HairStrandsUtils.cpp File Reference

#include "HairStrandsUtils.h"
#include "LightSceneProxy.h"
#include "ScenePrivate.h"
#include "Rendering/SkeletalMeshRenderData.h"
#include "HairStrandsData.h"
#include "SystemTextures.h"

Classes
class	FHairResourceTransitionPass

Enumerations
enum	EHairVisibilityVendor { HairVisibilityVendor_AMD , HairVisibilityVendor_NVIDIA , HairVisibilityVendor_INTEL , HairVisibilityVendorCount }

Functions
float	GetDeepShadowMaxFovAngle ()
float	GetHairDualScatteringRoughnessOverride ()
EHairStrandsCompositionType	GetHairStrandsComposition ()
float	GetDeepShadowAABBScale ()
float	SampleCountToSubPixelSize (uint32 SamplePerPixelCount)
FHairComponent	GetHairComponents ()
uint32	ToBitfield (const FHairComponent &C)
float	GetPrimiartyRasterizationScale ()
float	GetDeepShadowRasterizationScale ()
FMinHairRadiusAtDepth1	ComputeMinStrandRadiusAtDepth1 (const FIntPoint &InResolution, const float FOV, const uint32 SampleCount, const float OverrideStrandHairRasterizationScale, const float OrthoWidth)
void	ComputeTranslatedWorldToLightClip (const FVector &TranslatedWorldOffset, FMatrix &OutTranslatedWorldToClipTransform, FMinHairRadiusAtDepth1 &OutMinStrandRadiusAtDepth1, const FBoxSphereBounds &PrimitivesBounds, const FLightSceneProxy &LightProxy, const ELightComponentType LightType, const FIntPoint &ShadowResolution)
FIntRect	ComputeProjectedScreenRect (const FBox &B, const FViewInfo &View)
FIntRect	ComputeVisibleHairStrandsMacroGroupsRect (const FViewInfo &View, const FIntRect &ViewRect, const FHairStrandsMacroGroupDatas &Datas)
bool	IsHairStrandsViewRectOptimEnable ()
EHairVisibilityVendor	GetVendor ()
uint32	GetVendorOptimalGroupSize1D ()
FIntPoint	GetVendorOptimalGroupSize2D ()
FVector4f	PackHairRenderInfo (float PrimaryRadiusAtDepth1, float StableRadiusAtDepth1, float VelocityRadiusAtDepth1, float VelocityMagnitudeScale)
uint32	PackHairRenderInfoBits (bool bIsOrtho, bool bIsGPUDriven)
	IMPLEMENT_GLOBAL_SHADER (FHairResourceTransitionPass, "/Engine/Private/HairStrands/HairStrandsMesh.usf", "MainCS", SF_Compute)
void	AddTransitionPass (FRDGBuilder &GraphBuilder, FGlobalShaderMap *ShaderMap, EShaderPlatform InPlatform, const TArray< FRDGBufferSRVRef > &Transitions)
FPointPerCurveDispatchInfo	GetPointPerCurveDispatchInfo (uint32 InAssetMaxPointPerCurve, uint32 InAssetCurveCount, uint32 InGroupSize)

Enumeration Type Documentation

EHairVisibilityVendor

enum EHairVisibilityVendor

Enumerator
HairVisibilityVendor_AMD
HairVisibilityVendor_NVIDIA
HairVisibilityVendor_INTEL
HairVisibilityVendorCount

Function Documentation

AddTransitionPass()

void AddTransitionPass	(	FRDGBuilder &	GraphBuilder,
		FGlobalShaderMap *	ShaderMap,
		EShaderPlatform	InPlatform,
		const TArray< FRDGBufferSRVRef > &	Transitions
	)

ComputeMinStrandRadiusAtDepth1()

FMinHairRadiusAtDepth1 ComputeMinStrandRadiusAtDepth1	(	const FIntPoint &	InResolution,
		const float	FOV,
		const uint32	SampleCount,
		const float	OverrideStrandHairRasterizationScale,
		const float	OrthoWidth
	)

ComputeProjectedScreenRect()

FIntRect ComputeProjectedScreenRect	(	const FBox &	B,
		const FViewInfo &	View
	)

ComputeTranslatedWorldToLightClip()

void ComputeTranslatedWorldToLightClip	(	const FVector &	TranslatedWorldOffset,
		FMatrix &	OutTranslatedWorldToClipTransform,
		FMinHairRadiusAtDepth1 &	OutMinStrandRadiusAtDepth1,
		const FBoxSphereBounds &	PrimitivesBounds,
		const FLightSceneProxy &	LightProxy,
		const ELightComponentType	LightType,
		const FIntPoint &	ShadowResolution
	)

ComputeVisibleHairStrandsMacroGroupsRect()

FIntRect ComputeVisibleHairStrandsMacroGroupsRect	(	const FViewInfo &	View,
		const FIntRect &	ViewRect,
		const FHairStrandsMacroGroupDatas &	Datas
	)

GetDeepShadowAABBScale()

float GetDeepShadowAABBScale

(

)

GetDeepShadowMaxFovAngle()

float GetDeepShadowMaxFovAngle

(

)

GetDeepShadowRasterizationScale()

float GetDeepShadowRasterizationScale

(

)

GetHairComponents()

FHairComponent GetHairComponents

(

)

GetHairDualScatteringRoughnessOverride()

float GetHairDualScatteringRoughnessOverride

(

)

GetHairStrandsComposition()

EHairStrandsCompositionType GetHairStrandsComposition

(

)

GetPointPerCurveDispatchInfo()

FPointPerCurveDispatchInfo GetPointPerCurveDispatchInfo	(	uint32	InAssetMaxPointPerCurve,
		uint32	InAssetCurveCount,
		uint32	InGroupSize
	)

GetPrimiartyRasterizationScale()

float GetPrimiartyRasterizationScale

(

)

GetVendor()

EHairVisibilityVendor GetVendor ( )

inline

GetVendorOptimalGroupSize1D()

uint32 GetVendorOptimalGroupSize1D

(

)

GetVendorOptimalGroupSize2D()

FIntPoint GetVendorOptimalGroupSize2D

(

)

IMPLEMENT_GLOBAL_SHADER()

IMPLEMENT_GLOBAL_SHADER	(	FHairResourceTransitionPass	,
		"/Engine/Private/HairStrands/HairStrandsMesh.usf"	,
		"MainCS"	,
		SF_Compute
	)

IsHairStrandsViewRectOptimEnable()

bool IsHairStrandsViewRectOptimEnable

(

)

PackHairRenderInfo()

FVector4f PackHairRenderInfo	(	float	PrimaryRadiusAtDepth1,
		float	StableRadiusAtDepth1,
		float	VelocityRadiusAtDepth1,
		float	VelocityMagnitudeScale
	)

PackHairRenderInfoBits()

uint32 PackHairRenderInfoBits	(	bool	bIsOrtho,
		bool	bIsGPUDriven
	)

SampleCountToSubPixelSize()

float SampleCountToSubPixelSize

(

uint32

SamplePerPixelCount

)

ToBitfield()

uint32 ToBitfield

(

const FHairComponent &

C

)