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> Unreal Engine API Reference > Plugins > Niagara > FScopedNiagaraDataSetGPUReadback

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FScopedNiagaraDataSetGPUReadback

Allows immediate access to GPU data on the CPU, you can then use [FNiagaraDataSetAccessor](API\Plugins\Niagara\FNiagaraDataSetAccessor) to access the data.

Windows

MacOS

Linux

References

Module	Niagara
Header	/Engine/Plugins/FX/Niagara/Source/Niagara/Classes/NiagaraDataSet.h
Include	#include "NiagaraDataSet.h"

Syntax

class FScopedNiagaraDataSetGPUReadback

Remarks

Allows immediate access to GPU data on the CPU, you can then use FNiagaraDataSetAccessor to access the data. This will make a copy of the GPU data and will stall the CPU until the data is ready from the GPU, therefore it should only be used for tools / debugging. For async readback see FNiagaraSystemInstance::RequestCapture.

Constructors

	Name	Description
	FScopedNiagaraDataSetGPUReadback()

Destructors

	Name	Description
	~FScopedNiagaraDataSetGPUReadback()

Functions

		Name	Description
	uint32	GetNumInstances()
	void	ReadbackData ( NiagaraEmitterInstanceBatcher..., FNiagaraDataSet InDataSet )

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