#include "LightShaftRendering.h"
#include "DataDrivenShaderPlatformInfo.h"
#include "LightSceneProxy.h"
#include "ScreenPass.h"
#include "PipelineStateCache.h"
#include "PostProcess/SceneRenderTargets.h"
#include "PostProcess/TemporalAA.h"
#include "TranslucentRendering.h"
#include "SceneTextureParameters.h"
#include "ScenePrivate.h"
#include "DeferredShadingRenderer.h"
#include "RenderCore.h"

Classes
class	FDownsampleLightShaftsVertexShader

class	FDownsampleLightShaftsPixelShader

class	FBlurLightShaftsPixelShader

class	FFinishOcclusionPixelShader

class	FApplyLightShaftsPixelShader

Enumerations
enum class	ELightShaftBloomOutput { SceneColor , SeparateTranslucency }

enum class	ELightShaftTechnique { Occlusion , Bloom }

Functions
int32	GetLightShaftDownsampleFactor ()

FVector4f	GetLightScreenPosition (const FViewInfo &View, const FLightSceneProxy &LightSceneProxy)

FMobileLightShaftInfo	GetMobileLightShaftInfo (const FViewInfo &View, const FLightSceneInfo &LightSceneInfo)

ELightShaftBloomOutput	GetLightShaftBloomOutput (const FSceneViewFamily &ViewFamily)

bool	ShouldRenderLightShafts (const FSceneViewFamily &ViewFamily)

bool	ShouldRenderLightShaftsForLight (const FViewInfo &View, const FLightSceneProxy &LightSceneProxy)

FLightShaftPixelShaderParameters	GetLightShaftParameters (const FViewInfo &View, const FLightSceneInfo &LightSceneInfo, const FScreenPassTextureViewport &SceneViewport, const FScreenPassTextureViewport &LightShaftViewport)

	IMPLEMENT_GLOBAL_SHADER (FDownsampleLightShaftsVertexShader, "/Engine/Private/LightShaftShader.usf", "DownsampleLightShaftsVertexMain", SF_Vertex)

	IMPLEMENT_GLOBAL_SHADER (FDownsampleLightShaftsPixelShader, "/Engine/Private/LightShaftShader.usf", "DownsampleLightShaftsPixelMain", SF_Pixel)

	IMPLEMENT_GLOBAL_SHADER (FBlurLightShaftsPixelShader, "/Engine/Private/LightShaftShader.usf", "BlurLightShaftsMain", SF_Pixel)

	IMPLEMENT_GLOBAL_SHADER (FFinishOcclusionPixelShader, "/Engine/Private/LightShaftShader.usf", "FinishOcclusionMain", SF_Pixel)

	IMPLEMENT_GLOBAL_SHADER (FApplyLightShaftsPixelShader, "/Engine/Private/LightShaftShader.usf", "ApplyLightShaftsPixelMain", SF_Pixel)

FScreenPassRenderTarget	CreateLightShaftTexture (FRDGBuilder &GraphBuilder, FScreenPassTextureViewport Viewport, const TCHAR *Name)

FScreenPassTexture	AddDownsamplePass (FRDGBuilder &GraphBuilder, const FViewInfo &View, const FLightShaftPixelShaderParameters &LightShaftParameters, TRDGUniformBufferRef< FSceneTextureUniformParameters > SceneTextures, FScreenPassTextureViewport SceneViewport, FScreenPassTextureViewport OutputViewport, ELightComponentType LightComponentType, ELightShaftTechnique LightShaftTechnique)

FScreenPassTexture	AddTemporalAAPass (FRDGBuilder &GraphBuilder, const FViewInfo &View, const TRDGUniformBufferRef< FSceneTextureUniformParameters > SceneTextures, FTemporalAAHistory *HistoryState, FScreenPassTexture LightShafts)

FScreenPassTexture	AddRadialBlurPass (FRDGBuilder &GraphBuilder, const FViewInfo &View, const FLightShaftPixelShaderParameters &LightShaftParameters, FScreenPassTexture LightShafts)

FScreenPassTexture	AddLightShaftSetupPass (FRDGBuilder &GraphBuilder, const FViewInfo &View, const FLightShaftPixelShaderParameters &LightShaftParameters, TRDGUniformBufferRef< FSceneTextureUniformParameters > SceneTextures, FScreenPassTextureViewport SceneViewport, FScreenPassTextureViewport LightShaftViewport, FTemporalAAHistory *LightShaftTemporalHistory, ELightComponentType LightComponentType, ELightShaftTechnique LightShaftTechnique)

void	AddOcclusionTermPass (FRDGBuilder &GraphBuilder, const FViewInfo &View, const FLightShaftPixelShaderParameters &LightShaftParameters, FScreenPassTexture LightShafts, FScreenPassRenderTarget Output)

void	AddLightShaftBloomPass (FRDGBuilder &GraphBuilder, const FViewInfo &View, const FLightShaftPixelShaderParameters &LightShaftParameters, FScreenPassTexture LightShafts, FScreenPassTextureViewport OutputViewport, FRenderTargetBinding OutputBinding)

Variables
int32	GLightShafts = 1

int32	GLightShaftAllowTAA = 1

int32	GLightShaftDownsampleFactor = 2

int32	GLightShaftRenderAfterDOF = 0

int32	GLightShaftBlurPasses = 3

float	GLightShaftFirstPassDistance = .1f

int32	GLightShaftBlurNumSamples = 12

Enumeration Type Documentation

◆ ELightShaftBloomOutput

enum class ELightShaftBloomOutput

strong

Enumerator
SceneColor
SeparateTranslucency

◆ ELightShaftTechnique

enum class ELightShaftTechnique

strong

Enumerator
Occlusion
Bloom

Function Documentation

◆ AddDownsamplePass()

FScreenPassTexture AddDownsamplePass	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	View,
		const FLightShaftPixelShaderParameters &	LightShaftParameters,
		TRDGUniformBufferRef< FSceneTextureUniformParameters >	SceneTextures,
		FScreenPassTextureViewport	SceneViewport,
		FScreenPassTextureViewport	OutputViewport,
		ELightComponentType	LightComponentType,
		ELightShaftTechnique	LightShaftTechnique
	)

◆ AddLightShaftBloomPass()

void AddLightShaftBloomPass	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	View,
		const FLightShaftPixelShaderParameters &	LightShaftParameters,
		FScreenPassTexture	LightShafts,
		FScreenPassTextureViewport	OutputViewport,
		FRenderTargetBinding	OutputBinding
	)

◆ AddLightShaftSetupPass()

FScreenPassTexture AddLightShaftSetupPass	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	View,
		const FLightShaftPixelShaderParameters &	LightShaftParameters,
		TRDGUniformBufferRef< FSceneTextureUniformParameters >	SceneTextures,
		FScreenPassTextureViewport	SceneViewport,
		FScreenPassTextureViewport	LightShaftViewport,
		FTemporalAAHistory *	LightShaftTemporalHistory,
		ELightComponentType	LightComponentType,
		ELightShaftTechnique	LightShaftTechnique
	)

◆ AddOcclusionTermPass()

void AddOcclusionTermPass	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	View,
		const FLightShaftPixelShaderParameters &	LightShaftParameters,
		FScreenPassTexture	LightShafts,
		FScreenPassRenderTarget	Output
	)

◆ AddRadialBlurPass()

FScreenPassTexture AddRadialBlurPass	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	View,
		const FLightShaftPixelShaderParameters &	LightShaftParameters,
		FScreenPassTexture	LightShafts
	)

◆ AddTemporalAAPass()

FScreenPassTexture AddTemporalAAPass	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	View,
		const TRDGUniformBufferRef< FSceneTextureUniformParameters >	SceneTextures,
		FTemporalAAHistory *	HistoryState,
		FScreenPassTexture	LightShafts
	)

◆ CreateLightShaftTexture()

FScreenPassRenderTarget CreateLightShaftTexture	(	FRDGBuilder &	GraphBuilder,
		FScreenPassTextureViewport	Viewport,
		const TCHAR *	Name
	)

◆ GetLightScreenPosition()

FVector4f GetLightScreenPosition	(	const FViewInfo &	View,
		const FLightSceneProxy &	LightSceneProxy
	)

◆ GetLightShaftBloomOutput()

ELightShaftBloomOutput GetLightShaftBloomOutput ( const FSceneViewFamily & ViewFamily )

◆ GetLightShaftDownsampleFactor()

int32 GetLightShaftDownsampleFactor ( )

◆ GetLightShaftParameters()

FLightShaftPixelShaderParameters GetLightShaftParameters	(	const FViewInfo &	View,
		const FLightSceneInfo &	LightSceneInfo,
		const FScreenPassTextureViewport &	SceneViewport,
		const FScreenPassTextureViewport &	LightShaftViewport
	)

◆ GetMobileLightShaftInfo()

FMobileLightShaftInfo GetMobileLightShaftInfo	(	const FViewInfo &	View,
		const FLightSceneInfo &	LightSceneInfo
	)

◆ IMPLEMENT_GLOBAL_SHADER() [1/5]

IMPLEMENT_GLOBAL_SHADER	(	FApplyLightShaftsPixelShader	,
		"/Engine/Private/LightShaftShader.usf"	,
		"ApplyLightShaftsPixelMain"	,
		SF_Pixel
	)

◆ IMPLEMENT_GLOBAL_SHADER() [2/5]

IMPLEMENT_GLOBAL_SHADER	(	FBlurLightShaftsPixelShader	,
		"/Engine/Private/LightShaftShader.usf"	,
		"BlurLightShaftsMain"	,
		SF_Pixel
	)

◆ IMPLEMENT_GLOBAL_SHADER() [3/5]

IMPLEMENT_GLOBAL_SHADER	(	FDownsampleLightShaftsPixelShader	,
		"/Engine/Private/LightShaftShader.usf"	,
		"DownsampleLightShaftsPixelMain"	,
		SF_Pixel
	)

◆ IMPLEMENT_GLOBAL_SHADER() [4/5]

IMPLEMENT_GLOBAL_SHADER	(	FDownsampleLightShaftsVertexShader	,
		"/Engine/Private/LightShaftShader.usf"	,
		"DownsampleLightShaftsVertexMain"	,
		SF_Vertex
	)

◆ IMPLEMENT_GLOBAL_SHADER() [5/5]

IMPLEMENT_GLOBAL_SHADER	(	FFinishOcclusionPixelShader	,
		"/Engine/Private/LightShaftShader.usf"	,
		"FinishOcclusionMain"	,
		SF_Pixel
	)

◆ ShouldRenderLightShafts()

bool ShouldRenderLightShafts ( const FSceneViewFamily & ViewFamily )

◆ ShouldRenderLightShaftsForLight()

bool ShouldRenderLightShaftsForLight	(	const FViewInfo &	View,
		const FLightSceneProxy &	LightSceneProxy
	)

Variable Documentation

◆ GLightShaftAllowTAA

int32 GLightShaftAllowTAA = 1

◆ GLightShaftBlurNumSamples

int32 GLightShaftBlurNumSamples = 12

◆ GLightShaftBlurPasses

int32 GLightShaftBlurPasses = 3

◆ GLightShaftDownsampleFactor

int32 GLightShaftDownsampleFactor = 2

◆ GLightShaftFirstPassDistance

float GLightShaftFirstPassDistance = .1f

◆ GLightShaftRenderAfterDOF

int32 GLightShaftRenderAfterDOF = 0

◆ GLightShafts

int32 GLightShafts = 1

Classes

Enumerations

Functions

Variables