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Bullet Collision Detection & Physics Library
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The btRigidBody is the main class for rigid body objects. More...
#include <btRigidBody.h>


Classes | |
| struct | btRigidBodyConstructionInfo |
| The btRigidBodyConstructionInfo structure provides information to create a rigid body. More... | |
Public Member Functions | |
| btRigidBody (const btRigidBodyConstructionInfo &constructionInfo) | |
| btRigidBody constructor using construction info | |
| btRigidBody (btScalar mass, btMotionState *motionState, btCollisionShape *collisionShape, const btVector3 &localInertia=btVector3(0, 0, 0)) | |
| btRigidBody constructor for backwards compatibility. | |
| virtual | ~btRigidBody () |
| void | proceedToTransform (const btTransform &newTrans) |
| void | predictIntegratedTransform (btScalar step, btTransform &predictedTransform) |
| continuous collision detection needs prediction | |
| void | saveKinematicState (btScalar step) |
| void | applyGravity () |
| void | setGravity (const btVector3 &acceleration) |
| const btVector3 & | getGravity () const |
| void | setDamping (btScalar lin_damping, btScalar ang_damping) |
| btScalar | getLinearDamping () const |
| btScalar | getAngularDamping () const |
| btScalar | getLinearSleepingThreshold () const |
| btScalar | getAngularSleepingThreshold () const |
| void | applyDamping (btScalar timeStep) |
| applyDamping damps the velocity, using the given m_linearDamping and m_angularDamping | |
| const btCollisionShape * | getCollisionShape () const |
| btCollisionShape * | getCollisionShape () |
| void | setMassProps (btScalar mass, const btVector3 &inertia) |
| const btVector3 & | getLinearFactor () const |
| void | setLinearFactor (const btVector3 &linearFactor) |
| btScalar | getInvMass () const |
| const btMatrix3x3 & | getInvInertiaTensorWorld () const |
| void | integrateVelocities (btScalar step) |
| void | setCenterOfMassTransform (const btTransform &xform) |
| void | applyCentralForce (const btVector3 &force) |
| const btVector3 & | getTotalForce () const |
| const btVector3 & | getTotalTorque () const |
| const btVector3 & | getInvInertiaDiagLocal () const |
| void | setInvInertiaDiagLocal (const btVector3 &diagInvInertia) |
| void | setSleepingThresholds (btScalar linear, btScalar angular) |
| void | applyTorque (const btVector3 &torque) |
| void | applyForce (const btVector3 &force, const btVector3 &rel_pos) |
| void | applyCentralImpulse (const btVector3 &impulse) |
| void | applyTorqueImpulse (const btVector3 &torque) |
| void | applyImpulse (const btVector3 &impulse, const btVector3 &rel_pos) |
| void | clearForces () |
| void | updateInertiaTensor () |
| const btVector3 & | getCenterOfMassPosition () const |
| btQuaternion | getOrientation () const |
| const btTransform & | getCenterOfMassTransform () const |
| const btVector3 & | getLinearVelocity () const |
| const btVector3 & | getAngularVelocity () const |
| void | setLinearVelocity (const btVector3 &lin_vel) |
| void | setAngularVelocity (const btVector3 &ang_vel) |
| btVector3 | getVelocityInLocalPoint (const btVector3 &rel_pos) const |
| void | translate (const btVector3 &v) |
| void | getAabb (btVector3 &aabbMin, btVector3 &aabbMax) const |
| btScalar | computeImpulseDenominator (const btVector3 &pos, const btVector3 &normal) const |
| btScalar | computeAngularImpulseDenominator (const btVector3 &axis) const |
| void | updateDeactivation (btScalar timeStep) |
| bool | wantsSleeping () |
| const btBroadphaseProxy * | getBroadphaseProxy () const |
| btBroadphaseProxy * | getBroadphaseProxy () |
| void | setNewBroadphaseProxy (btBroadphaseProxy *broadphaseProxy) |
| btMotionState * | getMotionState () |
| const btMotionState * | getMotionState () const |
| void | setMotionState (btMotionState *motionState) |
| void | setAngularFactor (const btVector3 &angFac) |
| void | setAngularFactor (btScalar angFac) |
| const btVector3 & | getAngularFactor () const |
| bool | isInWorld () const |
| void | addConstraintRef (btTypedConstraint *c) |
| void | removeConstraintRef (btTypedConstraint *c) |
| btTypedConstraint * | getConstraintRef (int index) |
| int | getNumConstraintRefs () const |
| void | setFlags (int flags) |
| int | getFlags () const |
| btVector3 | computeGyroscopicImpulseImplicit_World (btScalar dt) const |
| perform implicit force computation in world space | |
| btVector3 | computeGyroscopicImpulseImplicit_Body (btScalar step) const |
| perform implicit force computation in body space (inertial frame) | |
| btVector3 | computeGyroscopicForceExplicit (btScalar maxGyroscopicForce) const |
| explicit version is best avoided, it gains energy | |
| btVector3 | getLocalInertia () const |
| virtual int | calculateSerializeBufferSize () const |
| virtual const char * | serialize (void *dataBuffer, class btSerializer *serializer) const |
| fills the dataBuffer and returns the struct name (and 0 on failure) | |
| virtual void | serializeSingleObject (class btSerializer *serializer) const |
Public Member Functions inherited from btCollisionObject | |
| BT_DECLARE_ALIGNED_ALLOCATOR () | |
| bool | mergesSimulationIslands () const |
| const btVector3 & | getAnisotropicFriction () const |
| void | setAnisotropicFriction (const btVector3 &anisotropicFriction, int frictionMode=CF_ANISOTROPIC_FRICTION) |
| bool | hasAnisotropicFriction (int frictionMode=CF_ANISOTROPIC_FRICTION) const |
| void | setContactProcessingThreshold (btScalar contactProcessingThreshold) |
| the constraint solver can discard solving contacts, if the distance is above this threshold. | |
| btScalar | getContactProcessingThreshold () const |
| bool | isStaticObject () const |
| bool | isKinematicObject () const |
| bool | isStaticOrKinematicObject () const |
| bool | hasContactResponse () const |
| btCollisionObject () | |
| virtual | ~btCollisionObject () |
| virtual void | setCollisionShape (btCollisionShape *collisionShape) |
| const btCollisionShape * | getCollisionShape () const |
| btCollisionShape * | getCollisionShape () |
| void | setIgnoreCollisionCheck (const btCollisionObject *co, bool ignoreCollisionCheck) |
| virtual bool | checkCollideWithOverride (const btCollisionObject *co) const |
| void * | internalGetExtensionPointer () const |
| Avoid using this internal API call, the extension pointer is used by some Bullet extensions. | |
| void | internalSetExtensionPointer (void *pointer) |
| Avoid using this internal API call, the extension pointer is used by some Bullet extensions If you need to store your own user pointer, use 'setUserPointer/getUserPointer' instead. | |
| int | getActivationState () const |
| void | setActivationState (int newState) const |
| void | setDeactivationTime (btScalar time) |
| btScalar | getDeactivationTime () const |
| void | forceActivationState (int newState) const |
| void | activate (bool forceActivation=false) const |
| bool | isActive () const |
| void | setRestitution (btScalar rest) |
| btScalar | getRestitution () const |
| void | setFriction (btScalar frict) |
| btScalar | getFriction () const |
| void | setRollingFriction (btScalar frict) |
| btScalar | getRollingFriction () const |
| void | setSpinningFriction (btScalar frict) |
| btScalar | getSpinningFriction () const |
| void | setContactStiffnessAndDamping (btScalar stiffness, btScalar damping) |
| btScalar | getContactStiffness () const |
| btScalar | getContactDamping () const |
| int | getInternalType () const |
| reserved for Bullet internal usage | |
| btTransform & | getWorldTransform () |
| const btTransform & | getWorldTransform () const |
| void | setWorldTransform (const btTransform &worldTrans) |
| btBroadphaseProxy * | getBroadphaseHandle () |
| const btBroadphaseProxy * | getBroadphaseHandle () const |
| void | setBroadphaseHandle (btBroadphaseProxy *handle) |
| const btTransform & | getInterpolationWorldTransform () const |
| btTransform & | getInterpolationWorldTransform () |
| void | setInterpolationWorldTransform (const btTransform &trans) |
| void | setInterpolationLinearVelocity (const btVector3 &linvel) |
| void | setInterpolationAngularVelocity (const btVector3 &angvel) |
| const btVector3 & | getInterpolationLinearVelocity () const |
| const btVector3 & | getInterpolationAngularVelocity () const |
| int | getIslandTag () const |
| void | setIslandTag (int tag) |
| int | getCompanionId () const |
| void | setCompanionId (int id) |
| int | getWorldArrayIndex () const |
| void | setWorldArrayIndex (int ix) |
| btScalar | getHitFraction () const |
| void | setHitFraction (btScalar hitFraction) |
| int | getCollisionFlags () const |
| void | setCollisionFlags (int flags) |
| btScalar | getCcdSweptSphereRadius () const |
| Swept sphere radius (0.0 by default), see btConvexConvexAlgorithm:: | |
| void | setCcdSweptSphereRadius (btScalar radius) |
| Swept sphere radius (0.0 by default), see btConvexConvexAlgorithm:: | |
| btScalar | getCcdMotionThreshold () const |
| btScalar | getCcdSquareMotionThreshold () const |
| void | setCcdMotionThreshold (btScalar ccdMotionThreshold) |
| Don't do continuous collision detection if the motion (in one step) is less then m_ccdMotionThreshold. | |
| void * | getUserPointer () const |
| users can point to their objects, userPointer is not used by Bullet | |
| int | getUserIndex () const |
| int | getUserIndex2 () const |
| void | setUserPointer (void *userPointer) |
| users can point to their objects, userPointer is not used by Bullet | |
| void | setUserIndex (int index) |
| users can point to their objects, userPointer is not used by Bullet | |
| void | setUserIndex2 (int index) |
| int | getUpdateRevisionInternal () const |
| void | setCustomDebugColor (const btVector3 &colorRGB) |
| void | removeCustomDebugColor () |
| bool | getCustomDebugColor (btVector3 &colorRGB) const |
| bool | checkCollideWith (const btCollisionObject *co) const |
| virtual int | calculateSerializeBufferSize () const |
| virtual const char * | serialize (void *dataBuffer, class btSerializer *serializer) const |
| fills the dataBuffer and returns the struct name (and 0 on failure) | |
| virtual void | serializeSingleObject (class btSerializer *serializer) const |
Static Public Member Functions | |
| static const btRigidBody * | upcast (const btCollisionObject *colObj) |
| to keep collision detection and dynamics separate we don't store a rigidbody pointer but a rigidbody is derived from btCollisionObject, so we can safely perform an upcast | |
| static btRigidBody * | upcast (btCollisionObject *colObj) |
Public Attributes | |
| int | m_contactSolverType |
| int | m_frictionSolverType |
Protected Member Functions | |
| void | setupRigidBody (const btRigidBodyConstructionInfo &constructionInfo) |
| setupRigidBody is only used internally by the constructor | |
Protected Attributes | |
| btVector3 | m_deltaLinearVelocity |
| btVector3 | m_deltaAngularVelocity |
| btVector3 | m_angularFactor |
| btVector3 | m_invMass |
| btVector3 | m_pushVelocity |
| btVector3 | m_turnVelocity |
Protected Attributes inherited from btCollisionObject | |
| btTransform | m_worldTransform |
| btTransform | m_interpolationWorldTransform |
| m_interpolationWorldTransform is used for CCD and interpolation it can be either previous or future (predicted) transform | |
| btVector3 | m_interpolationLinearVelocity |
| btVector3 | m_interpolationAngularVelocity |
| btVector3 | m_anisotropicFriction |
| int | m_hasAnisotropicFriction |
| btScalar | m_contactProcessingThreshold |
| btBroadphaseProxy * | m_broadphaseHandle |
| btCollisionShape * | m_collisionShape |
| void * | m_extensionPointer |
| m_extensionPointer is used by some internal low-level Bullet extensions. | |
| btCollisionShape * | m_rootCollisionShape |
| m_rootCollisionShape is temporarily used to store the original collision shape The m_collisionShape might be temporarily replaced by a child collision shape during collision detection purposes If it is NULL, the m_collisionShape is not temporarily replaced. | |
| int | m_collisionFlags |
| int | m_islandTag1 |
| int | m_companionId |
| int | m_worldArrayIndex |
| int | m_activationState1 |
| btScalar | m_deactivationTime |
| btScalar | m_friction |
| btScalar | m_restitution |
| btScalar | m_rollingFriction |
| btScalar | m_spinningFriction |
| btScalar | m_contactDamping |
| btScalar | m_contactStiffness |
| int | m_internalType |
| m_internalType is reserved to distinguish Bullet's btCollisionObject, btRigidBody, btSoftBody, btGhostObject etc. | |
| void * | m_userObjectPointer |
| users can point to their objects, m_userPointer is not used by Bullet, see setUserPointer/getUserPointer | |
| int | m_userIndex2 |
| int | m_userIndex |
| btScalar | m_hitFraction |
| time of impact calculation | |
| btScalar | m_ccdSweptSphereRadius |
| Swept sphere radius (0.0 by default), see btConvexConvexAlgorithm:: | |
| btScalar | m_ccdMotionThreshold |
| Don't do continuous collision detection if the motion (in one step) is less then m_ccdMotionThreshold. | |
| int | m_checkCollideWith |
| If some object should have elaborate collision filtering by sub-classes. | |
| btAlignedObjectArray< const btCollisionObject * > | m_objectsWithoutCollisionCheck |
| int | m_updateRevision |
| internal update revision number. It will be increased when the object changes. This allows some subsystems to perform lazy evaluation. | |
| btVector3 | m_customDebugColorRGB |
Additional Inherited Members | |
Public Types inherited from btCollisionObject | |
| enum | CollisionFlags { CF_STATIC_OBJECT = 1 , CF_KINEMATIC_OBJECT = 2 , CF_NO_CONTACT_RESPONSE = 4 , CF_CUSTOM_MATERIAL_CALLBACK = 8 , CF_CHARACTER_OBJECT = 16 , CF_DISABLE_VISUALIZE_OBJECT = 32 , CF_DISABLE_SPU_COLLISION_PROCESSING = 64 , CF_HAS_CONTACT_STIFFNESS_DAMPING = 128 , CF_HAS_CUSTOM_DEBUG_RENDERING_COLOR = 256 , CF_HAS_FRICTION_ANCHOR = 512 , CF_HAS_COLLISION_SOUND_TRIGGER = 1024 } |
| enum | CollisionObjectTypes { CO_COLLISION_OBJECT =1 , CO_RIGID_BODY =2 , CO_GHOST_OBJECT =4 , CO_SOFT_BODY =8 , CO_HF_FLUID =16 , CO_USER_TYPE =32 , CO_FEATHERSTONE_LINK =64 } |
| enum | AnisotropicFrictionFlags { CF_ANISOTROPIC_FRICTION_DISABLED =0 , CF_ANISOTROPIC_FRICTION = 1 , CF_ANISOTROPIC_ROLLING_FRICTION = 2 } |
The btRigidBody is the main class for rigid body objects.
It is derived from btCollisionObject, so it keeps a pointer to a btCollisionShape. It is recommended for performance and memory use to share btCollisionShape objects whenever possible. There are 3 types of rigid bodies:
Definition at line 62 of file btRigidBody.h.
| btRigidBody::btRigidBody | ( | const btRigidBodyConstructionInfo & | constructionInfo | ) |
btRigidBody constructor using construction info
Definition at line 30 of file btRigidBody.cpp.
| btRigidBody::btRigidBody | ( | btScalar | mass, |
| btMotionState * | motionState, | ||
| btCollisionShape * | collisionShape, | ||
| const btVector3 & | localInertia = btVector3(0,0,0) |
||
| ) |
btRigidBody constructor for backwards compatibility.
To specify friction (etc) during rigid body construction, please use the other constructor (using btRigidBodyConstructionInfo)
Definition at line 35 of file btRigidBody.cpp.
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Definition at line 185 of file btRigidBody.h.
| void btRigidBody::addConstraintRef | ( | btTypedConstraint * | c | ) |
disable collision with the 'other' body
Definition at line 433 of file btRigidBody.cpp.
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Definition at line 282 of file btRigidBody.h.
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Definition at line 324 of file btRigidBody.h.
| void btRigidBody::applyDamping | ( | btScalar | timeStep | ) |
applyDamping damps the velocity, using the given m_linearDamping and m_angularDamping
Definition at line 161 of file btRigidBody.cpp.
Definition at line 318 of file btRigidBody.h.
| void btRigidBody::applyGravity | ( | ) |
Definition at line 218 of file btRigidBody.cpp.
Definition at line 334 of file btRigidBody.h.
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Definition at line 313 of file btRigidBody.h.
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Definition at line 329 of file btRigidBody.h.
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Reimplemented from btCollisionObject.
Definition at line 476 of file btRigidBody.cpp.
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Definition at line 346 of file btRigidBody.h.
Definition at line 415 of file btRigidBody.h.
explicit version is best avoided, it gains energy
Definition at line 294 of file btRigidBody.cpp.
perform implicit force computation in body space (inertial frame)
Definition at line 309 of file btRigidBody.cpp.
perform implicit force computation in world space
Definition at line 350 of file btRigidBody.cpp.
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Definition at line 403 of file btRigidBody.h.
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Definition at line 362 of file btRigidBody.h.
| btVector3 btRigidBody::getLocalInertia | ( | ) | const |
Definition at line 263 of file btRigidBody.cpp.
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Definition at line 474 of file btRigidBody.h.
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Definition at line 478 of file btRigidBody.h.
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Definition at line 523 of file btRigidBody.h.
| btQuaternion btRigidBody::getOrientation | ( | ) | const |
Definition at line 405 of file btRigidBody.cpp.
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Definition at line 287 of file btRigidBody.h.
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Definition at line 382 of file btRigidBody.h.
| void btRigidBody::integrateVelocities | ( | btScalar | step | ) |
clamp angular velocity. collision calculations will fail on higher angular velocities
Definition at line 387 of file btRigidBody.cpp.
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Definition at line 510 of file btRigidBody.h.
| void btRigidBody::predictIntegratedTransform | ( | btScalar | step, |
| btTransform & | predictedTransform | ||
| ) |
continuous collision detection needs prediction
Definition at line 106 of file btRigidBody.cpp.
| void btRigidBody::proceedToTransform | ( | const btTransform & | newTrans | ) |
Definition at line 227 of file btRigidBody.cpp.
| void btRigidBody::removeConstraintRef | ( | btTypedConstraint * | c | ) |
Definition at line 456 of file btRigidBody.cpp.
| void btRigidBody::saveKinematicState | ( | btScalar | step | ) |
Definition at line 111 of file btRigidBody.cpp.
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fills the dataBuffer and returns the struct name (and 0 on failure)
Reimplemented from btCollisionObject.
Definition at line 483 of file btRigidBody.cpp.
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Reimplemented from btCollisionObject.
Definition at line 520 of file btRigidBody.cpp.
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Definition at line 499 of file btRigidBody.h.
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| void btRigidBody::setCenterOfMassTransform | ( | const btTransform & | xform | ) |
Definition at line 413 of file btRigidBody.cpp.
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Definition at line 528 of file btRigidBody.h.
| void btRigidBody::setGravity | ( | const btVector3 & | acceleration | ) |
Definition at line 137 of file btRigidBody.cpp.
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setupRigidBody is only used internally by the constructor
Definition at line 41 of file btRigidBody.cpp.
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Definition at line 391 of file btRigidBody.h.
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Definition at line 209 of file btRigidBody.h.
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to keep collision detection and dynamics separate we don't store a rigidbody pointer but a rigidbody is derived from btCollisionObject, so we can safely perform an upcast
Definition at line 203 of file btRigidBody.h.
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Definition at line 421 of file btRigidBody.h.
| void btRigidBody::updateInertiaTensor | ( | ) |
Definition at line 256 of file btRigidBody.cpp.
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| int btRigidBody::m_contactSolverType |
Definition at line 490 of file btRigidBody.h.
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| int btRigidBody::m_frictionSolverType |
Definition at line 491 of file btRigidBody.h.
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