VirtualTexture Namespace Reference

Classes
struct	FFeedbackShaderParams

Functions
void	Recreate ()
void	Recreate (TConstArrayView< TEnumAsByte< EPixelFormat > > InFormat)
RENDERER_API void	BeginFeedback (FRDGBuilder &GraphBuilder, uint32 InBufferSize=0, ERHIFeatureLevel::Type InFeatureLevel=GMaxRHIFeatureLevel)
RENDERER_API void	BeginFeedback (FRDGBuilder &GraphBuilder, FIntPoint InViewportSize, uint32 InVirtualTextureFeedbackTileSize, bool bInExtendFeedbackForDebug, ERHIFeatureLevel::Type InFeatureLevel)
RENDERER_API void	EndFeedback (FRDGBuilder &GraphBuilder)
RENDERER_API void	GetFeedbackShaderParams (int32 InFrameIndex, int32 InVirtualTextureFeedbackTileSize, FFeedbackShaderParams &OutParams)
RENDERER_API void	GetFeedbackShaderParams (FFeedbackShaderParams &OutParams)
RENDERER_API void	UpdateViewUniformShaderParameters (FFeedbackShaderParams const &InParams, FViewUniformShaderParameters &ViewUniformShaderParameters)
FRDGBuffer *	ResolveExtendedDebugBuffer (FRDGBuilder &GraphBuilder)

Function Documentation

BeginFeedback() [1/2]

void VirtualTexture::BeginFeedback	(	FRDGBuilder &	GraphBuilder,
		FIntPoint	InViewportSize,
		uint32	InVirtualTextureFeedbackTileSize,
		bool	bInExtendFeedbackForDebug,
		ERHIFeatureLevel::Type	InFeatureLevel
	)

Begin a virtual texture feedback scope. InViewportSize and InVirtualTextureFeedbackTileSize are used to calculate the feedback buffer size. If bInExtendFeedbackForDebug is true we will allocate room at the end of the feedback buffer to capture extra debug info. Note that there is only one global feedback buffer alive at any time and its buffer size is later used internally by GetFeedbackShaderParams().

BeginFeedback() [2/2]

void VirtualTexture::BeginFeedback	(	FRDGBuilder &	GraphBuilder,
		uint32	InBufferSize = 0,
		ERHIFeatureLevel::Type	InFeatureLevel = GMaxRHIFeatureLevel
	)

Begin a virtual texture feedback scope. The feedback buffer size will be InBufferSize. If InBufferSize is 0 a default size is used. Note that there is only one global feedback buffer alive at any time and its buffer size is later used internally by GetFeedbackShaderParams().

EndFeedback()

void VirtualTexture::EndFeedback

(

FRDGBuilder &

GraphBuilder

)

End a virtual texture feedback scope.

GetFeedbackShaderParams() [1/2]

void VirtualTexture::GetFeedbackShaderParams

(

FFeedbackShaderParams &

OutParams

)

Get virtual texture feedback parameters to use for binding to any shader that is sampling virtual textures. This version uses an internal scene frame counter, and the project default feedback tile size. This is only valid within a BeginFeedback()/EndFeedback() scope.

GetFeedbackShaderParams() [2/2]

void VirtualTexture::GetFeedbackShaderParams	(	int32	InFrameIndex,
		int32	InVirtualTextureFeedbackTileSize,
		FFeedbackShaderParams &	OutParams
	)

Get virtual texture feedback parameters to use for binding to any shader that is sampling virtual textures. This is only valid within a BeginFeedback()/EndFeedback() scope.

Recreate() [1/2]

void VirtualTexture::Recreate

(

)

Reinitialize all virtual texture producers.

Recreate() [2/2]

void VirtualTexture::Recreate

(

TConstArrayView< TEnumAsByte< EPixelFormat > >

InFormat

)

Reinitialize all virtual texture that match the passed in format.

ResolveExtendedDebugBuffer()

FRDGBuffer * VirtualTexture::ResolveExtendedDebugBuffer

(

FRDGBuilder &

GraphBuilder

)

This resolves any extended debug information that is currently stored at the end of the feedback buffer and returns a buffer that contains it. This is only valid within a BeginFeedback()/EndFeedback() scope.

UpdateViewUniformShaderParameters()

void VirtualTexture::UpdateViewUniformShaderParameters	(	FFeedbackShaderParams const &	InParams,
		FViewUniformShaderParameters &	ViewUniformShaderParameters
	)

Helper to copy the virtual texture feedback shader parameters into the view parameters to be bound in the view uniform buffer.