FVirtualTextureSystem Class Reference

#include <VirtualTextureSystem.h>

Public Member Functions
uint32	GetFrame () const
void	Update (FRDGBuilder &GraphBuilder, ERHIFeatureLevel::Type FeatureLevel, ISceneRenderer *SceneRenderer, const FVirtualTextureUpdateSettings &Settings)
void	CallPendingCallbacks ()
TUniquePtr< FVirtualTextureUpdater >	BeginUpdate (FRDGBuilder &GraphBuilder, ERHIFeatureLevel::Type FeatureLevel, ISceneRenderer *SceneRenderer, const FVirtualTextureUpdateSettings &Settings)
void	WaitForTasks (FVirtualTextureUpdater *Updater)
void	EndUpdate (FRDGBuilder &GraphBuilder, TUniquePtr< FVirtualTextureUpdater > &&Updater, ERHIFeatureLevel::Type FeatureLevel)
void	FinalizeRequests (FRDGBuilder &GraphBuilder, ISceneRenderer *SceneRenderer)
void	ReleasePendingResources ()
IAllocatedVirtualTexture *	AllocateVirtualTexture (FRHICommandListBase &RHICmdList, const FAllocatedVTDescription &Desc)
void	DestroyVirtualTexture (IAllocatedVirtualTexture *AllocatedVT)
FVirtualTextureProducerHandle	RegisterProducer (FRHICommandListBase &RHICmdList, const FVTProducerDescription &InDesc, IVirtualTexture *InProducer)
void	ReleaseProducer (const FVirtualTextureProducerHandle &Handle)
bool	TryReleaseProducer (const FVirtualTextureProducerHandle &Handle)
void	AddProducerDestroyedCallback (const FVirtualTextureProducerHandle &Handle, FVTProducerDestroyedFunction *Function, void *Baton)
uint32	RemoveAllProducerDestroyedCallbacks (const void *Baton)
IAdaptiveVirtualTexture *	AllocateAdaptiveVirtualTexture (FRHICommandListBase &RHICmdList, const FAdaptiveVTDescription &AdaptiveVTDesc, const FAllocatedVTDescription &AllocatedVTDesc)
void	DestroyAdaptiveVirtualTexture (IAdaptiveVirtualTexture *AdaptiveVT)
void	RequestTiles (const FVector2D &InScreenSpaceSize, int32 InMipLevel=-1)
void	RequestTiles (const FMaterialRenderProxy *InMaterialRenderProxy, const FVector2D &InScreenSpaceSize, ERHIFeatureLevel::Type InFeatureLevel)
void	RequestTiles (IAllocatedVirtualTexture *AllocatedVT, const FVector2D &InScreenSpaceSize, const FVector2D &InViewportPosition, const FVector2D &InViewportSize, const FVector2D &InUV0, const FVector2D &InUV1, int32 InMipLevel=-1)
void	LoadPendingTiles (FRDGBuilder &GraphBuilder, ERHIFeatureLevel::Type FeatureLevel)
void	SetMipLevelToLock (FVirtualTextureProducerHandle ProducerHandle, int32 InMipLevel)
void	RequestRecordedTiles (TArray< uint64 > &&InPageRequests)
void	FlushCache ()
void	FlushCache (FVirtualTextureProducerHandle const &ProducerHandle, int32 SpaceID, FIntRect const &TextureRegion, uint32 MaxLevelToEvict, uint32 MaxAgeToKeepMapped, EVTInvalidatePriority InvalidatePriority)
FVector4f	GetGlobalMipBias () const
bool	IsPendingRootPageMap (IAllocatedVirtualTexture *AllocatedVT) const

Static Public Member Functions
static void	Initialize ()
static void	Shutdown ()
static FVirtualTextureSystem &	Get ()

Friends
class	FFeedbackAnalysisTask
class	FAddRequestedTilesTask
class	FGatherRequestsTask
class	FAllocatedVirtualTexture
class	FAdaptiveVirtualTexture
class	FVirtualTextureProducer
class	FVirtualTextureProducerCollection
class	FTexturePageMap
class	FTexturePagePool
class	FRendererModule

Member Function Documentation

AddProducerDestroyedCallback()

void FVirtualTextureSystem::AddProducerDestroyedCallback	(	const FVirtualTextureProducerHandle &	Handle,
		FVTProducerDestroyedFunction *	Function,
		void *	Baton
	)

AllocateAdaptiveVirtualTexture()

IAdaptiveVirtualTexture * FVirtualTextureSystem::AllocateAdaptiveVirtualTexture	(	FRHICommandListBase &	RHICmdList,
		const FAdaptiveVTDescription &	AdaptiveVTDesc,
		const FAllocatedVTDescription &	AllocatedVTDesc
	)

AllocateVirtualTexture()

IAllocatedVirtualTexture * FVirtualTextureSystem::AllocateVirtualTexture	(	FRHICommandListBase &	RHICmdList,
		const FAllocatedVTDescription &	Desc
	)

BeginUpdate()

TUniquePtr< FVirtualTextureUpdater > FVirtualTextureSystem::BeginUpdate	(	FRDGBuilder &	GraphBuilder,
		ERHIFeatureLevel::Type	FeatureLevel,
		ISceneRenderer *	SceneRenderer,
		const FVirtualTextureUpdateSettings &	Settings
	)

CallPendingCallbacks()

void FVirtualTextureSystem::CallPendingCallbacks

(

)

DestroyAdaptiveVirtualTexture()

void FVirtualTextureSystem::DestroyAdaptiveVirtualTexture

(

IAdaptiveVirtualTexture *

AdaptiveVT

)

DestroyVirtualTexture()

void FVirtualTextureSystem::DestroyVirtualTexture

(

IAllocatedVirtualTexture *

AllocatedVT

)

EndUpdate()

void FVirtualTextureSystem::EndUpdate	(	FRDGBuilder &	GraphBuilder,
		TUniquePtr< FVirtualTextureUpdater > &&	Updater,
		ERHIFeatureLevel::Type	FeatureLevel
	)

FinalizeRequests()

void FVirtualTextureSystem::FinalizeRequests	(	FRDGBuilder &	GraphBuilder,
		ISceneRenderer *	SceneRenderer
	)

FlushCache() [1/2]

void FVirtualTextureSystem::FlushCache

(

)

FlushCache() [2/2]

void FVirtualTextureSystem::FlushCache	(	FVirtualTextureProducerHandle const &	ProducerHandle,
		int32	SpaceID,
		FIntRect const &	TextureRegion,
		uint32	MaxLevelToEvict,
		uint32	MaxAgeToKeepMapped,
		EVTInvalidatePriority	InvalidatePriority
	)

Get()

FVirtualTextureSystem & FVirtualTextureSystem::Get ( )

static

GetFrame()

uint32 FVirtualTextureSystem::GetFrame ( ) const

inline

GetGlobalMipBias()

FVector4f FVirtualTextureSystem::GetGlobalMipBias

(

)

const

Initialize()

void FVirtualTextureSystem::Initialize ( )

static

IsPendingRootPageMap()

bool FVirtualTextureSystem::IsPendingRootPageMap

(

IAllocatedVirtualTexture *

AllocatedVT

)

const

LoadPendingTiles()

void FVirtualTextureSystem::LoadPendingTiles	(	FRDGBuilder &	GraphBuilder,
		ERHIFeatureLevel::Type	FeatureLevel
	)

RegisterProducer()

FVirtualTextureProducerHandle FVirtualTextureSystem::RegisterProducer	(	FRHICommandListBase &	RHICmdList,
		const FVTProducerDescription &	InDesc,
		IVirtualTexture *	InProducer
	)

ReleasePendingResources()

void FVirtualTextureSystem::ReleasePendingResources

(

)

ReleaseProducer()

void FVirtualTextureSystem::ReleaseProducer

(

const FVirtualTextureProducerHandle &

Handle

)

RemoveAllProducerDestroyedCallbacks()

uint32 FVirtualTextureSystem::RemoveAllProducerDestroyedCallbacks

(

const void *

Baton

)

RequestRecordedTiles()

void FVirtualTextureSystem::RequestRecordedTiles

(

TArray< uint64 > &&

InPageRequests

)

RequestTiles() [1/3]

void FVirtualTextureSystem::RequestTiles	(	const FMaterialRenderProxy *	InMaterialRenderProxy,
		const FVector2D &	InScreenSpaceSize,
		ERHIFeatureLevel::Type	InFeatureLevel
	)

RequestTiles() [2/3]

void FVirtualTextureSystem::RequestTiles	(	const FVector2D &	InScreenSpaceSize,
		int32	InMipLevel = -1
	)

RequestTiles() [3/3]

void FVirtualTextureSystem::RequestTiles	(	IAllocatedVirtualTexture *	AllocatedVT,
		const FVector2D &	InScreenSpaceSize,
		const FVector2D &	InViewportPosition,
		const FVector2D &	InViewportSize,
		const FVector2D &	InUV0,
		const FVector2D &	InUV1,
		int32	InMipLevel = -1
	)

Helper function to request loading of tiles for a virtual texture that will be displayed in the UI. It will request only the tiles that will be visible after clipping to the provided viewport.

Parameters

AllocatedVT	The virtual texture.
InScreenSpaceSize	Size on screen at which the texture is to be displayed.
InViewportPosition	Position in the viewport where the texture will be displayed.
InViewportSize	Size of the viewport.
InUV0	UV coordinate to use for the top left corner of the texture.
InUV1	UV coordinate to use for the bottom right corner of the texture.
InMipLevel	[optional] Specific mip level to fetch tiles for.

SetMipLevelToLock()

void FVirtualTextureSystem::SetMipLevelToLock	(	FVirtualTextureProducerHandle	ProducerHandle,
		int32	InMipLevel
	)

Shutdown()

void FVirtualTextureSystem::Shutdown ( )

static

TryReleaseProducer()

bool FVirtualTextureSystem::TryReleaseProducer

(

const FVirtualTextureProducerHandle &

Handle

)

Update()

void FVirtualTextureSystem::Update	(	FRDGBuilder &	GraphBuilder,
		ERHIFeatureLevel::Type	FeatureLevel,
		ISceneRenderer *	SceneRenderer,
		const FVirtualTextureUpdateSettings &	Settings
	)

WaitForTasks()

void FVirtualTextureSystem::WaitForTasks

(

FVirtualTextureUpdater *

Updater

)

Friends And Related Symbol Documentation

FAdaptiveVirtualTexture

friend class FAdaptiveVirtualTexture

friend

FAddRequestedTilesTask

friend class FAddRequestedTilesTask

friend

FAllocatedVirtualTexture

friend class FAllocatedVirtualTexture

friend

FFeedbackAnalysisTask

friend class FFeedbackAnalysisTask

friend

FGatherRequestsTask

friend class FGatherRequestsTask

friend

FRendererModule

friend class FRendererModule

friend

FTexturePageMap

friend class FTexturePageMap

friend

FTexturePagePool

friend class FTexturePagePool

friend

FVirtualTextureProducer

friend class FVirtualTextureProducer

friend

FVirtualTextureProducerCollection

friend class FVirtualTextureProducerCollection

friend

---

The documentation for this class was generated from the following files:

• Engine/Source/Runtime/Renderer/Private/VT/VirtualTextureSystem.h
• Engine/Source/Runtime/Renderer/Private/VT/VirtualTextureSystem.cpp