Unreal Engine 4.26 Documentation

Unreal Engine 4.27 Documentation

Unreal Engine 5.0 Documentation

Unreal Engine 5.1 Documentation

Unreal Engine 5.2 Documentation

Unreal Engine 5.3 Documentation

> Unreal Engine API Reference > Plugins > ModelingComponents > Drawing > UPolyEditPreviewMesh

Light Theme

Dark Theme

UPolyEditPreviewMesh

[UPolyEditPreviewMesh](API\Plugins\ModelingComponents\Drawing\UPolyEditPreviewMesh) is a variant of [UPreviewMesh](API\Plugins\ModelingComponents\UPreviewMesh) intended for use as a 'live preview' of a mesh creation/editing operation.

Windows

MacOS

Linux

Inheritance Hierarchy

UObjectBase

UObjectBaseUtility

UObject

UPreviewMesh

UPolyEditPreviewMesh

References

Module	ModelingComponents
Header	/Engine/Plugins/Experimental/MeshModelingToolset/Source/ModelingComponents/Public/Drawing/PolyEditPreviewMesh.h
Include	#include "Drawing/PolyEditPreviewMesh.h"

Syntax

[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)(Transient)
class UPolyEditPreviewMesh : public UPreviewMesh

Remarks

UPolyEditPreviewMesh is a variant of UPreviewMesh intended for use as a 'live preview' of a mesh creation/editing operation. The class supports initializing the preview mesh in various ways, generally as a submesh of a base mesh.

Variables

		Name	Description
	TUniquePtr< FDy...	ActiveSubmesh
	bool	bHaveMeshTransform
	TArray< int32 >	EditVertices
	TMap< int32, in...	ExtrudeToInitialVerts
	FDynamicMesh3	InitialEditPatch
	FDynamicMeshAAB...	InitialEditPatchBVTree
	TArray< FVector...	InitialNormals
	TArray< FVector...	InitialPositions
	TArray< FVector...	InitialTriNormals
	FVector3d	InputDirection
	FTransform3d	MeshTransform

Functions

	Name	Description
const FDynam...	GetInitialPatchMesh()
FDynamicMesh...	GetInitialPatchMeshSpatial()	Must be non-const because query functions are non-const
void	InitializeExtrudeType ( FDynamicMesh3&& BaseMesh, const FVector3d& TransformedOffset..., const FTransform3d* MeshTransf..., bool bDeleteExtrudeBaseFaces )
void	InitializeExtrudeType ( const FDynamicMesh3* SourceMes..., const TArray< int32 >& Triangles, const FVector3d& TransformedOffset..., const FTransform3d* MeshTransf..., bool bDeleteExtrudeBaseFaces )	"Extrude Type" duplicates the input faces, offsets them using FExtrudeMesh, and stitches them together
void	InitializeInsetType ( const FDynamicMesh3* SourceMes..., const TArray< int32 >& Triangles, const FTransform3d* MeshTransf... )	"Inset Type" duplicates the input faces and insets them using FInsetMeshRegion
void	InitializeStaticType ( const FDynamicMesh3* SourceMes..., const TArray< int32 >& Triangles, const FTransform3d* MeshTransf... )	"Static Type" is just a static mesh
void	MakeExtrudeTypeHitTargetMesh ( FDynamicMesh3& TargetMesh, bool bUseNormalDirection )	Make a hit-target mesh that is an infinite extrusion along extrude direction.
void	MakeInsetTypeTargetMesh ( FDynamicMesh3& TargetMesh )
void	MakeStaticTypeTargetMesh ( FDynamicMesh3& TargetMesh )
void	UpdateExtrudeType ( double NewOffset, bool bUseNormalDirection )	Update extrude-type preview mesh by moving existing offset vertices
void	UpdateExtrudeType ( TFunctionRef< void&)..., bool bFullRecalculate )	Update extrude-type preview mesh using external function.
void	UpdateExtrudeType_FaceNormalAvg ( double NewOffset )	Update extrude-type preview mesh by moving existing offset vertices along their connected triangle normals and then averaging positions
void	UpdateInsetType ( double NewOffset, bool bReproject, double Softness, double AreaScaleT, bool bBoundaryOnly )
void	UpdateStaticType ( TFunctionRef< void&)..., bool bFullRecalculate )

Help shape the future of Unreal Engine documentation! Tell us how we're doing so we can serve you better.

Take our survey

Dismiss