HairStrandsVisibility.cpp File Reference

#include "HairStrandsVisibility.h"
#include "HairStrandsMacroGroup.h"
#include "HairStrandsUtils.h"
#include "HairStrandsInterface.h"
#include "HairStrandsLUT.h"
#include "HairStrandsTile.h"
#include "HairStrandsForwardRaster.h"
#include "DataDrivenShaderPlatformInfo.h"
#include "Shader.h"
#include "GlobalShader.h"
#include "ShaderParameters.h"
#include "ShaderParameterStruct.h"
#include "SceneTextureParameters.h"
#include "RenderGraphUtils.h"
#include "PostProcess/PostProcessing.h"
#include "PostProcess/SceneFilterRendering.h"
#include "MeshPassProcessor.inl"
#include "ScenePrivate.h"
#include "SceneTextureReductions.h"
#include "PixelShaderUtils.h"
#include "PrimitiveDrawingUtils.h"
#include "SimpleMeshDrawCommandPass.h"

Classes
struct	HairStrandsVisibilityInternal::NodeData
struct	HairStrandsVisibilityInternal::NodeVis
struct	FRasterComputeOutput
class	FHairLightSampleClearVS
class	FHairLightSampleClearPS
class	FHairMaterialVS
class	FHairMaterialShaderElementData
class	FHairMaterialPS
class	FHairMaterialProcessor
class	FUpdateSampleCoverageCS
struct	FMaterialPassOutput
class	FHairAttributeDebugCS
class	FHairVelocityCS
struct	FPackedHairVisPPLL
class	FHairVisibilityVS< RenderMode, bCullingEnable >
class	FHairVisibilityShaderElementData
class	FHairVisibilityPS< RenderMode >
class	FHairVisibilityProcessor
class	FClearUIntGraphicPS
class	FCopyIndirectBufferCS
class	FHairVisibilityControlPointIdCompactionCS
class	FHairVisibilityCompactionComputeRasterCS
class	FHairVisibilityFillOpaqueDepthPS
struct	FHairPrimaryTransmittance
class	FHairViewTransmittanceDepthPS
class	FHairVisibilityDepthPS
class	FHairCountToCoverageCS
class	FVisiblityRasterComputePrepareDepthGridCS
class	FVisiblityRasterClassificationCS
class	FVisiblityRasterComputeBinningCS
class	FVisiblityRasterComputeCompactionCS
class	FVisiblityRasterComputeRasterizeCS
class	FVisiblityRasterComputeRasterizeMultiSampleCS
class	FVisiblityRasterComputeDebugCS
class	FVisiblityRasterHWVS
class	FVisiblityRasterHWPS
class	FVisiblityRasterComputeNaiveCS
class	FHairStrandsEmitSelectionPS
class	FHairStrandsEmitHitProxyIdPS
class	FHairStrandsPositionChangedCS

Namespaces
namespace	HairStrandsVisibilityInternal
namespace	HairStrands

Macros
#define	HAIR_MATERIAL_DEBUG_OUTPUT   0

Typedefs
typedef FHairVisibilityVS< HairVisibilityRenderMode_MSAA_Visibility, false >	THairVisiblityVS_MSAAVisibility_NoCulling
typedef FHairVisibilityVS< HairVisibilityRenderMode_MSAA_Visibility, true >	THairVisiblityVS_MSAAVisibility_Culling
typedef FHairVisibilityVS< HairVisibilityRenderMode_Transmittance, true >	THairVisiblityVS_Transmittance
typedef FHairVisibilityVS< HairVisibilityRenderMode_TransmittanceAndHairCount, true >	THairVisiblityVS_TransmittanceAndHairCount
typedef FHairVisibilityVS< HairVisibilityRenderMode_PPLL, true >	THairVisiblityVS_PPLL

Enumerations
enum	EHairVisibilityRenderMode {   HairVisibilityRenderMode_Transmittance , HairVisibilityRenderMode_PPLL , HairVisibilityRenderMode_MSAA_Visibility , HairVisibilityRenderMode_TransmittanceAndHairCount ,   HairVisibilityRenderMode_ComputeRaster , HairVisibilityRenderMode_ComputeRasterForward , HairVisibilityRenderModeCount }
enum class	EHairMaterialPassFilter : uint8 { All , EmissiveOnly , NonEmissiveOnly }
enum class	EHairAuxilaryPassType {   MaterialData , MaterialData_LightChannelMask , LightChannelMask , DepthPatch ,   DepthClear }

Functions
	DECLARE_GPU_STAT (HairStrandsVisibility)
bool	IsHairVisibilityComputeRasterEnabled ()
bool	IsHairVisibilityComputeRasterForwardEnabled (EShaderPlatform InPlatform)
EHairVisibilityRenderMode	GetHairVisibilityRenderMode (EShaderPlatform InPlatform)
bool	IsMsaaEnabled (EShaderPlatform InPlatform)
uint32	GetMeanSamplePerPixel (EShaderPlatform InPlatform)
uint32	GetHairStrandsMeanSamplePerPixel (EShaderPlatform InPlatform)
void	SetUpViewHairRenderInfo (const FViewInfo &ViewInfo, bool bEnableMSAA, FVector4f &OutHairRenderInfo, uint32 &OutHairRenderInfoBits, uint32 &OutHairComponents)
void	SetUpViewHairRenderInfo (const FViewInfo &ViewInfo, FVector4f &OutHairRenderInfo, uint32 &OutHairRenderInfoBits, uint32 &OutHairComponents)
float	GetHairWriteVelocityCoverageThreshold ()
float	GetHairStrandsFullCoverageThreshold ()
uint32	GetHairStrandsIntCoverageThreshold ()
	IMPLEMENT_GLOBAL_SHADER (FHairLightSampleClearVS, "/Engine/Private/HairStrands/HairStrandsLightSample.usf", "MainVS", SF_Vertex)
	IMPLEMENT_GLOBAL_SHADER (FHairLightSampleClearPS, "/Engine/Private/HairStrands/HairStrandsLightSample.usf", "ClearPS", SF_Pixel)
	IMPLEMENT_MATERIAL_SHADER_TYPE (, FHairMaterialVS, TEXT("/Engine/Private/HairStrands/HairStrandsMaterialVS.usf"), TEXT("Main"), SF_Vertex)
	IMPLEMENT_MATERIAL_SHADER_TYPE (, FHairMaterialPS, TEXT("/Engine/Private/HairStrands/HairStrandsMaterialPS.usf"), TEXT("Main"), SF_Pixel)
IPSOCollector *	CreatePSOCollectorHairMaterial (ERHIFeatureLevel::Type FeatureLevel)
	IMPLEMENT_STATIC_UNIFORM_BUFFER_STRUCT (FVisibilityMaterialPassUniformParameters, "MaterialPassParameters", SceneTextures)
	IMPLEMENT_GLOBAL_SHADER (FUpdateSampleCoverageCS, "/Engine/Private/HairStrands/HairStrandsVisibilityComputeSampleCoverage.usf", "MainCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FHairAttributeDebugCS, "/Engine/Private/HairStrands/HairStrandsDebug.usf", "CSMain", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FHairVelocityCS, "/Engine/Private/HairStrands/HairStrandsVelocity.usf", "MainCS", SF_Compute)
float	GetHairFastResolveVelocityThreshold (const FIntPoint &Resolution)
	IMPLEMENT_STATIC_UNIFORM_BUFFER_STRUCT (FVisibilityPassUniformParameters, "HairVisibilityPass", SceneTextures)
TRDGUniformBufferRef< FVisibilityPassUniformParameters >	CreatePassDummyTextures (FRDGBuilder &GraphBuilder)
	IMPLEMENT_MATERIAL_SHADER_TYPE (template<>, THairVisiblityVS_MSAAVisibility_NoCulling, TEXT("/Engine/Private/HairStrands/HairStrandsVisibilityVS.usf"), TEXT("Main"), SF_Vertex)
	IMPLEMENT_MATERIAL_SHADER_TYPE (template<>, THairVisiblityVS_MSAAVisibility_Culling, TEXT("/Engine/Private/HairStrands/HairStrandsVisibilityVS.usf"), TEXT("Main"), SF_Vertex)
	IMPLEMENT_MATERIAL_SHADER_TYPE (template<>, THairVisiblityVS_Transmittance, TEXT("/Engine/Private/HairStrands/HairStrandsVisibilityVS.usf"), TEXT("Main"), SF_Vertex)
	IMPLEMENT_MATERIAL_SHADER_TYPE (template<>, THairVisiblityVS_TransmittanceAndHairCount, TEXT("/Engine/Private/HairStrands/HairStrandsVisibilityVS.usf"), TEXT("Main"), SF_Vertex)
	IMPLEMENT_MATERIAL_SHADER_TYPE (template<>, THairVisiblityVS_PPLL, TEXT("/Engine/Private/HairStrands/HairStrandsVisibilityVS.usf"), TEXT("Main"), SF_Vertex)
	IMPLEMENT_MATERIAL_SHADER_TYPE (template<>, FHairVisibilityPS< HairVisibilityRenderMode_MSAA_Visibility >, TEXT("/Engine/Private/HairStrands/HairStrandsVisibilityPS.usf"), TEXT("MainVisibility"), SF_Pixel)
	IMPLEMENT_MATERIAL_SHADER_TYPE (template<>, FHairVisibilityPS< HairVisibilityRenderMode_Transmittance >, TEXT("/Engine/Private/HairStrands/HairStrandsVisibilityPS.usf"), TEXT("MainVisibility"), SF_Pixel)
	IMPLEMENT_MATERIAL_SHADER_TYPE (template<>, FHairVisibilityPS< HairVisibilityRenderMode_TransmittanceAndHairCount >, TEXT("/Engine/Private/HairStrands/HairStrandsVisibilityPS.usf"), TEXT("MainVisibility"), SF_Pixel)
	IMPLEMENT_MATERIAL_SHADER_TYPE (template<>, FHairVisibilityPS< HairVisibilityRenderMode_PPLL >, TEXT("/Engine/Private/HairStrands/HairStrandsVisibilityPS.usf"), TEXT("MainVisibility"), SF_Pixel)
IPSOCollector *	CreatePSOCollectorHairVisibility (ERHIFeatureLevel::Type FeatureLevel)
	IMPLEMENT_GLOBAL_SHADER (FClearUIntGraphicPS, "/Engine/Private/HairStrands/HairStrandsVisibilityClearPS.usf", "ClearPS", SF_Pixel)
	IMPLEMENT_GLOBAL_SHADER (FCopyIndirectBufferCS, "/Engine/Private/HairStrands/HairStrandsVisibilityCopyIndirectArg.usf", "CopyCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FHairVisibilityControlPointIdCompactionCS, "/Engine/Private/HairStrands/HairStrandsVisibilityCompaction.usf", "MainCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FHairVisibilityCompactionComputeRasterCS, "/Engine/Private/HairStrands/HairStrandsVisibilityCompactionComputeRaster.usf", "MainCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FHairVisibilityFillOpaqueDepthPS, "/Engine/Private/HairStrands/HairStrandsVisibilityFillOpaqueDepthPS.usf", "MainPS", SF_Pixel)
	IMPLEMENT_GLOBAL_SHADER (FHairViewTransmittanceDepthPS, "/Engine/Private/HairStrands/HairStrandsVisibilityTransmittanceDepthPS.usf", "MainPS", SF_Pixel)
	IMPLEMENT_GLOBAL_SHADER (FHairVisibilityDepthPS, "/Engine/Private/HairStrands/HairStrandsVisibilityDepthPS.usf", "MainPS", SF_Pixel)
	IMPLEMENT_GLOBAL_SHADER (FHairCountToCoverageCS, "/Engine/Private/HairStrands/HairStrandsCoverage.usf", "MainCS", SF_Compute)
void	AddMeshDrawTransitionPass (FRDGBuilder &GraphBuilder, const FViewInfo &ViewInfo, const FHairStrandsMacroGroupDatas &MacroGroupDatas)
	IMPLEMENT_GLOBAL_SHADER (FVisiblityRasterComputePrepareDepthGridCS, "/Engine/Private/HairStrands/HairStrandsVisibilityRasterCompute.usf", "PrepareDepthGridCS", SF_Compute)
void	GetHairStrandsInstanceCommon (FRDGBuilder &GraphBuilder, const FViewInfo &ViewInfo, const FHairGroupPublicData *HairGroupPublicData, FHairStrandsInstanceCommonParameters &OutCommon)
void	GetHairStrandsInstanceResources (FRDGBuilder &GraphBuilder, const FViewInfo &ViewInfo, const FHairGroupPublicData *HairGroupPublicData, bool bForceRegister, FHairStrandsInstanceResourceParameters &OutResources)
void	GetHairStrandsInstanceCulling (FRDGBuilder &GraphBuilder, const FViewInfo &ViewInfo, const FHairGroupPublicData *HairGroupPublicData, bool bCullingEnable, FHairStrandsInstanceCullingParameters &OutCulling)
FHairStrandsInstanceParameters	GetHairStrandsInstanceParameters (FRDGBuilder &GraphBuilder, const FViewInfo &ViewInfo, const FHairGroupPublicData *HairGroupPublicData, bool bCullingEnable, bool bForceRegister)
	IMPLEMENT_GLOBAL_SHADER (FVisiblityRasterClassificationCS, "/Engine/Private/HairStrands/HairStrandsVisibilityRasterClassification.usf", "CSMain", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FVisiblityRasterComputeBinningCS, "/Engine/Private/HairStrands/HairStrandsVisibilityRasterCompute.usf", "BinningCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FVisiblityRasterComputeCompactionCS, "/Engine/Private/HairStrands/HairStrandsVisibilityRasterCompute.usf", "CompactionCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FVisiblityRasterComputeRasterizeCS, "/Engine/Private/HairStrands/HairStrandsVisibilityRasterCompute.usf", "RasterCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FVisiblityRasterComputeRasterizeMultiSampleCS, "/Engine/Private/HairStrands/HairStrandsVisibilityRasterCompute.usf", "RasterMultiSampleCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FVisiblityRasterComputeDebugCS, "/Engine/Private/HairStrands/HairStrandsVisibilityRasterCompute.usf", "MainCS", SF_Compute)
	IMPLEMENT_GLOBAL_SHADER (FVisiblityRasterHWVS, "/Engine/Private/HairStrands/HairStrandsVisibilityRasterHW.usf", "VSMain", SF_Vertex)
	IMPLEMENT_GLOBAL_SHADER (FVisiblityRasterHWPS, "/Engine/Private/HairStrands/HairStrandsVisibilityRasterHW.usf", "PSMain", SF_Pixel)
	IMPLEMENT_GLOBAL_SHADER (FVisiblityRasterComputeNaiveCS, "/Engine/Private/HairStrands/HairStrandsVisibilityRasterComputeNaive.usf", "CSMain", SF_Compute)
bool	IsHairStrandContinuousDecimationReorderingEnabled ()
	IMPLEMENT_GLOBAL_SHADER (FHairStrandsEmitSelectionPS, "/Engine/Private/HairStrands/HairStrandsHitProxy.usf", "EmitPS", SF_Pixel)
void	AddHairStrandsSelectionOutlinePass (FRDGBuilder &GraphBuilder, const FViewInfo &View, const FIntRect &ViewportRect, const FHairStrandsMacroGroupDatas &MacroGroupDatas, FHairStrandsTiles TileData, FRDGTextureRef VisNodeIndex, FRDGBufferRef VisNodeData, FRDGTextureRef CoverageTexture, FRDGTextureRef HairOnlyDepthTexture, FRDGTextureRef SelectionDepthTexture)
	IMPLEMENT_GLOBAL_SHADER (FHairStrandsEmitHitProxyIdPS, "/Engine/Private/HairStrands/HairStrandsHitProxy.usf", "EmitPS", SF_Pixel)
void	AddHairStrandsHitProxyIdPass (FRDGBuilder &GraphBuilder, const FScene &Scene, const FViewInfo &View, const FHairStrandsMacroGroupDatas &MacroGroupDatas, FHairStrandsTiles TileData, FRDGTextureRef VisNodeIndex, FRDGBufferRef VisNodeData, FRDGTextureRef CoverageTexture, FRDGTextureRef HitProxyTexture, FRDGTextureRef HitProxyDepthTexture)
	IMPLEMENT_GLOBAL_SHADER (FHairStrandsPositionChangedCS, "/Engine/Private/HairStrands/HairStrandsRaytracingGeometry.usf", "MainCS", SF_Compute)
void	HairStrands::DrawEditorSelection (FRDGBuilder &GraphBuilder, const FViewInfo &View, const FIntRect &ViewportRect, FRDGTextureRef SelectionDepthTexture)
void	HairStrands::DrawHitProxies (FRDGBuilder &GraphBuilder, const FScene &Scene, const FViewInfo &View, FInstanceCullingManager &InstanceCullingManager, FRDGTextureRef HitProxyTexture, FRDGTextureRef HitProxyDepthTexture)
bool	HairStrands::HasPositionsChanged (FRDGBuilder &GraphBuilder, const FScene &Scene, const FViewInfo &View)
bool	GetHairStrandsSkyLightingEnable ()
void	RenderHairStrandsVisibilityBuffer (FRDGBuilder &GraphBuilder, const FScene *Scene, FViewInfo &View, FRDGTextureRef SceneGBufferATexture, FRDGTextureRef SceneGBufferBTexture, FRDGTextureRef SceneGBufferCTexture, FRDGTextureRef SceneGBufferDTexture, FRDGTextureRef SceneGBufferETexture, FRDGTextureRef SceneColorTexture, FRDGTextureRef SceneDepthTexture, FRDGTextureRef SceneVelocityTexture, FInstanceCullingManager &InstanceCullingManager)

Variables
int32	GHairVisibilityComputeRaster_Culling = 0
int32	GHairVisibilityComputeRaster_MaxTiles = 65536
int32	GHairVisibilityComputeRaster_TileSize = 32
int32	GHairVisibility_NumClassifiers = 32
int32	GHairVisibilityComputeRaster_NumBinners = 32
int32	GHairVisibilityComputeRaster_NumRasterizers = 256
int32	GHairVisibilityComputeRaster_NumRasterizersNaive = 256
int32	GHairVisibilityComputeRaster_Debug = 0
FRegisterPSOCollectorCreateFunction RegisterPSOCollectorHairMaterial &	CreatePSOCollectorHairMaterial
FRegisterPSOCollectorCreateFunction RegisterPSOCollectorHairVisibility &	CreatePSOCollectorHairVisibility

Macro Definition Documentation

HAIR_MATERIAL_DEBUG_OUTPUT

#define HAIR_MATERIAL_DEBUG_OUTPUT   0

Typedef Documentation

THairVisiblityVS_MSAAVisibility_Culling

typedef FHairVisibilityVS<HairVisibilityRenderMode_MSAA_Visibility, true > THairVisiblityVS_MSAAVisibility_Culling

THairVisiblityVS_MSAAVisibility_NoCulling

typedef FHairVisibilityVS<HairVisibilityRenderMode_MSAA_Visibility, false > THairVisiblityVS_MSAAVisibility_NoCulling

THairVisiblityVS_PPLL

typedef FHairVisibilityVS<HairVisibilityRenderMode_PPLL, true > THairVisiblityVS_PPLL

THairVisiblityVS_Transmittance

typedef FHairVisibilityVS<HairVisibilityRenderMode_Transmittance, true > THairVisiblityVS_Transmittance

THairVisiblityVS_TransmittanceAndHairCount

typedef FHairVisibilityVS<HairVisibilityRenderMode_TransmittanceAndHairCount, true > THairVisiblityVS_TransmittanceAndHairCount

Enumeration Type Documentation

EHairAuxilaryPassType

enum class EHairAuxilaryPassType

strong

Enumerator
MaterialData
MaterialData_LightChannelMask
LightChannelMask
DepthPatch
DepthClear

EHairMaterialPassFilter

enum class EHairMaterialPassFilter : uint8

strong

Enumerator
All
EmissiveOnly
NonEmissiveOnly

EHairVisibilityRenderMode

enum EHairVisibilityRenderMode

Enumerator
HairVisibilityRenderMode_Transmittance
HairVisibilityRenderMode_PPLL
HairVisibilityRenderMode_MSAA_Visibility
HairVisibilityRenderMode_TransmittanceAndHairCount
HairVisibilityRenderMode_ComputeRaster
HairVisibilityRenderMode_ComputeRasterForward
HairVisibilityRenderModeCount

Function Documentation

AddHairStrandsHitProxyIdPass()

void AddHairStrandsHitProxyIdPass	(	FRDGBuilder &	GraphBuilder,
		const FScene &	Scene,
		const FViewInfo &	View,
		const FHairStrandsMacroGroupDatas &	MacroGroupDatas,
		FHairStrandsTiles	TileData,
		FRDGTextureRef	VisNodeIndex,
		FRDGBufferRef	VisNodeData,
		FRDGTextureRef	CoverageTexture,
		FRDGTextureRef	HitProxyTexture,
		FRDGTextureRef	HitProxyDepthTexture
	)

AddHairStrandsSelectionOutlinePass()

void AddHairStrandsSelectionOutlinePass	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	View,
		const FIntRect &	ViewportRect,
		const FHairStrandsMacroGroupDatas &	MacroGroupDatas,
		FHairStrandsTiles	TileData,
		FRDGTextureRef	VisNodeIndex,
		FRDGBufferRef	VisNodeData,
		FRDGTextureRef	CoverageTexture,
		FRDGTextureRef	HairOnlyDepthTexture,
		FRDGTextureRef	SelectionDepthTexture
	)

AddMeshDrawTransitionPass()

void AddMeshDrawTransitionPass	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	ViewInfo,
		const FHairStrandsMacroGroupDatas &	MacroGroupDatas
	)

CreatePassDummyTextures()

TRDGUniformBufferRef< FVisibilityPassUniformParameters > CreatePassDummyTextures

(

FRDGBuilder &

GraphBuilder

)

CreatePSOCollectorHairMaterial()

IPSOCollector * CreatePSOCollectorHairMaterial

(

ERHIFeatureLevel::Type

FeatureLevel

)

CreatePSOCollectorHairVisibility()

IPSOCollector * CreatePSOCollectorHairVisibility

(

ERHIFeatureLevel::Type

FeatureLevel

)

DECLARE_GPU_STAT()

DECLARE_GPU_STAT

(

HairStrandsVisibility

)

GetHairFastResolveVelocityThreshold()

float GetHairFastResolveVelocityThreshold

(

const FIntPoint &

Resolution

)

GetHairStrandsFullCoverageThreshold()

float GetHairStrandsFullCoverageThreshold

(

)

GetHairStrandsInstanceCommon()

void GetHairStrandsInstanceCommon	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	ViewInfo,
		const FHairGroupPublicData *	HairGroupPublicData,
		FHairStrandsInstanceCommonParameters &	OutCommon
	)

GetHairStrandsInstanceCulling()

void GetHairStrandsInstanceCulling	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	ViewInfo,
		const FHairGroupPublicData *	HairGroupPublicData,
		bool	bCullingEnable,
		FHairStrandsInstanceCullingParameters &	OutCulling
	)

GetHairStrandsInstanceParameters()

FHairStrandsInstanceParameters GetHairStrandsInstanceParameters	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	ViewInfo,
		const FHairGroupPublicData *	HairGroupPublicData,
		bool	bCullingEnable,
		bool	bForceRegister
	)

GetHairStrandsInstanceResources()

void GetHairStrandsInstanceResources	(	FRDGBuilder &	GraphBuilder,
		const FViewInfo &	ViewInfo,
		const FHairGroupPublicData *	HairGroupPublicData,
		bool	bForceRegister,
		FHairStrandsInstanceResourceParameters &	OutResources
	)

GetHairStrandsIntCoverageThreshold()

uint32 GetHairStrandsIntCoverageThreshold

(

)

GetHairStrandsMeanSamplePerPixel()

uint32 GetHairStrandsMeanSamplePerPixel

(

EShaderPlatform

InPlatform

)

GetHairStrandsSkyLightingEnable()

bool GetHairStrandsSkyLightingEnable

(

)

GetHairVisibilityRenderMode()

EHairVisibilityRenderMode GetHairVisibilityRenderMode ( EShaderPlatform  InPlatform )

inline

GetHairWriteVelocityCoverageThreshold()

float GetHairWriteVelocityCoverageThreshold

(

)

GetMeanSamplePerPixel()

uint32 GetMeanSamplePerPixel ( EShaderPlatform  InPlatform )

inline

IMPLEMENT_GLOBAL_SHADER() [1/26]

IMPLEMENT_GLOBAL_SHADER	(	FClearUIntGraphicPS	,
		"/Engine/Private/HairStrands/HairStrandsVisibilityClearPS.usf"	,
		"ClearPS"	,
		SF_Pixel
	)

IMPLEMENT_GLOBAL_SHADER() [2/26]

IMPLEMENT_GLOBAL_SHADER	(	FCopyIndirectBufferCS	,
		"/Engine/Private/HairStrands/HairStrandsVisibilityCopyIndirectArg.usf"	,
		"CopyCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [3/26]

IMPLEMENT_GLOBAL_SHADER	(	FHairAttributeDebugCS	,
		"/Engine/Private/HairStrands/HairStrandsDebug.usf"	,
		"CSMain"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [4/26]

IMPLEMENT_GLOBAL_SHADER	(	FHairCountToCoverageCS	,
		"/Engine/Private/HairStrands/HairStrandsCoverage.usf"	,
		"MainCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [5/26]

IMPLEMENT_GLOBAL_SHADER	(	FHairLightSampleClearPS	,
		"/Engine/Private/HairStrands/HairStrandsLightSample.usf"	,
		"ClearPS"	,
		SF_Pixel
	)

IMPLEMENT_GLOBAL_SHADER() [6/26]

IMPLEMENT_GLOBAL_SHADER	(	FHairLightSampleClearVS	,
		"/Engine/Private/HairStrands/HairStrandsLightSample.usf"	,
		"MainVS"	,
		SF_Vertex
	)

IMPLEMENT_GLOBAL_SHADER() [7/26]

IMPLEMENT_GLOBAL_SHADER	(	FHairStrandsEmitHitProxyIdPS	,
		"/Engine/Private/HairStrands/HairStrandsHitProxy.usf"	,
		"EmitPS"	,
		SF_Pixel
	)

IMPLEMENT_GLOBAL_SHADER() [8/26]

IMPLEMENT_GLOBAL_SHADER	(	FHairStrandsEmitSelectionPS	,
		"/Engine/Private/HairStrands/HairStrandsHitProxy.usf"	,
		"EmitPS"	,
		SF_Pixel
	)

IMPLEMENT_GLOBAL_SHADER() [9/26]

IMPLEMENT_GLOBAL_SHADER	(	FHairStrandsPositionChangedCS	,
		"/Engine/Private/HairStrands/HairStrandsRaytracingGeometry.usf"	,
		"MainCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [10/26]

IMPLEMENT_GLOBAL_SHADER	(	FHairVelocityCS	,
		"/Engine/Private/HairStrands/HairStrandsVelocity.usf"	,
		"MainCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [11/26]

IMPLEMENT_GLOBAL_SHADER	(	FHairViewTransmittanceDepthPS	,
		"/Engine/Private/HairStrands/HairStrandsVisibilityTransmittanceDepthPS.usf"	,
		"MainPS"	,
		SF_Pixel
	)

IMPLEMENT_GLOBAL_SHADER() [12/26]

IMPLEMENT_GLOBAL_SHADER	(	FHairVisibilityCompactionComputeRasterCS	,
		"/Engine/Private/HairStrands/HairStrandsVisibilityCompactionComputeRaster.usf"	,
		"MainCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [13/26]

IMPLEMENT_GLOBAL_SHADER	(	FHairVisibilityControlPointIdCompactionCS	,
		"/Engine/Private/HairStrands/HairStrandsVisibilityCompaction.usf"	,
		"MainCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [14/26]

IMPLEMENT_GLOBAL_SHADER	(	FHairVisibilityDepthPS	,
		"/Engine/Private/HairStrands/HairStrandsVisibilityDepthPS.usf"	,
		"MainPS"	,
		SF_Pixel
	)

IMPLEMENT_GLOBAL_SHADER() [15/26]

IMPLEMENT_GLOBAL_SHADER	(	FHairVisibilityFillOpaqueDepthPS	,
		"/Engine/Private/HairStrands/HairStrandsVisibilityFillOpaqueDepthPS.usf"	,
		"MainPS"	,
		SF_Pixel
	)

IMPLEMENT_GLOBAL_SHADER() [16/26]

IMPLEMENT_GLOBAL_SHADER	(	FUpdateSampleCoverageCS	,
		"/Engine/Private/HairStrands/HairStrandsVisibilityComputeSampleCoverage.usf"	,
		"MainCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [17/26]

IMPLEMENT_GLOBAL_SHADER	(	FVisiblityRasterClassificationCS	,
		"/Engine/Private/HairStrands/HairStrandsVisibilityRasterClassification.usf"	,
		"CSMain"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [18/26]

IMPLEMENT_GLOBAL_SHADER	(	FVisiblityRasterComputeBinningCS	,
		"/Engine/Private/HairStrands/HairStrandsVisibilityRasterCompute.usf"	,
		"BinningCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [19/26]

IMPLEMENT_GLOBAL_SHADER	(	FVisiblityRasterComputeCompactionCS	,
		"/Engine/Private/HairStrands/HairStrandsVisibilityRasterCompute.usf"	,
		"CompactionCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [20/26]

IMPLEMENT_GLOBAL_SHADER	(	FVisiblityRasterComputeDebugCS	,
		"/Engine/Private/HairStrands/HairStrandsVisibilityRasterCompute.usf"	,
		"MainCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [21/26]

IMPLEMENT_GLOBAL_SHADER	(	FVisiblityRasterComputeNaiveCS	,
		"/Engine/Private/HairStrands/HairStrandsVisibilityRasterComputeNaive.usf"	,
		"CSMain"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [22/26]

IMPLEMENT_GLOBAL_SHADER	(	FVisiblityRasterComputePrepareDepthGridCS	,
		"/Engine/Private/HairStrands/HairStrandsVisibilityRasterCompute.usf"	,
		"PrepareDepthGridCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [23/26]

IMPLEMENT_GLOBAL_SHADER	(	FVisiblityRasterComputeRasterizeCS	,
		"/Engine/Private/HairStrands/HairStrandsVisibilityRasterCompute.usf"	,
		"RasterCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [24/26]

IMPLEMENT_GLOBAL_SHADER	(	FVisiblityRasterComputeRasterizeMultiSampleCS	,
		"/Engine/Private/HairStrands/HairStrandsVisibilityRasterCompute.usf"	,
		"RasterMultiSampleCS"	,
		SF_Compute
	)

IMPLEMENT_GLOBAL_SHADER() [25/26]

IMPLEMENT_GLOBAL_SHADER	(	FVisiblityRasterHWPS	,
		"/Engine/Private/HairStrands/HairStrandsVisibilityRasterHW.usf"	,
		"PSMain"	,
		SF_Pixel
	)

IMPLEMENT_GLOBAL_SHADER() [26/26]

IMPLEMENT_GLOBAL_SHADER	(	FVisiblityRasterHWVS	,
		"/Engine/Private/HairStrands/HairStrandsVisibilityRasterHW.usf"	,
		"VSMain"	,
		SF_Vertex
	)

IMPLEMENT_MATERIAL_SHADER_TYPE() [1/11]

IMPLEMENT_MATERIAL_SHADER_TYPE	(	FHairMaterialPS	,
		TEXT("/Engine/Private/HairStrands/HairStrandsMaterialPS.usf")	,
		TEXT("Main")	,
		SF_Pixel
	)

IMPLEMENT_MATERIAL_SHADER_TYPE() [2/11]

IMPLEMENT_MATERIAL_SHADER_TYPE	(	FHairMaterialVS	,
		TEXT("/Engine/Private/HairStrands/HairStrandsMaterialVS.usf")	,
		TEXT("Main")	,
		SF_Vertex
	)

IMPLEMENT_MATERIAL_SHADER_TYPE() [3/11]

IMPLEMENT_MATERIAL_SHADER_TYPE	(	template<>	,
		FHairVisibilityPS< HairVisibilityRenderMode_MSAA_Visibility >	,
		TEXT("/Engine/Private/HairStrands/HairStrandsVisibilityPS.usf")	,
		TEXT("MainVisibility")	,
		SF_Pixel
	)

IMPLEMENT_MATERIAL_SHADER_TYPE() [4/11]

IMPLEMENT_MATERIAL_SHADER_TYPE	(	template<>	,
		FHairVisibilityPS< HairVisibilityRenderMode_PPLL >	,
		TEXT("/Engine/Private/HairStrands/HairStrandsVisibilityPS.usf")	,
		TEXT("MainVisibility")	,
		SF_Pixel
	)

IMPLEMENT_MATERIAL_SHADER_TYPE() [5/11]

IMPLEMENT_MATERIAL_SHADER_TYPE	(	template<>	,
		FHairVisibilityPS< HairVisibilityRenderMode_Transmittance >	,
		TEXT("/Engine/Private/HairStrands/HairStrandsVisibilityPS.usf")	,
		TEXT("MainVisibility")	,
		SF_Pixel
	)

IMPLEMENT_MATERIAL_SHADER_TYPE() [6/11]

IMPLEMENT_MATERIAL_SHADER_TYPE	(	template<>	,
		FHairVisibilityPS< HairVisibilityRenderMode_TransmittanceAndHairCount >	,
		TEXT("/Engine/Private/HairStrands/HairStrandsVisibilityPS.usf")	,
		TEXT("MainVisibility")	,
		SF_Pixel
	)

IMPLEMENT_MATERIAL_SHADER_TYPE() [7/11]

IMPLEMENT_MATERIAL_SHADER_TYPE	(	template<>	,
		THairVisiblityVS_MSAAVisibility_Culling	,
		TEXT("/Engine/Private/HairStrands/HairStrandsVisibilityVS.usf")	,
		TEXT("Main")	,
		SF_Vertex
	)

IMPLEMENT_MATERIAL_SHADER_TYPE() [8/11]

IMPLEMENT_MATERIAL_SHADER_TYPE	(	template<>	,
		THairVisiblityVS_MSAAVisibility_NoCulling	,
		TEXT("/Engine/Private/HairStrands/HairStrandsVisibilityVS.usf")	,
		TEXT("Main")	,
		SF_Vertex
	)

IMPLEMENT_MATERIAL_SHADER_TYPE() [9/11]

IMPLEMENT_MATERIAL_SHADER_TYPE	(	template<>	,
		THairVisiblityVS_PPLL	,
		TEXT("/Engine/Private/HairStrands/HairStrandsVisibilityVS.usf")	,
		TEXT("Main")	,
		SF_Vertex
	)

IMPLEMENT_MATERIAL_SHADER_TYPE() [10/11]

IMPLEMENT_MATERIAL_SHADER_TYPE	(	template<>	,
		THairVisiblityVS_Transmittance	,
		TEXT("/Engine/Private/HairStrands/HairStrandsVisibilityVS.usf")	,
		TEXT("Main")	,
		SF_Vertex
	)

IMPLEMENT_MATERIAL_SHADER_TYPE() [11/11]

IMPLEMENT_MATERIAL_SHADER_TYPE	(	template<>	,
		THairVisiblityVS_TransmittanceAndHairCount	,
		TEXT("/Engine/Private/HairStrands/HairStrandsVisibilityVS.usf")	,
		TEXT("Main")	,
		SF_Vertex
	)

IMPLEMENT_STATIC_UNIFORM_BUFFER_STRUCT() [1/2]

IMPLEMENT_STATIC_UNIFORM_BUFFER_STRUCT	(	FVisibilityMaterialPassUniformParameters	,
		"MaterialPassParameters"	,
		SceneTextures
	)

IMPLEMENT_STATIC_UNIFORM_BUFFER_STRUCT() [2/2]

IMPLEMENT_STATIC_UNIFORM_BUFFER_STRUCT	(	FVisibilityPassUniformParameters	,
		"HairVisibilityPass"	,
		SceneTextures
	)

IsHairStrandContinuousDecimationReorderingEnabled()

bool IsHairStrandContinuousDecimationReorderingEnabled

(

)

IsHairVisibilityComputeRasterEnabled()

bool IsHairVisibilityComputeRasterEnabled

(

)

IsHairVisibilityComputeRasterForwardEnabled()

bool IsHairVisibilityComputeRasterForwardEnabled

(

EShaderPlatform

InPlatform

)

IsMsaaEnabled()

bool IsMsaaEnabled ( EShaderPlatform  InPlatform )

inline

RenderHairStrandsVisibilityBuffer()

void RenderHairStrandsVisibilityBuffer	(	FRDGBuilder &	GraphBuilder,
		const FScene *	Scene,
		FViewInfo &	View,
		FRDGTextureRef	SceneGBufferATexture,
		FRDGTextureRef	SceneGBufferBTexture,
		FRDGTextureRef	SceneGBufferCTexture,
		FRDGTextureRef	SceneGBufferDTexture,
		FRDGTextureRef	SceneGBufferETexture,
		FRDGTextureRef	SceneColorTexture,
		FRDGTextureRef	SceneDepthTexture,
		FRDGTextureRef	SceneVelocityTexture,
		FInstanceCullingManager &	InstanceCullingManager
	)

SetUpViewHairRenderInfo() [1/2]

void SetUpViewHairRenderInfo	(	const FViewInfo &	ViewInfo,
		bool	bEnableMSAA,
		FVector4f &	OutHairRenderInfo,
		uint32 &	OutHairRenderInfoBits,
		uint32 &	OutHairComponents
	)

SetUpViewHairRenderInfo() [2/2]

void SetUpViewHairRenderInfo	(	const FViewInfo &	ViewInfo,
		FVector4f &	OutHairRenderInfo,
		uint32 &	OutHairRenderInfoBits,
		uint32 &	OutHairComponents
	)

Variable Documentation

CreatePSOCollectorHairMaterial

FRegisterPSOCollectorCreateFunction RegisterPSOCollectorHairMaterial& CreatePSOCollectorHairMaterial

CreatePSOCollectorHairVisibility

FRegisterPSOCollectorCreateFunction RegisterPSOCollectorHairVisibility& CreatePSOCollectorHairVisibility

GHairVisibility_NumClassifiers

int32 GHairVisibility_NumClassifiers = 32

GHairVisibilityComputeRaster_Culling

int32 GHairVisibilityComputeRaster_Culling = 0

GHairVisibilityComputeRaster_Debug

int32 GHairVisibilityComputeRaster_Debug = 0

GHairVisibilityComputeRaster_MaxTiles

int32 GHairVisibilityComputeRaster_MaxTiles = 65536

GHairVisibilityComputeRaster_NumBinners

int32 GHairVisibilityComputeRaster_NumBinners = 32

GHairVisibilityComputeRaster_NumRasterizers

int32 GHairVisibilityComputeRaster_NumRasterizers = 256

GHairVisibilityComputeRaster_NumRasterizersNaive

int32 GHairVisibilityComputeRaster_NumRasterizersNaive = 256

GHairVisibilityComputeRaster_TileSize

int32 GHairVisibilityComputeRaster_TileSize = 32