FDynamicMeshAttributeSet

[FDynamicMeshAttributeSet](API\Runtime\GeometryCore\DynamicMesh\FDynamicMeshAttributeSet) manages a set of extended attributes for a [FDynamicMesh3](API\Runtime\GeometryCore\DynamicMesh\FDynamicMesh3).

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Inheritance Hierarchy

TDynamicAttributeSetBase

FDynamicMeshAttributeSet

References

Module	GeometryCore
Header	/Engine/Source/Runtime/GeometryCore/Public/DynamicMesh/DynamicMeshAttributeSet.h
Include	#include "DynamicMesh/DynamicMeshAttributeSet.h"

Syntax

class FDynamicMeshAttributeSet : public UE::Geometry::TDynamicAttributeSetBase< FDynamicMesh3 >

Remarks

FDynamicMeshAttributeSet manages a set of extended attributes for a FDynamicMesh3. This includes UV and Normal overlays, etc.

Currently the default is to always have one UV layer and one Normal layer, but the number of layers can be requested on construction.

Variables

	Name	Description
TUniquePtr< FDy...	ColorLayer
GenericAttribut...	GenericAttributes
TUniquePtr< FDy...	MaterialIDAttrib
TIndirectArray<...	NormalLayers
FDynamicMesh3 &...	ParentMesh	Parent mesh of this attribute set
TIndirectArray<...	PolygroupLayers
SkinWeightAttri...	SkinWeightAttributes
TIndirectArray<...	UVLayers

Constructors

	Name	Description
	FDynamicMeshAttributeSet ( FDynamicMesh3* Mesh )
	FDynamicMeshAttributeSet ( FDynamicMesh3* Mesh, int32 NumUVLayers, int32 NumNormalLayers )

Destructors

	Name	Description
	~FDynamicMeshAttributeSet()

Functions

	Name	Description
void	AttachAttribute ( FName AttribName, FDynamicMeshAttributeBase* Att... )	Attach a new attribute (and transfer ownership of it to the attribute set)
void	AttachSkinWeightsAttribute ( FName InProfileName, FDynamicMeshVertexSkinWeightsAttrib... )	Skin weights Create a new skin weights attribute with a given skin weights profile name.
void	CompactCopy ( const FCompactMaps& CompactMaps, const FDynamicMeshAttributeSet& Co... )	Performs a CompactCopy of the attached overlays/attributes.
void	CompactInPlace ( const FCompactMaps& CompactMaps )	Compacts the attribute set in place Called by the parent mesh CompactInPlace function
void	Copy ( const FDynamicMeshAttributeSet& Co... )
void	DisableMaterialID()
void	DisablePrimaryColors()
void	DisableTangents()	Disable Tangents overlays
void	EnableMatchingAttributes ( const FDynamicMeshAttributeSet& To... )	Enable the matching attributes and overlay layers as the reference Copy set, but do not copy any data across
void	EnableMaterialID()
void	EnablePrimaryColors()
void	EnableTangents()	Enable Tangents overlays (Tangent = Normal layer 1, Bitangent = Normal layer 2)
FDynamicMesh...	GetAttachedAttribute ( FName AttribName )
const TMap< ...	GetAttachedAttributes()
FDynamicMesh...	GetMaterialID()
const FDynam...	GetMaterialID()
const FDynam...	GetNormalLayer ( int Index )
FDynamicMesh...	GetNormalLayer ( int Index )
FDynamicMesh...	GetParentMesh()
const FDynam...	GetParentMesh()
const FDynam...	GetPolygroupLayer ( int Index )
FDynamicMesh...	GetPolygroupLayer ( int Index )
FDynamicMesh...	GetSkinWeightsAttribute ( FName InProfileName )	Returns a pointer to a skin weight attribute of the given profile name.
const TMap< ...	GetSkinWeightsAttributes()	Returns a map of all skin weight attributes.
FDynamicMesh...	GetUVLayer ( int Index )
const FDynam...	GetUVLayer ( int Index )
bool	HasAttachedAttribute ( FName AttribName )
bool	HasMaterialID()	Per-Triangle Material ID
bool	HasPrimaryColors()
bool	HasSkinWeightsAttribute ( FName InProfileName )	Returns true if the list of skin weight attributes includes the given profile name.
bool	HasTangentSpace()
void	Initialize ( int MaxVertexID, int MaxTriangleID )	Initialize the existing attribute layers with the given vertex and triangle sizes
bool	IsCompact()	Returns true if the attached overlays/attributes are compact
bool	IsMaterialBoundaryEdge ( int EdgeID )
bool	IsSameAs ( const FDynamicMeshAttributeSet& Ot..., bool bIgnoreDataLayout )	Returns true if this AttributeSet is the same as Other.
bool	IsSeamEdge ( int EdgeID )
bool	IsSeamEdge ( int EdgeID, bool& bIsUVSeamOut, bool& bIsNormalSeamOut, bool& bIsColorSeamOut )
bool	IsSeamEndEdge ( int EdgeID )
bool	IsSeamVertex ( int VertexID, bool bBoundaryIsSeam )
int	NumAttachedAttributes()
int	NumNormalLayers()	Normal Layers
int32	NumPolygroupLayers()	Polygroup layers
int	NumUVLayers()	UV Layers
const FDynam...	PrimaryBiTangents()
FDynamicMesh...	PrimaryBiTangents()
const FDynam...	PrimaryColors()
FDynamicMesh...	PrimaryColors()
const FDynam...	PrimaryNormals()
FDynamicMesh...	PrimaryNormals()
const FDynam...	PrimaryTangents()
FDynamicMesh...	PrimaryTangents()
const FDynam...	PrimaryUV()
FDynamicMesh...	PrimaryUV()
void	RemoveAttribute ( FName AttribName )
void	RemoveSkinWeightsAttribute ( FName InProfileName )	Remove a skin weights attribute matching the given profile name.
void	Serialize ( FArchive& Ar, const FCompactMaps* CompactMap..., bool bUseCompression )	Serialize to and from an archive.
void	SetNumNormalLayers ( int Num )	Set number of Normals (3-vector float overlay) layers
void	SetNumPolygroupLayers ( int32 Num )	Set the number of Polygroup layers
void	SetNumUVLayers ( int Num )	Set number of UV (2-vector float overlay) layers
void	SplitAllBowties ( bool bParallel )	Split all bowtie vertices in all layers

Overridden from TDynamicAttributeSetBase

	Name	Description
bool	CheckValidity ( bool bAllowNonmanifold, EValidityCheckFailMode FailMode )	Check validity of attributes
void	OnCollapseEdge ( const DynamicMeshInfo::FEdgeCollaps... )
void	OnFlipEdge ( const DynamicMeshInfo::FEdgeFlipInf... )
void	OnMergeEdges ( const DynamicMeshInfo::FMergeEdgesI... )
void	OnNewTriangle ( int TriangleID, bool bInserted )	These functions are called by the FDynamicMesh3 to update the various attributes when the parent mesh topology has been modified.
void	OnNewVertex ( int VertexID, bool bInserted )
void	OnPokeTriangle ( const DynamicMeshInfo::FPokeTriangl... )
void	OnRemoveTriangle ( int TriangleID )
void	OnRemoveVertex ( int VertexID )
void	OnReverseTriOrientation ( int TriangleID )
void	OnSplitEdge ( const DynamicMeshInfo::FEdgeSplitIn... )	Mesh-specific on* functions; may be split out
void	OnSplitVertex ( const DynamicMeshInfo::FVertexSplit..., const TArrayView< const int >& Tri... )

Typedefs

Name	Description
GenericAttributesMap
SkinWeightAttributesMap