UDocumentation UE5.7 10.02.2026 (Source)
API documentation for Unreal Engine 5.7
Public Member Functions | Public Attributes | List of all members
UE::Geometry::FRectangleMeshGenerator Class Reference

#include <RectangleMeshGenerator.h>

+ Inheritance diagram for UE::Geometry::FRectangleMeshGenerator:

Public Member Functions

GEOMETRYCORE_API FRectangleMeshGenerator ()
 
virtual GEOMETRYCORE_API FMeshShapeGenerator & Generate () override
 
virtual FVector3d MakeVertex (int CornerIndex, double x, double y)
 
- Public Member Functions inherited from UE::Geometry::FMeshShapeGenerator
virtual ~FMeshShapeGenerator ()
 
bool HasAttributes () const
 
void ResetAttributes (bool bResetPolygonIDs=false)
 
void Reset ()
 
void SetBufferSizes (int NumVertices, int NumTriangles, int NumUVs, int NumNormals)
 
void ExtendBufferSizes (int AddVertices, int AddTriangles, int AddUVs, int AddNormals)
 
void SetVertex (int Index, const FVector3d &Position)
 
int AppendVertex (const FVector3d &Position)
 
void SetUV (int Index, const FVector2f &UV, int ParentVertex)
 
int AppendUV (const FVector2f &UV, int ParentVertex)
 
void SetNormal (int Index, const FVector3f &Normal, int ParentVertex)
 
int AppendNormal (const FVector3f &Normal, int ParentVertex)
 
void SetTriangle (int Index, const FIndex3i &Tri)
 
void SetTriangle (int Index, int A, int B, int C)
 
void SetTriangle (int Index, int A, int B, int C, bool bClockwiseOverride)
 
int AppendTriangle (int A, int B, int C)
 
void SetTriangleUVs (int Index, const FIndex3i &Tri)
 
void SetTriangleUVs (int Index, int A, int B, int C)
 
void SetTriangleUVs (int Index, int A, int B, int C, bool bClockwiseOverride)
 
void SetTriangleNormals (int Index, const FIndex3i &Tri)
 
void SetTriangleNormals (int Index, int A, int B, int C)
 
void SetTriangleNormals (int Index, int A, int B, int C, bool bClockwiseOverride)
 
void SetTrianglePolygon (int Index, int PolygonID)
 
void SetTriangleWithMatchedUVNormal (int Index, int A, int B, int C)
 

Public Attributes

FVector3d Origin
 
FVector3f Normal
 
double Width
 
double Height
 
int WidthVertexCount
 
int HeightVertexCount
 
bool bScaleUVByAspectRatio = true
 
bool bSinglePolyGroup = false
 
FIndex2i IndicesMap
 
- Public Attributes inherited from UE::Geometry::FMeshShapeGenerator
TArray< FVector3d > Vertices
 
TArray< FVector2f > UVs
 
TArray< int > UVParentVertex
 
TArray< FVector3f > Normals
 
TArray< int > NormalParentVertex
 
TArray< FIndex3i > Triangles
 
TArray< FIndex3i > TriangleUVs
 
TArray< FIndex3i > TriangleNormals
 
TArray< int > TrianglePolygonIDs
 
bool bReverseOrientation = false
 

Additional Inherited Members

- Static Public Member Functions inherited from UE::Geometry::FMeshShapeGenerator
static FVector3d BilinearInterp (const FVector3d &v00, const FVector3d &v10, const FVector3d &v11, const FVector3d &v01, double tx, double ty)
 
static FVector2d BilinearInterp (const FVector2d &v00, const FVector2d &v10, const FVector2d &v11, const FVector2d &v01, double tx, double ty)
 
static FVector2f BilinearInterp (const FVector2f &v00, const FVector2f &v10, const FVector2f &v11, const FVector2f &v01, float tx, float ty)
 
static FVector3i LinearInterp (const FVector3i &a, const FVector3i &b, double t)
 

Detailed Description

Generate planar rectangular mesh with variable number of subdivisions along width and height. By default, center of rectangle is centered at (0,0,0) origin

Constructor & Destructor Documentation

◆ FRectangleMeshGenerator()

FRectangleMeshGenerator::FRectangleMeshGenerator ( )

Member Function Documentation

◆ Generate()

FMeshShapeGenerator & FRectangleMeshGenerator::Generate ( )
overridevirtual

Generate the mesh

Implements UE::Geometry::FMeshShapeGenerator.

Reimplemented in UE::Geometry::FRoundedRectangleMeshGenerator.

◆ MakeVertex()

virtual FVector3d UE::Geometry::FRectangleMeshGenerator::MakeVertex ( int  CornerIndex,
double  x,
double  y 
)
inlinevirtual

Create vertex at position under IndicesMap, shifted to Origin

Member Data Documentation

◆ bScaleUVByAspectRatio

bool UE::Geometry::FRectangleMeshGenerator::bScaleUVByAspectRatio = true

If true (default), UVs are scaled so that there is no stretching. If false, UVs are scaled to fill unit square

◆ bSinglePolyGroup

bool UE::Geometry::FRectangleMeshGenerator::bSinglePolyGroup = false

If true, output mesh has a single polygroup, otherwise each quad gets a separate group

◆ Height

double UE::Geometry::FRectangleMeshGenerator::Height

Height of rectangle

◆ HeightVertexCount

int UE::Geometry::FRectangleMeshGenerator::HeightVertexCount

Number of vertices along Height axis

◆ IndicesMap

FIndex2i UE::Geometry::FRectangleMeshGenerator::IndicesMap

Specifies how 2D indices are mapped to 3D points. Default is (0,1) = (x,y,0).

◆ Normal

FVector3f UE::Geometry::FRectangleMeshGenerator::Normal

Normal vector of all vertices will be set to this value. Default is +Z axis.

◆ Origin

FVector3d UE::Geometry::FRectangleMeshGenerator::Origin

Rectangle will be translated so that center is at this point

◆ Width

double UE::Geometry::FRectangleMeshGenerator::Width

Width of rectangle

◆ WidthVertexCount

int UE::Geometry::FRectangleMeshGenerator::WidthVertexCount

Number of vertices along Width axis

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