FastTriWinding Namespace Reference

Typedefs
using	FTriangle3d = UE::Geometry::FTriangle3d
using	FMatrix3d = UE::Geometry::FMatrix3d

Functions
template<class TriangleMeshType , class IterableTriangleIndices >
void	ComputeCoeffsSerial (const TriangleMeshType &Mesh, const IterableTriangleIndices &Triangles, const FMeshTriInfoCache &TriCache, FVector3d &P, double &R, FVector3d &Order1, FMatrix3d &Order2)
template<class TriangleMeshType >
void	ComputeCoeffs (const TriangleMeshType &Mesh, const TArray< int > &TriangleArray, const FMeshTriInfoCache &TriCache, FVector3d &P, double &R, FVector3d &Order1, FMatrix3d &Order2, int NumTasks=16)
template<class TriangleMeshType >
void	ComputeCoeffs (const TriangleMeshType &Mesh, const TSet< int > &TriangleSet, const FMeshTriInfoCache &TriCache, FVector3d &P, double &R, FVector3d &Order1, FMatrix3d &Order2, int NumTasks=16)
double	EvaluateOrder1Approx (const FVector3d &Center, const FVector3d &Order1Coeff, const FVector3d &Q)
double	EvaluateOrder2Approx (const FVector3d &Center, const FVector3d &Order1Coeff, const FMatrix3d &Order2Coeff, const FVector3d &Q)
double	Order1Approx (const FTriangle3d &T, const FVector3d &P, const FVector3d &XN, double XA, const FVector3d &Q)
double	Order2Approx (const FTriangle3d &T, const FVector3d &P, const FVector3d &XN, double XA, const FVector3d &Q)

Detailed Description

Formulas for triangle winding number approximation

Typedef Documentation

FMatrix3d

using FastTriWinding::FMatrix3d = typedef UE::Geometry::FMatrix3d

FTriangle3d

using FastTriWinding::FTriangle3d = typedef UE::Geometry::FTriangle3d

Function Documentation

ComputeCoeffs() [1/2]

template<class TriangleMeshType >

void FastTriWinding::ComputeCoeffs	(	const TriangleMeshType &	Mesh,
		const TArray< int > &	TriangleArray,
		const FMeshTriInfoCache &	TriCache,
		FVector3d &	P,
		double &	R,
		FVector3d &	Order1,
		FMatrix3d &	Order2,
		int	NumTasks = 16
	)

precompute constant coefficients of triangle winding number approximation (evaluated in parallel for large sets of triangles) P: 'Center' of expansion for Triangles (area-weighted centroid avg) R: max distance from P to Triangles Order1: first-order vector coeff Order2: second-order matrix coeff TriCache: precomputed triangle centroid/normal/area

ComputeCoeffs() [2/2]

template<class TriangleMeshType >

void FastTriWinding::ComputeCoeffs	(	const TriangleMeshType &	Mesh,
		const TSet< int > &	TriangleSet,
		const FMeshTriInfoCache &	TriCache,
		FVector3d &	P,
		double &	R,
		FVector3d &	Order1,
		FMatrix3d &	Order2,
		int	NumTasks = 16
	)

precompute constant coefficients of triangle winding number approximation (evaluated in parallel for large sets of triangles) P: 'Center' of expansion for Triangles (area-weighted centroid avg) R: max distance from P to Triangles Order1: first-order vector coeff Order2: second-order matrix coeff TriCache: precomputed triangle centroid/normal/area

ComputeCoeffsSerial()

template<class TriangleMeshType , class IterableTriangleIndices >

void FastTriWinding::ComputeCoeffsSerial	(	const TriangleMeshType &	Mesh,
		const IterableTriangleIndices &	Triangles,
		const FMeshTriInfoCache &	TriCache,
		FVector3d &	P,
		double &	R,
		FVector3d &	Order1,
		FMatrix3d &	Order2
	)

precompute constant coefficients of triangle winding number approximation (serial implementation) P: 'Center' of expansion for Triangles (area-weighted centroid avg) R: max distance from P to Triangles Order1: first-order vector coeff Order2: second-order matrix coeff TriCache: precomputed triangle centroid/normal/area

EvaluateOrder1Approx()

double FastTriWinding::EvaluateOrder1Approx ( const FVector3d &  Center, const FVector3d &  Order1Coeff, const FVector3d &  Q  )

inline

Evaluate first-order FWN approximation at point Q, relative to Center c

EvaluateOrder2Approx()

double FastTriWinding::EvaluateOrder2Approx ( const FVector3d &  Center, const FVector3d &  Order1Coeff, const FMatrix3d &  Order2Coeff, const FVector3d &  Q  )

inline

Evaluate second-order FWN approximation at point Q, relative to Center c

Order1Approx()

double FastTriWinding::Order1Approx ( const FTriangle3d &  T, const FVector3d &  P, const FVector3d &  XN, double  XA, const FVector3d &  Q  )

inline

Order2Approx()

double FastTriWinding::Order2Approx ( const FTriangle3d &  T, const FVector3d &  P, const FVector3d &  XN, double  XA, const FVector3d &  Q  )

inline