BVH Namespace Reference

Data Structures
struct	Array
	Tool class providing typical operations on the array. It allows for interoperability between STD vector and NCollection vector. More...
struct	ArrayType
	Tool class for selecting type of array of vectors (STD or NCollection vector). More...
struct	BitComparator
	STL compare tool used in binary search algorithm. More...
struct	BitPredicate
struct	BoundData
struct	BoxMinMax
	Tool class for calculate component-wise vector minimum and maximum (optimized version). More...
struct	BoxMinMax< T, 2 >
struct	BVH_AxisSelector
struct	BVH_AxisSelector< T, 2 >
struct	CenterAxis
	Tool class for calculating box center along the given axis. More...
struct	CenterAxis< T, 2 >
struct	CenterAxis< T, 3 >
struct	CenterAxis< T, 4 >
struct	MatrixOp
struct	MatrixOp< T, 4 >
struct	MatrixType
	Tool class for selecting appropriate matrix type (Eigen or NCollection). More...
struct	MatrixType< T, 4 >
class	RadixSorter
	Tool object for sorting link array using radix sort algorithm. More...
struct	SurfaceCalculator
	Tool class for calculating surface area of the box. More...
struct	SurfaceCalculator< T, 2 >
struct	SurfaceCalculator< T, 3 >
struct	SurfaceCalculator< T, 4 >
struct	UnitVector
struct	UnitVector< T, 2 >
struct	UnitVector< T, 3 >
struct	UnitVector< T, 4 >
class	UpdateBoundTask
	Task for parallel bounds updating. More...
struct	VecComp
	Tool class for accessing specific vector component (by index). More...
struct	VecComp< T, 2 >
struct	VecComp< T, 3 >
struct	VecComp< T, 4 >
struct	VectorType
	Tool class for selecting appropriate vector type (Eigen or NCollection). More...
struct	VectorType< T, 1 >
struct	VectorType< T, 2 >
struct	VectorType< T, 3 >
struct	VectorType< T, 4 >

Functions
template<class T , int N>
Standard_Integer	UpdateBounds (BVH_Set< T, N > *theSet, BVH_Tree< T, N > *theTree, const Standard_Integer theNode=0)
	Calculates bounding boxes (AABBs) for the given BVH tree.
template<class T , int N>
Standard_Integer	SplitPrimitives (BVH_Set< T, N > *theSet, const BVH_Box< T, N > &theBox, const Standard_Integer theBeg, const Standard_Integer theEnd, const Standard_Integer theBin, const Standard_Integer theAxis, const Standard_Integer theBins)
template<class T >
Bnd_Box	ToBndBox (const T &theMin, const T &theMax)
template<class T >
Bnd_Box	ToBndBox (const NCollection_Vec2< T > &theMin, const NCollection_Vec2< T > &theMax)
template<class T >
Bnd_Box	ToBndBox (const NCollection_Vec3< T > &theMin, const NCollection_Vec3< T > &theMax)
template<class T >
Bnd_Box	ToBndBox (const NCollection_Vec4< T > &theMin, const NCollection_Vec4< T > &theMax)
template<class T , int N>
void	EstimateSAH (const BVH_Tree< T, N, BVH_BinaryTree > *theTree, const int theNode, T theProb, T &theSAH)
	Internal function for recursive calculation of surface area heuristic (SAH) of the given tree.

Variables
const double	THE_NODE_MIN_SIZE = 1e-5
	Minimum node size to split.

Function Documentation

EstimateSAH()

template<class T , int N>

void BVH::EstimateSAH	(	const BVH_Tree< T, N, BVH_BinaryTree > *	theTree,
		const int	theNode,
		T	theProb,
		T &	theSAH
	)

Internal function for recursive calculation of surface area heuristic (SAH) of the given tree.

SplitPrimitives()

template<class T , int N>

Standard_Integer BVH::SplitPrimitives	(	BVH_Set< T, N > *	theSet,
		const BVH_Box< T, N > &	theBox,
		const Standard_Integer	theBeg,
		const Standard_Integer	theEnd,
		const Standard_Integer	theBin,
		const Standard_Integer	theAxis,
		const Standard_Integer	theBins
	)

ToBndBox() [1/4]

template<class T >

Bnd_Box BVH::ToBndBox	(	const NCollection_Vec2< T > &	theMin,
		const NCollection_Vec2< T > &	theMax
	)

ToBndBox() [2/4]

template<class T >

Bnd_Box BVH::ToBndBox	(	const NCollection_Vec3< T > &	theMin,
		const NCollection_Vec3< T > &	theMax
	)

ToBndBox() [3/4]

template<class T >

Bnd_Box BVH::ToBndBox	(	const NCollection_Vec4< T > &	theMin,
		const NCollection_Vec4< T > &	theMax
	)

ToBndBox() [4/4]

template<class T >

Bnd_Box BVH::ToBndBox	(	const T &	theMin,
		const T &	theMax
	)

UpdateBounds()

template<class T , int N>

Standard_Integer BVH::UpdateBounds ( BVH_Set< T, N > *  theSet, BVH_Tree< T, N > *  theTree, const Standard_Integer  theNode = 0  )

protected

Calculates bounding boxes (AABBs) for the given BVH tree.

Variable Documentation

THE_NODE_MIN_SIZE

const double BVH::THE_NODE_MIN_SIZE = 1e-5

Minimum node size to split.