RT. Assign a different name to it.
m_gbufferManager.SetBufferDescription(m_gbufferManager.gbufferCount, "_VelocityTexture", Builtin.RenderLoop.GetVelocityBufferFormat(), Builtin.RenderLoop.GetVelocityBufferReadWrite());
m_gbufferManager.gbufferCount++;
}
m_VelocityBufferRT = new RenderTargetIdentifier(m_VelocityBuffer);
m_DistortionBuffer = Shader.PropertyToID("_DistortionTexture");
m_DistortionBufferRT = new RenderTargetIdentifier(m_DistortionBuffer);
m_LitRenderLoop.Build();
if (owner.lightLoopProducer)
{
m_LightLoop = owner.lightLoopProducer.CreateLightLoop();
}
if (m_LightLoop != null)
{
m_LightLoop.Build(owner.textureSettings);
}
m_SkyManager.Build();
m_SkyManager.skySettings = owner.skySettingsToUse;
}
public bool RenderAreaShadows(HDCamera hdCamera, CommandBuffer cmd, ScriptableRenderContext renderContext, uint frameCount)
{
// NOTE: Here we cannot clear the area shadow texture because it is a texture array. So we need to bind it and make sure no material will try to read it in the shaders
BindShadowTexture(cmd);
// Let's check all the resources and states to see if we should render the effect
HDRaytracingEnvironment rtEnvironement = m_RaytracingManager.CurrentEnvironment();
RaytracingShader shadowRaytrace = m_PipelineAsset.renderPipelineResources.shaders.areaShadowsRaytracingRT;
ComputeShader shadowsCompute = m_PipelineAsset.renderPipelineResources.shaders.areaShadowRaytracingCS;
ComputeShader shadowFilter = m_PipelineAsset.renderPipelineResources.shaders.areaShadowFilterCS;
// Make sure everything is valid
bool invalidState = rtEnvironement == null || rtEnvironement.raytracedShadows == false ||
hdCamera.frameSettings.litShaderMode != LitShaderMode.Deferred ||
shadowRaytrace == null || shadowsCompute == null || shadowFilter == null ||
m_PipelineResources.textures.owenScrambledTex == null || m_PipelineResources.textures.scramblingTex == null;
// If invalid state or ray-tracing acceleration structure, we stop right away
if (invalidState)
{
return(false);
}
// Grab the TAA history buffers (SN/UN and Analytic value)
RTHandleSystem.RTHandle areaShadowHistoryArray = hdCamera.GetCurrentFrameRT((int)HDCameraFrameHistoryType.RaytracedAreaShadow)
?? hdCamera.AllocHistoryFrameRT((int)HDCameraFrameHistoryType.RaytracedAreaShadow, AreaShadowHistoryBufferAllocatorFunction, 1);
RTHandleSystem.RTHandle areaAnalyticHistoryArray = hdCamera.GetCurrentFrameRT((int)HDCameraFrameHistoryType.RaytracedAreaAnalytic)
?? hdCamera.AllocHistoryFrameRT((int)HDCameraFrameHistoryType.RaytracedAreaAnalytic, AreaAnalyticHistoryBufferAllocatorFunction, 1);
// Grab the acceleration structure for the target camera
RaytracingAccelerationStructure accelerationStructure = m_RaytracingManager.RequestAccelerationStructure(rtEnvironement.shadowLayerMask);
// Define the shader pass to use for the reflection pass
cmd.SetRaytracingShaderPass(shadowRaytrace, "VisibilityDXR");
// Set the acceleration structure for the pass
cmd.SetRaytracingAccelerationStructure(shadowRaytrace, HDShaderIDs._RaytracingAccelerationStructureName, accelerationStructure);
// Inject the ray-tracing sampling data
cmd.SetGlobalTexture(HDShaderIDs._OwenScrambledTexture, m_PipelineResources.textures.owenScrambledTex);
cmd.SetGlobalTexture(HDShaderIDs._ScramblingTexture, m_PipelineResources.textures.scramblingTex);
int frameIndex = hdCamera.IsTAAEnabled() ? hdCamera.taaFrameIndex : (int)frameCount % 8;
cmd.SetGlobalInt(HDShaderIDs._RaytracingFrameIndex, frameIndex);
// Grab the Filtering Kernels
int copyTAAHistoryKernel = shadowFilter.FindKernel("AreaShadowCopyTAAHistory");
int applyTAAKernel = shadowFilter.FindKernel("AreaShadowApplyTAA");
int updateAnalyticHistory = shadowFilter.FindKernel("AreaAnalyticHistoryUpdate");
int estimateNoiseKernel = shadowFilter.FindKernel("AreaShadowEstimateNoise");
int firstDenoiseKernel = shadowFilter.FindKernel("AreaShadowDenoiseFirstPass");
int secondDenoiseKernel = shadowFilter.FindKernel("AreaShadowDenoiseSecondPass");
// Texture dimensions
int texWidth = hdCamera.actualWidth;
int texHeight = hdCamera.actualHeight;
// Evaluate the dispatch parameters
int areaTileSize = 8;
int numTilesX = (texWidth + (areaTileSize - 1)) / areaTileSize;
int numTilesY = (texHeight + (areaTileSize - 1)) / areaTileSize;
// Inject the ray generation data
cmd.SetGlobalFloat(HDShaderIDs._RaytracingRayBias, rtEnvironement.rayBias);
int numLights = m_LightLoop.m_lightList.lights.Count;
for (int lightIdx = 0; lightIdx < numLights; ++lightIdx)
{
// If this is not a rectangular area light or it won't have shadows, skip it
if (m_LightLoop.m_lightList.lights[lightIdx].lightType != GPULightType.Rectangle || m_LightLoop.m_lightList.lights[lightIdx].rayTracedAreaShadowIndex == -1)
{
continue;
}
using (new ProfilingSample(cmd, "Raytrace Area Shadow", CustomSamplerId.RaytracingShadowIntegration.GetSampler()))
{
LightData currentLight = m_LightLoop.m_lightList.lights[lightIdx];
// We need to build the world to area light matrix
worldToLocalArea.SetColumn(0, currentLight.right);
worldToLocalArea.SetColumn(1, currentLight.up);
worldToLocalArea.SetColumn(2, currentLight.forward);
// Compensate the relative rendering if active
Vector3 lightPositionWS = currentLight.positionRWS;
if (ShaderConfig.s_CameraRelativeRendering != 0)
{
lightPositionWS += hdCamera.camera.transform.position;
}
worldToLocalArea.SetColumn(3, lightPositionWS);
worldToLocalArea.m33 = 1.0f;
worldToLocalArea = worldToLocalArea.inverse;
// We have noticed from extensive profiling that ray-trace shaders are not as effective for running per-pixel computation. In order to reduce that,
// we do a first prepass that compute the analytic term and probability and generates the first integration sample
if (rtEnvironement.splitIntegration)
{
int shadowComputeKernel = shadowsCompute.FindKernel("RaytracingAreaShadowPrepass");
// This pass evaluates the analytic value and the generates and outputs the first sample
cmd.SetComputeBufferParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._LightDatas, m_LightLoop.lightDatas);
cmd.SetComputeIntParam(shadowsCompute, HDShaderIDs._RaytracingTargetAreaLight, lightIdx);
cmd.SetComputeIntParam(shadowsCompute, HDShaderIDs._RaytracingNumSamples, rtEnvironement.shadowNumSamples);
cmd.SetComputeMatrixParam(shadowsCompute, HDShaderIDs._RaytracingAreaWorldToLocal, worldToLocalArea);
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthStencilBuffer());
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._NormalBufferTexture, m_SharedRTManager.GetNormalBuffer());
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._GBufferTexture[0], m_GbufferManager.GetBuffer(0));
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._GBufferTexture[1], m_GbufferManager.GetBuffer(1));
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._GBufferTexture[2], m_GbufferManager.GetBuffer(2));
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._GBufferTexture[3], m_GbufferManager.GetBuffer(3));
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._AreaCookieTextures, m_LightLoop.areaLightCookieManager.GetTexCache());
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._RaytracedAreaShadowIntegration, m_DenoiseBuffer0);
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._RaytracedAreaShadowSample, m_DenoiseBuffer1);
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._RaytracingDirectionBuffer, m_RaytracingDirectionBuffer);
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._RaytracingDistanceBuffer, m_RaytracingDistanceBuffer);
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._AnalyticProbBuffer, m_AnalyticProbBuffer);
cmd.DispatchCompute(shadowsCompute, shadowComputeKernel, numTilesX, numTilesY, 1);
// This pass will use the previously generated sample and add it to the integration buffer
cmd.SetRaytracingBufferParam(shadowRaytrace, m_RayGenShadowSingleName, HDShaderIDs._LightDatas, m_LightLoop.lightDatas);
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShadowSingleName, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthStencilBuffer());
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShadowSingleName, HDShaderIDs._RaytracedAreaShadowSample, m_DenoiseBuffer1);
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShadowSingleName, HDShaderIDs._RaytracedAreaShadowIntegration, m_DenoiseBuffer0);
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShadowSingleName, HDShaderIDs._RaytracingDirectionBuffer, m_RaytracingDirectionBuffer);
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShadowSingleName, HDShaderIDs._RaytracingDistanceBuffer, m_RaytracingDistanceBuffer);
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShadowSingleName, HDShaderIDs._AnalyticProbBuffer, m_AnalyticProbBuffer);
cmd.DispatchRays(shadowRaytrace, m_RayGenShadowSingleName, (uint)hdCamera.actualWidth, (uint)hdCamera.actualHeight, 1);
// Let's do the following samples (if any)
for (int sampleIndex = 1; sampleIndex < rtEnvironement.shadowNumSamples; ++sampleIndex)
{
shadowComputeKernel = shadowsCompute.FindKernel("RaytracingAreaShadowNewSample");
// This pass generates a new sample based on the initial pre-pass
cmd.SetComputeBufferParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._LightDatas, m_LightLoop.lightDatas);
cmd.SetComputeIntParam(shadowsCompute, HDShaderIDs._RaytracingTargetAreaLight, lightIdx);
cmd.SetComputeIntParam(shadowsCompute, HDShaderIDs._RaytracingNumSamples, rtEnvironement.shadowNumSamples);
cmd.SetComputeIntParam(shadowsCompute, HDShaderIDs._RaytracingSampleIndex, sampleIndex);
cmd.SetComputeMatrixParam(shadowsCompute, HDShaderIDs._RaytracingAreaWorldToLocal, worldToLocalArea);
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthStencilBuffer());
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._NormalBufferTexture, m_SharedRTManager.GetNormalBuffer());
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._GBufferTexture[0], m_GbufferManager.GetBuffer(0));
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._GBufferTexture[1], m_GbufferManager.GetBuffer(1));
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._GBufferTexture[2], m_GbufferManager.GetBuffer(2));
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._GBufferTexture[3], m_GbufferManager.GetBuffer(3));
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._AreaCookieTextures, m_LightLoop.areaLightCookieManager.GetTexCache());
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._RaytracedAreaShadowIntegration, m_DenoiseBuffer0);
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._RaytracedAreaShadowSample, m_DenoiseBuffer1);
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._RaytracingDirectionBuffer, m_RaytracingDirectionBuffer);
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._RaytracingDistanceBuffer, m_RaytracingDistanceBuffer);
cmd.SetComputeTextureParam(shadowsCompute, shadowComputeKernel, HDShaderIDs._AnalyticProbBuffer, m_AnalyticProbBuffer);
cmd.DispatchCompute(shadowsCompute, shadowComputeKernel, numTilesX, numTilesY, 1);
// This pass will use the previously generated sample and add it to the integration buffer
cmd.SetRaytracingBufferParam(shadowRaytrace, m_RayGenShadowSingleName, HDShaderIDs._LightDatas, m_LightLoop.lightDatas);
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShadowSingleName, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthStencilBuffer());
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShadowSingleName, HDShaderIDs._RaytracedAreaShadowSample, m_DenoiseBuffer1);
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShadowSingleName, HDShaderIDs._RaytracedAreaShadowIntegration, m_DenoiseBuffer0);
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShadowSingleName, HDShaderIDs._RaytracingDirectionBuffer, m_RaytracingDirectionBuffer);
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShadowSingleName, HDShaderIDs._RaytracingDistanceBuffer, m_RaytracingDistanceBuffer);
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShadowSingleName, HDShaderIDs._AnalyticProbBuffer, m_AnalyticProbBuffer);
cmd.DispatchRays(shadowRaytrace, m_RayGenShadowSingleName, (uint)hdCamera.actualWidth, (uint)hdCamera.actualHeight, 1);
}
}
else
{
// This pass generates the analytic value and will do the full integration
cmd.SetRaytracingBufferParam(shadowRaytrace, m_RayGenShaderName, HDShaderIDs._LightDatas, m_LightLoop.lightDatas);
cmd.SetRaytracingIntParam(shadowRaytrace, HDShaderIDs._RaytracingTargetAreaLight, lightIdx);
cmd.SetRaytracingIntParam(shadowRaytrace, HDShaderIDs._RaytracingNumSamples, rtEnvironement.shadowNumSamples);
cmd.SetRaytracingMatrixParam(shadowRaytrace, HDShaderIDs._RaytracingAreaWorldToLocal, worldToLocalArea);
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShaderName, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthStencilBuffer());
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShaderName, HDShaderIDs._NormalBufferTexture, m_SharedRTManager.GetNormalBuffer());
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShaderName, HDShaderIDs._GBufferTexture[0], m_GbufferManager.GetBuffer(0));
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShaderName, HDShaderIDs._GBufferTexture[1], m_GbufferManager.GetBuffer(1));
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShaderName, HDShaderIDs._GBufferTexture[2], m_GbufferManager.GetBuffer(2));
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShaderName, HDShaderIDs._GBufferTexture[3], m_GbufferManager.GetBuffer(3));
cmd.SetRaytracingIntParam(shadowRaytrace, HDShaderIDs._RayCountEnabled, m_RaytracingManager.rayCountManager.RayCountIsEnabled());
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShaderName, HDShaderIDs._RayCountTexture, m_RaytracingManager.rayCountManager.rayCountTexture);
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShaderName, HDShaderIDs._AreaCookieTextures, m_LightLoop.areaLightCookieManager.GetTexCache());
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShaderName, HDShaderIDs._AnalyticProbBuffer, m_AnalyticProbBuffer);
cmd.SetRaytracingTextureParam(shadowRaytrace, m_RayGenShaderName, HDShaderIDs._RaytracedAreaShadowIntegration, m_DenoiseBuffer0);
cmd.DispatchRays(shadowRaytrace, m_RayGenShaderName, (uint)hdCamera.actualWidth, (uint)hdCamera.actualHeight, 1);
}
}
using (new ProfilingSample(cmd, "Combine Area Shadow", CustomSamplerId.RaytracingShadowCombination.GetSampler()))
{
// Global parameters
cmd.SetComputeIntParam(shadowFilter, HDShaderIDs._RaytracingDenoiseRadius, rtEnvironement.shadowFilterRadius);
cmd.SetComputeIntParam(shadowFilter, HDShaderIDs._RaytracingShadowSlot, m_LightLoop.m_lightList.lights[lightIdx].rayTracedAreaShadowIndex);
// Given that we can't read and write into the same buffer, we store the current frame value and the history in the denoisebuffer1
cmd.SetComputeTextureParam(shadowFilter, copyTAAHistoryKernel, HDShaderIDs._AreaShadowHistoryRW, areaShadowHistoryArray);
cmd.SetComputeTextureParam(shadowFilter, copyTAAHistoryKernel, HDShaderIDs._DenoiseInputTexture, m_DenoiseBuffer0);
cmd.SetComputeTextureParam(shadowFilter, copyTAAHistoryKernel, HDShaderIDs._DenoiseOutputTextureRW, m_DenoiseBuffer1);
cmd.DispatchCompute(shadowFilter, copyTAAHistoryKernel, numTilesX, numTilesY, 1);
// Apply a vectorized temporal filtering pass and store it back in the denoisebuffer0 with the analytic value in the third channel
var historyScale = new Vector2(hdCamera.actualWidth / (float)areaShadowHistoryArray.rt.width, hdCamera.actualHeight / (float)areaShadowHistoryArray.rt.height);
cmd.SetComputeVectorParam(shadowFilter, HDShaderIDs._ScreenToTargetScaleHistory, historyScale);
cmd.SetComputeTextureParam(shadowFilter, applyTAAKernel, HDShaderIDs._AnalyticProbBuffer, m_AnalyticProbBuffer);
cmd.SetComputeTextureParam(shadowFilter, applyTAAKernel, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthStencilBuffer());
cmd.SetComputeTextureParam(shadowFilter, applyTAAKernel, HDShaderIDs._AnalyticHistoryBuffer, areaAnalyticHistoryArray);
cmd.SetComputeTextureParam(shadowFilter, applyTAAKernel, HDShaderIDs._DenoiseInputTexture, m_DenoiseBuffer1);
cmd.SetComputeTextureParam(shadowFilter, applyTAAKernel, HDShaderIDs._DenoiseOutputTextureRW, m_DenoiseBuffer0);
cmd.SetComputeTextureParam(shadowFilter, applyTAAKernel, HDShaderIDs._AreaShadowHistoryRW, areaShadowHistoryArray);
cmd.DispatchCompute(shadowFilter, applyTAAKernel, numTilesX, numTilesY, 1);
// Now that we do not need it anymore, update the anyltic history
cmd.SetComputeTextureParam(shadowFilter, updateAnalyticHistory, HDShaderIDs._AnalyticHistoryBuffer, areaAnalyticHistoryArray);
cmd.SetComputeTextureParam(shadowFilter, updateAnalyticHistory, HDShaderIDs._AnalyticProbBuffer, m_AnalyticProbBuffer);
cmd.DispatchCompute(shadowFilter, updateAnalyticHistory, numTilesX, numTilesY, 1);
if (rtEnvironement.shadowFilterRadius > 0)
{
// Inject parameters for noise estimation
cmd.SetComputeTextureParam(shadowFilter, estimateNoiseKernel, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthStencilBuffer());
cmd.SetComputeTextureParam(shadowFilter, estimateNoiseKernel, HDShaderIDs._NormalBufferTexture, m_SharedRTManager.GetNormalBuffer());
cmd.SetComputeTextureParam(shadowFilter, estimateNoiseKernel, HDShaderIDs._ScramblingTexture, m_PipelineResources.textures.scramblingTex);
// Noise estimation pre-pass
cmd.SetComputeTextureParam(shadowFilter, estimateNoiseKernel, HDShaderIDs._DenoiseInputTexture, m_DenoiseBuffer0);
cmd.SetComputeTextureParam(shadowFilter, estimateNoiseKernel, HDShaderIDs._DenoiseOutputTextureRW, m_DenoiseBuffer1);
cmd.DispatchCompute(shadowFilter, estimateNoiseKernel, numTilesX, numTilesY, 1);
// Reinject parameters for denoising
cmd.SetComputeTextureParam(shadowFilter, firstDenoiseKernel, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthStencilBuffer());
cmd.SetComputeTextureParam(shadowFilter, firstDenoiseKernel, HDShaderIDs._NormalBufferTexture, m_SharedRTManager.GetNormalBuffer());
cmd.SetComputeTextureParam(shadowFilter, firstDenoiseKernel, HDShaderIDs._AreaShadowTextureRW, m_AreaShadowTextureArray);
// First denoising pass
cmd.SetComputeTextureParam(shadowFilter, firstDenoiseKernel, HDShaderIDs._DenoiseInputTexture, m_DenoiseBuffer1);
cmd.SetComputeTextureParam(shadowFilter, firstDenoiseKernel, HDShaderIDs._DenoiseOutputTextureRW, m_DenoiseBuffer0);
cmd.DispatchCompute(shadowFilter, firstDenoiseKernel, numTilesX, numTilesY, 1);
}
// Reinject parameters for denoising
cmd.SetComputeTextureParam(shadowFilter, secondDenoiseKernel, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthStencilBuffer());
cmd.SetComputeTextureParam(shadowFilter, secondDenoiseKernel, HDShaderIDs._NormalBufferTexture, m_SharedRTManager.GetNormalBuffer());
cmd.SetComputeTextureParam(shadowFilter, secondDenoiseKernel, HDShaderIDs._AreaShadowTextureRW, m_AreaShadowTextureArray);
// Second (and final) denoising pass
cmd.SetComputeTextureParam(shadowFilter, secondDenoiseKernel, HDShaderIDs._DenoiseInputTexture, m_DenoiseBuffer0);
cmd.DispatchCompute(shadowFilter, secondDenoiseKernel, numTilesX, numTilesY, 1);
}
}
// If this is the right debug mode and we have at least one light, write the first shadow to the denoise texture
HDRenderPipeline hdrp = (RenderPipelineManager.currentPipeline as HDRenderPipeline);
if (FullScreenDebugMode.RaytracedAreaShadow == hdrp.m_CurrentDebugDisplaySettings.data.fullScreenDebugMode && numLights > 0)
{
int targetKernel = shadowFilter.FindKernel("WriteShadowTextureDebug");
cmd.SetComputeIntParam(shadowFilter, HDShaderIDs._RaytracingShadowSlot, 0);
cmd.SetComputeTextureParam(shadowFilter, targetKernel, HDShaderIDs._AreaShadowTextureRW, m_AreaShadowTextureArray);
cmd.SetComputeTextureParam(shadowFilter, targetKernel, HDShaderIDs._DenoiseOutputTextureRW, m_DenoiseBuffer0);
cmd.DispatchCompute(shadowFilter, targetKernel, numTilesX, numTilesY, 1);
hdrp.PushFullScreenDebugTexture(hdCamera, cmd, m_DenoiseBuffer0, FullScreenDebugMode.RaytracedAreaShadow);
}
return(true);
}
public void RebuildTextures(int resolution)
{
bool updateNeeded = m_SkyboxCubemapRT == null || (m_SkyboxCubemapRT.rt.width != resolution);
// Cleanup first if needed
if (updateNeeded)
{
RTHandles.Release(m_SkyboxCubemapRT);
m_SkyboxCubemapRT = null;
RTHandles.Release(m_SkyboxBSDFCubemapIntermediate);
m_SkyboxBSDFCubemapIntermediate = null;
CoreUtils.Destroy(m_SkyboxBSDFCubemapArray);
m_SkyboxBSDFCubemapArray = null;
}
// Reallocate everything
if (m_SkyboxCubemapRT == null)
{
m_SkyboxCubemapRT = RTHandles.Alloc(resolution, resolution, colorFormat: HDRenderPipeline.OverrideRTGraphicsFormat(GraphicsFormat.R16G16B16A16_SFloat), dimension: TextureDimension.Cube, useMipMap: true, autoGenerateMips: false, filterMode: FilterMode.Trilinear, name: "SkyboxCubemap");
if (m_SupportsConvolution)
{
m_SkyboxBSDFCubemapIntermediate = RTHandles.Alloc(resolution, resolution, colorFormat: UnityEngine.Experimental.Rendering.HDPipeline.HDRenderPipeline.OverrideRTGraphicsFormat(GraphicsFormat.R16G16B16A16_SFloat), dimension: TextureDimension.Cube, useMipMap: true, autoGenerateMips: false, filterMode: FilterMode.Trilinear, name: "SkyboxBSDFIntermediate");
m_SkyboxBSDFCubemapArray = new CubemapArray(resolution, m_IBLFilterArray.Length, TextureFormat.RGBAHalf, true)
{
hideFlags = HideFlags.HideAndDontSave,
wrapMode = TextureWrapMode.Repeat,
wrapModeV = TextureWrapMode.Clamp,
filterMode = FilterMode.Trilinear,
anisoLevel = 0,
name = "SkyboxCubemapConvolution"
};
}
}
m_CubemapScreenSize = new Vector4((float)resolution, (float)resolution, 1.0f / (float)resolution, 1.0f / (float)resolution);
if (updateNeeded)
{
m_NeedUpdate = true; // Special case. Even if update mode is set to OnDemand, we need to regenerate the environment after destroying the texture.
RebuildSkyMatrices(resolution);
}
}
public void Init(HDRenderPipelineAsset asset, HDRaytracingManager raytracingManager, SharedRTManager sharedRTManager, HDRenderPipeline renderPipeline, GBufferManager gbufferManager)
{
// Keep track of the pipeline asset
m_PipelineAsset = asset;
m_PipelineResources = asset.renderPipelineResources;
// keep track of the ray tracing manager
m_RaytracingManager = raytracingManager;
// Keep track of the shared rt manager
m_SharedRTManager = sharedRTManager;
// The render pipeline that holds all the lights of the scene
m_RenderPipeline = renderPipeline;
// GBuffer manager that holds all the data for shading the samples
m_GbufferManager = gbufferManager;
// Allocate the intermediate buffers
m_AnalyticProbBuffer = RTHandles.Alloc(Vector2.one, TextureXR.slices, colorFormat: GraphicsFormat.R16G16_SFloat, dimension: TextureXR.dimension, enableRandomWrite: true, useDynamicScale: true, useMipMap: false, name: "AnalyticProbBuffer");
m_DenoiseBuffer0 = RTHandles.Alloc(Vector2.one, TextureXR.slices, colorFormat: GraphicsFormat.R16G16B16A16_SFloat, dimension: TextureXR.dimension, enableRandomWrite: true, useDynamicScale: true, useMipMap: false, name: "DenoiseBuffer0");
m_DenoiseBuffer1 = RTHandles.Alloc(Vector2.one, TextureXR.slices, colorFormat: GraphicsFormat.R16G16B16A16_SFloat, dimension: TextureXR.dimension, enableRandomWrite: true, useDynamicScale: true, useMipMap: false, name: "DenoiseBuffer1");
m_RaytracingDirectionBuffer = RTHandles.Alloc(Vector2.one, TextureXR.slices, colorFormat: GraphicsFormat.R16G16B16A16_SFloat, dimension: TextureXR.dimension, enableRandomWrite: true, useDynamicScale: true, useMipMap: false, name: "RaytracingDirectionBuffer");
m_RaytracingDistanceBuffer = RTHandles.Alloc(Vector2.one, TextureXR.slices, colorFormat: GraphicsFormat.R32_SFloat, dimension: TextureXR.dimension, enableRandomWrite: true, useDynamicScale: true, useMipMap: false, name: "RaytracingDistanceBuffer");
// Allocate the final result texture
m_AreaShadowTextureArray = RTHandles.Alloc(Vector2.one, slices: 4 * TextureXR.slices, dimension: TextureDimension.Tex2DArray, filterMode: FilterMode.Point, colorFormat: GraphicsFormat.R16_SFloat, enableRandomWrite: true, useDynamicScale: true, useMipMap: false, name: "AreaShadowArrayBuffer");
}
public void RenderReflectionsT1(HDCamera hdCamera, CommandBuffer cmd, RTHandleSystem.RTHandle outputTexture, ScriptableRenderContext renderContext, int frameCount)
{
// First thing to check is: Do we have a valid ray-tracing environment?
HDRaytracingEnvironment rtEnvironment = m_RaytracingManager.CurrentEnvironment();
HDRenderPipeline renderPipeline = m_RaytracingManager.GetRenderPipeline();
BlueNoise blueNoise = m_RaytracingManager.GetBlueNoiseManager();
ComputeShader reflectionFilter = m_PipelineAsset.renderPipelineRayTracingResources.reflectionBilateralFilterCS;
RayTracingShader reflectionShader = m_PipelineAsset.renderPipelineRayTracingResources.reflectionRaytracing;
bool invalidState = rtEnvironment == null || blueNoise == null ||
reflectionFilter == null || reflectionShader == null ||
m_PipelineResources.textures.owenScrambledTex == null || m_PipelineResources.textures.scramblingTex == null;
// If no acceleration structure available, end it now
if (invalidState)
{
return;
}
var settings = VolumeManager.instance.stack.GetComponent <ScreenSpaceReflection>();
LightCluster lightClusterSettings = VolumeManager.instance.stack.GetComponent <LightCluster>();
// Grab the acceleration structures and the light cluster to use
RayTracingAccelerationStructure accelerationStructure = m_RaytracingManager.RequestAccelerationStructure(rtEnvironment.reflLayerMask);
HDRaytracingLightCluster lightCluster = m_RaytracingManager.RequestLightCluster(rtEnvironment.reflLayerMask);
// Compute the actual resolution that is needed base on the quality
string targetRayGen = m_RayGenHalfResName;
// Define the shader pass to use for the reflection pass
cmd.SetRayTracingShaderPass(reflectionShader, "IndirectDXR");
// Set the acceleration structure for the pass
cmd.SetRayTracingAccelerationStructure(reflectionShader, HDShaderIDs._RaytracingAccelerationStructureName, accelerationStructure);
// Inject the ray-tracing sampling data
cmd.SetRayTracingTextureParam(reflectionShader, HDShaderIDs._OwenScrambledTexture, m_PipelineResources.textures.owenScrambledTex);
cmd.SetRayTracingTextureParam(reflectionShader, HDShaderIDs._ScramblingTexture, m_PipelineResources.textures.scramblingTex);
// Global reflection parameters
cmd.SetRayTracingFloatParams(reflectionShader, HDShaderIDs._RaytracingIntensityClamp, settings.clampValue.value);
cmd.SetRayTracingFloatParams(reflectionShader, HDShaderIDs._RaytracingReflectionMinSmoothness, settings.minSmoothness.value);
cmd.SetRayTracingIntParams(reflectionShader, HDShaderIDs._RaytracingReflectSky, settings.reflectSky.value ? 1 : 0);
// Inject the ray generation data
cmd.SetGlobalFloat(HDShaderIDs._RaytracingRayBias, rtEnvironment.rayBias);
cmd.SetGlobalFloat(HDShaderIDs._RaytracingRayMaxLength, settings.rayLength.value);
cmd.SetRayTracingIntParams(reflectionShader, HDShaderIDs._RaytracingNumSamples, settings.numSamples.value);
int frameIndex = hdCamera.IsTAAEnabled() ? hdCamera.taaFrameIndex : (int)frameCount % 8;
cmd.SetGlobalInt(HDShaderIDs._RaytracingFrameIndex, frameIndex);
// Set the data for the ray generation
cmd.SetRayTracingTextureParam(reflectionShader, HDShaderIDs._SsrLightingTextureRW, m_LightingTexture);
cmd.SetRayTracingTextureParam(reflectionShader, HDShaderIDs._SsrHitPointTexture, m_HitPdfTexture);
cmd.SetRayTracingTextureParam(reflectionShader, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthStencilBuffer());
cmd.SetRayTracingTextureParam(reflectionShader, HDShaderIDs._NormalBufferTexture, m_SharedRTManager.GetNormalBuffer());
// Set ray count tex
cmd.SetRayTracingIntParam(reflectionShader, HDShaderIDs._RayCountEnabled, m_RaytracingManager.rayCountManager.RayCountIsEnabled());
cmd.SetRayTracingTextureParam(reflectionShader, HDShaderIDs._RayCountTexture, m_RaytracingManager.rayCountManager.rayCountTexture);
// Compute the pixel spread value
float pixelSpreadAngle = Mathf.Atan(2.0f * Mathf.Tan(hdCamera.camera.fieldOfView * Mathf.PI / 360.0f) / Mathf.Min(hdCamera.actualWidth, hdCamera.actualHeight));
cmd.SetRayTracingFloatParam(reflectionShader, HDShaderIDs._RaytracingPixelSpreadAngle, pixelSpreadAngle);
// LightLoop data
cmd.SetGlobalBuffer(HDShaderIDs._RaytracingLightCluster, lightCluster.GetCluster());
cmd.SetGlobalBuffer(HDShaderIDs._LightDatasRT, lightCluster.GetLightDatas());
cmd.SetGlobalVector(HDShaderIDs._MinClusterPos, lightCluster.GetMinClusterPos());
cmd.SetGlobalVector(HDShaderIDs._MaxClusterPos, lightCluster.GetMaxClusterPos());
cmd.SetGlobalInt(HDShaderIDs._LightPerCellCount, lightClusterSettings.maxNumLightsPercell.value);
cmd.SetGlobalInt(HDShaderIDs._PunctualLightCountRT, lightCluster.GetPunctualLightCount());
cmd.SetGlobalInt(HDShaderIDs._AreaLightCountRT, lightCluster.GetAreaLightCount());
// Note: Just in case, we rebind the directional light data (in case they were not)
cmd.SetGlobalBuffer(HDShaderIDs._DirectionalLightDatas, renderPipeline.m_LightLoopLightData.directionalLightData);
cmd.SetGlobalInt(HDShaderIDs._DirectionalLightCount, renderPipeline.m_lightList.directionalLights.Count);
// Evaluate the clear coat mask texture based on the lit shader mode
RenderTargetIdentifier clearCoatMaskTexture = hdCamera.frameSettings.litShaderMode == LitShaderMode.Deferred ? m_GbufferManager.GetBuffersRTI()[2] : TextureXR.GetBlackTexture();
cmd.SetRayTracingTextureParam(reflectionShader, HDShaderIDs._SsrClearCoatMaskTexture, clearCoatMaskTexture);
// Set the data for the ray miss
cmd.SetRayTracingTextureParam(reflectionShader, HDShaderIDs._SkyTexture, m_SkyManager.skyReflection);
// Compute the actual resolution that is needed base on the quality
uint widthResolution = (uint)hdCamera.actualWidth / 2;
uint heightResolution = (uint)hdCamera.actualHeight / 2;
// Force to disable specular lighting
cmd.SetGlobalInt(HDShaderIDs._EnableSpecularLighting, 0);
// Run the computation
cmd.DispatchRays(reflectionShader, targetRayGen, widthResolution, heightResolution, 1);
// Restore the previous state of specular lighting
cmd.SetGlobalInt(HDShaderIDs._EnableSpecularLighting, hdCamera.frameSettings.IsEnabled(FrameSettingsField.SpecularLighting) ? 1 : 0);
using (new ProfilingSample(cmd, "Filter Reflection", CustomSamplerId.RaytracingFilterReflection.GetSampler()))
{
// Fetch the right filter to use
int currentKernel = reflectionFilter.FindKernel("RaytracingReflectionFilter");
// Inject all the parameters for the compute
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._SsrLightingTextureRW, m_LightingTexture);
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._SsrHitPointTexture, m_HitPdfTexture);
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthStencilBuffer());
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._NormalBufferTexture, m_SharedRTManager.GetNormalBuffer());
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, "_NoiseTexture", blueNoise.textureArray16RGB);
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, "_VarianceTexture", m_VarianceBuffer);
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, "_MinColorRangeTexture", m_MinBoundBuffer);
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, "_MaxColorRangeTexture", m_MaxBoundBuffer);
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, "_RaytracingReflectionTexture", outputTexture);
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._ScramblingTexture, m_PipelineResources.textures.scramblingTex);
cmd.SetComputeIntParam(reflectionFilter, HDShaderIDs._SpatialFilterRadius, settings.spatialFilterRadius.value);
cmd.SetComputeFloatParam(reflectionFilter, HDShaderIDs._RaytracingReflectionMinSmoothness, settings.minSmoothness.value);
// Texture dimensions
int texWidth = outputTexture.rt.width;
int texHeight = outputTexture.rt.height;
// Evaluate the dispatch parameters
int areaTileSize = 8;
int numTilesXHR = (texWidth + (areaTileSize - 1)) / areaTileSize;
int numTilesYHR = (texHeight + (areaTileSize - 1)) / areaTileSize;
// Bind the right texture for clear coat support
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._SsrClearCoatMaskTexture, clearCoatMaskTexture);
// Compute the texture
cmd.DispatchCompute(reflectionFilter, currentKernel, numTilesXHR, numTilesYHR, 1);
int numTilesXFR = (texWidth + (areaTileSize - 1)) / areaTileSize;
int numTilesYFR = (texHeight + (areaTileSize - 1)) / areaTileSize;
RTHandleSystem.RTHandle history = hdCamera.GetCurrentFrameRT((int)HDCameraFrameHistoryType.RaytracedReflection)
?? hdCamera.AllocHistoryFrameRT((int)HDCameraFrameHistoryType.RaytracedReflection, ReflectionHistoryBufferAllocatorFunction, 1);
// Fetch the right filter to use
currentKernel = reflectionFilter.FindKernel("TemporalAccumulationFilter");
cmd.SetComputeFloatParam(reflectionFilter, HDShaderIDs._TemporalAccumuationWeight, settings.temporalAccumulationWeight.value);
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._AccumulatedFrameTexture, history);
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, HDShaderIDs._CurrentFrameTexture, outputTexture);
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, "_MinColorRangeTexture", m_MinBoundBuffer);
cmd.SetComputeTextureParam(reflectionFilter, currentKernel, "_MaxColorRangeTexture", m_MaxBoundBuffer);
cmd.DispatchCompute(reflectionFilter, currentKernel, numTilesXFR, numTilesYFR, 1);
}
}
public void Initialize(RenderPipelineResources rpResources, HDRenderPipelineRayTracingResources rpRTResources, HDRaytracingManager raytracingManager, SharedRTManager sharedRTManager, HDRenderPipeline renderPipeline)
{
// Keep track of the external buffers
m_RenderPipelineResources = rpResources;
m_RenderPipelineRayTracingResources = rpRTResources;
m_RaytracingManager = raytracingManager;
// Keep track of the render pipeline
m_RenderPipeline = renderPipeline;
// Keep track of the shader rt manager
m_SharedRTManager = sharedRTManager;
// Texture used to output debug information
m_DebugLightClusterTexture = RTHandles.Alloc(Vector2.one, filterMode: FilterMode.Point, colorFormat: GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite: true, useDynamicScale: true, useMipMap: false, name: "DebugLightClusterTexture");
// Pre allocate the cluster with a dummy size
m_LightCluster = new ComputeBuffer(1, sizeof(uint));
}
// BufferedRTHandleSystem API expects an allocator function. We define it here.
static RTHandleSystem.RTHandle HistoryBufferAllocatorFunction(string viewName, int frameIndex, RTHandleSystem rtHandleSystem)
{
frameIndex &= 1;
var hdPipeline = (HDRenderPipeline)RenderPipelineManager.currentPipeline;
return(rtHandleSystem.Alloc(Vector2.one, filterMode: FilterMode.Point, colorFormat: HDRenderPipeline.OverrideRTGraphicsFormat((GraphicsFormat)hdPipeline.currentPlatformRenderPipelineSettings.colorBufferFormat),
enableRandomWrite: true, useMipMap: true, autoGenerateMips: false, xrInstancing: true,
name: string.Format("CameraColorBufferMipChain{0}", frameIndex)));
}
private void SssSettingsUI(HDRenderPipeline pipe)
{
EditorGUILayout.Space();
EditorGUILayout.LabelField(styles.sssSettings);
EditorGUI.BeginChangeCheck();
EditorGUI.indentLevel++;
EditorGUI.BeginChangeCheck();
EditorGUILayout.PropertyField(m_NumProfiles, styles.sssNumProfiles);
m_TexturingMode.intValue = EditorGUILayout.Popup(styles.sssTexturingMode, m_TexturingMode.intValue, styles.sssTexturingModeOptions, (GUILayoutOption[])null);
for (int i = 0, n = Math.Min(m_Profiles.arraySize, SubsurfaceScatteringSettings.maxNumProfiles); i < n; i++)
{
SerializedProperty profile = m_Profiles.GetArrayElementAtIndex(i);
EditorGUILayout.PropertyField(profile, styles.sssProfiles[i]);
if (profile.isExpanded)
{
EditorGUI.indentLevel++;
SerializedProperty profileStdDev1 = profile.FindPropertyRelative("stdDev1");
SerializedProperty profileStdDev2 = profile.FindPropertyRelative("stdDev2");
SerializedProperty profileLerpWeight = profile.FindPropertyRelative("lerpWeight");
SerializedProperty profileTransmission = profile.FindPropertyRelative("enableTransmission");
SerializedProperty profileThicknessRemap = profile.FindPropertyRelative("thicknessRemap");
EditorGUILayout.PropertyField(profileStdDev1, styles.sssProfileStdDev1);
EditorGUILayout.PropertyField(profileStdDev2, styles.sssProfileStdDev2);
EditorGUILayout.PropertyField(profileLerpWeight, styles.sssProfileLerpWeight);
EditorGUILayout.PropertyField(profileTransmission, styles.sssProfileTransmission);
Vector2 thicknessRemap = profileThicknessRemap.vector2Value;
EditorGUILayout.LabelField("Min thickness: ", thicknessRemap.x.ToString());
EditorGUILayout.LabelField("Max thickness: ", thicknessRemap.y.ToString());
EditorGUILayout.MinMaxSlider(styles.sssProfileThicknessRemap, ref thicknessRemap.x, ref thicknessRemap.y, 0, 10);
profileThicknessRemap.vector2Value = thicknessRemap;
EditorGUILayout.Space();
EditorGUILayout.LabelField(styles.sssProfilePreview0, styles.centeredMiniBoldLabel);
EditorGUILayout.LabelField(styles.sssProfilePreview1, EditorStyles.centeredGreyMiniLabel);
EditorGUILayout.LabelField(styles.sssProfilePreview2, EditorStyles.centeredGreyMiniLabel);
EditorGUILayout.Space();
// Draw the profile.
m_ProfileMaterial.SetColor("_StdDev1", profileStdDev1.colorValue);
m_ProfileMaterial.SetColor("_StdDev2", profileStdDev2.colorValue);
m_ProfileMaterial.SetFloat("_LerpWeight", profileLerpWeight.floatValue);
EditorGUI.DrawPreviewTexture(GUILayoutUtility.GetRect(256, 256), m_ProfileImages[i], m_ProfileMaterial, ScaleMode.ScaleToFit, 1.0f);
EditorGUILayout.Space();
EditorGUILayout.LabelField(styles.sssTransmittancePreview0, styles.centeredMiniBoldLabel);
EditorGUILayout.LabelField(styles.sssTransmittancePreview1, EditorStyles.centeredGreyMiniLabel);
EditorGUILayout.Space();
// Draw the transmittance graph.
m_TransmittanceMaterial.SetColor("_StdDev1", profileStdDev1.colorValue);
m_TransmittanceMaterial.SetColor("_StdDev2", profileStdDev2.colorValue);
m_TransmittanceMaterial.SetFloat("_LerpWeight", profileLerpWeight.floatValue);
m_TransmittanceMaterial.SetVector("_ThicknessRemap", profileThicknessRemap.vector2Value);
EditorGUI.DrawPreviewTexture(GUILayoutUtility.GetRect(16, 16), m_TransmittanceImages[i], m_TransmittanceMaterial, ScaleMode.ScaleToFit, 16.0f);
EditorGUILayout.Space();
EditorGUI.indentLevel--;
}
}
EditorGUI.indentLevel--;
}
Texture[] ConvolveProbeTexture(CommandBuffer cmd, Texture texture)
{
// Probes can be either Cubemaps (for baked probes) or RenderTextures (for realtime probes)
Cubemap cubeTexture = texture as Cubemap;
RenderTexture renderTexture = texture as RenderTexture;
RenderTexture convolutionSourceTexture = null;
if (cubeTexture != null)
{
// if the size if different from the cache probe size or if the input texture format is compressed, we need to convert it
// 1) to a format for which we can generate mip maps
// 2) to the proper reflection probe cache size
bool sizeMismatch = cubeTexture.width != m_ProbeSize || cubeTexture.height != m_ProbeSize;
bool formatMismatch = cubeTexture.format != TextureFormat.RGBAHalf; // Temporary RT for convolution is always FP16
if (formatMismatch || sizeMismatch)
{
// We comment the following warning as they have no impact on the result but spam the console, it is just that we waste offline time and a bit of quality for nothing.
if (sizeMismatch)
{
// Debug.LogWarningFormat("Baked Reflection Probe {0} does not match HDRP Reflection Probe Cache size of {1}. Consider baking it at the same size for better loading performance.", texture.name, m_ProbeSize);
}
else if (cubeTexture.format == TextureFormat.BC6H)
{
// Debug.LogWarningFormat("Baked Reflection Probe {0} is compressed but the HDRP Reflection Probe Cache is not. Consider removing compression from the input texture for better quality.", texture.name);
}
ConvertTexture(cmd, cubeTexture, m_TempRenderTexture);
}
else
{
for (int f = 0; f < 6; f++)
{
cmd.CopyTexture(cubeTexture, f, 0, m_TempRenderTexture, f, 0);
}
}
// Ideally if input is not compressed and has mipmaps, don't do anything here. Problem is, we can't know if mips have been already convolved offline...
//cmd.GenerateMips(m_TempRenderTexture);
HDRenderPipeline.RT_GenerateMips(cmd, m_TempRenderTexture);
convolutionSourceTexture = m_TempRenderTexture;
}
else
{
Debug.Assert(renderTexture != null);
if (renderTexture.dimension != TextureDimension.Cube)
{
Debug.LogError("Realtime reflection probe should always be a Cube RenderTexture.");
return(null);
}
// TODO: Do a different case for downsizing, in this case, instead of doing ConvertTexture just use the relevant mipmaps.
bool sizeMismatch = renderTexture.width != m_ProbeSize || renderTexture.height != m_ProbeSize;
if (sizeMismatch)
{
ConvertTexture(cmd, renderTexture, m_TempRenderTexture);
convolutionSourceTexture = m_TempRenderTexture;
}
else
{
convolutionSourceTexture = renderTexture;
}
// Generate unfiltered mipmaps as a base for convolution
// TODO: Make sure that we don't first convolve everything on the GPU with the legacy code path executed after rendering the probe.
HDRenderPipeline.RT_GenerateMips(cmd, convolutionSourceTexture);
//cmd.GenerateMips(convolutionSourceTexture);
}
for (int bsdfIdx = 0; bsdfIdx < m_IBLFilterBSDF.Length; ++bsdfIdx)
{
m_IBLFilterBSDF[bsdfIdx].FilterCubemap(cmd, convolutionSourceTexture, m_ConvolutionTargetTextureArray[bsdfIdx]);
}
return(m_ConvolutionTargetTextureArray);
}
private void DebugParametersUI(HDRenderPipeline renderContext)
{
m_ShowDebug.boolValue = EditorGUILayout.Foldout(m_ShowDebug.boolValue, styles.debugParameters);
if (!m_ShowDebug.boolValue)
{
return;
}
var debugParameters = renderContext.debugParameters;
EditorGUI.indentLevel++;
EditorGUI.BeginChangeCheck();
if (!styles.isDebugViewMaterialInit)
{
var varyingNames = Enum.GetNames(typeof(Attributes.DebugViewVarying));
var gbufferNames = Enum.GetNames(typeof(Attributes.DebugViewGbuffer));
// +1 for the zero case
var num = 1 + varyingNames.Length
+ gbufferNames.Length
+ typeof(Builtin.BuiltinData).GetFields().Length * 2 // BuildtinData are duplicated for each material
+ typeof(Lit.SurfaceData).GetFields().Length
+ typeof(Lit.BSDFData).GetFields().Length
+ typeof(Unlit.SurfaceData).GetFields().Length
+ typeof(Unlit.BSDFData).GetFields().Length;
styles.debugViewMaterialStrings = new GUIContent[num];
styles.debugViewMaterialValues = new int[num];
var index = 0;
// 0 is a reserved number
styles.debugViewMaterialStrings[0] = new GUIContent("None");
styles.debugViewMaterialValues[0] = 0;
index++;
FillWithPropertiesEnum(typeof(Attributes.DebugViewVarying), styles.debugViewMaterialStrings, styles.debugViewMaterialValues, GetSubNameSpaceName(typeof(Attributes.DebugViewVarying)), false, ref index);
FillWithProperties(typeof(Builtin.BuiltinData), styles.debugViewMaterialStrings, styles.debugViewMaterialValues, false, GetSubNameSpaceName(typeof(Lit.SurfaceData)), ref index);
FillWithProperties(typeof(Lit.SurfaceData), styles.debugViewMaterialStrings, styles.debugViewMaterialValues, false, GetSubNameSpaceName(typeof(Lit.SurfaceData)), ref index);
FillWithProperties(typeof(Builtin.BuiltinData), styles.debugViewMaterialStrings, styles.debugViewMaterialValues, false, GetSubNameSpaceName(typeof(Unlit.SurfaceData)), ref index);
FillWithProperties(typeof(Unlit.SurfaceData), styles.debugViewMaterialStrings, styles.debugViewMaterialValues, false, GetSubNameSpaceName(typeof(Unlit.SurfaceData)), ref index);
// Engine
FillWithPropertiesEnum(typeof(Attributes.DebugViewGbuffer), styles.debugViewMaterialStrings, styles.debugViewMaterialValues, "", true, ref index);
FillWithProperties(typeof(Lit.BSDFData), styles.debugViewMaterialStrings, styles.debugViewMaterialValues, true, "", ref index);
FillWithProperties(typeof(Unlit.BSDFData), styles.debugViewMaterialStrings, styles.debugViewMaterialValues, true, "", ref index);
styles.isDebugViewMaterialInit = true;
}
debugParameters.debugViewMaterial = EditorGUILayout.IntPopup(styles.debugViewMaterial, (int)debugParameters.debugViewMaterial, styles.debugViewMaterialStrings, styles.debugViewMaterialValues);
EditorGUILayout.Space();
debugParameters.displayOpaqueObjects = EditorGUILayout.Toggle(styles.displayOpaqueObjects, debugParameters.displayOpaqueObjects);
debugParameters.displayTransparentObjects = EditorGUILayout.Toggle(styles.displayTransparentObjects, debugParameters.displayTransparentObjects);
debugParameters.useForwardRenderingOnly = EditorGUILayout.Toggle(styles.useForwardRenderingOnly, debugParameters.useForwardRenderingOnly);
debugParameters.useDepthPrepass = EditorGUILayout.Toggle(styles.useDepthPrepass, debugParameters.useDepthPrepass);
debugParameters.useDistortion = EditorGUILayout.Toggle(styles.useDistortion, debugParameters.useDistortion);
if (EditorGUI.EndChangeCheck())
{
HackSetDirty(renderContext); // Repaint
}
EditorGUI.indentLevel--;
}
private void LightingDebugSettingsUI(HDRenderPipeline renderContext, HDRenderPipelineInstance renderpipelineInstance)
{
m_ShowLightingDebug.boolValue = EditorGUILayout.Foldout(m_ShowLightingDebug.boolValue, styles.lightingDebugSettings);
if (!m_ShowLightingDebug.boolValue)
{
return;
}
HDRenderPipeline hdPipe = target as HDRenderPipeline;
bool dirty = false;
EditorGUI.BeginChangeCheck();
EditorGUI.indentLevel++;
EditorGUILayout.PropertyField(m_DebugShadowEnabled, styles.shadowDebugEnable);
EditorGUILayout.PropertyField(m_ShadowDebugMode, styles.shadowDebugVisualizationMode);
if (!m_ShadowDebugMode.hasMultipleDifferentValues)
{
if ((ShadowMapDebugMode)m_ShadowDebugMode.intValue == ShadowMapDebugMode.VisualizeShadowMap)
{
EditorGUILayout.IntSlider(m_ShadowDebugShadowMapIndex, 0, renderpipelineInstance.GetCurrentShadowCount() - 1, styles.shadowDebugVisualizeShadowIndex);
}
}
if (EditorGUI.EndChangeCheck())
{
dirty = true;
}
EditorGUI.BeginChangeCheck();
int value = EditorGUILayout.IntPopup(styles.lightingVisualizationMode, (int)hdPipe.debugDisplaySettings.lightingDebugSettings.debugLightingMode, styles.debugViewLightingStrings, styles.debugViewLightingValues);
if (EditorGUI.EndChangeCheck())
{
hdPipe.debugDisplaySettings.SetDebugLightingMode((DebugLightingMode)value);
dirty = true;
}
EditorGUI.BeginChangeCheck();
if (hdPipe.debugDisplaySettings.GetDebugLightingMode() == DebugLightingMode.DiffuseLighting)
{
EditorGUI.indentLevel++;
EditorGUILayout.PropertyField(m_LightingDebugAlbedo, styles.lightingDebugAlbedo);
EditorGUI.indentLevel--;
}
if (hdPipe.debugDisplaySettings.GetDebugLightingMode() == DebugLightingMode.SpecularLighting)
{
EditorGUI.indentLevel++;
EditorGUILayout.PropertyField(m_LightingDebugOverrideSmoothness, styles.lightingDebugOverrideSmoothness);
if (!m_LightingDebugOverrideSmoothness.hasMultipleDifferentValues && m_LightingDebugOverrideSmoothness.boolValue == true)
{
EditorGUI.indentLevel++;
EditorGUILayout.PropertyField(m_LightingDebugOverrideSmoothnessValue, styles.lightingDebugOverrideSmoothnessValue);
EditorGUI.indentLevel--;
}
EditorGUI.indentLevel--;
}
EditorGUILayout.PropertyField(m_LightingDebugDisplaySkyReflection, styles.lightingDisplaySkyReflection);
if (!m_LightingDebugDisplaySkyReflection.hasMultipleDifferentValues && m_LightingDebugDisplaySkyReflection.boolValue == true)
{
EditorGUI.indentLevel++;
EditorGUILayout.PropertyField(m_LightingDebugDisplaySkyReflectionMipmap, styles.lightingDisplaySkyReflectionMipmap);
EditorGUI.indentLevel--;
}
EditorGUI.indentLevel--;
if (EditorGUI.EndChangeCheck())
{
dirty = true;
}
if (dirty)
{
HackSetDirty(renderContext);
}
}
public void Render(HDCamera hdCamera, CommandBuffer cmd, RTHandleSystem.RTHandle outputTexture, ScriptableRenderContext renderContext, CullingResults cull)
{
// First thing to check is: Do we have a valid ray-tracing environment?
HDRaytracingEnvironment rtEnvironement = m_RaytracingManager.CurrentEnvironment();
LightLoop lightLoop = m_RaytracingManager.GetLightLoop();
RaytracingShader forwardShader = m_PipelineAsset.renderPipelineResources.shaders.forwardRaytracing;
Shader raytracingMask = m_PipelineAsset.renderPipelineResources.shaders.raytracingFlagMask;
// Check the validity of the state before computing the effect
bool invalidState = rtEnvironement == null || !rtEnvironement.raytracedObjects ||
forwardShader == null || raytracingMask == null ||
m_PipelineResources.textures.owenScrambledTex == null || m_PipelineResources.textures.scramblingTex == null;
// If any resource or game-object is missing We stop right away
if (invalidState)
{
return;
}
// Grab the acceleration structure and the list of HD lights for the target camera
RaytracingAccelerationStructure accelerationStructure = m_RaytracingManager.RequestAccelerationStructure(rtEnvironement.raytracedLayerMask);
HDRaytracingLightCluster lightCluster = m_RaytracingManager.RequestLightCluster(rtEnvironement.raytracedLayerMask);
if (m_RaytracingFlagMaterial == null)
{
m_RaytracingFlagMaterial = CoreUtils.CreateEngineMaterial(raytracingMask);
}
// Before going into raytracing, we need to flag which pixels needs to be raytracing
EvaluateRaytracingMask(cull, hdCamera, cmd, renderContext);
// Define the shader pass to use for the reflection pass
cmd.SetRaytracingShaderPass(forwardShader, "ForwardDXR");
// Set the acceleration structure for the pass
cmd.SetRaytracingAccelerationStructure(forwardShader, HDShaderIDs._RaytracingAccelerationStructureName, accelerationStructure);
// Inject the ray-tracing sampling data
cmd.SetRaytracingTextureParam(forwardShader, m_RayGenShaderName, HDShaderIDs._OwenScrambledTexture, m_PipelineResources.textures.owenScrambledTex);
cmd.SetRaytracingTextureParam(forwardShader, m_RayGenShaderName, HDShaderIDs._ScramblingTexture, m_PipelineResources.textures.scramblingTex);
// Inject the ray generation data
cmd.SetGlobalFloat(HDShaderIDs._RaytracingRayBias, rtEnvironement.rayBias);
cmd.SetGlobalFloat(HDShaderIDs._RaytracingRayMaxLength, rtEnvironement.raytracingRayLength);
cmd.SetGlobalFloat(HDShaderIDs._RaytracingMaxRecursion, rtEnvironement.rayMaxDepth);
cmd.SetGlobalFloat(HDShaderIDs._RaytracingCameraNearPlane, hdCamera.camera.nearClipPlane);
// Set the data for the ray generation
cmd.SetRaytracingTextureParam(forwardShader, m_RayGenShaderName, HDShaderIDs._RaytracingFlagMask, m_RaytracingFlagTarget);
cmd.SetRaytracingTextureParam(forwardShader, m_RayGenShaderName, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthStencilBuffer());
cmd.SetRaytracingTextureParam(forwardShader, m_RayGenShaderName, HDShaderIDs._CameraColorTextureRW, outputTexture);
// Compute an approximate pixel spread angle value (in radians)
float pixelSpreadAngle = hdCamera.camera.fieldOfView * (Mathf.PI / 180.0f) / Mathf.Min(hdCamera.actualWidth, hdCamera.actualHeight);
cmd.SetGlobalFloat(HDShaderIDs._RaytracingPixelSpreadAngle, pixelSpreadAngle);
// LightLoop data
cmd.SetGlobalBuffer(HDShaderIDs._RaytracingLightCluster, lightCluster.GetCluster());
cmd.SetGlobalBuffer(HDShaderIDs._LightDatasRT, lightCluster.GetLightDatas());
cmd.SetGlobalVector(HDShaderIDs._MinClusterPos, lightCluster.GetMinClusterPos());
cmd.SetGlobalVector(HDShaderIDs._MaxClusterPos, lightCluster.GetMaxClusterPos());
cmd.SetGlobalInt(HDShaderIDs._LightPerCellCount, rtEnvironement.maxNumLightsPercell);
cmd.SetGlobalInt(HDShaderIDs._PunctualLightCountRT, lightCluster.GetPunctualLightCount());
cmd.SetGlobalInt(HDShaderIDs._AreaLightCountRT, lightCluster.GetAreaLightCount());
// Note: Just in case, we rebind the directional light data (in case they were not)
cmd.SetGlobalBuffer(HDShaderIDs._DirectionalLightDatas, lightLoop.directionalLightDatas);
cmd.SetGlobalInt(HDShaderIDs._DirectionalLightCount, lightLoop.m_lightList.directionalLights.Count);
// Set the data for the ray miss
cmd.SetRaytracingTextureParam(forwardShader, m_MissShaderName, HDShaderIDs._SkyTexture, m_SkyManager.skyReflection);
// If this is the right debug mode and we have at least one light, write the first shadow to the denoise texture
HDRenderPipeline hdrp = (RenderPipelineManager.currentPipeline as HDRenderPipeline);
cmd.SetRaytracingTextureParam(forwardShader, m_RayGenShaderName, HDShaderIDs._RaytracingPrimaryDebug, m_DebugRaytracingTexture);
hdrp.PushFullScreenDebugTexture(hdCamera, cmd, m_DebugRaytracingTexture, FullScreenDebugMode.PrimaryVisibility);
// Run the calculus
cmd.DispatchRays(forwardShader, m_RayGenShaderName, (uint)hdCamera.actualWidth, (uint)hdCamera.actualHeight, 1);
}
public override void OnInspectorGUI()
{
serializedObject.Update();
// Old SSS Model >>>
bool useDisneySSS;
{
HDRenderPipeline hdPipeline = RenderPipelineManager.currentPipeline as HDRenderPipeline;
useDisneySSS = hdPipeline.sssSettings.useDisneySSS;
}
// <<< Old SSS Model
EditorGUI.BeginChangeCheck();
{
if (useDisneySSS)
{
EditorGUILayout.PropertyField(m_ScatteringDistance, styles.sssProfileScatteringDistance);
GUI.enabled = false;
EditorGUILayout.PropertyField(m_MaxRadius, styles.sssProfileMaxRadius);
GUI.enabled = true;
}
else
{
EditorGUILayout.PropertyField(m_ScatterDistance1, styles.sssProfileScatterDistance1);
EditorGUILayout.PropertyField(m_ScatterDistance2, styles.sssProfileScatterDistance2);
EditorGUILayout.PropertyField(m_LerpWeight, styles.sssProfileLerpWeight);
}
m_TexturingMode.intValue = EditorGUILayout.Popup(styles.sssTexturingMode, m_TexturingMode.intValue, styles.sssTexturingModeOptions);
m_TransmissionMode.intValue = EditorGUILayout.Popup(styles.sssProfileTransmissionMode, m_TransmissionMode.intValue, styles.sssTransmissionModeOptions);
EditorGUILayout.PropertyField(m_TransmissionTint, styles.sssProfileTransmissionTint);
EditorGUILayout.PropertyField(m_ThicknessRemap, styles.sssProfileMinMaxThickness);
Vector2 thicknessRemap = m_ThicknessRemap.vector2Value;
EditorGUILayout.MinMaxSlider(styles.sssProfileThicknessRemap, ref thicknessRemap.x, ref thicknessRemap.y, 0.0f, 50.0f);
m_ThicknessRemap.vector2Value = thicknessRemap;
EditorGUILayout.PropertyField(m_WorldScale, styles.sssProfileWorldScale);
EditorGUILayout.Space();
EditorGUILayout.LabelField(styles.sssProfilePreview0, styles.centeredMiniBoldLabel);
EditorGUILayout.LabelField(styles.sssProfilePreview1, EditorStyles.centeredGreyMiniLabel);
EditorGUILayout.LabelField(styles.sssProfilePreview2, EditorStyles.centeredGreyMiniLabel);
EditorGUILayout.LabelField(styles.sssProfilePreview3, EditorStyles.centeredGreyMiniLabel);
EditorGUILayout.Space();
}
float r = m_MaxRadius.floatValue;
Vector3 S = m_ShapeParam.vector3Value;
Vector4 T = m_TransmissionTint.colorValue;
Vector2 R = m_ThicknessRemap.vector2Value;
bool transmissionEnabled = m_TransmissionMode.intValue != (int)SubsurfaceScatteringProfile.TransmissionMode.None;
// Draw the profile.
m_ProfileMaterial.SetFloat("_MaxRadius", r);
m_ProfileMaterial.SetVector("_ShapeParam", S);
// Old SSS Model >>>
Utilities.SelectKeyword(m_ProfileMaterial, "SSS_MODEL_DISNEY", "SSS_MODEL_BASIC", useDisneySSS);
// Apply the three-sigma rule, and rescale.
float s = (1.0f / 3.0f) * SssConstants.SSS_BASIC_DISTANCE_SCALE;
float rMax = Mathf.Max(m_ScatterDistance1.colorValue.r, m_ScatterDistance1.colorValue.g, m_ScatterDistance1.colorValue.b,
m_ScatterDistance2.colorValue.r, m_ScatterDistance2.colorValue.g, m_ScatterDistance2.colorValue.b);
Vector4 stdDev1 = new Vector4(s * m_ScatterDistance1.colorValue.r, s * m_ScatterDistance1.colorValue.g, s * m_ScatterDistance1.colorValue.b);
Vector4 stdDev2 = new Vector4(s * m_ScatterDistance2.colorValue.r, s * m_ScatterDistance2.colorValue.g, s * m_ScatterDistance2.colorValue.b);
m_ProfileMaterial.SetVector("_StdDev1", stdDev1);
m_ProfileMaterial.SetVector("_StdDev2", stdDev2);
m_ProfileMaterial.SetFloat("_LerpWeight", m_LerpWeight.floatValue);
m_ProfileMaterial.SetFloat("_MaxRadius", rMax);
// <<< Old SSS Model
EditorGUI.DrawPreviewTexture(GUILayoutUtility.GetRect(256, 256), m_ProfileImage, m_ProfileMaterial, ScaleMode.ScaleToFit, 1.0f);
EditorGUILayout.Space();
EditorGUILayout.LabelField(styles.sssTransmittancePreview0, styles.centeredMiniBoldLabel);
EditorGUILayout.LabelField(styles.sssTransmittancePreview1, EditorStyles.centeredGreyMiniLabel);
EditorGUILayout.LabelField(styles.sssTransmittancePreview2, EditorStyles.centeredGreyMiniLabel);
EditorGUILayout.Space();
// Draw the transmittance graph.
m_TransmittanceMaterial.SetVector("_ShapeParam", S);
m_TransmittanceMaterial.SetVector("_TransmissionTint", transmissionEnabled ? T : Vector4.zero);
m_TransmittanceMaterial.SetVector("_ThicknessRemap", R);
EditorGUI.DrawPreviewTexture(GUILayoutUtility.GetRect(16, 16), m_TransmittanceImage, m_TransmittanceMaterial, ScaleMode.ScaleToFit, 16.0f);
serializedObject.ApplyModifiedProperties();
if (EditorGUI.EndChangeCheck())
{
HDRenderPipeline hdPipeline = RenderPipelineManager.currentPipeline as HDRenderPipeline;
// Validate each individual asset and update caches.
hdPipeline.sssSettings.OnValidate();
}
}
Texture ConvolveProbeTexture(CommandBuffer cmd, Texture texture)
{
// Probes can be either Cubemaps (for baked probes) or RenderTextures (for realtime probes)
Texture2D texture2D = texture as Texture2D;
RenderTexture renderTexture = texture as RenderTexture;
RenderTexture convolutionSourceTexture = null;
if (texture2D != null)
{
// if the size if different from the cache probe size or if the input texture format is compressed, we need to convert it
// 1) to a format for which we can generate mip maps
// 2) to the proper reflection probe cache size
var sizeMismatch = texture2D.width != m_ProbeSize || texture2D.height != m_ProbeSize;
var formatMismatch = texture2D.format != TextureFormat.RGBAHalf; // Temporary RT for convolution is always FP16
if (formatMismatch || sizeMismatch)
{
if (sizeMismatch)
{
Debug.LogWarningFormat("Baked Planar Reflection Probe {0} does not match HDRP Planar Reflection Probe Cache size of {1}. Consider baking it at the same size for better loading performance.", texture.name, m_ProbeSize);
}
else if (texture2D.format == TextureFormat.BC6H)
{
Debug.LogWarningFormat("Baked Planar Reflection Probe {0} is compressed but the HDRP Planar Reflection Probe Cache is not. Consider removing compression from the input texture for better quality.", texture.name);
}
ConvertTexture(cmd, texture2D, m_TempRenderTexture);
}
else
{
cmd.CopyTexture(texture2D, 0, 0, m_TempRenderTexture, 0, 0);
}
// Ideally if input is not compressed and has mipmaps, don't do anything here. Problem is, we can't know if mips have been already convolved offline...
//cmd.GenerateMips(m_TempRenderTexture);
HDRenderPipeline.RT_GenerateMips(cmd, m_TempRenderTexture);
convolutionSourceTexture = m_TempRenderTexture;
}
else
{
Debug.Assert(renderTexture != null);
if (renderTexture.dimension != TextureDimension.Tex2D)
{
Debug.LogError("Planar Realtime reflection probe should always be a 2D RenderTexture.");
return(null);
}
// TODO: Do a different case for downsizing, in this case, instead of doing ConvertTexture just use the relevant mipmaps.
var sizeMismatch = renderTexture.width != m_ProbeSize || renderTexture.height != m_ProbeSize;
if (sizeMismatch)
{
ConvertTexture(cmd, renderTexture, m_TempRenderTexture);
convolutionSourceTexture = m_TempRenderTexture;
}
else
{
convolutionSourceTexture = renderTexture;
}
// Generate unfiltered mipmaps as a base for convolution
// TODO: Make sure that we don't first convolve everything on the GPU with the legacy code path executed after rendering the probe.
//cmd.GenerateMips(convolutionSourceTexture);
HDRenderPipeline.RT_GenerateMips(cmd, convolutionSourceTexture);
}
m_IBLFilterGGX.FilterPlanarTexture(cmd, convolutionSourceTexture, m_ConvolutionTargetTexture);
return(m_ConvolutionTargetTexture);
}
