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Unreal Engine C++ API Reference > Runtime > RHI > FDynamicRHI
- FDynamicRHI::RHILockStagingBuffer()
- FVulkanDynamicRHI::RHILockStagingBuffer()
- FOpenGLDynamicRHI::RHILockStagingBuffer()
References
Module | RHI |
Header | /Engine/Source/Runtime/RHI/Public/DynamicRHI.h |
Include | #include "DynamicRHI.h" |
Source | /Engine/Source/Runtime/RHI/Private/RHICommandList.cpp |
virtual void &42; RHILockStagingBuffer
&40;
FRHIStagingBuffer &42; StagingBuffer,
FRHIGPUFence &42; Fence,
uint32 Offset,
uint32 SizeRHI
&41;
Remarks
Lock a staging buffer to read contents on the CPU that were written by the GPU, without having to stall. This function requires that you have issued an CopyToStagingBuffer invocation and verified that the FRHIGPUFence has been signaled before calling. A pointer to the data starting at 'Offset' and of length 'SizeRHI' from 'StagingBuffer', or nullptr when there is an error.
Parameters
Name | Description |
---|---|
StagingBuffer | The buffer to lock. |
Fence | An optional fence synchronized with the last buffer update. |
Offset | The offset in the buffer to return. |
SizeRHI | The length of the region in the buffer to lock. |