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  3. FMeshAttributeArraySetBase

FMeshAttributeArraySetBase

This is the base class for an attribute array set.

Unreal Engine C++ API Reference > Runtime > MeshDescription

Inheritance Hierarchy

References

   
Module MeshDescription
Header /Engine/Source/Runtime/MeshDescription/Public/MeshAttributeArray.h
Include #include "MeshAttributeArray.h"

Syntax

class FMeshAttributeArraySetBase

Remarks

This is the base class for an attribute array set. An attribute array set is a container which holds attribute arrays, one per attribute index. Many attributes have only one index, while others (such as texture coordinates) may want to define many.

All attribute array set instances will be of derived types; this type exists for polymorphism purposes, so that they can be managed by a generic TUniquePtr.

In general, we avoid accessing them via virtual dispatch by insisting that their type be passed as a template parameter in the accessor. This can be checked against the Type field to ensure that we are accessing an instance by its correct type.

Variables

  Type Name Description
Protected variable uint32 Extent Extent of the type, i.e. the number of array elements it consists of
Protected variable EMeshAttributeFlags Flags Implementation-defined attribute name flags
Protected variable int32 NumElements Number of elements in each index
Protected variable uint32 Type Type of the attribute array (based on the tuple element index from AttributeTypes)

Constructors

  Type Name Description
Public function  

FMeshAttributeArraySetBase ( const uint32 InType,
const EMeshAttributeFlags InFlags,
const int32 InNumberOfElements,
const uint32 InExtent
)

 Constructor

Destructors

  Type Name Description
Public function Virtual   Virtual interface

Functions

  Type Name Description
Public function Const TUniquePtr< FMeshAttributeArraySetBase >

Clone ()

  
Public function Const uint32 Get the type extent of this attribute array set
Public function Const EMeshAttributeFlags Get the flags for this attribute array set
Public function Const uint32

GetHash ()

  
Public function Const int32  
Public function Const int32 Return number of elements each attribute index has
Public function Const int32  
Public function Const uint32

GetType ()

 Get the type index of this attribute array set
Public function Const bool

HasType ()

 Determine whether this attribute array set is of the given type
Public function void

Initialize ( const int32 Count
)

  
Public function void

Insert ( const int32 Index
)

  
Public function void

InsertChannel ( const int32 Index
)

  
Public function void

InsertIndex ( const int32 Index
)

  
Public function void

Remap ( const TSparseArray< int32 >& IndexRemap
)

  
Public function void

Remove ( const int32 Index
)

  
Public function void

RemoveChannel ( const int32 Index
)

  
Public function void

RemoveIndex ( const int32 Index
)

  
Public function void  
Public function void

SetFlags ( const EMeshAttributeFlags InFlags
)

 Set the flags for this attribute array set
Public function void

SetNumChannels ( const int32 NumChannels
)

  
Public function void

SetNumElements ( const int32 Count
)

  
Public function void

SetNumIndices ( const int32 NumIndices
)

  

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