UDocumentation UE5.7 10.02.2026 (Source)
API documentation for Unreal Engine 5.7
Public Member Functions | List of all members
FVirtualTextureFeedbackBufferResource Class Reference
+ Inheritance diagram for FVirtualTextureFeedbackBufferResource:

Public Member Functions

void Begin (FRDGBuilder &GraphBuilder, uint32 InFeedbackBufferSize, uint32 InExtendedDebugBufferSize, ERHIFeatureLevel::Type InFeatureLevel)
 
void End (FRDGBuilder &GraphBuilder)
 
FRDGBuffer * ResolveExtendedDebugBuffer (FRDGBuilder &GraphBuilder)
 
uint32 GetBufferSize () const
 
uint32 GetExtendedDebugBufferSize () const
 
FRHIUnorderedAccessView * GetUAV () const
 
virtual void ReleaseRHI () override
 
- Public Member Functions inherited from FRenderResource
RENDERCORE_API FRenderResource ()
 
RENDERCORE_API FRenderResource (ERHIFeatureLevel::Type InFeatureLevel)
 
RENDERCORE_API FRenderResource (const FRenderResource &)
 
RENDERCORE_API FRenderResource (FRenderResource &&)
 
RENDERCORE_API FRenderResource & operator= (const FRenderResource &Other)
 
RENDERCORE_API FRenderResource & operator= (FRenderResource &&Other)
 
virtual RENDERCORE_API ~FRenderResource ()
 
virtual void InitRHI (FRHICommandListBase &RHICmdList)
 
virtual RENDERCORE_API void InitResource (FRHICommandListBase &RHICmdList)
 
virtual RENDERCORE_API void ReleaseResource ()
 
RENDERCORE_API void UpdateRHI (FRHICommandListBase &RHICmdList)
 
virtual FString GetFriendlyName () const
 
bool IsInitialized () const
 
int32 GetListIndex () const
 
EInitPhase GetInitPhase () const
 
void SetOwnerName (FName InOwnerName)
 
FName GetOwnerName () const
 
void SetResourceName (FName InResourceName)
 
FName GetResourceName () const
 

Additional Inherited Members

- Public Types inherited from FRenderResource
enum class  EInitPhase : uint8 { Pre , Default , MAX }
 
- Static Public Member Functions inherited from FRenderResource
static RENDERCORE_API void ReleaseRHIForAllResources ()
 
static RENDERCORE_API void InitPreRHIResources ()
 
static RENDERCORE_API void ChangeFeatureLevel (ERHIFeatureLevel::Type NewFeatureLevel)
 
static RENDERCORE_API FName SetScopeName (FName Name)
 
- Public Attributes inherited from FRenderResource
ERenderResourceState ResourceState = ERenderResourceState::Default
 
- Protected Member Functions inherited from FRenderResource
void SetFeatureLevel (const FStaticFeatureLevel InFeatureLevel)
 
const FStaticFeatureLevel GetFeatureLevel () const
 
bool HasValidFeatureLevel () const
 
template<typename T >
FBufferRHIRef CreateRHIBuffer (FRHICommandListBase &RHICmdList, T &InOutResourceObject, uint32 ResourceCount, EBufferUsageFlags InBufferUsageFlags, const TCHAR *InDebugName)
 
void SetInitPhase (EInitPhase InInitPhase)
 
- Static Protected Member Functions inherited from FRenderResource
static RENDERCORE_API FRHICommandListBase & GetImmediateCommandList ()
 

Detailed Description

GPU feedback buffer for tracking virtual texture requests from the GPU.

Member Function Documentation

◆ Begin()

void FVirtualTextureFeedbackBufferResource::Begin ( FRDGBuilder &  GraphBuilder,
uint32  InFeedbackBufferSize,
uint32  InExtendedDebugBufferSize,
ERHIFeatureLevel::Type  InFeatureLevel 
)

Allocates and prepares a new feedback buffer for write access.

◆ End()

void FVirtualTextureFeedbackBufferResource::End ( FRDGBuilder &  GraphBuilder)

Compacts the feedback buffer on the GPU and copies the compacted buffer for readback.

◆ GetBufferSize()

uint32 FVirtualTextureFeedbackBufferResource::GetBufferSize ( ) const

Get the size of the feedback buffer from the last call to Begin().

◆ GetExtendedDebugBufferSize()

uint32 FVirtualTextureFeedbackBufferResource::GetExtendedDebugBufferSize ( ) const

Get the added size for the extended debug area of the feedback buffer from the last call to Begin().

◆ GetUAV()

FRHIUnorderedAccessView * FVirtualTextureFeedbackBufferResource::GetUAV ( ) const

Get the UAV of the feedback buffer.

◆ ReleaseRHI()

void FVirtualTextureFeedbackBufferResource::ReleaseRHI ( )
overridevirtual

Releases the RHI resources used by this resource. Called when leaving the state where both the resource and the RHI have been initialized. This is only called by the rendering thread.

Reimplemented from FRenderResource.

◆ ResolveExtendedDebugBuffer()

FRDGBuffer * FVirtualTextureFeedbackBufferResource::ResolveExtendedDebugBuffer ( FRDGBuilder &  GraphBuilder)

Resolve and return any extended debug information that is currently stored at the end of the feedback buffer.

The documentation for this class was generated from the following file: