1. Epic GamesDeveloper
  3. FMeshDescription

FMeshDescription

API > API/Runtime > API/Runtime/MeshDescription

   
Name FMeshDescription
Type struct
Header File /Engine/Source/Runtime/MeshDescription/Public/MeshDescription.h
Include Path #include "MeshDescription.h"

Syntax

struct FMeshDescription

Constructors

Name Remarks Include Path Unreal Specifiers
Mesh description should be a moveable type. MeshDescription.h  
  MeshDescription.h  
  MeshDescription.h  

Destructors

Name Remarks Include Path Unreal Specifiers

~FMeshDescription()

   MeshDescription.h  

Constants

Name Type Remarks Include Path
EdgesName FName   MeshDescription.h
PolygonGroupsName FName   MeshDescription.h
PolygonsName FName   MeshDescription.h
TrianglesName FName   MeshDescription.h
UVsName FName   MeshDescription.h
VertexInstancesName FName   MeshDescription.h
VerticesName FName   MeshDescription.h

Variables

Protected

Name Type Remarks Include Path Unreal Specifiers
EdgeElements FMeshElementChannels *   MeshDescription.h  
EdgeToTriangles FMeshElementIndexer   MeshDescription.h  
EdgeVertices TMeshAttributesArray< TArrayView< FVertexID > >   MeshDescription.h  
Elements TMap< FName, FMeshElementTypeWrapper >   MeshDescription.h  
PolygonElements FMeshElementChannels *   MeshDescription.h  
PolygonGroupElements FMeshElementChannels *   MeshDescription.h  
PolygonGroupToPolygons FMeshElementIndexer   MeshDescription.h  
PolygonGroupToTriangles FMeshElementIndexer   MeshDescription.h  
PolygonPolygonGroups TMeshAttributesArray< FPolygonGroupID >   MeshDescription.h  
PolygonToTriangles FMeshElementIndexer   MeshDescription.h  
TriangleEdges TMeshAttributesArray< TArrayView< FEdgeID > >   MeshDescription.h  
TriangleElements FMeshElementChannels *   MeshDescription.h  
TrianglePolygonGroups TMeshAttributesArray< FPolygonGroupID >   MeshDescription.h  
TrianglePolygons TMeshAttributesArray< FPolygonID >   MeshDescription.h  
TriangleUVs TMeshAttributesArray< TArrayView< FUVID > >   MeshDescription.h  
TriangleVertexInstances TMeshAttributesArray< TArrayView< FVertexInstanceID > >   MeshDescription.h  
TriangleVertices TMeshAttributesArray< TArrayView< FVertexID > >   MeshDescription.h  
UVElements FMeshElementChannels *   MeshDescription.h  
UVToTriangles FMeshElementIndexer   MeshDescription.h  
VertexElements FMeshElementChannels *   MeshDescription.h  
VertexInstanceElements FMeshElementChannels *   MeshDescription.h  
VertexInstanceToTriangles FMeshElementIndexer   MeshDescription.h  
VertexInstanceVertices TMeshAttributesArray< FVertexID >   MeshDescription.h  
VertexPositions TMeshAttributesArray< FVector3f >   MeshDescription.h  
VertexToEdges FMeshElementIndexer   MeshDescription.h  
VertexToVertexInstances FMeshElementIndexer The indexers are all mutable because they may be rebuilt during what is essentially a get operation. MeshDescription.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

void BuildEdgeIndexers()

   MeshDescription.h  

void BuildIndexers()

   MeshDescription.h  

void BuildPolygonGroupIndexers()

   MeshDescription.h  

void BuildPolygonIndexers()

   MeshDescription.h  

void BuildVertexIndexers()

   MeshDescription.h  

void BuildVertexInstanceIndexers()

   MeshDescription.h  

void Compact ( FElementIDRemappings& OutRemappings
)

 Compacts the data held in the mesh description, and returns an object describing how the IDs have been remapped. MeshDescription.h  

FBox ComputeBoundingBox()

   MeshDescription.h  

void ComputePolygonTriangulation ( const FPolygonID PolygonID
)

 Generates triangles and internal edges for the given polygon MeshDescription.h  

FEdgeID CreateEdge ( const FVertexID VertexID0,
const FVertexID VertexID1
)

 Adds a new edge to the mesh and returns its ID MeshDescription.h  

void CreateEdgeWithID ( const FEdgeID EdgeID,
const FVertexID VertexID0,
const FVertexID VertexID1
)

 Adds a new edge to the mesh with the given ID MeshDescription.h  

FPolygonID CreatePolygon ( const FPolygonGroupID PolygonGroupID,
TArrayView< const FVertexInstanceID > VertexInstanceIDs,
TArray< FEdgeID >* OutEdgeIDs
)

 Adds a new polygon to the mesh and returns its ID. MeshDescription.h  

FPolygonGroupID CreatePolygonGroup()

 Adds a new polygon group to the mesh and returns its ID MeshDescription.h  

void CreatePolygonGroupWithID ( const FPolygonGroupID PolygonGroupID
)

 Adds a new polygon group to the mesh with the given ID MeshDescription.h  

void CreatePolygonWithID ( const FPolygonID PolygonID,
const FPolygonGroupID PolygonGroupID,
TArrayView< const FVertexInstanceID > VertexInstanceIDs,
TArray< FEdgeID >* OutEdgeIDs
)

 Adds a new polygon to the mesh with the given ID. MeshDescription.h  

FTriangleID CreateTriangle ( const FPolygonGroupID PolygonGroupID,
TArrayView< const FVertexInstanceID > VertexInstanceIDs,
TArray< FEdgeID >* OutEdgeIDs
)

 Adds a new triangle to the mesh and returns its ID. MeshDescription.h  

void CreateTriangleWithID ( const FTriangleID TriangleID,
const FPolygonGroupID PolygonGroupID,
TArrayView< const FVertexInstanceID > VertexInstanceIDs,
TArray< FEdgeID >* OutEdgeIDs
)

 Adds a new triangle to the mesh with the given ID. MeshDescription.h  

FUVID CreateUV ( const int32 UVChannel
)

 Adds a new UV to the mesh and returns its ID MeshDescription.h  

void CreateUVWithID ( const FUVID UVID,
const int32 UVChannel
)

 Adds a new UV to the mesh with the given ID MeshDescription.h  

FVertexID CreateVertex()

 Adds a new vertex to the mesh and returns its ID MeshDescription.h  

FVertexInstanceID CreateVertexInstance ( const FVertexID VertexID
)

 Adds a new vertex instance to the mesh and returns its ID MeshDescription.h  

void CreateVertexInstanceWithID ( const FVertexInstanceID VertexInstanceID,
const FVertexID VertexID
)

 Adds a new vertex instance to the mesh with the given ID MeshDescription.h  

void CreateVertexWithID ( const FVertexID VertexID
)

 Adds a new vertex to the mesh with the given ID MeshDescription.h  

void DeleteEdge ( const FEdgeID EdgeID,
TArray< FVertexID >* InOutOrphanedVerticesPtr
)

 Deletes an edge from the mesh MeshDescription.h  

void DeletePolygon ( const FPolygonID PolygonID,
TArray< FEdgeID >* InOutOrphanedEdgesPtr,
TArray< FVertexInstanceID >* InOutOrphanedVertexInstancesPtr,
TArray< FPolygonGroupID >* InOutOrphanedPolygonGroupsPtr
)

 Deletes a polygon from the mesh MeshDescription.h  

void DeletePolygonGroup ( const FPolygonGroupID PolygonGroupID
)

 Deletes a polygon group from the mesh MeshDescription.h  

void DeletePolygons ( const TArray< FPolygonID >& Polygons
)

 Deletes polygons from the mesh and remove all orphaned polygon groups, vertex instances, edges and vertices. MeshDescription.h  

void DeleteTriangle ( const FTriangleID TriangleID,
TArray< FEdgeID >* InOutOrphanedEdgesPtr,
TArray< FVertexInstanceID >* InOutOrphanedVertexInstancesPtr,
TArray< FPolygonGroupID >* InOutOrphanedPolygonGroupsPtr
)

 Deletes a triangle from the mesh MeshDescription.h  

void DeleteTriangles ( const TArray< FTriangleID >& Triangles
)

 Deletes triangles from the mesh and remove all orphaned polygon groups, vertex instances, edges and vertices. MeshDescription.h  

void DeleteUV ( const FUVID UVID,
const int32 UVChannel
)

 Deletes a UV from the mesh MeshDescription.h  

void DeleteVertex ( const FVertexID VertexID
)

 Deletes a vertex from the mesh MeshDescription.h  

void DeleteVertexInstance ( const FVertexInstanceID VertexInstanceID,
TArray< FVertexID >* InOutOrphanedVerticesPtr
)

 Deletes a vertex instance from a mesh MeshDescription.h  
  MeshDescription.h  
  MeshDescription.h  

const FEdgeArray & Edges ()

   MeshDescription.h  

FEdgeArray & Edges ()

   MeshDescription.h  

void Empty()

 Empty the meshdescription. MeshDescription.h  

void FindPolygonPerimeter ( const FPolygonID PolygonID,
TArrayView< FEdgeID > Edges
) const

   MeshDescription.h  

void FindPolygonPerimeter ( TArrayView< const FTriangleID > Triangles,
TArrayView< TTuple< int32, int32 > > Result
) const

 Determines the vertex instances which form the perimeter of a polygon MeshDescription.h  

FBoxSphereBounds GetBounds()

 Returns bounds of vertices MeshDescription.h  

TArray< FPolygonID, Alloc > GetEdgeConnectedPolygons ( const FEdgeID EdgeID
) const

 Returns the polygons connected to this edge as an array with the specified allocator template type. MeshDescription.h  

void GetEdgeConnectedPolygons ( const FEdgeID EdgeID,
TArray< FPolygonID, Alloc >& OutPolygonIDs
) const

 Populates the passed array with polygon IDs connected to this edge MeshDescription.h  
Returns the polygons connected to this edge MeshDescription.h  

TArrayView< const FTriangleID > GetEdgeConnectedTriangleIDs ( const FEdgeID EdgeID
) const

 Returns reference to an array of triangle IDs connected to this edge MeshDescription.h  

TArray< FTriangleID > GetEdgeConnectedTriangles ( const FEdgeID EdgeID
) const

   MeshDescription.h  

FVertexID GetEdgeVertex ( const FEdgeID EdgeID,
int32 VertexNumber
) const

 Returns the vertex ID corresponding to one of the edge endpoints MeshDescription.h  

TArrayView< const FVertexID > GetEdgeVertices ( const FEdgeID EdgeID
) const

 Returns a pair of vertex IDs defining the edge MeshDescription.h  
  MeshDescription.h  
  MeshDescription.h  

int32 GetNumEdgeConnectedPolygons ( const FEdgeID EdgeID
) const

 Returns the number of polygons connected to this edge MeshDescription.h  

int32 GetNumEdgeConnectedTriangles ( const FEdgeID EdgeID
) const

   MeshDescription.h  

int32 GetNumPolygonGroupPolygons ( const FPolygonGroupID PolygonGroupID
) const

 Returns the number of polygons in this polygon group MeshDescription.h  

int32 GetNumPolygonGroupTriangles ( const FPolygonGroupID PolygonGroupID
) const

 Returns the number of triangles in this polygon group MeshDescription.h  

int32 GetNumPolygonInternalEdges ( const FPolygonID PolygonID
) const

 Return the number of internal edges in this polygon MeshDescription.h  

int32 GetNumPolygonTriangles ( const FPolygonID PolygonID
) const

 Return the number of triangles which comprise this polygon MeshDescription.h  

int32 GetNumPolygonVertices ( const FPolygonID PolygonID
) const

 Returns the number of vertices this polygon has MeshDescription.h  

int32 GetNumUVElementChannels()

 Gets the number of UV element channels MeshDescription.h  

int32 GetNumVertexConnectedEdges ( const FVertexID VertexID
) const

 Returns number of edges connected to this vertex MeshDescription.h  

int32 GetNumVertexConnectedPolygons ( const FVertexID VertexID
) const

 Returns the number of polygons connected to this vertex MeshDescription.h  

int32 GetNumVertexConnectedTriangles ( const FVertexID VertexID
) const

 Returns number of triangles connected to this vertex MeshDescription.h  

int32 GetNumVertexInstanceConnectedPolygons ( const FVertexInstanceID VertexInstanceID
) const

 Returns the number of polygons connected to this vertex instance. MeshDescription.h  

int32 GetNumVertexInstanceConnectedTriangles ( const FVertexInstanceID VertexInstanceID
) const

 Returns the number of triangles connected to this vertex instance MeshDescription.h  

int32 GetNumVertexVertexInstances ( const FVertexID VertexID
) const

 Returns number of vertex instances created from this vertex MeshDescription.h  

TArray< FPolygonID, Alloc > GetPolygonAdjacentPolygons ( const FPolygonID PolygonID
) const

 Return adjacent polygons into a TArray with the specified allocator MeshDescription.h  

void GetPolygonAdjacentPolygons ( const FPolygonID PolygonID,
TArray< FPolygonID, Alloc >& OutPolygonIDs
) const

 Populates the passed array with adjacent polygons MeshDescription.h  
Return adjacent polygons to this polygon MeshDescription.h  

float GetPolygonCornerAngleForVertex ( const FPolygonID PolygonID,
const FVertexID VertexID
) const

   MeshDescription.h  

TArrayView< const FPolygonID > GetPolygonGroupPolygonIDs ( const FPolygonGroupID PolygonGroupID
) const

 Returns the polygons associated with the given polygon group MeshDescription.h  

TArray< FPolygonID > GetPolygonGroupPolygons ( const FPolygonGroupID PolygonGroupID
) const

   MeshDescription.h  

TArrayView< const FTriangleID > GetPolygonGroupTriangles ( const FPolygonGroupID PolygonGroupID
) const

 Returns the triangles associated with the given polygon group MeshDescription.h  

TArray< FEdgeID, Alloc > GetPolygonInternalEdges ( const FPolygonID PolygonID
) const

 Return the internal edges of this polygon, i.e. those which separate constituent triangles MeshDescription.h  

TArray< FEdgeID > GetPolygonInternalEdges ( const FPolygonID PolygonID
) const

 Return the internal edges of this polygon, i.e. those which separate constituent triangles MeshDescription.h  

void GetPolygonInternalEdges ( const FPolygonID PolygonID,
TArray< FEdgeID, Alloc >& OutEdgeIDs
) const

 Populate the provided array with a list of edges which are internal to the polygon, i.e. those which separate constituent triangles. MeshDescription.h  

TArray< FEdgeID, Alloc > GetPolygonPerimeterEdges ( const FPolygonID PolygonID
) const

 Returns the vertices which form the polygon perimeter as an array templated on the given allocator MeshDescription.h  

TArray< FEdgeID > GetPolygonPerimeterEdges ( const FPolygonID PolygonID
) const

 Returns the vertices which form the polygon perimeter MeshDescription.h  

void GetPolygonPerimeterEdges ( const FPolygonID PolygonID,
TArray< FEdgeID, Alloc >& OutEdgeIDs
) const

 Populates the passed array with the edges which form the polygon perimeter MeshDescription.h  

FPolygonGroupID GetPolygonPolygonGroup ( const FPolygonID PolygonID
) const

 Return the polygon group associated with a polygon MeshDescription.h  

TArray< FTriangleID > GetPolygonTriangleIDs ( const FPolygonID PolygonID
) const

   MeshDescription.h  

TArrayView< const FTriangleID > GetPolygonTriangles ( const FPolygonID PolygonID
) const

 Return reference to an array of triangle IDs which comprise this polygon MeshDescription.h  
  MeshDescription.h  

TArray< FVertexInstanceID, Alloc > GetPolygonVertexInstances ( const FPolygonID PolygonID
) const

   MeshDescription.h  

void GetPolygonVertexInstances ( const FPolygonID PolygonID,
TArray< FVertexInstanceID, Alloc >& OutVertexInstanceIDs
) const

 Returns reference to an array of VertexInstance IDs forming the perimeter of this polygon MeshDescription.h  

TArray< FVertexID > GetPolygonVertices ( const FPolygonID PolygonID
) const

 Returns the vertices which form the polygon perimeter MeshDescription.h  

void GetPolygonVertices ( const FPolygonID PolygonID,
TArray< FVertexID, Alloc >& OutVertexIDs
) const

 Populates the passed array of VertexIDs with the vertices which form the polygon perimeter MeshDescription.h  

TArray< FVertexID, Alloc > GetPolygonVertices ( const FPolygonID PolygonID
) const

 Returns the vertices which form the polygon perimeter as an array templated on the given allocator MeshDescription.h  

void GetTriangleAdjacentTriangles ( const FTriangleID TriangleID,
TArray< FTriangleID, Alloc >& OutTriangleIDs
) const

 Populates the passed array with adjacent triangles MeshDescription.h  
Return adjacent triangles to this triangle MeshDescription.h  

TArray< FTriangleID, Alloc > GetTriangleAdjacentTriangles ( const FTriangleID TriangleID
) const

 Return adjacent triangles into a TArray with the specified allocator MeshDescription.h  

float GetTriangleCornerAngleForVertex ( const FTriangleID TriangleID,
const FVertexID VertexID
) const

   MeshDescription.h  

void GetTriangleEdges ( const FTriangleID TriangleID,
TArrayView< FEdgeID > OutEdgeIDs
) const

 Populates the passed array with the edges which define this triangle MeshDescription.h  

TArrayView< FEdgeID > GetTriangleEdges ( const FTriangleID TriangleID
) const

 Return the edges which form this triangle MeshDescription.h  

FPolygonID GetTrianglePolygon ( const FTriangleID TriangleID
) const

 Get the polygon which contains this triangle MeshDescription.h  

FPolygonGroupID GetTrianglePolygonGroup ( const FTriangleID TriangleID
) const

 Get the polygon group which contains this triangle MeshDescription.h  

TArrayView< FUVID > GetTriangleUVIndices ( const FTriangleID TriangleID,
int32 UVChannel
) const

 Return UV indices for this triangle for the given channel MeshDescription.h  

FVertexInstanceID GetTriangleVertexInstance ( const FTriangleID TriangleID,
const int32 Index
) const

 Get the specified vertex instance by index MeshDescription.h  

TArrayView< const FVertexInstanceID > GetTriangleVertexInstances ( const FTriangleID TriangleID
) const

 Get the vertex instances which define this triangle MeshDescription.h  

TArrayView< const FVertexID > GetTriangleVertices ( const FTriangleID TriangleID
) const

 Return the vertices which define this triangle MeshDescription.h  

void GetTriangleVertices ( const FTriangleID TriangleID,
TArrayView< FVertexID > OutVertexIDs
) const

 Populates the passed array with the vertices which define this triangle MeshDescription.h  

TArray< FVertexID > GetVertexAdjacentVertices ( const FVertexID VertexID
) const

 Returns the vertices adjacent to this vertex MeshDescription.h  

TArray< FVertexID, Alloc > GetVertexAdjacentVertices ( const FVertexID VertexID
) const

 Returns the vertices adjacent to this vertex as an array with the specified allocator template type. MeshDescription.h  

void GetVertexAdjacentVertices ( const FVertexID VertexID,
TArray< FVertexID, Alloc >& OutAdjacentVertexIDs
) const

 Populates the passed array of VertexIDs with the vertices adjacent to this vertex MeshDescription.h  

TArrayView< const FEdgeID > GetVertexConnectedEdgeIDs ( const FVertexID VertexID
) const

 Returns reference to an array of Edge IDs connected to this vertex MeshDescription.h  

TArray< FEdgeID > GetVertexConnectedEdges ( const FVertexID VertexID
) const

   MeshDescription.h  

TArray< FPolygonID, Alloc > GetVertexConnectedPolygons ( const FVertexID VertexID
) const

 Returns the polygons connected to this vertex as an array with the specified allocator template type. MeshDescription.h  
Returns the polygons connected to this vertex MeshDescription.h  

void GetVertexConnectedPolygons ( const FVertexID VertexID,
TArray< FPolygonID, Alloc >& OutConnectedPolygonIDs
) const

 Populates the passed array of PolygonIDs with the polygons connected to this vertex MeshDescription.h  

void GetVertexConnectedTriangles ( const FVertexID VertexID,
TArray< FTriangleID, Alloc >& OutConnectedTriangleIDs
) const

 Populates the passed array of TriangleIDs with the triangles connected to this vertex MeshDescription.h  
Returns the triangles connected to this vertex MeshDescription.h  

TArray< FTriangleID, Alloc > GetVertexConnectedTriangles ( const FVertexID VertexID
) const

 Returns the triangles connected to this vertex as an array with the specified allocator template type. MeshDescription.h  

void GetVertexInstanceConnectedPolygons ( const FVertexInstanceID VertexInstanceID,
TArray< FPolygonID, Alloc >& OutPolygonIDs
) const

 Populates the passed array with the polygons connected to this vertex instance MeshDescription.h  

TArray< FPolygonID, Alloc > GetVertexInstanceConnectedPolygons ( const FVertexInstanceID VertexInstanceID
) const

 Returns the polygons connected to this vertex instance as an array with the specified allocator template type. MeshDescription.h  
Returns the polygons connected to this vertex instance MeshDescription.h  

TArrayView< const FTriangleID > GetVertexInstanceConnectedTriangleIDs ( const FVertexInstanceID VertexInstanceID
) const

 Returns reference to an array of Triangle IDs connected to this vertex instance MeshDescription.h  

TArray< FTriangleID > GetVertexInstanceConnectedTriangles ( const FVertexInstanceID VertexInstanceID
) const

   MeshDescription.h  

FVertexInstanceID GetVertexInstanceForPolygonVertex ( const FPolygonID PolygonID,
const FVertexID VertexID
) const

 Return the vertex instance which corresponds to the given vertex on the given polygon, or INDEX_NONE MeshDescription.h  

FVertexInstanceID GetVertexInstanceForTriangleVertex ( const FTriangleID TriangleID,
const FVertexID VertexID
) const

 Return the vertex instance which corresponds to the given vertex on the given triangle, or INDEX_NONE MeshDescription.h  

FEdgeID GetVertexInstancePairEdge ( const FVertexInstanceID VertexInstanceID0,
const FVertexInstanceID VertexInstanceID1
) const

 Returns the edge ID defined by the two given vertex instance IDs, if there is one; otherwise INDEX_NONE MeshDescription.h  

FVertexID GetVertexInstanceVertex ( const FVertexInstanceID VertexInstanceID
) const

 Returns the vertex ID associated with the given vertex instance MeshDescription.h  

FEdgeID GetVertexPairEdge ( const FVertexID VertexID0,
const FVertexID VertexID1
) const

 Returns the edge ID defined by the two given vertex IDs, if there is one; otherwise INDEX_NONE MeshDescription.h  

FVector3f GetVertexPosition ( const FVertexID VertexID
) const

 Returns the position of this vertex MeshDescription.h  

TVertexAttributesRef< const FVector3f > GetVertexPositions ()

   MeshDescription.h  

TVertexAttributesRef< FVector3f > GetVertexPositions ()

   MeshDescription.h  

TArrayView< const FVertexInstanceID > GetVertexVertexInstanceIDs ( const FVertexID VertexID
) const

 Returns reference to an array of VertexInstance IDs instanced from this vertex MeshDescription.h  

TArray< FVertexInstanceID > GetVertexVertexInstances ( const FVertexID VertexID
) const

   MeshDescription.h  

bool IsEdgeInternal ( const FEdgeID EdgeID
) const

 Determine whether a given edge is an internal edge between triangles of a polygon MeshDescription.h  

bool IsEdgeInternalToPolygon ( const FEdgeID EdgeID,
const FPolygonID PolygonID
) const

 Determine whether a given edge is an internal edge between triangles of a specific polygon MeshDescription.h  

bool IsEdgeValid ( const FEdgeID EdgeID
) const

 Returns whether the passed edge ID is valid MeshDescription.h  

bool IsEmpty()

 Return whether the mesh description is empty. MeshDescription.h  

bool IsPolygonGroupValid ( const FPolygonGroupID PolygonGroupID
) const

 Returns whether the passed polygon group ID is valid MeshDescription.h  

bool IsPolygonValid ( const FPolygonID PolygonID
) const

 Returns whether the passed polygon ID is valid MeshDescription.h  

bool IsTrianglePartOfNgon ( const FTriangleID TriangleID
) const

 Determines if this triangle is part of an n-gon MeshDescription.h  

bool IsTriangleValid ( const FTriangleID TriangleID
) const

 Returns whether the passed triangle ID is valid MeshDescription.h  

bool IsUVValid ( const FUVID UVID,
const int32 UVChannel
) const

 Returns whether the passed UV ID is valid MeshDescription.h  

bool IsVertexInstanceValid ( const FVertexInstanceID VertexInstanceID
) const

 Returns whether the passed vertex instance ID is valid MeshDescription.h  

bool IsVertexOrphaned ( const FVertexID VertexID
) const

 Returns whether a given vertex is orphaned, i.e. it doesn't form part of any polygon MeshDescription.h  

bool IsVertexValid ( const FVertexID VertexID
) const

 Returns whether the passed vertex ID is valid MeshDescription.h  

bool NeedsCompact()

 Determines if calling Compact() would perform actual compaction or not. MeshDescription.h  
  MeshDescription.h  
  MeshDescription.h  
  MeshDescription.h  
  MeshDescription.h  

FPolygonGroupArray & PolygonGroups ()

   MeshDescription.h  

const FPolygonGroupArray & PolygonGroups ()

   MeshDescription.h  

FPolygonArray & Polygons ()

   MeshDescription.h  

const FPolygonArray & Polygons ()

   MeshDescription.h  

void RebuildIndexers()

   MeshDescription.h  

void Remap ( const FElementIDRemappings& Remappings
)

 Remaps the element IDs in the mesh description according to the passed in object MeshDescription.h  

void RemapPolygonGroups ( const TMap< FPolygonGroupID, FPolygonGroupID >& Remap
)

 Remaps polygon groups according to the supplied map MeshDescription.h  

void ReserveNewEdges ( const int32 NumEdges
)

 Reserves space for this number of new edges MeshDescription.h  

void ReserveNewPolygonGroups ( const int32 NumPolygonGroups
)

 Reserves space for this number of new polygon groups MeshDescription.h  

void ReserveNewPolygons ( const int32 NumPolygons
)

 Reserves space for this number of new polygons MeshDescription.h  

void ReserveNewTriangles ( const int32 NumTriangles
)

 Reserves space for this number of new triangles MeshDescription.h  

void ReserveNewUVs ( const int32 NumUVs,
const int32 UVChannel
)

 Reserves space for this number of new UVs MeshDescription.h  

void ReserveNewVertexInstances ( const int32 NumVertexInstances
)

 Reserves space for this number of new vertex instances MeshDescription.h  

void ReserveNewVertices ( const int32 NumVertices
)

 Reserves space for this number of new vertices MeshDescription.h  

void ResetIndexers()

 Operations on all the indexers. MeshDescription.h  

void ResumeEdgeIndexing()

   MeshDescription.h  

void ResumePolygonGroupIndexing()

   MeshDescription.h  

void ResumePolygonIndexing()

   MeshDescription.h  

void ResumeUVIndexing()

   MeshDescription.h  

void ResumeVertexIndexing()

   MeshDescription.h  

void ResumeVertexInstanceIndexing()

   MeshDescription.h  

void ReverseAllPolygonFacing()

 Reverses the winding order of all polygons in the mesh MeshDescription.h  

void ReversePolygonFacing ( const FPolygonID PolygonID
)

 Reverse the winding order of the vertices of this polygon MeshDescription.h  

void ReverseTriangleFacing ( const FTriangleID TriangleID
)

 Reverse the winding order of the vertices of this triangle MeshDescription.h  

void Serialize ( FArchive& Ar
)

 Serialize the mesh description. MeshDescription.h  

void SerializeLegacy ( FArchive& Ar
)

 Legacy serialization for old assets. MeshDescription.h  

void SetNumUVChannels ( const int32 NumUVChannels
)

 Sets the specified number of UV channels MeshDescription.h  

void SetPolygonPolygonGroup ( const FPolygonID PolygonID,
const FPolygonGroupID PolygonGroupID
)

 Sets the polygon group associated with a polygon MeshDescription.h  

void SetPolygonVertexInstance ( const FPolygonID PolygonID,
const int32 PerimeterIndex,
const FVertexInstanceID VertexInstanceID
)

 Set the vertex instance at the given index around the polygon to the new value MeshDescription.h  

void SetPolygonVertexInstances ( const FPolygonID PolygonID,
TArrayView< const FVertexInstanceID > VertexInstanceIDs
)

   MeshDescription.h  

void SetTriangleUVIndices ( const FTriangleID TriangleID,
TArrayView< const FUVID > UVIDs,
int32 UVChannel
)

 Set the UV indices for this triangle MeshDescription.h  

void SplitPolygon ( FPolygonID PolygonID
)

   MeshDescription.h  

void SuspendEdgeIndexing()

   MeshDescription.h  

void SuspendPolygonGroupIndexing()

   MeshDescription.h  

void SuspendPolygonIndexing()

   MeshDescription.h  

void SuspendUVIndexing()

   MeshDescription.h  

void SuspendVertexIndexing()

   MeshDescription.h  

void SuspendVertexInstanceIndexing()

   MeshDescription.h  

void TransferPolygonGroup ( FPolygonGroupID SourceID,
FPolygonGroupID DestinationID
)

 Transfer the source polygon group data to the destination polygon group. MeshDescription.h  
  MeshDescription.h  
  MeshDescription.h  

FTriangleArray & Triangles ()

   MeshDescription.h  

const FTriangleArray & Triangles ()

   MeshDescription.h  

void TriangulateMesh()

 Retriangulates the entire mesh MeshDescription.h  

TAttributesSet< FUVID > & UVAttributes ( int32 Index
)

   MeshDescription.h  

const TAttributesSet< FUVID > & UVAttributes ( int32 Index
) const

   MeshDescription.h  

const FUVArray & UVs ( int32 Index
) const

   MeshDescription.h  

FUVArray & UVs ( int32 Index
)

   MeshDescription.h  
  MeshDescription.h  
  MeshDescription.h  
  MeshDescription.h  
  MeshDescription.h  

FVertexInstanceArray & VertexInstances ()

   MeshDescription.h  

const FVertexInstanceArray & VertexInstances ()

   MeshDescription.h  

FVertexArray & Vertices ()

   MeshDescription.h  

const FVertexArray & Vertices ()

   MeshDescription.h  

Operators

Name Remarks Include Path Unreal Specifiers
  MeshDescription.h  
  MeshDescription.h  

Ask questions and help your peers Developer Forums

Write your own tutorials or read those from others Learning Library

On this page