The btDbvtBroadphase implements a broadphase using two dynamic AABB bounding volume hierarchies/trees (see btDbvt). More...

#include <btDbvtBroadphase.h>

Inheritance diagram for btDbvtBroadphase:

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Collaboration diagram for btDbvtBroadphase:

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Public Types
enum	{ DYNAMIC_SET = 0, FIXED_SET = 1, STAGECOUNT = 2 }

Public Member Functions
	btDbvtBroadphase (btOverlappingPairCache *paircache=0)

	~btDbvtBroadphase ()

void	collide (btDispatcher *dispatcher)

void	optimize ()

btBroadphaseProxy *	createProxy (const btVector3 &aabbMin, const btVector3 &aabbMax, int shapeType, void userPtr, short int collisionFilterGroup, short int collisionFilterMask, btDispatcher dispatcher, void *multiSapProxy)

virtual void	destroyProxy (btBroadphaseProxy proxy, btDispatcher dispatcher)

virtual void	setAabb (btBroadphaseProxy proxy, const btVector3 &aabbMin, const btVector3 &aabbMax, btDispatcher dispatcher)

virtual void	rayTest (const btVector3 &rayFrom, const btVector3 &rayTo, btBroadphaseRayCallback &rayCallback, const btVector3 &aabbMin=btVector3(0, 0, 0), const btVector3 &aabbMax=btVector3(0, 0, 0))

virtual void	aabbTest (const btVector3 &aabbMin, const btVector3 &aabbMax, btBroadphaseAabbCallback &callback)

virtual void	getAabb (btBroadphaseProxy *proxy, btVector3 &aabbMin, btVector3 &aabbMax) const

virtual void	calculateOverlappingPairs (btDispatcher *dispatcher)
	calculateOverlappingPairs is optional: incremental algorithms (sweep and prune) might do it during the set aabb More...

virtual btOverlappingPairCache *	getOverlappingPairCache ()

virtual const btOverlappingPairCache *	getOverlappingPairCache () const

virtual void	getBroadphaseAabb (btVector3 &aabbMin, btVector3 &aabbMax) const
	getAabb returns the axis aligned bounding box in the 'global' coordinate frame will add some transform later More...

virtual void	printStats ()

virtual void	resetPool (btDispatcher *dispatcher)
	reset broadphase internal structures, to ensure determinism/reproducability More...

void	performDeferredRemoval (btDispatcher *dispatcher)

void	setVelocityPrediction (btScalar prediction)

btScalar	getVelocityPrediction () const

void	setAabbForceUpdate (btBroadphaseProxy absproxy, const btVector3 &aabbMin, const btVector3 &aabbMax, btDispatcher )
	this setAabbForceUpdate is similar to setAabb but always forces the aabb update. More...

Public Member Functions inherited from btBroadphaseInterface
virtual	~btBroadphaseInterface ()

Static Public Member Functions
static void	benchmark (btBroadphaseInterface *)

Public Attributes
btDbvt	m_sets [2]

btDbvtProxy *	m_stageRoots [STAGECOUNT+1]

btOverlappingPairCache *	m_paircache

btScalar	m_prediction

int	m_stageCurrent

int	m_fupdates

int	m_dupdates

int	m_cupdates

int	m_newpairs

int	m_fixedleft

unsigned	m_updates_call

unsigned	m_updates_done

btScalar	m_updates_ratio

int	m_pid

int	m_cid

int	m_gid

bool	m_releasepaircache

bool	m_deferedcollide

bool	m_needcleanup

Detailed Description

The btDbvtBroadphase implements a broadphase using two dynamic AABB bounding volume hierarchies/trees (see btDbvt).

One tree is used for static/non-moving objects, and another tree is used for dynamic objects. Objects can move from one tree to the other. This is a very fast broadphase, especially for very dynamic worlds where many objects are moving. Its insert/add and remove of objects is generally faster than the sweep and prune broadphases btAxisSweep3 and bt32BitAxisSweep3.

Definition at line 62 of file btDbvtBroadphase.h.

Member Enumeration Documentation

anonymous enum

Enumerator
DYNAMIC_SET
FIXED_SET
STAGECOUNT

Definition at line 65 of file btDbvtBroadphase.h.

Constructor & Destructor Documentation

btDbvtBroadphase::btDbvtBroadphase ( btOverlappingPairCache * paircache = 0 )

Definition at line 122 of file btDbvtBroadphase.cpp.

btDbvtBroadphase::~btDbvtBroadphase ( )

Definition at line 151 of file btDbvtBroadphase.cpp.

Member Function Documentation

void btDbvtBroadphase::aabbTest	(	const btVector3 &	aabbMin,
		const btVector3 &	aabbMax,
		btBroadphaseAabbCallback &	callback
	)

virtual

Implements btBroadphaseInterface.

Definition at line 268 of file btDbvtBroadphase.cpp.

void btDbvtBroadphase::benchmark ( btBroadphaseInterface * )

static

Definition at line 789 of file btDbvtBroadphase.cpp.

void btDbvtBroadphase::calculateOverlappingPairs ( btDispatcher * dispatcher )

virtual

calculateOverlappingPairs is optional: incremental algorithms (sweep and prune) might do it during the set aabb

Implements btBroadphaseInterface.

Definition at line 390 of file btDbvtBroadphase.cpp.

void btDbvtBroadphase::collide ( btDispatcher * dispatcher )

Definition at line 490 of file btDbvtBroadphase.cpp.

btBroadphaseProxy * btDbvtBroadphase::createProxy	(	const btVector3 &	aabbMin,
		const btVector3 &	aabbMax,
		int	shapeType,
		void *	userPtr,
		short int	collisionFilterGroup,
		short int	collisionFilterMask,
		btDispatcher *	dispatcher,
		void *	multiSapProxy
	)

virtual

Implements btBroadphaseInterface.

Definition at line 161 of file btDbvtBroadphase.cpp.

void btDbvtBroadphase::destroyProxy	(	btBroadphaseProxy *	proxy,
		btDispatcher *	dispatcher
	)

virtual

Implements btBroadphaseInterface.

Definition at line 192 of file btDbvtBroadphase.cpp.

void btDbvtBroadphase::getAabb	(	btBroadphaseProxy *	proxy,
		btVector3 &	aabbMin,
		btVector3 &	aabbMax
	)		const

virtual

Implements btBroadphaseInterface.

Definition at line 206 of file btDbvtBroadphase.cpp.

void btDbvtBroadphase::getBroadphaseAabb	(	btVector3 &	aabbMin,
		btVector3 &	aabbMax
	)		const

virtual

getAabb returns the axis aligned bounding box in the 'global' coordinate frame will add some transform later

Implements btBroadphaseInterface.

Definition at line 615 of file btDbvtBroadphase.cpp.

btOverlappingPairCache * btDbvtBroadphase::getOverlappingPairCache ( )

virtual

Implements btBroadphaseInterface.

Definition at line 603 of file btDbvtBroadphase.cpp.

const btOverlappingPairCache * btDbvtBroadphase::getOverlappingPairCache ( ) const

virtual

Implements btBroadphaseInterface.

Definition at line 609 of file btDbvtBroadphase.cpp.

btScalar btDbvtBroadphase::getVelocityPrediction ( ) const

inline

Definition at line 130 of file btDbvtBroadphase.h.

void btDbvtBroadphase::optimize ( )

Definition at line 596 of file btDbvtBroadphase.cpp.

void btDbvtBroadphase::performDeferredRemoval ( btDispatcher * dispatcher )

Definition at line 417 of file btDbvtBroadphase.cpp.

void btDbvtBroadphase::printStats ( )

virtual

Implements btBroadphaseInterface.

Definition at line 665 of file btDbvtBroadphase.cpp.

void btDbvtBroadphase::rayTest	(	const btVector3 &	rayFrom,
		const btVector3 &	rayTo,
		btBroadphaseRayCallback &	rayCallback,
		const btVector3 &	aabbMin = `btVector3(0,0,0)`,
		const btVector3 &	aabbMax = `btVector3(0,0,0)`
	)

virtual

Implements btBroadphaseInterface.

Definition at line 227 of file btDbvtBroadphase.cpp.

void btDbvtBroadphase::resetPool ( btDispatcher * dispatcher )

virtual

reset broadphase internal structures, to ensure determinism/reproducability

Reimplemented from btBroadphaseInterface.

Definition at line 632 of file btDbvtBroadphase.cpp.

void btDbvtBroadphase::setAabb	(	btBroadphaseProxy *	proxy,
		const btVector3 &	aabbMin,
		const btVector3 &	aabbMax,
		btDispatcher *	dispatcher
	)

virtual

Implements btBroadphaseInterface.

Definition at line 282 of file btDbvtBroadphase.cpp.

void btDbvtBroadphase::setAabbForceUpdate	(	btBroadphaseProxy *	absproxy,
		const btVector3 &	aabbMin,
		const btVector3 &	aabbMax,
		btDispatcher *
	)

this setAabbForceUpdate is similar to setAabb but always forces the aabb update.

it is not part of the btBroadphaseInterface but specific to btDbvtBroadphase. it bypasses certain optimizations that prevent aabb updates (when the aabb shrinks), see http://code.google.com/p/bullet/issues/detail?id=223

Definition at line 350 of file btDbvtBroadphase.cpp.

void btDbvtBroadphase::setVelocityPrediction ( btScalar prediction )

inline

Definition at line 126 of file btDbvtBroadphase.h.

Member Data Documentation

int btDbvtBroadphase::m_cid

Definition at line 85 of file btDbvtBroadphase.h.

int btDbvtBroadphase::m_cupdates

Definition at line 78 of file btDbvtBroadphase.h.

bool btDbvtBroadphase::m_deferedcollide

Definition at line 88 of file btDbvtBroadphase.h.

int btDbvtBroadphase::m_dupdates

Definition at line 77 of file btDbvtBroadphase.h.

int btDbvtBroadphase::m_fixedleft

Definition at line 80 of file btDbvtBroadphase.h.

int btDbvtBroadphase::m_fupdates

Definition at line 76 of file btDbvtBroadphase.h.

int btDbvtBroadphase::m_gid

Definition at line 86 of file btDbvtBroadphase.h.

bool btDbvtBroadphase::m_needcleanup

Definition at line 89 of file btDbvtBroadphase.h.

int btDbvtBroadphase::m_newpairs

Definition at line 79 of file btDbvtBroadphase.h.

btOverlappingPairCache* btDbvtBroadphase::m_paircache

Definition at line 73 of file btDbvtBroadphase.h.

int btDbvtBroadphase::m_pid

Definition at line 84 of file btDbvtBroadphase.h.

btScalar btDbvtBroadphase::m_prediction

Definition at line 74 of file btDbvtBroadphase.h.

bool btDbvtBroadphase::m_releasepaircache

Definition at line 87 of file btDbvtBroadphase.h.

btDbvt btDbvtBroadphase::m_sets[2]

Definition at line 71 of file btDbvtBroadphase.h.

int btDbvtBroadphase::m_stageCurrent

Definition at line 75 of file btDbvtBroadphase.h.

btDbvtProxy* btDbvtBroadphase::m_stageRoots[STAGECOUNT+1]

Definition at line 72 of file btDbvtBroadphase.h.

unsigned btDbvtBroadphase::m_updates_call

Definition at line 81 of file btDbvtBroadphase.h.

unsigned btDbvtBroadphase::m_updates_done

Definition at line 82 of file btDbvtBroadphase.h.

btScalar btDbvtBroadphase::m_updates_ratio

Definition at line 83 of file btDbvtBroadphase.h.

The documentation for this struct was generated from the following files:

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation