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> Unreal Engine API Reference > Runtime > RHI > IRHIComputeContext > IRHIComputeContext::RHITransitionResources

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IRHIComputeContext::RHITransitionResources

Explicitly transition a UAV from readable -> writable by the GPU or vice versa.

Windows

MacOS

Linux

Override Hierarchy

IRHIComputeContext::RHITransitionResources()

IRHICommandContext::RHITransitionResources()

References

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

Syntax

void RHITransitionResources
(
    EResourceTransitionAccess TransitionType,
    EResourceTransitionPipeline TransitionPipeline,
    FRHIUnorderedAccessView ** InUAVs,
    int32 NumUAVs,
    FRHIComputeFence * WriteComputeFence
)

Remarks

Explicitly transition a UAV from readable -> writable by the GPU or vice versa. Also explicitly states which pipeline the UAV can be used on next. For example, if a Compute job just wrote this UAV for a Pixel shader to read you would do EResourceTransitionAccess::Readable and EResourceTransitionPipeline::EComputeToGfx

Parameters

Parameter	Description
TransitionType	direction of the transition
EResourceTransitionPipeline	How this UAV is transitioning between Gfx and Compute, if at all.
InUAVs	array of UAV objects to transition
NumUAVs	number of UAVs to transition
WriteComputeFence	Optional ComputeFence to write as part of this transition

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