#include "CoreMinimal.h"
#include "RendererInterface.h"
#include "RenderGraphResources.h"
#include "GlobalShader.h"
#include "ShaderParameterStruct.h"
#include "ScreenPass.h"
#include "SceneRendering.h"

Classes
struct	FSubsurfaceTiles

class	FSubsurfaceTilePassVS

class	FSubsurfaceTileFallbackScreenPassVS

Functions
FORCEINLINE uint32	ToIndex (FSubsurfaceTiles::ETileType Type)

const TCHAR *	ToString (FSubsurfaceTiles::ETileType Type)

FSubsurfaceTilePassVS::FParameters	GetSubsurfaceTileParameters (const FScreenPassTextureViewport &TileViewport, const FSubsurfaceTiles &InTile, FSubsurfaceTiles::ETileType TileType)

template<typename FSubsurfacePassPS , typename FSubsurfacePassVS >
void	AddSubsurfaceTiledScreenPass (FRDGBuilder &GraphBuilder, FRDGEventName &&Name, const FViewInfo &View, typename FSubsurfacePassPS::FParameters PassParameters, TShaderMapRef< FSubsurfacePassVS > &VertexShader, TShaderMapRef< FSubsurfacePassPS > &PixelShader, FRHIBlendState BlendState, FRHIDepthStencilState *DepthStencilState, const FScreenPassTextureViewport SceneViewport, FSubsurfaceTiles::ETileType TileType, const bool bShouldFallbackToFullScreenPass=false)

void	AddConditionalClearBlackUAVPass (FRDGBuilder &GraphBuilder, FRDGEventName &&PassName, FRDGTextureRef Texture, const FScreenPassTextureViewport &ScreenPassViewport, FRDGBufferRef ConditionBuffer, uint32 Offset)

FSubsurfaceTiles	ClassifySSSTiles (FRDGBuilder &GraphBuilder, const FViewInfo &View, const FSceneTextures &SceneTextures, const FScreenPassTextureViewportParameters SceneViewportParameters, const FScreenPassTextureViewportParameters SubsurfaceViewportParameters, const bool IsHalfRes)

Function Documentation

◆ AddConditionalClearBlackUAVPass()

void AddConditionalClearBlackUAVPass	(	FRDGBuilder &	GraphBuilder,
		FRDGEventName &&	PassName,
		FRDGTextureRef	Texture,
		const FScreenPassTextureViewport &	ScreenPassViewport,
		FRDGBufferRef	ConditionBuffer,
		uint32	Offset
	)

Clear the UAV texture to black only when ConditionBuffer[Offset] > 0

◆ AddSubsurfaceTiledScreenPass()

template<typename FSubsurfacePassPS , typename FSubsurfacePassVS >

void AddSubsurfaceTiledScreenPass	(	FRDGBuilder &	GraphBuilder,
		FRDGEventName &&	Name,
		const FViewInfo &	View,
		typename FSubsurfacePassPS::FParameters *	PassParameters,
		TShaderMapRef< FSubsurfacePassVS > &	VertexShader,
		TShaderMapRef< FSubsurfacePassPS > &	PixelShader,
		FRHIBlendState *	BlendState,
		FRHIDepthStencilState *	DepthStencilState,
		const FScreenPassTextureViewport	SceneViewport,
		FSubsurfaceTiles::ETileType	TileType,
		const bool	bShouldFallbackToFullScreenPass = `false`
	)

◆ ClassifySSSTiles()

FSubsurfaceTiles ClassifySSSTiles	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	View,
		const FSceneTextures &	SceneTextures,
		const FScreenPassTextureViewportParameters	SceneViewportParameters,
		const FScreenPassTextureViewportParameters	SubsurfaceViewportParameters,
		const bool	IsHalfRes
	)

Code adapted from ScreenSpaceReflectionTiles to reduce Setup SSS cost. Build lists of 8x8 tiles used by SSS pixels Mark and build list steps are separated in order to build a more coherent list (z-ordered over a larger region), which is important for the performance of future passes due to neighbor diffusion.

◆ GetSubsurfaceTileParameters()

FSubsurfaceTilePassVS::FParameters GetSubsurfaceTileParameters	(	const FScreenPassTextureViewport &	TileViewport,
		const FSubsurfaceTiles &	InTile,
		FSubsurfaceTiles::ETileType	TileType
	)

◆ ToIndex()

FORCEINLINE uint32 ToIndex ( FSubsurfaceTiles::ETileType Type )

◆ ToString()

const TCHAR * ToString ( FSubsurfaceTiles::ETileType Type )

Classes