Bullet Collision Detection & Physics Library: btDbvtBroadphase Struct Reference

Bullet Collision Detection & Physics Library

Public Types | Public Member Functions | Static Public Member Functions | Public Attributes | List of all members
btDbvtBroadphase Struct Reference

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, int collisionFilterGroup, int collisionFilterMask, btDispatcher *dispatcher)
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
btAlignedObjectArray< btAlignedObjectArray< const btDbvtNode * > > | m_rayTestStacks

## 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

anonymous enum

Enumerator
DYNAMIC_SET |
FIXED_SET |
STAGECOUNT |

Definition at line 65 of file btDbvtBroadphase.h.

## Constructor & Destructor Documentation

## § btDbvtBroadphase()

btDbvtBroadphase::btDbvtBroadphase | ( | btOverlappingPairCache * | paircache = `0` | ) |

Definition at line 123 of file btDbvtBroadphase.cpp.

## § ~btDbvtBroadphase()

btDbvtBroadphase::~btDbvtBroadphase | ( |  | ) |

Definition at line 157 of file btDbvtBroadphase.cpp.

## Member Function Documentation

## § aabbTest()

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

Implements btBroadphaseInterface.

Definition at line 292 of file btDbvtBroadphase.cpp.

## § benchmark()

void btDbvtBroadphase::benchmark | ( | btBroadphaseInterface * |  | ) |
| static

Definition at line 813 of file btDbvtBroadphase.cpp.

## § calculateOverlappingPairs()

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 414 of file btDbvtBroadphase.cpp.

## § collide()

void btDbvtBroadphase::collide | ( | btDispatcher * | dispatcher | ) |

Definition at line 514 of file btDbvtBroadphase.cpp.

## § createProxy()

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

Implements btBroadphaseInterface.

Definition at line 167 of file btDbvtBroadphase.cpp.

## § destroyProxy()

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

Implements btBroadphaseInterface.

Definition at line 197 of file btDbvtBroadphase.cpp.

## § getAabb()

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

Implements btBroadphaseInterface.

Definition at line 211 of file btDbvtBroadphase.cpp.

## § getBroadphaseAabb()

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 639 of file btDbvtBroadphase.cpp.

## § getOverlappingPairCache() [1/2]

btOverlappingPairCache * btDbvtBroadphase::getOverlappingPairCache | ( |  | ) |
| virtual

Implements btBroadphaseInterface.

Definition at line 627 of file btDbvtBroadphase.cpp.

## § getOverlappingPairCache() [2/2]

const btOverlappingPairCache * btDbvtBroadphase::getOverlappingPairCache | ( |  | ) | const
| virtual

Implements btBroadphaseInterface.

Definition at line 633 of file btDbvtBroadphase.cpp.

## § getVelocityPrediction()

btScalar btDbvtBroadphase::getVelocityPrediction | ( |  | ) | const
| inline

Definition at line 131 of file btDbvtBroadphase.h.

## § optimize()

void btDbvtBroadphase::optimize | ( |  | ) |

Definition at line 620 of file btDbvtBroadphase.cpp.

## § performDeferredRemoval()

void btDbvtBroadphase::performDeferredRemoval | ( | btDispatcher * | dispatcher | ) |

Definition at line 441 of file btDbvtBroadphase.cpp.

## § printStats()

void btDbvtBroadphase::printStats | ( |  | ) |
| virtual

Implements btBroadphaseInterface.

Definition at line 689 of file btDbvtBroadphase.cpp.

## § rayTest()

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 232 of file btDbvtBroadphase.cpp.

## § resetPool()

void btDbvtBroadphase::resetPool | ( | btDispatcher * | dispatcher | ) |
| virtual

reset broadphase internal structures, to ensure determinism/reproducability

Reimplemented from btBroadphaseInterface.

Definition at line 656 of file btDbvtBroadphase.cpp.

## § setAabb()

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

Implements btBroadphaseInterface.

Definition at line 306 of file btDbvtBroadphase.cpp.

## § setAabbForceUpdate()

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 374 of file btDbvtBroadphase.cpp.

## § setVelocityPrediction()

void btDbvtBroadphase::setVelocityPrediction | ( | btScalar | prediction | ) |
| inline

Definition at line 127 of file btDbvtBroadphase.h.

## Member Data Documentation

## § m_cid

int btDbvtBroadphase::m_cid

Definition at line 85 of file btDbvtBroadphase.h.

## § m_cupdates

int btDbvtBroadphase::m_cupdates

Definition at line 78 of file btDbvtBroadphase.h.

## § m_deferedcollide

bool btDbvtBroadphase::m_deferedcollide

Definition at line 88 of file btDbvtBroadphase.h.

## § m_dupdates

int btDbvtBroadphase::m_dupdates

Definition at line 77 of file btDbvtBroadphase.h.

## § m_fixedleft

int btDbvtBroadphase::m_fixedleft

Definition at line 80 of file btDbvtBroadphase.h.

## § m_fupdates

int btDbvtBroadphase::m_fupdates

Definition at line 76 of file btDbvtBroadphase.h.

## § m_gid

int btDbvtBroadphase::m_gid

Definition at line 86 of file btDbvtBroadphase.h.

## § m_needcleanup

bool btDbvtBroadphase::m_needcleanup

Definition at line 89 of file btDbvtBroadphase.h.

## § m_newpairs

int btDbvtBroadphase::m_newpairs

Definition at line 79 of file btDbvtBroadphase.h.

## § m_paircache

btOverlappingPairCache* btDbvtBroadphase::m_paircache

Definition at line 73 of file btDbvtBroadphase.h.

## § m_pid

int btDbvtBroadphase::m_pid

Definition at line 84 of file btDbvtBroadphase.h.

## § m_prediction

btScalar btDbvtBroadphase::m_prediction

Definition at line 74 of file btDbvtBroadphase.h.

## § m_rayTestStacks

btAlignedObjectArray< btAlignedObjectArray<const btDbvtNode*> > btDbvtBroadphase::m_rayTestStacks

Definition at line 90 of file btDbvtBroadphase.h.

## § m_releasepaircache

bool btDbvtBroadphase::m_releasepaircache

Definition at line 87 of file btDbvtBroadphase.h.

## § m_sets

btDbvt btDbvtBroadphase::m_sets[2]

Definition at line 71 of file btDbvtBroadphase.h.

## § m_stageCurrent

int btDbvtBroadphase::m_stageCurrent

Definition at line 75 of file btDbvtBroadphase.h.

## § m_stageRoots

btDbvtProxy* btDbvtBroadphase::m_stageRoots[STAGECOUNT+1]

Definition at line 72 of file btDbvtBroadphase.h.

## § m_updates_call

unsigned btDbvtBroadphase::m_updates_call

Definition at line 81 of file btDbvtBroadphase.h.

## § m_updates_done

unsigned btDbvtBroadphase::m_updates_done

Definition at line 82 of file btDbvtBroadphase.h.

## § m_updates_ratio

btScalar btDbvtBroadphase::m_updates_ratio

Definition at line 83 of file btDbvtBroadphase.h.

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

- btDbvtBroadphase.h
- btDbvtBroadphase.cpp