AABBTreeBuilder Class Reference

#include <OPC_TreeBuilders.h>

Inheritance diagram for AABBTreeBuilder:

List of all members.

Public Member Functions
	AABBTreeBuilder ()
	Constructor.
virtual bool	ComputeGlobalBox (const udword *primitives, udword nb_prims, AABB &global_box) const =0
inline_ udword	GetCount () const
inline_ udword	GetNbInvalidSplits () const
virtual float	GetSplittingValue (udword index, udword axis) const =0
virtual float	GetSplittingValue (const udword *primitives, udword nb_prims, const AABB &global_box, udword axis) const
inline_ void	IncreaseCount (udword nb)
inline_ void	IncreaseNbInvalidSplits ()
inline_ void	SetCount (udword nb)
inline_ void	SetNbInvalidSplits (udword nb)
virtual BOOL	ValidateSubdivision (const udword *primitives, udword nb_prims, const AABB &global_box)
virtual	~AABBTreeBuilder ()
	Destructor.
Public Attributes
udword	mNbPrimitives
	Total number of primitives.
void *	mNodeBase
	Address of node pool [Opcode 1.3].
BuildSettings	mSettings
	Splitting rules & split limit [Opcode 1.3].
Private Attributes
udword	mCount
	Stats: number of nodes created.
udword	mNbInvalidSplits
	Stats: number of invalid splits.

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Detailed Description

Definition at line 47 of file OPC_TreeBuilders.h.

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Constructor & Destructor Documentation

AABBTreeBuilder::AABBTreeBuilder

(

)

[inline]

Constructor.

Definition at line 51 of file OPC_TreeBuilders.h.

virtual AABBTreeBuilder::~AABBTreeBuilder

(

)

[inline, virtual]

Destructor.

Definition at line 57 of file OPC_TreeBuilders.h.

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Member Function Documentation

virtual bool AABBTreeBuilder::ComputeGlobalBox	(	const udword *	primitives,
		udword	nb_prims,
		AABB &	global_box
	)		const [pure virtual]

Computes the AABB of a set of primitives.

Parameters:

primitives	[in] list of indices of primitives
nb_prims	[in] number of indices
global_box	[out] global AABB enclosing the set of input primitives

Returns:

true if success

inline_ udword AABBTreeBuilder::GetCount

(

)

const [inline]

Definition at line 119 of file OPC_TreeBuilders.h.

inline_ udword AABBTreeBuilder::GetNbInvalidSplits

(

)

const [inline]

Definition at line 122 of file OPC_TreeBuilders.h.

virtual float AABBTreeBuilder::GetSplittingValue	(	udword	index,
		udword	axis
	)		const [pure virtual]

Computes the splitting value along a given axis for a given primitive.

Parameters:

index	[in] index of the primitive to split
axis	[in] axis index (0,1,2)

Returns:

splitting value

virtual float AABBTreeBuilder::GetSplittingValue	(	const udword *	primitives,
		udword	nb_prims,
		const AABB &	global_box,
		udword	axis
	)		const [inline, virtual]

Computes the splitting value along a given axis for a given node.

Parameters:

primitives	[in] list of indices of primitives
nb_prims	[in] number of indices
global_box	[in] global AABB enclosing the set of input primitives
axis	[in] axis index (0,1,2)

Returns:

splitting value

Definition at line 90 of file OPC_TreeBuilders.h.

inline_ void AABBTreeBuilder::IncreaseCount

(

udword

nb

)

[inline]

Definition at line 118 of file OPC_TreeBuilders.h.

inline_ void AABBTreeBuilder::IncreaseNbInvalidSplits

(

)

[inline]

Definition at line 121 of file OPC_TreeBuilders.h.

inline_ void AABBTreeBuilder::SetCount

(

udword

nb

)

[inline]

Definition at line 117 of file OPC_TreeBuilders.h.

inline_ void AABBTreeBuilder::SetNbInvalidSplits

(

udword

nb

)

[inline]

Definition at line 120 of file OPC_TreeBuilders.h.

virtual BOOL AABBTreeBuilder::ValidateSubdivision	(	const udword *	primitives,
		udword	nb_prims,
		const AABB &	global_box
	)		[inline, virtual]

Validates node subdivision. This is called each time a node is considered for subdivision, during tree building.

Parameters:

primitives	[in] list of indices of primitives
nb_prims	[in] number of indices
global_box	[in] global AABB enclosing the set of input primitives

Returns:

TRUE if the node should be subdivised

Definition at line 105 of file OPC_TreeBuilders.h.

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Member Data Documentation

udword AABBTreeBuilder::mCount [private]

Stats: number of nodes created.

Definition at line 125 of file OPC_TreeBuilders.h.

udword AABBTreeBuilder::mNbInvalidSplits [private]

Stats: number of invalid splits.

Definition at line 126 of file OPC_TreeBuilders.h.

udword AABBTreeBuilder::mNbPrimitives

Total number of primitives.

Definition at line 114 of file OPC_TreeBuilders.h.

void* AABBTreeBuilder::mNodeBase

Address of node pool [Opcode 1.3].

Definition at line 115 of file OPC_TreeBuilders.h.

BuildSettings AABBTreeBuilder::mSettings

Splitting rules & split limit [Opcode 1.3].

Definition at line 113 of file OPC_TreeBuilders.h.

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

• OPC_TreeBuilders.h