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  3. FRawStaticIndexBuffer

FRawStaticIndexBuffer

API > API/Runtime > API/Runtime/Engine

   
Name FRawStaticIndexBuffer
Type class
Header File /Engine/Source/Runtime/Engine/Public/RawIndexBuffer.h
Include Path #include "RawIndexBuffer.h"

Syntax

class FRawStaticIndexBuffer : public FIndexBuffer

Inheritance Hierarchy

Constructors

Name Remarks Include Path Unreal Specifiers

FRawStaticIndexBuffer ( bool InNeedsCPUAccess
)

 Initialization constructor. RawIndexBuffer.h  

Destructors

Name Remarks Include Path Unreal Specifiers

virtual ~FRawStaticIndexBuffer()

   RawIndexBuffer.h  

Variables

Protected

Name Type Remarks Include Path Unreal Specifiers
b32Bit bool 32bit or 16bit? RawIndexBuffer.h  
CachedNumIndices int32 If >= 0, represents the number of indices in this IB. RawIndexBuffer.h  
IndexStorage TResourceArray< uint8, INDEXBUFFER_ALIGNMENT > Storage for indices. RawIndexBuffer.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

const uint16 * AccessStream16()

 Get the direct read access to index data Only valid if NeedsCPUAccess = true and indices are 16 bit RawIndexBuffer.h  

const uint32 * AccessStream32()

 Get the direct read access to index data Only valid if NeedsCPUAccess = true and indices are 32 bit RawIndexBuffer.h  

void AppendIndices ( const uint32* IndicesToAppend,
const uint32 NumIndicesToAppend
)

 Append indices to the end of the buffer RawIndexBuffer.h  

void ClearMetaData()

   RawIndexBuffer.h  

FBufferRHIRef CreateRHIBuffer ( FRHICommandListBase& RHICmdList
)

 Create an RHI index buffer with CPU data. RawIndexBuffer.h  

void Discard()

 Discard discards the serialized data when it is not needed RawIndexBuffer.h  

void ExpandTo32Bit()

 Expands the 16bit index buffer to 32bit RawIndexBuffer.h  

SIZE_T GetAllocatedSize()

 Computes the amount of memory allocated to store the indices. RawIndexBuffer.h  

bool GetAllowCPUAccess()

   RawIndexBuffer.h  
Retrieves an array view in to the index buffer. RawIndexBuffer.h  

void GetCopy ( TArray< uint32 >& OutIndices
) const

 Retrieve a copy of the indices in this buffer. RawIndexBuffer.h  

uint32 GetIndex ( const uint32 At
) const

   RawIndexBuffer.h  

int32 GetIndexDataSize()

 == GetNumIndices() * (b32Bit ? 4 : 2) RawIndexBuffer.h  

int32 GetNumIndices()

 Computes the number of indices stored in this buffer. RawIndexBuffer.h  

void InitRHIForStreaming ( FRHIBuffer* IntermediateBuffer,
FRHIResourceReplaceBatcher& Batcher
)

 Take over ownership of IntermediateBuffer RawIndexBuffer.h  

void InsertIndices ( const uint32 At,
const uint32* IndicesToAppend,
const uint32 NumIndicesToAppend
)

 Insert indices at the given position in the buffer RawIndexBuffer.h  

bool Is32Bit()

   RawIndexBuffer.h  

void ReleaseRHIForStreaming ( FRHIResourceReplaceBatcher& Batcher
)

 Release any GPU resource owned by the RHI object RawIndexBuffer.h  

void RemoveIndicesAt ( const uint32 At,
const uint32 NumIndicesToRemove
)

 Removes indices from the buffer RawIndexBuffer.h  

void Serialize ( FArchive& Ar,
bool bNeedsCPUAccess
)

 Serialization. RawIndexBuffer.h  

void SerializeMetaData ( FArchive& Ar
)

 Serialize only meta data (e.g. number of indices) but not the actual index data RawIndexBuffer.h  

void SetIndex ( const uint32 At,
const uint32 NewIndexValue
)

 Sets a single index value. Consider using SetIndices() instead if you're setting a lot of indices. RawIndexBuffer.h  

void SetIndices ( const TArray< uint32 >& InIndices,
EIndexBufferStride::Type DesiredStride
)

 Set the indices stored within this buffer. RawIndexBuffer.h  

bool TrySetAllowCPUAccess ( bool bAllowCPUAccess
)

 Copy everything, keeping reference to the same RHI resources. RawIndexBuffer.h  

Overridden from FRenderResource

Name Remarks Include Path Unreal Specifiers

virtual void InitRHI ( FRHICommandListBase& RHICmdList
)

   RawIndexBuffer.h  

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