#include "LumenSceneLighting.h"
#include "RendererPrivate.h"
#include "ScenePrivate.h"
#include "PipelineStateCache.h"
#include "ShaderParameterStruct.h"
#include "SceneTextureParameters.h"
#include "LumenMeshCards.h"
#include "LumenRadianceCache.h"
#include "ProfilingDebugging/CpuProfilerTrace.h"
#include "LumenTracingUtils.h"
#include "ShaderPrintParameters.h"
#include "LumenRadiosity.h"

Classes
class	FLumenCardCombineLightingCS

class	FClearCardUpdateContextCS

class	FBuildPageUpdatePriorityHistogramCS

class	FSelectMaxUpdateBucketCS

class	FBuildCardsUpdateListCS

class	FSetCardPageIndexIndirectArgsCS

class	FLumenSceneLightingStatsCS

Namespaces
namespace	LumenSceneLighting

namespace	LumenCardUpdateContext

Functions
FAutoConsoleVariableRef	CVarLumenSceneLightingFeedback (TEXT("r.LumenScene.Lighting.Feedback"), GLumenSceneLightingFeedback, TEXT("Whether to prioritize surface cache lighting updates based on the feedback."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarLumenSceneDirectLightingUpdateFactor (TEXT("r.LumenScene.DirectLighting.UpdateFactor"), GLumenDirectLightingUpdateFactor, TEXT("Controls for how many texels direct lighting will be updated every frame. Texels = SurfaceCacheTexels / Factor."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarLumenSceneRadiosityUpdateFactor (TEXT("r.LumenScene.Radiosity.UpdateFactor"), GLumenRadiosityUpdateFactor, TEXT("Controls for how many texels radiosity will be updated every frame. Texels = SurfaceCacheTexels / Factor."), ECVF_Scalability\|ECVF_RenderThreadSafe)

FAutoConsoleVariableRef	CVarLumenSceneLightingStats (TEXT("r.LumenScene.Lighting.Stats"), GLumenLightingStats, TEXT("GPU print out Lumen lighting update stats."), ECVF_Scalability\|ECVF_RenderThreadSafe)

uint32	GetLumenLightingStatMode ()

bool	LumenSceneLighting::UseFeedback (const FSceneViewFamily &ViewFamily)

void	SetLightingUpdateAtlasSize (FIntPoint PhysicalAtlasSize, int32 UpdateFactor, FLumenCardUpdateContext &Context)

	IMPLEMENT_GLOBAL_SHADER (FClearLumenCardsPS, "/Engine/Private/Lumen/LumenSceneLighting.usf", "ClearLumenCardsPS", SF_Pixel)

	IMPLEMENT_GLOBAL_SHADER (FCopyCardCaptureLightingToAtlasPS, "/Engine/Private/Lumen/LumenSceneLighting.usf", "CopyCardCaptureLightingToAtlasPS", SF_Pixel)

	IMPLEMENT_GLOBAL_SHADER (FRasterizeToCardsVS,"/Engine/Private/Lumen/LumenSceneLighting.usf","RasterizeToCardsVS", SF_Vertex)

	IMPLEMENT_GLOBAL_SHADER (FLumenCardCombineLightingCS, "/Engine/Private/Lumen/LumenSceneLighting.usf", "CombineLumenSceneLightingCS", SF_Compute)

	DECLARE_GPU_STAT (LumenSceneLighting)

	IMPLEMENT_GLOBAL_SHADER (FClearCardUpdateContextCS, "/Engine/Private/Lumen/LumenSceneLighting.usf", "ClearCardUpdateContextCS", SF_Compute)

	IMPLEMENT_GLOBAL_SHADER (FBuildPageUpdatePriorityHistogramCS, "/Engine/Private/Lumen/LumenSceneLighting.usf", "BuildPageUpdatePriorityHistogramCS", SF_Compute)

	IMPLEMENT_GLOBAL_SHADER (FSelectMaxUpdateBucketCS, "/Engine/Private/Lumen/LumenSceneLighting.usf", "SelectMaxUpdateBucketCS", SF_Compute)

	IMPLEMENT_GLOBAL_SHADER (FBuildCardsUpdateListCS, "/Engine/Private/Lumen/LumenSceneLighting.usf", "BuildCardsUpdateListCS", SF_Compute)

	IMPLEMENT_GLOBAL_SHADER (FSetCardPageIndexIndirectArgsCS, "/Engine/Private/Lumen/LumenSceneLighting.usf", "SetCardPageIndexIndirectArgsCS", SF_Compute)

	IMPLEMENT_GLOBAL_SHADER (FLumenSceneLightingStatsCS, "/Engine/Private/Lumen/LumenSceneLightingDebug.usf", "LumenSceneLightingStatsCS", SF_Compute)

Function Documentation

◆ CVarLumenSceneDirectLightingUpdateFactor()

FAutoConsoleVariableRef CVarLumenSceneDirectLightingUpdateFactor	(	TEXT("r.LumenScene.DirectLighting.UpdateFactor")	,
		GLumenDirectLightingUpdateFactor	,
		TEXT("Controls for how many texels direct lighting will be updated every frame. Texels = SurfaceCacheTexels / Factor.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarLumenSceneLightingFeedback()

FAutoConsoleVariableRef CVarLumenSceneLightingFeedback	(	TEXT("r.LumenScene.Lighting.Feedback")	,
		GLumenSceneLightingFeedback	,
		TEXT("Whether to prioritize surface cache lighting updates based on the feedback.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarLumenSceneLightingStats()

FAutoConsoleVariableRef CVarLumenSceneLightingStats	(	TEXT("r.LumenScene.Lighting.Stats")	,
		GLumenLightingStats	,
		TEXT("GPU print out Lumen lighting update stats.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ CVarLumenSceneRadiosityUpdateFactor()

FAutoConsoleVariableRef CVarLumenSceneRadiosityUpdateFactor	(	TEXT("r.LumenScene.Radiosity.UpdateFactor")	,
		GLumenRadiosityUpdateFactor	,
		TEXT("Controls for how many texels radiosity will be updated every frame. Texels = SurfaceCacheTexels / Factor.")	,
		ECVF_Scalability\|	ECVF_RenderThreadSafe
	)

◆ DECLARE_GPU_STAT()

DECLARE_GPU_STAT ( LumenSceneLighting )

◆ GetLumenLightingStatMode()

uint32 GetLumenLightingStatMode ( )

◆ IMPLEMENT_GLOBAL_SHADER() [1/10]

IMPLEMENT_GLOBAL_SHADER	(	FBuildCardsUpdateListCS	,
		"/Engine/Private/Lumen/LumenSceneLighting.usf"	,
		"BuildCardsUpdateListCS"	,
		SF_Compute
	)

◆ IMPLEMENT_GLOBAL_SHADER() [2/10]

IMPLEMENT_GLOBAL_SHADER	(	FBuildPageUpdatePriorityHistogramCS	,
		"/Engine/Private/Lumen/LumenSceneLighting.usf"	,
		"BuildPageUpdatePriorityHistogramCS"	,
		SF_Compute
	)

◆ IMPLEMENT_GLOBAL_SHADER() [3/10]

IMPLEMENT_GLOBAL_SHADER	(	FClearCardUpdateContextCS	,
		"/Engine/Private/Lumen/LumenSceneLighting.usf"	,
		"ClearCardUpdateContextCS"	,
		SF_Compute
	)

◆ IMPLEMENT_GLOBAL_SHADER() [4/10]

IMPLEMENT_GLOBAL_SHADER	(	FClearLumenCardsPS	,
		"/Engine/Private/Lumen/LumenSceneLighting.usf"	,
		"ClearLumenCardsPS"	,
		SF_Pixel
	)

◆ IMPLEMENT_GLOBAL_SHADER() [5/10]

IMPLEMENT_GLOBAL_SHADER	(	FCopyCardCaptureLightingToAtlasPS	,
		"/Engine/Private/Lumen/LumenSceneLighting.usf"	,
		"CopyCardCaptureLightingToAtlasPS"	,
		SF_Pixel
	)

◆ IMPLEMENT_GLOBAL_SHADER() [6/10]

IMPLEMENT_GLOBAL_SHADER	(	FLumenCardCombineLightingCS	,
		"/Engine/Private/Lumen/LumenSceneLighting.usf"	,
		"CombineLumenSceneLightingCS"	,
		SF_Compute
	)

◆ IMPLEMENT_GLOBAL_SHADER() [7/10]

IMPLEMENT_GLOBAL_SHADER	(	FLumenSceneLightingStatsCS	,
		"/Engine/Private/Lumen/LumenSceneLightingDebug.usf"	,
		"LumenSceneLightingStatsCS"	,
		SF_Compute
	)

◆ IMPLEMENT_GLOBAL_SHADER() [8/10]

IMPLEMENT_GLOBAL_SHADER	(	FRasterizeToCardsVS	,
		"/Engine/Private/Lumen/LumenSceneLighting.usf"	,
		"RasterizeToCardsVS"	,
		SF_Vertex
	)

◆ IMPLEMENT_GLOBAL_SHADER() [9/10]

IMPLEMENT_GLOBAL_SHADER	(	FSelectMaxUpdateBucketCS	,
		"/Engine/Private/Lumen/LumenSceneLighting.usf"	,
		"SelectMaxUpdateBucketCS"	,
		SF_Compute
	)

◆ IMPLEMENT_GLOBAL_SHADER() [10/10]

IMPLEMENT_GLOBAL_SHADER	(	FSetCardPageIndexIndirectArgsCS	,
		"/Engine/Private/Lumen/LumenSceneLighting.usf"	,
		"SetCardPageIndexIndirectArgsCS"	,
		SF_Compute
	)

◆ SetLightingUpdateAtlasSize()

void SetLightingUpdateAtlasSize	(	FIntPoint	PhysicalAtlasSize,
		int32	UpdateFactor,
		FLumenCardUpdateContext &	Context
	)

Variable Documentation

◆ GLumenDirectLightingUpdateFactor

int32 GLumenDirectLightingUpdateFactor = 32

◆ GLumenLightingStats

int32 GLumenLightingStats = 0

◆ GLumenRadiosityUpdateFactor

int32 GLumenRadiosityUpdateFactor = 64

◆ GLumenSceneLightingFeedback

int32 GLumenSceneLightingFeedback = 1

Variables
int32	GLumenSceneLightingFeedback = 1

int32	GLumenDirectLightingUpdateFactor = 32

int32	GLumenRadiosityUpdateFactor = 64

int32	GLumenLightingStats = 0

constexpr uint32	LumenCardUpdateContext::CARD_UPDATE_CONTEXT_MAX = 2

constexpr uint32	LumenCardUpdateContext::PRIORITY_HISTOGRAM_SIZE = 16

constexpr uint32	LumenCardUpdateContext::MAX_UPDATE_BUCKET_STRIDE = 2

constexpr uint32	LumenCardUpdateContext::CARD_PAGE_TILE_ALLOCATOR_STRIDE = 2

Classes

Namespaces

Functions

Variables