#include "LumenRadiosity.h"
#include "RendererPrivate.h"
#include "ScenePrivate.h"
#include "SceneUtils.h"
#include "PipelineStateCache.h"
#include "ShaderParameterStruct.h"
#include "PixelShaderUtils.h"
#include "ReflectionEnvironment.h"
#include "DistanceFieldAmbientOcclusion.h"
#include "LumenRadianceCache.h"
#include "LumenSceneLighting.h"
#include "LumenTracingUtils.h"
#include "LumenHardwareRayTracingCommon.h"
#include "BlueNoise.h"
#include "ShaderPrintParameters.h"

Classes
class	FBuildRadiosityTilesCS

class	FLumenRadiosityIndirectArgsCS

class	FLumenRadiosityDistanceFieldTracingCS

class	FLumenRadiositySpatialFilterProbeRadiance

class	FLumenRadiosityConvertToSH

class	FLumenRadiosityIntegrateCS

class	FBuildVisualizeProbesCS

class	FVisualizeRadiosityProbesVS

class	FVisualizeRadiosityProbesPS

Namespaces
namespace	LumenRadiosity

Enumerations
enum class	ERadiosityIndirectArgs { NumTracesDiv64 = 0 * sizeof(FRHIDispatchIndirectParameters) , NumTracesDiv32 = 1 * sizeof(FRHIDispatchIndirectParameters) , ThreadPerProbe = 2 * sizeof(FRHIDispatchIndirectParameters) , HardwareRayTracingThreadPerTrace = 3 * sizeof(FRHIDispatchIndirectParameters) , MAX = 4 }

Functions
FAutoConsoleVariableRef	CVarLumenRadiosity (TEXT("r.LumenScene.Radiosity"), GLumenRadiosity, TEXT("Whether to enable the Radiosity, which is an indirect lighting gather from the Surface Cache that provides multibounce diffuse."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarLumenRadiosityProbeSpacing (TEXT("r.LumenScene.Radiosity.ProbeSpacing"), GLumenRadiosityProbeSpacing, TEXT("Distance between probes, in Surface Cache texels"), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarLumenRadiosityHemisphereProbeResolution (TEXT("r.LumenScene.Radiosity.HemisphereProbeResolution"), GLumenRadiosityHemisphereProbeResolution, TEXT("Number of traces along one dimension of the hemisphere probe layout."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarLumenRadiositySpatialFilterProbes (TEXT("r.LumenScene.Radiosity.SpatialFilterProbes"), GLumenRadiositySpatialFilterProbes, TEXT("Whether to spatially filter Radiosity probes. Filtering reduces noise but increases leaking."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarLumenRadiositySpatialFilterProbesKernelSize (TEXT("r.LumenScene.Radiosity.SpatialFilterProbes.KernelSize"), GLumenRadiositySpatialFilterProbesKernelSize, TEXT("Larger kernels reduce noise but increase leaking."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarRadiosityFilteringProbePlaneWeighting (TEXT("r.LumenScene.Radiosity.ProbePlaneWeighting"), GRadiosityFilteringProbePlaneWeighting, TEXT("Whether to weight Radiosity probes by plane distance, useful to prevent leaking."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarRadiosityFilteringProbeOcclusion (TEXT("r.LumenScene.Radiosity.ProbeOcclusion"), GRadiosityFilteringProbeOcclusion, TEXT("Whether to depth test against the probe hit depths during interpolation and filtering to reduce leaking. Not available with Software Ray Tracing due to imprecision."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarRadiosityFilteringProbeOcclusionStrength (TEXT("r.LumenScene.Radiosity.ProbeOcclusionStrength"), GRadiosityFilteringProbeOcclusionStrength, TEXT("Strength of probe occlusion. 0 = No probe occlusion, 1 = Attempt to stop all leaking, but has self-occlusion artifacts, .5 (default) = tradeoff between the extremes."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarRadiosityProbePlaneWeightingDepthScale (TEXT("r.LumenScene.Radiosity.SpatialFilterProbes.PlaneWeightingDepthScale"), GRadiosityProbePlaneWeightingDepthScale, TEXT("Controls the distance at which probes can be interpolated from. Higher values introduce leaking."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarLumenRadiosityMaxRayIntensity (TEXT("r.LumenScene.Radiosity.MaxRayIntensity"), GLumenRadiosityMaxRayIntensity, TEXT("Clamps Radiosity trace intensity, relative to current view exposure. Useful for reducing artifacts from small bright emissive sources, but loses energy and adds view dependence."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarLumenRadiositySurfaceBias (TEXT("r.LumenScene.Radiosity.DistanceFieldSurfaceBias"), GLumenRadiosityDistanceFieldSurfaceBias, TEXT("."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarLumenRadiosityDistanceFieldSurfaceBias (TEXT("r.LumenScene.Radiosity.DistanceFieldSurfaceSlopeBias"), GLumenRadiosityDistanceFieldSurfaceBias, TEXT("."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarLumenRadiosityHardwareRayTracingSurfaceBias (TEXT("r.LumenScene.Radiosity.HardwareRayTracing.SurfaceBias"), GLumenRadiosityHardwareRayTracingSurfaceBias, TEXT("."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarLumenRadiosityHardwareRayTracingSlopeSurfaceBias (TEXT("r.LumenScene.Radiosity.HardwareRayTracing.SlopeSurfaceBias"), GLumenRadiosityHardwareRayTracingSurfaceSlopeBias, TEXT("."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarLumenRadiosityTemporalAccumulation (TEXT("r.LumenScene.Radiosity.Temporal"), GLumenRadiosityTemporalAccumulation, TEXT("Whether to use temporal super sampling on Radiosity. Increases quality, but also adds latency to the speed that lighting changes propagate, and animated noise in the results."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarLumenRadiosityTemporalMaxFramesAccumulated (TEXT("r.LumenScene.Radiosity.Temporal.MaxFramesAccumulated"), GLumenRadiosityTemporalMaxFramesAccumulated, TEXT("Lower values cause the temporal filter to propagate lighting changes faster, but also increase flickering from noise."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarLumenRadiosityFixedJitterIndex (TEXT("r.LumenScene.Radiosity.Temporal.FixedJitterIndex"), GLumenRadiosityFixedJitterIndex, TEXT("If zero or greater, overrides the temporal jitter index with a fixed index. Useful for debugging and inspecting sampling patterns."), ECVF_Scalability\|ECVF_RenderThreadSafe)

void	LumenRadiosity::AddRadiosityPass (FRDGBuilder &GraphBuilder, const FScene *Scene, const TArray< FViewInfo > &Views, bool bRenderSkylight, FLumenSceneData &LumenSceneData, const FLumenSceneFrameTemporaries &FrameTemporaries, const LumenRadiosity::FFrameTemporaries &RadiosityFrameTemporaries, const FLumenCardUpdateContext &CardUpdateContext, FLumenCardTileUpdateContext &CardTileUpdateContext, ERDGPassFlags ComputePassFlags)

uint32	LumenRadiosity::GetRadiosityProbeSpacing (const FViewInfo &View)

int32	LumenRadiosity::GetHemisphereProbeResolution (const FViewInfo &View)

bool	LumenRadiosity::UseTemporalAccumulation ()

bool	LumenRadiosity::UseProbeOcclusion ()

	IMPLEMENT_GLOBAL_SHADER (FBuildRadiosityTilesCS, "/Engine/Private/Lumen/Radiosity/LumenRadiosityCulling.usf", "BuildRadiosityTilesCS", SF_Compute)

	IMPLEMENT_GLOBAL_SHADER (FLumenRadiosityIndirectArgsCS, "/Engine/Private/Lumen/Radiosity/LumenRadiosity.usf", "LumenRadiosityIndirectArgsCS", SF_Compute)

	IMPLEMENT_GLOBAL_SHADER (FLumenRadiosityDistanceFieldTracingCS, "/Engine/Private/Lumen/Radiosity/LumenRadiosity.usf", "LumenRadiosityDistanceFieldTracingCS", SF_Compute)

	IMPLEMENT_GLOBAL_SHADER (FLumenRadiositySpatialFilterProbeRadiance, "/Engine/Private/Lumen/Radiosity/LumenRadiosity.usf", "LumenRadiositySpatialFilterProbeRadiance", SF_Compute)

	IMPLEMENT_GLOBAL_SHADER (FLumenRadiosityConvertToSH, "/Engine/Private/Lumen/Radiosity/LumenRadiosity.usf", "LumenRadiosityConvertToSH", SF_Compute)

	IMPLEMENT_GLOBAL_SHADER (FLumenRadiosityIntegrateCS, "/Engine/Private/Lumen/Radiosity/LumenRadiosity.usf", "LumenRadiosityIntegrateCS", SF_Compute)

FRDGTextureRef	RegisterOrCreateRadiosityAtlas (FRDGBuilder &GraphBuilder, const TRefCountPtr< IPooledRenderTarget > &AtlasRT, const TCHAR *AtlasName, FIntPoint AtlasSize, EPixelFormat AtlasFormat, bool &bIndirectLightingHistoryValid)

	IMPLEMENT_GLOBAL_SHADER (FBuildVisualizeProbesCS, "/Engine/Private/Lumen/Radiosity/LumenVisualizeRadiosityProbes.usf", "BuildVisualizeProbesCS", SF_Compute)

	IMPLEMENT_GLOBAL_SHADER (FVisualizeRadiosityProbesVS, "/Engine/Private/Lumen/Radiosity/LumenVisualizeRadiosityProbes.usf", "VisualizeRadiosityProbesVS", SF_Vertex)

	IMPLEMENT_GLOBAL_SHADER (FVisualizeRadiosityProbesPS, "/Engine/Private/Lumen/Radiosity/LumenVisualizeRadiosityProbes.usf", "VisualizeRadiosityProbesPS", SF_Pixel)

Variables
int32	GLumenRadiosity = 1

int32	GLumenRadiosityProbeSpacing = 4

int32	GLumenRadiosityHemisphereProbeResolution = 4

int32	GLumenRadiositySpatialFilterProbes = 1

int32	GLumenRadiositySpatialFilterProbesKernelSize = 1

int32	GRadiosityFilteringProbePlaneWeighting = 1

int32	GRadiosityFilteringProbeOcclusion = 0

float	GRadiosityFilteringProbeOcclusionStrength = .5f

float	GRadiosityProbePlaneWeightingDepthScale = -100.0f

float	GLumenRadiosityMaxRayIntensity = 40.0f

float	GLumenRadiosityDistanceFieldSurfaceBias = 10.0f

float	GLumenRadiosityDistanceFieldSurfaceSlopeBias = 5.0f

float	GLumenRadiosityHardwareRayTracingSurfaceBias = 0.1f

float	GLumenRadiosityHardwareRayTracingSurfaceSlopeBias = 0.2f

int32	GLumenRadiosityTemporalAccumulation = 1

int32	GLumenRadiosityTemporalMaxFramesAccumulated = 4

int32	GLumenRadiosityFixedJitterIndex = -1

TAutoConsoleVariable< int32 >	CVarLumenSceneRadiosityVisualizeProbes (TEXT("r.LumenScene.Radiosity.VisualizeProbes"), 0, TEXT("Whether to visualize radiosity probes."), ECVF_Scalability\|ECVF_RenderThreadSafe)

TAutoConsoleVariable< int32 >	CVarLumenSceneRadiosityVisualizeProbeRadius (TEXT("r.LumenScene.Radiosity.VisualizeProbeRadius"), 10.0f, TEXT("Radius of a visualized radiosity probe."), ECVF_Scalability\|ECVF_RenderThreadSafe)

TAutoConsoleVariable< int32 >	CVarLumenSceneRadiosityVisualizeProbesShowInvalid (TEXT("r.LumenScene.Radiosity.VisualizeProbes.ShowInvalid"), 0, TEXT("Whether to show invalid radiosity probes in visualization."), ECVF_RenderThreadSafe)

Enumeration Type Documentation

◆ ERadiosityIndirectArgs

enum class ERadiosityIndirectArgs

strong

Enumerator
NumTracesDiv64
NumTracesDiv32
ThreadPerProbe
HardwareRayTracingThreadPerTrace
MAX

Function Documentation

◆ CVarLumenRadiosity()

FAutoConsoleVariableRef CVarLumenRadiosity	(	TEXT("r.LumenScene.Radiosity")	,
		GLumenRadiosity	,
		TEXT("Whether to enable the Radiosity, which is an indirect lighting gather from the Surface Cache that provides multibounce diffuse.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarLumenRadiosityDistanceFieldSurfaceBias()

FAutoConsoleVariableRef CVarLumenRadiosityDistanceFieldSurfaceBias	(	TEXT("r.LumenScene.Radiosity.DistanceFieldSurfaceSlopeBias")	,
		GLumenRadiosityDistanceFieldSurfaceBias	,
		TEXT(".")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarLumenRadiosityFixedJitterIndex()

FAutoConsoleVariableRef CVarLumenRadiosityFixedJitterIndex	(	TEXT("r.LumenScene.Radiosity.Temporal.FixedJitterIndex")	,
		GLumenRadiosityFixedJitterIndex	,
		TEXT("If zero or greater, overrides the temporal jitter index with a fixed index. Useful for debugging and inspecting sampling patterns.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarLumenRadiosityHardwareRayTracingSlopeSurfaceBias()

FAutoConsoleVariableRef CVarLumenRadiosityHardwareRayTracingSlopeSurfaceBias	(	TEXT("r.LumenScene.Radiosity.HardwareRayTracing.SlopeSurfaceBias")	,
		GLumenRadiosityHardwareRayTracingSurfaceSlopeBias	,
		TEXT(".")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarLumenRadiosityHardwareRayTracingSurfaceBias()

FAutoConsoleVariableRef CVarLumenRadiosityHardwareRayTracingSurfaceBias	(	TEXT("r.LumenScene.Radiosity.HardwareRayTracing.SurfaceBias")	,
		GLumenRadiosityHardwareRayTracingSurfaceBias	,
		TEXT(".")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarLumenRadiosityHemisphereProbeResolution()

FAutoConsoleVariableRef CVarLumenRadiosityHemisphereProbeResolution	(	TEXT("r.LumenScene.Radiosity.HemisphereProbeResolution")	,
		GLumenRadiosityHemisphereProbeResolution	,
		TEXT("Number of traces along one dimension of the hemisphere probe layout.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarLumenRadiosityMaxRayIntensity()

FAutoConsoleVariableRef CVarLumenRadiosityMaxRayIntensity	(	TEXT("r.LumenScene.Radiosity.MaxRayIntensity")	,
		GLumenRadiosityMaxRayIntensity	,
		TEXT("Clamps Radiosity trace intensity, relative to current view exposure. Useful for reducing artifacts from small bright emissive sources, but loses energy and adds view dependence.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarLumenRadiosityProbeSpacing()

FAutoConsoleVariableRef CVarLumenRadiosityProbeSpacing	(	TEXT("r.LumenScene.Radiosity.ProbeSpacing")	,
		GLumenRadiosityProbeSpacing	,
		TEXT("Distance between probes, in Surface Cache texels")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarLumenRadiositySpatialFilterProbes()

FAutoConsoleVariableRef CVarLumenRadiositySpatialFilterProbes	(	TEXT("r.LumenScene.Radiosity.SpatialFilterProbes")	,
		GLumenRadiositySpatialFilterProbes	,
		TEXT("Whether to spatially filter Radiosity probes. Filtering reduces noise but increases leaking.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarLumenRadiositySpatialFilterProbesKernelSize()

FAutoConsoleVariableRef CVarLumenRadiositySpatialFilterProbesKernelSize	(	TEXT("r.LumenScene.Radiosity.SpatialFilterProbes.KernelSize")	,
		GLumenRadiositySpatialFilterProbesKernelSize	,
		TEXT("Larger kernels reduce noise but increase leaking.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarLumenRadiositySurfaceBias()

FAutoConsoleVariableRef CVarLumenRadiositySurfaceBias	(	TEXT("r.LumenScene.Radiosity.DistanceFieldSurfaceBias")	,
		GLumenRadiosityDistanceFieldSurfaceBias	,
		TEXT(".")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarLumenRadiosityTemporalAccumulation()

FAutoConsoleVariableRef CVarLumenRadiosityTemporalAccumulation	(	TEXT("r.LumenScene.Radiosity.Temporal")	,
		GLumenRadiosityTemporalAccumulation	,
		TEXT("Whether to use temporal super sampling on Radiosity. Increases quality, but also adds latency to the speed that lighting changes propagate, and animated noise in the results.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarLumenRadiosityTemporalMaxFramesAccumulated()

FAutoConsoleVariableRef CVarLumenRadiosityTemporalMaxFramesAccumulated	(	TEXT("r.LumenScene.Radiosity.Temporal.MaxFramesAccumulated")	,
		GLumenRadiosityTemporalMaxFramesAccumulated	,
		TEXT("Lower values cause the temporal filter to propagate lighting changes faster, but also increase flickering from noise.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarRadiosityFilteringProbeOcclusion()

FAutoConsoleVariableRef CVarRadiosityFilteringProbeOcclusion	(	TEXT("r.LumenScene.Radiosity.ProbeOcclusion")	,
		GRadiosityFilteringProbeOcclusion	,
		TEXT("Whether to depth test against the probe hit depths during interpolation and filtering to reduce leaking. Not available with Software Ray Tracing due to imprecision.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarRadiosityFilteringProbeOcclusionStrength()

FAutoConsoleVariableRef CVarRadiosityFilteringProbeOcclusionStrength	(	TEXT("r.LumenScene.Radiosity.ProbeOcclusionStrength")	,
		GRadiosityFilteringProbeOcclusionStrength	,
		TEXT("Strength of probe occlusion. 0 = No probe occlusion, 1 = Attempt to stop all leaking, but has self-occlusion artifacts, .5 (default) = tradeoff between the extremes.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarRadiosityFilteringProbePlaneWeighting()

FAutoConsoleVariableRef CVarRadiosityFilteringProbePlaneWeighting	(	TEXT("r.LumenScene.Radiosity.ProbePlaneWeighting")	,
		GRadiosityFilteringProbePlaneWeighting	,
		TEXT("Whether to weight Radiosity probes by plane distance, useful to prevent leaking.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarRadiosityProbePlaneWeightingDepthScale()

FAutoConsoleVariableRef CVarRadiosityProbePlaneWeightingDepthScale	(	TEXT("r.LumenScene.Radiosity.SpatialFilterProbes.PlaneWeightingDepthScale")	,
		GRadiosityProbePlaneWeightingDepthScale	,
		TEXT("Controls the distance at which probes can be interpolated from. Higher values introduce leaking.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ IMPLEMENT_GLOBAL_SHADER() [1/9]

IMPLEMENT_GLOBAL_SHADER	(	FBuildRadiosityTilesCS	,
		"/Engine/Private/Lumen/Radiosity/LumenRadiosityCulling.usf"	,
		"BuildRadiosityTilesCS"	,
		SF_Compute
	)

◆ IMPLEMENT_GLOBAL_SHADER() [2/9]

IMPLEMENT_GLOBAL_SHADER	(	FBuildVisualizeProbesCS	,
		"/Engine/Private/Lumen/Radiosity/LumenVisualizeRadiosityProbes.usf"	,
		"BuildVisualizeProbesCS"	,
		SF_Compute
	)

◆ IMPLEMENT_GLOBAL_SHADER() [3/9]

IMPLEMENT_GLOBAL_SHADER	(	FLumenRadiosityConvertToSH	,
		"/Engine/Private/Lumen/Radiosity/LumenRadiosity.usf"	,
		"LumenRadiosityConvertToSH"	,
		SF_Compute
	)

◆ IMPLEMENT_GLOBAL_SHADER() [4/9]

IMPLEMENT_GLOBAL_SHADER	(	FLumenRadiosityDistanceFieldTracingCS	,
		"/Engine/Private/Lumen/Radiosity/LumenRadiosity.usf"	,
		"LumenRadiosityDistanceFieldTracingCS"	,
		SF_Compute
	)

◆ IMPLEMENT_GLOBAL_SHADER() [5/9]

IMPLEMENT_GLOBAL_SHADER	(	FLumenRadiosityIndirectArgsCS	,
		"/Engine/Private/Lumen/Radiosity/LumenRadiosity.usf"	,
		"LumenRadiosityIndirectArgsCS"	,
		SF_Compute
	)

◆ IMPLEMENT_GLOBAL_SHADER() [6/9]

IMPLEMENT_GLOBAL_SHADER	(	FLumenRadiosityIntegrateCS	,
		"/Engine/Private/Lumen/Radiosity/LumenRadiosity.usf"	,
		"LumenRadiosityIntegrateCS"	,
		SF_Compute
	)

◆ IMPLEMENT_GLOBAL_SHADER() [7/9]

IMPLEMENT_GLOBAL_SHADER	(	FLumenRadiositySpatialFilterProbeRadiance	,
		"/Engine/Private/Lumen/Radiosity/LumenRadiosity.usf"	,
		"LumenRadiositySpatialFilterProbeRadiance"	,
		SF_Compute
	)

◆ IMPLEMENT_GLOBAL_SHADER() [8/9]

IMPLEMENT_GLOBAL_SHADER	(	FVisualizeRadiosityProbesPS	,
		"/Engine/Private/Lumen/Radiosity/LumenVisualizeRadiosityProbes.usf"	,
		"VisualizeRadiosityProbesPS"	,
		SF_Pixel
	)

◆ IMPLEMENT_GLOBAL_SHADER() [9/9]

IMPLEMENT_GLOBAL_SHADER	(	FVisualizeRadiosityProbesVS	,
		"/Engine/Private/Lumen/Radiosity/LumenVisualizeRadiosityProbes.usf"	,
		"VisualizeRadiosityProbesVS"	,
		SF_Vertex
	)

◆ RegisterOrCreateRadiosityAtlas()

FRDGTextureRef RegisterOrCreateRadiosityAtlas	(	FRDGBuilder &	GraphBuilder,
		const TRefCountPtr< IPooledRenderTarget > &	AtlasRT,
		const TCHAR *	AtlasName,
		FIntPoint	AtlasSize,
		EPixelFormat	AtlasFormat,
		bool &	bIndirectLightingHistoryValid
	)

Variable Documentation

◆ CVarLumenSceneRadiosityVisualizeProbeRadius

TAutoConsoleVariable< int32 > CVarLumenSceneRadiosityVisualizeProbeRadius(TEXT("r.LumenScene.Radiosity.VisualizeProbeRadius"), 10.0f, TEXT("Radius of a visualized radiosity probe."), ECVF_Scalability\|ECVF_RenderThreadSafe)	(	TEXT("r.LumenScene.Radiosity.VisualizeProbeRadius")	,
		10.	0f,
		TEXT("Radius of a visualized radiosity probe.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarLumenSceneRadiosityVisualizeProbes

TAutoConsoleVariable< int32 > CVarLumenSceneRadiosityVisualizeProbes(TEXT("r.LumenScene.Radiosity.VisualizeProbes"), 0, TEXT("Whether to visualize radiosity probes."), ECVF_Scalability\|ECVF_RenderThreadSafe)	(	TEXT("r.LumenScene.Radiosity.VisualizeProbes")	,
		0	,
		TEXT("Whether to visualize radiosity probes.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarLumenSceneRadiosityVisualizeProbesShowInvalid

TAutoConsoleVariable< int32 > CVarLumenSceneRadiosityVisualizeProbesShowInvalid(TEXT("r.LumenScene.Radiosity.VisualizeProbes.ShowInvalid"), 0, TEXT("Whether to show invalid radiosity probes in visualization."), ECVF_RenderThreadSafe)	(	TEXT("r.LumenScene.Radiosity.VisualizeProbes.ShowInvalid")	,
		0	,
		TEXT("Whether to show invalid radiosity probes in visualization.")	,
		ECVF_RenderThreadSafe
	)

◆ GLumenRadiosity

int32 GLumenRadiosity = 1

◆ GLumenRadiosityDistanceFieldSurfaceBias

float GLumenRadiosityDistanceFieldSurfaceBias = 10.0f

◆ GLumenRadiosityDistanceFieldSurfaceSlopeBias

float GLumenRadiosityDistanceFieldSurfaceSlopeBias = 5.0f

◆ GLumenRadiosityFixedJitterIndex

int32 GLumenRadiosityFixedJitterIndex = -1

◆ GLumenRadiosityHardwareRayTracingSurfaceBias

float GLumenRadiosityHardwareRayTracingSurfaceBias = 0.1f

◆ GLumenRadiosityHardwareRayTracingSurfaceSlopeBias

float GLumenRadiosityHardwareRayTracingSurfaceSlopeBias = 0.2f

◆ GLumenRadiosityHemisphereProbeResolution

int32 GLumenRadiosityHemisphereProbeResolution = 4

◆ GLumenRadiosityMaxRayIntensity

float GLumenRadiosityMaxRayIntensity = 40.0f

◆ GLumenRadiosityProbeSpacing

int32 GLumenRadiosityProbeSpacing = 4

◆ GLumenRadiositySpatialFilterProbes

int32 GLumenRadiositySpatialFilterProbes = 1

◆ GLumenRadiositySpatialFilterProbesKernelSize

int32 GLumenRadiositySpatialFilterProbesKernelSize = 1

◆ GLumenRadiosityTemporalAccumulation

int32 GLumenRadiosityTemporalAccumulation = 1

◆ GLumenRadiosityTemporalMaxFramesAccumulated

int32 GLumenRadiosityTemporalMaxFramesAccumulated = 4

◆ GRadiosityFilteringProbeOcclusion

int32 GRadiosityFilteringProbeOcclusion = 0

◆ GRadiosityFilteringProbeOcclusionStrength

float GRadiosityFilteringProbeOcclusionStrength = .5f

◆ GRadiosityFilteringProbePlaneWeighting

int32 GRadiosityFilteringProbePlaneWeighting = 1

◆ GRadiosityProbePlaneWeightingDepthScale

float GRadiosityProbePlaneWeightingDepthScale = -100.0f

Classes

Namespaces

Enumerations

Functions

Variables