Stores parameters of bounding volume hierarchy (BVH). Bounding volume hierarchy (BVH) organizes geometric objects in the tree based on spatial relationships. Each node in the tree contains an axis-aligned bounding box of all the objects below it. Bounding volume hierarchies are used in many algorithms to support efficient operations on the sets of geometric objects, such as collision detection, ray-tracing, searching of nearest objects, and view frustum culling. More...

#include <BVH_Tree.hxx>

Inheritance diagram for BVH_TreeBase< T, N >:

[legend]

Public Types
custom data types
typedef BVH_Box< T, N >::BVH_VecNt	BVH_VecNt

Public Member Functions
general methods
	BVH_TreeBase ()
	Creates new empty BVH tree. More...

virtual	~BVH_TreeBase ()
	Releases resources of BVH tree. More...

int	Depth () const
	Returns depth (height) of BVH tree. More...

int	Length () const
	Returns total number of BVH tree nodes. More...

methods for accessing individual nodes
BVH_VecNt &	MinPoint (const int theNodeIndex)
	Returns minimum point of the given node. More...

BVH_VecNt &	MaxPoint (const int theNodeIndex)
	Returns maximum point of the given node. More...

const BVH_VecNt &	MinPoint (const int theNodeIndex) const
	Returns minimum point of the given node. More...

const BVH_VecNt &	MaxPoint (const int theNodeIndex) const
	Returns maximum point of the given node. More...

int &	BegPrimitive (const int theNodeIndex)
	Returns index of first primitive of the given leaf node. More...

int &	EndPrimitive (const int theNodeIndex)
	Returns index of last primitive of the given leaf node. More...

int	BegPrimitive (const int theNodeIndex) const
	Returns index of first primitive of the given leaf node. More...

int	EndPrimitive (const int theNodeIndex) const
	Returns index of last primitive of the given leaf node. More...

int	NbPrimitives (const int theNodeIndex) const
	Returns number of primitives in the given leaf node. More...

int &	Level (const int theNodeIndex)
	Returns level (depth) of the given node. More...

int	Level (const int theNodeIndex) const
	Returns level (depth) of the given node. More...

bool	IsOuter (const int theNodeIndex) const
	Checks whether the given node is outer. More...

methods for accessing serialized tree data
BVH_Array4i &	NodeInfoBuffer ()
	Returns array of node data records. More...

const BVH_Array4i &	NodeInfoBuffer () const
	Returns array of node data records. More...

BVH::ArrayType< T, N >::Type &	MinPointBuffer ()
	Returns array of node minimum points. More...

BVH::ArrayType< T, N >::Type &	MaxPointBuffer ()
	Returns array of node maximum points. More...

const BVH::ArrayType< T, N >::Type &	MinPointBuffer () const
	Returns array of node minimum points. More...

const BVH::ArrayType< T, N >::Type &	MaxPointBuffer () const
	Returns array of node maximum points. More...

Data Fields
protected fields
BVH_Array4i	myNodeInfoBuffer
	Array of node data records. More...

BVH::ArrayType< T, N >::Type	myMinPointBuffer
	Array of node minimum points. More...

BVH::ArrayType< T, N >::Type	myMaxPointBuffer
	Array of node maximum points. More...

int	myDepth
	Current depth of BVH tree (set by builder). More...

Detailed Description

template<class T, int N>
class BVH_TreeBase< T, N >

Stores parameters of bounding volume hierarchy (BVH). Bounding volume hierarchy (BVH) organizes geometric objects in the tree based on spatial relationships. Each node in the tree contains an axis-aligned bounding box of all the objects below it. Bounding volume hierarchies are used in many algorithms to support efficient operations on the sets of geometric objects, such as collision detection, ray-tracing, searching of nearest objects, and view frustum culling.

Member Typedef Documentation

template<class T, int N>

typedef BVH_Box<T, N>::BVH_VecNt BVH_TreeBase< T, N >::BVH_VecNt

Constructor & Destructor Documentation

template<class T, int N>

BVH_TreeBase< T, N >::BVH_TreeBase ( )

inline

Creates new empty BVH tree.

template<class T, int N>

virtual BVH_TreeBase< T, N >::~BVH_TreeBase ( )

virtual

Releases resources of BVH tree.

Member Function Documentation

template<class T, int N>

int& BVH_TreeBase< T, N >::BegPrimitive ( const int theNodeIndex )

inline

Returns index of first primitive of the given leaf node.

template<class T, int N>

int BVH_TreeBase< T, N >::BegPrimitive ( const int theNodeIndex ) const

inline

Returns index of first primitive of the given leaf node.

template<class T, int N>

int BVH_TreeBase< T, N >::Depth ( ) const

inline

Returns depth (height) of BVH tree.

template<class T, int N>

int& BVH_TreeBase< T, N >::EndPrimitive ( const int theNodeIndex )

inline

Returns index of last primitive of the given leaf node.

template<class T, int N>

int BVH_TreeBase< T, N >::EndPrimitive ( const int theNodeIndex ) const

inline

Returns index of last primitive of the given leaf node.

template<class T, int N>

bool BVH_TreeBase< T, N >::IsOuter ( const int theNodeIndex ) const

inline

Checks whether the given node is outer.

template<class T, int N>

int BVH_TreeBase< T, N >::Length ( void ) const

inline

Returns total number of BVH tree nodes.

template<class T, int N>

int& BVH_TreeBase< T, N >::Level ( const int theNodeIndex )

inline

Returns level (depth) of the given node.

template<class T, int N>

int BVH_TreeBase< T, N >::Level ( const int theNodeIndex ) const

inline

Returns level (depth) of the given node.

template<class T, int N>

BVH_VecNt& BVH_TreeBase< T, N >::MaxPoint ( const int theNodeIndex )

inline

Returns maximum point of the given node.

template<class T, int N>

const BVH_VecNt& BVH_TreeBase< T, N >::MaxPoint ( const int theNodeIndex ) const

inline

Returns maximum point of the given node.

template<class T, int N>

BVH::ArrayType<T, N>::Type& BVH_TreeBase< T, N >::MaxPointBuffer ( )

inline

Returns array of node maximum points.

template<class T, int N>

const BVH::ArrayType<T, N>::Type& BVH_TreeBase< T, N >::MaxPointBuffer ( ) const

inline

Returns array of node maximum points.

template<class T, int N>

BVH_VecNt& BVH_TreeBase< T, N >::MinPoint ( const int theNodeIndex )

inline

Returns minimum point of the given node.

template<class T, int N>

const BVH_VecNt& BVH_TreeBase< T, N >::MinPoint ( const int theNodeIndex ) const

inline

Returns minimum point of the given node.

template<class T, int N>

BVH::ArrayType<T, N>::Type& BVH_TreeBase< T, N >::MinPointBuffer ( )

inline

Returns array of node minimum points.

template<class T, int N>

const BVH::ArrayType<T, N>::Type& BVH_TreeBase< T, N >::MinPointBuffer ( ) const

inline

Returns array of node minimum points.

template<class T, int N>

int BVH_TreeBase< T, N >::NbPrimitives ( const int theNodeIndex ) const

inline

Returns number of primitives in the given leaf node.

template<class T, int N>

BVH_Array4i& BVH_TreeBase< T, N >::NodeInfoBuffer ( )

inline

Returns array of node data records.

template<class T, int N>

const BVH_Array4i& BVH_TreeBase< T, N >::NodeInfoBuffer ( ) const

inline

Returns array of node data records.

Field Documentation

template<class T, int N>

int BVH_TreeBase< T, N >::myDepth

Current depth of BVH tree (set by builder).

template<class T, int N>

BVH::ArrayType<T, N>::Type BVH_TreeBase< T, N >::myMaxPointBuffer

Array of node maximum points.

template<class T, int N>

BVH::ArrayType<T, N>::Type BVH_TreeBase< T, N >::myMinPointBuffer

Array of node minimum points.

template<class T, int N>

BVH_Array4i BVH_TreeBase< T, N >::myNodeInfoBuffer

Array of node data records.

The documentation for this class was generated from the following file:

BVH_Tree.hxx

Public Types

Public Member Functions

Data Fields

Detailed Description

template<class T, int N> class BVH_TreeBase< T, N >

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Field Documentation

template<class T, int N>
class BVH_TreeBase< T, N >