#include "Engine/SubsurfaceProfile.h"
#include "DataDrivenShaderPlatformInfo.h"
#include "Math/Float16.h"
#include "Rendering/BurleyNormalizedSSS.h"
#include "EngineModule.h"
#include "RenderTargetPool.h"
#include "PixelShaderUtils.h"
#include "RenderingThread.h"
#include "UObject/FortniteMainBranchObjectVersion.h"

Classes
class	FSSProfilePreIntegratedPS

Namespaces
namespace	SubsurfaceProfile

Macros
#define	SSSS_TINT_SCALE_OFFSET 0

#define	BSSS_SURFACEALBEDO_OFFSET (SSSS_TINT_SCALE_OFFSET+1)

#define	BSSS_DMFP_OFFSET (BSSS_SURFACEALBEDO_OFFSET+1)

#define	SSSS_TRANSMISSION_OFFSET (BSSS_DMFP_OFFSET+1)

#define	SSSS_BOUNDARY_COLOR_BLEED_OFFSET (SSSS_TRANSMISSION_OFFSET+1)

#define	SSSS_DUAL_SPECULAR_OFFSET (SSSS_BOUNDARY_COLOR_BLEED_OFFSET+1)

#define	SSSS_KERNEL0_OFFSET (SSSS_DUAL_SPECULAR_OFFSET+1)

#define	SSSS_KERNEL0_SIZE 13

#define	SSSS_KERNEL1_OFFSET (SSSS_KERNEL0_OFFSET + SSSS_KERNEL0_SIZE)

#define	SSSS_KERNEL1_SIZE 9

#define	SSSS_KERNEL2_OFFSET (SSSS_KERNEL1_OFFSET + SSSS_KERNEL1_SIZE)

#define	SSSS_KERNEL2_SIZE 6

#define	SSSS_KERNEL_TOTAL_SIZE (SSSS_KERNEL0_SIZE + SSSS_KERNEL1_SIZE + SSSS_KERNEL2_SIZE)

#define	BSSS_TRANSMISSION_PROFILE_OFFSET (SSSS_KERNEL0_OFFSET + SSSS_KERNEL_TOTAL_SIZE)

#define	BSSS_TRANSMISSION_PROFILE_SIZE 32

#define	SSSS_MAX_TRANSMISSION_PROFILE_DISTANCE 5.0f

#define	SSSS_MAX_DUAL_SPECULAR_ROUGHNESS 2.0f

#define	SSS_TYPE_BURLEY 0

#define	SSS_TYPE_SSSS 1

#define	ENC_WORLDUNITSCALE_IN_CM_TO_UNIT 0.02f

#define	DEC_UNIT_TO_WORLDUNITSCALE_IN_CM 1/ENC_WORLDUNITSCALE_IN_CM_TO_UNIT

#define	ENC_DIFFUSEMEANFREEPATH_IN_MM_TO_UNIT (0.01f*0.2f)

#define	DEC_UNIT_TO_DIFFUSEMEANFREEPATH_IN_MM 1/ENC_DIFFUSEMEANFREEPATH_IN_MM_TO_UNIT

#define	ENC_EXTINCTIONSCALE_FACTOR 0.01f

#define	DEC_EXTINCTIONSCALE_FACTOR 1/ENC_EXTINCTIONSCALE_FACTOR

Functions
	DEFINE_LOG_CATEGORY_STATIC (LogSubsurfaceProfile, Log, All)

void	ConvertSubsurfaceParametersFromSeparableToBurley (const FSubsurfaceProfileStruct &Settings, FLinearColor &SurfaceAlbedo, FLinearColor &MeanFreePathColor, float &MeanFreePathDistance)

void	UpgradeSeparableToBurley (FSubsurfaceProfileStruct &Settings)

void	UpgradeDiffuseMeanFreePathToMeanFreePath (FSubsurfaceProfileStruct &Settings)

void	UpgradeSubsurfaceProfileParameters (FSubsurfaceProfileStruct &Settings)

	IMPLEMENT_GLOBAL_SHADER (FSSProfilePreIntegratedPS, "/Engine/Private/SSProfilePreIntegratedMobile.usf", "SSProfilePreIntegratedPS", SF_Pixel)

float	EncodeWorldUnitScale (float WorldUnitScale)

float	DecodeWorldUnitScale (float EncodedWorldUnitScale)

FLinearColor	EncodeDiffuseMeanFreePath (FLinearColor DiffuseMeanFreePath)

FLinearColor	DecodeDiffuseMeanFreePath (FLinearColor EncodedDiffuseMeanFreePath)

float	EncodeScatteringDistribution (float ScatteringDistribution)

float	DecodeScatteringDistribution (float ScatteringDistribution)

float	EncodeExtinctionScale (float ExtinctionScale)

float	DecodeExtinctionScale (float ExtinctionScale)

void	SetupSurfaceAlbedoAndDiffuseMeanFreePath (FLinearColor &SurfaceAlbedo, FLinearColor &Dmfp)

float	Sqrt2 (float X)

float	Pow4 (float X)

TCHAR	MiniFontCharFromIndex (uint32 Index)

FName	GetSubsurfaceProfileParameterName ()

FName	CreateSubsurfaceProfileParameterName (const USubsurfaceProfile *InProfile)

float	GetSubsurfaceProfileId (const USubsurfaceProfile *In)

FRHITexture *	GetSubsurfaceProfileTexture ()

FRHITexture *	GetSubsurfaceProfileTextureWithFallback ()

FRHITexture *	GetSSProfilesPreIntegratedTextureWithFallback ()

void	UpdateSubsurfaceProfileTexture (FRDGBuilder &GraphBuilder, EShaderPlatform ShaderPlatform)

ENGINE_API FName	SubsurfaceProfile::GetSubsurfaceProfileParameterName ()

ENGINE_API FName	SubsurfaceProfile::CreateSubsurfaceProfileParameterName (const USubsurfaceProfile *InProfile)

ENGINE_API float	SubsurfaceProfile::GetSubsurfaceProfileId (const USubsurfaceProfile *In)

ENGINE_API FRHITexture *	SubsurfaceProfile::GetSubsurfaceProfileTexture ()

ENGINE_API FRHITexture *	SubsurfaceProfile::GetSubsurfaceProfileTextureWithFallback ()

ENGINE_API FRHITexture *	SubsurfaceProfile::GetSSProfilesPreIntegratedTextureWithFallback ()

ENGINE_API void	SubsurfaceProfile::UpdateSubsurfaceProfileTexture (class FRDGBuilder &GraphBuilder, EShaderPlatform ShaderPlatform)

Variables
ENGINE_API TGlobalResource< FSubsurfaceProfileTexture >	GSubsurfaceProfileTextureObject

const float	Dmfp2MfpMagicNumber = 0.6f

Macro Definition Documentation

◆ BSSS_DMFP_OFFSET

#define BSSS_DMFP_OFFSET (BSSS_SURFACEALBEDO_OFFSET+1)

◆ BSSS_SURFACEALBEDO_OFFSET

#define BSSS_SURFACEALBEDO_OFFSET (SSSS_TINT_SCALE_OFFSET+1)

◆ BSSS_TRANSMISSION_PROFILE_OFFSET

#define BSSS_TRANSMISSION_PROFILE_OFFSET (SSSS_KERNEL0_OFFSET + SSSS_KERNEL_TOTAL_SIZE)

◆ BSSS_TRANSMISSION_PROFILE_SIZE

#define BSSS_TRANSMISSION_PROFILE_SIZE 32

◆ DEC_EXTINCTIONSCALE_FACTOR

#define DEC_EXTINCTIONSCALE_FACTOR 1/ENC_EXTINCTIONSCALE_FACTOR

◆ DEC_UNIT_TO_DIFFUSEMEANFREEPATH_IN_MM

#define DEC_UNIT_TO_DIFFUSEMEANFREEPATH_IN_MM 1/ENC_DIFFUSEMEANFREEPATH_IN_MM_TO_UNIT

◆ DEC_UNIT_TO_WORLDUNITSCALE_IN_CM

#define DEC_UNIT_TO_WORLDUNITSCALE_IN_CM 1/ENC_WORLDUNITSCALE_IN_CM_TO_UNIT

◆ ENC_DIFFUSEMEANFREEPATH_IN_MM_TO_UNIT

#define ENC_DIFFUSEMEANFREEPATH_IN_MM_TO_UNIT (0.01f*0.2f)

◆ ENC_EXTINCTIONSCALE_FACTOR

#define ENC_EXTINCTIONSCALE_FACTOR 0.01f

◆ ENC_WORLDUNITSCALE_IN_CM_TO_UNIT

#define ENC_WORLDUNITSCALE_IN_CM_TO_UNIT 0.02f

◆ SSS_TYPE_BURLEY

#define SSS_TYPE_BURLEY 0

◆ SSS_TYPE_SSSS

#define SSS_TYPE_SSSS 1

◆ SSSS_BOUNDARY_COLOR_BLEED_OFFSET

#define SSSS_BOUNDARY_COLOR_BLEED_OFFSET (SSSS_TRANSMISSION_OFFSET+1)

◆ SSSS_DUAL_SPECULAR_OFFSET

#define SSSS_DUAL_SPECULAR_OFFSET (SSSS_BOUNDARY_COLOR_BLEED_OFFSET+1)

◆ SSSS_KERNEL0_OFFSET

#define SSSS_KERNEL0_OFFSET (SSSS_DUAL_SPECULAR_OFFSET+1)

◆ SSSS_KERNEL0_SIZE

#define SSSS_KERNEL0_SIZE 13

◆ SSSS_KERNEL1_OFFSET

#define SSSS_KERNEL1_OFFSET (SSSS_KERNEL0_OFFSET + SSSS_KERNEL0_SIZE)

◆ SSSS_KERNEL1_SIZE

#define SSSS_KERNEL1_SIZE 9

◆ SSSS_KERNEL2_OFFSET

#define SSSS_KERNEL2_OFFSET (SSSS_KERNEL1_OFFSET + SSSS_KERNEL1_SIZE)

◆ SSSS_KERNEL2_SIZE

#define SSSS_KERNEL2_SIZE 6

◆ SSSS_KERNEL_TOTAL_SIZE

#define SSSS_KERNEL_TOTAL_SIZE (SSSS_KERNEL0_SIZE + SSSS_KERNEL1_SIZE + SSSS_KERNEL2_SIZE)

◆ SSSS_MAX_DUAL_SPECULAR_ROUGHNESS

#define SSSS_MAX_DUAL_SPECULAR_ROUGHNESS 2.0f

◆ SSSS_MAX_TRANSMISSION_PROFILE_DISTANCE

#define SSSS_MAX_TRANSMISSION_PROFILE_DISTANCE 5.0f

◆ SSSS_TINT_SCALE_OFFSET

#define SSSS_TINT_SCALE_OFFSET 0

◆ SSSS_TRANSMISSION_OFFSET

#define SSSS_TRANSMISSION_OFFSET (BSSS_DMFP_OFFSET+1)

Function Documentation

◆ ConvertSubsurfaceParametersFromSeparableToBurley()

void ConvertSubsurfaceParametersFromSeparableToBurley	(	const FSubsurfaceProfileStruct &	Settings,
		FLinearColor &	SurfaceAlbedo,
		FLinearColor &	MeanFreePathColor,
		float &	MeanFreePathDistance
	)

◆ CreateSubsurfaceProfileParameterName()

FName CreateSubsurfaceProfileParameterName ( const USubsurfaceProfile * InProfile )

◆ DecodeDiffuseMeanFreePath()

FLinearColor DecodeDiffuseMeanFreePath ( FLinearColor EncodedDiffuseMeanFreePath )

◆ DecodeExtinctionScale()

float DecodeExtinctionScale ( float ExtinctionScale )

◆ DecodeScatteringDistribution()

float DecodeScatteringDistribution ( float ScatteringDistribution )

◆ DecodeWorldUnitScale()

float DecodeWorldUnitScale ( float EncodedWorldUnitScale )

◆ DEFINE_LOG_CATEGORY_STATIC()

DEFINE_LOG_CATEGORY_STATIC	(	LogSubsurfaceProfile	,
		Log	,
		All
	)

◆ EncodeDiffuseMeanFreePath()

FLinearColor EncodeDiffuseMeanFreePath ( FLinearColor DiffuseMeanFreePath )

◆ EncodeExtinctionScale()

float EncodeExtinctionScale ( float ExtinctionScale )

◆ EncodeScatteringDistribution()

float EncodeScatteringDistribution ( float ScatteringDistribution )

◆ EncodeWorldUnitScale()

float EncodeWorldUnitScale ( float WorldUnitScale )

◆ GetSSProfilesPreIntegratedTextureWithFallback()

FRHITexture * GetSSProfilesPreIntegratedTextureWithFallback ( )

◆ GetSubsurfaceProfileId()

float GetSubsurfaceProfileId ( const USubsurfaceProfile * In )

◆ GetSubsurfaceProfileParameterName()

FName GetSubsurfaceProfileParameterName ( )

◆ GetSubsurfaceProfileTexture()

FRHITexture * GetSubsurfaceProfileTexture ( )

◆ GetSubsurfaceProfileTextureWithFallback()

FRHITexture * GetSubsurfaceProfileTextureWithFallback ( )

◆ IMPLEMENT_GLOBAL_SHADER()

IMPLEMENT_GLOBAL_SHADER	(	FSSProfilePreIntegratedPS	,
		"/Engine/Private/SSProfilePreIntegratedMobile.usf"	,
		"SSProfilePreIntegratedPS"	,
		SF_Pixel
	)

◆ MiniFontCharFromIndex()

TCHAR MiniFontCharFromIndex ( uint32 Index )

◆ Pow4()

float Pow4 ( float X )

◆ SetupSurfaceAlbedoAndDiffuseMeanFreePath()

void SetupSurfaceAlbedoAndDiffuseMeanFreePath	(	FLinearColor &	SurfaceAlbedo,
		FLinearColor &	Dmfp
	)

◆ Sqrt2()

float Sqrt2 ( float X )

◆ UpdateSubsurfaceProfileTexture()

void UpdateSubsurfaceProfileTexture	(	FRDGBuilder &	GraphBuilder,
		EShaderPlatform	ShaderPlatform
	)

◆ UpgradeDiffuseMeanFreePathToMeanFreePath()

void UpgradeDiffuseMeanFreePathToMeanFreePath ( FSubsurfaceProfileStruct & Settings )

◆ UpgradeSeparableToBurley()

void UpgradeSeparableToBurley ( FSubsurfaceProfileStruct & Settings )

◆ UpgradeSubsurfaceProfileParameters()

void UpgradeSubsurfaceProfileParameters ( FSubsurfaceProfileStruct & Settings )

Variable Documentation

◆ Dmfp2MfpMagicNumber

const float Dmfp2MfpMagicNumber = 0.6f

◆ GSubsurfaceProfileTextureObject

ENGINE_API TGlobalResource<FSubsurfaceProfileTexture> GSubsurfaceProfileTextureObject

Classes

Namespaces

Macros

Functions

Variables