TAttrBasedQuadricError | Unreal Engine 5.2 Documentation

API > API/Runtime > API/Runtime/GeometryCore

Inheritance Hierarchy

TQuadricError
TVolPresQuadricError
TAttrBasedQuadricError

References


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

Syntax

template<typename RealType>  
class TAttrBasedQuadricError : public UE::Geometry::TVolPresQuadricError< RealType >

Remarks

Quadric Error type for use in volume memory-less simplification with volume preservation constraints. using the normal as three additional attributes to contribute to the quadric error. See: http://hhoppe.com/newqem.pdf

Variables

Type	Name	Description
RealType	a	Accumulated area
RealType	attrweight	Weight used to internally scale the attribute/ used to increase or decrease the importance of the normal in computing the optimal position
RealType[3]	d
TVector< RealType >[3]	grad	Additional planes for the attributes.

Constructors

	Type	Name	Description
		TAttrBasedQuadricError ()
		TAttrBasedQuadricError ( const TAttrBasedQuadricError& Aother, const TAttrBasedQuadricError& Bother )
		TAttrBasedQuadricError ( const TVector< RealType >& P0, const TVector< RealType >& P1, const TVector< RealType >& P2, const TVector< RealType >& N0, const TVector< RealType >& N1, const TVector< RealType >& N2, const TVector< RealType >& NFace, const TVector< RealType >& CenterPoint, RealType AttrWeight )	Triangle Quadric constructor. Take vertex locations, vertex normals, face normal, and center of face.

Functions

Type	Name	Description
void	Add ( RealType w, const TAttrBasedQuadricError& other )	Area Weighted Add
void	ComputeAttributes ( const TVector< RealType >& point, TVector< RealType >& attr )
RealType	Evaluate ( const TVector< RealType >& point )
RealType	Evaluate ( const TVector< RealType >& point, const TVector< RealType >& InAttr )
bool	OptimalPoint ( UE::Math::TVector< RealType >& OptPoint, RealType minThresh )	The optimal point minimizing the quadric error with respect to a volume conserving constraint
TAttrBasedQuadricError	Zero ()

Typedefs

Name	Description
BaseClass
BaseStruct
ScalarType

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