PostProcessAmbientOcclusion.h File Reference

#include "ScreenPass.h"
#include "UniformBuffer.h"
#include "RendererInterface.h"
#include "HZB.h"

Go to the source code of this file.

Classes
class	FGTAOContext
class	FSSAOHelper
struct	FSSAOCommonParameters
struct	FGTAOCommonParameters
struct	FGTAOHorizonSearchOutputs
struct	FGTAOTemporalOutputs

Enumerations
enum class	ESSAOType { EPS , ECS , EAsyncCS }
enum class	EGTAOType { EOff , EAsyncCombinedSpatial , EAsyncHorizonSearch , ENonAsync }
enum	EGTAOPass {   EGTAOPass_None = 0x0 , EGTAOPass_HorizonSearch = 0x1 , EGTAOPass_HorizonSearchIntegrate = 0x2 , EGTAOPass_Integrate = 0x4 ,   EGTAOPass_SpatialFilter = 0x8 , EGTAOPass_TemporalFilter = 0x10 , EGTAOPass_Upsample = 0x20 }
enum class	EAOTechnique { SSAO , GTAO }

Functions
FRDGTextureDesc	GetScreenSpaceAOTextureDesc (ERHIFeatureLevel::Type FeatureLevel, FIntPoint Extent)
FRDGTextureRef	CreateScreenSpaceAOTexture (FRDGBuilder &GraphBuilder, ERHIFeatureLevel::Type FeatureLevel, FIntPoint Extent)
FRDGTextureRef	GetScreenSpaceAOFallback (const FRDGSystemTextures &SystemTextures)
FScreenPassTexture	AddAmbientOcclusionSetupPass (FRDGBuilder &GraphBuilder, const FViewInfo &View, const FSSAOCommonParameters &CommonParameters, FScreenPassTexture Input)
FScreenPassTexture	AddAmbientOcclusionStepPass (FRDGBuilder &GraphBuilder, const FViewInfo &View, const FSSAOCommonParameters &CommonParameters, const FScreenPassTexture &Input0, const FScreenPassTexture &Input1, const FScreenPassTexture &Input2)
FScreenPassTexture	AddAmbientOcclusionFinalPass (FRDGBuilder &GraphBuilder, const FViewInfo &View, const FSSAOCommonParameters &CommonParameters, const FScreenPassTexture &Input0, const FScreenPassTexture &Input1, const FScreenPassTexture &Input2, FScreenPassRenderTarget FinalOutput)
FGTAOHorizonSearchOutputs	AddGTAOHorizonSearchPass (FRDGBuilder &GraphBuilder, const FViewInfo &View, const FGTAOCommonParameters &CommonParameters, FScreenPassTexture SceneDepth, FScreenPassRenderTarget HorizonOutput)
FScreenPassTexture	AddGTAOInnerIntegratePass (FRDGBuilder &GraphBuilder, const FViewInfo &View, const FGTAOCommonParameters &CommonParameters, FScreenPassTexture SceneDepth, FScreenPassTexture HorizonsTexture)
FGTAOHorizonSearchOutputs	AddGTAOHorizonSearchIntegratePass (FRDGBuilder &GraphBuilder, const FViewInfo &View, const FGTAOCommonParameters &CommonParameters, FScreenPassTexture SceneDepth)
FGTAOTemporalOutputs	AddGTAOTemporalPass (FRDGBuilder &GraphBuilder, const FViewInfo &View, const FGTAOCommonParameters &CommonParameters, FScreenPassTexture Input, FScreenPassTexture SceneDepth, FScreenPassTexture SceneVelocity, FScreenPassTexture HistoryColor, FScreenPassTextureViewport HistoryViewport)
FScreenPassTexture	AddGTAOSpatialFilter (FRDGBuilder &GraphBuilder, const FViewInfo &View, const FGTAOCommonParameters &CommonParameters, FScreenPassTexture Input, FScreenPassTexture InputDepth, FScreenPassRenderTarget SuggestedOutput=FScreenPassRenderTarget())
FScreenPassTexture	AddGTAOUpsamplePass (FRDGBuilder &GraphBuilder, const FViewInfo &View, FScreenPassTexture Input, FScreenPassTexture SceneDepth, FScreenPassRenderTarget Output)
	END_SHADER_PARAMETER_STRUCT ()
FHZBParameters	GetHZBParametersForAO (FRDGBuilder &GraphBuilder, const FViewInfo &View, FIntPoint InputTextureSize, EAOTechnique AOTechnique)

Enumeration Type Documentation

EAOTechnique

enum class EAOTechnique

strong

Enumerator
SSAO
GTAO

EGTAOPass

enum EGTAOPass

Enumerator
EGTAOPass_None
EGTAOPass_HorizonSearch
EGTAOPass_HorizonSearchIntegrate
EGTAOPass_Integrate
EGTAOPass_SpatialFilter
EGTAOPass_TemporalFilter
EGTAOPass_Upsample

EGTAOType

enum class EGTAOType

strong

Enumerator
EOff
EAsyncCombinedSpatial
EAsyncHorizonSearch
ENonAsync

ESSAOType

enum class ESSAOType

strong

Enumerator
EPS
ECS
EAsyncCS

Function Documentation

AddAmbientOcclusionFinalPass()

FScreenPassTexture AddAmbientOcclusionFinalPass	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	View,
		const FSSAOCommonParameters &	CommonParameters,
		const FScreenPassTexture &	Input0,
		const FScreenPassTexture &	Input1,
		const FScreenPassTexture &	Input2,
		FScreenPassRenderTarget	FinalOutput
	)

AddAmbientOcclusionSetupPass()

FScreenPassTexture AddAmbientOcclusionSetupPass	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	View,
		const FSSAOCommonParameters &	CommonParameters,
		FScreenPassTexture	Input
	)

AddAmbientOcclusionStepPass()

FScreenPassTexture AddAmbientOcclusionStepPass	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	View,
		const FSSAOCommonParameters &	CommonParameters,
		const FScreenPassTexture &	Input0,
		const FScreenPassTexture &	Input1,
		const FScreenPassTexture &	Input2
	)

AddGTAOHorizonSearchIntegratePass()

FGTAOHorizonSearchOutputs AddGTAOHorizonSearchIntegratePass	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	View,
		const FGTAOCommonParameters &	CommonParameters,
		FScreenPassTexture	SceneDepth
	)

AddGTAOHorizonSearchPass()

FGTAOHorizonSearchOutputs AddGTAOHorizonSearchPass	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	View,
		const FGTAOCommonParameters &	CommonParameters,
		FScreenPassTexture	SceneDepth,
		FScreenPassRenderTarget	HorizonOutput
	)

AddGTAOInnerIntegratePass()

FScreenPassTexture AddGTAOInnerIntegratePass	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	View,
		const FGTAOCommonParameters &	CommonParameters,
		FScreenPassTexture	SceneDepth,
		FScreenPassTexture	HorizonsTexture
	)

AddGTAOSpatialFilter()

FScreenPassTexture AddGTAOSpatialFilter	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	View,
		const FGTAOCommonParameters &	CommonParameters,
		FScreenPassTexture	Input,
		FScreenPassTexture	InputDepth,
		FScreenPassRenderTarget	SuggestedOutput = FScreenPassRenderTarget()
	)

AddGTAOTemporalPass()

FGTAOTemporalOutputs AddGTAOTemporalPass	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	View,
		const FGTAOCommonParameters &	CommonParameters,
		FScreenPassTexture	Input,
		FScreenPassTexture	SceneDepth,
		FScreenPassTexture	SceneVelocity,
		FScreenPassTexture	HistoryColor,
		FScreenPassTextureViewport	HistoryViewport
	)

AddGTAOUpsamplePass()

FScreenPassTexture AddGTAOUpsamplePass	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	View,
		FScreenPassTexture	Input,
		FScreenPassTexture	SceneDepth,
		FScreenPassRenderTarget	Output
	)

CreateScreenSpaceAOTexture()

FRDGTextureRef CreateScreenSpaceAOTexture	(	FRDGBuilder &	GraphBuilder,
		ERHIFeatureLevel::Type	FeatureLevel,
		FIntPoint	Extent
	)

END_SHADER_PARAMETER_STRUCT()

END_SHADER_PARAMETER_STRUCT

(

)

GetHZBParametersForAO()

FHZBParameters GetHZBParametersForAO	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	View,
		FIntPoint	InputTextureSize,
		EAOTechnique	AOTechnique
	)

GetScreenSpaceAOFallback()

FRDGTextureRef GetScreenSpaceAOFallback

(

const FRDGSystemTextures &

SystemTextures

)

GetScreenSpaceAOTextureDesc()

FRDGTextureDesc GetScreenSpaceAOTextureDesc	(	ERHIFeatureLevel::Type	FeatureLevel,
		FIntPoint	Extent
	)