FTransferResourceParams | Unreal Engine 5.2 Documentation

References


Module	RHI
Header	/Engine/Source/Runtime/RHI/Public/RHIContext.h
Include	#include "RHIContext.h"

struct FTransferResourceParams

Parameters for RHITransferResources, used to copy memory between GPUs

Type	Name	Description
bool	bLockStepGPUs	Whether the GPUs must handshake before and after the transfer.
bool	bPullData	Whether the data is read by the dest GPU, or written by the src GPU (not allowed if the texture is a backbuffer)
FBufferRHIRef	Buffer	Or alternately, a buffer that's allocated on both GPUs.
FTransferResourceFenceData *	DelayedFence	Optional pointer where fence data can be written if you want to delay waiting on the GPU fence for a resource transfer.
uint32	DestGPUIndex	The GPU index where the data will be written to.
FIntVector	Max	The max rect of the texture region to copy.
FIntVector	Min	The min rect of the texture region to copy.
FTransferResourceFenceData *	PreTransferFence	Optional pointer to a fence to wait on before starting the transfer.
uint32	SrcGPUIndex	The GPU index where the data will be read from.
FTextureRHIRef	Texture	The texture which must be must be allocated on both GPUs.

	Type	Name	Description
		FTransferResourceParams ()
		FTransferResourceParams ( FRHITexture* InTexture, uint32 InSrcGPUIndex, uint32 InDestGPUIndex, bool InPullData, bool InLockStepGPUs )
		FTransferResourceParams ( FRHIBuffer* InBuffer, uint32 InSrcGPUIndex, uint32 InDestGPUIndex, bool InPullData, bool InLockStepGPUs )
		FTransferResourceParams ( FRHITexture2D* InTexture, const FIntRect& InRect, uint32 InSrcGPUIndex, uint32 InDestGPUIndex, bool InPullData, bool InLockStepGPUs )