DistanceFieldScreenGridLighting.cpp File Reference

#include "CoreMinimal.h"
#include "HAL/IConsoleManager.h"
#include "RHI.h"
#include "ShaderParameters.h"
#include "RendererInterface.h"
#include "RHIStaticStates.h"
#include "GlobalDistanceFieldParameters.h"
#include "Shader.h"
#include "StaticBoundShaderState.h"
#include "ScenePrivate.h"
#include "SceneUtils.h"
#include "PostProcess/SceneRenderTargets.h"
#include "GlobalShader.h"
#include "SceneRenderTargetParameters.h"
#include "DeferredShadingRenderer.h"
#include "PostProcess/PostProcessing.h"
#include "PostProcess/SceneFilterRendering.h"
#include "DistanceFieldLightingShared.h"
#include "DistanceFieldAmbientOcclusion.h"
#include "DistanceFieldLightingPost.h"
#include "GlobalDistanceField.h"
#include "PipelineStateCache.h"
#include "ClearQuad.h"
#include "VisualizeTexture.h"
#include "DataDrivenShaderPlatformInfo.h"

Classes
class	FConeTraceScreenGridObjectOcclusionCS
class	FConeTraceScreenGridGlobalOcclusionCS
class	FCombineConeVisibilityCS

Functions
FIntPoint	GetBufferSizeForConeTracing (const FViewInfo &View)
bool	DistanceFieldAOUseHistory (const FViewInfo &View)
bool	ShouldCompileDFScreenGridLightingShaders (EShaderPlatform ShaderPlatform)
FVector2f	GetJitterOffset (const FViewInfo &View)
	IMPLEMENT_GLOBAL_SHADER (FConeTraceScreenGridObjectOcclusionCS, "/Engine/Private/DistanceFieldScreenGridLighting.usf", "ConeTraceObjectOcclusionCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FConeTraceScreenGridGlobalOcclusionCS, "/Engine/Private/DistanceFieldScreenGridLighting.usf", "ConeTraceGlobalOcclusionCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FCombineConeVisibilityCS, "/Engine/Private/DistanceFieldScreenGridLighting.usf", "CombineConeVisibilityCS", SF_Compute)
void	PostProcessBentNormalAOScreenGrid (FRDGBuilder &GraphBuilder, const FDistanceFieldAOParameters &Parameters, const FViewInfo &View, const FSceneTextures &SceneTextures, FRDGTextureRef VelocityTexture, FRDGTextureRef BentNormalInterpolation, FRDGTextureRef DistanceFieldNormal, FRDGTextureRef &BentNormalOutput)

Variables
int32	GConeTraceDownsampleFactor = 4
FVector2f	JitterOffsets [4]
float	GAOConeHalfAngle
const int32	GConeTraceGlobalDFTileSize = 8
const int32	GCombineConesSizeX = 8

Function Documentation

DistanceFieldAOUseHistory()

bool DistanceFieldAOUseHistory ( const FViewInfo &  View )

extern

GetBufferSizeForConeTracing()

FIntPoint GetBufferSizeForConeTracing

(

const FViewInfo &

View

)

GetJitterOffset()

FVector2f GetJitterOffset

(

const FViewInfo &

View

)

IMPLEMENT_GLOBAL_SHADER() [1/3]

IMPLEMENT_GLOBAL_SHADER	(	FCombineConeVisibilityCS	,
		"/Engine/Private/DistanceFieldScreenGridLighting.usf"	,
		"CombineConeVisibilityCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [2/3]

IMPLEMENT_GLOBAL_SHADER	(	FConeTraceScreenGridGlobalOcclusionCS	,
		"/Engine/Private/DistanceFieldScreenGridLighting.usf"	,
		"ConeTraceGlobalOcclusionCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [3/3]

IMPLEMENT_GLOBAL_SHADER	(	FConeTraceScreenGridObjectOcclusionCS	,
		"/Engine/Private/DistanceFieldScreenGridLighting.usf"	,
		"ConeTraceObjectOcclusionCS"	,
		SF_Compute
	)

PostProcessBentNormalAOScreenGrid()

void PostProcessBentNormalAOScreenGrid	(	FRDGBuilder &	GraphBuilder,
		const FDistanceFieldAOParameters &	Parameters,
		const FViewInfo &	View,
		const FSceneTextures &	SceneTextures,
		FRDGTextureRef	VelocityTexture,
		FRDGTextureRef	BentNormalInterpolation,
		FRDGTextureRef	DistanceFieldNormal,
		FRDGTextureRef &	BentNormalOutput
	)

ShouldCompileDFScreenGridLightingShaders()

bool ShouldCompileDFScreenGridLightingShaders

(

EShaderPlatform

ShaderPlatform

)

Variable Documentation

GAOConeHalfAngle

float GAOConeHalfAngle

extern

GCombineConesSizeX

const int32 GCombineConesSizeX = 8

GConeTraceDownsampleFactor

int32 GConeTraceDownsampleFactor = 4

GConeTraceGlobalDFTileSize

const int32 GConeTraceGlobalDFTileSize = 8

JitterOffsets

FVector2f JitterOffsets[4]

Initial value:

= 
{
    FVector2f(.25f, 0),
    FVector2f(.75f, .25f),
    FVector2f(.5f, .75f),
    FVector2f(0, .5f)
}