LumenRadianceCache.cpp File Reference

#include "LumenRadianceCache.h"
#include "LumenRadianceCacheInternal.h"
#include "RendererPrivate.h"
#include "ScenePrivate.h"
#include "SceneUtils.h"
#include "PipelineStateCache.h"
#include "ShaderParameterStruct.h"
#include "DistanceFieldAmbientOcclusion.h"
#include "LumenScreenProbeGather.h"
#include "LumenSceneLighting.h"
#include "ShaderPrintParameters.h"

Classes
class	FMarkRadianceProbesUsedByVisualizeCS
class	FClearProbeFreeList
class	FClearProbeIndirectionCS
class	FUpdateCacheForUsedProbesCS
class	FClearRadianceCacheUpdateResourcesCS
class	FAllocateUsedProbesCS
class	FAllocateProbeTracesCS
class	FSelectMaxPriorityBucketCS
class	FRadianceCacheUpdateStatsCS
class	FSetupProbeIndirectArgsCS
class	FComputeProbeWorldOffsetsCS
class	FClearProbePDFs
class	FScatterScreenProbeBRDFToRadianceProbesCS
class	FGenerateProbeTraceTilesCS
class	FSetupTraceFromProbesCS
class	FSortProbeTraceTilesCS
class	FRadianceCacheTraceFromProbesCS
class	FFilterProbeRadianceWithGatherCS
class	FCalculateProbeIrradianceCS
class	FPrepareProbeOcclusionCS
class	FFixupBordersAndGenerateMipsCS
struct	FClipmapLevelGeometry
struct	FClipmapGeometry

Namespaces
namespace	LumenRadianceCache

Functions
FAutoConsoleVariableRef	GVarLumenRadianceCacheFilterMaxRadianceHitAngle (TEXT("r.Lumen.RadianceCache.SpatialFilterMaxRadianceHitAngle"), GLumenRadianceCacheFilterMaxRadianceHitAngle, TEXT("In Degrees. Larger angles allow filtering of nearby features but more leaking."), ECVF_Scalability|ECVF_RenderThreadSafe)
FAutoConsoleVariableRef	CVarLumenRadianceCacheForceUniformTraceTileLevel (TEXT("r.Lumen.RadianceCache.ForceUniformTraceTileLevel"), GLumenRadianceCacheForceUniformTraceTileLevel, TEXT("When set to >= 0, forces a uniform trace tile level for debugging, and overrides trace tile BRDF importance sampling. Valid range is [0, 2]. 0 = half res, 1 = full res, 2 = supersampled"), ECVF_Scalability|ECVF_RenderThreadSafe)
FAutoConsoleVariableRef	CVarLumenRadianceCacheSupersampleTileBRDFThreshold (TEXT("r.Lumen.RadianceCache.SupersampleTileBRDFThreshold"), GLumenRadianceCacheSupersampleTileBRDFThreshold, TEXT("Value of the BRDF [0-1] above which to trace more rays to supersample the probe radiance."), ECVF_Scalability|ECVF_RenderThreadSafe)
FAutoConsoleVariableRef	CVarLumenRadianceCacheDownsampleDistanceFromCamera (TEXT("r.Lumen.RadianceCache.DownsampleDistanceFromCamera"), GLumenRadianceCacheDownsampleDistanceFromCamera, TEXT("Probes further than this distance from the camera are always downsampled."), ECVF_Scalability|ECVF_RenderThreadSafe)
FRadianceCacheInputs	LumenRadianceCache::GetDefaultRadianceCacheInputs ()
void	LumenRadianceCache::GetInterpolationParametersNoResources (FRDGBuilder &GraphBuilder, const FRadianceCacheState &RadianceCacheState, const LumenRadianceCache::FRadianceCacheInputs &RadianceCacheInputs, FRadianceCacheInterpolationParameters &OutParameters)
void	LumenRadianceCache::GetInterpolationParameters (const FViewInfo &View, FRDGBuilder &GraphBuilder, const FRadianceCacheState &RadianceCacheState, const LumenRadianceCache::FRadianceCacheInputs &RadianceCacheInputs, FRadianceCacheInterpolationParameters &OutParameters)
FRadianceCacheMarkParameters	LumenRadianceCache::GetMarkParameters (FRDGTextureUAVRef RadianceProbeIndirectionTextureUAV, const FRadianceCacheState &RadianceCacheState, const LumenRadianceCache::FRadianceCacheInputs &RadianceCacheInputs)
	IMPLEMENT_GLOBAL_SHADER (FMarkRadianceProbesUsedByVisualizeCS, "/Engine/Private/Lumen/LumenRadianceCache.usf", "MarkRadianceProbesUsedByVisualizeCS", SF_Compute)
void	MarkUsedProbesForVisualize (FRDGBuilder &GraphBuilder, const FViewInfo &View, const LumenRadianceCache::FRadianceCacheMarkParameters &RadianceCacheMarkParameters, ERDGPassFlags ComputePassFlags)
	IMPLEMENT_GLOBAL_SHADER (FClearProbeFreeList, "/Engine/Private/Lumen/LumenRadianceCacheUpdate.usf", "ClearProbeFreeListCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FClearProbeIndirectionCS, "/Engine/Private/Lumen/LumenRadianceCache.usf", "ClearProbeIndirectionCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FUpdateCacheForUsedProbesCS, "/Engine/Private/Lumen/LumenRadianceCacheUpdate.usf", "UpdateCacheForUsedProbesCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FClearRadianceCacheUpdateResourcesCS, "/Engine/Private/Lumen/LumenRadianceCacheUpdate.usf", "ClearRadianceCacheUpdateResourcesCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FAllocateUsedProbesCS, "/Engine/Private/Lumen/LumenRadianceCacheUpdate.usf", "AllocateUsedProbesCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FAllocateProbeTracesCS, "/Engine/Private/Lumen/LumenRadianceCacheUpdate.usf", "AllocateProbeTracesCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FSelectMaxPriorityBucketCS, "/Engine/Private/Lumen/LumenRadianceCacheUpdate.usf", "SelectMaxPriorityBucketCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FRadianceCacheUpdateStatsCS, "/Engine/Private/Lumen/LumenRadianceCacheDebug.usf", "RadianceCacheUpdateStatsCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FSetupProbeIndirectArgsCS, "/Engine/Private/Lumen/LumenRadianceCache.usf", "SetupProbeIndirectArgsCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FComputeProbeWorldOffsetsCS, "/Engine/Private/Lumen/LumenRadianceCache.usf", "ComputeProbeWorldOffsetsCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FClearProbePDFs, "/Engine/Private/Lumen/LumenRadianceCache.usf", "ClearProbePDFs", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FScatterScreenProbeBRDFToRadianceProbesCS, "/Engine/Private/Lumen/LumenRadianceCache.usf", "ScatterScreenProbeBRDFToRadianceProbesCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FGenerateProbeTraceTilesCS, "/Engine/Private/Lumen/LumenRadianceCache.usf", "GenerateProbeTraceTilesCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FSetupTraceFromProbesCS, "/Engine/Private/Lumen/LumenRadianceCache.usf", "SetupTraceFromProbesCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FSortProbeTraceTilesCS, "/Engine/Private/Lumen/LumenRadianceCache.usf", "SortProbeTraceTilesCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FRadianceCacheTraceFromProbesCS, "/Engine/Private/Lumen/LumenRadianceCache.usf", "TraceFromProbesCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FFilterProbeRadianceWithGatherCS, "/Engine/Private/Lumen/LumenRadianceCache.usf", "FilterProbeRadianceWithGatherCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FCalculateProbeIrradianceCS, "/Engine/Private/Lumen/LumenRadianceCache.usf", "CalculateProbeIrradianceCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FPrepareProbeOcclusionCS, "/Engine/Private/Lumen/LumenRadianceCache.usf", "PrepareProbeOcclusionCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FFixupBordersAndGenerateMipsCS, "/Engine/Private/Lumen/LumenRadianceCache.usf", "FixupBordersAndGenerateMipsCS", SF_Compute)
bool	UpdateRadianceCacheState (FRDGBuilder &GraphBuilder, const FViewInfo &View, const LumenRadianceCache::FRadianceCacheInputs &RadianceCacheInputs, FRadianceCacheState &CacheState)
bool	LumenRadianceCache::ShouldImportanceSampleBRDF (const FUpdateInputs &Inputs)
float	LumenRadianceCache::GetSupersampleDistanceFromCameraSq ()
void	LumenRadianceCache::UpdateRadianceCaches (FRDGBuilder &GraphBuilder, const FLumenSceneFrameTemporaries &FrameTemporaries, const TInlineArray< FUpdateInputs > &InputArray, TInlineArray< FUpdateOutputs > &OutputArray, const FScene *Scene, const FViewFamilyInfo &ViewFamily, bool bPropagateGlobalLightingChange, ERDGPassFlags ComputePassFlags)

Variables
int32	GRadianceCacheUpdate = 1
FAutoConsoleVariableRef	CVarRadianceCacheUpdate (TEXT("r.Lumen.RadianceCache.Update"), GRadianceCacheUpdate, TEXT("Whether to update radiance cache every frame. Useful for debugging."), ECVF_RenderThreadSafe)
int32	GRadianceCacheForceFullUpdate = 0
FAutoConsoleVariableRef	CVarRadianceForceFullUpdate (TEXT("r.Lumen.RadianceCache.ForceFullUpdate"), GRadianceCacheForceFullUpdate, TEXT("Whether to update entuire radiance cache once. Useful for debugging."), ECVF_RenderThreadSafe)
int32	GRadianceCacheOverrideCacheOcclusionLighting = 0
FAutoConsoleVariableRef	CVarRadianceCacheShowOnlyRadianceCacheLighting (TEXT("r.Lumen.RadianceCache.OverrideCacheOcclusionLighting"), GRadianceCacheOverrideCacheOcclusionLighting, TEXT(""), ECVF_RenderThreadSafe)
int32	GRadianceCacheShowBlackRadianceCacheLighting = 0
FAutoConsoleVariableRef	CVarRadianceCacheShowBlackRadianceCacheLighting (TEXT("r.Lumen.RadianceCache.ShowBlackRadianceCacheLighting"), GRadianceCacheShowBlackRadianceCacheLighting, TEXT(""), ECVF_RenderThreadSafe)
int32	GRadianceCacheFilterProbes = 1
FAutoConsoleVariableRef	CVarRadianceCacheFilterProbes (TEXT("r.Lumen.RadianceCache.SpatialFilterProbes"), GRadianceCacheFilterProbes, TEXT("Whether to filter probe radiance between neighbors"), ECVF_RenderThreadSafe)
int32	GRadianceCacheSortTraceTiles = 0
FAutoConsoleVariableRef	CVarRadianceCacheSortTraceTiles (TEXT("r.Lumen.RadianceCache.SortTraceTiles"), GRadianceCacheSortTraceTiles, TEXT("Whether to sort Trace Tiles by direction before tracing to extract coherency"), ECVF_RenderThreadSafe)
float	GLumenRadianceCacheFilterMaxRadianceHitAngle = .2f
int32	GLumenRadianceCacheForceUniformTraceTileLevel = -1
float	GLumenRadianceCacheSupersampleTileBRDFThreshold = .1f
float	GLumenRadianceCacheDownsampleDistanceFromCamera = 4000.0f
constexpr uint32	LumenRadianceCache::PRIORITY_HISTOGRAM_SIZE = 16
constexpr uint32	LumenRadianceCache::PROBES_TO_UPDATE_TRACE_COST_STRIDE = 2

Function Documentation

CVarLumenRadianceCacheDownsampleDistanceFromCamera()

FAutoConsoleVariableRef CVarLumenRadianceCacheDownsampleDistanceFromCamera	(	TEXT("r.Lumen.RadianceCache.DownsampleDistanceFromCamera")	,
		GLumenRadianceCacheDownsampleDistanceFromCamera	,
		TEXT("Probes further than this distance from the camera are always downsampled.")	,
		ECVF_Scalability|	ECVF_RenderThreadSafe
	)

CVarLumenRadianceCacheForceUniformTraceTileLevel()

FAutoConsoleVariableRef CVarLumenRadianceCacheForceUniformTraceTileLevel	(	TEXT("r.Lumen.RadianceCache.ForceUniformTraceTileLevel")	,
		GLumenRadianceCacheForceUniformTraceTileLevel	,
		TEXT("When set to >= 0, forces a uniform trace tile level for debugging, and overrides trace tile BRDF importance sampling. Valid range is [0, 2]. 0 = half res, 1 = full res, 2 = supersampled")	,
		ECVF_Scalability|	ECVF_RenderThreadSafe
	)

CVarLumenRadianceCacheSupersampleTileBRDFThreshold()

FAutoConsoleVariableRef CVarLumenRadianceCacheSupersampleTileBRDFThreshold	(	TEXT("r.Lumen.RadianceCache.SupersampleTileBRDFThreshold")	,
		GLumenRadianceCacheSupersampleTileBRDFThreshold	,
		TEXT("Value of the BRDF [0-1] above which to trace more rays to supersample the probe radiance.")	,
		ECVF_Scalability|	ECVF_RenderThreadSafe
	)

GVarLumenRadianceCacheFilterMaxRadianceHitAngle()

FAutoConsoleVariableRef GVarLumenRadianceCacheFilterMaxRadianceHitAngle	(	TEXT("r.Lumen.RadianceCache.SpatialFilterMaxRadianceHitAngle")	,
		GLumenRadianceCacheFilterMaxRadianceHitAngle	,
		TEXT("In Degrees. Larger angles allow filtering of nearby features but more leaking.")	,
		ECVF_Scalability|	ECVF_RenderThreadSafe
	)

IMPLEMENT_GLOBAL_SHADER() [1/21]

IMPLEMENT_GLOBAL_SHADER	(	FAllocateProbeTracesCS	,
		"/Engine/Private/Lumen/LumenRadianceCacheUpdate.usf"	,
		"AllocateProbeTracesCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [2/21]

IMPLEMENT_GLOBAL_SHADER	(	FAllocateUsedProbesCS	,
		"/Engine/Private/Lumen/LumenRadianceCacheUpdate.usf"	,
		"AllocateUsedProbesCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [3/21]

IMPLEMENT_GLOBAL_SHADER	(	FCalculateProbeIrradianceCS	,
		"/Engine/Private/Lumen/LumenRadianceCache.usf"	,
		"CalculateProbeIrradianceCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [4/21]

IMPLEMENT_GLOBAL_SHADER	(	FClearProbeFreeList	,
		"/Engine/Private/Lumen/LumenRadianceCacheUpdate.usf"	,
		"ClearProbeFreeListCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [5/21]

IMPLEMENT_GLOBAL_SHADER	(	FClearProbeIndirectionCS	,
		"/Engine/Private/Lumen/LumenRadianceCache.usf"	,
		"ClearProbeIndirectionCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [6/21]

IMPLEMENT_GLOBAL_SHADER	(	FClearProbePDFs	,
		"/Engine/Private/Lumen/LumenRadianceCache.usf"	,
		"ClearProbePDFs"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [7/21]

IMPLEMENT_GLOBAL_SHADER	(	FClearRadianceCacheUpdateResourcesCS	,
		"/Engine/Private/Lumen/LumenRadianceCacheUpdate.usf"	,
		"ClearRadianceCacheUpdateResourcesCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [8/21]

IMPLEMENT_GLOBAL_SHADER	(	FComputeProbeWorldOffsetsCS	,
		"/Engine/Private/Lumen/LumenRadianceCache.usf"	,
		"ComputeProbeWorldOffsetsCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [9/21]

IMPLEMENT_GLOBAL_SHADER	(	FFilterProbeRadianceWithGatherCS	,
		"/Engine/Private/Lumen/LumenRadianceCache.usf"	,
		"FilterProbeRadianceWithGatherCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [10/21]

IMPLEMENT_GLOBAL_SHADER	(	FFixupBordersAndGenerateMipsCS	,
		"/Engine/Private/Lumen/LumenRadianceCache.usf"	,
		"FixupBordersAndGenerateMipsCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [11/21]

IMPLEMENT_GLOBAL_SHADER	(	FGenerateProbeTraceTilesCS	,
		"/Engine/Private/Lumen/LumenRadianceCache.usf"	,
		"GenerateProbeTraceTilesCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [12/21]

IMPLEMENT_GLOBAL_SHADER	(	FMarkRadianceProbesUsedByVisualizeCS	,
		"/Engine/Private/Lumen/LumenRadianceCache.usf"	,
		"MarkRadianceProbesUsedByVisualizeCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [13/21]

IMPLEMENT_GLOBAL_SHADER	(	FPrepareProbeOcclusionCS	,
		"/Engine/Private/Lumen/LumenRadianceCache.usf"	,
		"PrepareProbeOcclusionCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [14/21]

IMPLEMENT_GLOBAL_SHADER	(	FRadianceCacheTraceFromProbesCS	,
		"/Engine/Private/Lumen/LumenRadianceCache.usf"	,
		"TraceFromProbesCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [15/21]

IMPLEMENT_GLOBAL_SHADER	(	FRadianceCacheUpdateStatsCS	,
		"/Engine/Private/Lumen/LumenRadianceCacheDebug.usf"	,
		"RadianceCacheUpdateStatsCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [16/21]

IMPLEMENT_GLOBAL_SHADER	(	FScatterScreenProbeBRDFToRadianceProbesCS	,
		"/Engine/Private/Lumen/LumenRadianceCache.usf"	,
		"ScatterScreenProbeBRDFToRadianceProbesCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [17/21]

IMPLEMENT_GLOBAL_SHADER	(	FSelectMaxPriorityBucketCS	,
		"/Engine/Private/Lumen/LumenRadianceCacheUpdate.usf"	,
		"SelectMaxPriorityBucketCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [18/21]

IMPLEMENT_GLOBAL_SHADER	(	FSetupProbeIndirectArgsCS	,
		"/Engine/Private/Lumen/LumenRadianceCache.usf"	,
		"SetupProbeIndirectArgsCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [19/21]

IMPLEMENT_GLOBAL_SHADER	(	FSetupTraceFromProbesCS	,
		"/Engine/Private/Lumen/LumenRadianceCache.usf"	,
		"SetupTraceFromProbesCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [20/21]

IMPLEMENT_GLOBAL_SHADER	(	FSortProbeTraceTilesCS	,
		"/Engine/Private/Lumen/LumenRadianceCache.usf"	,
		"SortProbeTraceTilesCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [21/21]

IMPLEMENT_GLOBAL_SHADER	(	FUpdateCacheForUsedProbesCS	,
		"/Engine/Private/Lumen/LumenRadianceCacheUpdate.usf"	,
		"UpdateCacheForUsedProbesCS"	,
		SF_Compute
	)

MarkUsedProbesForVisualize()

void MarkUsedProbesForVisualize	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	View,
		const LumenRadianceCache::FRadianceCacheMarkParameters &	RadianceCacheMarkParameters,
		ERDGPassFlags	ComputePassFlags
	)

UpdateRadianceCacheState()

bool UpdateRadianceCacheState	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	View,
		const LumenRadianceCache::FRadianceCacheInputs &	RadianceCacheInputs,
		FRadianceCacheState &	CacheState
	)

Variable Documentation

CVarRadianceCacheFilterProbes

FAutoConsoleVariableRef CVarRadianceCacheFilterProbes(TEXT("r.Lumen.RadianceCache.SpatialFilterProbes"), GRadianceCacheFilterProbes, TEXT("Whether to filter probe radiance between neighbors"), ECVF_RenderThreadSafe)	(	TEXT("r.Lumen.RadianceCache.SpatialFilterProbes")	,
		GRadianceCacheFilterProbes	,
		TEXT("Whether to filter probe radiance between neighbors")	,
		ECVF_RenderThreadSafe
	)

CVarRadianceCacheShowBlackRadianceCacheLighting

FAutoConsoleVariableRef CVarRadianceCacheShowBlackRadianceCacheLighting(TEXT("r.Lumen.RadianceCache.ShowBlackRadianceCacheLighting"), GRadianceCacheShowBlackRadianceCacheLighting, TEXT(""), ECVF_RenderThreadSafe)	(	TEXT("r.Lumen.RadianceCache.ShowBlackRadianceCacheLighting")	,
		GRadianceCacheShowBlackRadianceCacheLighting	,
		TEXT("")	,
		ECVF_RenderThreadSafe
	)

CVarRadianceCacheShowOnlyRadianceCacheLighting

FAutoConsoleVariableRef CVarRadianceCacheShowOnlyRadianceCacheLighting(TEXT("r.Lumen.RadianceCache.OverrideCacheOcclusionLighting"), GRadianceCacheOverrideCacheOcclusionLighting, TEXT(""), ECVF_RenderThreadSafe)	(	TEXT("r.Lumen.RadianceCache.OverrideCacheOcclusionLighting")	,
		GRadianceCacheOverrideCacheOcclusionLighting	,
		TEXT("")	,
		ECVF_RenderThreadSafe
	)

CVarRadianceCacheSortTraceTiles

FAutoConsoleVariableRef CVarRadianceCacheSortTraceTiles(TEXT("r.Lumen.RadianceCache.SortTraceTiles"), GRadianceCacheSortTraceTiles, TEXT("Whether to sort Trace Tiles by direction before tracing to extract coherency"), ECVF_RenderThreadSafe)	(	TEXT("r.Lumen.RadianceCache.SortTraceTiles")	,
		GRadianceCacheSortTraceTiles	,
		TEXT("Whether to sort Trace Tiles by direction before tracing to extract coherency")	,
		ECVF_RenderThreadSafe
	)

CVarRadianceCacheUpdate

FAutoConsoleVariableRef CVarRadianceCacheUpdate(TEXT("r.Lumen.RadianceCache.Update"), GRadianceCacheUpdate, TEXT("Whether to update radiance cache every frame. Useful for debugging."), ECVF_RenderThreadSafe)	(	TEXT("r.Lumen.RadianceCache.Update")	,
		GRadianceCacheUpdate	,
		TEXT("Whether to update radiance cache every frame. Useful for debugging.")	,
		ECVF_RenderThreadSafe
	)

CVarRadianceForceFullUpdate

FAutoConsoleVariableRef CVarRadianceForceFullUpdate(TEXT("r.Lumen.RadianceCache.ForceFullUpdate"), GRadianceCacheForceFullUpdate, TEXT("Whether to update entuire radiance cache once. Useful for debugging."), ECVF_RenderThreadSafe)	(	TEXT("r.Lumen.RadianceCache.ForceFullUpdate")	,
		GRadianceCacheForceFullUpdate	,
		TEXT("Whether to update entuire radiance cache once. Useful for debugging.")	,
		ECVF_RenderThreadSafe
	)

GLumenRadianceCacheDownsampleDistanceFromCamera

float GLumenRadianceCacheDownsampleDistanceFromCamera = 4000.0f

GLumenRadianceCacheFilterMaxRadianceHitAngle

float GLumenRadianceCacheFilterMaxRadianceHitAngle = .2f

GLumenRadianceCacheForceUniformTraceTileLevel

int32 GLumenRadianceCacheForceUniformTraceTileLevel = -1

GLumenRadianceCacheSupersampleTileBRDFThreshold

float GLumenRadianceCacheSupersampleTileBRDFThreshold = .1f

GRadianceCacheFilterProbes

int32 GRadianceCacheFilterProbes = 1

GRadianceCacheForceFullUpdate

int32 GRadianceCacheForceFullUpdate = 0

GRadianceCacheOverrideCacheOcclusionLighting

int32 GRadianceCacheOverrideCacheOcclusionLighting = 0

GRadianceCacheShowBlackRadianceCacheLighting

int32 GRadianceCacheShowBlackRadianceCacheLighting = 0

GRadianceCacheSortTraceTiles

int32 GRadianceCacheSortTraceTiles = 0

GRadianceCacheUpdate

int32 GRadianceCacheUpdate = 1