diff options
| author | RĂ©mi Verschelde <rverschelde@gmail.com> | 2018-01-13 14:43:30 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-01-13 14:43:30 +0100 |
| commit | a3ee252993e8200c856be3fe664937f9461ee268 (patch) | |
| tree | af68e434545e20c538f896e28b73f2db7d626edd /thirdparty/bullet/src/BulletDynamics | |
| parent | c01575b3125ce1828f0cacb3f9f00286136f373c (diff) | |
| parent | e12c89e8c9896b2e5cdd70dbd2d2acb449ff4b94 (diff) | |
Merge pull request #15664 from akien-mga/thirdparty
Bugfix updates to various thirdparty libraries
Diffstat (limited to 'thirdparty/bullet/src/BulletDynamics')
94 files changed, 0 insertions, 33923 deletions
diff --git a/thirdparty/bullet/src/BulletDynamics/CMakeLists.txt b/thirdparty/bullet/src/BulletDynamics/CMakeLists.txt deleted file mode 100644 index f8a6f34baf..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/CMakeLists.txt +++ /dev/null @@ -1,170 +0,0 @@ -INCLUDE_DIRECTORIES( ${BULLET_PHYSICS_SOURCE_DIR}/src ) - - - -SET(BulletDynamics_SRCS - Character/btKinematicCharacterController.cpp - ConstraintSolver/btConeTwistConstraint.cpp - ConstraintSolver/btContactConstraint.cpp - ConstraintSolver/btFixedConstraint.cpp - ConstraintSolver/btGearConstraint.cpp - ConstraintSolver/btGeneric6DofConstraint.cpp - ConstraintSolver/btGeneric6DofSpringConstraint.cpp - ConstraintSolver/btGeneric6DofSpring2Constraint.cpp - ConstraintSolver/btHinge2Constraint.cpp - ConstraintSolver/btHingeConstraint.cpp - ConstraintSolver/btPoint2PointConstraint.cpp - ConstraintSolver/btSequentialImpulseConstraintSolver.cpp - ConstraintSolver/btNNCGConstraintSolver.cpp - ConstraintSolver/btSliderConstraint.cpp - ConstraintSolver/btSolve2LinearConstraint.cpp - ConstraintSolver/btTypedConstraint.cpp - ConstraintSolver/btUniversalConstraint.cpp - Dynamics/btDiscreteDynamicsWorld.cpp - Dynamics/btDiscreteDynamicsWorldMt.cpp - Dynamics/btSimulationIslandManagerMt.cpp - Dynamics/btRigidBody.cpp - Dynamics/btSimpleDynamicsWorld.cpp -# Dynamics/Bullet-C-API.cpp - Vehicle/btRaycastVehicle.cpp - Vehicle/btWheelInfo.cpp - Featherstone/btMultiBody.cpp - Featherstone/btMultiBodyConstraintSolver.cpp - Featherstone/btMultiBodyDynamicsWorld.cpp - Featherstone/btMultiBodyJointLimitConstraint.cpp - Featherstone/btMultiBodyConstraint.cpp - Featherstone/btMultiBodyPoint2Point.cpp - Featherstone/btMultiBodyFixedConstraint.cpp - Featherstone/btMultiBodySliderConstraint.cpp - Featherstone/btMultiBodyJointMotor.cpp - Featherstone/btMultiBodyGearConstraint.cpp - MLCPSolvers/btDantzigLCP.cpp - MLCPSolvers/btMLCPSolver.cpp - MLCPSolvers/btLemkeAlgorithm.cpp -) - -SET(Root_HDRS - ../btBulletDynamicsCommon.h - ../btBulletCollisionCommon.h -) -SET(ConstraintSolver_HDRS - ConstraintSolver/btConeTwistConstraint.h - ConstraintSolver/btConstraintSolver.h - ConstraintSolver/btContactConstraint.h - ConstraintSolver/btContactSolverInfo.h - ConstraintSolver/btFixedConstraint.h - ConstraintSolver/btGearConstraint.h - ConstraintSolver/btGeneric6DofConstraint.h - ConstraintSolver/btGeneric6DofSpringConstraint.h - ConstraintSolver/btGeneric6DofSpring2Constraint.h - ConstraintSolver/btHinge2Constraint.h - ConstraintSolver/btHingeConstraint.h - ConstraintSolver/btJacobianEntry.h - ConstraintSolver/btPoint2PointConstraint.h - ConstraintSolver/btSequentialImpulseConstraintSolver.h - ConstraintSolver/btNNCGConstraintSolver.h - ConstraintSolver/btSliderConstraint.h - ConstraintSolver/btSolve2LinearConstraint.h - ConstraintSolver/btSolverBody.h - ConstraintSolver/btSolverConstraint.h - ConstraintSolver/btTypedConstraint.h - ConstraintSolver/btUniversalConstraint.h -) -SET(Dynamics_HDRS - Dynamics/btActionInterface.h - Dynamics/btDiscreteDynamicsWorld.h - Dynamics/btDiscreteDynamicsWorldMt.h - Dynamics/btSimulationIslandManagerMt.h - Dynamics/btDynamicsWorld.h - Dynamics/btSimpleDynamicsWorld.h - Dynamics/btRigidBody.h -) -SET(Vehicle_HDRS - Vehicle/btRaycastVehicle.h - Vehicle/btVehicleRaycaster.h - Vehicle/btWheelInfo.h -) - -SET(Featherstone_HDRS - Featherstone/btMultiBody.h - Featherstone/btMultiBodyConstraintSolver.h - Featherstone/btMultiBodyDynamicsWorld.h - Featherstone/btMultiBodyLink.h - Featherstone/btMultiBodyLinkCollider.h - Featherstone/btMultiBodySolverConstraint.h - Featherstone/btMultiBodyConstraint.h - Featherstone/btMultiBodyJointLimitConstraint.h - Featherstone/btMultiBodyConstraint.h - Featherstone/btMultiBodyPoint2Point.h - Featherstone/btMultiBodyFixedConstraint.h - Featherstone/btMultiBodySliderConstraint.h - Featherstone/btMultiBodyJointMotor.h - Featherstone/btMultiBodyGearConstraint.h -) - -SET(MLCPSolvers_HDRS - MLCPSolvers/btDantzigLCP.h - MLCPSolvers/btDantzigSolver.h - MLCPSolvers/btMLCPSolver.h - MLCPSolvers/btMLCPSolverInterface.h - MLCPSolvers/btPATHSolver.h - MLCPSolvers/btSolveProjectedGaussSeidel.h - MLCPSolvers/btLemkeSolver.h - MLCPSolvers/btLemkeAlgorithm.h -) - -SET(Character_HDRS - Character/btCharacterControllerInterface.h - Character/btKinematicCharacterController.h -) - - - -SET(BulletDynamics_HDRS - ${Root_HDRS} - ${ConstraintSolver_HDRS} - ${Dynamics_HDRS} - ${Vehicle_HDRS} - ${Character_HDRS} - ${Featherstone_HDRS} - ${MLCPSolvers_HDRS} -) - - -ADD_LIBRARY(BulletDynamics ${BulletDynamics_SRCS} ${BulletDynamics_HDRS}) -SET_TARGET_PROPERTIES(BulletDynamics PROPERTIES VERSION ${BULLET_VERSION}) -SET_TARGET_PROPERTIES(BulletDynamics PROPERTIES SOVERSION ${BULLET_VERSION}) -IF (BUILD_SHARED_LIBS) - TARGET_LINK_LIBRARIES(BulletDynamics BulletCollision LinearMath) -ENDIF (BUILD_SHARED_LIBS) - -IF (INSTALL_LIBS) - IF (NOT INTERNAL_CREATE_DISTRIBUTABLE_MSVC_PROJECTFILES) - IF (${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 2.5) - IF (APPLE AND BUILD_SHARED_LIBS AND FRAMEWORK) - INSTALL(TARGETS BulletDynamics DESTINATION .) - ELSE (APPLE AND BUILD_SHARED_LIBS AND FRAMEWORK) - INSTALL(TARGETS BulletDynamics RUNTIME DESTINATION bin - LIBRARY DESTINATION lib${LIB_SUFFIX} - ARCHIVE DESTINATION lib${LIB_SUFFIX}) - INSTALL(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} -DESTINATION ${INCLUDE_INSTALL_DIR} FILES_MATCHING PATTERN "*.h" PATTERN -".svn" EXCLUDE PATTERN "CMakeFiles" EXCLUDE) - INSTALL(FILES ../btBulletDynamicsCommon.h -DESTINATION ${INCLUDE_INSTALL_DIR}/BulletDynamics) - ENDIF (APPLE AND BUILD_SHARED_LIBS AND FRAMEWORK) - ENDIF (${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 2.5) - - IF (APPLE AND BUILD_SHARED_LIBS AND FRAMEWORK) - SET_TARGET_PROPERTIES(BulletDynamics PROPERTIES FRAMEWORK true) - SET_TARGET_PROPERTIES(BulletDynamics PROPERTIES PUBLIC_HEADER "${Root_HDRS}") - # Have to list out sub-directories manually: - SET_PROPERTY(SOURCE ${ConstraintSolver_HDRS} PROPERTY MACOSX_PACKAGE_LOCATION Headers/ConstraintSolver) - SET_PROPERTY(SOURCE ${Dynamics_HDRS} PROPERTY MACOSX_PACKAGE_LOCATION Headers/Dynamics) - SET_PROPERTY(SOURCE ${Vehicle_HDRS} PROPERTY MACOSX_PACKAGE_LOCATION Headers/Vehicle) - SET_PROPERTY(SOURCE ${Character_HDRS} PROPERTY MACOSX_PACKAGE_LOCATION Headers/Character) - SET_PROPERTY(SOURCE ${Featherstone_HDRS} PROPERTY MACOSX_PACKAGE_LOCATION Headers/Featherstone) - SET_PROPERTY(SOURCE ${MLCPSolvers_HDRS} PROPERTY MACOSX_PACKAGE_LOCATION Headers/MLCPSolvers) - ENDIF (APPLE AND BUILD_SHARED_LIBS AND FRAMEWORK) - ENDIF (NOT INTERNAL_CREATE_DISTRIBUTABLE_MSVC_PROJECTFILES) -ENDIF (INSTALL_LIBS) diff --git a/thirdparty/bullet/src/BulletDynamics/Character/btCharacterControllerInterface.h b/thirdparty/bullet/src/BulletDynamics/Character/btCharacterControllerInterface.h deleted file mode 100644 index abe24b5ca6..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Character/btCharacterControllerInterface.h +++ /dev/null @@ -1,47 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2008 Erwin Coumans http://bulletphysics.com - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_CHARACTER_CONTROLLER_INTERFACE_H -#define BT_CHARACTER_CONTROLLER_INTERFACE_H - -#include "LinearMath/btVector3.h" -#include "BulletDynamics/Dynamics/btActionInterface.h" - -class btCollisionShape; -class btRigidBody; -class btCollisionWorld; - -class btCharacterControllerInterface : public btActionInterface -{ -public: - btCharacterControllerInterface () {}; - virtual ~btCharacterControllerInterface () {}; - - virtual void setWalkDirection(const btVector3& walkDirection) = 0; - virtual void setVelocityForTimeInterval(const btVector3& velocity, btScalar timeInterval) = 0; - virtual void reset ( btCollisionWorld* collisionWorld ) = 0; - virtual void warp (const btVector3& origin) = 0; - - virtual void preStep ( btCollisionWorld* collisionWorld) = 0; - virtual void playerStep (btCollisionWorld* collisionWorld, btScalar dt) = 0; - virtual bool canJump () const = 0; - virtual void jump(const btVector3& dir = btVector3(0, 0, 0)) = 0; - - virtual bool onGround () const = 0; - virtual void setUpInterpolate (bool value) = 0; -}; - -#endif //BT_CHARACTER_CONTROLLER_INTERFACE_H - diff --git a/thirdparty/bullet/src/BulletDynamics/Character/btKinematicCharacterController.cpp b/thirdparty/bullet/src/BulletDynamics/Character/btKinematicCharacterController.cpp deleted file mode 100644 index cb1aa71a14..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Character/btKinematicCharacterController.cpp +++ /dev/null @@ -1,1000 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2008 Erwin Coumans http://bulletphysics.com - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - - -#include <stdio.h> -#include "LinearMath/btIDebugDraw.h" -#include "BulletCollision/CollisionDispatch/btGhostObject.h" -#include "BulletCollision/CollisionShapes/btMultiSphereShape.h" -#include "BulletCollision/BroadphaseCollision/btOverlappingPairCache.h" -#include "BulletCollision/BroadphaseCollision/btCollisionAlgorithm.h" -#include "BulletCollision/CollisionDispatch/btCollisionWorld.h" -#include "LinearMath/btDefaultMotionState.h" -#include "btKinematicCharacterController.h" - - -// static helper method -static btVector3 -getNormalizedVector(const btVector3& v) -{ - btVector3 n(0, 0, 0); - - if (v.length() > SIMD_EPSILON) { - n = v.normalized(); - } - return n; -} - - -///@todo Interact with dynamic objects, -///Ride kinematicly animated platforms properly -///More realistic (or maybe just a config option) falling -/// -> Should integrate falling velocity manually and use that in stepDown() -///Support jumping -///Support ducking -class btKinematicClosestNotMeRayResultCallback : public btCollisionWorld::ClosestRayResultCallback -{ -public: - btKinematicClosestNotMeRayResultCallback (btCollisionObject* me) : btCollisionWorld::ClosestRayResultCallback(btVector3(0.0, 0.0, 0.0), btVector3(0.0, 0.0, 0.0)) - { - m_me = me; - } - - virtual btScalar addSingleResult(btCollisionWorld::LocalRayResult& rayResult,bool normalInWorldSpace) - { - if (rayResult.m_collisionObject == m_me) - return 1.0; - - return ClosestRayResultCallback::addSingleResult (rayResult, normalInWorldSpace); - } -protected: - btCollisionObject* m_me; -}; - -class btKinematicClosestNotMeConvexResultCallback : public btCollisionWorld::ClosestConvexResultCallback -{ -public: - btKinematicClosestNotMeConvexResultCallback (btCollisionObject* me, const btVector3& up, btScalar minSlopeDot) - : btCollisionWorld::ClosestConvexResultCallback(btVector3(0.0, 0.0, 0.0), btVector3(0.0, 0.0, 0.0)) - , m_me(me) - , m_up(up) - , m_minSlopeDot(minSlopeDot) - { - } - - virtual btScalar addSingleResult(btCollisionWorld::LocalConvexResult& convexResult,bool normalInWorldSpace) - { - if (convexResult.m_hitCollisionObject == m_me) - return btScalar(1.0); - - if (!convexResult.m_hitCollisionObject->hasContactResponse()) - return btScalar(1.0); - - btVector3 hitNormalWorld; - if (normalInWorldSpace) - { - hitNormalWorld = convexResult.m_hitNormalLocal; - } else - { - ///need to transform normal into worldspace - hitNormalWorld = convexResult.m_hitCollisionObject->getWorldTransform().getBasis()*convexResult.m_hitNormalLocal; - } - - btScalar dotUp = m_up.dot(hitNormalWorld); - if (dotUp < m_minSlopeDot) { - return btScalar(1.0); - } - - return ClosestConvexResultCallback::addSingleResult (convexResult, normalInWorldSpace); - } -protected: - btCollisionObject* m_me; - const btVector3 m_up; - btScalar m_minSlopeDot; -}; - -/* - * Returns the reflection direction of a ray going 'direction' hitting a surface with normal 'normal' - * - * from: http://www-cs-students.stanford.edu/~adityagp/final/node3.html - */ -btVector3 btKinematicCharacterController::computeReflectionDirection (const btVector3& direction, const btVector3& normal) -{ - return direction - (btScalar(2.0) * direction.dot(normal)) * normal; -} - -/* - * Returns the portion of 'direction' that is parallel to 'normal' - */ -btVector3 btKinematicCharacterController::parallelComponent (const btVector3& direction, const btVector3& normal) -{ - btScalar magnitude = direction.dot(normal); - return normal * magnitude; -} - -/* - * Returns the portion of 'direction' that is perpindicular to 'normal' - */ -btVector3 btKinematicCharacterController::perpindicularComponent (const btVector3& direction, const btVector3& normal) -{ - return direction - parallelComponent(direction, normal); -} - -btKinematicCharacterController::btKinematicCharacterController (btPairCachingGhostObject* ghostObject,btConvexShape* convexShape,btScalar stepHeight, const btVector3& up) -{ - m_ghostObject = ghostObject; - m_up.setValue(0.0f, 0.0f, 1.0f); - m_jumpAxis.setValue(0.0f, 0.0f, 1.0f); - m_addedMargin = 0.02; - m_walkDirection.setValue(0.0,0.0,0.0); - m_AngVel.setValue(0.0, 0.0, 0.0); - m_useGhostObjectSweepTest = true; - m_turnAngle = btScalar(0.0); - m_convexShape=convexShape; - m_useWalkDirection = true; // use walk direction by default, legacy behavior - m_velocityTimeInterval = 0.0; - m_verticalVelocity = 0.0; - m_verticalOffset = 0.0; - m_gravity = 9.8 * 3.0 ; // 3G acceleration. - m_fallSpeed = 55.0; // Terminal velocity of a sky diver in m/s. - m_jumpSpeed = 10.0; // ? - m_SetjumpSpeed = m_jumpSpeed; - m_wasOnGround = false; - m_wasJumping = false; - m_interpolateUp = true; - m_currentStepOffset = 0.0; - m_maxPenetrationDepth = 0.2; - full_drop = false; - bounce_fix = false; - m_linearDamping = btScalar(0.0); - m_angularDamping = btScalar(0.0); - - setUp(up); - setStepHeight(stepHeight); - setMaxSlope(btRadians(45.0)); -} - -btKinematicCharacterController::~btKinematicCharacterController () -{ -} - -btPairCachingGhostObject* btKinematicCharacterController::getGhostObject() -{ - return m_ghostObject; -} - -bool btKinematicCharacterController::recoverFromPenetration ( btCollisionWorld* collisionWorld) -{ - // Here we must refresh the overlapping paircache as the penetrating movement itself or the - // previous recovery iteration might have used setWorldTransform and pushed us into an object - // that is not in the previous cache contents from the last timestep, as will happen if we - // are pushed into a new AABB overlap. Unhandled this means the next convex sweep gets stuck. - // - // Do this by calling the broadphase's setAabb with the moved AABB, this will update the broadphase - // paircache and the ghostobject's internal paircache at the same time. /BW - - btVector3 minAabb, maxAabb; - m_convexShape->getAabb(m_ghostObject->getWorldTransform(), minAabb,maxAabb); - collisionWorld->getBroadphase()->setAabb(m_ghostObject->getBroadphaseHandle(), - minAabb, - maxAabb, - collisionWorld->getDispatcher()); - - bool penetration = false; - - collisionWorld->getDispatcher()->dispatchAllCollisionPairs(m_ghostObject->getOverlappingPairCache(), collisionWorld->getDispatchInfo(), collisionWorld->getDispatcher()); - - m_currentPosition = m_ghostObject->getWorldTransform().getOrigin(); - -// btScalar maxPen = btScalar(0.0); - for (int i = 0; i < m_ghostObject->getOverlappingPairCache()->getNumOverlappingPairs(); i++) - { - m_manifoldArray.resize(0); - - btBroadphasePair* collisionPair = &m_ghostObject->getOverlappingPairCache()->getOverlappingPairArray()[i]; - - btCollisionObject* obj0 = static_cast<btCollisionObject*>(collisionPair->m_pProxy0->m_clientObject); - btCollisionObject* obj1 = static_cast<btCollisionObject*>(collisionPair->m_pProxy1->m_clientObject); - - if ((obj0 && !obj0->hasContactResponse()) || (obj1 && !obj1->hasContactResponse())) - continue; - - if (!needsCollision(obj0, obj1)) - continue; - - if (collisionPair->m_algorithm) - collisionPair->m_algorithm->getAllContactManifolds(m_manifoldArray); - - - for (int j=0;j<m_manifoldArray.size();j++) - { - btPersistentManifold* manifold = m_manifoldArray[j]; - btScalar directionSign = manifold->getBody0() == m_ghostObject ? btScalar(-1.0) : btScalar(1.0); - for (int p=0;p<manifold->getNumContacts();p++) - { - const btManifoldPoint&pt = manifold->getContactPoint(p); - - btScalar dist = pt.getDistance(); - - if (dist < -m_maxPenetrationDepth) - { - // TODO: cause problems on slopes, not sure if it is needed - //if (dist < maxPen) - //{ - // maxPen = dist; - // m_touchingNormal = pt.m_normalWorldOnB * directionSign;//?? - - //} - m_currentPosition += pt.m_normalWorldOnB * directionSign * dist * btScalar(0.2); - penetration = true; - } else { - //printf("touching %f\n", dist); - } - } - - //manifold->clearManifold(); - } - } - btTransform newTrans = m_ghostObject->getWorldTransform(); - newTrans.setOrigin(m_currentPosition); - m_ghostObject->setWorldTransform(newTrans); -// printf("m_touchingNormal = %f,%f,%f\n",m_touchingNormal[0],m_touchingNormal[1],m_touchingNormal[2]); - return penetration; -} - -void btKinematicCharacterController::stepUp ( btCollisionWorld* world) -{ - btScalar stepHeight = 0.0f; - if (m_verticalVelocity < 0.0) - stepHeight = m_stepHeight; - - // phase 1: up - btTransform start, end; - - start.setIdentity (); - end.setIdentity (); - - /* FIXME: Handle penetration properly */ - start.setOrigin(m_currentPosition); - - m_targetPosition = m_currentPosition + m_up * (stepHeight) + m_jumpAxis * ((m_verticalOffset > 0.f ? m_verticalOffset : 0.f)); - m_currentPosition = m_targetPosition; - - end.setOrigin (m_targetPosition); - - start.setRotation(m_currentOrientation); - end.setRotation(m_targetOrientation); - - btKinematicClosestNotMeConvexResultCallback callback(m_ghostObject, -m_up, m_maxSlopeCosine); - callback.m_collisionFilterGroup = getGhostObject()->getBroadphaseHandle()->m_collisionFilterGroup; - callback.m_collisionFilterMask = getGhostObject()->getBroadphaseHandle()->m_collisionFilterMask; - - if (m_useGhostObjectSweepTest) - { - m_ghostObject->convexSweepTest (m_convexShape, start, end, callback, world->getDispatchInfo().m_allowedCcdPenetration); - } - else - { - world->convexSweepTest(m_convexShape, start, end, callback, world->getDispatchInfo().m_allowedCcdPenetration); - } - - if (callback.hasHit() && m_ghostObject->hasContactResponse() && needsCollision(m_ghostObject, callback.m_hitCollisionObject)) - { - // Only modify the position if the hit was a slope and not a wall or ceiling. - if (callback.m_hitNormalWorld.dot(m_up) > 0.0) - { - // we moved up only a fraction of the step height - m_currentStepOffset = stepHeight * callback.m_closestHitFraction; - if (m_interpolateUp == true) - m_currentPosition.setInterpolate3 (m_currentPosition, m_targetPosition, callback.m_closestHitFraction); - else - m_currentPosition = m_targetPosition; - } - - btTransform& xform = m_ghostObject->getWorldTransform(); - xform.setOrigin(m_currentPosition); - m_ghostObject->setWorldTransform(xform); - - // fix penetration if we hit a ceiling for example - int numPenetrationLoops = 0; - m_touchingContact = false; - while (recoverFromPenetration(world)) - { - numPenetrationLoops++; - m_touchingContact = true; - if (numPenetrationLoops > 4) - { - //printf("character could not recover from penetration = %d\n", numPenetrationLoops); - break; - } - } - m_targetPosition = m_ghostObject->getWorldTransform().getOrigin(); - m_currentPosition = m_targetPosition; - - if (m_verticalOffset > 0) - { - m_verticalOffset = 0.0; - m_verticalVelocity = 0.0; - m_currentStepOffset = m_stepHeight; - } - } else { - m_currentStepOffset = stepHeight; - m_currentPosition = m_targetPosition; - } -} - -bool btKinematicCharacterController::needsCollision(const btCollisionObject* body0, const btCollisionObject* body1) -{ - bool collides = (body0->getBroadphaseHandle()->m_collisionFilterGroup & body1->getBroadphaseHandle()->m_collisionFilterMask) != 0; - collides = collides && (body1->getBroadphaseHandle()->m_collisionFilterGroup & body0->getBroadphaseHandle()->m_collisionFilterMask); - return collides; -} - -void btKinematicCharacterController::updateTargetPositionBasedOnCollision (const btVector3& hitNormal, btScalar tangentMag, btScalar normalMag) -{ - btVector3 movementDirection = m_targetPosition - m_currentPosition; - btScalar movementLength = movementDirection.length(); - if (movementLength>SIMD_EPSILON) - { - movementDirection.normalize(); - - btVector3 reflectDir = computeReflectionDirection (movementDirection, hitNormal); - reflectDir.normalize(); - - btVector3 parallelDir, perpindicularDir; - - parallelDir = parallelComponent (reflectDir, hitNormal); - perpindicularDir = perpindicularComponent (reflectDir, hitNormal); - - m_targetPosition = m_currentPosition; - if (0)//tangentMag != 0.0) - { - btVector3 parComponent = parallelDir * btScalar (tangentMag*movementLength); -// printf("parComponent=%f,%f,%f\n",parComponent[0],parComponent[1],parComponent[2]); - m_targetPosition += parComponent; - } - - if (normalMag != 0.0) - { - btVector3 perpComponent = perpindicularDir * btScalar (normalMag*movementLength); -// printf("perpComponent=%f,%f,%f\n",perpComponent[0],perpComponent[1],perpComponent[2]); - m_targetPosition += perpComponent; - } - } else - { -// printf("movementLength don't normalize a zero vector\n"); - } -} - -void btKinematicCharacterController::stepForwardAndStrafe ( btCollisionWorld* collisionWorld, const btVector3& walkMove) -{ - // printf("m_normalizedDirection=%f,%f,%f\n", - // m_normalizedDirection[0],m_normalizedDirection[1],m_normalizedDirection[2]); - // phase 2: forward and strafe - btTransform start, end; - - m_targetPosition = m_currentPosition + walkMove; - - start.setIdentity (); - end.setIdentity (); - - btScalar fraction = 1.0; - btScalar distance2 = (m_currentPosition-m_targetPosition).length2(); -// printf("distance2=%f\n",distance2); - - int maxIter = 10; - - while (fraction > btScalar(0.01) && maxIter-- > 0) - { - start.setOrigin (m_currentPosition); - end.setOrigin (m_targetPosition); - btVector3 sweepDirNegative(m_currentPosition - m_targetPosition); - - start.setRotation(m_currentOrientation); - end.setRotation(m_targetOrientation); - - btKinematicClosestNotMeConvexResultCallback callback (m_ghostObject, sweepDirNegative, btScalar(0.0)); - callback.m_collisionFilterGroup = getGhostObject()->getBroadphaseHandle()->m_collisionFilterGroup; - callback.m_collisionFilterMask = getGhostObject()->getBroadphaseHandle()->m_collisionFilterMask; - - - btScalar margin = m_convexShape->getMargin(); - m_convexShape->setMargin(margin + m_addedMargin); - - if (!(start == end)) - { - if (m_useGhostObjectSweepTest) - { - m_ghostObject->convexSweepTest(m_convexShape, start, end, callback, collisionWorld->getDispatchInfo().m_allowedCcdPenetration); - } - else - { - collisionWorld->convexSweepTest(m_convexShape, start, end, callback, collisionWorld->getDispatchInfo().m_allowedCcdPenetration); - } - } - m_convexShape->setMargin(margin); - - - fraction -= callback.m_closestHitFraction; - - if (callback.hasHit() && m_ghostObject->hasContactResponse() && needsCollision(m_ghostObject, callback.m_hitCollisionObject)) - { - // we moved only a fraction - //btScalar hitDistance; - //hitDistance = (callback.m_hitPointWorld - m_currentPosition).length(); - -// m_currentPosition.setInterpolate3 (m_currentPosition, m_targetPosition, callback.m_closestHitFraction); - - updateTargetPositionBasedOnCollision (callback.m_hitNormalWorld); - btVector3 currentDir = m_targetPosition - m_currentPosition; - distance2 = currentDir.length2(); - if (distance2 > SIMD_EPSILON) - { - currentDir.normalize(); - /* See Quake2: "If velocity is against original velocity, stop ead to avoid tiny oscilations in sloping corners." */ - if (currentDir.dot(m_normalizedDirection) <= btScalar(0.0)) - { - break; - } - } else - { -// printf("currentDir: don't normalize a zero vector\n"); - break; - } - - } - else - { - m_currentPosition = m_targetPosition; - } - } -} - -void btKinematicCharacterController::stepDown ( btCollisionWorld* collisionWorld, btScalar dt) -{ - btTransform start, end, end_double; - bool runonce = false; - - // phase 3: down - /*btScalar additionalDownStep = (m_wasOnGround && !onGround()) ? m_stepHeight : 0.0; - btVector3 step_drop = m_up * (m_currentStepOffset + additionalDownStep); - btScalar downVelocity = (additionalDownStep == 0.0 && m_verticalVelocity<0.0?-m_verticalVelocity:0.0) * dt; - btVector3 gravity_drop = m_up * downVelocity; - m_targetPosition -= (step_drop + gravity_drop);*/ - - btVector3 orig_position = m_targetPosition; - - btScalar downVelocity = (m_verticalVelocity<0.f?-m_verticalVelocity:0.f) * dt; - - if (m_verticalVelocity > 0.0) - return; - - if(downVelocity > 0.0 && downVelocity > m_fallSpeed - && (m_wasOnGround || !m_wasJumping)) - downVelocity = m_fallSpeed; - - btVector3 step_drop = m_up * (m_currentStepOffset + downVelocity); - m_targetPosition -= step_drop; - - btKinematicClosestNotMeConvexResultCallback callback(m_ghostObject, m_up, m_maxSlopeCosine); - callback.m_collisionFilterGroup = getGhostObject()->getBroadphaseHandle()->m_collisionFilterGroup; - callback.m_collisionFilterMask = getGhostObject()->getBroadphaseHandle()->m_collisionFilterMask; - - btKinematicClosestNotMeConvexResultCallback callback2(m_ghostObject, m_up, m_maxSlopeCosine); - callback2.m_collisionFilterGroup = getGhostObject()->getBroadphaseHandle()->m_collisionFilterGroup; - callback2.m_collisionFilterMask = getGhostObject()->getBroadphaseHandle()->m_collisionFilterMask; - - while (1) - { - start.setIdentity (); - end.setIdentity (); - - end_double.setIdentity (); - - start.setOrigin (m_currentPosition); - end.setOrigin (m_targetPosition); - - start.setRotation(m_currentOrientation); - end.setRotation(m_targetOrientation); - - //set double test for 2x the step drop, to check for a large drop vs small drop - end_double.setOrigin (m_targetPosition - step_drop); - - if (m_useGhostObjectSweepTest) - { - m_ghostObject->convexSweepTest (m_convexShape, start, end, callback, collisionWorld->getDispatchInfo().m_allowedCcdPenetration); - - if (!callback.hasHit() && m_ghostObject->hasContactResponse()) - { - //test a double fall height, to see if the character should interpolate it's fall (full) or not (partial) - m_ghostObject->convexSweepTest (m_convexShape, start, end_double, callback2, collisionWorld->getDispatchInfo().m_allowedCcdPenetration); - } - } else - { - collisionWorld->convexSweepTest (m_convexShape, start, end, callback, collisionWorld->getDispatchInfo().m_allowedCcdPenetration); - - if (!callback.hasHit() && m_ghostObject->hasContactResponse()) - { - //test a double fall height, to see if the character should interpolate it's fall (large) or not (small) - collisionWorld->convexSweepTest (m_convexShape, start, end_double, callback2, collisionWorld->getDispatchInfo().m_allowedCcdPenetration); - } - } - - btScalar downVelocity2 = (m_verticalVelocity<0.f?-m_verticalVelocity:0.f) * dt; - bool has_hit; - if (bounce_fix == true) - has_hit = (callback.hasHit() || callback2.hasHit()) && m_ghostObject->hasContactResponse() && needsCollision(m_ghostObject, callback.m_hitCollisionObject); - else - has_hit = callback2.hasHit() && m_ghostObject->hasContactResponse() && needsCollision(m_ghostObject, callback2.m_hitCollisionObject); - - btScalar stepHeight = 0.0f; - if (m_verticalVelocity < 0.0) - stepHeight = m_stepHeight; - - if (downVelocity2 > 0.0 && downVelocity2 < stepHeight && has_hit == true && runonce == false - && (m_wasOnGround || !m_wasJumping)) - { - //redo the velocity calculation when falling a small amount, for fast stairs motion - //for larger falls, use the smoother/slower interpolated movement by not touching the target position - - m_targetPosition = orig_position; - downVelocity = stepHeight; - - step_drop = m_up * (m_currentStepOffset + downVelocity); - m_targetPosition -= step_drop; - runonce = true; - continue; //re-run previous tests - } - break; - } - - if ((m_ghostObject->hasContactResponse() && (callback.hasHit() && needsCollision(m_ghostObject, callback.m_hitCollisionObject))) || runonce == true) - { - // we dropped a fraction of the height -> hit floor - btScalar fraction = (m_currentPosition.getY() - callback.m_hitPointWorld.getY()) / 2; - - //printf("hitpoint: %g - pos %g\n", callback.m_hitPointWorld.getY(), m_currentPosition.getY()); - - if (bounce_fix == true) - { - if (full_drop == true) - m_currentPosition.setInterpolate3 (m_currentPosition, m_targetPosition, callback.m_closestHitFraction); - else - //due to errors in the closestHitFraction variable when used with large polygons, calculate the hit fraction manually - m_currentPosition.setInterpolate3 (m_currentPosition, m_targetPosition, fraction); - } - else - m_currentPosition.setInterpolate3 (m_currentPosition, m_targetPosition, callback.m_closestHitFraction); - - full_drop = false; - - m_verticalVelocity = 0.0; - m_verticalOffset = 0.0; - m_wasJumping = false; - } else { - // we dropped the full height - - full_drop = true; - - if (bounce_fix == true) - { - downVelocity = (m_verticalVelocity<0.f?-m_verticalVelocity:0.f) * dt; - if (downVelocity > m_fallSpeed && (m_wasOnGround || !m_wasJumping)) - { - m_targetPosition += step_drop; //undo previous target change - downVelocity = m_fallSpeed; - step_drop = m_up * (m_currentStepOffset + downVelocity); - m_targetPosition -= step_drop; - } - } - //printf("full drop - %g, %g\n", m_currentPosition.getY(), m_targetPosition.getY()); - - m_currentPosition = m_targetPosition; - } -} - - - -void btKinematicCharacterController::setWalkDirection -( -const btVector3& walkDirection -) -{ - m_useWalkDirection = true; - m_walkDirection = walkDirection; - m_normalizedDirection = getNormalizedVector(m_walkDirection); -} - - - -void btKinematicCharacterController::setVelocityForTimeInterval -( -const btVector3& velocity, -btScalar timeInterval -) -{ -// printf("setVelocity!\n"); -// printf(" interval: %f\n", timeInterval); -// printf(" velocity: (%f, %f, %f)\n", -// velocity.x(), velocity.y(), velocity.z()); - - m_useWalkDirection = false; - m_walkDirection = velocity; - m_normalizedDirection = getNormalizedVector(m_walkDirection); - m_velocityTimeInterval += timeInterval; -} - -void btKinematicCharacterController::setAngularVelocity(const btVector3& velocity) -{ - m_AngVel = velocity; -} - -const btVector3& btKinematicCharacterController::getAngularVelocity() const -{ - return m_AngVel; -} - -void btKinematicCharacterController::setLinearVelocity(const btVector3& velocity) -{ - m_walkDirection = velocity; - - // HACK: if we are moving in the direction of the up, treat it as a jump :( - if (m_walkDirection.length2() > 0) - { - btVector3 w = velocity.normalized(); - btScalar c = w.dot(m_up); - if (c != 0) - { - //there is a component in walkdirection for vertical velocity - btVector3 upComponent = m_up * (btSin(SIMD_HALF_PI - btAcos(c)) * m_walkDirection.length()); - m_walkDirection -= upComponent; - m_verticalVelocity = (c < 0.0f ? -1 : 1) * upComponent.length(); - - if (c > 0.0f) - { - m_wasJumping = true; - m_jumpPosition = m_ghostObject->getWorldTransform().getOrigin(); - } - } - } - else - m_verticalVelocity = 0.0f; -} - -btVector3 btKinematicCharacterController::getLinearVelocity() const -{ - return m_walkDirection + (m_verticalVelocity * m_up); -} - -void btKinematicCharacterController::reset ( btCollisionWorld* collisionWorld ) -{ - m_verticalVelocity = 0.0; - m_verticalOffset = 0.0; - m_wasOnGround = false; - m_wasJumping = false; - m_walkDirection.setValue(0,0,0); - m_velocityTimeInterval = 0.0; - - //clear pair cache - btHashedOverlappingPairCache *cache = m_ghostObject->getOverlappingPairCache(); - while (cache->getOverlappingPairArray().size() > 0) - { - cache->removeOverlappingPair(cache->getOverlappingPairArray()[0].m_pProxy0, cache->getOverlappingPairArray()[0].m_pProxy1, collisionWorld->getDispatcher()); - } -} - -void btKinematicCharacterController::warp (const btVector3& origin) -{ - btTransform xform; - xform.setIdentity(); - xform.setOrigin (origin); - m_ghostObject->setWorldTransform (xform); -} - - -void btKinematicCharacterController::preStep ( btCollisionWorld* collisionWorld) -{ - m_currentPosition = m_ghostObject->getWorldTransform().getOrigin(); - m_targetPosition = m_currentPosition; - - m_currentOrientation = m_ghostObject->getWorldTransform().getRotation(); - m_targetOrientation = m_currentOrientation; -// printf("m_targetPosition=%f,%f,%f\n",m_targetPosition[0],m_targetPosition[1],m_targetPosition[2]); -} - -void btKinematicCharacterController::playerStep ( btCollisionWorld* collisionWorld, btScalar dt) -{ -// printf("playerStep(): "); -// printf(" dt = %f", dt); - - if (m_AngVel.length2() > 0.0f) - { - m_AngVel *= btPow(btScalar(1) - m_angularDamping, dt); - } - - // integrate for angular velocity - if (m_AngVel.length2() > 0.0f) - { - btTransform xform; - xform = m_ghostObject->getWorldTransform(); - - btQuaternion rot(m_AngVel.normalized(), m_AngVel.length() * dt); - - btQuaternion orn = rot * xform.getRotation(); - - xform.setRotation(orn); - m_ghostObject->setWorldTransform(xform); - - m_currentPosition = m_ghostObject->getWorldTransform().getOrigin(); - m_targetPosition = m_currentPosition; - m_currentOrientation = m_ghostObject->getWorldTransform().getRotation(); - m_targetOrientation = m_currentOrientation; - } - - // quick check... - if (!m_useWalkDirection && (m_velocityTimeInterval <= 0.0)) { -// printf("\n"); - return; // no motion - } - - m_wasOnGround = onGround(); - - //btVector3 lvel = m_walkDirection; - //btScalar c = 0.0f; - - if (m_walkDirection.length2() > 0) - { - // apply damping - m_walkDirection *= btPow(btScalar(1) - m_linearDamping, dt); - } - - m_verticalVelocity *= btPow(btScalar(1) - m_linearDamping, dt); - - // Update fall velocity. - m_verticalVelocity -= m_gravity * dt; - if (m_verticalVelocity > 0.0 && m_verticalVelocity > m_jumpSpeed) - { - m_verticalVelocity = m_jumpSpeed; - } - if (m_verticalVelocity < 0.0 && btFabs(m_verticalVelocity) > btFabs(m_fallSpeed)) - { - m_verticalVelocity = -btFabs(m_fallSpeed); - } - m_verticalOffset = m_verticalVelocity * dt; - - btTransform xform; - xform = m_ghostObject->getWorldTransform(); - -// printf("walkDirection(%f,%f,%f)\n",walkDirection[0],walkDirection[1],walkDirection[2]); -// printf("walkSpeed=%f\n",walkSpeed); - - stepUp(collisionWorld); - //todo: Experimenting with behavior of controller when it hits a ceiling.. - //bool hitUp = stepUp (collisionWorld); - //if (hitUp) - //{ - // m_verticalVelocity -= m_gravity * dt; - // if (m_verticalVelocity > 0.0 && m_verticalVelocity > m_jumpSpeed) - // { - // m_verticalVelocity = m_jumpSpeed; - // } - // if (m_verticalVelocity < 0.0 && btFabs(m_verticalVelocity) > btFabs(m_fallSpeed)) - // { - // m_verticalVelocity = -btFabs(m_fallSpeed); - // } - // m_verticalOffset = m_verticalVelocity * dt; - - // xform = m_ghostObject->getWorldTransform(); - //} - - if (m_useWalkDirection) { - stepForwardAndStrafe (collisionWorld, m_walkDirection); - } else { - //printf(" time: %f", m_velocityTimeInterval); - // still have some time left for moving! - btScalar dtMoving = - (dt < m_velocityTimeInterval) ? dt : m_velocityTimeInterval; - m_velocityTimeInterval -= dt; - - // how far will we move while we are moving? - btVector3 move = m_walkDirection * dtMoving; - - //printf(" dtMoving: %f", dtMoving); - - // okay, step - stepForwardAndStrafe(collisionWorld, move); - } - stepDown (collisionWorld, dt); - - //todo: Experimenting with max jump height - //if (m_wasJumping) - //{ - // btScalar ds = m_currentPosition[m_upAxis] - m_jumpPosition[m_upAxis]; - // if (ds > m_maxJumpHeight) - // { - // // substract the overshoot - // m_currentPosition[m_upAxis] -= ds - m_maxJumpHeight; - - // // max height was reached, so potential energy is at max - // // and kinematic energy is 0, thus velocity is 0. - // if (m_verticalVelocity > 0.0) - // m_verticalVelocity = 0.0; - // } - //} - // printf("\n"); - - xform.setOrigin (m_currentPosition); - m_ghostObject->setWorldTransform (xform); - - int numPenetrationLoops = 0; - m_touchingContact = false; - while (recoverFromPenetration(collisionWorld)) - { - numPenetrationLoops++; - m_touchingContact = true; - if (numPenetrationLoops > 4) - { - //printf("character could not recover from penetration = %d\n", numPenetrationLoops); - break; - } - } -} - -void btKinematicCharacterController::setFallSpeed (btScalar fallSpeed) -{ - m_fallSpeed = fallSpeed; -} - -void btKinematicCharacterController::setJumpSpeed (btScalar jumpSpeed) -{ - m_jumpSpeed = jumpSpeed; - m_SetjumpSpeed = m_jumpSpeed; -} - -void btKinematicCharacterController::setMaxJumpHeight (btScalar maxJumpHeight) -{ - m_maxJumpHeight = maxJumpHeight; -} - -bool btKinematicCharacterController::canJump () const -{ - return onGround(); -} - -void btKinematicCharacterController::jump(const btVector3& v) -{ - m_jumpSpeed = v.length2() == 0 ? m_SetjumpSpeed : v.length(); - m_verticalVelocity = m_jumpSpeed; - m_wasJumping = true; - - m_jumpAxis = v.length2() == 0 ? m_up : v.normalized(); - - m_jumpPosition = m_ghostObject->getWorldTransform().getOrigin(); - -#if 0 - currently no jumping. - btTransform xform; - m_rigidBody->getMotionState()->getWorldTransform (xform); - btVector3 up = xform.getBasis()[1]; - up.normalize (); - btScalar magnitude = (btScalar(1.0)/m_rigidBody->getInvMass()) * btScalar(8.0); - m_rigidBody->applyCentralImpulse (up * magnitude); -#endif -} - -void btKinematicCharacterController::setGravity(const btVector3& gravity) -{ - if (gravity.length2() > 0) setUpVector(-gravity); - - m_gravity = gravity.length(); -} - -btVector3 btKinematicCharacterController::getGravity() const -{ - return -m_gravity * m_up; -} - -void btKinematicCharacterController::setMaxSlope(btScalar slopeRadians) -{ - m_maxSlopeRadians = slopeRadians; - m_maxSlopeCosine = btCos(slopeRadians); -} - -btScalar btKinematicCharacterController::getMaxSlope() const -{ - return m_maxSlopeRadians; -} - -void btKinematicCharacterController::setMaxPenetrationDepth(btScalar d) -{ - m_maxPenetrationDepth = d; -} - -btScalar btKinematicCharacterController::getMaxPenetrationDepth() const -{ - return m_maxPenetrationDepth; -} - -bool btKinematicCharacterController::onGround () const -{ - return (fabs(m_verticalVelocity) < SIMD_EPSILON) && (fabs(m_verticalOffset) < SIMD_EPSILON); -} - -void btKinematicCharacterController::setStepHeight(btScalar h) -{ - m_stepHeight = h; -} - -btVector3* btKinematicCharacterController::getUpAxisDirections() -{ - static btVector3 sUpAxisDirection[3] = { btVector3(1.0f, 0.0f, 0.0f), btVector3(0.0f, 1.0f, 0.0f), btVector3(0.0f, 0.0f, 1.0f) }; - - return sUpAxisDirection; -} - -void btKinematicCharacterController::debugDraw(btIDebugDraw* debugDrawer) -{ -} - -void btKinematicCharacterController::setUpInterpolate(bool value) -{ - m_interpolateUp = value; -} - -void btKinematicCharacterController::setUp(const btVector3& up) -{ - if (up.length2() > 0 && m_gravity > 0.0f) - { - setGravity(-m_gravity * up.normalized()); - return; - } - - setUpVector(up); -} - -void btKinematicCharacterController::setUpVector(const btVector3& up) -{ - if (m_up == up) - return; - - btVector3 u = m_up; - - if (up.length2() > 0) - m_up = up.normalized(); - else - m_up = btVector3(0.0, 0.0, 0.0); - - if (!m_ghostObject) return; - btQuaternion rot = getRotation(m_up, u); - - //set orientation with new up - btTransform xform; - xform = m_ghostObject->getWorldTransform(); - btQuaternion orn = rot.inverse() * xform.getRotation(); - xform.setRotation(orn); - m_ghostObject->setWorldTransform(xform); -} - -btQuaternion btKinematicCharacterController::getRotation(btVector3& v0, btVector3& v1) const -{ - if (v0.length2() == 0.0f || v1.length2() == 0.0f) - { - btQuaternion q; - return q; - } - - return shortestArcQuatNormalize2(v0, v1); -} - diff --git a/thirdparty/bullet/src/BulletDynamics/Character/btKinematicCharacterController.h b/thirdparty/bullet/src/BulletDynamics/Character/btKinematicCharacterController.h deleted file mode 100644 index 00c59c0248..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Character/btKinematicCharacterController.h +++ /dev/null @@ -1,204 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2008 Erwin Coumans http://bulletphysics.com - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - - -#ifndef BT_KINEMATIC_CHARACTER_CONTROLLER_H -#define BT_KINEMATIC_CHARACTER_CONTROLLER_H - -#include "LinearMath/btVector3.h" - -#include "btCharacterControllerInterface.h" - -#include "BulletCollision/BroadphaseCollision/btCollisionAlgorithm.h" - - -class btCollisionShape; -class btConvexShape; -class btRigidBody; -class btCollisionWorld; -class btCollisionDispatcher; -class btPairCachingGhostObject; - -///btKinematicCharacterController is an object that supports a sliding motion in a world. -///It uses a ghost object and convex sweep test to test for upcoming collisions. This is combined with discrete collision detection to recover from penetrations. -///Interaction between btKinematicCharacterController and dynamic rigid bodies needs to be explicity implemented by the user. -ATTRIBUTE_ALIGNED16(class) btKinematicCharacterController : public btCharacterControllerInterface -{ -protected: - - btScalar m_halfHeight; - - btPairCachingGhostObject* m_ghostObject; - btConvexShape* m_convexShape;//is also in m_ghostObject, but it needs to be convex, so we store it here to avoid upcast - - btScalar m_maxPenetrationDepth; - btScalar m_verticalVelocity; - btScalar m_verticalOffset; - btScalar m_fallSpeed; - btScalar m_jumpSpeed; - btScalar m_SetjumpSpeed; - btScalar m_maxJumpHeight; - btScalar m_maxSlopeRadians; // Slope angle that is set (used for returning the exact value) - btScalar m_maxSlopeCosine; // Cosine equivalent of m_maxSlopeRadians (calculated once when set, for optimization) - btScalar m_gravity; - - btScalar m_turnAngle; - - btScalar m_stepHeight; - - btScalar m_addedMargin;//@todo: remove this and fix the code - - ///this is the desired walk direction, set by the user - btVector3 m_walkDirection; - btVector3 m_normalizedDirection; - btVector3 m_AngVel; - - btVector3 m_jumpPosition; - - //some internal variables - btVector3 m_currentPosition; - btScalar m_currentStepOffset; - btVector3 m_targetPosition; - - btQuaternion m_currentOrientation; - btQuaternion m_targetOrientation; - - ///keep track of the contact manifolds - btManifoldArray m_manifoldArray; - - bool m_touchingContact; - btVector3 m_touchingNormal; - - btScalar m_linearDamping; - btScalar m_angularDamping; - - bool m_wasOnGround; - bool m_wasJumping; - bool m_useGhostObjectSweepTest; - bool m_useWalkDirection; - btScalar m_velocityTimeInterval; - btVector3 m_up; - btVector3 m_jumpAxis; - - static btVector3* getUpAxisDirections(); - bool m_interpolateUp; - bool full_drop; - bool bounce_fix; - - btVector3 computeReflectionDirection (const btVector3& direction, const btVector3& normal); - btVector3 parallelComponent (const btVector3& direction, const btVector3& normal); - btVector3 perpindicularComponent (const btVector3& direction, const btVector3& normal); - - bool recoverFromPenetration ( btCollisionWorld* collisionWorld); - void stepUp (btCollisionWorld* collisionWorld); - void updateTargetPositionBasedOnCollision (const btVector3& hit_normal, btScalar tangentMag = btScalar(0.0), btScalar normalMag = btScalar(1.0)); - void stepForwardAndStrafe (btCollisionWorld* collisionWorld, const btVector3& walkMove); - void stepDown (btCollisionWorld* collisionWorld, btScalar dt); - - virtual bool needsCollision(const btCollisionObject* body0, const btCollisionObject* body1); - - void setUpVector(const btVector3& up); - - btQuaternion getRotation(btVector3& v0, btVector3& v1) const; - -public: - - BT_DECLARE_ALIGNED_ALLOCATOR(); - - btKinematicCharacterController (btPairCachingGhostObject* ghostObject,btConvexShape* convexShape,btScalar stepHeight, const btVector3& up = btVector3(1.0,0.0,0.0)); - ~btKinematicCharacterController (); - - - ///btActionInterface interface - virtual void updateAction( btCollisionWorld* collisionWorld,btScalar deltaTime) - { - preStep ( collisionWorld); - playerStep (collisionWorld, deltaTime); - } - - ///btActionInterface interface - void debugDraw(btIDebugDraw* debugDrawer); - - void setUp(const btVector3& up); - - const btVector3& getUp() { return m_up; } - - /// This should probably be called setPositionIncrementPerSimulatorStep. - /// This is neither a direction nor a velocity, but the amount to - /// increment the position each simulation iteration, regardless - /// of dt. - /// This call will reset any velocity set by setVelocityForTimeInterval(). - virtual void setWalkDirection(const btVector3& walkDirection); - - /// Caller provides a velocity with which the character should move for - /// the given time period. After the time period, velocity is reset - /// to zero. - /// This call will reset any walk direction set by setWalkDirection(). - /// Negative time intervals will result in no motion. - virtual void setVelocityForTimeInterval(const btVector3& velocity, - btScalar timeInterval); - - virtual void setAngularVelocity(const btVector3& velocity); - virtual const btVector3& getAngularVelocity() const; - - virtual void setLinearVelocity(const btVector3& velocity); - virtual btVector3 getLinearVelocity() const; - - void setLinearDamping(btScalar d) { m_linearDamping = btClamped(d, (btScalar)btScalar(0.0), (btScalar)btScalar(1.0)); } - btScalar getLinearDamping() const { return m_linearDamping; } - void setAngularDamping(btScalar d) { m_angularDamping = btClamped(d, (btScalar)btScalar(0.0), (btScalar)btScalar(1.0)); } - btScalar getAngularDamping() const { return m_angularDamping; } - - void reset ( btCollisionWorld* collisionWorld ); - void warp (const btVector3& origin); - - void preStep ( btCollisionWorld* collisionWorld); - void playerStep ( btCollisionWorld* collisionWorld, btScalar dt); - - void setStepHeight(btScalar h); - btScalar getStepHeight() const { return m_stepHeight; } - void setFallSpeed (btScalar fallSpeed); - btScalar getFallSpeed() const { return m_fallSpeed; } - void setJumpSpeed (btScalar jumpSpeed); - btScalar getJumpSpeed() const { return m_jumpSpeed; } - void setMaxJumpHeight (btScalar maxJumpHeight); - bool canJump () const; - - void jump(const btVector3& v = btVector3(0, 0, 0)); - - void applyImpulse(const btVector3& v) { jump(v); } - - void setGravity(const btVector3& gravity); - btVector3 getGravity() const; - - /// The max slope determines the maximum angle that the controller can walk up. - /// The slope angle is measured in radians. - void setMaxSlope(btScalar slopeRadians); - btScalar getMaxSlope() const; - - void setMaxPenetrationDepth(btScalar d); - btScalar getMaxPenetrationDepth() const; - - btPairCachingGhostObject* getGhostObject(); - void setUseGhostSweepTest(bool useGhostObjectSweepTest) - { - m_useGhostObjectSweepTest = useGhostObjectSweepTest; - } - - bool onGround () const; - void setUpInterpolate (bool value); -}; - -#endif // BT_KINEMATIC_CHARACTER_CONTROLLER_H diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btConeTwistConstraint.cpp b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btConeTwistConstraint.cpp deleted file mode 100644 index 0572256f74..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btConeTwistConstraint.cpp +++ /dev/null @@ -1,1143 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -btConeTwistConstraint is Copyright (c) 2007 Starbreeze Studios - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. - -Written by: Marcus Hennix -*/ - - -#include "btConeTwistConstraint.h" -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include "LinearMath/btTransformUtil.h" -#include "LinearMath/btMinMax.h" -#include <new> - - - -//#define CONETWIST_USE_OBSOLETE_SOLVER true -#define CONETWIST_USE_OBSOLETE_SOLVER false -#define CONETWIST_DEF_FIX_THRESH btScalar(.05f) - - -SIMD_FORCE_INLINE btScalar computeAngularImpulseDenominator(const btVector3& axis, const btMatrix3x3& invInertiaWorld) -{ - btVector3 vec = axis * invInertiaWorld; - return axis.dot(vec); -} - - - - -btConeTwistConstraint::btConeTwistConstraint(btRigidBody& rbA,btRigidBody& rbB, - const btTransform& rbAFrame,const btTransform& rbBFrame) - :btTypedConstraint(CONETWIST_CONSTRAINT_TYPE, rbA,rbB),m_rbAFrame(rbAFrame),m_rbBFrame(rbBFrame), - m_angularOnly(false), - m_useSolveConstraintObsolete(CONETWIST_USE_OBSOLETE_SOLVER) -{ - init(); -} - -btConeTwistConstraint::btConeTwistConstraint(btRigidBody& rbA,const btTransform& rbAFrame) - :btTypedConstraint(CONETWIST_CONSTRAINT_TYPE,rbA),m_rbAFrame(rbAFrame), - m_angularOnly(false), - m_useSolveConstraintObsolete(CONETWIST_USE_OBSOLETE_SOLVER) -{ - m_rbBFrame = m_rbAFrame; - m_rbBFrame.setOrigin(btVector3(0., 0., 0.)); - init(); -} - - -void btConeTwistConstraint::init() -{ - m_angularOnly = false; - m_solveTwistLimit = false; - m_solveSwingLimit = false; - m_bMotorEnabled = false; - m_maxMotorImpulse = btScalar(-1); - - setLimit(btScalar(BT_LARGE_FLOAT), btScalar(BT_LARGE_FLOAT), btScalar(BT_LARGE_FLOAT)); - m_damping = btScalar(0.01); - m_fixThresh = CONETWIST_DEF_FIX_THRESH; - m_flags = 0; - m_linCFM = btScalar(0.f); - m_linERP = btScalar(0.7f); - m_angCFM = btScalar(0.f); -} - - -void btConeTwistConstraint::getInfo1 (btConstraintInfo1* info) -{ - if (m_useSolveConstraintObsolete) - { - info->m_numConstraintRows = 0; - info->nub = 0; - } - else - { - info->m_numConstraintRows = 3; - info->nub = 3; - calcAngleInfo2(m_rbA.getCenterOfMassTransform(),m_rbB.getCenterOfMassTransform(),m_rbA.getInvInertiaTensorWorld(),m_rbB.getInvInertiaTensorWorld()); - if(m_solveSwingLimit) - { - info->m_numConstraintRows++; - info->nub--; - if((m_swingSpan1 < m_fixThresh) && (m_swingSpan2 < m_fixThresh)) - { - info->m_numConstraintRows++; - info->nub--; - } - } - if(m_solveTwistLimit) - { - info->m_numConstraintRows++; - info->nub--; - } - } -} - -void btConeTwistConstraint::getInfo1NonVirtual (btConstraintInfo1* info) -{ - //always reserve 6 rows: object transform is not available on SPU - info->m_numConstraintRows = 6; - info->nub = 0; - -} - - -void btConeTwistConstraint::getInfo2 (btConstraintInfo2* info) -{ - getInfo2NonVirtual(info,m_rbA.getCenterOfMassTransform(),m_rbB.getCenterOfMassTransform(),m_rbA.getInvInertiaTensorWorld(),m_rbB.getInvInertiaTensorWorld()); -} - -void btConeTwistConstraint::getInfo2NonVirtual (btConstraintInfo2* info,const btTransform& transA,const btTransform& transB,const btMatrix3x3& invInertiaWorldA,const btMatrix3x3& invInertiaWorldB) -{ - calcAngleInfo2(transA,transB,invInertiaWorldA,invInertiaWorldB); - - btAssert(!m_useSolveConstraintObsolete); - // set jacobian - info->m_J1linearAxis[0] = 1; - info->m_J1linearAxis[info->rowskip+1] = 1; - info->m_J1linearAxis[2*info->rowskip+2] = 1; - btVector3 a1 = transA.getBasis() * m_rbAFrame.getOrigin(); - { - btVector3* angular0 = (btVector3*)(info->m_J1angularAxis); - btVector3* angular1 = (btVector3*)(info->m_J1angularAxis+info->rowskip); - btVector3* angular2 = (btVector3*)(info->m_J1angularAxis+2*info->rowskip); - btVector3 a1neg = -a1; - a1neg.getSkewSymmetricMatrix(angular0,angular1,angular2); - } - info->m_J2linearAxis[0] = -1; - info->m_J2linearAxis[info->rowskip+1] = -1; - info->m_J2linearAxis[2*info->rowskip+2] = -1; - btVector3 a2 = transB.getBasis() * m_rbBFrame.getOrigin(); - { - btVector3* angular0 = (btVector3*)(info->m_J2angularAxis); - btVector3* angular1 = (btVector3*)(info->m_J2angularAxis+info->rowskip); - btVector3* angular2 = (btVector3*)(info->m_J2angularAxis+2*info->rowskip); - a2.getSkewSymmetricMatrix(angular0,angular1,angular2); - } - // set right hand side - btScalar linERP = (m_flags & BT_CONETWIST_FLAGS_LIN_ERP) ? m_linERP : info->erp; - btScalar k = info->fps * linERP; - int j; - for (j=0; j<3; j++) - { - info->m_constraintError[j*info->rowskip] = k * (a2[j] + transB.getOrigin()[j] - a1[j] - transA.getOrigin()[j]); - info->m_lowerLimit[j*info->rowskip] = -SIMD_INFINITY; - info->m_upperLimit[j*info->rowskip] = SIMD_INFINITY; - if(m_flags & BT_CONETWIST_FLAGS_LIN_CFM) - { - info->cfm[j*info->rowskip] = m_linCFM; - } - } - int row = 3; - int srow = row * info->rowskip; - btVector3 ax1; - // angular limits - if(m_solveSwingLimit) - { - btScalar *J1 = info->m_J1angularAxis; - btScalar *J2 = info->m_J2angularAxis; - if((m_swingSpan1 < m_fixThresh) && (m_swingSpan2 < m_fixThresh)) - { - btTransform trA = transA*m_rbAFrame; - btVector3 p = trA.getBasis().getColumn(1); - btVector3 q = trA.getBasis().getColumn(2); - int srow1 = srow + info->rowskip; - J1[srow+0] = p[0]; - J1[srow+1] = p[1]; - J1[srow+2] = p[2]; - J1[srow1+0] = q[0]; - J1[srow1+1] = q[1]; - J1[srow1+2] = q[2]; - J2[srow+0] = -p[0]; - J2[srow+1] = -p[1]; - J2[srow+2] = -p[2]; - J2[srow1+0] = -q[0]; - J2[srow1+1] = -q[1]; - J2[srow1+2] = -q[2]; - btScalar fact = info->fps * m_relaxationFactor; - info->m_constraintError[srow] = fact * m_swingAxis.dot(p); - info->m_constraintError[srow1] = fact * m_swingAxis.dot(q); - info->m_lowerLimit[srow] = -SIMD_INFINITY; - info->m_upperLimit[srow] = SIMD_INFINITY; - info->m_lowerLimit[srow1] = -SIMD_INFINITY; - info->m_upperLimit[srow1] = SIMD_INFINITY; - srow = srow1 + info->rowskip; - } - else - { - ax1 = m_swingAxis * m_relaxationFactor * m_relaxationFactor; - J1[srow+0] = ax1[0]; - J1[srow+1] = ax1[1]; - J1[srow+2] = ax1[2]; - J2[srow+0] = -ax1[0]; - J2[srow+1] = -ax1[1]; - J2[srow+2] = -ax1[2]; - btScalar k = info->fps * m_biasFactor; - - info->m_constraintError[srow] = k * m_swingCorrection; - if(m_flags & BT_CONETWIST_FLAGS_ANG_CFM) - { - info->cfm[srow] = m_angCFM; - } - // m_swingCorrection is always positive or 0 - info->m_lowerLimit[srow] = 0; - info->m_upperLimit[srow] = (m_bMotorEnabled && m_maxMotorImpulse >= 0.0f) ? m_maxMotorImpulse : SIMD_INFINITY; - srow += info->rowskip; - } - } - if(m_solveTwistLimit) - { - ax1 = m_twistAxis * m_relaxationFactor * m_relaxationFactor; - btScalar *J1 = info->m_J1angularAxis; - btScalar *J2 = info->m_J2angularAxis; - J1[srow+0] = ax1[0]; - J1[srow+1] = ax1[1]; - J1[srow+2] = ax1[2]; - J2[srow+0] = -ax1[0]; - J2[srow+1] = -ax1[1]; - J2[srow+2] = -ax1[2]; - btScalar k = info->fps * m_biasFactor; - info->m_constraintError[srow] = k * m_twistCorrection; - if(m_flags & BT_CONETWIST_FLAGS_ANG_CFM) - { - info->cfm[srow] = m_angCFM; - } - if(m_twistSpan > 0.0f) - { - - if(m_twistCorrection > 0.0f) - { - info->m_lowerLimit[srow] = 0; - info->m_upperLimit[srow] = SIMD_INFINITY; - } - else - { - info->m_lowerLimit[srow] = -SIMD_INFINITY; - info->m_upperLimit[srow] = 0; - } - } - else - { - info->m_lowerLimit[srow] = -SIMD_INFINITY; - info->m_upperLimit[srow] = SIMD_INFINITY; - } - srow += info->rowskip; - } -} - - - -void btConeTwistConstraint::buildJacobian() -{ - if (m_useSolveConstraintObsolete) - { - m_appliedImpulse = btScalar(0.); - m_accTwistLimitImpulse = btScalar(0.); - m_accSwingLimitImpulse = btScalar(0.); - m_accMotorImpulse = btVector3(0.,0.,0.); - - if (!m_angularOnly) - { - btVector3 pivotAInW = m_rbA.getCenterOfMassTransform()*m_rbAFrame.getOrigin(); - btVector3 pivotBInW = m_rbB.getCenterOfMassTransform()*m_rbBFrame.getOrigin(); - btVector3 relPos = pivotBInW - pivotAInW; - - btVector3 normal[3]; - if (relPos.length2() > SIMD_EPSILON) - { - normal[0] = relPos.normalized(); - } - else - { - normal[0].setValue(btScalar(1.0),0,0); - } - - btPlaneSpace1(normal[0], normal[1], normal[2]); - - for (int i=0;i<3;i++) - { - new (&m_jac[i]) btJacobianEntry( - m_rbA.getCenterOfMassTransform().getBasis().transpose(), - m_rbB.getCenterOfMassTransform().getBasis().transpose(), - pivotAInW - m_rbA.getCenterOfMassPosition(), - pivotBInW - m_rbB.getCenterOfMassPosition(), - normal[i], - m_rbA.getInvInertiaDiagLocal(), - m_rbA.getInvMass(), - m_rbB.getInvInertiaDiagLocal(), - m_rbB.getInvMass()); - } - } - - calcAngleInfo2(m_rbA.getCenterOfMassTransform(),m_rbB.getCenterOfMassTransform(),m_rbA.getInvInertiaTensorWorld(),m_rbB.getInvInertiaTensorWorld()); - } -} - - - -void btConeTwistConstraint::solveConstraintObsolete(btSolverBody& bodyA,btSolverBody& bodyB,btScalar timeStep) -{ - #ifndef __SPU__ - if (m_useSolveConstraintObsolete) - { - btVector3 pivotAInW = m_rbA.getCenterOfMassTransform()*m_rbAFrame.getOrigin(); - btVector3 pivotBInW = m_rbB.getCenterOfMassTransform()*m_rbBFrame.getOrigin(); - - btScalar tau = btScalar(0.3); - - //linear part - if (!m_angularOnly) - { - btVector3 rel_pos1 = pivotAInW - m_rbA.getCenterOfMassPosition(); - btVector3 rel_pos2 = pivotBInW - m_rbB.getCenterOfMassPosition(); - - btVector3 vel1; - bodyA.internalGetVelocityInLocalPointObsolete(rel_pos1,vel1); - btVector3 vel2; - bodyB.internalGetVelocityInLocalPointObsolete(rel_pos2,vel2); - btVector3 vel = vel1 - vel2; - - for (int i=0;i<3;i++) - { - const btVector3& normal = m_jac[i].m_linearJointAxis; - btScalar jacDiagABInv = btScalar(1.) / m_jac[i].getDiagonal(); - - btScalar rel_vel; - rel_vel = normal.dot(vel); - //positional error (zeroth order error) - btScalar depth = -(pivotAInW - pivotBInW).dot(normal); //this is the error projected on the normal - btScalar impulse = depth*tau/timeStep * jacDiagABInv - rel_vel * jacDiagABInv; - m_appliedImpulse += impulse; - - btVector3 ftorqueAxis1 = rel_pos1.cross(normal); - btVector3 ftorqueAxis2 = rel_pos2.cross(normal); - bodyA.internalApplyImpulse(normal*m_rbA.getInvMass(), m_rbA.getInvInertiaTensorWorld()*ftorqueAxis1,impulse); - bodyB.internalApplyImpulse(normal*m_rbB.getInvMass(), m_rbB.getInvInertiaTensorWorld()*ftorqueAxis2,-impulse); - - } - } - - // apply motor - if (m_bMotorEnabled) - { - // compute current and predicted transforms - btTransform trACur = m_rbA.getCenterOfMassTransform(); - btTransform trBCur = m_rbB.getCenterOfMassTransform(); - btVector3 omegaA; bodyA.internalGetAngularVelocity(omegaA); - btVector3 omegaB; bodyB.internalGetAngularVelocity(omegaB); - btTransform trAPred; trAPred.setIdentity(); - btVector3 zerovec(0,0,0); - btTransformUtil::integrateTransform( - trACur, zerovec, omegaA, timeStep, trAPred); - btTransform trBPred; trBPred.setIdentity(); - btTransformUtil::integrateTransform( - trBCur, zerovec, omegaB, timeStep, trBPred); - - // compute desired transforms in world - btTransform trPose(m_qTarget); - btTransform trABDes = m_rbBFrame * trPose * m_rbAFrame.inverse(); - btTransform trADes = trBPred * trABDes; - btTransform trBDes = trAPred * trABDes.inverse(); - - // compute desired omegas in world - btVector3 omegaADes, omegaBDes; - - btTransformUtil::calculateVelocity(trACur, trADes, timeStep, zerovec, omegaADes); - btTransformUtil::calculateVelocity(trBCur, trBDes, timeStep, zerovec, omegaBDes); - - // compute delta omegas - btVector3 dOmegaA = omegaADes - omegaA; - btVector3 dOmegaB = omegaBDes - omegaB; - - // compute weighted avg axis of dOmega (weighting based on inertias) - btVector3 axisA, axisB; - btScalar kAxisAInv = 0, kAxisBInv = 0; - - if (dOmegaA.length2() > SIMD_EPSILON) - { - axisA = dOmegaA.normalized(); - kAxisAInv = getRigidBodyA().computeAngularImpulseDenominator(axisA); - } - - if (dOmegaB.length2() > SIMD_EPSILON) - { - axisB = dOmegaB.normalized(); - kAxisBInv = getRigidBodyB().computeAngularImpulseDenominator(axisB); - } - - btVector3 avgAxis = kAxisAInv * axisA + kAxisBInv * axisB; - - static bool bDoTorque = true; - if (bDoTorque && avgAxis.length2() > SIMD_EPSILON) - { - avgAxis.normalize(); - kAxisAInv = getRigidBodyA().computeAngularImpulseDenominator(avgAxis); - kAxisBInv = getRigidBodyB().computeAngularImpulseDenominator(avgAxis); - btScalar kInvCombined = kAxisAInv + kAxisBInv; - - btVector3 impulse = (kAxisAInv * dOmegaA - kAxisBInv * dOmegaB) / - (kInvCombined * kInvCombined); - - if (m_maxMotorImpulse >= 0) - { - btScalar fMaxImpulse = m_maxMotorImpulse; - if (m_bNormalizedMotorStrength) - fMaxImpulse = fMaxImpulse/kAxisAInv; - - btVector3 newUnclampedAccImpulse = m_accMotorImpulse + impulse; - btScalar newUnclampedMag = newUnclampedAccImpulse.length(); - if (newUnclampedMag > fMaxImpulse) - { - newUnclampedAccImpulse.normalize(); - newUnclampedAccImpulse *= fMaxImpulse; - impulse = newUnclampedAccImpulse - m_accMotorImpulse; - } - m_accMotorImpulse += impulse; - } - - btScalar impulseMag = impulse.length(); - btVector3 impulseAxis = impulse / impulseMag; - - bodyA.internalApplyImpulse(btVector3(0,0,0), m_rbA.getInvInertiaTensorWorld()*impulseAxis, impulseMag); - bodyB.internalApplyImpulse(btVector3(0,0,0), m_rbB.getInvInertiaTensorWorld()*impulseAxis, -impulseMag); - - } - } - else if (m_damping > SIMD_EPSILON) // no motor: do a little damping - { - btVector3 angVelA; bodyA.internalGetAngularVelocity(angVelA); - btVector3 angVelB; bodyB.internalGetAngularVelocity(angVelB); - btVector3 relVel = angVelB - angVelA; - if (relVel.length2() > SIMD_EPSILON) - { - btVector3 relVelAxis = relVel.normalized(); - btScalar m_kDamping = btScalar(1.) / - (getRigidBodyA().computeAngularImpulseDenominator(relVelAxis) + - getRigidBodyB().computeAngularImpulseDenominator(relVelAxis)); - btVector3 impulse = m_damping * m_kDamping * relVel; - - btScalar impulseMag = impulse.length(); - btVector3 impulseAxis = impulse / impulseMag; - bodyA.internalApplyImpulse(btVector3(0,0,0), m_rbA.getInvInertiaTensorWorld()*impulseAxis, impulseMag); - bodyB.internalApplyImpulse(btVector3(0,0,0), m_rbB.getInvInertiaTensorWorld()*impulseAxis, -impulseMag); - } - } - - // joint limits - { - ///solve angular part - btVector3 angVelA; - bodyA.internalGetAngularVelocity(angVelA); - btVector3 angVelB; - bodyB.internalGetAngularVelocity(angVelB); - - // solve swing limit - if (m_solveSwingLimit) - { - btScalar amplitude = m_swingLimitRatio * m_swingCorrection*m_biasFactor/timeStep; - btScalar relSwingVel = (angVelB - angVelA).dot(m_swingAxis); - if (relSwingVel > 0) - amplitude += m_swingLimitRatio * relSwingVel * m_relaxationFactor; - btScalar impulseMag = amplitude * m_kSwing; - - // Clamp the accumulated impulse - btScalar temp = m_accSwingLimitImpulse; - m_accSwingLimitImpulse = btMax(m_accSwingLimitImpulse + impulseMag, btScalar(0.0) ); - impulseMag = m_accSwingLimitImpulse - temp; - - btVector3 impulse = m_swingAxis * impulseMag; - - // don't let cone response affect twist - // (this can happen since body A's twist doesn't match body B's AND we use an elliptical cone limit) - { - btVector3 impulseTwistCouple = impulse.dot(m_twistAxisA) * m_twistAxisA; - btVector3 impulseNoTwistCouple = impulse - impulseTwistCouple; - impulse = impulseNoTwistCouple; - } - - impulseMag = impulse.length(); - btVector3 noTwistSwingAxis = impulse / impulseMag; - - bodyA.internalApplyImpulse(btVector3(0,0,0), m_rbA.getInvInertiaTensorWorld()*noTwistSwingAxis, impulseMag); - bodyB.internalApplyImpulse(btVector3(0,0,0), m_rbB.getInvInertiaTensorWorld()*noTwistSwingAxis, -impulseMag); - } - - - // solve twist limit - if (m_solveTwistLimit) - { - btScalar amplitude = m_twistLimitRatio * m_twistCorrection*m_biasFactor/timeStep; - btScalar relTwistVel = (angVelB - angVelA).dot( m_twistAxis ); - if (relTwistVel > 0) // only damp when moving towards limit (m_twistAxis flipping is important) - amplitude += m_twistLimitRatio * relTwistVel * m_relaxationFactor; - btScalar impulseMag = amplitude * m_kTwist; - - // Clamp the accumulated impulse - btScalar temp = m_accTwistLimitImpulse; - m_accTwistLimitImpulse = btMax(m_accTwistLimitImpulse + impulseMag, btScalar(0.0) ); - impulseMag = m_accTwistLimitImpulse - temp; - - // btVector3 impulse = m_twistAxis * impulseMag; - - bodyA.internalApplyImpulse(btVector3(0,0,0), m_rbA.getInvInertiaTensorWorld()*m_twistAxis,impulseMag); - bodyB.internalApplyImpulse(btVector3(0,0,0), m_rbB.getInvInertiaTensorWorld()*m_twistAxis,-impulseMag); - } - } - } -#else -btAssert(0); -#endif //__SPU__ -} - - - - -void btConeTwistConstraint::updateRHS(btScalar timeStep) -{ - (void)timeStep; - -} - - -#ifndef __SPU__ -void btConeTwistConstraint::calcAngleInfo() -{ - m_swingCorrection = btScalar(0.); - m_twistLimitSign = btScalar(0.); - m_solveTwistLimit = false; - m_solveSwingLimit = false; - - btVector3 b1Axis1(0,0,0),b1Axis2(0,0,0),b1Axis3(0,0,0); - btVector3 b2Axis1(0,0,0),b2Axis2(0,0,0); - - b1Axis1 = getRigidBodyA().getCenterOfMassTransform().getBasis() * this->m_rbAFrame.getBasis().getColumn(0); - b2Axis1 = getRigidBodyB().getCenterOfMassTransform().getBasis() * this->m_rbBFrame.getBasis().getColumn(0); - - btScalar swing1=btScalar(0.),swing2 = btScalar(0.); - - btScalar swx=btScalar(0.),swy = btScalar(0.); - btScalar thresh = btScalar(10.); - btScalar fact; - - // Get Frame into world space - if (m_swingSpan1 >= btScalar(0.05f)) - { - b1Axis2 = getRigidBodyA().getCenterOfMassTransform().getBasis() * this->m_rbAFrame.getBasis().getColumn(1); - swx = b2Axis1.dot(b1Axis1); - swy = b2Axis1.dot(b1Axis2); - swing1 = btAtan2Fast(swy, swx); - fact = (swy*swy + swx*swx) * thresh * thresh; - fact = fact / (fact + btScalar(1.0)); - swing1 *= fact; - } - - if (m_swingSpan2 >= btScalar(0.05f)) - { - b1Axis3 = getRigidBodyA().getCenterOfMassTransform().getBasis() * this->m_rbAFrame.getBasis().getColumn(2); - swx = b2Axis1.dot(b1Axis1); - swy = b2Axis1.dot(b1Axis3); - swing2 = btAtan2Fast(swy, swx); - fact = (swy*swy + swx*swx) * thresh * thresh; - fact = fact / (fact + btScalar(1.0)); - swing2 *= fact; - } - - btScalar RMaxAngle1Sq = 1.0f / (m_swingSpan1*m_swingSpan1); - btScalar RMaxAngle2Sq = 1.0f / (m_swingSpan2*m_swingSpan2); - btScalar EllipseAngle = btFabs(swing1*swing1)* RMaxAngle1Sq + btFabs(swing2*swing2) * RMaxAngle2Sq; - - if (EllipseAngle > 1.0f) - { - m_swingCorrection = EllipseAngle-1.0f; - m_solveSwingLimit = true; - // Calculate necessary axis & factors - m_swingAxis = b2Axis1.cross(b1Axis2* b2Axis1.dot(b1Axis2) + b1Axis3* b2Axis1.dot(b1Axis3)); - m_swingAxis.normalize(); - btScalar swingAxisSign = (b2Axis1.dot(b1Axis1) >= 0.0f) ? 1.0f : -1.0f; - m_swingAxis *= swingAxisSign; - } - - // Twist limits - if (m_twistSpan >= btScalar(0.)) - { - btVector3 b2Axis2 = getRigidBodyB().getCenterOfMassTransform().getBasis() * this->m_rbBFrame.getBasis().getColumn(1); - btQuaternion rotationArc = shortestArcQuat(b2Axis1,b1Axis1); - btVector3 TwistRef = quatRotate(rotationArc,b2Axis2); - btScalar twist = btAtan2Fast( TwistRef.dot(b1Axis3), TwistRef.dot(b1Axis2) ); - m_twistAngle = twist; - -// btScalar lockedFreeFactor = (m_twistSpan > btScalar(0.05f)) ? m_limitSoftness : btScalar(0.); - btScalar lockedFreeFactor = (m_twistSpan > btScalar(0.05f)) ? btScalar(1.0f) : btScalar(0.); - if (twist <= -m_twistSpan*lockedFreeFactor) - { - m_twistCorrection = -(twist + m_twistSpan); - m_solveTwistLimit = true; - m_twistAxis = (b2Axis1 + b1Axis1) * 0.5f; - m_twistAxis.normalize(); - m_twistAxis *= -1.0f; - } - else if (twist > m_twistSpan*lockedFreeFactor) - { - m_twistCorrection = (twist - m_twistSpan); - m_solveTwistLimit = true; - m_twistAxis = (b2Axis1 + b1Axis1) * 0.5f; - m_twistAxis.normalize(); - } - } -} -#endif //__SPU__ - -static btVector3 vTwist(1,0,0); // twist axis in constraint's space - - - -void btConeTwistConstraint::calcAngleInfo2(const btTransform& transA, const btTransform& transB, const btMatrix3x3& invInertiaWorldA,const btMatrix3x3& invInertiaWorldB) -{ - m_swingCorrection = btScalar(0.); - m_twistLimitSign = btScalar(0.); - m_solveTwistLimit = false; - m_solveSwingLimit = false; - // compute rotation of A wrt B (in constraint space) - if (m_bMotorEnabled && (!m_useSolveConstraintObsolete)) - { // it is assumed that setMotorTarget() was alredy called - // and motor target m_qTarget is within constraint limits - // TODO : split rotation to pure swing and pure twist - // compute desired transforms in world - btTransform trPose(m_qTarget); - btTransform trA = transA * m_rbAFrame; - btTransform trB = transB * m_rbBFrame; - btTransform trDeltaAB = trB * trPose * trA.inverse(); - btQuaternion qDeltaAB = trDeltaAB.getRotation(); - btVector3 swingAxis = btVector3(qDeltaAB.x(), qDeltaAB.y(), qDeltaAB.z()); - btScalar swingAxisLen2 = swingAxis.length2(); - if(btFuzzyZero(swingAxisLen2)) - { - return; - } - m_swingAxis = swingAxis; - m_swingAxis.normalize(); - m_swingCorrection = qDeltaAB.getAngle(); - if(!btFuzzyZero(m_swingCorrection)) - { - m_solveSwingLimit = true; - } - return; - } - - - { - // compute rotation of A wrt B (in constraint space) - btQuaternion qA = transA.getRotation() * m_rbAFrame.getRotation(); - btQuaternion qB = transB.getRotation() * m_rbBFrame.getRotation(); - btQuaternion qAB = qB.inverse() * qA; - // split rotation into cone and twist - // (all this is done from B's perspective. Maybe I should be averaging axes...) - btVector3 vConeNoTwist = quatRotate(qAB, vTwist); vConeNoTwist.normalize(); - btQuaternion qABCone = shortestArcQuat(vTwist, vConeNoTwist); qABCone.normalize(); - btQuaternion qABTwist = qABCone.inverse() * qAB; qABTwist.normalize(); - - if (m_swingSpan1 >= m_fixThresh && m_swingSpan2 >= m_fixThresh) - { - btScalar swingAngle, swingLimit = 0; btVector3 swingAxis; - computeConeLimitInfo(qABCone, swingAngle, swingAxis, swingLimit); - - if (swingAngle > swingLimit * m_limitSoftness) - { - m_solveSwingLimit = true; - - // compute limit ratio: 0->1, where - // 0 == beginning of soft limit - // 1 == hard/real limit - m_swingLimitRatio = 1.f; - if (swingAngle < swingLimit && m_limitSoftness < 1.f - SIMD_EPSILON) - { - m_swingLimitRatio = (swingAngle - swingLimit * m_limitSoftness)/ - (swingLimit - swingLimit * m_limitSoftness); - } - - // swing correction tries to get back to soft limit - m_swingCorrection = swingAngle - (swingLimit * m_limitSoftness); - - // adjustment of swing axis (based on ellipse normal) - adjustSwingAxisToUseEllipseNormal(swingAxis); - - // Calculate necessary axis & factors - m_swingAxis = quatRotate(qB, -swingAxis); - - m_twistAxisA.setValue(0,0,0); - - m_kSwing = btScalar(1.) / - (computeAngularImpulseDenominator(m_swingAxis,invInertiaWorldA) + - computeAngularImpulseDenominator(m_swingAxis,invInertiaWorldB)); - } - } - else - { - // you haven't set any limits; - // or you're trying to set at least one of the swing limits too small. (if so, do you really want a conetwist constraint?) - // anyway, we have either hinge or fixed joint - btVector3 ivA = transA.getBasis() * m_rbAFrame.getBasis().getColumn(0); - btVector3 jvA = transA.getBasis() * m_rbAFrame.getBasis().getColumn(1); - btVector3 kvA = transA.getBasis() * m_rbAFrame.getBasis().getColumn(2); - btVector3 ivB = transB.getBasis() * m_rbBFrame.getBasis().getColumn(0); - btVector3 target; - btScalar x = ivB.dot(ivA); - btScalar y = ivB.dot(jvA); - btScalar z = ivB.dot(kvA); - if((m_swingSpan1 < m_fixThresh) && (m_swingSpan2 < m_fixThresh)) - { // fixed. We'll need to add one more row to constraint - if((!btFuzzyZero(y)) || (!(btFuzzyZero(z)))) - { - m_solveSwingLimit = true; - m_swingAxis = -ivB.cross(ivA); - } - } - else - { - if(m_swingSpan1 < m_fixThresh) - { // hinge around Y axis -// if(!(btFuzzyZero(y))) - if((!(btFuzzyZero(x))) || (!(btFuzzyZero(z)))) - { - m_solveSwingLimit = true; - if(m_swingSpan2 >= m_fixThresh) - { - y = btScalar(0.f); - btScalar span2 = btAtan2(z, x); - if(span2 > m_swingSpan2) - { - x = btCos(m_swingSpan2); - z = btSin(m_swingSpan2); - } - else if(span2 < -m_swingSpan2) - { - x = btCos(m_swingSpan2); - z = -btSin(m_swingSpan2); - } - } - } - } - else - { // hinge around Z axis -// if(!btFuzzyZero(z)) - if((!(btFuzzyZero(x))) || (!(btFuzzyZero(y)))) - { - m_solveSwingLimit = true; - if(m_swingSpan1 >= m_fixThresh) - { - z = btScalar(0.f); - btScalar span1 = btAtan2(y, x); - if(span1 > m_swingSpan1) - { - x = btCos(m_swingSpan1); - y = btSin(m_swingSpan1); - } - else if(span1 < -m_swingSpan1) - { - x = btCos(m_swingSpan1); - y = -btSin(m_swingSpan1); - } - } - } - } - target[0] = x * ivA[0] + y * jvA[0] + z * kvA[0]; - target[1] = x * ivA[1] + y * jvA[1] + z * kvA[1]; - target[2] = x * ivA[2] + y * jvA[2] + z * kvA[2]; - target.normalize(); - m_swingAxis = -ivB.cross(target); - m_swingCorrection = m_swingAxis.length(); - - if (!btFuzzyZero(m_swingCorrection)) - m_swingAxis.normalize(); - } - } - - if (m_twistSpan >= btScalar(0.f)) - { - btVector3 twistAxis; - computeTwistLimitInfo(qABTwist, m_twistAngle, twistAxis); - - if (m_twistAngle > m_twistSpan*m_limitSoftness) - { - m_solveTwistLimit = true; - - m_twistLimitRatio = 1.f; - if (m_twistAngle < m_twistSpan && m_limitSoftness < 1.f - SIMD_EPSILON) - { - m_twistLimitRatio = (m_twistAngle - m_twistSpan * m_limitSoftness)/ - (m_twistSpan - m_twistSpan * m_limitSoftness); - } - - // twist correction tries to get back to soft limit - m_twistCorrection = m_twistAngle - (m_twistSpan * m_limitSoftness); - - m_twistAxis = quatRotate(qB, -twistAxis); - - m_kTwist = btScalar(1.) / - (computeAngularImpulseDenominator(m_twistAxis,invInertiaWorldA) + - computeAngularImpulseDenominator(m_twistAxis,invInertiaWorldB)); - } - - if (m_solveSwingLimit) - m_twistAxisA = quatRotate(qA, -twistAxis); - } - else - { - m_twistAngle = btScalar(0.f); - } - } -} - - - -// given a cone rotation in constraint space, (pre: twist must already be removed) -// this method computes its corresponding swing angle and axis. -// more interestingly, it computes the cone/swing limit (angle) for this cone "pose". -void btConeTwistConstraint::computeConeLimitInfo(const btQuaternion& qCone, - btScalar& swingAngle, // out - btVector3& vSwingAxis, // out - btScalar& swingLimit) // out -{ - swingAngle = qCone.getAngle(); - if (swingAngle > SIMD_EPSILON) - { - vSwingAxis = btVector3(qCone.x(), qCone.y(), qCone.z()); - vSwingAxis.normalize(); -#if 0 - // non-zero twist?! this should never happen. - btAssert(fabs(vSwingAxis.x()) <= SIMD_EPSILON)); -#endif - - // Compute limit for given swing. tricky: - // Given a swing axis, we're looking for the intersection with the bounding cone ellipse. - // (Since we're dealing with angles, this ellipse is embedded on the surface of a sphere.) - - // For starters, compute the direction from center to surface of ellipse. - // This is just the perpendicular (ie. rotate 2D vector by PI/2) of the swing axis. - // (vSwingAxis is the cone rotation (in z,y); change vars and rotate to (x,y) coords.) - btScalar xEllipse = vSwingAxis.y(); - btScalar yEllipse = -vSwingAxis.z(); - - // Now, we use the slope of the vector (using x/yEllipse) and find the length - // of the line that intersects the ellipse: - // x^2 y^2 - // --- + --- = 1, where a and b are semi-major axes 2 and 1 respectively (ie. the limits) - // a^2 b^2 - // Do the math and it should be clear. - - swingLimit = m_swingSpan1; // if xEllipse == 0, we have a pure vSwingAxis.z rotation: just use swingspan1 - if (fabs(xEllipse) > SIMD_EPSILON) - { - btScalar surfaceSlope2 = (yEllipse*yEllipse)/(xEllipse*xEllipse); - btScalar norm = 1 / (m_swingSpan2 * m_swingSpan2); - norm += surfaceSlope2 / (m_swingSpan1 * m_swingSpan1); - btScalar swingLimit2 = (1 + surfaceSlope2) / norm; - swingLimit = sqrt(swingLimit2); - } - - // test! - /*swingLimit = m_swingSpan2; - if (fabs(vSwingAxis.z()) > SIMD_EPSILON) - { - btScalar mag_2 = m_swingSpan1*m_swingSpan1 + m_swingSpan2*m_swingSpan2; - btScalar sinphi = m_swingSpan2 / sqrt(mag_2); - btScalar phi = asin(sinphi); - btScalar theta = atan2(fabs(vSwingAxis.y()),fabs(vSwingAxis.z())); - btScalar alpha = 3.14159f - theta - phi; - btScalar sinalpha = sin(alpha); - swingLimit = m_swingSpan1 * sinphi/sinalpha; - }*/ - } - else if (swingAngle < 0) - { - // this should never happen! -#if 0 - btAssert(0); -#endif - } -} - -btVector3 btConeTwistConstraint::GetPointForAngle(btScalar fAngleInRadians, btScalar fLength) const -{ - // compute x/y in ellipse using cone angle (0 -> 2*PI along surface of cone) - btScalar xEllipse = btCos(fAngleInRadians); - btScalar yEllipse = btSin(fAngleInRadians); - - // Use the slope of the vector (using x/yEllipse) and find the length - // of the line that intersects the ellipse: - // x^2 y^2 - // --- + --- = 1, where a and b are semi-major axes 2 and 1 respectively (ie. the limits) - // a^2 b^2 - // Do the math and it should be clear. - - btScalar swingLimit = m_swingSpan1; // if xEllipse == 0, just use axis b (1) - if (fabs(xEllipse) > SIMD_EPSILON) - { - btScalar surfaceSlope2 = (yEllipse*yEllipse)/(xEllipse*xEllipse); - btScalar norm = 1 / (m_swingSpan2 * m_swingSpan2); - norm += surfaceSlope2 / (m_swingSpan1 * m_swingSpan1); - btScalar swingLimit2 = (1 + surfaceSlope2) / norm; - swingLimit = sqrt(swingLimit2); - } - - // convert into point in constraint space: - // note: twist is x-axis, swing 1 and 2 are along the z and y axes respectively - btVector3 vSwingAxis(0, xEllipse, -yEllipse); - btQuaternion qSwing(vSwingAxis, swingLimit); - btVector3 vPointInConstraintSpace(fLength,0,0); - return quatRotate(qSwing, vPointInConstraintSpace); -} - -// given a twist rotation in constraint space, (pre: cone must already be removed) -// this method computes its corresponding angle and axis. -void btConeTwistConstraint::computeTwistLimitInfo(const btQuaternion& qTwist, - btScalar& twistAngle, // out - btVector3& vTwistAxis) // out -{ - btQuaternion qMinTwist = qTwist; - twistAngle = qTwist.getAngle(); - - if (twistAngle > SIMD_PI) // long way around. flip quat and recalculate. - { - qMinTwist = -(qTwist); - twistAngle = qMinTwist.getAngle(); - } - if (twistAngle < 0) - { - // this should never happen -#if 0 - btAssert(0); -#endif - } - - vTwistAxis = btVector3(qMinTwist.x(), qMinTwist.y(), qMinTwist.z()); - if (twistAngle > SIMD_EPSILON) - vTwistAxis.normalize(); -} - - -void btConeTwistConstraint::adjustSwingAxisToUseEllipseNormal(btVector3& vSwingAxis) const -{ - // the swing axis is computed as the "twist-free" cone rotation, - // but the cone limit is not circular, but elliptical (if swingspan1 != swingspan2). - // so, if we're outside the limits, the closest way back inside the cone isn't - // along the vector back to the center. better (and more stable) to use the ellipse normal. - - // convert swing axis to direction from center to surface of ellipse - // (ie. rotate 2D vector by PI/2) - btScalar y = -vSwingAxis.z(); - btScalar z = vSwingAxis.y(); - - // do the math... - if (fabs(z) > SIMD_EPSILON) // avoid division by 0. and we don't need an update if z == 0. - { - // compute gradient/normal of ellipse surface at current "point" - btScalar grad = y/z; - grad *= m_swingSpan2 / m_swingSpan1; - - // adjust y/z to represent normal at point (instead of vector to point) - if (y > 0) - y = fabs(grad * z); - else - y = -fabs(grad * z); - - // convert ellipse direction back to swing axis - vSwingAxis.setZ(-y); - vSwingAxis.setY( z); - vSwingAxis.normalize(); - } -} - - - -void btConeTwistConstraint::setMotorTarget(const btQuaternion &q) -{ - //btTransform trACur = m_rbA.getCenterOfMassTransform(); - //btTransform trBCur = m_rbB.getCenterOfMassTransform(); -// btTransform trABCur = trBCur.inverse() * trACur; -// btQuaternion qABCur = trABCur.getRotation(); -// btTransform trConstraintCur = (trBCur * m_rbBFrame).inverse() * (trACur * m_rbAFrame); - //btQuaternion qConstraintCur = trConstraintCur.getRotation(); - - btQuaternion qConstraint = m_rbBFrame.getRotation().inverse() * q * m_rbAFrame.getRotation(); - setMotorTargetInConstraintSpace(qConstraint); -} - - -void btConeTwistConstraint::setMotorTargetInConstraintSpace(const btQuaternion &q) -{ - m_qTarget = q; - - // clamp motor target to within limits - { - btScalar softness = 1.f;//m_limitSoftness; - - // split into twist and cone - btVector3 vTwisted = quatRotate(m_qTarget, vTwist); - btQuaternion qTargetCone = shortestArcQuat(vTwist, vTwisted); qTargetCone.normalize(); - btQuaternion qTargetTwist = qTargetCone.inverse() * m_qTarget; qTargetTwist.normalize(); - - // clamp cone - if (m_swingSpan1 >= btScalar(0.05f) && m_swingSpan2 >= btScalar(0.05f)) - { - btScalar swingAngle, swingLimit; btVector3 swingAxis; - computeConeLimitInfo(qTargetCone, swingAngle, swingAxis, swingLimit); - - if (fabs(swingAngle) > SIMD_EPSILON) - { - if (swingAngle > swingLimit*softness) - swingAngle = swingLimit*softness; - else if (swingAngle < -swingLimit*softness) - swingAngle = -swingLimit*softness; - qTargetCone = btQuaternion(swingAxis, swingAngle); - } - } - - // clamp twist - if (m_twistSpan >= btScalar(0.05f)) - { - btScalar twistAngle; btVector3 twistAxis; - computeTwistLimitInfo(qTargetTwist, twistAngle, twistAxis); - - if (fabs(twistAngle) > SIMD_EPSILON) - { - // eddy todo: limitSoftness used here??? - if (twistAngle > m_twistSpan*softness) - twistAngle = m_twistSpan*softness; - else if (twistAngle < -m_twistSpan*softness) - twistAngle = -m_twistSpan*softness; - qTargetTwist = btQuaternion(twistAxis, twistAngle); - } - } - - m_qTarget = qTargetCone * qTargetTwist; - } -} - -///override the default global value of a parameter (such as ERP or CFM), optionally provide the axis (0..5). -///If no axis is provided, it uses the default axis for this constraint. -void btConeTwistConstraint::setParam(int num, btScalar value, int axis) -{ - switch(num) - { - case BT_CONSTRAINT_ERP : - case BT_CONSTRAINT_STOP_ERP : - if((axis >= 0) && (axis < 3)) - { - m_linERP = value; - m_flags |= BT_CONETWIST_FLAGS_LIN_ERP; - } - else - { - m_biasFactor = value; - } - break; - case BT_CONSTRAINT_CFM : - case BT_CONSTRAINT_STOP_CFM : - if((axis >= 0) && (axis < 3)) - { - m_linCFM = value; - m_flags |= BT_CONETWIST_FLAGS_LIN_CFM; - } - else - { - m_angCFM = value; - m_flags |= BT_CONETWIST_FLAGS_ANG_CFM; - } - break; - default: - btAssertConstrParams(0); - break; - } -} - -///return the local value of parameter -btScalar btConeTwistConstraint::getParam(int num, int axis) const -{ - btScalar retVal = 0; - switch(num) - { - case BT_CONSTRAINT_ERP : - case BT_CONSTRAINT_STOP_ERP : - if((axis >= 0) && (axis < 3)) - { - btAssertConstrParams(m_flags & BT_CONETWIST_FLAGS_LIN_ERP); - retVal = m_linERP; - } - else if((axis >= 3) && (axis < 6)) - { - retVal = m_biasFactor; - } - else - { - btAssertConstrParams(0); - } - break; - case BT_CONSTRAINT_CFM : - case BT_CONSTRAINT_STOP_CFM : - if((axis >= 0) && (axis < 3)) - { - btAssertConstrParams(m_flags & BT_CONETWIST_FLAGS_LIN_CFM); - retVal = m_linCFM; - } - else if((axis >= 3) && (axis < 6)) - { - btAssertConstrParams(m_flags & BT_CONETWIST_FLAGS_ANG_CFM); - retVal = m_angCFM; - } - else - { - btAssertConstrParams(0); - } - break; - default : - btAssertConstrParams(0); - } - return retVal; -} - - -void btConeTwistConstraint::setFrames(const btTransform & frameA, const btTransform & frameB) -{ - m_rbAFrame = frameA; - m_rbBFrame = frameB; - buildJacobian(); - //calculateTransforms(); -} - - - - diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btConeTwistConstraint.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btConeTwistConstraint.h deleted file mode 100644 index 7a33d01d1e..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btConeTwistConstraint.h +++ /dev/null @@ -1,435 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -btConeTwistConstraint is Copyright (c) 2007 Starbreeze Studios - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. - -Written by: Marcus Hennix -*/ - - - -/* -Overview: - -btConeTwistConstraint can be used to simulate ragdoll joints (upper arm, leg etc). -It is a fixed translation, 3 degree-of-freedom (DOF) rotational "joint". -It divides the 3 rotational DOFs into swing (movement within a cone) and twist. -Swing is divided into swing1 and swing2 which can have different limits, giving an elliptical shape. -(Note: the cone's base isn't flat, so this ellipse is "embedded" on the surface of a sphere.) - -In the contraint's frame of reference: -twist is along the x-axis, -and swing 1 and 2 are along the z and y axes respectively. -*/ - - - -#ifndef BT_CONETWISTCONSTRAINT_H -#define BT_CONETWISTCONSTRAINT_H - -#include "LinearMath/btVector3.h" -#include "btJacobianEntry.h" -#include "btTypedConstraint.h" - -#ifdef BT_USE_DOUBLE_PRECISION -#define btConeTwistConstraintData2 btConeTwistConstraintDoubleData -#define btConeTwistConstraintDataName "btConeTwistConstraintDoubleData" -#else -#define btConeTwistConstraintData2 btConeTwistConstraintData -#define btConeTwistConstraintDataName "btConeTwistConstraintData" -#endif //BT_USE_DOUBLE_PRECISION - - -class btRigidBody; - -enum btConeTwistFlags -{ - BT_CONETWIST_FLAGS_LIN_CFM = 1, - BT_CONETWIST_FLAGS_LIN_ERP = 2, - BT_CONETWIST_FLAGS_ANG_CFM = 4 -}; - -///btConeTwistConstraint can be used to simulate ragdoll joints (upper arm, leg etc) -ATTRIBUTE_ALIGNED16(class) btConeTwistConstraint : public btTypedConstraint -{ -#ifdef IN_PARALLELL_SOLVER -public: -#endif - btJacobianEntry m_jac[3]; //3 orthogonal linear constraints - - btTransform m_rbAFrame; - btTransform m_rbBFrame; - - btScalar m_limitSoftness; - btScalar m_biasFactor; - btScalar m_relaxationFactor; - - btScalar m_damping; - - btScalar m_swingSpan1; - btScalar m_swingSpan2; - btScalar m_twistSpan; - - btScalar m_fixThresh; - - btVector3 m_swingAxis; - btVector3 m_twistAxis; - - btScalar m_kSwing; - btScalar m_kTwist; - - btScalar m_twistLimitSign; - btScalar m_swingCorrection; - btScalar m_twistCorrection; - - btScalar m_twistAngle; - - btScalar m_accSwingLimitImpulse; - btScalar m_accTwistLimitImpulse; - - bool m_angularOnly; - bool m_solveTwistLimit; - bool m_solveSwingLimit; - - bool m_useSolveConstraintObsolete; - - // not yet used... - btScalar m_swingLimitRatio; - btScalar m_twistLimitRatio; - btVector3 m_twistAxisA; - - // motor - bool m_bMotorEnabled; - bool m_bNormalizedMotorStrength; - btQuaternion m_qTarget; - btScalar m_maxMotorImpulse; - btVector3 m_accMotorImpulse; - - // parameters - int m_flags; - btScalar m_linCFM; - btScalar m_linERP; - btScalar m_angCFM; - -protected: - - void init(); - - void computeConeLimitInfo(const btQuaternion& qCone, // in - btScalar& swingAngle, btVector3& vSwingAxis, btScalar& swingLimit); // all outs - - void computeTwistLimitInfo(const btQuaternion& qTwist, // in - btScalar& twistAngle, btVector3& vTwistAxis); // all outs - - void adjustSwingAxisToUseEllipseNormal(btVector3& vSwingAxis) const; - - -public: - - BT_DECLARE_ALIGNED_ALLOCATOR(); - - btConeTwistConstraint(btRigidBody& rbA,btRigidBody& rbB,const btTransform& rbAFrame, const btTransform& rbBFrame); - - btConeTwistConstraint(btRigidBody& rbA,const btTransform& rbAFrame); - - virtual void buildJacobian(); - - virtual void getInfo1 (btConstraintInfo1* info); - - void getInfo1NonVirtual(btConstraintInfo1* info); - - virtual void getInfo2 (btConstraintInfo2* info); - - void getInfo2NonVirtual(btConstraintInfo2* info,const btTransform& transA,const btTransform& transB,const btMatrix3x3& invInertiaWorldA,const btMatrix3x3& invInertiaWorldB); - - virtual void solveConstraintObsolete(btSolverBody& bodyA,btSolverBody& bodyB,btScalar timeStep); - - - void updateRHS(btScalar timeStep); - - - const btRigidBody& getRigidBodyA() const - { - return m_rbA; - } - const btRigidBody& getRigidBodyB() const - { - return m_rbB; - } - - void setAngularOnly(bool angularOnly) - { - m_angularOnly = angularOnly; - } - - bool getAngularOnly() const - { - return m_angularOnly; - } - - void setLimit(int limitIndex,btScalar limitValue) - { - switch (limitIndex) - { - case 3: - { - m_twistSpan = limitValue; - break; - } - case 4: - { - m_swingSpan2 = limitValue; - break; - } - case 5: - { - m_swingSpan1 = limitValue; - break; - } - default: - { - } - }; - } - - btScalar getLimit(int limitIndex) const - { - switch (limitIndex) - { - case 3: - { - return m_twistSpan; - break; - } - case 4: - { - return m_swingSpan2; - break; - } - case 5: - { - return m_swingSpan1; - break; - } - default: - { - btAssert(0 && "Invalid limitIndex specified for btConeTwistConstraint"); - return 0.0; - } - }; - } - - // setLimit(), a few notes: - // _softness: - // 0->1, recommend ~0.8->1. - // describes % of limits where movement is free. - // beyond this softness %, the limit is gradually enforced until the "hard" (1.0) limit is reached. - // _biasFactor: - // 0->1?, recommend 0.3 +/-0.3 or so. - // strength with which constraint resists zeroth order (angular, not angular velocity) limit violation. - // __relaxationFactor: - // 0->1, recommend to stay near 1. - // the lower the value, the less the constraint will fight velocities which violate the angular limits. - void setLimit(btScalar _swingSpan1,btScalar _swingSpan2,btScalar _twistSpan, btScalar _softness = 1.f, btScalar _biasFactor = 0.3f, btScalar _relaxationFactor = 1.0f) - { - m_swingSpan1 = _swingSpan1; - m_swingSpan2 = _swingSpan2; - m_twistSpan = _twistSpan; - - m_limitSoftness = _softness; - m_biasFactor = _biasFactor; - m_relaxationFactor = _relaxationFactor; - } - - const btTransform& getAFrame() const { return m_rbAFrame; }; - const btTransform& getBFrame() const { return m_rbBFrame; }; - - inline int getSolveTwistLimit() - { - return m_solveTwistLimit; - } - - inline int getSolveSwingLimit() - { - return m_solveSwingLimit; - } - - inline btScalar getTwistLimitSign() - { - return m_twistLimitSign; - } - - void calcAngleInfo(); - void calcAngleInfo2(const btTransform& transA, const btTransform& transB,const btMatrix3x3& invInertiaWorldA,const btMatrix3x3& invInertiaWorldB); - - inline btScalar getSwingSpan1() const - { - return m_swingSpan1; - } - inline btScalar getSwingSpan2() const - { - return m_swingSpan2; - } - inline btScalar getTwistSpan() const - { - return m_twistSpan; - } - inline btScalar getLimitSoftness() const - { - return m_limitSoftness; - } - inline btScalar getBiasFactor() const - { - return m_biasFactor; - } - inline btScalar getRelaxationFactor() const - { - return m_relaxationFactor; - } - inline btScalar getTwistAngle() const - { - return m_twistAngle; - } - bool isPastSwingLimit() { return m_solveSwingLimit; } - - btScalar getDamping() const { return m_damping; } - void setDamping(btScalar damping) { m_damping = damping; } - - void enableMotor(bool b) { m_bMotorEnabled = b; } - bool isMotorEnabled() const { return m_bMotorEnabled; } - btScalar getMaxMotorImpulse() const { return m_maxMotorImpulse; } - bool isMaxMotorImpulseNormalized() const { return m_bNormalizedMotorStrength; } - void setMaxMotorImpulse(btScalar maxMotorImpulse) { m_maxMotorImpulse = maxMotorImpulse; m_bNormalizedMotorStrength = false; } - void setMaxMotorImpulseNormalized(btScalar maxMotorImpulse) { m_maxMotorImpulse = maxMotorImpulse; m_bNormalizedMotorStrength = true; } - - btScalar getFixThresh() { return m_fixThresh; } - void setFixThresh(btScalar fixThresh) { m_fixThresh = fixThresh; } - - // setMotorTarget: - // q: the desired rotation of bodyA wrt bodyB. - // note: if q violates the joint limits, the internal target is clamped to avoid conflicting impulses (very bad for stability) - // note: don't forget to enableMotor() - void setMotorTarget(const btQuaternion &q); - const btQuaternion& getMotorTarget() const { return m_qTarget; } - - // same as above, but q is the desired rotation of frameA wrt frameB in constraint space - void setMotorTargetInConstraintSpace(const btQuaternion &q); - - btVector3 GetPointForAngle(btScalar fAngleInRadians, btScalar fLength) const; - - ///override the default global value of a parameter (such as ERP or CFM), optionally provide the axis (0..5). - ///If no axis is provided, it uses the default axis for this constraint. - virtual void setParam(int num, btScalar value, int axis = -1); - - virtual void setFrames(const btTransform& frameA, const btTransform& frameB); - - const btTransform& getFrameOffsetA() const - { - return m_rbAFrame; - } - - const btTransform& getFrameOffsetB() const - { - return m_rbBFrame; - } - - - ///return the local value of parameter - virtual btScalar getParam(int num, int axis = -1) const; - - int getFlags() const - { - return m_flags; - } - - virtual int calculateSerializeBufferSize() const; - - ///fills the dataBuffer and returns the struct name (and 0 on failure) - virtual const char* serialize(void* dataBuffer, btSerializer* serializer) const; - -}; - - - -struct btConeTwistConstraintDoubleData -{ - btTypedConstraintDoubleData m_typeConstraintData; - btTransformDoubleData m_rbAFrame; - btTransformDoubleData m_rbBFrame; - - //limits - double m_swingSpan1; - double m_swingSpan2; - double m_twistSpan; - double m_limitSoftness; - double m_biasFactor; - double m_relaxationFactor; - - double m_damping; - - - -}; - -#ifdef BT_BACKWARDS_COMPATIBLE_SERIALIZATION -///this structure is not used, except for loading pre-2.82 .bullet files -struct btConeTwistConstraintData -{ - btTypedConstraintData m_typeConstraintData; - btTransformFloatData m_rbAFrame; - btTransformFloatData m_rbBFrame; - - //limits - float m_swingSpan1; - float m_swingSpan2; - float m_twistSpan; - float m_limitSoftness; - float m_biasFactor; - float m_relaxationFactor; - - float m_damping; - - char m_pad[4]; - -}; -#endif //BT_BACKWARDS_COMPATIBLE_SERIALIZATION -// - -SIMD_FORCE_INLINE int btConeTwistConstraint::calculateSerializeBufferSize() const -{ - return sizeof(btConeTwistConstraintData2); - -} - - - ///fills the dataBuffer and returns the struct name (and 0 on failure) -SIMD_FORCE_INLINE const char* btConeTwistConstraint::serialize(void* dataBuffer, btSerializer* serializer) const -{ - btConeTwistConstraintData2* cone = (btConeTwistConstraintData2*) dataBuffer; - btTypedConstraint::serialize(&cone->m_typeConstraintData,serializer); - - m_rbAFrame.serialize(cone->m_rbAFrame); - m_rbBFrame.serialize(cone->m_rbBFrame); - - cone->m_swingSpan1 = m_swingSpan1; - cone->m_swingSpan2 = m_swingSpan2; - cone->m_twistSpan = m_twistSpan; - cone->m_limitSoftness = m_limitSoftness; - cone->m_biasFactor = m_biasFactor; - cone->m_relaxationFactor = m_relaxationFactor; - cone->m_damping = m_damping; - - return btConeTwistConstraintDataName; -} - - -#endif //BT_CONETWISTCONSTRAINT_H diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btConstraintSolver.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btConstraintSolver.h deleted file mode 100644 index 890afe6da4..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btConstraintSolver.h +++ /dev/null @@ -1,65 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_CONSTRAINT_SOLVER_H -#define BT_CONSTRAINT_SOLVER_H - -#include "LinearMath/btScalar.h" - -class btPersistentManifold; -class btRigidBody; -class btCollisionObject; -class btTypedConstraint; -struct btContactSolverInfo; -struct btBroadphaseProxy; -class btIDebugDraw; -class btStackAlloc; -class btDispatcher; -/// btConstraintSolver provides solver interface - - -enum btConstraintSolverType -{ - BT_SEQUENTIAL_IMPULSE_SOLVER=1, - BT_MLCP_SOLVER=2, - BT_NNCG_SOLVER=4 -}; - -class btConstraintSolver -{ - -public: - - virtual ~btConstraintSolver() {} - - virtual void prepareSolve (int /* numBodies */, int /* numManifolds */) {;} - - ///solve a group of constraints - virtual btScalar solveGroup(btCollisionObject** bodies,int numBodies,btPersistentManifold** manifold,int numManifolds,btTypedConstraint** constraints,int numConstraints, const btContactSolverInfo& info,class btIDebugDraw* debugDrawer,btDispatcher* dispatcher) = 0; - - virtual void allSolved (const btContactSolverInfo& /* info */,class btIDebugDraw* /* debugDrawer */) {;} - - ///clear internal cached data and reset random seed - virtual void reset() = 0; - - virtual btConstraintSolverType getSolverType() const=0; - - -}; - - - - -#endif //BT_CONSTRAINT_SOLVER_H diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btContactConstraint.cpp b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btContactConstraint.cpp deleted file mode 100644 index 1098d0c96b..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btContactConstraint.cpp +++ /dev/null @@ -1,177 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - - -#include "btContactConstraint.h" -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include "LinearMath/btVector3.h" -#include "btJacobianEntry.h" -#include "btContactSolverInfo.h" -#include "LinearMath/btMinMax.h" -#include "BulletCollision/NarrowPhaseCollision/btManifoldPoint.h" - - - -btContactConstraint::btContactConstraint(btPersistentManifold* contactManifold,btRigidBody& rbA,btRigidBody& rbB) -:btTypedConstraint(CONTACT_CONSTRAINT_TYPE,rbA,rbB), - m_contactManifold(*contactManifold) -{ - -} - -btContactConstraint::~btContactConstraint() -{ - -} - -void btContactConstraint::setContactManifold(btPersistentManifold* contactManifold) -{ - m_contactManifold = *contactManifold; -} - -void btContactConstraint::getInfo1 (btConstraintInfo1* info) -{ - -} - -void btContactConstraint::getInfo2 (btConstraintInfo2* info) -{ - -} - -void btContactConstraint::buildJacobian() -{ - -} - - - - - -#include "btContactConstraint.h" -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include "LinearMath/btVector3.h" -#include "btJacobianEntry.h" -#include "btContactSolverInfo.h" -#include "LinearMath/btMinMax.h" -#include "BulletCollision/NarrowPhaseCollision/btManifoldPoint.h" - - - -//response between two dynamic objects without friction and no restitution, assuming 0 penetration depth -btScalar resolveSingleCollision( - btRigidBody* body1, - btCollisionObject* colObj2, - const btVector3& contactPositionWorld, - const btVector3& contactNormalOnB, - const btContactSolverInfo& solverInfo, - btScalar distance) -{ - btRigidBody* body2 = btRigidBody::upcast(colObj2); - - - const btVector3& normal = contactNormalOnB; - - btVector3 rel_pos1 = contactPositionWorld - body1->getWorldTransform().getOrigin(); - btVector3 rel_pos2 = contactPositionWorld - colObj2->getWorldTransform().getOrigin(); - - btVector3 vel1 = body1->getVelocityInLocalPoint(rel_pos1); - btVector3 vel2 = body2? body2->getVelocityInLocalPoint(rel_pos2) : btVector3(0,0,0); - btVector3 vel = vel1 - vel2; - btScalar rel_vel; - rel_vel = normal.dot(vel); - - btScalar combinedRestitution = 0.f; - btScalar restitution = combinedRestitution* -rel_vel; - - btScalar positionalError = solverInfo.m_erp *-distance /solverInfo.m_timeStep ; - btScalar velocityError = -(1.0f + restitution) * rel_vel;// * damping; - btScalar denom0 = body1->computeImpulseDenominator(contactPositionWorld,normal); - btScalar denom1 = body2? body2->computeImpulseDenominator(contactPositionWorld,normal) : 0.f; - btScalar relaxation = 1.f; - btScalar jacDiagABInv = relaxation/(denom0+denom1); - - btScalar penetrationImpulse = positionalError * jacDiagABInv; - btScalar velocityImpulse = velocityError * jacDiagABInv; - - btScalar normalImpulse = penetrationImpulse+velocityImpulse; - normalImpulse = 0.f > normalImpulse ? 0.f: normalImpulse; - - body1->applyImpulse(normal*(normalImpulse), rel_pos1); - if (body2) - body2->applyImpulse(-normal*(normalImpulse), rel_pos2); - - return normalImpulse; -} - - -//bilateral constraint between two dynamic objects -void resolveSingleBilateral(btRigidBody& body1, const btVector3& pos1, - btRigidBody& body2, const btVector3& pos2, - btScalar distance, const btVector3& normal,btScalar& impulse ,btScalar timeStep) -{ - (void)timeStep; - (void)distance; - - - btScalar normalLenSqr = normal.length2(); - btAssert(btFabs(normalLenSqr) < btScalar(1.1)); - if (normalLenSqr > btScalar(1.1)) - { - impulse = btScalar(0.); - return; - } - btVector3 rel_pos1 = pos1 - body1.getCenterOfMassPosition(); - btVector3 rel_pos2 = pos2 - body2.getCenterOfMassPosition(); - //this jacobian entry could be re-used for all iterations - - btVector3 vel1 = body1.getVelocityInLocalPoint(rel_pos1); - btVector3 vel2 = body2.getVelocityInLocalPoint(rel_pos2); - btVector3 vel = vel1 - vel2; - - - btJacobianEntry jac(body1.getCenterOfMassTransform().getBasis().transpose(), - body2.getCenterOfMassTransform().getBasis().transpose(), - rel_pos1,rel_pos2,normal,body1.getInvInertiaDiagLocal(),body1.getInvMass(), - body2.getInvInertiaDiagLocal(),body2.getInvMass()); - - btScalar jacDiagAB = jac.getDiagonal(); - btScalar jacDiagABInv = btScalar(1.) / jacDiagAB; - - btScalar rel_vel = jac.getRelativeVelocity( - body1.getLinearVelocity(), - body1.getCenterOfMassTransform().getBasis().transpose() * body1.getAngularVelocity(), - body2.getLinearVelocity(), - body2.getCenterOfMassTransform().getBasis().transpose() * body2.getAngularVelocity()); - - - - rel_vel = normal.dot(vel); - - //todo: move this into proper structure - btScalar contactDamping = btScalar(0.2); - -#ifdef ONLY_USE_LINEAR_MASS - btScalar massTerm = btScalar(1.) / (body1.getInvMass() + body2.getInvMass()); - impulse = - contactDamping * rel_vel * massTerm; -#else - btScalar velocityImpulse = -contactDamping * rel_vel * jacDiagABInv; - impulse = velocityImpulse; -#endif -} - - - - diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btContactConstraint.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btContactConstraint.h deleted file mode 100644 index adb2268353..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btContactConstraint.h +++ /dev/null @@ -1,73 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_CONTACT_CONSTRAINT_H -#define BT_CONTACT_CONSTRAINT_H - -#include "LinearMath/btVector3.h" -#include "btJacobianEntry.h" -#include "btTypedConstraint.h" -#include "BulletCollision/NarrowPhaseCollision/btPersistentManifold.h" - -///btContactConstraint can be automatically created to solve contact constraints using the unified btTypedConstraint interface -ATTRIBUTE_ALIGNED16(class) btContactConstraint : public btTypedConstraint -{ -protected: - - btPersistentManifold m_contactManifold; - -protected: - - - btContactConstraint(btPersistentManifold* contactManifold,btRigidBody& rbA,btRigidBody& rbB); - -public: - - void setContactManifold(btPersistentManifold* contactManifold); - - btPersistentManifold* getContactManifold() - { - return &m_contactManifold; - } - - const btPersistentManifold* getContactManifold() const - { - return &m_contactManifold; - } - - virtual ~btContactConstraint(); - - virtual void getInfo1 (btConstraintInfo1* info); - - virtual void getInfo2 (btConstraintInfo2* info); - - ///obsolete methods - virtual void buildJacobian(); - - -}; - -///very basic collision resolution without friction -btScalar resolveSingleCollision(btRigidBody* body1, class btCollisionObject* colObj2, const btVector3& contactPositionWorld,const btVector3& contactNormalOnB, const struct btContactSolverInfo& solverInfo,btScalar distance); - - -///resolveSingleBilateral is an obsolete methods used for vehicle friction between two dynamic objects -void resolveSingleBilateral(btRigidBody& body1, const btVector3& pos1, - btRigidBody& body2, const btVector3& pos2, - btScalar distance, const btVector3& normal,btScalar& impulse ,btScalar timeStep); - - - -#endif //BT_CONTACT_CONSTRAINT_H diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btContactSolverInfo.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btContactSolverInfo.h deleted file mode 100644 index 28d0c1dd48..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btContactSolverInfo.h +++ /dev/null @@ -1,167 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_CONTACT_SOLVER_INFO -#define BT_CONTACT_SOLVER_INFO - -#include "LinearMath/btScalar.h" - -enum btSolverMode -{ - SOLVER_RANDMIZE_ORDER = 1, - SOLVER_FRICTION_SEPARATE = 2, - SOLVER_USE_WARMSTARTING = 4, - SOLVER_USE_2_FRICTION_DIRECTIONS = 16, - SOLVER_ENABLE_FRICTION_DIRECTION_CACHING = 32, - SOLVER_DISABLE_VELOCITY_DEPENDENT_FRICTION_DIRECTION = 64, - SOLVER_CACHE_FRIENDLY = 128, - SOLVER_SIMD = 256, - SOLVER_INTERLEAVE_CONTACT_AND_FRICTION_CONSTRAINTS = 512, - SOLVER_ALLOW_ZERO_LENGTH_FRICTION_DIRECTIONS = 1024 -}; - -struct btContactSolverInfoData -{ - - - btScalar m_tau; - btScalar m_damping;//global non-contact constraint damping, can be locally overridden by constraints during 'getInfo2'. - btScalar m_friction; - btScalar m_timeStep; - btScalar m_restitution; - int m_numIterations; - btScalar m_maxErrorReduction; - btScalar m_sor;//successive over-relaxation term - btScalar m_erp;//error reduction for non-contact constraints - btScalar m_erp2;//error reduction for contact constraints - btScalar m_globalCfm;//constraint force mixing for contacts and non-contacts - btScalar m_frictionERP;//error reduction for friction constraints - btScalar m_frictionCFM;//constraint force mixing for friction constraints - - int m_splitImpulse; - btScalar m_splitImpulsePenetrationThreshold; - btScalar m_splitImpulseTurnErp; - btScalar m_linearSlop; - btScalar m_warmstartingFactor; - - int m_solverMode; - int m_restingContactRestitutionThreshold; - int m_minimumSolverBatchSize; - btScalar m_maxGyroscopicForce; - btScalar m_singleAxisRollingFrictionThreshold; - btScalar m_leastSquaresResidualThreshold; - btScalar m_restitutionVelocityThreshold; - -}; - -struct btContactSolverInfo : public btContactSolverInfoData -{ - - - - inline btContactSolverInfo() - { - m_tau = btScalar(0.6); - m_damping = btScalar(1.0); - m_friction = btScalar(0.3); - m_timeStep = btScalar(1.f/60.f); - m_restitution = btScalar(0.); - m_maxErrorReduction = btScalar(20.); - m_numIterations = 10; - m_erp = btScalar(0.2); - m_erp2 = btScalar(0.2); - m_globalCfm = btScalar(0.); - m_frictionERP = btScalar(0.2);//positional friction 'anchors' are disabled by default - m_frictionCFM = btScalar(0.); - m_sor = btScalar(1.); - m_splitImpulse = true; - m_splitImpulsePenetrationThreshold = -.04f; - m_splitImpulseTurnErp = 0.1f; - m_linearSlop = btScalar(0.0); - m_warmstartingFactor=btScalar(0.85); - //m_solverMode = SOLVER_USE_WARMSTARTING | SOLVER_SIMD | SOLVER_DISABLE_VELOCITY_DEPENDENT_FRICTION_DIRECTION|SOLVER_USE_2_FRICTION_DIRECTIONS|SOLVER_ENABLE_FRICTION_DIRECTION_CACHING;// | SOLVER_RANDMIZE_ORDER; - m_solverMode = SOLVER_USE_WARMSTARTING | SOLVER_SIMD;// | SOLVER_RANDMIZE_ORDER; - m_restingContactRestitutionThreshold = 2;//unused as of 2.81 - m_minimumSolverBatchSize = 128; //try to combine islands until the amount of constraints reaches this limit - m_maxGyroscopicForce = 100.f; ///it is only used for 'explicit' version of gyroscopic force - m_singleAxisRollingFrictionThreshold = 1e30f;///if the velocity is above this threshold, it will use a single constraint row (axis), otherwise 3 rows. - m_leastSquaresResidualThreshold = 0.f; - m_restitutionVelocityThreshold = 0.2f;//if the relative velocity is below this threshold, there is zero restitution - } -}; - -///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64 -struct btContactSolverInfoDoubleData -{ - double m_tau; - double m_damping;//global non-contact constraint damping, can be locally overridden by constraints during 'getInfo2'. - double m_friction; - double m_timeStep; - double m_restitution; - double m_maxErrorReduction; - double m_sor; - double m_erp;//used as Baumgarte factor - double m_erp2;//used in Split Impulse - double m_globalCfm;//constraint force mixing - double m_splitImpulsePenetrationThreshold; - double m_splitImpulseTurnErp; - double m_linearSlop; - double m_warmstartingFactor; - double m_maxGyroscopicForce;///it is only used for 'explicit' version of gyroscopic force - double m_singleAxisRollingFrictionThreshold; - - int m_numIterations; - int m_solverMode; - int m_restingContactRestitutionThreshold; - int m_minimumSolverBatchSize; - int m_splitImpulse; - char m_padding[4]; - -}; -///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64 -struct btContactSolverInfoFloatData -{ - float m_tau; - float m_damping;//global non-contact constraint damping, can be locally overridden by constraints during 'getInfo2'. - float m_friction; - float m_timeStep; - - float m_restitution; - float m_maxErrorReduction; - float m_sor; - float m_erp;//used as Baumgarte factor - - float m_erp2;//used in Split Impulse - float m_globalCfm;//constraint force mixing - float m_splitImpulsePenetrationThreshold; - float m_splitImpulseTurnErp; - - float m_linearSlop; - float m_warmstartingFactor; - float m_maxGyroscopicForce; - float m_singleAxisRollingFrictionThreshold; - - int m_numIterations; - int m_solverMode; - int m_restingContactRestitutionThreshold; - int m_minimumSolverBatchSize; - - int m_splitImpulse; - char m_padding[4]; -}; - - - -#endif //BT_CONTACT_SOLVER_INFO diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btFixedConstraint.cpp b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btFixedConstraint.cpp deleted file mode 100644 index 75d81cc08c..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btFixedConstraint.cpp +++ /dev/null @@ -1,37 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - - -#include "btFixedConstraint.h" -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include "LinearMath/btTransformUtil.h" -#include <new> - - -btFixedConstraint::btFixedConstraint(btRigidBody& rbA,btRigidBody& rbB, const btTransform& frameInA,const btTransform& frameInB) -:btGeneric6DofSpring2Constraint(rbA,rbB,frameInA,frameInB) -{ - setAngularLowerLimit(btVector3(0,0,0)); - setAngularUpperLimit(btVector3(0,0,0)); - setLinearLowerLimit(btVector3(0,0,0)); - setLinearUpperLimit(btVector3(0,0,0)); -} - - - - -btFixedConstraint::~btFixedConstraint () -{ -} diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btFixedConstraint.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btFixedConstraint.h deleted file mode 100644 index bff2008b28..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btFixedConstraint.h +++ /dev/null @@ -1,33 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_FIXED_CONSTRAINT_H -#define BT_FIXED_CONSTRAINT_H - -#include "btGeneric6DofSpring2Constraint.h" - - -ATTRIBUTE_ALIGNED16(class) btFixedConstraint : public btGeneric6DofSpring2Constraint -{ - -public: - btFixedConstraint(btRigidBody& rbA,btRigidBody& rbB, const btTransform& frameInA,const btTransform& frameInB); - - - virtual ~btFixedConstraint(); - -}; - -#endif //BT_FIXED_CONSTRAINT_H diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGearConstraint.cpp b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGearConstraint.cpp deleted file mode 100644 index bcd457b673..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGearConstraint.cpp +++ /dev/null @@ -1,54 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2012 Advanced Micro Devices, Inc. http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -/// Implemented by Erwin Coumans. The idea for the constraint comes from Dimitris Papavasiliou. - -#include "btGearConstraint.h" - -btGearConstraint::btGearConstraint(btRigidBody& rbA, btRigidBody& rbB, const btVector3& axisInA,const btVector3& axisInB, btScalar ratio) -:btTypedConstraint(GEAR_CONSTRAINT_TYPE,rbA,rbB), -m_axisInA(axisInA), -m_axisInB(axisInB), -m_ratio(ratio) -{ -} - -btGearConstraint::~btGearConstraint () -{ -} - -void btGearConstraint::getInfo1 (btConstraintInfo1* info) -{ - info->m_numConstraintRows = 1; - info->nub = 1; -} - -void btGearConstraint::getInfo2 (btConstraintInfo2* info) -{ - btVector3 globalAxisA, globalAxisB; - - globalAxisA = m_rbA.getWorldTransform().getBasis()*this->m_axisInA; - globalAxisB = m_rbB.getWorldTransform().getBasis()*this->m_axisInB; - - info->m_J1angularAxis[0] = globalAxisA[0]; - info->m_J1angularAxis[1] = globalAxisA[1]; - info->m_J1angularAxis[2] = globalAxisA[2]; - - info->m_J2angularAxis[0] = m_ratio*globalAxisB[0]; - info->m_J2angularAxis[1] = m_ratio*globalAxisB[1]; - info->m_J2angularAxis[2] = m_ratio*globalAxisB[2]; - -} - diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGearConstraint.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGearConstraint.h deleted file mode 100644 index e4613455a2..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGearConstraint.h +++ /dev/null @@ -1,160 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2012 Advanced Micro Devices, Inc. http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - - - -#ifndef BT_GEAR_CONSTRAINT_H -#define BT_GEAR_CONSTRAINT_H - -#include "BulletDynamics/ConstraintSolver/btTypedConstraint.h" - - -#ifdef BT_USE_DOUBLE_PRECISION -#define btGearConstraintData btGearConstraintDoubleData -#define btGearConstraintDataName "btGearConstraintDoubleData" -#else -#define btGearConstraintData btGearConstraintFloatData -#define btGearConstraintDataName "btGearConstraintFloatData" -#endif //BT_USE_DOUBLE_PRECISION - - - -///The btGeatConstraint will couple the angular velocity for two bodies around given local axis and ratio. -///See Bullet/Demos/ConstraintDemo for an example use. -class btGearConstraint : public btTypedConstraint -{ -protected: - btVector3 m_axisInA; - btVector3 m_axisInB; - bool m_useFrameA; - btScalar m_ratio; - -public: - btGearConstraint(btRigidBody& rbA, btRigidBody& rbB, const btVector3& axisInA,const btVector3& axisInB, btScalar ratio=1.f); - virtual ~btGearConstraint (); - - ///internal method used by the constraint solver, don't use them directly - virtual void getInfo1 (btConstraintInfo1* info); - - ///internal method used by the constraint solver, don't use them directly - virtual void getInfo2 (btConstraintInfo2* info); - - void setAxisA(btVector3& axisA) - { - m_axisInA = axisA; - } - void setAxisB(btVector3& axisB) - { - m_axisInB = axisB; - } - void setRatio(btScalar ratio) - { - m_ratio = ratio; - } - const btVector3& getAxisA() const - { - return m_axisInA; - } - const btVector3& getAxisB() const - { - return m_axisInB; - } - btScalar getRatio() const - { - return m_ratio; - } - - - virtual void setParam(int num, btScalar value, int axis = -1) - { - (void) num; - (void) value; - (void) axis; - btAssert(0); - } - - ///return the local value of parameter - virtual btScalar getParam(int num, int axis = -1) const - { - (void) num; - (void) axis; - btAssert(0); - return 0.f; - } - - virtual int calculateSerializeBufferSize() const; - - ///fills the dataBuffer and returns the struct name (and 0 on failure) - virtual const char* serialize(void* dataBuffer, btSerializer* serializer) const; -}; - - - - -///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64 -struct btGearConstraintFloatData -{ - btTypedConstraintFloatData m_typeConstraintData; - - btVector3FloatData m_axisInA; - btVector3FloatData m_axisInB; - - float m_ratio; - char m_padding[4]; -}; - -struct btGearConstraintDoubleData -{ - btTypedConstraintDoubleData m_typeConstraintData; - - btVector3DoubleData m_axisInA; - btVector3DoubleData m_axisInB; - - double m_ratio; -}; - -SIMD_FORCE_INLINE int btGearConstraint::calculateSerializeBufferSize() const -{ - return sizeof(btGearConstraintData); -} - - ///fills the dataBuffer and returns the struct name (and 0 on failure) -SIMD_FORCE_INLINE const char* btGearConstraint::serialize(void* dataBuffer, btSerializer* serializer) const -{ - btGearConstraintData* gear = (btGearConstraintData*)dataBuffer; - btTypedConstraint::serialize(&gear->m_typeConstraintData,serializer); - - m_axisInA.serialize( gear->m_axisInA ); - m_axisInB.serialize( gear->m_axisInB ); - - gear->m_ratio = m_ratio; - - // Fill padding with zeros to appease msan. -#ifndef BT_USE_DOUBLE_PRECISION - gear->m_padding[0] = 0; - gear->m_padding[1] = 0; - gear->m_padding[2] = 0; - gear->m_padding[3] = 0; -#endif - - return btGearConstraintDataName; -} - - - - - - -#endif //BT_GEAR_CONSTRAINT_H diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGeneric6DofConstraint.cpp b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGeneric6DofConstraint.cpp deleted file mode 100644 index fa17254ec3..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGeneric6DofConstraint.cpp +++ /dev/null @@ -1,1063 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ -/* -2007-09-09 -Refactored by Francisco Le?n -email: projectileman@yahoo.com -http://gimpact.sf.net -*/ - -#include "btGeneric6DofConstraint.h" -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include "LinearMath/btTransformUtil.h" -#include "LinearMath/btTransformUtil.h" -#include <new> - - - -#define D6_USE_OBSOLETE_METHOD false -#define D6_USE_FRAME_OFFSET true - - - - - - -btGeneric6DofConstraint::btGeneric6DofConstraint(btRigidBody& rbA, btRigidBody& rbB, const btTransform& frameInA, const btTransform& frameInB, bool useLinearReferenceFrameA) -: btTypedConstraint(D6_CONSTRAINT_TYPE, rbA, rbB) -, m_frameInA(frameInA) -, m_frameInB(frameInB), -m_useLinearReferenceFrameA(useLinearReferenceFrameA), -m_useOffsetForConstraintFrame(D6_USE_FRAME_OFFSET), -m_flags(0), -m_useSolveConstraintObsolete(D6_USE_OBSOLETE_METHOD) -{ - calculateTransforms(); -} - - - -btGeneric6DofConstraint::btGeneric6DofConstraint(btRigidBody& rbB, const btTransform& frameInB, bool useLinearReferenceFrameB) - : btTypedConstraint(D6_CONSTRAINT_TYPE, getFixedBody(), rbB), - m_frameInB(frameInB), - m_useLinearReferenceFrameA(useLinearReferenceFrameB), - m_useOffsetForConstraintFrame(D6_USE_FRAME_OFFSET), - m_flags(0), - m_useSolveConstraintObsolete(false) -{ - ///not providing rigidbody A means implicitly using worldspace for body A - m_frameInA = rbB.getCenterOfMassTransform() * m_frameInB; - calculateTransforms(); -} - - - - -#define GENERIC_D6_DISABLE_WARMSTARTING 1 - - - -btScalar btGetMatrixElem(const btMatrix3x3& mat, int index); -btScalar btGetMatrixElem(const btMatrix3x3& mat, int index) -{ - int i = index%3; - int j = index/3; - return mat[i][j]; -} - - - -///MatrixToEulerXYZ from http://www.geometrictools.com/LibFoundation/Mathematics/Wm4Matrix3.inl.html -bool matrixToEulerXYZ(const btMatrix3x3& mat,btVector3& xyz); -bool matrixToEulerXYZ(const btMatrix3x3& mat,btVector3& xyz) -{ - // // rot = cy*cz -cy*sz sy - // // cz*sx*sy+cx*sz cx*cz-sx*sy*sz -cy*sx - // // -cx*cz*sy+sx*sz cz*sx+cx*sy*sz cx*cy - // - - btScalar fi = btGetMatrixElem(mat,2); - if (fi < btScalar(1.0f)) - { - if (fi > btScalar(-1.0f)) - { - xyz[0] = btAtan2(-btGetMatrixElem(mat,5),btGetMatrixElem(mat,8)); - xyz[1] = btAsin(btGetMatrixElem(mat,2)); - xyz[2] = btAtan2(-btGetMatrixElem(mat,1),btGetMatrixElem(mat,0)); - return true; - } - else - { - // WARNING. Not unique. XA - ZA = -atan2(r10,r11) - xyz[0] = -btAtan2(btGetMatrixElem(mat,3),btGetMatrixElem(mat,4)); - xyz[1] = -SIMD_HALF_PI; - xyz[2] = btScalar(0.0); - return false; - } - } - else - { - // WARNING. Not unique. XAngle + ZAngle = atan2(r10,r11) - xyz[0] = btAtan2(btGetMatrixElem(mat,3),btGetMatrixElem(mat,4)); - xyz[1] = SIMD_HALF_PI; - xyz[2] = 0.0; - } - return false; -} - -//////////////////////////// btRotationalLimitMotor //////////////////////////////////// - -int btRotationalLimitMotor::testLimitValue(btScalar test_value) -{ - if(m_loLimit>m_hiLimit) - { - m_currentLimit = 0;//Free from violation - return 0; - } - if (test_value < m_loLimit) - { - m_currentLimit = 1;//low limit violation - m_currentLimitError = test_value - m_loLimit; - if(m_currentLimitError>SIMD_PI) - m_currentLimitError-=SIMD_2_PI; - else if(m_currentLimitError<-SIMD_PI) - m_currentLimitError+=SIMD_2_PI; - return 1; - } - else if (test_value> m_hiLimit) - { - m_currentLimit = 2;//High limit violation - m_currentLimitError = test_value - m_hiLimit; - if(m_currentLimitError>SIMD_PI) - m_currentLimitError-=SIMD_2_PI; - else if(m_currentLimitError<-SIMD_PI) - m_currentLimitError+=SIMD_2_PI; - return 2; - }; - - m_currentLimit = 0;//Free from violation - return 0; - -} - - - -btScalar btRotationalLimitMotor::solveAngularLimits( - btScalar timeStep,btVector3& axis,btScalar jacDiagABInv, - btRigidBody * body0, btRigidBody * body1 ) -{ - if (needApplyTorques()==false) return 0.0f; - - btScalar target_velocity = m_targetVelocity; - btScalar maxMotorForce = m_maxMotorForce; - - //current error correction - if (m_currentLimit!=0) - { - target_velocity = -m_stopERP*m_currentLimitError/(timeStep); - maxMotorForce = m_maxLimitForce; - } - - maxMotorForce *= timeStep; - - // current velocity difference - - btVector3 angVelA = body0->getAngularVelocity(); - btVector3 angVelB = body1->getAngularVelocity(); - - btVector3 vel_diff; - vel_diff = angVelA-angVelB; - - - - btScalar rel_vel = axis.dot(vel_diff); - - // correction velocity - btScalar motor_relvel = m_limitSoftness*(target_velocity - m_damping*rel_vel); - - - if ( motor_relvel < SIMD_EPSILON && motor_relvel > -SIMD_EPSILON ) - { - return 0.0f;//no need for applying force - } - - - // correction impulse - btScalar unclippedMotorImpulse = (1+m_bounce)*motor_relvel*jacDiagABInv; - - // clip correction impulse - btScalar clippedMotorImpulse; - - ///@todo: should clip against accumulated impulse - if (unclippedMotorImpulse>0.0f) - { - clippedMotorImpulse = unclippedMotorImpulse > maxMotorForce? maxMotorForce: unclippedMotorImpulse; - } - else - { - clippedMotorImpulse = unclippedMotorImpulse < -maxMotorForce ? -maxMotorForce: unclippedMotorImpulse; - } - - - // sort with accumulated impulses - btScalar lo = btScalar(-BT_LARGE_FLOAT); - btScalar hi = btScalar(BT_LARGE_FLOAT); - - btScalar oldaccumImpulse = m_accumulatedImpulse; - btScalar sum = oldaccumImpulse + clippedMotorImpulse; - m_accumulatedImpulse = sum > hi ? btScalar(0.) : sum < lo ? btScalar(0.) : sum; - - clippedMotorImpulse = m_accumulatedImpulse - oldaccumImpulse; - - btVector3 motorImp = clippedMotorImpulse * axis; - - body0->applyTorqueImpulse(motorImp); - body1->applyTorqueImpulse(-motorImp); - - return clippedMotorImpulse; - - -} - -//////////////////////////// End btRotationalLimitMotor //////////////////////////////////// - - - - -//////////////////////////// btTranslationalLimitMotor //////////////////////////////////// - - -int btTranslationalLimitMotor::testLimitValue(int limitIndex, btScalar test_value) -{ - btScalar loLimit = m_lowerLimit[limitIndex]; - btScalar hiLimit = m_upperLimit[limitIndex]; - if(loLimit > hiLimit) - { - m_currentLimit[limitIndex] = 0;//Free from violation - m_currentLimitError[limitIndex] = btScalar(0.f); - return 0; - } - - if (test_value < loLimit) - { - m_currentLimit[limitIndex] = 2;//low limit violation - m_currentLimitError[limitIndex] = test_value - loLimit; - return 2; - } - else if (test_value> hiLimit) - { - m_currentLimit[limitIndex] = 1;//High limit violation - m_currentLimitError[limitIndex] = test_value - hiLimit; - return 1; - }; - - m_currentLimit[limitIndex] = 0;//Free from violation - m_currentLimitError[limitIndex] = btScalar(0.f); - return 0; -} - - - -btScalar btTranslationalLimitMotor::solveLinearAxis( - btScalar timeStep, - btScalar jacDiagABInv, - btRigidBody& body1,const btVector3 &pointInA, - btRigidBody& body2,const btVector3 &pointInB, - int limit_index, - const btVector3 & axis_normal_on_a, - const btVector3 & anchorPos) -{ - - ///find relative velocity - // btVector3 rel_pos1 = pointInA - body1.getCenterOfMassPosition(); - // btVector3 rel_pos2 = pointInB - body2.getCenterOfMassPosition(); - btVector3 rel_pos1 = anchorPos - body1.getCenterOfMassPosition(); - btVector3 rel_pos2 = anchorPos - body2.getCenterOfMassPosition(); - - btVector3 vel1 = body1.getVelocityInLocalPoint(rel_pos1); - btVector3 vel2 = body2.getVelocityInLocalPoint(rel_pos2); - btVector3 vel = vel1 - vel2; - - btScalar rel_vel = axis_normal_on_a.dot(vel); - - - - /// apply displacement correction - - //positional error (zeroth order error) - btScalar depth = -(pointInA - pointInB).dot(axis_normal_on_a); - btScalar lo = btScalar(-BT_LARGE_FLOAT); - btScalar hi = btScalar(BT_LARGE_FLOAT); - - btScalar minLimit = m_lowerLimit[limit_index]; - btScalar maxLimit = m_upperLimit[limit_index]; - - //handle the limits - if (minLimit < maxLimit) - { - { - if (depth > maxLimit) - { - depth -= maxLimit; - lo = btScalar(0.); - - } - else - { - if (depth < minLimit) - { - depth -= minLimit; - hi = btScalar(0.); - } - else - { - return 0.0f; - } - } - } - } - - btScalar normalImpulse= m_limitSoftness*(m_restitution*depth/timeStep - m_damping*rel_vel) * jacDiagABInv; - - - - - btScalar oldNormalImpulse = m_accumulatedImpulse[limit_index]; - btScalar sum = oldNormalImpulse + normalImpulse; - m_accumulatedImpulse[limit_index] = sum > hi ? btScalar(0.) : sum < lo ? btScalar(0.) : sum; - normalImpulse = m_accumulatedImpulse[limit_index] - oldNormalImpulse; - - btVector3 impulse_vector = axis_normal_on_a * normalImpulse; - body1.applyImpulse( impulse_vector, rel_pos1); - body2.applyImpulse(-impulse_vector, rel_pos2); - - - - return normalImpulse; -} - -//////////////////////////// btTranslationalLimitMotor //////////////////////////////////// - -void btGeneric6DofConstraint::calculateAngleInfo() -{ - btMatrix3x3 relative_frame = m_calculatedTransformA.getBasis().inverse()*m_calculatedTransformB.getBasis(); - matrixToEulerXYZ(relative_frame,m_calculatedAxisAngleDiff); - // in euler angle mode we do not actually constrain the angular velocity - // along the axes axis[0] and axis[2] (although we do use axis[1]) : - // - // to get constrain w2-w1 along ...not - // ------ --------------------- ------ - // d(angle[0])/dt = 0 ax[1] x ax[2] ax[0] - // d(angle[1])/dt = 0 ax[1] - // d(angle[2])/dt = 0 ax[0] x ax[1] ax[2] - // - // constraining w2-w1 along an axis 'a' means that a'*(w2-w1)=0. - // to prove the result for angle[0], write the expression for angle[0] from - // GetInfo1 then take the derivative. to prove this for angle[2] it is - // easier to take the euler rate expression for d(angle[2])/dt with respect - // to the components of w and set that to 0. - btVector3 axis0 = m_calculatedTransformB.getBasis().getColumn(0); - btVector3 axis2 = m_calculatedTransformA.getBasis().getColumn(2); - - m_calculatedAxis[1] = axis2.cross(axis0); - m_calculatedAxis[0] = m_calculatedAxis[1].cross(axis2); - m_calculatedAxis[2] = axis0.cross(m_calculatedAxis[1]); - - m_calculatedAxis[0].normalize(); - m_calculatedAxis[1].normalize(); - m_calculatedAxis[2].normalize(); - -} - -void btGeneric6DofConstraint::calculateTransforms() -{ - calculateTransforms(m_rbA.getCenterOfMassTransform(),m_rbB.getCenterOfMassTransform()); -} - -void btGeneric6DofConstraint::calculateTransforms(const btTransform& transA,const btTransform& transB) -{ - m_calculatedTransformA = transA * m_frameInA; - m_calculatedTransformB = transB * m_frameInB; - calculateLinearInfo(); - calculateAngleInfo(); - if(m_useOffsetForConstraintFrame) - { // get weight factors depending on masses - btScalar miA = getRigidBodyA().getInvMass(); - btScalar miB = getRigidBodyB().getInvMass(); - m_hasStaticBody = (miA < SIMD_EPSILON) || (miB < SIMD_EPSILON); - btScalar miS = miA + miB; - if(miS > btScalar(0.f)) - { - m_factA = miB / miS; - } - else - { - m_factA = btScalar(0.5f); - } - m_factB = btScalar(1.0f) - m_factA; - } -} - - - -void btGeneric6DofConstraint::buildLinearJacobian( - btJacobianEntry & jacLinear,const btVector3 & normalWorld, - const btVector3 & pivotAInW,const btVector3 & pivotBInW) -{ - new (&jacLinear) btJacobianEntry( - m_rbA.getCenterOfMassTransform().getBasis().transpose(), - m_rbB.getCenterOfMassTransform().getBasis().transpose(), - pivotAInW - m_rbA.getCenterOfMassPosition(), - pivotBInW - m_rbB.getCenterOfMassPosition(), - normalWorld, - m_rbA.getInvInertiaDiagLocal(), - m_rbA.getInvMass(), - m_rbB.getInvInertiaDiagLocal(), - m_rbB.getInvMass()); -} - - - -void btGeneric6DofConstraint::buildAngularJacobian( - btJacobianEntry & jacAngular,const btVector3 & jointAxisW) -{ - new (&jacAngular) btJacobianEntry(jointAxisW, - m_rbA.getCenterOfMassTransform().getBasis().transpose(), - m_rbB.getCenterOfMassTransform().getBasis().transpose(), - m_rbA.getInvInertiaDiagLocal(), - m_rbB.getInvInertiaDiagLocal()); - -} - - - -bool btGeneric6DofConstraint::testAngularLimitMotor(int axis_index) -{ - btScalar angle = m_calculatedAxisAngleDiff[axis_index]; - angle = btAdjustAngleToLimits(angle, m_angularLimits[axis_index].m_loLimit, m_angularLimits[axis_index].m_hiLimit); - m_angularLimits[axis_index].m_currentPosition = angle; - //test limits - m_angularLimits[axis_index].testLimitValue(angle); - return m_angularLimits[axis_index].needApplyTorques(); -} - - - -void btGeneric6DofConstraint::buildJacobian() -{ -#ifndef __SPU__ - if (m_useSolveConstraintObsolete) - { - - // Clear accumulated impulses for the next simulation step - m_linearLimits.m_accumulatedImpulse.setValue(btScalar(0.), btScalar(0.), btScalar(0.)); - int i; - for(i = 0; i < 3; i++) - { - m_angularLimits[i].m_accumulatedImpulse = btScalar(0.); - } - //calculates transform - calculateTransforms(m_rbA.getCenterOfMassTransform(),m_rbB.getCenterOfMassTransform()); - - // const btVector3& pivotAInW = m_calculatedTransformA.getOrigin(); - // const btVector3& pivotBInW = m_calculatedTransformB.getOrigin(); - calcAnchorPos(); - btVector3 pivotAInW = m_AnchorPos; - btVector3 pivotBInW = m_AnchorPos; - - // not used here - // btVector3 rel_pos1 = pivotAInW - m_rbA.getCenterOfMassPosition(); - // btVector3 rel_pos2 = pivotBInW - m_rbB.getCenterOfMassPosition(); - - btVector3 normalWorld; - //linear part - for (i=0;i<3;i++) - { - if (m_linearLimits.isLimited(i)) - { - if (m_useLinearReferenceFrameA) - normalWorld = m_calculatedTransformA.getBasis().getColumn(i); - else - normalWorld = m_calculatedTransformB.getBasis().getColumn(i); - - buildLinearJacobian( - m_jacLinear[i],normalWorld , - pivotAInW,pivotBInW); - - } - } - - // angular part - for (i=0;i<3;i++) - { - //calculates error angle - if (testAngularLimitMotor(i)) - { - normalWorld = this->getAxis(i); - // Create angular atom - buildAngularJacobian(m_jacAng[i],normalWorld); - } - } - - } -#endif //__SPU__ - -} - - -void btGeneric6DofConstraint::getInfo1 (btConstraintInfo1* info) -{ - if (m_useSolveConstraintObsolete) - { - info->m_numConstraintRows = 0; - info->nub = 0; - } else - { - //prepare constraint - calculateTransforms(m_rbA.getCenterOfMassTransform(),m_rbB.getCenterOfMassTransform()); - info->m_numConstraintRows = 0; - info->nub = 6; - int i; - //test linear limits - for(i = 0; i < 3; i++) - { - if(m_linearLimits.needApplyForce(i)) - { - info->m_numConstraintRows++; - info->nub--; - } - } - //test angular limits - for (i=0;i<3 ;i++ ) - { - if(testAngularLimitMotor(i)) - { - info->m_numConstraintRows++; - info->nub--; - } - } - } -} - -void btGeneric6DofConstraint::getInfo1NonVirtual (btConstraintInfo1* info) -{ - if (m_useSolveConstraintObsolete) - { - info->m_numConstraintRows = 0; - info->nub = 0; - } else - { - //pre-allocate all 6 - info->m_numConstraintRows = 6; - info->nub = 0; - } -} - - -void btGeneric6DofConstraint::getInfo2 (btConstraintInfo2* info) -{ - btAssert(!m_useSolveConstraintObsolete); - - const btTransform& transA = m_rbA.getCenterOfMassTransform(); - const btTransform& transB = m_rbB.getCenterOfMassTransform(); - const btVector3& linVelA = m_rbA.getLinearVelocity(); - const btVector3& linVelB = m_rbB.getLinearVelocity(); - const btVector3& angVelA = m_rbA.getAngularVelocity(); - const btVector3& angVelB = m_rbB.getAngularVelocity(); - - if(m_useOffsetForConstraintFrame) - { // for stability better to solve angular limits first - int row = setAngularLimits(info, 0,transA,transB,linVelA,linVelB,angVelA,angVelB); - setLinearLimits(info, row, transA,transB,linVelA,linVelB,angVelA,angVelB); - } - else - { // leave old version for compatibility - int row = setLinearLimits(info, 0, transA,transB,linVelA,linVelB,angVelA,angVelB); - setAngularLimits(info, row,transA,transB,linVelA,linVelB,angVelA,angVelB); - } - -} - - -void btGeneric6DofConstraint::getInfo2NonVirtual (btConstraintInfo2* info, const btTransform& transA,const btTransform& transB,const btVector3& linVelA,const btVector3& linVelB,const btVector3& angVelA,const btVector3& angVelB) -{ - - btAssert(!m_useSolveConstraintObsolete); - //prepare constraint - calculateTransforms(transA,transB); - - int i; - for (i=0;i<3 ;i++ ) - { - testAngularLimitMotor(i); - } - - if(m_useOffsetForConstraintFrame) - { // for stability better to solve angular limits first - int row = setAngularLimits(info, 0,transA,transB,linVelA,linVelB,angVelA,angVelB); - setLinearLimits(info, row, transA,transB,linVelA,linVelB,angVelA,angVelB); - } - else - { // leave old version for compatibility - int row = setLinearLimits(info, 0, transA,transB,linVelA,linVelB,angVelA,angVelB); - setAngularLimits(info, row,transA,transB,linVelA,linVelB,angVelA,angVelB); - } -} - - - -int btGeneric6DofConstraint::setLinearLimits(btConstraintInfo2* info, int row, const btTransform& transA,const btTransform& transB,const btVector3& linVelA,const btVector3& linVelB,const btVector3& angVelA,const btVector3& angVelB) -{ -// int row = 0; - //solve linear limits - btRotationalLimitMotor limot; - for (int i=0;i<3 ;i++ ) - { - if(m_linearLimits.needApplyForce(i)) - { // re-use rotational motor code - limot.m_bounce = btScalar(0.f); - limot.m_currentLimit = m_linearLimits.m_currentLimit[i]; - limot.m_currentPosition = m_linearLimits.m_currentLinearDiff[i]; - limot.m_currentLimitError = m_linearLimits.m_currentLimitError[i]; - limot.m_damping = m_linearLimits.m_damping; - limot.m_enableMotor = m_linearLimits.m_enableMotor[i]; - limot.m_hiLimit = m_linearLimits.m_upperLimit[i]; - limot.m_limitSoftness = m_linearLimits.m_limitSoftness; - limot.m_loLimit = m_linearLimits.m_lowerLimit[i]; - limot.m_maxLimitForce = btScalar(0.f); - limot.m_maxMotorForce = m_linearLimits.m_maxMotorForce[i]; - limot.m_targetVelocity = m_linearLimits.m_targetVelocity[i]; - btVector3 axis = m_calculatedTransformA.getBasis().getColumn(i); - int flags = m_flags >> (i * BT_6DOF_FLAGS_AXIS_SHIFT); - limot.m_normalCFM = (flags & BT_6DOF_FLAGS_CFM_NORM) ? m_linearLimits.m_normalCFM[i] : info->cfm[0]; - limot.m_stopCFM = (flags & BT_6DOF_FLAGS_CFM_STOP) ? m_linearLimits.m_stopCFM[i] : info->cfm[0]; - limot.m_stopERP = (flags & BT_6DOF_FLAGS_ERP_STOP) ? m_linearLimits.m_stopERP[i] : info->erp; - if(m_useOffsetForConstraintFrame) - { - int indx1 = (i + 1) % 3; - int indx2 = (i + 2) % 3; - int rotAllowed = 1; // rotations around orthos to current axis - if(m_angularLimits[indx1].m_currentLimit && m_angularLimits[indx2].m_currentLimit) - { - rotAllowed = 0; - } - row += get_limit_motor_info2(&limot, transA,transB,linVelA,linVelB,angVelA,angVelB, info, row, axis, 0, rotAllowed); - } - else - { - row += get_limit_motor_info2(&limot, transA,transB,linVelA,linVelB,angVelA,angVelB, info, row, axis, 0); - } - } - } - return row; -} - - - -int btGeneric6DofConstraint::setAngularLimits(btConstraintInfo2 *info, int row_offset, const btTransform& transA,const btTransform& transB,const btVector3& linVelA,const btVector3& linVelB,const btVector3& angVelA,const btVector3& angVelB) -{ - btGeneric6DofConstraint * d6constraint = this; - int row = row_offset; - //solve angular limits - for (int i=0;i<3 ;i++ ) - { - if(d6constraint->getRotationalLimitMotor(i)->needApplyTorques()) - { - btVector3 axis = d6constraint->getAxis(i); - int flags = m_flags >> ((i + 3) * BT_6DOF_FLAGS_AXIS_SHIFT); - if(!(flags & BT_6DOF_FLAGS_CFM_NORM)) - { - m_angularLimits[i].m_normalCFM = info->cfm[0]; - } - if(!(flags & BT_6DOF_FLAGS_CFM_STOP)) - { - m_angularLimits[i].m_stopCFM = info->cfm[0]; - } - if(!(flags & BT_6DOF_FLAGS_ERP_STOP)) - { - m_angularLimits[i].m_stopERP = info->erp; - } - row += get_limit_motor_info2(d6constraint->getRotationalLimitMotor(i), - transA,transB,linVelA,linVelB,angVelA,angVelB, info,row,axis,1); - } - } - - return row; -} - - - - -void btGeneric6DofConstraint::updateRHS(btScalar timeStep) -{ - (void)timeStep; - -} - - -void btGeneric6DofConstraint::setFrames(const btTransform& frameA, const btTransform& frameB) -{ - m_frameInA = frameA; - m_frameInB = frameB; - buildJacobian(); - calculateTransforms(); -} - - - -btVector3 btGeneric6DofConstraint::getAxis(int axis_index) const -{ - return m_calculatedAxis[axis_index]; -} - - -btScalar btGeneric6DofConstraint::getRelativePivotPosition(int axisIndex) const -{ - return m_calculatedLinearDiff[axisIndex]; -} - - -btScalar btGeneric6DofConstraint::getAngle(int axisIndex) const -{ - return m_calculatedAxisAngleDiff[axisIndex]; -} - - - -void btGeneric6DofConstraint::calcAnchorPos(void) -{ - btScalar imA = m_rbA.getInvMass(); - btScalar imB = m_rbB.getInvMass(); - btScalar weight; - if(imB == btScalar(0.0)) - { - weight = btScalar(1.0); - } - else - { - weight = imA / (imA + imB); - } - const btVector3& pA = m_calculatedTransformA.getOrigin(); - const btVector3& pB = m_calculatedTransformB.getOrigin(); - m_AnchorPos = pA * weight + pB * (btScalar(1.0) - weight); - return; -} - - - -void btGeneric6DofConstraint::calculateLinearInfo() -{ - m_calculatedLinearDiff = m_calculatedTransformB.getOrigin() - m_calculatedTransformA.getOrigin(); - m_calculatedLinearDiff = m_calculatedTransformA.getBasis().inverse() * m_calculatedLinearDiff; - for(int i = 0; i < 3; i++) - { - m_linearLimits.m_currentLinearDiff[i] = m_calculatedLinearDiff[i]; - m_linearLimits.testLimitValue(i, m_calculatedLinearDiff[i]); - } -} - - - -int btGeneric6DofConstraint::get_limit_motor_info2( - btRotationalLimitMotor * limot, - const btTransform& transA,const btTransform& transB,const btVector3& linVelA,const btVector3& linVelB,const btVector3& angVelA,const btVector3& angVelB, - btConstraintInfo2 *info, int row, btVector3& ax1, int rotational,int rotAllowed) -{ - int srow = row * info->rowskip; - bool powered = limot->m_enableMotor; - int limit = limot->m_currentLimit; - if (powered || limit) - { // if the joint is powered, or has joint limits, add in the extra row - btScalar *J1 = rotational ? info->m_J1angularAxis : info->m_J1linearAxis; - btScalar *J2 = rotational ? info->m_J2angularAxis : info->m_J2linearAxis; - J1[srow+0] = ax1[0]; - J1[srow+1] = ax1[1]; - J1[srow+2] = ax1[2]; - - J2[srow+0] = -ax1[0]; - J2[srow+1] = -ax1[1]; - J2[srow+2] = -ax1[2]; - - if((!rotational)) - { - if (m_useOffsetForConstraintFrame) - { - btVector3 tmpA, tmpB, relA, relB; - // get vector from bodyB to frameB in WCS - relB = m_calculatedTransformB.getOrigin() - transB.getOrigin(); - // get its projection to constraint axis - btVector3 projB = ax1 * relB.dot(ax1); - // get vector directed from bodyB to constraint axis (and orthogonal to it) - btVector3 orthoB = relB - projB; - // same for bodyA - relA = m_calculatedTransformA.getOrigin() - transA.getOrigin(); - btVector3 projA = ax1 * relA.dot(ax1); - btVector3 orthoA = relA - projA; - // get desired offset between frames A and B along constraint axis - btScalar desiredOffs = limot->m_currentPosition - limot->m_currentLimitError; - // desired vector from projection of center of bodyA to projection of center of bodyB to constraint axis - btVector3 totalDist = projA + ax1 * desiredOffs - projB; - // get offset vectors relA and relB - relA = orthoA + totalDist * m_factA; - relB = orthoB - totalDist * m_factB; - tmpA = relA.cross(ax1); - tmpB = relB.cross(ax1); - if(m_hasStaticBody && (!rotAllowed)) - { - tmpA *= m_factA; - tmpB *= m_factB; - } - int i; - for (i=0; i<3; i++) info->m_J1angularAxis[srow+i] = tmpA[i]; - for (i=0; i<3; i++) info->m_J2angularAxis[srow+i] = -tmpB[i]; - } else - { - btVector3 ltd; // Linear Torque Decoupling vector - btVector3 c = m_calculatedTransformB.getOrigin() - transA.getOrigin(); - ltd = c.cross(ax1); - info->m_J1angularAxis[srow+0] = ltd[0]; - info->m_J1angularAxis[srow+1] = ltd[1]; - info->m_J1angularAxis[srow+2] = ltd[2]; - - c = m_calculatedTransformB.getOrigin() - transB.getOrigin(); - ltd = -c.cross(ax1); - info->m_J2angularAxis[srow+0] = ltd[0]; - info->m_J2angularAxis[srow+1] = ltd[1]; - info->m_J2angularAxis[srow+2] = ltd[2]; - } - } - // if we're limited low and high simultaneously, the joint motor is - // ineffective - if (limit && (limot->m_loLimit == limot->m_hiLimit)) powered = false; - info->m_constraintError[srow] = btScalar(0.f); - if (powered) - { - info->cfm[srow] = limot->m_normalCFM; - if(!limit) - { - btScalar tag_vel = rotational ? limot->m_targetVelocity : -limot->m_targetVelocity; - - btScalar mot_fact = getMotorFactor( limot->m_currentPosition, - limot->m_loLimit, - limot->m_hiLimit, - tag_vel, - info->fps * limot->m_stopERP); - info->m_constraintError[srow] += mot_fact * limot->m_targetVelocity; - info->m_lowerLimit[srow] = -limot->m_maxMotorForce; - info->m_upperLimit[srow] = limot->m_maxMotorForce; - } - } - if(limit) - { - btScalar k = info->fps * limot->m_stopERP; - if(!rotational) - { - info->m_constraintError[srow] += k * limot->m_currentLimitError; - } - else - { - info->m_constraintError[srow] += -k * limot->m_currentLimitError; - } - info->cfm[srow] = limot->m_stopCFM; - if (limot->m_loLimit == limot->m_hiLimit) - { // limited low and high simultaneously - info->m_lowerLimit[srow] = -SIMD_INFINITY; - info->m_upperLimit[srow] = SIMD_INFINITY; - } - else - { - if (limit == 1) - { - info->m_lowerLimit[srow] = 0; - info->m_upperLimit[srow] = SIMD_INFINITY; - } - else - { - info->m_lowerLimit[srow] = -SIMD_INFINITY; - info->m_upperLimit[srow] = 0; - } - // deal with bounce - if (limot->m_bounce > 0) - { - // calculate joint velocity - btScalar vel; - if (rotational) - { - vel = angVelA.dot(ax1); -//make sure that if no body -> angVelB == zero vec -// if (body1) - vel -= angVelB.dot(ax1); - } - else - { - vel = linVelA.dot(ax1); -//make sure that if no body -> angVelB == zero vec -// if (body1) - vel -= linVelB.dot(ax1); - } - // only apply bounce if the velocity is incoming, and if the - // resulting c[] exceeds what we already have. - if (limit == 1) - { - if (vel < 0) - { - btScalar newc = -limot->m_bounce* vel; - if (newc > info->m_constraintError[srow]) - info->m_constraintError[srow] = newc; - } - } - else - { - if (vel > 0) - { - btScalar newc = -limot->m_bounce * vel; - if (newc < info->m_constraintError[srow]) - info->m_constraintError[srow] = newc; - } - } - } - } - } - return 1; - } - else return 0; -} - - - - - - - ///override the default global value of a parameter (such as ERP or CFM), optionally provide the axis (0..5). - ///If no axis is provided, it uses the default axis for this constraint. -void btGeneric6DofConstraint::setParam(int num, btScalar value, int axis) -{ - if((axis >= 0) && (axis < 3)) - { - switch(num) - { - case BT_CONSTRAINT_STOP_ERP : - m_linearLimits.m_stopERP[axis] = value; - m_flags |= BT_6DOF_FLAGS_ERP_STOP << (axis * BT_6DOF_FLAGS_AXIS_SHIFT); - break; - case BT_CONSTRAINT_STOP_CFM : - m_linearLimits.m_stopCFM[axis] = value; - m_flags |= BT_6DOF_FLAGS_CFM_STOP << (axis * BT_6DOF_FLAGS_AXIS_SHIFT); - break; - case BT_CONSTRAINT_CFM : - m_linearLimits.m_normalCFM[axis] = value; - m_flags |= BT_6DOF_FLAGS_CFM_NORM << (axis * BT_6DOF_FLAGS_AXIS_SHIFT); - break; - default : - btAssertConstrParams(0); - } - } - else if((axis >=3) && (axis < 6)) - { - switch(num) - { - case BT_CONSTRAINT_STOP_ERP : - m_angularLimits[axis - 3].m_stopERP = value; - m_flags |= BT_6DOF_FLAGS_ERP_STOP << (axis * BT_6DOF_FLAGS_AXIS_SHIFT); - break; - case BT_CONSTRAINT_STOP_CFM : - m_angularLimits[axis - 3].m_stopCFM = value; - m_flags |= BT_6DOF_FLAGS_CFM_STOP << (axis * BT_6DOF_FLAGS_AXIS_SHIFT); - break; - case BT_CONSTRAINT_CFM : - m_angularLimits[axis - 3].m_normalCFM = value; - m_flags |= BT_6DOF_FLAGS_CFM_NORM << (axis * BT_6DOF_FLAGS_AXIS_SHIFT); - break; - default : - btAssertConstrParams(0); - } - } - else - { - btAssertConstrParams(0); - } -} - - ///return the local value of parameter -btScalar btGeneric6DofConstraint::getParam(int num, int axis) const -{ - btScalar retVal = 0; - if((axis >= 0) && (axis < 3)) - { - switch(num) - { - case BT_CONSTRAINT_STOP_ERP : - btAssertConstrParams(m_flags & (BT_6DOF_FLAGS_ERP_STOP << (axis * BT_6DOF_FLAGS_AXIS_SHIFT))); - retVal = m_linearLimits.m_stopERP[axis]; - break; - case BT_CONSTRAINT_STOP_CFM : - btAssertConstrParams(m_flags & (BT_6DOF_FLAGS_CFM_STOP << (axis * BT_6DOF_FLAGS_AXIS_SHIFT))); - retVal = m_linearLimits.m_stopCFM[axis]; - break; - case BT_CONSTRAINT_CFM : - btAssertConstrParams(m_flags & (BT_6DOF_FLAGS_CFM_NORM << (axis * BT_6DOF_FLAGS_AXIS_SHIFT))); - retVal = m_linearLimits.m_normalCFM[axis]; - break; - default : - btAssertConstrParams(0); - } - } - else if((axis >=3) && (axis < 6)) - { - switch(num) - { - case BT_CONSTRAINT_STOP_ERP : - btAssertConstrParams(m_flags & (BT_6DOF_FLAGS_ERP_STOP << (axis * BT_6DOF_FLAGS_AXIS_SHIFT))); - retVal = m_angularLimits[axis - 3].m_stopERP; - break; - case BT_CONSTRAINT_STOP_CFM : - btAssertConstrParams(m_flags & (BT_6DOF_FLAGS_CFM_STOP << (axis * BT_6DOF_FLAGS_AXIS_SHIFT))); - retVal = m_angularLimits[axis - 3].m_stopCFM; - break; - case BT_CONSTRAINT_CFM : - btAssertConstrParams(m_flags & (BT_6DOF_FLAGS_CFM_NORM << (axis * BT_6DOF_FLAGS_AXIS_SHIFT))); - retVal = m_angularLimits[axis - 3].m_normalCFM; - break; - default : - btAssertConstrParams(0); - } - } - else - { - btAssertConstrParams(0); - } - return retVal; -} - - - -void btGeneric6DofConstraint::setAxis(const btVector3& axis1,const btVector3& axis2) -{ - btVector3 zAxis = axis1.normalized(); - btVector3 yAxis = axis2.normalized(); - btVector3 xAxis = yAxis.cross(zAxis); // we want right coordinate system - - btTransform frameInW; - frameInW.setIdentity(); - frameInW.getBasis().setValue( xAxis[0], yAxis[0], zAxis[0], - xAxis[1], yAxis[1], zAxis[1], - xAxis[2], yAxis[2], zAxis[2]); - - // now get constraint frame in local coordinate systems - m_frameInA = m_rbA.getCenterOfMassTransform().inverse() * frameInW; - m_frameInB = m_rbB.getCenterOfMassTransform().inverse() * frameInW; - - calculateTransforms(); -} diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGeneric6DofConstraint.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGeneric6DofConstraint.h deleted file mode 100644 index bea8629c32..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGeneric6DofConstraint.h +++ /dev/null @@ -1,647 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -/// 2009 March: btGeneric6DofConstraint refactored by Roman Ponomarev -/// Added support for generic constraint solver through getInfo1/getInfo2 methods - -/* -2007-09-09 -btGeneric6DofConstraint Refactored by Francisco Le?n -email: projectileman@yahoo.com -http://gimpact.sf.net -*/ - - -#ifndef BT_GENERIC_6DOF_CONSTRAINT_H -#define BT_GENERIC_6DOF_CONSTRAINT_H - -#include "LinearMath/btVector3.h" -#include "btJacobianEntry.h" -#include "btTypedConstraint.h" - -class btRigidBody; - - - -#ifdef BT_USE_DOUBLE_PRECISION -#define btGeneric6DofConstraintData2 btGeneric6DofConstraintDoubleData2 -#define btGeneric6DofConstraintDataName "btGeneric6DofConstraintDoubleData2" -#else -#define btGeneric6DofConstraintData2 btGeneric6DofConstraintData -#define btGeneric6DofConstraintDataName "btGeneric6DofConstraintData" -#endif //BT_USE_DOUBLE_PRECISION - - -//! Rotation Limit structure for generic joints -class btRotationalLimitMotor -{ -public: - //! limit_parameters - //!@{ - btScalar m_loLimit;//!< joint limit - btScalar m_hiLimit;//!< joint limit - btScalar m_targetVelocity;//!< target motor velocity - btScalar m_maxMotorForce;//!< max force on motor - btScalar m_maxLimitForce;//!< max force on limit - btScalar m_damping;//!< Damping. - btScalar m_limitSoftness;//! Relaxation factor - btScalar m_normalCFM;//!< Constraint force mixing factor - btScalar m_stopERP;//!< Error tolerance factor when joint is at limit - btScalar m_stopCFM;//!< Constraint force mixing factor when joint is at limit - btScalar m_bounce;//!< restitution factor - bool m_enableMotor; - - //!@} - - //! temp_variables - //!@{ - btScalar m_currentLimitError;//! How much is violated this limit - btScalar m_currentPosition; //! current value of angle - int m_currentLimit;//!< 0=free, 1=at lo limit, 2=at hi limit - btScalar m_accumulatedImpulse; - //!@} - - btRotationalLimitMotor() - { - m_accumulatedImpulse = 0.f; - m_targetVelocity = 0; - m_maxMotorForce = 0.1f; - m_maxLimitForce = 300.0f; - m_loLimit = 1.0f; - m_hiLimit = -1.0f; - m_normalCFM = 0.f; - m_stopERP = 0.2f; - m_stopCFM = 0.f; - m_bounce = 0.0f; - m_damping = 1.0f; - m_limitSoftness = 0.5f; - m_currentLimit = 0; - m_currentLimitError = 0; - m_enableMotor = false; - } - - btRotationalLimitMotor(const btRotationalLimitMotor & limot) - { - m_targetVelocity = limot.m_targetVelocity; - m_maxMotorForce = limot.m_maxMotorForce; - m_limitSoftness = limot.m_limitSoftness; - m_loLimit = limot.m_loLimit; - m_hiLimit = limot.m_hiLimit; - m_normalCFM = limot.m_normalCFM; - m_stopERP = limot.m_stopERP; - m_stopCFM = limot.m_stopCFM; - m_bounce = limot.m_bounce; - m_currentLimit = limot.m_currentLimit; - m_currentLimitError = limot.m_currentLimitError; - m_enableMotor = limot.m_enableMotor; - } - - - - //! Is limited - bool isLimited() const - { - if(m_loLimit > m_hiLimit) return false; - return true; - } - - //! Need apply correction - bool needApplyTorques() const - { - if(m_currentLimit == 0 && m_enableMotor == false) return false; - return true; - } - - //! calculates error - /*! - calculates m_currentLimit and m_currentLimitError. - */ - int testLimitValue(btScalar test_value); - - //! apply the correction impulses for two bodies - btScalar solveAngularLimits(btScalar timeStep,btVector3& axis, btScalar jacDiagABInv,btRigidBody * body0, btRigidBody * body1); - -}; - - - -class btTranslationalLimitMotor -{ -public: - btVector3 m_lowerLimit;//!< the constraint lower limits - btVector3 m_upperLimit;//!< the constraint upper limits - btVector3 m_accumulatedImpulse; - //! Linear_Limit_parameters - //!@{ - btScalar m_limitSoftness;//!< Softness for linear limit - btScalar m_damping;//!< Damping for linear limit - btScalar m_restitution;//! Bounce parameter for linear limit - btVector3 m_normalCFM;//!< Constraint force mixing factor - btVector3 m_stopERP;//!< Error tolerance factor when joint is at limit - btVector3 m_stopCFM;//!< Constraint force mixing factor when joint is at limit - //!@} - bool m_enableMotor[3]; - btVector3 m_targetVelocity;//!< target motor velocity - btVector3 m_maxMotorForce;//!< max force on motor - btVector3 m_currentLimitError;//! How much is violated this limit - btVector3 m_currentLinearDiff;//! Current relative offset of constraint frames - int m_currentLimit[3];//!< 0=free, 1=at lower limit, 2=at upper limit - - btTranslationalLimitMotor() - { - m_lowerLimit.setValue(0.f,0.f,0.f); - m_upperLimit.setValue(0.f,0.f,0.f); - m_accumulatedImpulse.setValue(0.f,0.f,0.f); - m_normalCFM.setValue(0.f, 0.f, 0.f); - m_stopERP.setValue(0.2f, 0.2f, 0.2f); - m_stopCFM.setValue(0.f, 0.f, 0.f); - - m_limitSoftness = 0.7f; - m_damping = btScalar(1.0f); - m_restitution = btScalar(0.5f); - for(int i=0; i < 3; i++) - { - m_enableMotor[i] = false; - m_targetVelocity[i] = btScalar(0.f); - m_maxMotorForce[i] = btScalar(0.f); - } - } - - btTranslationalLimitMotor(const btTranslationalLimitMotor & other ) - { - m_lowerLimit = other.m_lowerLimit; - m_upperLimit = other.m_upperLimit; - m_accumulatedImpulse = other.m_accumulatedImpulse; - - m_limitSoftness = other.m_limitSoftness ; - m_damping = other.m_damping; - m_restitution = other.m_restitution; - m_normalCFM = other.m_normalCFM; - m_stopERP = other.m_stopERP; - m_stopCFM = other.m_stopCFM; - - for(int i=0; i < 3; i++) - { - m_enableMotor[i] = other.m_enableMotor[i]; - m_targetVelocity[i] = other.m_targetVelocity[i]; - m_maxMotorForce[i] = other.m_maxMotorForce[i]; - } - } - - //! Test limit - /*! - - free means upper < lower, - - locked means upper == lower - - limited means upper > lower - - limitIndex: first 3 are linear, next 3 are angular - */ - inline bool isLimited(int limitIndex) const - { - return (m_upperLimit[limitIndex] >= m_lowerLimit[limitIndex]); - } - inline bool needApplyForce(int limitIndex) const - { - if(m_currentLimit[limitIndex] == 0 && m_enableMotor[limitIndex] == false) return false; - return true; - } - int testLimitValue(int limitIndex, btScalar test_value); - - - btScalar solveLinearAxis( - btScalar timeStep, - btScalar jacDiagABInv, - btRigidBody& body1,const btVector3 &pointInA, - btRigidBody& body2,const btVector3 &pointInB, - int limit_index, - const btVector3 & axis_normal_on_a, - const btVector3 & anchorPos); - - -}; - -enum bt6DofFlags -{ - BT_6DOF_FLAGS_CFM_NORM = 1, - BT_6DOF_FLAGS_CFM_STOP = 2, - BT_6DOF_FLAGS_ERP_STOP = 4 -}; -#define BT_6DOF_FLAGS_AXIS_SHIFT 3 // bits per axis - - -/// btGeneric6DofConstraint between two rigidbodies each with a pivotpoint that descibes the axis location in local space -/*! -btGeneric6DofConstraint can leave any of the 6 degree of freedom 'free' or 'locked'. -currently this limit supports rotational motors<br> -<ul> -<li> For Linear limits, use btGeneric6DofConstraint.setLinearUpperLimit, btGeneric6DofConstraint.setLinearLowerLimit. You can set the parameters with the btTranslationalLimitMotor structure accsesible through the btGeneric6DofConstraint.getTranslationalLimitMotor method. -At this moment translational motors are not supported. May be in the future. </li> - -<li> For Angular limits, use the btRotationalLimitMotor structure for configuring the limit. -This is accessible through btGeneric6DofConstraint.getLimitMotor method, -This brings support for limit parameters and motors. </li> - -<li> Angulars limits have these possible ranges: -<table border=1 > -<tr> - <td><b>AXIS</b></td> - <td><b>MIN ANGLE</b></td> - <td><b>MAX ANGLE</b></td> -</tr><tr> - <td>X</td> - <td>-PI</td> - <td>PI</td> -</tr><tr> - <td>Y</td> - <td>-PI/2</td> - <td>PI/2</td> -</tr><tr> - <td>Z</td> - <td>-PI</td> - <td>PI</td> -</tr> -</table> -</li> -</ul> - -*/ -ATTRIBUTE_ALIGNED16(class) btGeneric6DofConstraint : public btTypedConstraint -{ -protected: - - //! relative_frames - //!@{ - btTransform m_frameInA;//!< the constraint space w.r.t body A - btTransform m_frameInB;//!< the constraint space w.r.t body B - //!@} - - //! Jacobians - //!@{ - btJacobianEntry m_jacLinear[3];//!< 3 orthogonal linear constraints - btJacobianEntry m_jacAng[3];//!< 3 orthogonal angular constraints - //!@} - - //! Linear_Limit_parameters - //!@{ - btTranslationalLimitMotor m_linearLimits; - //!@} - - - //! hinge_parameters - //!@{ - btRotationalLimitMotor m_angularLimits[3]; - //!@} - - -protected: - //! temporal variables - //!@{ - btScalar m_timeStep; - btTransform m_calculatedTransformA; - btTransform m_calculatedTransformB; - btVector3 m_calculatedAxisAngleDiff; - btVector3 m_calculatedAxis[3]; - btVector3 m_calculatedLinearDiff; - btScalar m_factA; - btScalar m_factB; - bool m_hasStaticBody; - - btVector3 m_AnchorPos; // point betwen pivots of bodies A and B to solve linear axes - - bool m_useLinearReferenceFrameA; - bool m_useOffsetForConstraintFrame; - - int m_flags; - - //!@} - - btGeneric6DofConstraint& operator=(btGeneric6DofConstraint& other) - { - btAssert(0); - (void) other; - return *this; - } - - - int setAngularLimits(btConstraintInfo2 *info, int row_offset,const btTransform& transA,const btTransform& transB,const btVector3& linVelA,const btVector3& linVelB,const btVector3& angVelA,const btVector3& angVelB); - - int setLinearLimits(btConstraintInfo2 *info, int row, const btTransform& transA,const btTransform& transB,const btVector3& linVelA,const btVector3& linVelB,const btVector3& angVelA,const btVector3& angVelB); - - void buildLinearJacobian( - btJacobianEntry & jacLinear,const btVector3 & normalWorld, - const btVector3 & pivotAInW,const btVector3 & pivotBInW); - - void buildAngularJacobian(btJacobianEntry & jacAngular,const btVector3 & jointAxisW); - - // tests linear limits - void calculateLinearInfo(); - - //! calcs the euler angles between the two bodies. - void calculateAngleInfo(); - - - -public: - - BT_DECLARE_ALIGNED_ALLOCATOR(); - - ///for backwards compatibility during the transition to 'getInfo/getInfo2' - bool m_useSolveConstraintObsolete; - - btGeneric6DofConstraint(btRigidBody& rbA, btRigidBody& rbB, const btTransform& frameInA, const btTransform& frameInB ,bool useLinearReferenceFrameA); - btGeneric6DofConstraint(btRigidBody& rbB, const btTransform& frameInB, bool useLinearReferenceFrameB); - - //! Calcs global transform of the offsets - /*! - Calcs the global transform for the joint offset for body A an B, and also calcs the agle differences between the bodies. - \sa btGeneric6DofConstraint.getCalculatedTransformA , btGeneric6DofConstraint.getCalculatedTransformB, btGeneric6DofConstraint.calculateAngleInfo - */ - void calculateTransforms(const btTransform& transA,const btTransform& transB); - - void calculateTransforms(); - - //! Gets the global transform of the offset for body A - /*! - \sa btGeneric6DofConstraint.getFrameOffsetA, btGeneric6DofConstraint.getFrameOffsetB, btGeneric6DofConstraint.calculateAngleInfo. - */ - const btTransform & getCalculatedTransformA() const - { - return m_calculatedTransformA; - } - - //! Gets the global transform of the offset for body B - /*! - \sa btGeneric6DofConstraint.getFrameOffsetA, btGeneric6DofConstraint.getFrameOffsetB, btGeneric6DofConstraint.calculateAngleInfo. - */ - const btTransform & getCalculatedTransformB() const - { - return m_calculatedTransformB; - } - - const btTransform & getFrameOffsetA() const - { - return m_frameInA; - } - - const btTransform & getFrameOffsetB() const - { - return m_frameInB; - } - - - btTransform & getFrameOffsetA() - { - return m_frameInA; - } - - btTransform & getFrameOffsetB() - { - return m_frameInB; - } - - - //! performs Jacobian calculation, and also calculates angle differences and axis - virtual void buildJacobian(); - - virtual void getInfo1 (btConstraintInfo1* info); - - void getInfo1NonVirtual (btConstraintInfo1* info); - - virtual void getInfo2 (btConstraintInfo2* info); - - void getInfo2NonVirtual (btConstraintInfo2* info,const btTransform& transA,const btTransform& transB,const btVector3& linVelA,const btVector3& linVelB,const btVector3& angVelA,const btVector3& angVelB); - - - void updateRHS(btScalar timeStep); - - //! Get the rotation axis in global coordinates - /*! - \pre btGeneric6DofConstraint.buildJacobian must be called previously. - */ - btVector3 getAxis(int axis_index) const; - - //! Get the relative Euler angle - /*! - \pre btGeneric6DofConstraint::calculateTransforms() must be called previously. - */ - btScalar getAngle(int axis_index) const; - - //! Get the relative position of the constraint pivot - /*! - \pre btGeneric6DofConstraint::calculateTransforms() must be called previously. - */ - btScalar getRelativePivotPosition(int axis_index) const; - - void setFrames(const btTransform & frameA, const btTransform & frameB); - - //! Test angular limit. - /*! - Calculates angular correction and returns true if limit needs to be corrected. - \pre btGeneric6DofConstraint::calculateTransforms() must be called previously. - */ - bool testAngularLimitMotor(int axis_index); - - void setLinearLowerLimit(const btVector3& linearLower) - { - m_linearLimits.m_lowerLimit = linearLower; - } - - void getLinearLowerLimit(btVector3& linearLower) const - { - linearLower = m_linearLimits.m_lowerLimit; - } - - void setLinearUpperLimit(const btVector3& linearUpper) - { - m_linearLimits.m_upperLimit = linearUpper; - } - - void getLinearUpperLimit(btVector3& linearUpper) const - { - linearUpper = m_linearLimits.m_upperLimit; - } - - void setAngularLowerLimit(const btVector3& angularLower) - { - for(int i = 0; i < 3; i++) - m_angularLimits[i].m_loLimit = btNormalizeAngle(angularLower[i]); - } - - void getAngularLowerLimit(btVector3& angularLower) const - { - for(int i = 0; i < 3; i++) - angularLower[i] = m_angularLimits[i].m_loLimit; - } - - void setAngularUpperLimit(const btVector3& angularUpper) - { - for(int i = 0; i < 3; i++) - m_angularLimits[i].m_hiLimit = btNormalizeAngle(angularUpper[i]); - } - - void getAngularUpperLimit(btVector3& angularUpper) const - { - for(int i = 0; i < 3; i++) - angularUpper[i] = m_angularLimits[i].m_hiLimit; - } - - //! Retrieves the angular limit informacion - btRotationalLimitMotor * getRotationalLimitMotor(int index) - { - return &m_angularLimits[index]; - } - - //! Retrieves the limit informacion - btTranslationalLimitMotor * getTranslationalLimitMotor() - { - return &m_linearLimits; - } - - //first 3 are linear, next 3 are angular - void setLimit(int axis, btScalar lo, btScalar hi) - { - if(axis<3) - { - m_linearLimits.m_lowerLimit[axis] = lo; - m_linearLimits.m_upperLimit[axis] = hi; - } - else - { - lo = btNormalizeAngle(lo); - hi = btNormalizeAngle(hi); - m_angularLimits[axis-3].m_loLimit = lo; - m_angularLimits[axis-3].m_hiLimit = hi; - } - } - - //! Test limit - /*! - - free means upper < lower, - - locked means upper == lower - - limited means upper > lower - - limitIndex: first 3 are linear, next 3 are angular - */ - bool isLimited(int limitIndex) const - { - if(limitIndex<3) - { - return m_linearLimits.isLimited(limitIndex); - - } - return m_angularLimits[limitIndex-3].isLimited(); - } - - virtual void calcAnchorPos(void); // overridable - - int get_limit_motor_info2( btRotationalLimitMotor * limot, - const btTransform& transA,const btTransform& transB,const btVector3& linVelA,const btVector3& linVelB,const btVector3& angVelA,const btVector3& angVelB, - btConstraintInfo2 *info, int row, btVector3& ax1, int rotational, int rotAllowed = false); - - // access for UseFrameOffset - bool getUseFrameOffset() const { return m_useOffsetForConstraintFrame; } - void setUseFrameOffset(bool frameOffsetOnOff) { m_useOffsetForConstraintFrame = frameOffsetOnOff; } - - bool getUseLinearReferenceFrameA() const { return m_useLinearReferenceFrameA; } - void setUseLinearReferenceFrameA(bool linearReferenceFrameA) { m_useLinearReferenceFrameA = linearReferenceFrameA; } - - ///override the default global value of a parameter (such as ERP or CFM), optionally provide the axis (0..5). - ///If no axis is provided, it uses the default axis for this constraint. - virtual void setParam(int num, btScalar value, int axis = -1); - ///return the local value of parameter - virtual btScalar getParam(int num, int axis = -1) const; - - void setAxis( const btVector3& axis1, const btVector3& axis2); - - virtual int getFlags() const - { - return m_flags; - } - - virtual int calculateSerializeBufferSize() const; - - ///fills the dataBuffer and returns the struct name (and 0 on failure) - virtual const char* serialize(void* dataBuffer, btSerializer* serializer) const; - - -}; - - -struct btGeneric6DofConstraintData -{ - btTypedConstraintData m_typeConstraintData; - btTransformFloatData m_rbAFrame; // constraint axii. Assumes z is hinge axis. - btTransformFloatData m_rbBFrame; - - btVector3FloatData m_linearUpperLimit; - btVector3FloatData m_linearLowerLimit; - - btVector3FloatData m_angularUpperLimit; - btVector3FloatData m_angularLowerLimit; - - int m_useLinearReferenceFrameA; - int m_useOffsetForConstraintFrame; -}; - -struct btGeneric6DofConstraintDoubleData2 -{ - btTypedConstraintDoubleData m_typeConstraintData; - btTransformDoubleData m_rbAFrame; // constraint axii. Assumes z is hinge axis. - btTransformDoubleData m_rbBFrame; - - btVector3DoubleData m_linearUpperLimit; - btVector3DoubleData m_linearLowerLimit; - - btVector3DoubleData m_angularUpperLimit; - btVector3DoubleData m_angularLowerLimit; - - int m_useLinearReferenceFrameA; - int m_useOffsetForConstraintFrame; -}; - -SIMD_FORCE_INLINE int btGeneric6DofConstraint::calculateSerializeBufferSize() const -{ - return sizeof(btGeneric6DofConstraintData2); -} - - ///fills the dataBuffer and returns the struct name (and 0 on failure) -SIMD_FORCE_INLINE const char* btGeneric6DofConstraint::serialize(void* dataBuffer, btSerializer* serializer) const -{ - - btGeneric6DofConstraintData2* dof = (btGeneric6DofConstraintData2*)dataBuffer; - btTypedConstraint::serialize(&dof->m_typeConstraintData,serializer); - - m_frameInA.serialize(dof->m_rbAFrame); - m_frameInB.serialize(dof->m_rbBFrame); - - - int i; - for (i=0;i<3;i++) - { - dof->m_angularLowerLimit.m_floats[i] = m_angularLimits[i].m_loLimit; - dof->m_angularUpperLimit.m_floats[i] = m_angularLimits[i].m_hiLimit; - dof->m_linearLowerLimit.m_floats[i] = m_linearLimits.m_lowerLimit[i]; - dof->m_linearUpperLimit.m_floats[i] = m_linearLimits.m_upperLimit[i]; - } - - dof->m_useLinearReferenceFrameA = m_useLinearReferenceFrameA? 1 : 0; - dof->m_useOffsetForConstraintFrame = m_useOffsetForConstraintFrame ? 1 : 0; - - return btGeneric6DofConstraintDataName; -} - - - - - -#endif //BT_GENERIC_6DOF_CONSTRAINT_H diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGeneric6DofSpring2Constraint.cpp b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGeneric6DofSpring2Constraint.cpp deleted file mode 100644 index f0976ee493..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGeneric6DofSpring2Constraint.cpp +++ /dev/null @@ -1,1172 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -/* -2014 May: btGeneric6DofSpring2Constraint is created from the original (2.82.2712) btGeneric6DofConstraint by Gabor Puhr and Tamas Umenhoffer -Pros: -- Much more accurate and stable in a lot of situation. (Especially when a sleeping chain of RBs connected with 6dof2 is pulled) -- Stable and accurate spring with minimal energy loss that works with all of the solvers. (latter is not true for the original 6dof spring) -- Servo motor functionality -- Much more accurate bouncing. 0 really means zero bouncing (not true for the original 6odf) and there is only a minimal energy loss when the value is 1 (because of the solvers' precision) -- Rotation order for the Euler system can be set. (One axis' freedom is still limited to pi/2) - -Cons: -- It is slower than the original 6dof. There is no exact ratio, but half speed is a good estimation. (with PGS) -- At bouncing the correct velocity is calculated, but not the correct position. (it is because of the solver can correct position or velocity, but not both.) -*/ - -/// 2009 March: btGeneric6DofConstraint refactored by Roman Ponomarev -/// Added support for generic constraint solver through getInfo1/getInfo2 methods - -/* -2007-09-09 -btGeneric6DofConstraint Refactored by Francisco Le?n -email: projectileman@yahoo.com -http://gimpact.sf.net -*/ - - - -#include "btGeneric6DofSpring2Constraint.h" -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include "LinearMath/btTransformUtil.h" -#include <new> - - - -btGeneric6DofSpring2Constraint::btGeneric6DofSpring2Constraint(btRigidBody& rbA, btRigidBody& rbB, const btTransform& frameInA, const btTransform& frameInB, RotateOrder rotOrder) - : btTypedConstraint(D6_SPRING_2_CONSTRAINT_TYPE, rbA, rbB) - , m_frameInA(frameInA) - , m_frameInB(frameInB) - , m_rotateOrder(rotOrder) - , m_flags(0) -{ - calculateTransforms(); -} - - -btGeneric6DofSpring2Constraint::btGeneric6DofSpring2Constraint(btRigidBody& rbB, const btTransform& frameInB, RotateOrder rotOrder) - : btTypedConstraint(D6_SPRING_2_CONSTRAINT_TYPE, getFixedBody(), rbB) - , m_frameInB(frameInB) - , m_rotateOrder(rotOrder) - , m_flags(0) -{ - ///not providing rigidbody A means implicitly using worldspace for body A - m_frameInA = rbB.getCenterOfMassTransform() * m_frameInB; - calculateTransforms(); -} - - -btScalar btGeneric6DofSpring2Constraint::btGetMatrixElem(const btMatrix3x3& mat, int index) -{ - int i = index%3; - int j = index/3; - return mat[i][j]; -} - -// MatrixToEulerXYZ from http://www.geometrictools.com/LibFoundation/Mathematics/Wm4Matrix3.inl.html - -bool btGeneric6DofSpring2Constraint::matrixToEulerXYZ(const btMatrix3x3& mat,btVector3& xyz) -{ - // rot = cy*cz -cy*sz sy - // cz*sx*sy+cx*sz cx*cz-sx*sy*sz -cy*sx - // -cx*cz*sy+sx*sz cz*sx+cx*sy*sz cx*cy - - btScalar fi = btGetMatrixElem(mat,2); - if (fi < btScalar(1.0f)) - { - if (fi > btScalar(-1.0f)) - { - xyz[0] = btAtan2(-btGetMatrixElem(mat,5),btGetMatrixElem(mat,8)); - xyz[1] = btAsin(btGetMatrixElem(mat,2)); - xyz[2] = btAtan2(-btGetMatrixElem(mat,1),btGetMatrixElem(mat,0)); - return true; - } - else - { - // WARNING. Not unique. XA - ZA = -atan2(r10,r11) - xyz[0] = -btAtan2(btGetMatrixElem(mat,3),btGetMatrixElem(mat,4)); - xyz[1] = -SIMD_HALF_PI; - xyz[2] = btScalar(0.0); - return false; - } - } - else - { - // WARNING. Not unique. XAngle + ZAngle = atan2(r10,r11) - xyz[0] = btAtan2(btGetMatrixElem(mat,3),btGetMatrixElem(mat,4)); - xyz[1] = SIMD_HALF_PI; - xyz[2] = 0.0; - } - return false; -} - -bool btGeneric6DofSpring2Constraint::matrixToEulerXZY(const btMatrix3x3& mat,btVector3& xyz) -{ - // rot = cy*cz -sz sy*cz - // cy*cx*sz+sx*sy cx*cz sy*cx*sz-cy*sx - // cy*sx*sz-cx*sy sx*cz sy*sx*sz+cx*cy - - btScalar fi = btGetMatrixElem(mat,1); - if (fi < btScalar(1.0f)) - { - if (fi > btScalar(-1.0f)) - { - xyz[0] = btAtan2(btGetMatrixElem(mat,7),btGetMatrixElem(mat,4)); - xyz[1] = btAtan2(btGetMatrixElem(mat,2),btGetMatrixElem(mat,0)); - xyz[2] = btAsin(-btGetMatrixElem(mat,1)); - return true; - } - else - { - xyz[0] = -btAtan2(-btGetMatrixElem(mat,6),btGetMatrixElem(mat,8)); - xyz[1] = btScalar(0.0); - xyz[2] = SIMD_HALF_PI; - return false; - } - } - else - { - xyz[0] = btAtan2(-btGetMatrixElem(mat,6),btGetMatrixElem(mat,8)); - xyz[1] = 0.0; - xyz[2] = -SIMD_HALF_PI; - } - return false; -} - -bool btGeneric6DofSpring2Constraint::matrixToEulerYXZ(const btMatrix3x3& mat,btVector3& xyz) -{ - // rot = cy*cz+sy*sx*sz cz*sy*sx-cy*sz cx*sy - // cx*sz cx*cz -sx - // cy*sx*sz-cz*sy sy*sz+cy*cz*sx cy*cx - - btScalar fi = btGetMatrixElem(mat,5); - if (fi < btScalar(1.0f)) - { - if (fi > btScalar(-1.0f)) - { - xyz[0] = btAsin(-btGetMatrixElem(mat,5)); - xyz[1] = btAtan2(btGetMatrixElem(mat,2),btGetMatrixElem(mat,8)); - xyz[2] = btAtan2(btGetMatrixElem(mat,3),btGetMatrixElem(mat,4)); - return true; - } - else - { - xyz[0] = SIMD_HALF_PI; - xyz[1] = -btAtan2(-btGetMatrixElem(mat,1),btGetMatrixElem(mat,0)); - xyz[2] = btScalar(0.0); - return false; - } - } - else - { - xyz[0] = -SIMD_HALF_PI; - xyz[1] = btAtan2(-btGetMatrixElem(mat,1),btGetMatrixElem(mat,0)); - xyz[2] = 0.0; - } - return false; -} - -bool btGeneric6DofSpring2Constraint::matrixToEulerYZX(const btMatrix3x3& mat,btVector3& xyz) -{ - // rot = cy*cz sy*sx-cy*cx*sz cx*sy+cy*sz*sx - // sz cz*cx -cz*sx - // -cz*sy cy*sx+cx*sy*sz cy*cx-sy*sz*sx - - btScalar fi = btGetMatrixElem(mat,3); - if (fi < btScalar(1.0f)) - { - if (fi > btScalar(-1.0f)) - { - xyz[0] = btAtan2(-btGetMatrixElem(mat,5),btGetMatrixElem(mat,4)); - xyz[1] = btAtan2(-btGetMatrixElem(mat,6),btGetMatrixElem(mat,0)); - xyz[2] = btAsin(btGetMatrixElem(mat,3)); - return true; - } - else - { - xyz[0] = btScalar(0.0); - xyz[1] = -btAtan2(btGetMatrixElem(mat,7),btGetMatrixElem(mat,8)); - xyz[2] = -SIMD_HALF_PI; - return false; - } - } - else - { - xyz[0] = btScalar(0.0); - xyz[1] = btAtan2(btGetMatrixElem(mat,7),btGetMatrixElem(mat,8)); - xyz[2] = SIMD_HALF_PI; - } - return false; -} - -bool btGeneric6DofSpring2Constraint::matrixToEulerZXY(const btMatrix3x3& mat,btVector3& xyz) -{ - // rot = cz*cy-sz*sx*sy -cx*sz cz*sy+cy*sz*sx - // cy*sz+cz*sx*sy cz*cx sz*sy-cz*xy*sx - // -cx*sy sx cx*cy - - btScalar fi = btGetMatrixElem(mat,7); - if (fi < btScalar(1.0f)) - { - if (fi > btScalar(-1.0f)) - { - xyz[0] = btAsin(btGetMatrixElem(mat,7)); - xyz[1] = btAtan2(-btGetMatrixElem(mat,6),btGetMatrixElem(mat,8)); - xyz[2] = btAtan2(-btGetMatrixElem(mat,1),btGetMatrixElem(mat,4)); - return true; - } - else - { - xyz[0] = -SIMD_HALF_PI; - xyz[1] = btScalar(0.0); - xyz[2] = -btAtan2(btGetMatrixElem(mat,2),btGetMatrixElem(mat,0)); - return false; - } - } - else - { - xyz[0] = SIMD_HALF_PI; - xyz[1] = btScalar(0.0); - xyz[2] = btAtan2(btGetMatrixElem(mat,2),btGetMatrixElem(mat,0)); - } - return false; -} - -bool btGeneric6DofSpring2Constraint::matrixToEulerZYX(const btMatrix3x3& mat,btVector3& xyz) -{ - // rot = cz*cy cz*sy*sx-cx*sz sz*sx+cz*cx*sy - // cy*sz cz*cx+sz*sy*sx cx*sz*sy-cz*sx - // -sy cy*sx cy*cx - - btScalar fi = btGetMatrixElem(mat,6); - if (fi < btScalar(1.0f)) - { - if (fi > btScalar(-1.0f)) - { - xyz[0] = btAtan2(btGetMatrixElem(mat,7), btGetMatrixElem(mat,8)); - xyz[1] = btAsin(-btGetMatrixElem(mat,6)); - xyz[2] = btAtan2(btGetMatrixElem(mat,3),btGetMatrixElem(mat,0)); - return true; - } - else - { - xyz[0] = btScalar(0.0); - xyz[1] = SIMD_HALF_PI; - xyz[2] = -btAtan2(btGetMatrixElem(mat,1),btGetMatrixElem(mat,2)); - return false; - } - } - else - { - xyz[0] = btScalar(0.0); - xyz[1] = -SIMD_HALF_PI; - xyz[2] = btAtan2(-btGetMatrixElem(mat,1),-btGetMatrixElem(mat,2)); - } - return false; -} - -void btGeneric6DofSpring2Constraint::calculateAngleInfo() -{ - btMatrix3x3 relative_frame = m_calculatedTransformA.getBasis().inverse()*m_calculatedTransformB.getBasis(); - switch (m_rotateOrder) - { - case RO_XYZ : matrixToEulerXYZ(relative_frame,m_calculatedAxisAngleDiff); break; - case RO_XZY : matrixToEulerXZY(relative_frame,m_calculatedAxisAngleDiff); break; - case RO_YXZ : matrixToEulerYXZ(relative_frame,m_calculatedAxisAngleDiff); break; - case RO_YZX : matrixToEulerYZX(relative_frame,m_calculatedAxisAngleDiff); break; - case RO_ZXY : matrixToEulerZXY(relative_frame,m_calculatedAxisAngleDiff); break; - case RO_ZYX : matrixToEulerZYX(relative_frame,m_calculatedAxisAngleDiff); break; - default : btAssert(false); - } - // in euler angle mode we do not actually constrain the angular velocity - // along the axes axis[0] and axis[2] (although we do use axis[1]) : - // - // to get constrain w2-w1 along ...not - // ------ --------------------- ------ - // d(angle[0])/dt = 0 ax[1] x ax[2] ax[0] - // d(angle[1])/dt = 0 ax[1] - // d(angle[2])/dt = 0 ax[0] x ax[1] ax[2] - // - // constraining w2-w1 along an axis 'a' means that a'*(w2-w1)=0. - // to prove the result for angle[0], write the expression for angle[0] from - // GetInfo1 then take the derivative. to prove this for angle[2] it is - // easier to take the euler rate expression for d(angle[2])/dt with respect - // to the components of w and set that to 0. - switch (m_rotateOrder) - { - case RO_XYZ : - { - //Is this the "line of nodes" calculation choosing planes YZ (B coordinate system) and xy (A coordinate system)? (http://en.wikipedia.org/wiki/Euler_angles) - //The two planes are non-homologous, so this is a Tait–Bryan angle formalism and not a proper Euler - //Extrinsic rotations are equal to the reversed order intrinsic rotations so the above xyz extrinsic rotations (axes are fixed) are the same as the zy'x" intrinsic rotations (axes are refreshed after each rotation) - //that is why xy and YZ planes are chosen (this will describe a zy'x" intrinsic rotation) (see the figure on the left at http://en.wikipedia.org/wiki/Euler_angles under Tait–Bryan angles) - // x' = Nperp = N.cross(axis2) - // y' = N = axis2.cross(axis0) - // z' = z - // - // x" = X - // y" = y' - // z" = ?? - //in other words: - //first rotate around z - //second rotate around y'= z.cross(X) - //third rotate around x" = X - //Original XYZ extrinsic rotation order. - //Planes: xy and YZ normals: z, X. Plane intersection (N) is z.cross(X) - btVector3 axis0 = m_calculatedTransformB.getBasis().getColumn(0); - btVector3 axis2 = m_calculatedTransformA.getBasis().getColumn(2); - m_calculatedAxis[1] = axis2.cross(axis0); - m_calculatedAxis[0] = m_calculatedAxis[1].cross(axis2); - m_calculatedAxis[2] = axis0.cross(m_calculatedAxis[1]); - break; - } - case RO_XZY : - { - //planes: xz,ZY normals: y, X - //first rotate around y - //second rotate around z'= y.cross(X) - //third rotate around x" = X - btVector3 axis0 = m_calculatedTransformB.getBasis().getColumn(0); - btVector3 axis1 = m_calculatedTransformA.getBasis().getColumn(1); - m_calculatedAxis[2] = axis0.cross(axis1); - m_calculatedAxis[0] = axis1.cross(m_calculatedAxis[2]); - m_calculatedAxis[1] = m_calculatedAxis[2].cross(axis0); - break; - } - case RO_YXZ : - { - //planes: yx,XZ normals: z, Y - //first rotate around z - //second rotate around x'= z.cross(Y) - //third rotate around y" = Y - btVector3 axis1 = m_calculatedTransformB.getBasis().getColumn(1); - btVector3 axis2 = m_calculatedTransformA.getBasis().getColumn(2); - m_calculatedAxis[0] = axis1.cross(axis2); - m_calculatedAxis[1] = axis2.cross(m_calculatedAxis[0]); - m_calculatedAxis[2] = m_calculatedAxis[0].cross(axis1); - break; - } - case RO_YZX : - { - //planes: yz,ZX normals: x, Y - //first rotate around x - //second rotate around z'= x.cross(Y) - //third rotate around y" = Y - btVector3 axis0 = m_calculatedTransformA.getBasis().getColumn(0); - btVector3 axis1 = m_calculatedTransformB.getBasis().getColumn(1); - m_calculatedAxis[2] = axis0.cross(axis1); - m_calculatedAxis[0] = axis1.cross(m_calculatedAxis[2]); - m_calculatedAxis[1] = m_calculatedAxis[2].cross(axis0); - break; - } - case RO_ZXY : - { - //planes: zx,XY normals: y, Z - //first rotate around y - //second rotate around x'= y.cross(Z) - //third rotate around z" = Z - btVector3 axis1 = m_calculatedTransformA.getBasis().getColumn(1); - btVector3 axis2 = m_calculatedTransformB.getBasis().getColumn(2); - m_calculatedAxis[0] = axis1.cross(axis2); - m_calculatedAxis[1] = axis2.cross(m_calculatedAxis[0]); - m_calculatedAxis[2] = m_calculatedAxis[0].cross(axis1); - break; - } - case RO_ZYX : - { - //planes: zy,YX normals: x, Z - //first rotate around x - //second rotate around y' = x.cross(Z) - //third rotate around z" = Z - btVector3 axis0 = m_calculatedTransformA.getBasis().getColumn(0); - btVector3 axis2 = m_calculatedTransformB.getBasis().getColumn(2); - m_calculatedAxis[1] = axis2.cross(axis0); - m_calculatedAxis[0] = m_calculatedAxis[1].cross(axis2); - m_calculatedAxis[2] = axis0.cross(m_calculatedAxis[1]); - break; - } - default: - btAssert(false); - } - - m_calculatedAxis[0].normalize(); - m_calculatedAxis[1].normalize(); - m_calculatedAxis[2].normalize(); - -} - -void btGeneric6DofSpring2Constraint::calculateTransforms() -{ - calculateTransforms(m_rbA.getCenterOfMassTransform(),m_rbB.getCenterOfMassTransform()); -} - -void btGeneric6DofSpring2Constraint::calculateTransforms(const btTransform& transA,const btTransform& transB) -{ - m_calculatedTransformA = transA * m_frameInA; - m_calculatedTransformB = transB * m_frameInB; - calculateLinearInfo(); - calculateAngleInfo(); - - btScalar miA = getRigidBodyA().getInvMass(); - btScalar miB = getRigidBodyB().getInvMass(); - m_hasStaticBody = (miA < SIMD_EPSILON) || (miB < SIMD_EPSILON); - btScalar miS = miA + miB; - if(miS > btScalar(0.f)) - { - m_factA = miB / miS; - } - else - { - m_factA = btScalar(0.5f); - } - m_factB = btScalar(1.0f) - m_factA; -} - - -void btGeneric6DofSpring2Constraint::testAngularLimitMotor(int axis_index) -{ - btScalar angle = m_calculatedAxisAngleDiff[axis_index]; - angle = btAdjustAngleToLimits(angle, m_angularLimits[axis_index].m_loLimit, m_angularLimits[axis_index].m_hiLimit); - m_angularLimits[axis_index].m_currentPosition = angle; - m_angularLimits[axis_index].testLimitValue(angle); -} - - -void btGeneric6DofSpring2Constraint::getInfo1 (btConstraintInfo1* info) -{ - //prepare constraint - calculateTransforms(m_rbA.getCenterOfMassTransform(),m_rbB.getCenterOfMassTransform()); - info->m_numConstraintRows = 0; - info->nub = 0; - int i; - //test linear limits - for(i = 0; i < 3; i++) - { - if (m_linearLimits.m_currentLimit[i]==4) info->m_numConstraintRows += 2; - else if (m_linearLimits.m_currentLimit[i]!=0) info->m_numConstraintRows += 1; - if (m_linearLimits.m_enableMotor[i] ) info->m_numConstraintRows += 1; - if (m_linearLimits.m_enableSpring[i]) info->m_numConstraintRows += 1; - } - //test angular limits - for (i=0;i<3 ;i++ ) - { - testAngularLimitMotor(i); - if (m_angularLimits[i].m_currentLimit==4) info->m_numConstraintRows += 2; - else if (m_angularLimits[i].m_currentLimit!=0) info->m_numConstraintRows += 1; - if (m_angularLimits[i].m_enableMotor ) info->m_numConstraintRows += 1; - if (m_angularLimits[i].m_enableSpring) info->m_numConstraintRows += 1; - } -} - - -void btGeneric6DofSpring2Constraint::getInfo2 (btConstraintInfo2* info) -{ - const btTransform& transA = m_rbA.getCenterOfMassTransform(); - const btTransform& transB = m_rbB.getCenterOfMassTransform(); - const btVector3& linVelA = m_rbA.getLinearVelocity(); - const btVector3& linVelB = m_rbB.getLinearVelocity(); - const btVector3& angVelA = m_rbA.getAngularVelocity(); - const btVector3& angVelB = m_rbB.getAngularVelocity(); - - // for stability better to solve angular limits first - int row = setAngularLimits(info, 0,transA,transB,linVelA,linVelB,angVelA,angVelB); - setLinearLimits(info, row, transA,transB,linVelA,linVelB,angVelA,angVelB); -} - - -int btGeneric6DofSpring2Constraint::setLinearLimits(btConstraintInfo2* info, int row, const btTransform& transA,const btTransform& transB,const btVector3& linVelA,const btVector3& linVelB,const btVector3& angVelA,const btVector3& angVelB) -{ - //solve linear limits - btRotationalLimitMotor2 limot; - for (int i=0;i<3 ;i++ ) - { - if(m_linearLimits.m_currentLimit[i] || m_linearLimits.m_enableMotor[i] || m_linearLimits.m_enableSpring[i]) - { // re-use rotational motor code - limot.m_bounce = m_linearLimits.m_bounce[i]; - limot.m_currentLimit = m_linearLimits.m_currentLimit[i]; - limot.m_currentPosition = m_linearLimits.m_currentLinearDiff[i]; - limot.m_currentLimitError = m_linearLimits.m_currentLimitError[i]; - limot.m_currentLimitErrorHi = m_linearLimits.m_currentLimitErrorHi[i]; - limot.m_enableMotor = m_linearLimits.m_enableMotor[i]; - limot.m_servoMotor = m_linearLimits.m_servoMotor[i]; - limot.m_servoTarget = m_linearLimits.m_servoTarget[i]; - limot.m_enableSpring = m_linearLimits.m_enableSpring[i]; - limot.m_springStiffness = m_linearLimits.m_springStiffness[i]; - limot.m_springStiffnessLimited = m_linearLimits.m_springStiffnessLimited[i]; - limot.m_springDamping = m_linearLimits.m_springDamping[i]; - limot.m_springDampingLimited = m_linearLimits.m_springDampingLimited[i]; - limot.m_equilibriumPoint = m_linearLimits.m_equilibriumPoint[i]; - limot.m_hiLimit = m_linearLimits.m_upperLimit[i]; - limot.m_loLimit = m_linearLimits.m_lowerLimit[i]; - limot.m_maxMotorForce = m_linearLimits.m_maxMotorForce[i]; - limot.m_targetVelocity = m_linearLimits.m_targetVelocity[i]; - btVector3 axis = m_calculatedTransformA.getBasis().getColumn(i); - int flags = m_flags >> (i * BT_6DOF_FLAGS_AXIS_SHIFT2); - limot.m_stopCFM = (flags & BT_6DOF_FLAGS_CFM_STOP2) ? m_linearLimits.m_stopCFM[i] : info->cfm[0]; - limot.m_stopERP = (flags & BT_6DOF_FLAGS_ERP_STOP2) ? m_linearLimits.m_stopERP[i] : info->erp; - limot.m_motorCFM = (flags & BT_6DOF_FLAGS_CFM_MOTO2) ? m_linearLimits.m_motorCFM[i] : info->cfm[0]; - limot.m_motorERP = (flags & BT_6DOF_FLAGS_ERP_MOTO2) ? m_linearLimits.m_motorERP[i] : info->erp; - - //rotAllowed is a bit of a magic from the original 6dof. The calculation of it here is something that imitates the original behavior as much as possible. - int indx1 = (i + 1) % 3; - int indx2 = (i + 2) % 3; - int rotAllowed = 1; // rotations around orthos to current axis (it is used only when one of the body is static) - #define D6_LIMIT_ERROR_THRESHOLD_FOR_ROTATION 1.0e-3 - bool indx1Violated = m_angularLimits[indx1].m_currentLimit == 1 || - m_angularLimits[indx1].m_currentLimit == 2 || - ( m_angularLimits[indx1].m_currentLimit == 3 && ( m_angularLimits[indx1].m_currentLimitError < -D6_LIMIT_ERROR_THRESHOLD_FOR_ROTATION || m_angularLimits[indx1].m_currentLimitError > D6_LIMIT_ERROR_THRESHOLD_FOR_ROTATION ) ) || - ( m_angularLimits[indx1].m_currentLimit == 4 && ( m_angularLimits[indx1].m_currentLimitError < -D6_LIMIT_ERROR_THRESHOLD_FOR_ROTATION || m_angularLimits[indx1].m_currentLimitErrorHi > D6_LIMIT_ERROR_THRESHOLD_FOR_ROTATION ) ); - bool indx2Violated = m_angularLimits[indx2].m_currentLimit == 1 || - m_angularLimits[indx2].m_currentLimit == 2 || - ( m_angularLimits[indx2].m_currentLimit == 3 && ( m_angularLimits[indx2].m_currentLimitError < -D6_LIMIT_ERROR_THRESHOLD_FOR_ROTATION || m_angularLimits[indx2].m_currentLimitError > D6_LIMIT_ERROR_THRESHOLD_FOR_ROTATION ) ) || - ( m_angularLimits[indx2].m_currentLimit == 4 && ( m_angularLimits[indx2].m_currentLimitError < -D6_LIMIT_ERROR_THRESHOLD_FOR_ROTATION || m_angularLimits[indx2].m_currentLimitErrorHi > D6_LIMIT_ERROR_THRESHOLD_FOR_ROTATION ) ); - if( indx1Violated && indx2Violated ) - { - rotAllowed = 0; - } - row += get_limit_motor_info2(&limot, transA,transB,linVelA,linVelB,angVelA,angVelB, info, row, axis, 0, rotAllowed); - - } - } - return row; -} - - - -int btGeneric6DofSpring2Constraint::setAngularLimits(btConstraintInfo2 *info, int row_offset, const btTransform& transA,const btTransform& transB,const btVector3& linVelA,const btVector3& linVelB,const btVector3& angVelA,const btVector3& angVelB) -{ - int row = row_offset; - - //order of rotational constraint rows - int cIdx[] = {0, 1, 2}; - switch(m_rotateOrder) - { - case RO_XYZ : cIdx[0] = 0; cIdx[1] = 1; cIdx[2] = 2; break; - case RO_XZY : cIdx[0] = 0; cIdx[1] = 2; cIdx[2] = 1; break; - case RO_YXZ : cIdx[0] = 1; cIdx[1] = 0; cIdx[2] = 2; break; - case RO_YZX : cIdx[0] = 1; cIdx[1] = 2; cIdx[2] = 0; break; - case RO_ZXY : cIdx[0] = 2; cIdx[1] = 0; cIdx[2] = 1; break; - case RO_ZYX : cIdx[0] = 2; cIdx[1] = 1; cIdx[2] = 0; break; - default : btAssert(false); - } - - for (int ii = 0; ii < 3 ; ii++ ) - { - int i = cIdx[ii]; - if(m_angularLimits[i].m_currentLimit || m_angularLimits[i].m_enableMotor || m_angularLimits[i].m_enableSpring) - { - btVector3 axis = getAxis(i); - int flags = m_flags >> ((i + 3) * BT_6DOF_FLAGS_AXIS_SHIFT2); - if(!(flags & BT_6DOF_FLAGS_CFM_STOP2)) - { - m_angularLimits[i].m_stopCFM = info->cfm[0]; - } - if(!(flags & BT_6DOF_FLAGS_ERP_STOP2)) - { - m_angularLimits[i].m_stopERP = info->erp; - } - if(!(flags & BT_6DOF_FLAGS_CFM_MOTO2)) - { - m_angularLimits[i].m_motorCFM = info->cfm[0]; - } - if(!(flags & BT_6DOF_FLAGS_ERP_MOTO2)) - { - m_angularLimits[i].m_motorERP = info->erp; - } - row += get_limit_motor_info2(&m_angularLimits[i],transA,transB,linVelA,linVelB,angVelA,angVelB, info,row,axis,1); - } - } - - return row; -} - - -void btGeneric6DofSpring2Constraint::setFrames(const btTransform& frameA, const btTransform& frameB) -{ - m_frameInA = frameA; - m_frameInB = frameB; - buildJacobian(); - calculateTransforms(); -} - - -void btGeneric6DofSpring2Constraint::calculateLinearInfo() -{ - m_calculatedLinearDiff = m_calculatedTransformB.getOrigin() - m_calculatedTransformA.getOrigin(); - m_calculatedLinearDiff = m_calculatedTransformA.getBasis().inverse() * m_calculatedLinearDiff; - for(int i = 0; i < 3; i++) - { - m_linearLimits.m_currentLinearDiff[i] = m_calculatedLinearDiff[i]; - m_linearLimits.testLimitValue(i, m_calculatedLinearDiff[i]); - } -} - -void btGeneric6DofSpring2Constraint::calculateJacobi(btRotationalLimitMotor2 * limot, const btTransform& transA,const btTransform& transB, btConstraintInfo2 *info, int srow, btVector3& ax1, int rotational, int rotAllowed) -{ - btScalar *J1 = rotational ? info->m_J1angularAxis : info->m_J1linearAxis; - btScalar *J2 = rotational ? info->m_J2angularAxis : info->m_J2linearAxis; - - J1[srow+0] = ax1[0]; - J1[srow+1] = ax1[1]; - J1[srow+2] = ax1[2]; - - J2[srow+0] = -ax1[0]; - J2[srow+1] = -ax1[1]; - J2[srow+2] = -ax1[2]; - - if(!rotational) - { - btVector3 tmpA, tmpB, relA, relB; - // get vector from bodyB to frameB in WCS - relB = m_calculatedTransformB.getOrigin() - transB.getOrigin(); - // same for bodyA - relA = m_calculatedTransformA.getOrigin() - transA.getOrigin(); - tmpA = relA.cross(ax1); - tmpB = relB.cross(ax1); - if(m_hasStaticBody && (!rotAllowed)) - { - tmpA *= m_factA; - tmpB *= m_factB; - } - int i; - for (i=0; i<3; i++) info->m_J1angularAxis[srow+i] = tmpA[i]; - for (i=0; i<3; i++) info->m_J2angularAxis[srow+i] = -tmpB[i]; - } -} - - -int btGeneric6DofSpring2Constraint::get_limit_motor_info2( - btRotationalLimitMotor2 * limot, - const btTransform& transA,const btTransform& transB,const btVector3& linVelA,const btVector3& linVelB,const btVector3& angVelA,const btVector3& angVelB, - btConstraintInfo2 *info, int row, btVector3& ax1, int rotational,int rotAllowed) -{ - int count = 0; - int srow = row * info->rowskip; - - if (limot->m_currentLimit==4) - { - btScalar vel = rotational ? angVelA.dot(ax1) - angVelB.dot(ax1) : linVelA.dot(ax1) - linVelB.dot(ax1); - - calculateJacobi(limot,transA,transB,info,srow,ax1,rotational,rotAllowed); - info->m_constraintError[srow] = info->fps * limot->m_stopERP * limot->m_currentLimitError * (rotational ? -1 : 1); - if (rotational) { - if (info->m_constraintError[srow]-vel*limot->m_stopERP > 0) { - btScalar bounceerror = -limot->m_bounce* vel; - if (bounceerror > info->m_constraintError[srow]) info->m_constraintError[srow] = bounceerror; - } - } else { - if (info->m_constraintError[srow]-vel*limot->m_stopERP < 0) { - btScalar bounceerror = -limot->m_bounce* vel; - if (bounceerror < info->m_constraintError[srow]) info->m_constraintError[srow] = bounceerror; - } - } - info->m_lowerLimit[srow] = rotational ? 0 : -SIMD_INFINITY; - info->m_upperLimit[srow] = rotational ? SIMD_INFINITY : 0; - info->cfm[srow] = limot->m_stopCFM; - srow += info->rowskip; - ++count; - - calculateJacobi(limot,transA,transB,info,srow,ax1,rotational,rotAllowed); - info->m_constraintError[srow] = info->fps * limot->m_stopERP * limot->m_currentLimitErrorHi * (rotational ? -1 : 1); - if (rotational) { - if (info->m_constraintError[srow]-vel*limot->m_stopERP < 0) { - btScalar bounceerror = -limot->m_bounce* vel; - if (bounceerror < info->m_constraintError[srow]) info->m_constraintError[srow] = bounceerror; - } - } else { - if (info->m_constraintError[srow]-vel*limot->m_stopERP > 0) { - btScalar bounceerror = -limot->m_bounce* vel; - if (bounceerror > info->m_constraintError[srow]) info->m_constraintError[srow] = bounceerror; - } - } - info->m_lowerLimit[srow] = rotational ? -SIMD_INFINITY : 0; - info->m_upperLimit[srow] = rotational ? 0 : SIMD_INFINITY; - info->cfm[srow] = limot->m_stopCFM; - srow += info->rowskip; - ++count; - } else - if (limot->m_currentLimit==3) - { - calculateJacobi(limot,transA,transB,info,srow,ax1,rotational,rotAllowed); - info->m_constraintError[srow] = info->fps * limot->m_stopERP * limot->m_currentLimitError * (rotational ? -1 : 1); - info->m_lowerLimit[srow] = -SIMD_INFINITY; - info->m_upperLimit[srow] = SIMD_INFINITY; - info->cfm[srow] = limot->m_stopCFM; - srow += info->rowskip; - ++count; - } - - if (limot->m_enableMotor && !limot->m_servoMotor) - { - calculateJacobi(limot,transA,transB,info,srow,ax1,rotational,rotAllowed); - btScalar tag_vel = rotational ? limot->m_targetVelocity : -limot->m_targetVelocity; - btScalar mot_fact = getMotorFactor(limot->m_currentPosition, - limot->m_loLimit, - limot->m_hiLimit, - tag_vel, - info->fps * limot->m_motorERP); - info->m_constraintError[srow] = mot_fact * limot->m_targetVelocity; - info->m_lowerLimit[srow] = -limot->m_maxMotorForce; - info->m_upperLimit[srow] = limot->m_maxMotorForce; - info->cfm[srow] = limot->m_motorCFM; - srow += info->rowskip; - ++count; - } - - if (limot->m_enableMotor && limot->m_servoMotor) - { - btScalar error = limot->m_currentPosition - limot->m_servoTarget; - btScalar curServoTarget = limot->m_servoTarget; - if (rotational) - { - if (error > SIMD_PI) - { - error -= SIMD_2_PI; - curServoTarget +=SIMD_2_PI; - } - if (error < -SIMD_PI) - { - error += SIMD_2_PI; - curServoTarget -=SIMD_2_PI; - } - } - - calculateJacobi(limot,transA,transB,info,srow,ax1,rotational,rotAllowed); - btScalar targetvelocity = error<0 ? -limot->m_targetVelocity : limot->m_targetVelocity; - btScalar tag_vel = -targetvelocity; - btScalar mot_fact; - if(error != 0) - { - btScalar lowLimit; - btScalar hiLimit; - if(limot->m_loLimit > limot->m_hiLimit) - { - lowLimit = error > 0 ? curServoTarget : -SIMD_INFINITY; - hiLimit = error < 0 ? curServoTarget : SIMD_INFINITY; - } - else - { - lowLimit = error > 0 && curServoTarget>limot->m_loLimit ? curServoTarget : limot->m_loLimit; - hiLimit = error < 0 && curServoTarget<limot->m_hiLimit ? curServoTarget : limot->m_hiLimit; - } - mot_fact = getMotorFactor(limot->m_currentPosition, lowLimit, hiLimit, tag_vel, info->fps * limot->m_motorERP); - } - else - { - mot_fact = 0; - } - info->m_constraintError[srow] = mot_fact * targetvelocity * (rotational ? -1 : 1); - info->m_lowerLimit[srow] = -limot->m_maxMotorForce; - info->m_upperLimit[srow] = limot->m_maxMotorForce; - info->cfm[srow] = limot->m_motorCFM; - srow += info->rowskip; - ++count; - } - - if (limot->m_enableSpring) - { - btScalar error = limot->m_currentPosition - limot->m_equilibriumPoint; - calculateJacobi(limot,transA,transB,info,srow,ax1,rotational,rotAllowed); - - //btScalar cfm = 1.0 / ((1.0/info->fps)*limot->m_springStiffness+ limot->m_springDamping); - //if(cfm > 0.99999) - // cfm = 0.99999; - //btScalar erp = (1.0/info->fps)*limot->m_springStiffness / ((1.0/info->fps)*limot->m_springStiffness + limot->m_springDamping); - //info->m_constraintError[srow] = info->fps * erp * error * (rotational ? -1.0 : 1.0); - //info->m_lowerLimit[srow] = -SIMD_INFINITY; - //info->m_upperLimit[srow] = SIMD_INFINITY; - - btScalar dt = BT_ONE / info->fps; - btScalar kd = limot->m_springDamping; - btScalar ks = limot->m_springStiffness; - btScalar vel = rotational ? angVelA.dot(ax1) - angVelB.dot(ax1) : linVelA.dot(ax1) - linVelB.dot(ax1); -// btScalar erp = 0.1; - btScalar cfm = BT_ZERO; - btScalar mA = BT_ONE / m_rbA.getInvMass(); - btScalar mB = BT_ONE / m_rbB.getInvMass(); - btScalar m = mA > mB ? mB : mA; - btScalar angularfreq = sqrt(ks / m); - - - //limit stiffness (the spring should not be sampled faster that the quarter of its angular frequency) - if(limot->m_springStiffnessLimited && 0.25 < angularfreq * dt) - { - ks = BT_ONE / dt / dt / btScalar(16.0) * m; - } - //avoid damping that would blow up the spring - if(limot->m_springDampingLimited && kd * dt > m) - { - kd = m / dt; - } - btScalar fs = ks * error * dt; - btScalar fd = -kd * (vel) * (rotational ? -1 : 1) * dt; - btScalar f = (fs+fd); - - info->m_constraintError[srow] = (vel + f * (rotational ? -1 : 1)) ; - - btScalar minf = f < fd ? f : fd; - btScalar maxf = f < fd ? fd : f; - if(!rotational) - { - info->m_lowerLimit[srow] = minf > 0 ? 0 : minf; - info->m_upperLimit[srow] = maxf < 0 ? 0 : maxf; - } - else - { - info->m_lowerLimit[srow] = -maxf > 0 ? 0 : -maxf; - info->m_upperLimit[srow] = -minf < 0 ? 0 : -minf; - } - - info->cfm[srow] = cfm; - srow += info->rowskip; - ++count; - } - - return count; -} - - -//override the default global value of a parameter (such as ERP or CFM), optionally provide the axis (0..5). -//If no axis is provided, it uses the default axis for this constraint. -void btGeneric6DofSpring2Constraint::setParam(int num, btScalar value, int axis) -{ - if((axis >= 0) && (axis < 3)) - { - switch(num) - { - case BT_CONSTRAINT_STOP_ERP : - m_linearLimits.m_stopERP[axis] = value; - m_flags |= BT_6DOF_FLAGS_ERP_STOP2 << (axis * BT_6DOF_FLAGS_AXIS_SHIFT2); - break; - case BT_CONSTRAINT_STOP_CFM : - m_linearLimits.m_stopCFM[axis] = value; - m_flags |= BT_6DOF_FLAGS_CFM_STOP2 << (axis * BT_6DOF_FLAGS_AXIS_SHIFT2); - break; - case BT_CONSTRAINT_ERP : - m_linearLimits.m_motorERP[axis] = value; - m_flags |= BT_6DOF_FLAGS_ERP_MOTO2 << (axis * BT_6DOF_FLAGS_AXIS_SHIFT2); - break; - case BT_CONSTRAINT_CFM : - m_linearLimits.m_motorCFM[axis] = value; - m_flags |= BT_6DOF_FLAGS_CFM_MOTO2 << (axis * BT_6DOF_FLAGS_AXIS_SHIFT2); - break; - default : - btAssertConstrParams(0); - } - } - else if((axis >=3) && (axis < 6)) - { - switch(num) - { - case BT_CONSTRAINT_STOP_ERP : - m_angularLimits[axis - 3].m_stopERP = value; - m_flags |= BT_6DOF_FLAGS_ERP_STOP2 << (axis * BT_6DOF_FLAGS_AXIS_SHIFT2); - break; - case BT_CONSTRAINT_STOP_CFM : - m_angularLimits[axis - 3].m_stopCFM = value; - m_flags |= BT_6DOF_FLAGS_CFM_STOP2 << (axis * BT_6DOF_FLAGS_AXIS_SHIFT2); - break; - case BT_CONSTRAINT_ERP : - m_angularLimits[axis - 3].m_motorERP = value; - m_flags |= BT_6DOF_FLAGS_ERP_MOTO2 << (axis * BT_6DOF_FLAGS_AXIS_SHIFT2); - break; - case BT_CONSTRAINT_CFM : - m_angularLimits[axis - 3].m_motorCFM = value; - m_flags |= BT_6DOF_FLAGS_CFM_MOTO2 << (axis * BT_6DOF_FLAGS_AXIS_SHIFT2); - break; - default : - btAssertConstrParams(0); - } - } - else - { - btAssertConstrParams(0); - } -} - -//return the local value of parameter -btScalar btGeneric6DofSpring2Constraint::getParam(int num, int axis) const -{ - btScalar retVal = 0; - if((axis >= 0) && (axis < 3)) - { - switch(num) - { - case BT_CONSTRAINT_STOP_ERP : - btAssertConstrParams(m_flags & (BT_6DOF_FLAGS_ERP_STOP2 << (axis * BT_6DOF_FLAGS_AXIS_SHIFT2))); - retVal = m_linearLimits.m_stopERP[axis]; - break; - case BT_CONSTRAINT_STOP_CFM : - btAssertConstrParams(m_flags & (BT_6DOF_FLAGS_CFM_STOP2 << (axis * BT_6DOF_FLAGS_AXIS_SHIFT2))); - retVal = m_linearLimits.m_stopCFM[axis]; - break; - case BT_CONSTRAINT_ERP : - btAssertConstrParams(m_flags & (BT_6DOF_FLAGS_ERP_MOTO2 << (axis * BT_6DOF_FLAGS_AXIS_SHIFT2))); - retVal = m_linearLimits.m_motorERP[axis]; - break; - case BT_CONSTRAINT_CFM : - btAssertConstrParams(m_flags & (BT_6DOF_FLAGS_CFM_MOTO2 << (axis * BT_6DOF_FLAGS_AXIS_SHIFT2))); - retVal = m_linearLimits.m_motorCFM[axis]; - break; - default : - btAssertConstrParams(0); - } - } - else if((axis >=3) && (axis < 6)) - { - switch(num) - { - case BT_CONSTRAINT_STOP_ERP : - btAssertConstrParams(m_flags & (BT_6DOF_FLAGS_ERP_STOP2 << (axis * BT_6DOF_FLAGS_AXIS_SHIFT2))); - retVal = m_angularLimits[axis - 3].m_stopERP; - break; - case BT_CONSTRAINT_STOP_CFM : - btAssertConstrParams(m_flags & (BT_6DOF_FLAGS_CFM_STOP2 << (axis * BT_6DOF_FLAGS_AXIS_SHIFT2))); - retVal = m_angularLimits[axis - 3].m_stopCFM; - break; - case BT_CONSTRAINT_ERP : - btAssertConstrParams(m_flags & (BT_6DOF_FLAGS_ERP_MOTO2 << (axis * BT_6DOF_FLAGS_AXIS_SHIFT2))); - retVal = m_angularLimits[axis - 3].m_motorERP; - break; - case BT_CONSTRAINT_CFM : - btAssertConstrParams(m_flags & (BT_6DOF_FLAGS_CFM_MOTO2 << (axis * BT_6DOF_FLAGS_AXIS_SHIFT2))); - retVal = m_angularLimits[axis - 3].m_motorCFM; - break; - default : - btAssertConstrParams(0); - } - } - else - { - btAssertConstrParams(0); - } - return retVal; -} - - - -void btGeneric6DofSpring2Constraint::setAxis(const btVector3& axis1,const btVector3& axis2) -{ - btVector3 zAxis = axis1.normalized(); - btVector3 yAxis = axis2.normalized(); - btVector3 xAxis = yAxis.cross(zAxis); // we want right coordinate system - - btTransform frameInW; - frameInW.setIdentity(); - frameInW.getBasis().setValue( xAxis[0], yAxis[0], zAxis[0], - xAxis[1], yAxis[1], zAxis[1], - xAxis[2], yAxis[2], zAxis[2]); - - // now get constraint frame in local coordinate systems - m_frameInA = m_rbA.getCenterOfMassTransform().inverse() * frameInW; - m_frameInB = m_rbB.getCenterOfMassTransform().inverse() * frameInW; - - calculateTransforms(); -} - -void btGeneric6DofSpring2Constraint::setBounce(int index, btScalar bounce) -{ - btAssert((index >= 0) && (index < 6)); - if (index<3) - m_linearLimits.m_bounce[index] = bounce; - else - m_angularLimits[index - 3].m_bounce = bounce; -} - -void btGeneric6DofSpring2Constraint::enableMotor(int index, bool onOff) -{ - btAssert((index >= 0) && (index < 6)); - if (index<3) - m_linearLimits.m_enableMotor[index] = onOff; - else - m_angularLimits[index - 3].m_enableMotor = onOff; -} - -void btGeneric6DofSpring2Constraint::setServo(int index, bool onOff) -{ - btAssert((index >= 0) && (index < 6)); - if (index<3) - m_linearLimits.m_servoMotor[index] = onOff; - else - m_angularLimits[index - 3].m_servoMotor = onOff; -} - -void btGeneric6DofSpring2Constraint::setTargetVelocity(int index, btScalar velocity) -{ - btAssert((index >= 0) && (index < 6)); - if (index<3) - m_linearLimits.m_targetVelocity[index] = velocity; - else - m_angularLimits[index - 3].m_targetVelocity = velocity; -} - - - -void btGeneric6DofSpring2Constraint::setServoTarget(int index, btScalar targetOrg) -{ - btAssert((index >= 0) && (index < 6)); - if (index<3) - { - m_linearLimits.m_servoTarget[index] = targetOrg; - } - else - { - //wrap between -PI and PI, see also - //https://stackoverflow.com/questions/4633177/c-how-to-wrap-a-float-to-the-interval-pi-pi - - btScalar target = targetOrg+SIMD_PI; - if (1) - { - btScalar m = target - SIMD_2_PI * floor(target/SIMD_2_PI); - // handle boundary cases resulted from floating-point cut off: - { - if (m>=SIMD_2_PI) - { - target = 0; - } else - { - if (m<0 ) - { - if (SIMD_2_PI+m == SIMD_2_PI) - target = 0; - else - target = SIMD_2_PI+m; - } - else - { - target = m; - } - } - } - target -= SIMD_PI; - } - - m_angularLimits[index - 3].m_servoTarget = target; - } -} - -void btGeneric6DofSpring2Constraint::setMaxMotorForce(int index, btScalar force) -{ - btAssert((index >= 0) && (index < 6)); - if (index<3) - m_linearLimits.m_maxMotorForce[index] = force; - else - m_angularLimits[index - 3].m_maxMotorForce = force; -} - -void btGeneric6DofSpring2Constraint::enableSpring(int index, bool onOff) -{ - btAssert((index >= 0) && (index < 6)); - if (index<3) - m_linearLimits.m_enableSpring[index] = onOff; - else - m_angularLimits[index - 3] .m_enableSpring = onOff; -} - -void btGeneric6DofSpring2Constraint::setStiffness(int index, btScalar stiffness, bool limitIfNeeded) -{ - btAssert((index >= 0) && (index < 6)); - if (index<3) { - m_linearLimits.m_springStiffness[index] = stiffness; - m_linearLimits.m_springStiffnessLimited[index] = limitIfNeeded; - } else { - m_angularLimits[index - 3].m_springStiffness = stiffness; - m_angularLimits[index - 3].m_springStiffnessLimited = limitIfNeeded; - } -} - -void btGeneric6DofSpring2Constraint::setDamping(int index, btScalar damping, bool limitIfNeeded) -{ - btAssert((index >= 0) && (index < 6)); - if (index<3) { - m_linearLimits.m_springDamping[index] = damping; - m_linearLimits.m_springDampingLimited[index] = limitIfNeeded; - } else { - m_angularLimits[index - 3].m_springDamping = damping; - m_angularLimits[index - 3].m_springDampingLimited = limitIfNeeded; - } -} - -void btGeneric6DofSpring2Constraint::setEquilibriumPoint() -{ - calculateTransforms(); - int i; - for( i = 0; i < 3; i++) - m_linearLimits.m_equilibriumPoint[i] = m_calculatedLinearDiff[i]; - for(i = 0; i < 3; i++) - m_angularLimits[i].m_equilibriumPoint = m_calculatedAxisAngleDiff[i]; -} - -void btGeneric6DofSpring2Constraint::setEquilibriumPoint(int index) -{ - btAssert((index >= 0) && (index < 6)); - calculateTransforms(); - if (index<3) - m_linearLimits.m_equilibriumPoint[index] = m_calculatedLinearDiff[index]; - else - m_angularLimits[index - 3] .m_equilibriumPoint = m_calculatedAxisAngleDiff[index - 3]; -} - -void btGeneric6DofSpring2Constraint::setEquilibriumPoint(int index, btScalar val) -{ - btAssert((index >= 0) && (index < 6)); - if (index<3) - m_linearLimits.m_equilibriumPoint[index] = val; - else - m_angularLimits[index - 3] .m_equilibriumPoint = val; -} - - -//////////////////////////// btRotationalLimitMotor2 //////////////////////////////////// - -void btRotationalLimitMotor2::testLimitValue(btScalar test_value) -{ - //we can't normalize the angles here because we would lost the sign that we use later, but it doesn't seem to be a problem - if(m_loLimit > m_hiLimit) { - m_currentLimit = 0; - m_currentLimitError = btScalar(0.f); - } - else if(m_loLimit == m_hiLimit) { - m_currentLimitError = test_value - m_loLimit; - m_currentLimit = 3; - } else { - m_currentLimitError = test_value - m_loLimit; - m_currentLimitErrorHi = test_value - m_hiLimit; - m_currentLimit = 4; - } -} - -//////////////////////////// btTranslationalLimitMotor2 //////////////////////////////////// - -void btTranslationalLimitMotor2::testLimitValue(int limitIndex, btScalar test_value) -{ - btScalar loLimit = m_lowerLimit[limitIndex]; - btScalar hiLimit = m_upperLimit[limitIndex]; - if(loLimit > hiLimit) { - m_currentLimitError[limitIndex] = 0; - m_currentLimit[limitIndex] = 0; - } - else if(loLimit == hiLimit) { - m_currentLimitError[limitIndex] = test_value - loLimit; - m_currentLimit[limitIndex] = 3; - } else { - m_currentLimitError[limitIndex] = test_value - loLimit; - m_currentLimitErrorHi[limitIndex] = test_value - hiLimit; - m_currentLimit[limitIndex] = 4; - } -} - - diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGeneric6DofSpring2Constraint.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGeneric6DofSpring2Constraint.h deleted file mode 100644 index 66d1769583..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGeneric6DofSpring2Constraint.h +++ /dev/null @@ -1,679 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -/* -2014 May: btGeneric6DofSpring2Constraint is created from the original (2.82.2712) btGeneric6DofConstraint by Gabor Puhr and Tamas Umenhoffer -Pros: -- Much more accurate and stable in a lot of situation. (Especially when a sleeping chain of RBs connected with 6dof2 is pulled) -- Stable and accurate spring with minimal energy loss that works with all of the solvers. (latter is not true for the original 6dof spring) -- Servo motor functionality -- Much more accurate bouncing. 0 really means zero bouncing (not true for the original 6odf) and there is only a minimal energy loss when the value is 1 (because of the solvers' precision) -- Rotation order for the Euler system can be set. (One axis' freedom is still limited to pi/2) - -Cons: -- It is slower than the original 6dof. There is no exact ratio, but half speed is a good estimation. -- At bouncing the correct velocity is calculated, but not the correct position. (it is because of the solver can correct position or velocity, but not both.) -*/ - -/// 2009 March: btGeneric6DofConstraint refactored by Roman Ponomarev -/// Added support for generic constraint solver through getInfo1/getInfo2 methods - -/* -2007-09-09 -btGeneric6DofConstraint Refactored by Francisco Le?n -email: projectileman@yahoo.com -http://gimpact.sf.net -*/ - - -#ifndef BT_GENERIC_6DOF_CONSTRAINT2_H -#define BT_GENERIC_6DOF_CONSTRAINT2_H - -#include "LinearMath/btVector3.h" -#include "btJacobianEntry.h" -#include "btTypedConstraint.h" - -class btRigidBody; - - -#ifdef BT_USE_DOUBLE_PRECISION -#define btGeneric6DofSpring2ConstraintData2 btGeneric6DofSpring2ConstraintDoubleData2 -#define btGeneric6DofSpring2ConstraintDataName "btGeneric6DofSpring2ConstraintDoubleData2" -#else -#define btGeneric6DofSpring2ConstraintData2 btGeneric6DofSpring2ConstraintData -#define btGeneric6DofSpring2ConstraintDataName "btGeneric6DofSpring2ConstraintData" -#endif //BT_USE_DOUBLE_PRECISION - -enum RotateOrder -{ - RO_XYZ=0, - RO_XZY, - RO_YXZ, - RO_YZX, - RO_ZXY, - RO_ZYX -}; - -class btRotationalLimitMotor2 -{ -public: -// upper < lower means free -// upper == lower means locked -// upper > lower means limited - btScalar m_loLimit; - btScalar m_hiLimit; - btScalar m_bounce; - btScalar m_stopERP; - btScalar m_stopCFM; - btScalar m_motorERP; - btScalar m_motorCFM; - bool m_enableMotor; - btScalar m_targetVelocity; - btScalar m_maxMotorForce; - bool m_servoMotor; - btScalar m_servoTarget; - bool m_enableSpring; - btScalar m_springStiffness; - bool m_springStiffnessLimited; - btScalar m_springDamping; - bool m_springDampingLimited; - btScalar m_equilibriumPoint; - - btScalar m_currentLimitError; - btScalar m_currentLimitErrorHi; - btScalar m_currentPosition; - int m_currentLimit; - - btRotationalLimitMotor2() - { - m_loLimit = 1.0f; - m_hiLimit = -1.0f; - m_bounce = 0.0f; - m_stopERP = 0.2f; - m_stopCFM = 0.f; - m_motorERP = 0.9f; - m_motorCFM = 0.f; - m_enableMotor = false; - m_targetVelocity = 0; - m_maxMotorForce = 0.1f; - m_servoMotor = false; - m_servoTarget = 0; - m_enableSpring = false; - m_springStiffness = 0; - m_springStiffnessLimited = false; - m_springDamping = 0; - m_springDampingLimited = false; - m_equilibriumPoint = 0; - - m_currentLimitError = 0; - m_currentLimitErrorHi = 0; - m_currentPosition = 0; - m_currentLimit = 0; - } - - btRotationalLimitMotor2(const btRotationalLimitMotor2 & limot) - { - m_loLimit = limot.m_loLimit; - m_hiLimit = limot.m_hiLimit; - m_bounce = limot.m_bounce; - m_stopERP = limot.m_stopERP; - m_stopCFM = limot.m_stopCFM; - m_motorERP = limot.m_motorERP; - m_motorCFM = limot.m_motorCFM; - m_enableMotor = limot.m_enableMotor; - m_targetVelocity = limot.m_targetVelocity; - m_maxMotorForce = limot.m_maxMotorForce; - m_servoMotor = limot.m_servoMotor; - m_servoTarget = limot.m_servoTarget; - m_enableSpring = limot.m_enableSpring; - m_springStiffness = limot.m_springStiffness; - m_springStiffnessLimited = limot.m_springStiffnessLimited; - m_springDamping = limot.m_springDamping; - m_springDampingLimited = limot.m_springDampingLimited; - m_equilibriumPoint = limot.m_equilibriumPoint; - - m_currentLimitError = limot.m_currentLimitError; - m_currentLimitErrorHi = limot.m_currentLimitErrorHi; - m_currentPosition = limot.m_currentPosition; - m_currentLimit = limot.m_currentLimit; - } - - - bool isLimited() - { - if(m_loLimit > m_hiLimit) return false; - return true; - } - - void testLimitValue(btScalar test_value); -}; - - - -class btTranslationalLimitMotor2 -{ -public: -// upper < lower means free -// upper == lower means locked -// upper > lower means limited - btVector3 m_lowerLimit; - btVector3 m_upperLimit; - btVector3 m_bounce; - btVector3 m_stopERP; - btVector3 m_stopCFM; - btVector3 m_motorERP; - btVector3 m_motorCFM; - bool m_enableMotor[3]; - bool m_servoMotor[3]; - bool m_enableSpring[3]; - btVector3 m_servoTarget; - btVector3 m_springStiffness; - bool m_springStiffnessLimited[3]; - btVector3 m_springDamping; - bool m_springDampingLimited[3]; - btVector3 m_equilibriumPoint; - btVector3 m_targetVelocity; - btVector3 m_maxMotorForce; - - btVector3 m_currentLimitError; - btVector3 m_currentLimitErrorHi; - btVector3 m_currentLinearDiff; - int m_currentLimit[3]; - - btTranslationalLimitMotor2() - { - m_lowerLimit .setValue(0.f , 0.f , 0.f ); - m_upperLimit .setValue(0.f , 0.f , 0.f ); - m_bounce .setValue(0.f , 0.f , 0.f ); - m_stopERP .setValue(0.2f, 0.2f, 0.2f); - m_stopCFM .setValue(0.f , 0.f , 0.f ); - m_motorERP .setValue(0.9f, 0.9f, 0.9f); - m_motorCFM .setValue(0.f , 0.f , 0.f ); - - m_currentLimitError .setValue(0.f , 0.f , 0.f ); - m_currentLimitErrorHi.setValue(0.f , 0.f , 0.f ); - m_currentLinearDiff .setValue(0.f , 0.f , 0.f ); - - for(int i=0; i < 3; i++) - { - m_enableMotor[i] = false; - m_servoMotor[i] = false; - m_enableSpring[i] = false; - m_servoTarget[i] = btScalar(0.f); - m_springStiffness[i] = btScalar(0.f); - m_springStiffnessLimited[i] = false; - m_springDamping[i] = btScalar(0.f); - m_springDampingLimited[i] = false; - m_equilibriumPoint[i] = btScalar(0.f); - m_targetVelocity[i] = btScalar(0.f); - m_maxMotorForce[i] = btScalar(0.f); - - m_currentLimit[i] = 0; - } - } - - btTranslationalLimitMotor2(const btTranslationalLimitMotor2 & other ) - { - m_lowerLimit = other.m_lowerLimit; - m_upperLimit = other.m_upperLimit; - m_bounce = other.m_bounce; - m_stopERP = other.m_stopERP; - m_stopCFM = other.m_stopCFM; - m_motorERP = other.m_motorERP; - m_motorCFM = other.m_motorCFM; - - m_currentLimitError = other.m_currentLimitError; - m_currentLimitErrorHi = other.m_currentLimitErrorHi; - m_currentLinearDiff = other.m_currentLinearDiff; - - for(int i=0; i < 3; i++) - { - m_enableMotor[i] = other.m_enableMotor[i]; - m_servoMotor[i] = other.m_servoMotor[i]; - m_enableSpring[i] = other.m_enableSpring[i]; - m_servoTarget[i] = other.m_servoTarget[i]; - m_springStiffness[i] = other.m_springStiffness[i]; - m_springStiffnessLimited[i] = other.m_springStiffnessLimited[i]; - m_springDamping[i] = other.m_springDamping[i]; - m_springDampingLimited[i] = other.m_springDampingLimited[i]; - m_equilibriumPoint[i] = other.m_equilibriumPoint[i]; - m_targetVelocity[i] = other.m_targetVelocity[i]; - m_maxMotorForce[i] = other.m_maxMotorForce[i]; - - m_currentLimit[i] = other.m_currentLimit[i]; - } - } - - inline bool isLimited(int limitIndex) - { - return (m_upperLimit[limitIndex] >= m_lowerLimit[limitIndex]); - } - - void testLimitValue(int limitIndex, btScalar test_value); -}; - -enum bt6DofFlags2 -{ - BT_6DOF_FLAGS_CFM_STOP2 = 1, - BT_6DOF_FLAGS_ERP_STOP2 = 2, - BT_6DOF_FLAGS_CFM_MOTO2 = 4, - BT_6DOF_FLAGS_ERP_MOTO2 = 8 -}; -#define BT_6DOF_FLAGS_AXIS_SHIFT2 4 // bits per axis - - -ATTRIBUTE_ALIGNED16(class) btGeneric6DofSpring2Constraint : public btTypedConstraint -{ -protected: - - btTransform m_frameInA; - btTransform m_frameInB; - - btJacobianEntry m_jacLinear[3]; - btJacobianEntry m_jacAng[3]; - - btTranslationalLimitMotor2 m_linearLimits; - btRotationalLimitMotor2 m_angularLimits[3]; - - RotateOrder m_rotateOrder; - -protected: - - btTransform m_calculatedTransformA; - btTransform m_calculatedTransformB; - btVector3 m_calculatedAxisAngleDiff; - btVector3 m_calculatedAxis[3]; - btVector3 m_calculatedLinearDiff; - btScalar m_factA; - btScalar m_factB; - bool m_hasStaticBody; - int m_flags; - - btGeneric6DofSpring2Constraint& operator=(btGeneric6DofSpring2Constraint&) - { - btAssert(0); - return *this; - } - - int setAngularLimits(btConstraintInfo2 *info, int row_offset,const btTransform& transA,const btTransform& transB,const btVector3& linVelA,const btVector3& linVelB,const btVector3& angVelA,const btVector3& angVelB); - int setLinearLimits(btConstraintInfo2 *info, int row, const btTransform& transA,const btTransform& transB,const btVector3& linVelA,const btVector3& linVelB,const btVector3& angVelA,const btVector3& angVelB); - - void calculateLinearInfo(); - void calculateAngleInfo(); - void testAngularLimitMotor(int axis_index); - - void calculateJacobi(btRotationalLimitMotor2* limot, const btTransform& transA,const btTransform& transB, btConstraintInfo2* info, int srow, btVector3& ax1, int rotational, int rotAllowed); - int get_limit_motor_info2(btRotationalLimitMotor2* limot, - const btTransform& transA,const btTransform& transB,const btVector3& linVelA,const btVector3& linVelB,const btVector3& angVelA,const btVector3& angVelB, - btConstraintInfo2* info, int row, btVector3& ax1, int rotational, int rotAllowed = false); - -public: - - BT_DECLARE_ALIGNED_ALLOCATOR(); - - btGeneric6DofSpring2Constraint(btRigidBody& rbA, btRigidBody& rbB, const btTransform& frameInA, const btTransform& frameInB, RotateOrder rotOrder = RO_XYZ); - btGeneric6DofSpring2Constraint(btRigidBody& rbB, const btTransform& frameInB, RotateOrder rotOrder = RO_XYZ); - - virtual void buildJacobian() {} - virtual void getInfo1 (btConstraintInfo1* info); - virtual void getInfo2 (btConstraintInfo2* info); - virtual int calculateSerializeBufferSize() const; - virtual const char* serialize(void* dataBuffer, btSerializer* serializer) const; - - btRotationalLimitMotor2* getRotationalLimitMotor(int index) { return &m_angularLimits[index]; } - btTranslationalLimitMotor2* getTranslationalLimitMotor() { return &m_linearLimits; } - - // Calculates the global transform for the joint offset for body A an B, and also calculates the angle differences between the bodies. - void calculateTransforms(const btTransform& transA,const btTransform& transB); - void calculateTransforms(); - - // Gets the global transform of the offset for body A - const btTransform & getCalculatedTransformA() const { return m_calculatedTransformA; } - // Gets the global transform of the offset for body B - const btTransform & getCalculatedTransformB() const { return m_calculatedTransformB; } - - const btTransform & getFrameOffsetA() const { return m_frameInA; } - const btTransform & getFrameOffsetB() const { return m_frameInB; } - - btTransform & getFrameOffsetA() { return m_frameInA; } - btTransform & getFrameOffsetB() { return m_frameInB; } - - // Get the rotation axis in global coordinates ( btGeneric6DofSpring2Constraint::calculateTransforms() must be called previously ) - btVector3 getAxis(int axis_index) const { return m_calculatedAxis[axis_index]; } - - // Get the relative Euler angle ( btGeneric6DofSpring2Constraint::calculateTransforms() must be called previously ) - btScalar getAngle(int axis_index) const { return m_calculatedAxisAngleDiff[axis_index]; } - - // Get the relative position of the constraint pivot ( btGeneric6DofSpring2Constraint::calculateTransforms() must be called previously ) - btScalar getRelativePivotPosition(int axis_index) const { return m_calculatedLinearDiff[axis_index]; } - - void setFrames(const btTransform & frameA, const btTransform & frameB); - - void setLinearLowerLimit(const btVector3& linearLower) { m_linearLimits.m_lowerLimit = linearLower; } - void getLinearLowerLimit(btVector3& linearLower) { linearLower = m_linearLimits.m_lowerLimit; } - void setLinearUpperLimit(const btVector3& linearUpper) { m_linearLimits.m_upperLimit = linearUpper; } - void getLinearUpperLimit(btVector3& linearUpper) { linearUpper = m_linearLimits.m_upperLimit; } - - void setAngularLowerLimit(const btVector3& angularLower) - { - for(int i = 0; i < 3; i++) - m_angularLimits[i].m_loLimit = btNormalizeAngle(angularLower[i]); - } - - void setAngularLowerLimitReversed(const btVector3& angularLower) - { - for(int i = 0; i < 3; i++) - m_angularLimits[i].m_hiLimit = btNormalizeAngle(-angularLower[i]); - } - - void getAngularLowerLimit(btVector3& angularLower) - { - for(int i = 0; i < 3; i++) - angularLower[i] = m_angularLimits[i].m_loLimit; - } - - void getAngularLowerLimitReversed(btVector3& angularLower) - { - for(int i = 0; i < 3; i++) - angularLower[i] = -m_angularLimits[i].m_hiLimit; - } - - void setAngularUpperLimit(const btVector3& angularUpper) - { - for(int i = 0; i < 3; i++) - m_angularLimits[i].m_hiLimit = btNormalizeAngle(angularUpper[i]); - } - - void setAngularUpperLimitReversed(const btVector3& angularUpper) - { - for(int i = 0; i < 3; i++) - m_angularLimits[i].m_loLimit = btNormalizeAngle(-angularUpper[i]); - } - - void getAngularUpperLimit(btVector3& angularUpper) - { - for(int i = 0; i < 3; i++) - angularUpper[i] = m_angularLimits[i].m_hiLimit; - } - - void getAngularUpperLimitReversed(btVector3& angularUpper) - { - for(int i = 0; i < 3; i++) - angularUpper[i] = -m_angularLimits[i].m_loLimit; - } - - //first 3 are linear, next 3 are angular - - void setLimit(int axis, btScalar lo, btScalar hi) - { - if(axis<3) - { - m_linearLimits.m_lowerLimit[axis] = lo; - m_linearLimits.m_upperLimit[axis] = hi; - } - else - { - lo = btNormalizeAngle(lo); - hi = btNormalizeAngle(hi); - m_angularLimits[axis-3].m_loLimit = lo; - m_angularLimits[axis-3].m_hiLimit = hi; - } - } - - void setLimitReversed(int axis, btScalar lo, btScalar hi) - { - if(axis<3) - { - m_linearLimits.m_lowerLimit[axis] = lo; - m_linearLimits.m_upperLimit[axis] = hi; - } - else - { - lo = btNormalizeAngle(lo); - hi = btNormalizeAngle(hi); - m_angularLimits[axis-3].m_hiLimit = -lo; - m_angularLimits[axis-3].m_loLimit = -hi; - } - } - - bool isLimited(int limitIndex) - { - if(limitIndex<3) - { - return m_linearLimits.isLimited(limitIndex); - } - return m_angularLimits[limitIndex-3].isLimited(); - } - - void setRotationOrder(RotateOrder order) { m_rotateOrder = order; } - RotateOrder getRotationOrder() { return m_rotateOrder; } - - void setAxis( const btVector3& axis1, const btVector3& axis2); - - void setBounce(int index, btScalar bounce); - - void enableMotor(int index, bool onOff); - void setServo(int index, bool onOff); // set the type of the motor (servo or not) (the motor has to be turned on for servo also) - void setTargetVelocity(int index, btScalar velocity); - void setServoTarget(int index, btScalar target); - void setMaxMotorForce(int index, btScalar force); - - void enableSpring(int index, bool onOff); - void setStiffness(int index, btScalar stiffness, bool limitIfNeeded = true); // if limitIfNeeded is true the system will automatically limit the stiffness in necessary situations where otherwise the spring would move unrealistically too widely - void setDamping(int index, btScalar damping, bool limitIfNeeded = true); // if limitIfNeeded is true the system will automatically limit the damping in necessary situations where otherwise the spring would blow up - void setEquilibriumPoint(); // set the current constraint position/orientation as an equilibrium point for all DOF - void setEquilibriumPoint(int index); // set the current constraint position/orientation as an equilibrium point for given DOF - void setEquilibriumPoint(int index, btScalar val); - - //override the default global value of a parameter (such as ERP or CFM), optionally provide the axis (0..5). - //If no axis is provided, it uses the default axis for this constraint. - virtual void setParam(int num, btScalar value, int axis = -1); - virtual btScalar getParam(int num, int axis = -1) const; - - static btScalar btGetMatrixElem(const btMatrix3x3& mat, int index); - static bool matrixToEulerXYZ(const btMatrix3x3& mat,btVector3& xyz); - static bool matrixToEulerXZY(const btMatrix3x3& mat,btVector3& xyz); - static bool matrixToEulerYXZ(const btMatrix3x3& mat,btVector3& xyz); - static bool matrixToEulerYZX(const btMatrix3x3& mat,btVector3& xyz); - static bool matrixToEulerZXY(const btMatrix3x3& mat,btVector3& xyz); - static bool matrixToEulerZYX(const btMatrix3x3& mat,btVector3& xyz); -}; - - -struct btGeneric6DofSpring2ConstraintData -{ - btTypedConstraintData m_typeConstraintData; - btTransformFloatData m_rbAFrame; - btTransformFloatData m_rbBFrame; - - btVector3FloatData m_linearUpperLimit; - btVector3FloatData m_linearLowerLimit; - btVector3FloatData m_linearBounce; - btVector3FloatData m_linearStopERP; - btVector3FloatData m_linearStopCFM; - btVector3FloatData m_linearMotorERP; - btVector3FloatData m_linearMotorCFM; - btVector3FloatData m_linearTargetVelocity; - btVector3FloatData m_linearMaxMotorForce; - btVector3FloatData m_linearServoTarget; - btVector3FloatData m_linearSpringStiffness; - btVector3FloatData m_linearSpringDamping; - btVector3FloatData m_linearEquilibriumPoint; - char m_linearEnableMotor[4]; - char m_linearServoMotor[4]; - char m_linearEnableSpring[4]; - char m_linearSpringStiffnessLimited[4]; - char m_linearSpringDampingLimited[4]; - char m_padding1[4]; - - btVector3FloatData m_angularUpperLimit; - btVector3FloatData m_angularLowerLimit; - btVector3FloatData m_angularBounce; - btVector3FloatData m_angularStopERP; - btVector3FloatData m_angularStopCFM; - btVector3FloatData m_angularMotorERP; - btVector3FloatData m_angularMotorCFM; - btVector3FloatData m_angularTargetVelocity; - btVector3FloatData m_angularMaxMotorForce; - btVector3FloatData m_angularServoTarget; - btVector3FloatData m_angularSpringStiffness; - btVector3FloatData m_angularSpringDamping; - btVector3FloatData m_angularEquilibriumPoint; - char m_angularEnableMotor[4]; - char m_angularServoMotor[4]; - char m_angularEnableSpring[4]; - char m_angularSpringStiffnessLimited[4]; - char m_angularSpringDampingLimited[4]; - - int m_rotateOrder; -}; - -struct btGeneric6DofSpring2ConstraintDoubleData2 -{ - btTypedConstraintDoubleData m_typeConstraintData; - btTransformDoubleData m_rbAFrame; - btTransformDoubleData m_rbBFrame; - - btVector3DoubleData m_linearUpperLimit; - btVector3DoubleData m_linearLowerLimit; - btVector3DoubleData m_linearBounce; - btVector3DoubleData m_linearStopERP; - btVector3DoubleData m_linearStopCFM; - btVector3DoubleData m_linearMotorERP; - btVector3DoubleData m_linearMotorCFM; - btVector3DoubleData m_linearTargetVelocity; - btVector3DoubleData m_linearMaxMotorForce; - btVector3DoubleData m_linearServoTarget; - btVector3DoubleData m_linearSpringStiffness; - btVector3DoubleData m_linearSpringDamping; - btVector3DoubleData m_linearEquilibriumPoint; - char m_linearEnableMotor[4]; - char m_linearServoMotor[4]; - char m_linearEnableSpring[4]; - char m_linearSpringStiffnessLimited[4]; - char m_linearSpringDampingLimited[4]; - char m_padding1[4]; - - btVector3DoubleData m_angularUpperLimit; - btVector3DoubleData m_angularLowerLimit; - btVector3DoubleData m_angularBounce; - btVector3DoubleData m_angularStopERP; - btVector3DoubleData m_angularStopCFM; - btVector3DoubleData m_angularMotorERP; - btVector3DoubleData m_angularMotorCFM; - btVector3DoubleData m_angularTargetVelocity; - btVector3DoubleData m_angularMaxMotorForce; - btVector3DoubleData m_angularServoTarget; - btVector3DoubleData m_angularSpringStiffness; - btVector3DoubleData m_angularSpringDamping; - btVector3DoubleData m_angularEquilibriumPoint; - char m_angularEnableMotor[4]; - char m_angularServoMotor[4]; - char m_angularEnableSpring[4]; - char m_angularSpringStiffnessLimited[4]; - char m_angularSpringDampingLimited[4]; - - int m_rotateOrder; -}; - -SIMD_FORCE_INLINE int btGeneric6DofSpring2Constraint::calculateSerializeBufferSize() const -{ - return sizeof(btGeneric6DofSpring2ConstraintData2); -} - -SIMD_FORCE_INLINE const char* btGeneric6DofSpring2Constraint::serialize(void* dataBuffer, btSerializer* serializer) const -{ - btGeneric6DofSpring2ConstraintData2* dof = (btGeneric6DofSpring2ConstraintData2*)dataBuffer; - btTypedConstraint::serialize(&dof->m_typeConstraintData,serializer); - - m_frameInA.serialize(dof->m_rbAFrame); - m_frameInB.serialize(dof->m_rbBFrame); - - int i; - for (i=0;i<3;i++) - { - dof->m_angularLowerLimit.m_floats[i] = m_angularLimits[i].m_loLimit; - dof->m_angularUpperLimit.m_floats[i] = m_angularLimits[i].m_hiLimit; - dof->m_angularBounce.m_floats[i] = m_angularLimits[i].m_bounce; - dof->m_angularStopERP.m_floats[i] = m_angularLimits[i].m_stopERP; - dof->m_angularStopCFM.m_floats[i] = m_angularLimits[i].m_stopCFM; - dof->m_angularMotorERP.m_floats[i] = m_angularLimits[i].m_motorERP; - dof->m_angularMotorCFM.m_floats[i] = m_angularLimits[i].m_motorCFM; - dof->m_angularTargetVelocity.m_floats[i] = m_angularLimits[i].m_targetVelocity; - dof->m_angularMaxMotorForce.m_floats[i] = m_angularLimits[i].m_maxMotorForce; - dof->m_angularServoTarget.m_floats[i] = m_angularLimits[i].m_servoTarget; - dof->m_angularSpringStiffness.m_floats[i] = m_angularLimits[i].m_springStiffness; - dof->m_angularSpringDamping.m_floats[i] = m_angularLimits[i].m_springDamping; - dof->m_angularEquilibriumPoint.m_floats[i] = m_angularLimits[i].m_equilibriumPoint; - } - dof->m_angularLowerLimit.m_floats[3] = 0; - dof->m_angularUpperLimit.m_floats[3] = 0; - dof->m_angularBounce.m_floats[3] = 0; - dof->m_angularStopERP.m_floats[3] = 0; - dof->m_angularStopCFM.m_floats[3] = 0; - dof->m_angularMotorERP.m_floats[3] = 0; - dof->m_angularMotorCFM.m_floats[3] = 0; - dof->m_angularTargetVelocity.m_floats[3] = 0; - dof->m_angularMaxMotorForce.m_floats[3] = 0; - dof->m_angularServoTarget.m_floats[3] = 0; - dof->m_angularSpringStiffness.m_floats[3] = 0; - dof->m_angularSpringDamping.m_floats[3] = 0; - dof->m_angularEquilibriumPoint.m_floats[3] = 0; - for (i=0;i<4;i++) - { - dof->m_angularEnableMotor[i] = i < 3 ? ( m_angularLimits[i].m_enableMotor ? 1 : 0 ) : 0; - dof->m_angularServoMotor[i] = i < 3 ? ( m_angularLimits[i].m_servoMotor ? 1 : 0 ) : 0; - dof->m_angularEnableSpring[i] = i < 3 ? ( m_angularLimits[i].m_enableSpring ? 1 : 0 ) : 0; - dof->m_angularSpringStiffnessLimited[i] = i < 3 ? ( m_angularLimits[i].m_springStiffnessLimited ? 1 : 0 ) : 0; - dof->m_angularSpringDampingLimited[i] = i < 3 ? ( m_angularLimits[i].m_springDampingLimited ? 1 : 0 ) : 0; - } - - m_linearLimits.m_lowerLimit.serialize( dof->m_linearLowerLimit ); - m_linearLimits.m_upperLimit.serialize( dof->m_linearUpperLimit ); - m_linearLimits.m_bounce.serialize( dof->m_linearBounce ); - m_linearLimits.m_stopERP.serialize( dof->m_linearStopERP ); - m_linearLimits.m_stopCFM.serialize( dof->m_linearStopCFM ); - m_linearLimits.m_motorERP.serialize( dof->m_linearMotorERP ); - m_linearLimits.m_motorCFM.serialize( dof->m_linearMotorCFM ); - m_linearLimits.m_targetVelocity.serialize( dof->m_linearTargetVelocity ); - m_linearLimits.m_maxMotorForce.serialize( dof->m_linearMaxMotorForce ); - m_linearLimits.m_servoTarget.serialize( dof->m_linearServoTarget ); - m_linearLimits.m_springStiffness.serialize( dof->m_linearSpringStiffness ); - m_linearLimits.m_springDamping.serialize( dof->m_linearSpringDamping ); - m_linearLimits.m_equilibriumPoint.serialize( dof->m_linearEquilibriumPoint ); - for (i=0;i<4;i++) - { - dof->m_linearEnableMotor[i] = i < 3 ? ( m_linearLimits.m_enableMotor[i] ? 1 : 0 ) : 0; - dof->m_linearServoMotor[i] = i < 3 ? ( m_linearLimits.m_servoMotor[i] ? 1 : 0 ) : 0; - dof->m_linearEnableSpring[i] = i < 3 ? ( m_linearLimits.m_enableSpring[i] ? 1 : 0 ) : 0; - dof->m_linearSpringStiffnessLimited[i] = i < 3 ? ( m_linearLimits.m_springStiffnessLimited[i] ? 1 : 0 ) : 0; - dof->m_linearSpringDampingLimited[i] = i < 3 ? ( m_linearLimits.m_springDampingLimited[i] ? 1 : 0 ) : 0; - } - - dof->m_rotateOrder = m_rotateOrder; - - dof->m_padding1[0] = 0; - dof->m_padding1[1] = 0; - dof->m_padding1[2] = 0; - dof->m_padding1[3] = 0; - - return btGeneric6DofSpring2ConstraintDataName; -} - - - - - -#endif //BT_GENERIC_6DOF_CONSTRAINT_H diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGeneric6DofSpringConstraint.cpp b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGeneric6DofSpringConstraint.cpp deleted file mode 100644 index 6f765884ec..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGeneric6DofSpringConstraint.cpp +++ /dev/null @@ -1,185 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library, http://bulletphysics.org -Copyright (C) 2006, 2007 Sony Computer Entertainment Inc. - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#include "btGeneric6DofSpringConstraint.h" -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include "LinearMath/btTransformUtil.h" - - -btGeneric6DofSpringConstraint::btGeneric6DofSpringConstraint(btRigidBody& rbA, btRigidBody& rbB, const btTransform& frameInA, const btTransform& frameInB ,bool useLinearReferenceFrameA) - : btGeneric6DofConstraint(rbA, rbB, frameInA, frameInB, useLinearReferenceFrameA) -{ - init(); -} - - -btGeneric6DofSpringConstraint::btGeneric6DofSpringConstraint(btRigidBody& rbB, const btTransform& frameInB, bool useLinearReferenceFrameB) - : btGeneric6DofConstraint(rbB, frameInB, useLinearReferenceFrameB) -{ - init(); -} - - -void btGeneric6DofSpringConstraint::init() -{ - m_objectType = D6_SPRING_CONSTRAINT_TYPE; - - for(int i = 0; i < 6; i++) - { - m_springEnabled[i] = false; - m_equilibriumPoint[i] = btScalar(0.f); - m_springStiffness[i] = btScalar(0.f); - m_springDamping[i] = btScalar(1.f); - } -} - - -void btGeneric6DofSpringConstraint::enableSpring(int index, bool onOff) -{ - btAssert((index >= 0) && (index < 6)); - m_springEnabled[index] = onOff; - if(index < 3) - { - m_linearLimits.m_enableMotor[index] = onOff; - } - else - { - m_angularLimits[index - 3].m_enableMotor = onOff; - } -} - - - -void btGeneric6DofSpringConstraint::setStiffness(int index, btScalar stiffness) -{ - btAssert((index >= 0) && (index < 6)); - m_springStiffness[index] = stiffness; -} - - -void btGeneric6DofSpringConstraint::setDamping(int index, btScalar damping) -{ - btAssert((index >= 0) && (index < 6)); - m_springDamping[index] = damping; -} - - -void btGeneric6DofSpringConstraint::setEquilibriumPoint() -{ - calculateTransforms(); - int i; - - for( i = 0; i < 3; i++) - { - m_equilibriumPoint[i] = m_calculatedLinearDiff[i]; - } - for(i = 0; i < 3; i++) - { - m_equilibriumPoint[i + 3] = m_calculatedAxisAngleDiff[i]; - } -} - - - -void btGeneric6DofSpringConstraint::setEquilibriumPoint(int index) -{ - btAssert((index >= 0) && (index < 6)); - calculateTransforms(); - if(index < 3) - { - m_equilibriumPoint[index] = m_calculatedLinearDiff[index]; - } - else - { - m_equilibriumPoint[index] = m_calculatedAxisAngleDiff[index - 3]; - } -} - -void btGeneric6DofSpringConstraint::setEquilibriumPoint(int index, btScalar val) -{ - btAssert((index >= 0) && (index < 6)); - m_equilibriumPoint[index] = val; -} - - -void btGeneric6DofSpringConstraint::internalUpdateSprings(btConstraintInfo2* info) -{ - // it is assumed that calculateTransforms() have been called before this call - int i; - //btVector3 relVel = m_rbB.getLinearVelocity() - m_rbA.getLinearVelocity(); - for(i = 0; i < 3; i++) - { - if(m_springEnabled[i]) - { - // get current position of constraint - btScalar currPos = m_calculatedLinearDiff[i]; - // calculate difference - btScalar delta = currPos - m_equilibriumPoint[i]; - // spring force is (delta * m_stiffness) according to Hooke's Law - btScalar force = delta * m_springStiffness[i]; - btScalar velFactor = info->fps * m_springDamping[i] / btScalar(info->m_numIterations); - m_linearLimits.m_targetVelocity[i] = velFactor * force; - m_linearLimits.m_maxMotorForce[i] = btFabs(force) / info->fps; - } - } - for(i = 0; i < 3; i++) - { - if(m_springEnabled[i + 3]) - { - // get current position of constraint - btScalar currPos = m_calculatedAxisAngleDiff[i]; - // calculate difference - btScalar delta = currPos - m_equilibriumPoint[i+3]; - // spring force is (-delta * m_stiffness) according to Hooke's Law - btScalar force = -delta * m_springStiffness[i+3]; - btScalar velFactor = info->fps * m_springDamping[i+3] / btScalar(info->m_numIterations); - m_angularLimits[i].m_targetVelocity = velFactor * force; - m_angularLimits[i].m_maxMotorForce = btFabs(force) / info->fps; - } - } -} - - -void btGeneric6DofSpringConstraint::getInfo2(btConstraintInfo2* info) -{ - // this will be called by constraint solver at the constraint setup stage - // set current motor parameters - internalUpdateSprings(info); - // do the rest of job for constraint setup - btGeneric6DofConstraint::getInfo2(info); -} - - -void btGeneric6DofSpringConstraint::setAxis(const btVector3& axis1,const btVector3& axis2) -{ - btVector3 zAxis = axis1.normalized(); - btVector3 yAxis = axis2.normalized(); - btVector3 xAxis = yAxis.cross(zAxis); // we want right coordinate system - - btTransform frameInW; - frameInW.setIdentity(); - frameInW.getBasis().setValue( xAxis[0], yAxis[0], zAxis[0], - xAxis[1], yAxis[1], zAxis[1], - xAxis[2], yAxis[2], zAxis[2]); - - // now get constraint frame in local coordinate systems - m_frameInA = m_rbA.getCenterOfMassTransform().inverse() * frameInW; - m_frameInB = m_rbB.getCenterOfMassTransform().inverse() * frameInW; - - calculateTransforms(); -} - - - diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGeneric6DofSpringConstraint.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGeneric6DofSpringConstraint.h deleted file mode 100644 index dac59c6889..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btGeneric6DofSpringConstraint.h +++ /dev/null @@ -1,141 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library, http://bulletphysics.org -Copyright (C) 2006, 2007 Sony Computer Entertainment Inc. - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_GENERIC_6DOF_SPRING_CONSTRAINT_H -#define BT_GENERIC_6DOF_SPRING_CONSTRAINT_H - - -#include "LinearMath/btVector3.h" -#include "btTypedConstraint.h" -#include "btGeneric6DofConstraint.h" - -#ifdef BT_USE_DOUBLE_PRECISION -#define btGeneric6DofSpringConstraintData2 btGeneric6DofSpringConstraintDoubleData2 -#define btGeneric6DofSpringConstraintDataName "btGeneric6DofSpringConstraintDoubleData2" -#else -#define btGeneric6DofSpringConstraintData2 btGeneric6DofSpringConstraintData -#define btGeneric6DofSpringConstraintDataName "btGeneric6DofSpringConstraintData" -#endif //BT_USE_DOUBLE_PRECISION - - - -/// Generic 6 DOF constraint that allows to set spring motors to any translational and rotational DOF - -/// DOF index used in enableSpring() and setStiffness() means: -/// 0 : translation X -/// 1 : translation Y -/// 2 : translation Z -/// 3 : rotation X (3rd Euler rotational around new position of X axis, range [-PI+epsilon, PI-epsilon] ) -/// 4 : rotation Y (2nd Euler rotational around new position of Y axis, range [-PI/2+epsilon, PI/2-epsilon] ) -/// 5 : rotation Z (1st Euler rotational around Z axis, range [-PI+epsilon, PI-epsilon] ) - -ATTRIBUTE_ALIGNED16(class) btGeneric6DofSpringConstraint : public btGeneric6DofConstraint -{ -protected: - bool m_springEnabled[6]; - btScalar m_equilibriumPoint[6]; - btScalar m_springStiffness[6]; - btScalar m_springDamping[6]; // between 0 and 1 (1 == no damping) - void init(); - void internalUpdateSprings(btConstraintInfo2* info); -public: - - BT_DECLARE_ALIGNED_ALLOCATOR(); - - btGeneric6DofSpringConstraint(btRigidBody& rbA, btRigidBody& rbB, const btTransform& frameInA, const btTransform& frameInB ,bool useLinearReferenceFrameA); - btGeneric6DofSpringConstraint(btRigidBody& rbB, const btTransform& frameInB, bool useLinearReferenceFrameB); - void enableSpring(int index, bool onOff); - void setStiffness(int index, btScalar stiffness); - void setDamping(int index, btScalar damping); - void setEquilibriumPoint(); // set the current constraint position/orientation as an equilibrium point for all DOF - void setEquilibriumPoint(int index); // set the current constraint position/orientation as an equilibrium point for given DOF - void setEquilibriumPoint(int index, btScalar val); - - bool isSpringEnabled(int index) const - { - return m_springEnabled[index]; - } - - btScalar getStiffness(int index) const - { - return m_springStiffness[index]; - } - - btScalar getDamping(int index) const - { - return m_springDamping[index]; - } - - btScalar getEquilibriumPoint(int index) const - { - return m_equilibriumPoint[index]; - } - - virtual void setAxis( const btVector3& axis1, const btVector3& axis2); - - virtual void getInfo2 (btConstraintInfo2* info); - - virtual int calculateSerializeBufferSize() const; - ///fills the dataBuffer and returns the struct name (and 0 on failure) - virtual const char* serialize(void* dataBuffer, btSerializer* serializer) const; - -}; - - -struct btGeneric6DofSpringConstraintData -{ - btGeneric6DofConstraintData m_6dofData; - - int m_springEnabled[6]; - float m_equilibriumPoint[6]; - float m_springStiffness[6]; - float m_springDamping[6]; -}; - -struct btGeneric6DofSpringConstraintDoubleData2 -{ - btGeneric6DofConstraintDoubleData2 m_6dofData; - - int m_springEnabled[6]; - double m_equilibriumPoint[6]; - double m_springStiffness[6]; - double m_springDamping[6]; -}; - - -SIMD_FORCE_INLINE int btGeneric6DofSpringConstraint::calculateSerializeBufferSize() const -{ - return sizeof(btGeneric6DofSpringConstraintData2); -} - - ///fills the dataBuffer and returns the struct name (and 0 on failure) -SIMD_FORCE_INLINE const char* btGeneric6DofSpringConstraint::serialize(void* dataBuffer, btSerializer* serializer) const -{ - btGeneric6DofSpringConstraintData2* dof = (btGeneric6DofSpringConstraintData2*)dataBuffer; - btGeneric6DofConstraint::serialize(&dof->m_6dofData,serializer); - - int i; - for (i=0;i<6;i++) - { - dof->m_equilibriumPoint[i] = m_equilibriumPoint[i]; - dof->m_springDamping[i] = m_springDamping[i]; - dof->m_springEnabled[i] = m_springEnabled[i]? 1 : 0; - dof->m_springStiffness[i] = m_springStiffness[i]; - } - return btGeneric6DofSpringConstraintDataName; -} - -#endif // BT_GENERIC_6DOF_SPRING_CONSTRAINT_H - diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btHinge2Constraint.cpp b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btHinge2Constraint.cpp deleted file mode 100644 index 4be2aabe4d..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btHinge2Constraint.cpp +++ /dev/null @@ -1,66 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library, http://bulletphysics.org -Copyright (C) 2006, 2007 Sony Computer Entertainment Inc. - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - - - -#include "btHinge2Constraint.h" -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include "LinearMath/btTransformUtil.h" - - - -// constructor -// anchor, axis1 and axis2 are in world coordinate system -// axis1 must be orthogonal to axis2 -btHinge2Constraint::btHinge2Constraint(btRigidBody& rbA, btRigidBody& rbB, btVector3& anchor, btVector3& axis1, btVector3& axis2) -: btGeneric6DofSpring2Constraint(rbA, rbB, btTransform::getIdentity(), btTransform::getIdentity(),RO_XYZ), - m_anchor(anchor), - m_axis1(axis1), - m_axis2(axis2) -{ - // build frame basis - // 6DOF constraint uses Euler angles and to define limits - // it is assumed that rotational order is : - // Z - first, allowed limits are (-PI,PI); - // new position of Y - second (allowed limits are (-PI/2 + epsilon, PI/2 - epsilon), where epsilon is a small positive number - // used to prevent constraint from instability on poles; - // new position of X, allowed limits are (-PI,PI); - // So to simulate ODE Universal joint we should use parent axis as Z, child axis as Y and limit all other DOFs - // Build the frame in world coordinate system first - btVector3 zAxis = axis1.normalize(); - btVector3 xAxis = axis2.normalize(); - btVector3 yAxis = zAxis.cross(xAxis); // we want right coordinate system - btTransform frameInW; - frameInW.setIdentity(); - frameInW.getBasis().setValue( xAxis[0], yAxis[0], zAxis[0], - xAxis[1], yAxis[1], zAxis[1], - xAxis[2], yAxis[2], zAxis[2]); - frameInW.setOrigin(anchor); - // now get constraint frame in local coordinate systems - m_frameInA = rbA.getCenterOfMassTransform().inverse() * frameInW; - m_frameInB = rbB.getCenterOfMassTransform().inverse() * frameInW; - // sei limits - setLinearLowerLimit(btVector3(0.f, 0.f, -1.f)); - setLinearUpperLimit(btVector3(0.f, 0.f, 1.f)); - // like front wheels of a car - setAngularLowerLimit(btVector3(1.f, 0.f, -SIMD_HALF_PI * 0.5f)); - setAngularUpperLimit(btVector3(-1.f, 0.f, SIMD_HALF_PI * 0.5f)); - // enable suspension - enableSpring(2, true); - setStiffness(2, SIMD_PI * SIMD_PI * 4.f); - setDamping(2, 0.01f); - setEquilibriumPoint(); -} - diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btHinge2Constraint.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btHinge2Constraint.h deleted file mode 100644 index 06a8e3ecd1..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btHinge2Constraint.h +++ /dev/null @@ -1,60 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library, http://bulletphysics.org -Copyright (C) 2006, 2007 Sony Computer Entertainment Inc. - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_HINGE2_CONSTRAINT_H -#define BT_HINGE2_CONSTRAINT_H - - - -#include "LinearMath/btVector3.h" -#include "btTypedConstraint.h" -#include "btGeneric6DofSpring2Constraint.h" - - - -// Constraint similar to ODE Hinge2 Joint -// has 3 degrees of frredom: -// 2 rotational degrees of freedom, similar to Euler rotations around Z (axis 1) and X (axis 2) -// 1 translational (along axis Z) with suspension spring - -ATTRIBUTE_ALIGNED16(class) btHinge2Constraint : public btGeneric6DofSpring2Constraint -{ -protected: - btVector3 m_anchor; - btVector3 m_axis1; - btVector3 m_axis2; -public: - BT_DECLARE_ALIGNED_ALLOCATOR(); - - // constructor - // anchor, axis1 and axis2 are in world coordinate system - // axis1 must be orthogonal to axis2 - btHinge2Constraint(btRigidBody& rbA, btRigidBody& rbB, btVector3& anchor, btVector3& axis1, btVector3& axis2); - // access - const btVector3& getAnchor() { return m_calculatedTransformA.getOrigin(); } - const btVector3& getAnchor2() { return m_calculatedTransformB.getOrigin(); } - const btVector3& getAxis1() { return m_axis1; } - const btVector3& getAxis2() { return m_axis2; } - btScalar getAngle1() { return getAngle(2); } - btScalar getAngle2() { return getAngle(0); } - // limits - void setUpperLimit(btScalar ang1max) { setAngularUpperLimit(btVector3(-1.f, 0.f, ang1max)); } - void setLowerLimit(btScalar ang1min) { setAngularLowerLimit(btVector3( 1.f, 0.f, ang1min)); } -}; - - - -#endif // BT_HINGE2_CONSTRAINT_H - diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btHingeConstraint.cpp b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btHingeConstraint.cpp deleted file mode 100644 index 7e5e6f9e54..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btHingeConstraint.cpp +++ /dev/null @@ -1,1120 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - - -#include "btHingeConstraint.h" -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include "LinearMath/btTransformUtil.h" -#include "LinearMath/btMinMax.h" -#include <new> -#include "btSolverBody.h" - - - -//#define HINGE_USE_OBSOLETE_SOLVER false -#define HINGE_USE_OBSOLETE_SOLVER false - -#define HINGE_USE_FRAME_OFFSET true - -#ifndef __SPU__ - - - - - -btHingeConstraint::btHingeConstraint(btRigidBody& rbA,btRigidBody& rbB, const btVector3& pivotInA,const btVector3& pivotInB, - const btVector3& axisInA,const btVector3& axisInB, bool useReferenceFrameA) - :btTypedConstraint(HINGE_CONSTRAINT_TYPE, rbA,rbB), -#ifdef _BT_USE_CENTER_LIMIT_ - m_limit(), -#endif - m_angularOnly(false), - m_enableAngularMotor(false), - m_useSolveConstraintObsolete(HINGE_USE_OBSOLETE_SOLVER), - m_useOffsetForConstraintFrame(HINGE_USE_FRAME_OFFSET), - m_useReferenceFrameA(useReferenceFrameA), - m_flags(0), - m_normalCFM(0), - m_normalERP(0), - m_stopCFM(0), - m_stopERP(0) -{ - m_rbAFrame.getOrigin() = pivotInA; - - // since no frame is given, assume this to be zero angle and just pick rb transform axis - btVector3 rbAxisA1 = rbA.getCenterOfMassTransform().getBasis().getColumn(0); - - btVector3 rbAxisA2; - btScalar projection = axisInA.dot(rbAxisA1); - if (projection >= 1.0f - SIMD_EPSILON) { - rbAxisA1 = -rbA.getCenterOfMassTransform().getBasis().getColumn(2); - rbAxisA2 = rbA.getCenterOfMassTransform().getBasis().getColumn(1); - } else if (projection <= -1.0f + SIMD_EPSILON) { - rbAxisA1 = rbA.getCenterOfMassTransform().getBasis().getColumn(2); - rbAxisA2 = rbA.getCenterOfMassTransform().getBasis().getColumn(1); - } else { - rbAxisA2 = axisInA.cross(rbAxisA1); - rbAxisA1 = rbAxisA2.cross(axisInA); - } - - m_rbAFrame.getBasis().setValue( rbAxisA1.getX(),rbAxisA2.getX(),axisInA.getX(), - rbAxisA1.getY(),rbAxisA2.getY(),axisInA.getY(), - rbAxisA1.getZ(),rbAxisA2.getZ(),axisInA.getZ() ); - - btQuaternion rotationArc = shortestArcQuat(axisInA,axisInB); - btVector3 rbAxisB1 = quatRotate(rotationArc,rbAxisA1); - btVector3 rbAxisB2 = axisInB.cross(rbAxisB1); - - m_rbBFrame.getOrigin() = pivotInB; - m_rbBFrame.getBasis().setValue( rbAxisB1.getX(),rbAxisB2.getX(),axisInB.getX(), - rbAxisB1.getY(),rbAxisB2.getY(),axisInB.getY(), - rbAxisB1.getZ(),rbAxisB2.getZ(),axisInB.getZ() ); - -#ifndef _BT_USE_CENTER_LIMIT_ - //start with free - m_lowerLimit = btScalar(1.0f); - m_upperLimit = btScalar(-1.0f); - m_biasFactor = 0.3f; - m_relaxationFactor = 1.0f; - m_limitSoftness = 0.9f; - m_solveLimit = false; -#endif - m_referenceSign = m_useReferenceFrameA ? btScalar(-1.f) : btScalar(1.f); -} - - - -btHingeConstraint::btHingeConstraint(btRigidBody& rbA,const btVector3& pivotInA,const btVector3& axisInA, bool useReferenceFrameA) -:btTypedConstraint(HINGE_CONSTRAINT_TYPE, rbA), -#ifdef _BT_USE_CENTER_LIMIT_ -m_limit(), -#endif -m_angularOnly(false), m_enableAngularMotor(false), -m_useSolveConstraintObsolete(HINGE_USE_OBSOLETE_SOLVER), -m_useOffsetForConstraintFrame(HINGE_USE_FRAME_OFFSET), -m_useReferenceFrameA(useReferenceFrameA), -m_flags(0), -m_normalCFM(0), -m_normalERP(0), -m_stopCFM(0), -m_stopERP(0) -{ - - // since no frame is given, assume this to be zero angle and just pick rb transform axis - // fixed axis in worldspace - btVector3 rbAxisA1, rbAxisA2; - btPlaneSpace1(axisInA, rbAxisA1, rbAxisA2); - - m_rbAFrame.getOrigin() = pivotInA; - m_rbAFrame.getBasis().setValue( rbAxisA1.getX(),rbAxisA2.getX(),axisInA.getX(), - rbAxisA1.getY(),rbAxisA2.getY(),axisInA.getY(), - rbAxisA1.getZ(),rbAxisA2.getZ(),axisInA.getZ() ); - - btVector3 axisInB = rbA.getCenterOfMassTransform().getBasis() * axisInA; - - btQuaternion rotationArc = shortestArcQuat(axisInA,axisInB); - btVector3 rbAxisB1 = quatRotate(rotationArc,rbAxisA1); - btVector3 rbAxisB2 = axisInB.cross(rbAxisB1); - - - m_rbBFrame.getOrigin() = rbA.getCenterOfMassTransform()(pivotInA); - m_rbBFrame.getBasis().setValue( rbAxisB1.getX(),rbAxisB2.getX(),axisInB.getX(), - rbAxisB1.getY(),rbAxisB2.getY(),axisInB.getY(), - rbAxisB1.getZ(),rbAxisB2.getZ(),axisInB.getZ() ); - -#ifndef _BT_USE_CENTER_LIMIT_ - //start with free - m_lowerLimit = btScalar(1.0f); - m_upperLimit = btScalar(-1.0f); - m_biasFactor = 0.3f; - m_relaxationFactor = 1.0f; - m_limitSoftness = 0.9f; - m_solveLimit = false; -#endif - m_referenceSign = m_useReferenceFrameA ? btScalar(-1.f) : btScalar(1.f); -} - - - -btHingeConstraint::btHingeConstraint(btRigidBody& rbA,btRigidBody& rbB, - const btTransform& rbAFrame, const btTransform& rbBFrame, bool useReferenceFrameA) -:btTypedConstraint(HINGE_CONSTRAINT_TYPE, rbA,rbB),m_rbAFrame(rbAFrame),m_rbBFrame(rbBFrame), -#ifdef _BT_USE_CENTER_LIMIT_ -m_limit(), -#endif -m_angularOnly(false), -m_enableAngularMotor(false), -m_useSolveConstraintObsolete(HINGE_USE_OBSOLETE_SOLVER), -m_useOffsetForConstraintFrame(HINGE_USE_FRAME_OFFSET), -m_useReferenceFrameA(useReferenceFrameA), -m_flags(0), -m_normalCFM(0), -m_normalERP(0), -m_stopCFM(0), -m_stopERP(0) -{ -#ifndef _BT_USE_CENTER_LIMIT_ - //start with free - m_lowerLimit = btScalar(1.0f); - m_upperLimit = btScalar(-1.0f); - m_biasFactor = 0.3f; - m_relaxationFactor = 1.0f; - m_limitSoftness = 0.9f; - m_solveLimit = false; -#endif - m_referenceSign = m_useReferenceFrameA ? btScalar(-1.f) : btScalar(1.f); -} - - - -btHingeConstraint::btHingeConstraint(btRigidBody& rbA, const btTransform& rbAFrame, bool useReferenceFrameA) -:btTypedConstraint(HINGE_CONSTRAINT_TYPE, rbA),m_rbAFrame(rbAFrame),m_rbBFrame(rbAFrame), -#ifdef _BT_USE_CENTER_LIMIT_ -m_limit(), -#endif -m_angularOnly(false), -m_enableAngularMotor(false), -m_useSolveConstraintObsolete(HINGE_USE_OBSOLETE_SOLVER), -m_useOffsetForConstraintFrame(HINGE_USE_FRAME_OFFSET), -m_useReferenceFrameA(useReferenceFrameA), -m_flags(0), -m_normalCFM(0), -m_normalERP(0), -m_stopCFM(0), -m_stopERP(0) -{ - ///not providing rigidbody B means implicitly using worldspace for body B - - m_rbBFrame.getOrigin() = m_rbA.getCenterOfMassTransform()(m_rbAFrame.getOrigin()); -#ifndef _BT_USE_CENTER_LIMIT_ - //start with free - m_lowerLimit = btScalar(1.0f); - m_upperLimit = btScalar(-1.0f); - m_biasFactor = 0.3f; - m_relaxationFactor = 1.0f; - m_limitSoftness = 0.9f; - m_solveLimit = false; -#endif - m_referenceSign = m_useReferenceFrameA ? btScalar(-1.f) : btScalar(1.f); -} - - - -void btHingeConstraint::buildJacobian() -{ - if (m_useSolveConstraintObsolete) - { - m_appliedImpulse = btScalar(0.); - m_accMotorImpulse = btScalar(0.); - - if (!m_angularOnly) - { - btVector3 pivotAInW = m_rbA.getCenterOfMassTransform()*m_rbAFrame.getOrigin(); - btVector3 pivotBInW = m_rbB.getCenterOfMassTransform()*m_rbBFrame.getOrigin(); - btVector3 relPos = pivotBInW - pivotAInW; - - btVector3 normal[3]; - if (relPos.length2() > SIMD_EPSILON) - { - normal[0] = relPos.normalized(); - } - else - { - normal[0].setValue(btScalar(1.0),0,0); - } - - btPlaneSpace1(normal[0], normal[1], normal[2]); - - for (int i=0;i<3;i++) - { - new (&m_jac[i]) btJacobianEntry( - m_rbA.getCenterOfMassTransform().getBasis().transpose(), - m_rbB.getCenterOfMassTransform().getBasis().transpose(), - pivotAInW - m_rbA.getCenterOfMassPosition(), - pivotBInW - m_rbB.getCenterOfMassPosition(), - normal[i], - m_rbA.getInvInertiaDiagLocal(), - m_rbA.getInvMass(), - m_rbB.getInvInertiaDiagLocal(), - m_rbB.getInvMass()); - } - } - - //calculate two perpendicular jointAxis, orthogonal to hingeAxis - //these two jointAxis require equal angular velocities for both bodies - - //this is unused for now, it's a todo - btVector3 jointAxis0local; - btVector3 jointAxis1local; - - btPlaneSpace1(m_rbAFrame.getBasis().getColumn(2),jointAxis0local,jointAxis1local); - - btVector3 jointAxis0 = getRigidBodyA().getCenterOfMassTransform().getBasis() * jointAxis0local; - btVector3 jointAxis1 = getRigidBodyA().getCenterOfMassTransform().getBasis() * jointAxis1local; - btVector3 hingeAxisWorld = getRigidBodyA().getCenterOfMassTransform().getBasis() * m_rbAFrame.getBasis().getColumn(2); - - new (&m_jacAng[0]) btJacobianEntry(jointAxis0, - m_rbA.getCenterOfMassTransform().getBasis().transpose(), - m_rbB.getCenterOfMassTransform().getBasis().transpose(), - m_rbA.getInvInertiaDiagLocal(), - m_rbB.getInvInertiaDiagLocal()); - - new (&m_jacAng[1]) btJacobianEntry(jointAxis1, - m_rbA.getCenterOfMassTransform().getBasis().transpose(), - m_rbB.getCenterOfMassTransform().getBasis().transpose(), - m_rbA.getInvInertiaDiagLocal(), - m_rbB.getInvInertiaDiagLocal()); - - new (&m_jacAng[2]) btJacobianEntry(hingeAxisWorld, - m_rbA.getCenterOfMassTransform().getBasis().transpose(), - m_rbB.getCenterOfMassTransform().getBasis().transpose(), - m_rbA.getInvInertiaDiagLocal(), - m_rbB.getInvInertiaDiagLocal()); - - // clear accumulator - m_accLimitImpulse = btScalar(0.); - - // test angular limit - testLimit(m_rbA.getCenterOfMassTransform(),m_rbB.getCenterOfMassTransform()); - - //Compute K = J*W*J' for hinge axis - btVector3 axisA = getRigidBodyA().getCenterOfMassTransform().getBasis() * m_rbAFrame.getBasis().getColumn(2); - m_kHinge = 1.0f / (getRigidBodyA().computeAngularImpulseDenominator(axisA) + - getRigidBodyB().computeAngularImpulseDenominator(axisA)); - - } -} - - -#endif //__SPU__ - - -static inline btScalar btNormalizeAnglePositive(btScalar angle) -{ - return btFmod(btFmod(angle, btScalar(2.0*SIMD_PI)) + btScalar(2.0*SIMD_PI), btScalar(2.0*SIMD_PI)); -} - - - -static btScalar btShortestAngularDistance(btScalar accAngle, btScalar curAngle) -{ - btScalar result = btNormalizeAngle(btNormalizeAnglePositive(btNormalizeAnglePositive(curAngle) - - btNormalizeAnglePositive(accAngle))); - return result; -} - -static btScalar btShortestAngleUpdate(btScalar accAngle, btScalar curAngle) -{ - btScalar tol(0.3); - btScalar result = btShortestAngularDistance(accAngle, curAngle); - - if (btFabs(result) > tol) - return curAngle; - else - return accAngle + result; - - return curAngle; -} - - -btScalar btHingeAccumulatedAngleConstraint::getAccumulatedHingeAngle() -{ - btScalar hingeAngle = getHingeAngle(); - m_accumulatedAngle = btShortestAngleUpdate(m_accumulatedAngle,hingeAngle); - return m_accumulatedAngle; -} -void btHingeAccumulatedAngleConstraint::setAccumulatedHingeAngle(btScalar accAngle) -{ - m_accumulatedAngle = accAngle; -} - -void btHingeAccumulatedAngleConstraint::getInfo1(btConstraintInfo1* info) -{ - //update m_accumulatedAngle - btScalar curHingeAngle = getHingeAngle(); - m_accumulatedAngle = btShortestAngleUpdate(m_accumulatedAngle,curHingeAngle); - - btHingeConstraint::getInfo1(info); - -} - - -void btHingeConstraint::getInfo1(btConstraintInfo1* info) -{ - - - if (m_useSolveConstraintObsolete) - { - info->m_numConstraintRows = 0; - info->nub = 0; - } - else - { - info->m_numConstraintRows = 5; // Fixed 3 linear + 2 angular - info->nub = 1; - //always add the row, to avoid computation (data is not available yet) - //prepare constraint - testLimit(m_rbA.getCenterOfMassTransform(),m_rbB.getCenterOfMassTransform()); - if(getSolveLimit() || getEnableAngularMotor()) - { - info->m_numConstraintRows++; // limit 3rd anguar as well - info->nub--; - } - - } -} - -void btHingeConstraint::getInfo1NonVirtual(btConstraintInfo1* info) -{ - if (m_useSolveConstraintObsolete) - { - info->m_numConstraintRows = 0; - info->nub = 0; - } - else - { - //always add the 'limit' row, to avoid computation (data is not available yet) - info->m_numConstraintRows = 6; // Fixed 3 linear + 2 angular - info->nub = 0; - } -} - -void btHingeConstraint::getInfo2 (btConstraintInfo2* info) -{ - if(m_useOffsetForConstraintFrame) - { - getInfo2InternalUsingFrameOffset(info, m_rbA.getCenterOfMassTransform(),m_rbB.getCenterOfMassTransform(),m_rbA.getAngularVelocity(),m_rbB.getAngularVelocity()); - } - else - { - getInfo2Internal(info, m_rbA.getCenterOfMassTransform(),m_rbB.getCenterOfMassTransform(),m_rbA.getAngularVelocity(),m_rbB.getAngularVelocity()); - } -} - - -void btHingeConstraint::getInfo2NonVirtual (btConstraintInfo2* info,const btTransform& transA,const btTransform& transB,const btVector3& angVelA,const btVector3& angVelB) -{ - ///the regular (virtual) implementation getInfo2 already performs 'testLimit' during getInfo1, so we need to do it now - testLimit(transA,transB); - - getInfo2Internal(info,transA,transB,angVelA,angVelB); -} - - -void btHingeConstraint::getInfo2Internal(btConstraintInfo2* info, const btTransform& transA,const btTransform& transB,const btVector3& angVelA,const btVector3& angVelB) -{ - - btAssert(!m_useSolveConstraintObsolete); - int i, skip = info->rowskip; - // transforms in world space - btTransform trA = transA*m_rbAFrame; - btTransform trB = transB*m_rbBFrame; - // pivot point - btVector3 pivotAInW = trA.getOrigin(); - btVector3 pivotBInW = trB.getOrigin(); -#if 0 - if (0) - { - for (i=0;i<6;i++) - { - info->m_J1linearAxis[i*skip]=0; - info->m_J1linearAxis[i*skip+1]=0; - info->m_J1linearAxis[i*skip+2]=0; - - info->m_J1angularAxis[i*skip]=0; - info->m_J1angularAxis[i*skip+1]=0; - info->m_J1angularAxis[i*skip+2]=0; - - info->m_J2linearAxis[i*skip]=0; - info->m_J2linearAxis[i*skip+1]=0; - info->m_J2linearAxis[i*skip+2]=0; - - info->m_J2angularAxis[i*skip]=0; - info->m_J2angularAxis[i*skip+1]=0; - info->m_J2angularAxis[i*skip+2]=0; - - info->m_constraintError[i*skip]=0.f; - } - } -#endif //#if 0 - // linear (all fixed) - - if (!m_angularOnly) - { - info->m_J1linearAxis[0] = 1; - info->m_J1linearAxis[skip + 1] = 1; - info->m_J1linearAxis[2 * skip + 2] = 1; - - info->m_J2linearAxis[0] = -1; - info->m_J2linearAxis[skip + 1] = -1; - info->m_J2linearAxis[2 * skip + 2] = -1; - } - - - - - btVector3 a1 = pivotAInW - transA.getOrigin(); - { - btVector3* angular0 = (btVector3*)(info->m_J1angularAxis); - btVector3* angular1 = (btVector3*)(info->m_J1angularAxis + skip); - btVector3* angular2 = (btVector3*)(info->m_J1angularAxis + 2 * skip); - btVector3 a1neg = -a1; - a1neg.getSkewSymmetricMatrix(angular0,angular1,angular2); - } - btVector3 a2 = pivotBInW - transB.getOrigin(); - { - btVector3* angular0 = (btVector3*)(info->m_J2angularAxis); - btVector3* angular1 = (btVector3*)(info->m_J2angularAxis + skip); - btVector3* angular2 = (btVector3*)(info->m_J2angularAxis + 2 * skip); - a2.getSkewSymmetricMatrix(angular0,angular1,angular2); - } - // linear RHS - btScalar normalErp = (m_flags & BT_HINGE_FLAGS_ERP_NORM) ? m_normalERP : info->erp; - - btScalar k = info->fps * normalErp; - if (!m_angularOnly) - { - for(i = 0; i < 3; i++) - { - info->m_constraintError[i * skip] = k * (pivotBInW[i] - pivotAInW[i]); - } - } - // make rotations around X and Y equal - // the hinge axis should be the only unconstrained - // rotational axis, the angular velocity of the two bodies perpendicular to - // the hinge axis should be equal. thus the constraint equations are - // p*w1 - p*w2 = 0 - // q*w1 - q*w2 = 0 - // where p and q are unit vectors normal to the hinge axis, and w1 and w2 - // are the angular velocity vectors of the two bodies. - // get hinge axis (Z) - btVector3 ax1 = trA.getBasis().getColumn(2); - // get 2 orthos to hinge axis (X, Y) - btVector3 p = trA.getBasis().getColumn(0); - btVector3 q = trA.getBasis().getColumn(1); - // set the two hinge angular rows - int s3 = 3 * info->rowskip; - int s4 = 4 * info->rowskip; - - info->m_J1angularAxis[s3 + 0] = p[0]; - info->m_J1angularAxis[s3 + 1] = p[1]; - info->m_J1angularAxis[s3 + 2] = p[2]; - info->m_J1angularAxis[s4 + 0] = q[0]; - info->m_J1angularAxis[s4 + 1] = q[1]; - info->m_J1angularAxis[s4 + 2] = q[2]; - - info->m_J2angularAxis[s3 + 0] = -p[0]; - info->m_J2angularAxis[s3 + 1] = -p[1]; - info->m_J2angularAxis[s3 + 2] = -p[2]; - info->m_J2angularAxis[s4 + 0] = -q[0]; - info->m_J2angularAxis[s4 + 1] = -q[1]; - info->m_J2angularAxis[s4 + 2] = -q[2]; - // compute the right hand side of the constraint equation. set relative - // body velocities along p and q to bring the hinge back into alignment. - // if ax1,ax2 are the unit length hinge axes as computed from body1 and - // body2, we need to rotate both bodies along the axis u = (ax1 x ax2). - // if `theta' is the angle between ax1 and ax2, we need an angular velocity - // along u to cover angle erp*theta in one step : - // |angular_velocity| = angle/time = erp*theta / stepsize - // = (erp*fps) * theta - // angular_velocity = |angular_velocity| * (ax1 x ax2) / |ax1 x ax2| - // = (erp*fps) * theta * (ax1 x ax2) / sin(theta) - // ...as ax1 and ax2 are unit length. if theta is smallish, - // theta ~= sin(theta), so - // angular_velocity = (erp*fps) * (ax1 x ax2) - // ax1 x ax2 is in the plane space of ax1, so we project the angular - // velocity to p and q to find the right hand side. - btVector3 ax2 = trB.getBasis().getColumn(2); - btVector3 u = ax1.cross(ax2); - info->m_constraintError[s3] = k * u.dot(p); - info->m_constraintError[s4] = k * u.dot(q); - // check angular limits - int nrow = 4; // last filled row - int srow; - btScalar limit_err = btScalar(0.0); - int limit = 0; - if(getSolveLimit()) - { -#ifdef _BT_USE_CENTER_LIMIT_ - limit_err = m_limit.getCorrection() * m_referenceSign; -#else - limit_err = m_correction * m_referenceSign; -#endif - limit = (limit_err > btScalar(0.0)) ? 1 : 2; - - } - // if the hinge has joint limits or motor, add in the extra row - bool powered = getEnableAngularMotor(); - if(limit || powered) - { - nrow++; - srow = nrow * info->rowskip; - info->m_J1angularAxis[srow+0] = ax1[0]; - info->m_J1angularAxis[srow+1] = ax1[1]; - info->m_J1angularAxis[srow+2] = ax1[2]; - - info->m_J2angularAxis[srow+0] = -ax1[0]; - info->m_J2angularAxis[srow+1] = -ax1[1]; - info->m_J2angularAxis[srow+2] = -ax1[2]; - - btScalar lostop = getLowerLimit(); - btScalar histop = getUpperLimit(); - if(limit && (lostop == histop)) - { // the joint motor is ineffective - powered = false; - } - info->m_constraintError[srow] = btScalar(0.0f); - btScalar currERP = (m_flags & BT_HINGE_FLAGS_ERP_STOP) ? m_stopERP : normalErp; - if(powered) - { - if(m_flags & BT_HINGE_FLAGS_CFM_NORM) - { - info->cfm[srow] = m_normalCFM; - } - btScalar mot_fact = getMotorFactor(m_hingeAngle, lostop, histop, m_motorTargetVelocity, info->fps * currERP); - info->m_constraintError[srow] += mot_fact * m_motorTargetVelocity * m_referenceSign; - info->m_lowerLimit[srow] = - m_maxMotorImpulse; - info->m_upperLimit[srow] = m_maxMotorImpulse; - } - if(limit) - { - k = info->fps * currERP; - info->m_constraintError[srow] += k * limit_err; - if(m_flags & BT_HINGE_FLAGS_CFM_STOP) - { - info->cfm[srow] = m_stopCFM; - } - if(lostop == histop) - { - // limited low and high simultaneously - info->m_lowerLimit[srow] = -SIMD_INFINITY; - info->m_upperLimit[srow] = SIMD_INFINITY; - } - else if(limit == 1) - { // low limit - info->m_lowerLimit[srow] = 0; - info->m_upperLimit[srow] = SIMD_INFINITY; - } - else - { // high limit - info->m_lowerLimit[srow] = -SIMD_INFINITY; - info->m_upperLimit[srow] = 0; - } - // bounce (we'll use slider parameter abs(1.0 - m_dampingLimAng) for that) -#ifdef _BT_USE_CENTER_LIMIT_ - btScalar bounce = m_limit.getRelaxationFactor(); -#else - btScalar bounce = m_relaxationFactor; -#endif - if(bounce > btScalar(0.0)) - { - btScalar vel = angVelA.dot(ax1); - vel -= angVelB.dot(ax1); - // only apply bounce if the velocity is incoming, and if the - // resulting c[] exceeds what we already have. - if(limit == 1) - { // low limit - if(vel < 0) - { - btScalar newc = -bounce * vel; - if(newc > info->m_constraintError[srow]) - { - info->m_constraintError[srow] = newc; - } - } - } - else - { // high limit - all those computations are reversed - if(vel > 0) - { - btScalar newc = -bounce * vel; - if(newc < info->m_constraintError[srow]) - { - info->m_constraintError[srow] = newc; - } - } - } - } -#ifdef _BT_USE_CENTER_LIMIT_ - info->m_constraintError[srow] *= m_limit.getBiasFactor(); -#else - info->m_constraintError[srow] *= m_biasFactor; -#endif - } // if(limit) - } // if angular limit or powered -} - - -void btHingeConstraint::setFrames(const btTransform & frameA, const btTransform & frameB) -{ - m_rbAFrame = frameA; - m_rbBFrame = frameB; - buildJacobian(); -} - - -void btHingeConstraint::updateRHS(btScalar timeStep) -{ - (void)timeStep; - -} - - - - -btScalar btHingeConstraint::getHingeAngle() -{ - return getHingeAngle(m_rbA.getCenterOfMassTransform(),m_rbB.getCenterOfMassTransform()); -} - -btScalar btHingeConstraint::getHingeAngle(const btTransform& transA,const btTransform& transB) -{ - const btVector3 refAxis0 = transA.getBasis() * m_rbAFrame.getBasis().getColumn(0); - const btVector3 refAxis1 = transA.getBasis() * m_rbAFrame.getBasis().getColumn(1); - const btVector3 swingAxis = transB.getBasis() * m_rbBFrame.getBasis().getColumn(1); -// btScalar angle = btAtan2Fast(swingAxis.dot(refAxis0), swingAxis.dot(refAxis1)); - btScalar angle = btAtan2(swingAxis.dot(refAxis0), swingAxis.dot(refAxis1)); - return m_referenceSign * angle; -} - - - -void btHingeConstraint::testLimit(const btTransform& transA,const btTransform& transB) -{ - // Compute limit information - m_hingeAngle = getHingeAngle(transA,transB); -#ifdef _BT_USE_CENTER_LIMIT_ - m_limit.test(m_hingeAngle); -#else - m_correction = btScalar(0.); - m_limitSign = btScalar(0.); - m_solveLimit = false; - if (m_lowerLimit <= m_upperLimit) - { - m_hingeAngle = btAdjustAngleToLimits(m_hingeAngle, m_lowerLimit, m_upperLimit); - if (m_hingeAngle <= m_lowerLimit) - { - m_correction = (m_lowerLimit - m_hingeAngle); - m_limitSign = 1.0f; - m_solveLimit = true; - } - else if (m_hingeAngle >= m_upperLimit) - { - m_correction = m_upperLimit - m_hingeAngle; - m_limitSign = -1.0f; - m_solveLimit = true; - } - } -#endif - return; -} - - -static btVector3 vHinge(0, 0, btScalar(1)); - -void btHingeConstraint::setMotorTarget(const btQuaternion& qAinB, btScalar dt) -{ - // convert target from body to constraint space - btQuaternion qConstraint = m_rbBFrame.getRotation().inverse() * qAinB * m_rbAFrame.getRotation(); - qConstraint.normalize(); - - // extract "pure" hinge component - btVector3 vNoHinge = quatRotate(qConstraint, vHinge); vNoHinge.normalize(); - btQuaternion qNoHinge = shortestArcQuat(vHinge, vNoHinge); - btQuaternion qHinge = qNoHinge.inverse() * qConstraint; - qHinge.normalize(); - - // compute angular target, clamped to limits - btScalar targetAngle = qHinge.getAngle(); - if (targetAngle > SIMD_PI) // long way around. flip quat and recalculate. - { - qHinge = -(qHinge); - targetAngle = qHinge.getAngle(); - } - if (qHinge.getZ() < 0) - targetAngle = -targetAngle; - - setMotorTarget(targetAngle, dt); -} - -void btHingeConstraint::setMotorTarget(btScalar targetAngle, btScalar dt) -{ -#ifdef _BT_USE_CENTER_LIMIT_ - m_limit.fit(targetAngle); -#else - if (m_lowerLimit < m_upperLimit) - { - if (targetAngle < m_lowerLimit) - targetAngle = m_lowerLimit; - else if (targetAngle > m_upperLimit) - targetAngle = m_upperLimit; - } -#endif - // compute angular velocity - btScalar curAngle = getHingeAngle(m_rbA.getCenterOfMassTransform(),m_rbB.getCenterOfMassTransform()); - btScalar dAngle = targetAngle - curAngle; - m_motorTargetVelocity = dAngle / dt; -} - - - -void btHingeConstraint::getInfo2InternalUsingFrameOffset(btConstraintInfo2* info, const btTransform& transA,const btTransform& transB,const btVector3& angVelA,const btVector3& angVelB) -{ - btAssert(!m_useSolveConstraintObsolete); - int i, s = info->rowskip; - // transforms in world space - btTransform trA = transA*m_rbAFrame; - btTransform trB = transB*m_rbBFrame; - // pivot point -// btVector3 pivotAInW = trA.getOrigin(); -// btVector3 pivotBInW = trB.getOrigin(); -#if 1 - // difference between frames in WCS - btVector3 ofs = trB.getOrigin() - trA.getOrigin(); - // now get weight factors depending on masses - btScalar miA = getRigidBodyA().getInvMass(); - btScalar miB = getRigidBodyB().getInvMass(); - bool hasStaticBody = (miA < SIMD_EPSILON) || (miB < SIMD_EPSILON); - btScalar miS = miA + miB; - btScalar factA, factB; - if(miS > btScalar(0.f)) - { - factA = miB / miS; - } - else - { - factA = btScalar(0.5f); - } - factB = btScalar(1.0f) - factA; - // get the desired direction of hinge axis - // as weighted sum of Z-orthos of frameA and frameB in WCS - btVector3 ax1A = trA.getBasis().getColumn(2); - btVector3 ax1B = trB.getBasis().getColumn(2); - btVector3 ax1 = ax1A * factA + ax1B * factB; - ax1.normalize(); - // fill first 3 rows - // we want: velA + wA x relA == velB + wB x relB - btTransform bodyA_trans = transA; - btTransform bodyB_trans = transB; - int s0 = 0; - int s1 = s; - int s2 = s * 2; - int nrow = 2; // last filled row - btVector3 tmpA, tmpB, relA, relB, p, q; - // get vector from bodyB to frameB in WCS - relB = trB.getOrigin() - bodyB_trans.getOrigin(); - // get its projection to hinge axis - btVector3 projB = ax1 * relB.dot(ax1); - // get vector directed from bodyB to hinge axis (and orthogonal to it) - btVector3 orthoB = relB - projB; - // same for bodyA - relA = trA.getOrigin() - bodyA_trans.getOrigin(); - btVector3 projA = ax1 * relA.dot(ax1); - btVector3 orthoA = relA - projA; - btVector3 totalDist = projA - projB; - // get offset vectors relA and relB - relA = orthoA + totalDist * factA; - relB = orthoB - totalDist * factB; - // now choose average ortho to hinge axis - p = orthoB * factA + orthoA * factB; - btScalar len2 = p.length2(); - if(len2 > SIMD_EPSILON) - { - p /= btSqrt(len2); - } - else - { - p = trA.getBasis().getColumn(1); - } - // make one more ortho - q = ax1.cross(p); - // fill three rows - tmpA = relA.cross(p); - tmpB = relB.cross(p); - for (i=0; i<3; i++) info->m_J1angularAxis[s0+i] = tmpA[i]; - for (i=0; i<3; i++) info->m_J2angularAxis[s0+i] = -tmpB[i]; - tmpA = relA.cross(q); - tmpB = relB.cross(q); - if(hasStaticBody && getSolveLimit()) - { // to make constraint between static and dynamic objects more rigid - // remove wA (or wB) from equation if angular limit is hit - tmpB *= factB; - tmpA *= factA; - } - for (i=0; i<3; i++) info->m_J1angularAxis[s1+i] = tmpA[i]; - for (i=0; i<3; i++) info->m_J2angularAxis[s1+i] = -tmpB[i]; - tmpA = relA.cross(ax1); - tmpB = relB.cross(ax1); - if(hasStaticBody) - { // to make constraint between static and dynamic objects more rigid - // remove wA (or wB) from equation - tmpB *= factB; - tmpA *= factA; - } - for (i=0; i<3; i++) info->m_J1angularAxis[s2+i] = tmpA[i]; - for (i=0; i<3; i++) info->m_J2angularAxis[s2+i] = -tmpB[i]; - - btScalar normalErp = (m_flags & BT_HINGE_FLAGS_ERP_NORM)? m_normalERP : info->erp; - btScalar k = info->fps * normalErp; - - if (!m_angularOnly) - { - for (i=0; i<3; i++) info->m_J1linearAxis[s0+i] = p[i]; - for (i=0; i<3; i++) info->m_J1linearAxis[s1+i] = q[i]; - for (i=0; i<3; i++) info->m_J1linearAxis[s2+i] = ax1[i]; - - for (i=0; i<3; i++) info->m_J2linearAxis[s0+i] = -p[i]; - for (i=0; i<3; i++) info->m_J2linearAxis[s1+i] = -q[i]; - for (i=0; i<3; i++) info->m_J2linearAxis[s2+i] = -ax1[i]; - - // compute three elements of right hand side - - btScalar rhs = k * p.dot(ofs); - info->m_constraintError[s0] = rhs; - rhs = k * q.dot(ofs); - info->m_constraintError[s1] = rhs; - rhs = k * ax1.dot(ofs); - info->m_constraintError[s2] = rhs; - } - // the hinge axis should be the only unconstrained - // rotational axis, the angular velocity of the two bodies perpendicular to - // the hinge axis should be equal. thus the constraint equations are - // p*w1 - p*w2 = 0 - // q*w1 - q*w2 = 0 - // where p and q are unit vectors normal to the hinge axis, and w1 and w2 - // are the angular velocity vectors of the two bodies. - int s3 = 3 * s; - int s4 = 4 * s; - info->m_J1angularAxis[s3 + 0] = p[0]; - info->m_J1angularAxis[s3 + 1] = p[1]; - info->m_J1angularAxis[s3 + 2] = p[2]; - info->m_J1angularAxis[s4 + 0] = q[0]; - info->m_J1angularAxis[s4 + 1] = q[1]; - info->m_J1angularAxis[s4 + 2] = q[2]; - - info->m_J2angularAxis[s3 + 0] = -p[0]; - info->m_J2angularAxis[s3 + 1] = -p[1]; - info->m_J2angularAxis[s3 + 2] = -p[2]; - info->m_J2angularAxis[s4 + 0] = -q[0]; - info->m_J2angularAxis[s4 + 1] = -q[1]; - info->m_J2angularAxis[s4 + 2] = -q[2]; - // compute the right hand side of the constraint equation. set relative - // body velocities along p and q to bring the hinge back into alignment. - // if ax1A,ax1B are the unit length hinge axes as computed from bodyA and - // bodyB, we need to rotate both bodies along the axis u = (ax1 x ax2). - // if "theta" is the angle between ax1 and ax2, we need an angular velocity - // along u to cover angle erp*theta in one step : - // |angular_velocity| = angle/time = erp*theta / stepsize - // = (erp*fps) * theta - // angular_velocity = |angular_velocity| * (ax1 x ax2) / |ax1 x ax2| - // = (erp*fps) * theta * (ax1 x ax2) / sin(theta) - // ...as ax1 and ax2 are unit length. if theta is smallish, - // theta ~= sin(theta), so - // angular_velocity = (erp*fps) * (ax1 x ax2) - // ax1 x ax2 is in the plane space of ax1, so we project the angular - // velocity to p and q to find the right hand side. - k = info->fps * normalErp;//?? - - btVector3 u = ax1A.cross(ax1B); - info->m_constraintError[s3] = k * u.dot(p); - info->m_constraintError[s4] = k * u.dot(q); -#endif - // check angular limits - nrow = 4; // last filled row - int srow; - btScalar limit_err = btScalar(0.0); - int limit = 0; - if(getSolveLimit()) - { -#ifdef _BT_USE_CENTER_LIMIT_ - limit_err = m_limit.getCorrection() * m_referenceSign; -#else - limit_err = m_correction * m_referenceSign; -#endif - limit = (limit_err > btScalar(0.0)) ? 1 : 2; - - } - // if the hinge has joint limits or motor, add in the extra row - bool powered = getEnableAngularMotor(); - if(limit || powered) - { - nrow++; - srow = nrow * info->rowskip; - info->m_J1angularAxis[srow+0] = ax1[0]; - info->m_J1angularAxis[srow+1] = ax1[1]; - info->m_J1angularAxis[srow+2] = ax1[2]; - - info->m_J2angularAxis[srow+0] = -ax1[0]; - info->m_J2angularAxis[srow+1] = -ax1[1]; - info->m_J2angularAxis[srow+2] = -ax1[2]; - - btScalar lostop = getLowerLimit(); - btScalar histop = getUpperLimit(); - if(limit && (lostop == histop)) - { // the joint motor is ineffective - powered = false; - } - info->m_constraintError[srow] = btScalar(0.0f); - btScalar currERP = (m_flags & BT_HINGE_FLAGS_ERP_STOP) ? m_stopERP : normalErp; - if(powered) - { - if(m_flags & BT_HINGE_FLAGS_CFM_NORM) - { - info->cfm[srow] = m_normalCFM; - } - btScalar mot_fact = getMotorFactor(m_hingeAngle, lostop, histop, m_motorTargetVelocity, info->fps * currERP); - info->m_constraintError[srow] += mot_fact * m_motorTargetVelocity * m_referenceSign; - info->m_lowerLimit[srow] = - m_maxMotorImpulse; - info->m_upperLimit[srow] = m_maxMotorImpulse; - } - if(limit) - { - k = info->fps * currERP; - info->m_constraintError[srow] += k * limit_err; - if(m_flags & BT_HINGE_FLAGS_CFM_STOP) - { - info->cfm[srow] = m_stopCFM; - } - if(lostop == histop) - { - // limited low and high simultaneously - info->m_lowerLimit[srow] = -SIMD_INFINITY; - info->m_upperLimit[srow] = SIMD_INFINITY; - } - else if(limit == 1) - { // low limit - info->m_lowerLimit[srow] = 0; - info->m_upperLimit[srow] = SIMD_INFINITY; - } - else - { // high limit - info->m_lowerLimit[srow] = -SIMD_INFINITY; - info->m_upperLimit[srow] = 0; - } - // bounce (we'll use slider parameter abs(1.0 - m_dampingLimAng) for that) -#ifdef _BT_USE_CENTER_LIMIT_ - btScalar bounce = m_limit.getRelaxationFactor(); -#else - btScalar bounce = m_relaxationFactor; -#endif - if(bounce > btScalar(0.0)) - { - btScalar vel = angVelA.dot(ax1); - vel -= angVelB.dot(ax1); - // only apply bounce if the velocity is incoming, and if the - // resulting c[] exceeds what we already have. - if(limit == 1) - { // low limit - if(vel < 0) - { - btScalar newc = -bounce * vel; - if(newc > info->m_constraintError[srow]) - { - info->m_constraintError[srow] = newc; - } - } - } - else - { // high limit - all those computations are reversed - if(vel > 0) - { - btScalar newc = -bounce * vel; - if(newc < info->m_constraintError[srow]) - { - info->m_constraintError[srow] = newc; - } - } - } - } -#ifdef _BT_USE_CENTER_LIMIT_ - info->m_constraintError[srow] *= m_limit.getBiasFactor(); -#else - info->m_constraintError[srow] *= m_biasFactor; -#endif - } // if(limit) - } // if angular limit or powered -} - - -///override the default global value of a parameter (such as ERP or CFM), optionally provide the axis (0..5). -///If no axis is provided, it uses the default axis for this constraint. -void btHingeConstraint::setParam(int num, btScalar value, int axis) -{ - if((axis == -1) || (axis == 5)) - { - switch(num) - { - case BT_CONSTRAINT_STOP_ERP : - m_stopERP = value; - m_flags |= BT_HINGE_FLAGS_ERP_STOP; - break; - case BT_CONSTRAINT_STOP_CFM : - m_stopCFM = value; - m_flags |= BT_HINGE_FLAGS_CFM_STOP; - break; - case BT_CONSTRAINT_CFM : - m_normalCFM = value; - m_flags |= BT_HINGE_FLAGS_CFM_NORM; - break; - case BT_CONSTRAINT_ERP: - m_normalERP = value; - m_flags |= BT_HINGE_FLAGS_ERP_NORM; - break; - default : - btAssertConstrParams(0); - } - } - else - { - btAssertConstrParams(0); - } -} - -///return the local value of parameter -btScalar btHingeConstraint::getParam(int num, int axis) const -{ - btScalar retVal = 0; - if((axis == -1) || (axis == 5)) - { - switch(num) - { - case BT_CONSTRAINT_STOP_ERP : - btAssertConstrParams(m_flags & BT_HINGE_FLAGS_ERP_STOP); - retVal = m_stopERP; - break; - case BT_CONSTRAINT_STOP_CFM : - btAssertConstrParams(m_flags & BT_HINGE_FLAGS_CFM_STOP); - retVal = m_stopCFM; - break; - case BT_CONSTRAINT_CFM : - btAssertConstrParams(m_flags & BT_HINGE_FLAGS_CFM_NORM); - retVal = m_normalCFM; - break; - case BT_CONSTRAINT_ERP: - btAssertConstrParams(m_flags & BT_HINGE_FLAGS_ERP_NORM); - retVal = m_normalERP; - break; - default : - btAssertConstrParams(0); - } - } - else - { - btAssertConstrParams(0); - } - return retVal; -} - - diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btHingeConstraint.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btHingeConstraint.h deleted file mode 100644 index 3c3df24dba..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btHingeConstraint.h +++ /dev/null @@ -1,503 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -/* Hinge Constraint by Dirk Gregorius. Limits added by Marcus Hennix at Starbreeze Studios */ - -#ifndef BT_HINGECONSTRAINT_H -#define BT_HINGECONSTRAINT_H - -#define _BT_USE_CENTER_LIMIT_ 1 - - -#include "LinearMath/btVector3.h" -#include "btJacobianEntry.h" -#include "btTypedConstraint.h" - -class btRigidBody; - -#ifdef BT_USE_DOUBLE_PRECISION -#define btHingeConstraintData btHingeConstraintDoubleData2 //rename to 2 for backwards compatibility, so we can still load the 'btHingeConstraintDoubleData' version -#define btHingeConstraintDataName "btHingeConstraintDoubleData2" -#else -#define btHingeConstraintData btHingeConstraintFloatData -#define btHingeConstraintDataName "btHingeConstraintFloatData" -#endif //BT_USE_DOUBLE_PRECISION - - - -enum btHingeFlags -{ - BT_HINGE_FLAGS_CFM_STOP = 1, - BT_HINGE_FLAGS_ERP_STOP = 2, - BT_HINGE_FLAGS_CFM_NORM = 4, - BT_HINGE_FLAGS_ERP_NORM = 8 -}; - - -/// hinge constraint between two rigidbodies each with a pivotpoint that descibes the axis location in local space -/// axis defines the orientation of the hinge axis -ATTRIBUTE_ALIGNED16(class) btHingeConstraint : public btTypedConstraint -{ -#ifdef IN_PARALLELL_SOLVER -public: -#endif - btJacobianEntry m_jac[3]; //3 orthogonal linear constraints - btJacobianEntry m_jacAng[3]; //2 orthogonal angular constraints+ 1 for limit/motor - - btTransform m_rbAFrame; // constraint axii. Assumes z is hinge axis. - btTransform m_rbBFrame; - - btScalar m_motorTargetVelocity; - btScalar m_maxMotorImpulse; - - -#ifdef _BT_USE_CENTER_LIMIT_ - btAngularLimit m_limit; -#else - btScalar m_lowerLimit; - btScalar m_upperLimit; - btScalar m_limitSign; - btScalar m_correction; - - btScalar m_limitSoftness; - btScalar m_biasFactor; - btScalar m_relaxationFactor; - - bool m_solveLimit; -#endif - - btScalar m_kHinge; - - - btScalar m_accLimitImpulse; - btScalar m_hingeAngle; - btScalar m_referenceSign; - - bool m_angularOnly; - bool m_enableAngularMotor; - bool m_useSolveConstraintObsolete; - bool m_useOffsetForConstraintFrame; - bool m_useReferenceFrameA; - - btScalar m_accMotorImpulse; - - int m_flags; - btScalar m_normalCFM; - btScalar m_normalERP; - btScalar m_stopCFM; - btScalar m_stopERP; - - -public: - - BT_DECLARE_ALIGNED_ALLOCATOR(); - - btHingeConstraint(btRigidBody& rbA,btRigidBody& rbB, const btVector3& pivotInA,const btVector3& pivotInB, const btVector3& axisInA,const btVector3& axisInB, bool useReferenceFrameA = false); - - btHingeConstraint(btRigidBody& rbA,const btVector3& pivotInA,const btVector3& axisInA, bool useReferenceFrameA = false); - - btHingeConstraint(btRigidBody& rbA,btRigidBody& rbB, const btTransform& rbAFrame, const btTransform& rbBFrame, bool useReferenceFrameA = false); - - btHingeConstraint(btRigidBody& rbA,const btTransform& rbAFrame, bool useReferenceFrameA = false); - - - virtual void buildJacobian(); - - virtual void getInfo1 (btConstraintInfo1* info); - - void getInfo1NonVirtual(btConstraintInfo1* info); - - virtual void getInfo2 (btConstraintInfo2* info); - - void getInfo2NonVirtual(btConstraintInfo2* info,const btTransform& transA,const btTransform& transB,const btVector3& angVelA,const btVector3& angVelB); - - void getInfo2Internal(btConstraintInfo2* info,const btTransform& transA,const btTransform& transB,const btVector3& angVelA,const btVector3& angVelB); - void getInfo2InternalUsingFrameOffset(btConstraintInfo2* info,const btTransform& transA,const btTransform& transB,const btVector3& angVelA,const btVector3& angVelB); - - - void updateRHS(btScalar timeStep); - - const btRigidBody& getRigidBodyA() const - { - return m_rbA; - } - const btRigidBody& getRigidBodyB() const - { - return m_rbB; - } - - btRigidBody& getRigidBodyA() - { - return m_rbA; - } - - btRigidBody& getRigidBodyB() - { - return m_rbB; - } - - btTransform& getFrameOffsetA() - { - return m_rbAFrame; - } - - btTransform& getFrameOffsetB() - { - return m_rbBFrame; - } - - void setFrames(const btTransform& frameA, const btTransform& frameB); - - void setAngularOnly(bool angularOnly) - { - m_angularOnly = angularOnly; - } - - void enableAngularMotor(bool enableMotor,btScalar targetVelocity,btScalar maxMotorImpulse) - { - m_enableAngularMotor = enableMotor; - m_motorTargetVelocity = targetVelocity; - m_maxMotorImpulse = maxMotorImpulse; - } - - // extra motor API, including ability to set a target rotation (as opposed to angular velocity) - // note: setMotorTarget sets angular velocity under the hood, so you must call it every tick to - // maintain a given angular target. - void enableMotor(bool enableMotor) { m_enableAngularMotor = enableMotor; } - void setMaxMotorImpulse(btScalar maxMotorImpulse) { m_maxMotorImpulse = maxMotorImpulse; } - void setMotorTargetVelocity(btScalar motorTargetVelocity) { m_motorTargetVelocity = motorTargetVelocity; } - void setMotorTarget(const btQuaternion& qAinB, btScalar dt); // qAinB is rotation of body A wrt body B. - void setMotorTarget(btScalar targetAngle, btScalar dt); - - - void setLimit(btScalar low,btScalar high,btScalar _softness = 0.9f, btScalar _biasFactor = 0.3f, btScalar _relaxationFactor = 1.0f) - { -#ifdef _BT_USE_CENTER_LIMIT_ - m_limit.set(low, high, _softness, _biasFactor, _relaxationFactor); -#else - m_lowerLimit = btNormalizeAngle(low); - m_upperLimit = btNormalizeAngle(high); - m_limitSoftness = _softness; - m_biasFactor = _biasFactor; - m_relaxationFactor = _relaxationFactor; -#endif - } - - btScalar getLimitSoftness() const - { -#ifdef _BT_USE_CENTER_LIMIT_ - return m_limit.getSoftness(); -#else - return m_limitSoftness; -#endif - } - - btScalar getLimitBiasFactor() const - { -#ifdef _BT_USE_CENTER_LIMIT_ - return m_limit.getBiasFactor(); -#else - return m_biasFactor; -#endif - } - - btScalar getLimitRelaxationFactor() const - { -#ifdef _BT_USE_CENTER_LIMIT_ - return m_limit.getRelaxationFactor(); -#else - return m_relaxationFactor; -#endif - } - - void setAxis(btVector3& axisInA) - { - btVector3 rbAxisA1, rbAxisA2; - btPlaneSpace1(axisInA, rbAxisA1, rbAxisA2); - btVector3 pivotInA = m_rbAFrame.getOrigin(); -// m_rbAFrame.getOrigin() = pivotInA; - m_rbAFrame.getBasis().setValue( rbAxisA1.getX(),rbAxisA2.getX(),axisInA.getX(), - rbAxisA1.getY(),rbAxisA2.getY(),axisInA.getY(), - rbAxisA1.getZ(),rbAxisA2.getZ(),axisInA.getZ() ); - - btVector3 axisInB = m_rbA.getCenterOfMassTransform().getBasis() * axisInA; - - btQuaternion rotationArc = shortestArcQuat(axisInA,axisInB); - btVector3 rbAxisB1 = quatRotate(rotationArc,rbAxisA1); - btVector3 rbAxisB2 = axisInB.cross(rbAxisB1); - - m_rbBFrame.getOrigin() = m_rbB.getCenterOfMassTransform().inverse()(m_rbA.getCenterOfMassTransform()(pivotInA)); - - m_rbBFrame.getBasis().setValue( rbAxisB1.getX(),rbAxisB2.getX(),axisInB.getX(), - rbAxisB1.getY(),rbAxisB2.getY(),axisInB.getY(), - rbAxisB1.getZ(),rbAxisB2.getZ(),axisInB.getZ() ); - m_rbBFrame.getBasis() = m_rbB.getCenterOfMassTransform().getBasis().inverse() * m_rbBFrame.getBasis(); - - } - - bool hasLimit() const { -#ifdef _BT_USE_CENTER_LIMIT_ - return m_limit.getHalfRange() > 0; -#else - return m_lowerLimit <= m_upperLimit; -#endif - } - - btScalar getLowerLimit() const - { -#ifdef _BT_USE_CENTER_LIMIT_ - return m_limit.getLow(); -#else - return m_lowerLimit; -#endif - } - - btScalar getUpperLimit() const - { -#ifdef _BT_USE_CENTER_LIMIT_ - return m_limit.getHigh(); -#else - return m_upperLimit; -#endif - } - - - ///The getHingeAngle gives the hinge angle in range [-PI,PI] - btScalar getHingeAngle(); - - btScalar getHingeAngle(const btTransform& transA,const btTransform& transB); - - void testLimit(const btTransform& transA,const btTransform& transB); - - - const btTransform& getAFrame() const { return m_rbAFrame; }; - const btTransform& getBFrame() const { return m_rbBFrame; }; - - btTransform& getAFrame() { return m_rbAFrame; }; - btTransform& getBFrame() { return m_rbBFrame; }; - - inline int getSolveLimit() - { -#ifdef _BT_USE_CENTER_LIMIT_ - return m_limit.isLimit(); -#else - return m_solveLimit; -#endif - } - - inline btScalar getLimitSign() - { -#ifdef _BT_USE_CENTER_LIMIT_ - return m_limit.getSign(); -#else - return m_limitSign; -#endif - } - - inline bool getAngularOnly() - { - return m_angularOnly; - } - inline bool getEnableAngularMotor() - { - return m_enableAngularMotor; - } - inline btScalar getMotorTargetVelocity() - { - return m_motorTargetVelocity; - } - inline btScalar getMaxMotorImpulse() - { - return m_maxMotorImpulse; - } - // access for UseFrameOffset - bool getUseFrameOffset() { return m_useOffsetForConstraintFrame; } - void setUseFrameOffset(bool frameOffsetOnOff) { m_useOffsetForConstraintFrame = frameOffsetOnOff; } - // access for UseReferenceFrameA - bool getUseReferenceFrameA() const { return m_useReferenceFrameA; } - void setUseReferenceFrameA(bool useReferenceFrameA) { m_useReferenceFrameA = useReferenceFrameA; } - - ///override the default global value of a parameter (such as ERP or CFM), optionally provide the axis (0..5). - ///If no axis is provided, it uses the default axis for this constraint. - virtual void setParam(int num, btScalar value, int axis = -1); - ///return the local value of parameter - virtual btScalar getParam(int num, int axis = -1) const; - - virtual int getFlags() const - { - return m_flags; - } - - virtual int calculateSerializeBufferSize() const; - - ///fills the dataBuffer and returns the struct name (and 0 on failure) - virtual const char* serialize(void* dataBuffer, btSerializer* serializer) const; - - -}; - - -//only for backward compatibility -#ifdef BT_BACKWARDS_COMPATIBLE_SERIALIZATION -///this structure is not used, except for loading pre-2.82 .bullet files -struct btHingeConstraintDoubleData -{ - btTypedConstraintData m_typeConstraintData; - btTransformDoubleData m_rbAFrame; // constraint axii. Assumes z is hinge axis. - btTransformDoubleData m_rbBFrame; - int m_useReferenceFrameA; - int m_angularOnly; - int m_enableAngularMotor; - float m_motorTargetVelocity; - float m_maxMotorImpulse; - - float m_lowerLimit; - float m_upperLimit; - float m_limitSoftness; - float m_biasFactor; - float m_relaxationFactor; - -}; -#endif //BT_BACKWARDS_COMPATIBLE_SERIALIZATION - -///The getAccumulatedHingeAngle returns the accumulated hinge angle, taking rotation across the -PI/PI boundary into account -ATTRIBUTE_ALIGNED16(class) btHingeAccumulatedAngleConstraint : public btHingeConstraint -{ -protected: - btScalar m_accumulatedAngle; -public: - - BT_DECLARE_ALIGNED_ALLOCATOR(); - - btHingeAccumulatedAngleConstraint(btRigidBody& rbA,btRigidBody& rbB, const btVector3& pivotInA,const btVector3& pivotInB, const btVector3& axisInA,const btVector3& axisInB, bool useReferenceFrameA = false) - :btHingeConstraint(rbA,rbB,pivotInA,pivotInB, axisInA,axisInB, useReferenceFrameA ) - { - m_accumulatedAngle=getHingeAngle(); - } - - btHingeAccumulatedAngleConstraint(btRigidBody& rbA,const btVector3& pivotInA,const btVector3& axisInA, bool useReferenceFrameA = false) - :btHingeConstraint(rbA,pivotInA,axisInA, useReferenceFrameA) - { - m_accumulatedAngle=getHingeAngle(); - } - - btHingeAccumulatedAngleConstraint(btRigidBody& rbA,btRigidBody& rbB, const btTransform& rbAFrame, const btTransform& rbBFrame, bool useReferenceFrameA = false) - :btHingeConstraint(rbA,rbB, rbAFrame, rbBFrame, useReferenceFrameA ) - { - m_accumulatedAngle=getHingeAngle(); - } - - btHingeAccumulatedAngleConstraint(btRigidBody& rbA,const btTransform& rbAFrame, bool useReferenceFrameA = false) - :btHingeConstraint(rbA,rbAFrame, useReferenceFrameA ) - { - m_accumulatedAngle=getHingeAngle(); - } - btScalar getAccumulatedHingeAngle(); - void setAccumulatedHingeAngle(btScalar accAngle); - virtual void getInfo1 (btConstraintInfo1* info); - -}; - -struct btHingeConstraintFloatData -{ - btTypedConstraintData m_typeConstraintData; - btTransformFloatData m_rbAFrame; // constraint axii. Assumes z is hinge axis. - btTransformFloatData m_rbBFrame; - int m_useReferenceFrameA; - int m_angularOnly; - - int m_enableAngularMotor; - float m_motorTargetVelocity; - float m_maxMotorImpulse; - - float m_lowerLimit; - float m_upperLimit; - float m_limitSoftness; - float m_biasFactor; - float m_relaxationFactor; - -}; - - - -///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64 -struct btHingeConstraintDoubleData2 -{ - btTypedConstraintDoubleData m_typeConstraintData; - btTransformDoubleData m_rbAFrame; // constraint axii. Assumes z is hinge axis. - btTransformDoubleData m_rbBFrame; - int m_useReferenceFrameA; - int m_angularOnly; - int m_enableAngularMotor; - double m_motorTargetVelocity; - double m_maxMotorImpulse; - - double m_lowerLimit; - double m_upperLimit; - double m_limitSoftness; - double m_biasFactor; - double m_relaxationFactor; - char m_padding1[4]; - -}; - - - - -SIMD_FORCE_INLINE int btHingeConstraint::calculateSerializeBufferSize() const -{ - return sizeof(btHingeConstraintData); -} - - ///fills the dataBuffer and returns the struct name (and 0 on failure) -SIMD_FORCE_INLINE const char* btHingeConstraint::serialize(void* dataBuffer, btSerializer* serializer) const -{ - btHingeConstraintData* hingeData = (btHingeConstraintData*)dataBuffer; - btTypedConstraint::serialize(&hingeData->m_typeConstraintData,serializer); - - m_rbAFrame.serialize(hingeData->m_rbAFrame); - m_rbBFrame.serialize(hingeData->m_rbBFrame); - - hingeData->m_angularOnly = m_angularOnly; - hingeData->m_enableAngularMotor = m_enableAngularMotor; - hingeData->m_maxMotorImpulse = float(m_maxMotorImpulse); - hingeData->m_motorTargetVelocity = float(m_motorTargetVelocity); - hingeData->m_useReferenceFrameA = m_useReferenceFrameA; -#ifdef _BT_USE_CENTER_LIMIT_ - hingeData->m_lowerLimit = float(m_limit.getLow()); - hingeData->m_upperLimit = float(m_limit.getHigh()); - hingeData->m_limitSoftness = float(m_limit.getSoftness()); - hingeData->m_biasFactor = float(m_limit.getBiasFactor()); - hingeData->m_relaxationFactor = float(m_limit.getRelaxationFactor()); -#else - hingeData->m_lowerLimit = float(m_lowerLimit); - hingeData->m_upperLimit = float(m_upperLimit); - hingeData->m_limitSoftness = float(m_limitSoftness); - hingeData->m_biasFactor = float(m_biasFactor); - hingeData->m_relaxationFactor = float(m_relaxationFactor); -#endif - - // Fill padding with zeros to appease msan. -#ifdef BT_USE_DOUBLE_PRECISION - hingeData->m_padding1[0] = 0; - hingeData->m_padding1[1] = 0; - hingeData->m_padding1[2] = 0; - hingeData->m_padding1[3] = 0; -#endif - - return btHingeConstraintDataName; -} - -#endif //BT_HINGECONSTRAINT_H diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btJacobianEntry.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btJacobianEntry.h deleted file mode 100644 index 125580d199..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btJacobianEntry.h +++ /dev/null @@ -1,155 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_JACOBIAN_ENTRY_H -#define BT_JACOBIAN_ENTRY_H - -#include "LinearMath/btMatrix3x3.h" - - -//notes: -// Another memory optimization would be to store m_1MinvJt in the remaining 3 w components -// which makes the btJacobianEntry memory layout 16 bytes -// if you only are interested in angular part, just feed massInvA and massInvB zero - -/// Jacobian entry is an abstraction that allows to describe constraints -/// it can be used in combination with a constraint solver -/// Can be used to relate the effect of an impulse to the constraint error -ATTRIBUTE_ALIGNED16(class) btJacobianEntry -{ -public: - btJacobianEntry() {}; - //constraint between two different rigidbodies - btJacobianEntry( - const btMatrix3x3& world2A, - const btMatrix3x3& world2B, - const btVector3& rel_pos1,const btVector3& rel_pos2, - const btVector3& jointAxis, - const btVector3& inertiaInvA, - const btScalar massInvA, - const btVector3& inertiaInvB, - const btScalar massInvB) - :m_linearJointAxis(jointAxis) - { - m_aJ = world2A*(rel_pos1.cross(m_linearJointAxis)); - m_bJ = world2B*(rel_pos2.cross(-m_linearJointAxis)); - m_0MinvJt = inertiaInvA * m_aJ; - m_1MinvJt = inertiaInvB * m_bJ; - m_Adiag = massInvA + m_0MinvJt.dot(m_aJ) + massInvB + m_1MinvJt.dot(m_bJ); - - btAssert(m_Adiag > btScalar(0.0)); - } - - //angular constraint between two different rigidbodies - btJacobianEntry(const btVector3& jointAxis, - const btMatrix3x3& world2A, - const btMatrix3x3& world2B, - const btVector3& inertiaInvA, - const btVector3& inertiaInvB) - :m_linearJointAxis(btVector3(btScalar(0.),btScalar(0.),btScalar(0.))) - { - m_aJ= world2A*jointAxis; - m_bJ = world2B*-jointAxis; - m_0MinvJt = inertiaInvA * m_aJ; - m_1MinvJt = inertiaInvB * m_bJ; - m_Adiag = m_0MinvJt.dot(m_aJ) + m_1MinvJt.dot(m_bJ); - - btAssert(m_Adiag > btScalar(0.0)); - } - - //angular constraint between two different rigidbodies - btJacobianEntry(const btVector3& axisInA, - const btVector3& axisInB, - const btVector3& inertiaInvA, - const btVector3& inertiaInvB) - : m_linearJointAxis(btVector3(btScalar(0.),btScalar(0.),btScalar(0.))) - , m_aJ(axisInA) - , m_bJ(-axisInB) - { - m_0MinvJt = inertiaInvA * m_aJ; - m_1MinvJt = inertiaInvB * m_bJ; - m_Adiag = m_0MinvJt.dot(m_aJ) + m_1MinvJt.dot(m_bJ); - - btAssert(m_Adiag > btScalar(0.0)); - } - - //constraint on one rigidbody - btJacobianEntry( - const btMatrix3x3& world2A, - const btVector3& rel_pos1,const btVector3& rel_pos2, - const btVector3& jointAxis, - const btVector3& inertiaInvA, - const btScalar massInvA) - :m_linearJointAxis(jointAxis) - { - m_aJ= world2A*(rel_pos1.cross(jointAxis)); - m_bJ = world2A*(rel_pos2.cross(-jointAxis)); - m_0MinvJt = inertiaInvA * m_aJ; - m_1MinvJt = btVector3(btScalar(0.),btScalar(0.),btScalar(0.)); - m_Adiag = massInvA + m_0MinvJt.dot(m_aJ); - - btAssert(m_Adiag > btScalar(0.0)); - } - - btScalar getDiagonal() const { return m_Adiag; } - - // for two constraints on the same rigidbody (for example vehicle friction) - btScalar getNonDiagonal(const btJacobianEntry& jacB, const btScalar massInvA) const - { - const btJacobianEntry& jacA = *this; - btScalar lin = massInvA * jacA.m_linearJointAxis.dot(jacB.m_linearJointAxis); - btScalar ang = jacA.m_0MinvJt.dot(jacB.m_aJ); - return lin + ang; - } - - - - // for two constraints on sharing two same rigidbodies (for example two contact points between two rigidbodies) - btScalar getNonDiagonal(const btJacobianEntry& jacB,const btScalar massInvA,const btScalar massInvB) const - { - const btJacobianEntry& jacA = *this; - btVector3 lin = jacA.m_linearJointAxis * jacB.m_linearJointAxis; - btVector3 ang0 = jacA.m_0MinvJt * jacB.m_aJ; - btVector3 ang1 = jacA.m_1MinvJt * jacB.m_bJ; - btVector3 lin0 = massInvA * lin ; - btVector3 lin1 = massInvB * lin; - btVector3 sum = ang0+ang1+lin0+lin1; - return sum[0]+sum[1]+sum[2]; - } - - btScalar getRelativeVelocity(const btVector3& linvelA,const btVector3& angvelA,const btVector3& linvelB,const btVector3& angvelB) - { - btVector3 linrel = linvelA - linvelB; - btVector3 angvela = angvelA * m_aJ; - btVector3 angvelb = angvelB * m_bJ; - linrel *= m_linearJointAxis; - angvela += angvelb; - angvela += linrel; - btScalar rel_vel2 = angvela[0]+angvela[1]+angvela[2]; - return rel_vel2 + SIMD_EPSILON; - } -//private: - - btVector3 m_linearJointAxis; - btVector3 m_aJ; - btVector3 m_bJ; - btVector3 m_0MinvJt; - btVector3 m_1MinvJt; - //Optimization: can be stored in the w/last component of one of the vectors - btScalar m_Adiag; - -}; - -#endif //BT_JACOBIAN_ENTRY_H diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btNNCGConstraintSolver.cpp b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btNNCGConstraintSolver.cpp deleted file mode 100644 index f3979be358..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btNNCGConstraintSolver.cpp +++ /dev/null @@ -1,374 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#include "btNNCGConstraintSolver.h" - - - - - - -btScalar btNNCGConstraintSolver::solveGroupCacheFriendlySetup(btCollisionObject** bodies,int numBodies,btPersistentManifold** manifoldPtr, int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* debugDrawer) -{ - btScalar val = btSequentialImpulseConstraintSolver::solveGroupCacheFriendlySetup( bodies,numBodies,manifoldPtr, numManifolds, constraints,numConstraints,infoGlobal,debugDrawer); - - m_pNC.resizeNoInitialize(m_tmpSolverNonContactConstraintPool.size()); - m_pC.resizeNoInitialize(m_tmpSolverContactConstraintPool.size()); - m_pCF.resizeNoInitialize(m_tmpSolverContactFrictionConstraintPool.size()); - m_pCRF.resizeNoInitialize(m_tmpSolverContactRollingFrictionConstraintPool.size()); - - m_deltafNC.resizeNoInitialize(m_tmpSolverNonContactConstraintPool.size()); - m_deltafC.resizeNoInitialize(m_tmpSolverContactConstraintPool.size()); - m_deltafCF.resizeNoInitialize(m_tmpSolverContactFrictionConstraintPool.size()); - m_deltafCRF.resizeNoInitialize(m_tmpSolverContactRollingFrictionConstraintPool.size()); - - return val; -} - -btScalar btNNCGConstraintSolver::solveSingleIteration(int iteration, btCollisionObject** /*bodies */,int /*numBodies*/,btPersistentManifold** /*manifoldPtr*/, int /*numManifolds*/,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* /*debugDrawer*/) -{ - - int numNonContactPool = m_tmpSolverNonContactConstraintPool.size(); - int numConstraintPool = m_tmpSolverContactConstraintPool.size(); - int numFrictionPool = m_tmpSolverContactFrictionConstraintPool.size(); - - if (infoGlobal.m_solverMode & SOLVER_RANDMIZE_ORDER) - { - if (1) // uncomment this for a bit less random ((iteration & 7) == 0) - { - - for (int j=0; j<numNonContactPool; ++j) { - int tmp = m_orderNonContactConstraintPool[j]; - int swapi = btRandInt2(j+1); - m_orderNonContactConstraintPool[j] = m_orderNonContactConstraintPool[swapi]; - m_orderNonContactConstraintPool[swapi] = tmp; - } - - //contact/friction constraints are not solved more than - if (iteration< infoGlobal.m_numIterations) - { - for (int j=0; j<numConstraintPool; ++j) { - int tmp = m_orderTmpConstraintPool[j]; - int swapi = btRandInt2(j+1); - m_orderTmpConstraintPool[j] = m_orderTmpConstraintPool[swapi]; - m_orderTmpConstraintPool[swapi] = tmp; - } - - for (int j=0; j<numFrictionPool; ++j) { - int tmp = m_orderFrictionConstraintPool[j]; - int swapi = btRandInt2(j+1); - m_orderFrictionConstraintPool[j] = m_orderFrictionConstraintPool[swapi]; - m_orderFrictionConstraintPool[swapi] = tmp; - } - } - } - } - - - btScalar deltaflengthsqr = 0; - { - for (int j=0;j<m_tmpSolverNonContactConstraintPool.size();j++) - { - btSolverConstraint& constraint = m_tmpSolverNonContactConstraintPool[m_orderNonContactConstraintPool[j]]; - if (iteration < constraint.m_overrideNumSolverIterations) - { - btScalar deltaf = resolveSingleConstraintRowGeneric(m_tmpSolverBodyPool[constraint.m_solverBodyIdA],m_tmpSolverBodyPool[constraint.m_solverBodyIdB],constraint); - m_deltafNC[j] = deltaf; - deltaflengthsqr += deltaf * deltaf; - } - } - } - - - if (m_onlyForNoneContact) - { - if (iteration==0) - { - for (int j=0;j<m_tmpSolverNonContactConstraintPool.size();j++) m_pNC[j] = m_deltafNC[j]; - } else { - // deltaflengthsqrprev can be 0 only if the solver solved the problem exactly in the previous iteration. In this case we should have quit, but mainly for debug reason with this 'hack' it is now allowed to continue the calculation - btScalar beta = m_deltafLengthSqrPrev>0 ? deltaflengthsqr / m_deltafLengthSqrPrev : 2; - if (beta>1) - { - for (int j=0;j<m_tmpSolverNonContactConstraintPool.size();j++) m_pNC[j] = 0; - } else - { - for (int j=0;j<m_tmpSolverNonContactConstraintPool.size();j++) - { - btSolverConstraint& constraint = m_tmpSolverNonContactConstraintPool[m_orderNonContactConstraintPool[j]]; - if (iteration < constraint.m_overrideNumSolverIterations) - { - btScalar additionaldeltaimpulse = beta * m_pNC[j]; - constraint.m_appliedImpulse = btScalar(constraint.m_appliedImpulse) + additionaldeltaimpulse; - m_pNC[j] = beta * m_pNC[j] + m_deltafNC[j]; - btSolverBody& body1 = m_tmpSolverBodyPool[constraint.m_solverBodyIdA]; - btSolverBody& body2 = m_tmpSolverBodyPool[constraint.m_solverBodyIdB]; - const btSolverConstraint& c = constraint; - body1.internalApplyImpulse(c.m_contactNormal1*body1.internalGetInvMass(),c.m_angularComponentA,additionaldeltaimpulse); - body2.internalApplyImpulse(c.m_contactNormal2*body2.internalGetInvMass(),c.m_angularComponentB,additionaldeltaimpulse); - } - } - } - } - m_deltafLengthSqrPrev = deltaflengthsqr; - } - - - - { - - if (iteration< infoGlobal.m_numIterations) - { - for (int j=0;j<numConstraints;j++) - { - if (constraints[j]->isEnabled()) - { - int bodyAid = getOrInitSolverBody(constraints[j]->getRigidBodyA(),infoGlobal.m_timeStep); - int bodyBid = getOrInitSolverBody(constraints[j]->getRigidBodyB(),infoGlobal.m_timeStep); - btSolverBody& bodyA = m_tmpSolverBodyPool[bodyAid]; - btSolverBody& bodyB = m_tmpSolverBodyPool[bodyBid]; - constraints[j]->solveConstraintObsolete(bodyA,bodyB,infoGlobal.m_timeStep); - } - } - - ///solve all contact constraints - if (infoGlobal.m_solverMode & SOLVER_INTERLEAVE_CONTACT_AND_FRICTION_CONSTRAINTS) - { - int numPoolConstraints = m_tmpSolverContactConstraintPool.size(); - int multiplier = (infoGlobal.m_solverMode & SOLVER_USE_2_FRICTION_DIRECTIONS)? 2 : 1; - - for (int c=0;c<numPoolConstraints;c++) - { - btScalar totalImpulse =0; - - { - const btSolverConstraint& solveManifold = m_tmpSolverContactConstraintPool[m_orderTmpConstraintPool[c]]; - btScalar deltaf = resolveSingleConstraintRowLowerLimit(m_tmpSolverBodyPool[solveManifold.m_solverBodyIdA],m_tmpSolverBodyPool[solveManifold.m_solverBodyIdB],solveManifold); - m_deltafC[c] = deltaf; - deltaflengthsqr += deltaf*deltaf; - totalImpulse = solveManifold.m_appliedImpulse; - } - bool applyFriction = true; - if (applyFriction) - { - { - - btSolverConstraint& solveManifold = m_tmpSolverContactFrictionConstraintPool[m_orderFrictionConstraintPool[c*multiplier]]; - - if (totalImpulse>btScalar(0)) - { - solveManifold.m_lowerLimit = -(solveManifold.m_friction*totalImpulse); - solveManifold.m_upperLimit = solveManifold.m_friction*totalImpulse; - btScalar deltaf = resolveSingleConstraintRowGeneric(m_tmpSolverBodyPool[solveManifold.m_solverBodyIdA],m_tmpSolverBodyPool[solveManifold.m_solverBodyIdB],solveManifold); - m_deltafCF[c*multiplier] = deltaf; - deltaflengthsqr += deltaf*deltaf; - } else { - m_deltafCF[c*multiplier] = 0; - } - } - - if (infoGlobal.m_solverMode & SOLVER_USE_2_FRICTION_DIRECTIONS) - { - - btSolverConstraint& solveManifold = m_tmpSolverContactFrictionConstraintPool[m_orderFrictionConstraintPool[c*multiplier+1]]; - - if (totalImpulse>btScalar(0)) - { - solveManifold.m_lowerLimit = -(solveManifold.m_friction*totalImpulse); - solveManifold.m_upperLimit = solveManifold.m_friction*totalImpulse; - btScalar deltaf = resolveSingleConstraintRowGeneric(m_tmpSolverBodyPool[solveManifold.m_solverBodyIdA],m_tmpSolverBodyPool[solveManifold.m_solverBodyIdB],solveManifold); - m_deltafCF[c*multiplier+1] = deltaf; - deltaflengthsqr += deltaf*deltaf; - } else { - m_deltafCF[c*multiplier+1] = 0; - } - } - } - } - - } - else//SOLVER_INTERLEAVE_CONTACT_AND_FRICTION_CONSTRAINTS - { - //solve the friction constraints after all contact constraints, don't interleave them - int numPoolConstraints = m_tmpSolverContactConstraintPool.size(); - int j; - - for (j=0;j<numPoolConstraints;j++) - { - const btSolverConstraint& solveManifold = m_tmpSolverContactConstraintPool[m_orderTmpConstraintPool[j]]; - btScalar deltaf = resolveSingleConstraintRowLowerLimit(m_tmpSolverBodyPool[solveManifold.m_solverBodyIdA],m_tmpSolverBodyPool[solveManifold.m_solverBodyIdB],solveManifold); - m_deltafC[j] = deltaf; - deltaflengthsqr += deltaf*deltaf; - } - - - - ///solve all friction constraints - - int numFrictionPoolConstraints = m_tmpSolverContactFrictionConstraintPool.size(); - for (j=0;j<numFrictionPoolConstraints;j++) - { - btSolverConstraint& solveManifold = m_tmpSolverContactFrictionConstraintPool[m_orderFrictionConstraintPool[j]]; - btScalar totalImpulse = m_tmpSolverContactConstraintPool[solveManifold.m_frictionIndex].m_appliedImpulse; - - if (totalImpulse>btScalar(0)) - { - solveManifold.m_lowerLimit = -(solveManifold.m_friction*totalImpulse); - solveManifold.m_upperLimit = solveManifold.m_friction*totalImpulse; - - btScalar deltaf = resolveSingleConstraintRowGeneric(m_tmpSolverBodyPool[solveManifold.m_solverBodyIdA],m_tmpSolverBodyPool[solveManifold.m_solverBodyIdB],solveManifold); - m_deltafCF[j] = deltaf; - deltaflengthsqr += deltaf*deltaf; - } else { - m_deltafCF[j] = 0; - } - } - } - - { - int numRollingFrictionPoolConstraints = m_tmpSolverContactRollingFrictionConstraintPool.size(); - for (int j=0;j<numRollingFrictionPoolConstraints;j++) - { - - btSolverConstraint& rollingFrictionConstraint = m_tmpSolverContactRollingFrictionConstraintPool[j]; - btScalar totalImpulse = m_tmpSolverContactConstraintPool[rollingFrictionConstraint.m_frictionIndex].m_appliedImpulse; - if (totalImpulse>btScalar(0)) - { - btScalar rollingFrictionMagnitude = rollingFrictionConstraint.m_friction*totalImpulse; - if (rollingFrictionMagnitude>rollingFrictionConstraint.m_friction) - rollingFrictionMagnitude = rollingFrictionConstraint.m_friction; - - rollingFrictionConstraint.m_lowerLimit = -rollingFrictionMagnitude; - rollingFrictionConstraint.m_upperLimit = rollingFrictionMagnitude; - - btScalar deltaf = resolveSingleConstraintRowGeneric(m_tmpSolverBodyPool[rollingFrictionConstraint.m_solverBodyIdA],m_tmpSolverBodyPool[rollingFrictionConstraint.m_solverBodyIdB],rollingFrictionConstraint); - m_deltafCRF[j] = deltaf; - deltaflengthsqr += deltaf*deltaf; - } else { - m_deltafCRF[j] = 0; - } - } - } - - } - - - - } - - - - - if (!m_onlyForNoneContact) - { - if (iteration==0) - { - for (int j=0;j<m_tmpSolverNonContactConstraintPool.size();j++) m_pNC[j] = m_deltafNC[j]; - for (int j=0;j<m_tmpSolverContactConstraintPool.size();j++) m_pC[j] = m_deltafC[j]; - for (int j=0;j<m_tmpSolverContactFrictionConstraintPool.size();j++) m_pCF[j] = m_deltafCF[j]; - for (int j=0;j<m_tmpSolverContactRollingFrictionConstraintPool.size();j++) m_pCRF[j] = m_deltafCRF[j]; - } else - { - // deltaflengthsqrprev can be 0 only if the solver solved the problem exactly in the previous iteration. In this case we should have quit, but mainly for debug reason with this 'hack' it is now allowed to continue the calculation - btScalar beta = m_deltafLengthSqrPrev>0 ? deltaflengthsqr / m_deltafLengthSqrPrev : 2; - if (beta>1) { - for (int j=0;j<m_tmpSolverNonContactConstraintPool.size();j++) m_pNC[j] = 0; - for (int j=0;j<m_tmpSolverContactConstraintPool.size();j++) m_pC[j] = 0; - for (int j=0;j<m_tmpSolverContactFrictionConstraintPool.size();j++) m_pCF[j] = 0; - for (int j=0;j<m_tmpSolverContactRollingFrictionConstraintPool.size();j++) m_pCRF[j] = 0; - } else { - for (int j=0;j<m_tmpSolverNonContactConstraintPool.size();j++) - { - btSolverConstraint& constraint = m_tmpSolverNonContactConstraintPool[m_orderNonContactConstraintPool[j]]; - if (iteration < constraint.m_overrideNumSolverIterations) { - btScalar additionaldeltaimpulse = beta * m_pNC[j]; - constraint.m_appliedImpulse = btScalar(constraint.m_appliedImpulse) + additionaldeltaimpulse; - m_pNC[j] = beta * m_pNC[j] + m_deltafNC[j]; - btSolverBody& body1 = m_tmpSolverBodyPool[constraint.m_solverBodyIdA]; - btSolverBody& body2 = m_tmpSolverBodyPool[constraint.m_solverBodyIdB]; - const btSolverConstraint& c = constraint; - body1.internalApplyImpulse(c.m_contactNormal1*body1.internalGetInvMass(),c.m_angularComponentA,additionaldeltaimpulse); - body2.internalApplyImpulse(c.m_contactNormal2*body2.internalGetInvMass(),c.m_angularComponentB,additionaldeltaimpulse); - } - } - for (int j=0;j<m_tmpSolverContactConstraintPool.size();j++) - { - btSolverConstraint& constraint = m_tmpSolverContactConstraintPool[m_orderTmpConstraintPool[j]]; - if (iteration< infoGlobal.m_numIterations) { - btScalar additionaldeltaimpulse = beta * m_pC[j]; - constraint.m_appliedImpulse = btScalar(constraint.m_appliedImpulse) + additionaldeltaimpulse; - m_pC[j] = beta * m_pC[j] + m_deltafC[j]; - btSolverBody& body1 = m_tmpSolverBodyPool[constraint.m_solverBodyIdA]; - btSolverBody& body2 = m_tmpSolverBodyPool[constraint.m_solverBodyIdB]; - const btSolverConstraint& c = constraint; - body1.internalApplyImpulse(c.m_contactNormal1*body1.internalGetInvMass(),c.m_angularComponentA,additionaldeltaimpulse); - body2.internalApplyImpulse(c.m_contactNormal2*body2.internalGetInvMass(),c.m_angularComponentB,additionaldeltaimpulse); - } - } - for (int j=0;j<m_tmpSolverContactFrictionConstraintPool.size();j++) - { - btSolverConstraint& constraint = m_tmpSolverContactFrictionConstraintPool[m_orderFrictionConstraintPool[j]]; - if (iteration< infoGlobal.m_numIterations) { - btScalar additionaldeltaimpulse = beta * m_pCF[j]; - constraint.m_appliedImpulse = btScalar(constraint.m_appliedImpulse) + additionaldeltaimpulse; - m_pCF[j] = beta * m_pCF[j] + m_deltafCF[j]; - btSolverBody& body1 = m_tmpSolverBodyPool[constraint.m_solverBodyIdA]; - btSolverBody& body2 = m_tmpSolverBodyPool[constraint.m_solverBodyIdB]; - const btSolverConstraint& c = constraint; - body1.internalApplyImpulse(c.m_contactNormal1*body1.internalGetInvMass(),c.m_angularComponentA,additionaldeltaimpulse); - body2.internalApplyImpulse(c.m_contactNormal2*body2.internalGetInvMass(),c.m_angularComponentB,additionaldeltaimpulse); - } - } - { - for (int j=0;j<m_tmpSolverContactRollingFrictionConstraintPool.size();j++) - { - btSolverConstraint& constraint = m_tmpSolverContactRollingFrictionConstraintPool[j]; - if (iteration< infoGlobal.m_numIterations) { - btScalar additionaldeltaimpulse = beta * m_pCRF[j]; - constraint.m_appliedImpulse = btScalar(constraint.m_appliedImpulse) + additionaldeltaimpulse; - m_pCRF[j] = beta * m_pCRF[j] + m_deltafCRF[j]; - btSolverBody& body1 = m_tmpSolverBodyPool[constraint.m_solverBodyIdA]; - btSolverBody& body2 = m_tmpSolverBodyPool[constraint.m_solverBodyIdB]; - const btSolverConstraint& c = constraint; - body1.internalApplyImpulse(c.m_contactNormal1*body1.internalGetInvMass(),c.m_angularComponentA,additionaldeltaimpulse); - body2.internalApplyImpulse(c.m_contactNormal2*body2.internalGetInvMass(),c.m_angularComponentB,additionaldeltaimpulse); - } - } - } - } - } - m_deltafLengthSqrPrev = deltaflengthsqr; - } - - return deltaflengthsqr; -} - -btScalar btNNCGConstraintSolver::solveGroupCacheFriendlyFinish(btCollisionObject** bodies,int numBodies,const btContactSolverInfo& infoGlobal) -{ - m_pNC.resizeNoInitialize(0); - m_pC.resizeNoInitialize(0); - m_pCF.resizeNoInitialize(0); - m_pCRF.resizeNoInitialize(0); - - m_deltafNC.resizeNoInitialize(0); - m_deltafC.resizeNoInitialize(0); - m_deltafCF.resizeNoInitialize(0); - m_deltafCRF.resizeNoInitialize(0); - - return btSequentialImpulseConstraintSolver::solveGroupCacheFriendlyFinish(bodies, numBodies, infoGlobal); -} - - - diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btNNCGConstraintSolver.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btNNCGConstraintSolver.h deleted file mode 100644 index a300929cd5..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btNNCGConstraintSolver.h +++ /dev/null @@ -1,64 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_NNCG_CONSTRAINT_SOLVER_H -#define BT_NNCG_CONSTRAINT_SOLVER_H - -#include "btSequentialImpulseConstraintSolver.h" - -ATTRIBUTE_ALIGNED16(class) btNNCGConstraintSolver : public btSequentialImpulseConstraintSolver -{ -protected: - - btScalar m_deltafLengthSqrPrev; - - btAlignedObjectArray<btScalar> m_pNC; // p for None Contact constraints - btAlignedObjectArray<btScalar> m_pC; // p for Contact constraints - btAlignedObjectArray<btScalar> m_pCF; // p for ContactFriction constraints - btAlignedObjectArray<btScalar> m_pCRF; // p for ContactRollingFriction constraints - - //These are recalculated in every iterations. We just keep these to prevent reallocation in each iteration. - btAlignedObjectArray<btScalar> m_deltafNC; // deltaf for NoneContact constraints - btAlignedObjectArray<btScalar> m_deltafC; // deltaf for Contact constraints - btAlignedObjectArray<btScalar> m_deltafCF; // deltaf for ContactFriction constraints - btAlignedObjectArray<btScalar> m_deltafCRF; // deltaf for ContactRollingFriction constraints - - -protected: - - virtual btScalar solveGroupCacheFriendlyFinish(btCollisionObject** bodies,int numBodies,const btContactSolverInfo& infoGlobal); - virtual btScalar solveSingleIteration(int iteration, btCollisionObject** bodies ,int numBodies,btPersistentManifold** manifoldPtr, int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* debugDrawer); - - virtual btScalar solveGroupCacheFriendlySetup(btCollisionObject** bodies,int numBodies,btPersistentManifold** manifoldPtr, int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* debugDrawer); - -public: - - BT_DECLARE_ALIGNED_ALLOCATOR(); - - btNNCGConstraintSolver() : btSequentialImpulseConstraintSolver(), m_onlyForNoneContact(false) {} - - virtual btConstraintSolverType getSolverType() const - { - return BT_NNCG_SOLVER; - } - - bool m_onlyForNoneContact; -}; - - - - -#endif //BT_NNCG_CONSTRAINT_SOLVER_H - diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btPoint2PointConstraint.cpp b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btPoint2PointConstraint.cpp deleted file mode 100644 index 3c0430b903..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btPoint2PointConstraint.cpp +++ /dev/null @@ -1,229 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - - -#include "btPoint2PointConstraint.h" -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include <new> - - - - - -btPoint2PointConstraint::btPoint2PointConstraint(btRigidBody& rbA,btRigidBody& rbB, const btVector3& pivotInA,const btVector3& pivotInB) -:btTypedConstraint(POINT2POINT_CONSTRAINT_TYPE,rbA,rbB),m_pivotInA(pivotInA),m_pivotInB(pivotInB), -m_flags(0), -m_useSolveConstraintObsolete(false) -{ - -} - - -btPoint2PointConstraint::btPoint2PointConstraint(btRigidBody& rbA,const btVector3& pivotInA) -:btTypedConstraint(POINT2POINT_CONSTRAINT_TYPE,rbA),m_pivotInA(pivotInA),m_pivotInB(rbA.getCenterOfMassTransform()(pivotInA)), -m_flags(0), -m_useSolveConstraintObsolete(false) -{ - -} - -void btPoint2PointConstraint::buildJacobian() -{ - - ///we need it for both methods - { - m_appliedImpulse = btScalar(0.); - - btVector3 normal(0,0,0); - - for (int i=0;i<3;i++) - { - normal[i] = 1; - new (&m_jac[i]) btJacobianEntry( - m_rbA.getCenterOfMassTransform().getBasis().transpose(), - m_rbB.getCenterOfMassTransform().getBasis().transpose(), - m_rbA.getCenterOfMassTransform()*m_pivotInA - m_rbA.getCenterOfMassPosition(), - m_rbB.getCenterOfMassTransform()*m_pivotInB - m_rbB.getCenterOfMassPosition(), - normal, - m_rbA.getInvInertiaDiagLocal(), - m_rbA.getInvMass(), - m_rbB.getInvInertiaDiagLocal(), - m_rbB.getInvMass()); - normal[i] = 0; - } - } - - -} - -void btPoint2PointConstraint::getInfo1 (btConstraintInfo1* info) -{ - getInfo1NonVirtual(info); -} - -void btPoint2PointConstraint::getInfo1NonVirtual (btConstraintInfo1* info) -{ - if (m_useSolveConstraintObsolete) - { - info->m_numConstraintRows = 0; - info->nub = 0; - } else - { - info->m_numConstraintRows = 3; - info->nub = 3; - } -} - - - - -void btPoint2PointConstraint::getInfo2 (btConstraintInfo2* info) -{ - getInfo2NonVirtual(info, m_rbA.getCenterOfMassTransform(),m_rbB.getCenterOfMassTransform()); -} - -void btPoint2PointConstraint::getInfo2NonVirtual (btConstraintInfo2* info, const btTransform& body0_trans, const btTransform& body1_trans) -{ - btAssert(!m_useSolveConstraintObsolete); - - //retrieve matrices - - // anchor points in global coordinates with respect to body PORs. - - // set jacobian - info->m_J1linearAxis[0] = 1; - info->m_J1linearAxis[info->rowskip+1] = 1; - info->m_J1linearAxis[2*info->rowskip+2] = 1; - - btVector3 a1 = body0_trans.getBasis()*getPivotInA(); - { - btVector3* angular0 = (btVector3*)(info->m_J1angularAxis); - btVector3* angular1 = (btVector3*)(info->m_J1angularAxis+info->rowskip); - btVector3* angular2 = (btVector3*)(info->m_J1angularAxis+2*info->rowskip); - btVector3 a1neg = -a1; - a1neg.getSkewSymmetricMatrix(angular0,angular1,angular2); - } - - info->m_J2linearAxis[0] = -1; - info->m_J2linearAxis[info->rowskip+1] = -1; - info->m_J2linearAxis[2*info->rowskip+2] = -1; - - btVector3 a2 = body1_trans.getBasis()*getPivotInB(); - - { - // btVector3 a2n = -a2; - btVector3* angular0 = (btVector3*)(info->m_J2angularAxis); - btVector3* angular1 = (btVector3*)(info->m_J2angularAxis+info->rowskip); - btVector3* angular2 = (btVector3*)(info->m_J2angularAxis+2*info->rowskip); - a2.getSkewSymmetricMatrix(angular0,angular1,angular2); - } - - - - // set right hand side - btScalar currERP = (m_flags & BT_P2P_FLAGS_ERP) ? m_erp : info->erp; - btScalar k = info->fps * currERP; - int j; - for (j=0; j<3; j++) - { - info->m_constraintError[j*info->rowskip] = k * (a2[j] + body1_trans.getOrigin()[j] - a1[j] - body0_trans.getOrigin()[j]); - //printf("info->m_constraintError[%d]=%f\n",j,info->m_constraintError[j]); - } - if(m_flags & BT_P2P_FLAGS_CFM) - { - for (j=0; j<3; j++) - { - info->cfm[j*info->rowskip] = m_cfm; - } - } - - btScalar impulseClamp = m_setting.m_impulseClamp;// - for (j=0; j<3; j++) - { - if (m_setting.m_impulseClamp > 0) - { - info->m_lowerLimit[j*info->rowskip] = -impulseClamp; - info->m_upperLimit[j*info->rowskip] = impulseClamp; - } - } - info->m_damping = m_setting.m_damping; - -} - - - -void btPoint2PointConstraint::updateRHS(btScalar timeStep) -{ - (void)timeStep; - -} - -///override the default global value of a parameter (such as ERP or CFM), optionally provide the axis (0..5). -///If no axis is provided, it uses the default axis for this constraint. -void btPoint2PointConstraint::setParam(int num, btScalar value, int axis) -{ - if(axis != -1) - { - btAssertConstrParams(0); - } - else - { - switch(num) - { - case BT_CONSTRAINT_ERP : - case BT_CONSTRAINT_STOP_ERP : - m_erp = value; - m_flags |= BT_P2P_FLAGS_ERP; - break; - case BT_CONSTRAINT_CFM : - case BT_CONSTRAINT_STOP_CFM : - m_cfm = value; - m_flags |= BT_P2P_FLAGS_CFM; - break; - default: - btAssertConstrParams(0); - } - } -} - -///return the local value of parameter -btScalar btPoint2PointConstraint::getParam(int num, int axis) const -{ - btScalar retVal(SIMD_INFINITY); - if(axis != -1) - { - btAssertConstrParams(0); - } - else - { - switch(num) - { - case BT_CONSTRAINT_ERP : - case BT_CONSTRAINT_STOP_ERP : - btAssertConstrParams(m_flags & BT_P2P_FLAGS_ERP); - retVal = m_erp; - break; - case BT_CONSTRAINT_CFM : - case BT_CONSTRAINT_STOP_CFM : - btAssertConstrParams(m_flags & BT_P2P_FLAGS_CFM); - retVal = m_cfm; - break; - default: - btAssertConstrParams(0); - } - } - return retVal; -} - diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btPoint2PointConstraint.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btPoint2PointConstraint.h deleted file mode 100644 index 8fa03d719d..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btPoint2PointConstraint.h +++ /dev/null @@ -1,180 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_POINT2POINTCONSTRAINT_H -#define BT_POINT2POINTCONSTRAINT_H - -#include "LinearMath/btVector3.h" -#include "btJacobianEntry.h" -#include "btTypedConstraint.h" - -class btRigidBody; - - -#ifdef BT_USE_DOUBLE_PRECISION -#define btPoint2PointConstraintData2 btPoint2PointConstraintDoubleData2 -#define btPoint2PointConstraintDataName "btPoint2PointConstraintDoubleData2" -#else -#define btPoint2PointConstraintData2 btPoint2PointConstraintFloatData -#define btPoint2PointConstraintDataName "btPoint2PointConstraintFloatData" -#endif //BT_USE_DOUBLE_PRECISION - -struct btConstraintSetting -{ - btConstraintSetting() : - m_tau(btScalar(0.3)), - m_damping(btScalar(1.)), - m_impulseClamp(btScalar(0.)) - { - } - btScalar m_tau; - btScalar m_damping; - btScalar m_impulseClamp; -}; - -enum btPoint2PointFlags -{ - BT_P2P_FLAGS_ERP = 1, - BT_P2P_FLAGS_CFM = 2 -}; - -/// point to point constraint between two rigidbodies each with a pivotpoint that descibes the 'ballsocket' location in local space -ATTRIBUTE_ALIGNED16(class) btPoint2PointConstraint : public btTypedConstraint -{ -#ifdef IN_PARALLELL_SOLVER -public: -#endif - btJacobianEntry m_jac[3]; //3 orthogonal linear constraints - - btVector3 m_pivotInA; - btVector3 m_pivotInB; - - int m_flags; - btScalar m_erp; - btScalar m_cfm; - -public: - - BT_DECLARE_ALIGNED_ALLOCATOR(); - - ///for backwards compatibility during the transition to 'getInfo/getInfo2' - bool m_useSolveConstraintObsolete; - - btConstraintSetting m_setting; - - btPoint2PointConstraint(btRigidBody& rbA,btRigidBody& rbB, const btVector3& pivotInA,const btVector3& pivotInB); - - btPoint2PointConstraint(btRigidBody& rbA,const btVector3& pivotInA); - - - virtual void buildJacobian(); - - virtual void getInfo1 (btConstraintInfo1* info); - - void getInfo1NonVirtual (btConstraintInfo1* info); - - virtual void getInfo2 (btConstraintInfo2* info); - - void getInfo2NonVirtual (btConstraintInfo2* info, const btTransform& body0_trans, const btTransform& body1_trans); - - void updateRHS(btScalar timeStep); - - void setPivotA(const btVector3& pivotA) - { - m_pivotInA = pivotA; - } - - void setPivotB(const btVector3& pivotB) - { - m_pivotInB = pivotB; - } - - const btVector3& getPivotInA() const - { - return m_pivotInA; - } - - const btVector3& getPivotInB() const - { - return m_pivotInB; - } - - ///override the default global value of a parameter (such as ERP or CFM), optionally provide the axis (0..5). - ///If no axis is provided, it uses the default axis for this constraint. - virtual void setParam(int num, btScalar value, int axis = -1); - ///return the local value of parameter - virtual btScalar getParam(int num, int axis = -1) const; - - virtual int getFlags() const - { - return m_flags; - } - - virtual int calculateSerializeBufferSize() const; - - ///fills the dataBuffer and returns the struct name (and 0 on failure) - virtual const char* serialize(void* dataBuffer, btSerializer* serializer) const; - - -}; - -///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64 -struct btPoint2PointConstraintFloatData -{ - btTypedConstraintData m_typeConstraintData; - btVector3FloatData m_pivotInA; - btVector3FloatData m_pivotInB; -}; - -///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64 -struct btPoint2PointConstraintDoubleData2 -{ - btTypedConstraintDoubleData m_typeConstraintData; - btVector3DoubleData m_pivotInA; - btVector3DoubleData m_pivotInB; -}; - -#ifdef BT_BACKWARDS_COMPATIBLE_SERIALIZATION -///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64 -///this structure is not used, except for loading pre-2.82 .bullet files -///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64 -struct btPoint2PointConstraintDoubleData -{ - btTypedConstraintData m_typeConstraintData; - btVector3DoubleData m_pivotInA; - btVector3DoubleData m_pivotInB; -}; -#endif //BT_BACKWARDS_COMPATIBLE_SERIALIZATION - - -SIMD_FORCE_INLINE int btPoint2PointConstraint::calculateSerializeBufferSize() const -{ - return sizeof(btPoint2PointConstraintData2); - -} - - ///fills the dataBuffer and returns the struct name (and 0 on failure) -SIMD_FORCE_INLINE const char* btPoint2PointConstraint::serialize(void* dataBuffer, btSerializer* serializer) const -{ - btPoint2PointConstraintData2* p2pData = (btPoint2PointConstraintData2*)dataBuffer; - - btTypedConstraint::serialize(&p2pData->m_typeConstraintData,serializer); - m_pivotInA.serialize(p2pData->m_pivotInA); - m_pivotInB.serialize(p2pData->m_pivotInB); - - return btPoint2PointConstraintDataName; -} - -#endif //BT_POINT2POINTCONSTRAINT_H diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSequentialImpulseConstraintSolver.cpp b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSequentialImpulseConstraintSolver.cpp deleted file mode 100644 index b0d57a3e87..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSequentialImpulseConstraintSolver.cpp +++ /dev/null @@ -1,1973 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -//#define COMPUTE_IMPULSE_DENOM 1 -//#define BT_ADDITIONAL_DEBUG - -//It is not necessary (redundant) to refresh contact manifolds, this refresh has been moved to the collision algorithms. - -#include "btSequentialImpulseConstraintSolver.h" -#include "BulletCollision/NarrowPhaseCollision/btPersistentManifold.h" - -#include "LinearMath/btIDebugDraw.h" -#include "LinearMath/btCpuFeatureUtility.h" - -//#include "btJacobianEntry.h" -#include "LinearMath/btMinMax.h" -#include "BulletDynamics/ConstraintSolver/btTypedConstraint.h" -#include <new> -#include "LinearMath/btStackAlloc.h" -#include "LinearMath/btQuickprof.h" -//#include "btSolverBody.h" -//#include "btSolverConstraint.h" -#include "LinearMath/btAlignedObjectArray.h" -#include <string.h> //for memset - -int gNumSplitImpulseRecoveries = 0; - -#include "BulletDynamics/Dynamics/btRigidBody.h" - -//#define VERBOSE_RESIDUAL_PRINTF 1 -///This is the scalar reference implementation of solving a single constraint row, the innerloop of the Projected Gauss Seidel/Sequential Impulse constraint solver -///Below are optional SSE2 and SSE4/FMA3 versions. We assume most hardware has SSE2. For SSE4/FMA3 we perform a CPU feature check. -static btSimdScalar gResolveSingleConstraintRowGeneric_scalar_reference(btSolverBody& body1, btSolverBody& body2, const btSolverConstraint& c) -{ - btScalar deltaImpulse = c.m_rhs - btScalar(c.m_appliedImpulse)*c.m_cfm; - const btScalar deltaVel1Dotn = c.m_contactNormal1.dot(body1.internalGetDeltaLinearVelocity()) + c.m_relpos1CrossNormal.dot(body1.internalGetDeltaAngularVelocity()); - const btScalar deltaVel2Dotn = c.m_contactNormal2.dot(body2.internalGetDeltaLinearVelocity()) + c.m_relpos2CrossNormal.dot(body2.internalGetDeltaAngularVelocity()); - - // const btScalar delta_rel_vel = deltaVel1Dotn-deltaVel2Dotn; - deltaImpulse -= deltaVel1Dotn*c.m_jacDiagABInv; - deltaImpulse -= deltaVel2Dotn*c.m_jacDiagABInv; - - const btScalar sum = btScalar(c.m_appliedImpulse) + deltaImpulse; - if (sum < c.m_lowerLimit) - { - deltaImpulse = c.m_lowerLimit - c.m_appliedImpulse; - c.m_appliedImpulse = c.m_lowerLimit; - } - else if (sum > c.m_upperLimit) - { - deltaImpulse = c.m_upperLimit - c.m_appliedImpulse; - c.m_appliedImpulse = c.m_upperLimit; - } - else - { - c.m_appliedImpulse = sum; - } - - body1.internalApplyImpulse(c.m_contactNormal1*body1.internalGetInvMass(), c.m_angularComponentA, deltaImpulse); - body2.internalApplyImpulse(c.m_contactNormal2*body2.internalGetInvMass(), c.m_angularComponentB, deltaImpulse); - - return deltaImpulse; -} - - -static btSimdScalar gResolveSingleConstraintRowLowerLimit_scalar_reference(btSolverBody& body1, btSolverBody& body2, const btSolverConstraint& c) -{ - btScalar deltaImpulse = c.m_rhs - btScalar(c.m_appliedImpulse)*c.m_cfm; - const btScalar deltaVel1Dotn = c.m_contactNormal1.dot(body1.internalGetDeltaLinearVelocity()) + c.m_relpos1CrossNormal.dot(body1.internalGetDeltaAngularVelocity()); - const btScalar deltaVel2Dotn = c.m_contactNormal2.dot(body2.internalGetDeltaLinearVelocity()) + c.m_relpos2CrossNormal.dot(body2.internalGetDeltaAngularVelocity()); - - deltaImpulse -= deltaVel1Dotn*c.m_jacDiagABInv; - deltaImpulse -= deltaVel2Dotn*c.m_jacDiagABInv; - const btScalar sum = btScalar(c.m_appliedImpulse) + deltaImpulse; - if (sum < c.m_lowerLimit) - { - deltaImpulse = c.m_lowerLimit - c.m_appliedImpulse; - c.m_appliedImpulse = c.m_lowerLimit; - } - else - { - c.m_appliedImpulse = sum; - } - body1.internalApplyImpulse(c.m_contactNormal1*body1.internalGetInvMass(), c.m_angularComponentA, deltaImpulse); - body2.internalApplyImpulse(c.m_contactNormal2*body2.internalGetInvMass(), c.m_angularComponentB, deltaImpulse); - - return deltaImpulse; -} - - - -#ifdef USE_SIMD -#include <emmintrin.h> - - -#define btVecSplat(x, e) _mm_shuffle_ps(x, x, _MM_SHUFFLE(e,e,e,e)) -static inline __m128 btSimdDot3( __m128 vec0, __m128 vec1 ) -{ - __m128 result = _mm_mul_ps( vec0, vec1); - return _mm_add_ps( btVecSplat( result, 0 ), _mm_add_ps( btVecSplat( result, 1 ), btVecSplat( result, 2 ) ) ); -} - -#if defined (BT_ALLOW_SSE4) -#include <intrin.h> - -#define USE_FMA 1 -#define USE_FMA3_INSTEAD_FMA4 1 -#define USE_SSE4_DOT 1 - -#define SSE4_DP(a, b) _mm_dp_ps(a, b, 0x7f) -#define SSE4_DP_FP(a, b) _mm_cvtss_f32(_mm_dp_ps(a, b, 0x7f)) - -#if USE_SSE4_DOT -#define DOT_PRODUCT(a, b) SSE4_DP(a, b) -#else -#define DOT_PRODUCT(a, b) btSimdDot3(a, b) -#endif - -#if USE_FMA -#if USE_FMA3_INSTEAD_FMA4 -// a*b + c -#define FMADD(a, b, c) _mm_fmadd_ps(a, b, c) -// -(a*b) + c -#define FMNADD(a, b, c) _mm_fnmadd_ps(a, b, c) -#else // USE_FMA3 -// a*b + c -#define FMADD(a, b, c) _mm_macc_ps(a, b, c) -// -(a*b) + c -#define FMNADD(a, b, c) _mm_nmacc_ps(a, b, c) -#endif -#else // USE_FMA -// c + a*b -#define FMADD(a, b, c) _mm_add_ps(c, _mm_mul_ps(a, b)) -// c - a*b -#define FMNADD(a, b, c) _mm_sub_ps(c, _mm_mul_ps(a, b)) -#endif -#endif - -// Project Gauss Seidel or the equivalent Sequential Impulse -static btSimdScalar gResolveSingleConstraintRowGeneric_sse2(btSolverBody& body1, btSolverBody& body2, const btSolverConstraint& c) -{ - __m128 cpAppliedImp = _mm_set1_ps(c.m_appliedImpulse); - __m128 lowerLimit1 = _mm_set1_ps(c.m_lowerLimit); - __m128 upperLimit1 = _mm_set1_ps(c.m_upperLimit); - btSimdScalar deltaImpulse = _mm_sub_ps(_mm_set1_ps(c.m_rhs), _mm_mul_ps(_mm_set1_ps(c.m_appliedImpulse), _mm_set1_ps(c.m_cfm))); - __m128 deltaVel1Dotn = _mm_add_ps(btSimdDot3(c.m_contactNormal1.mVec128, body1.internalGetDeltaLinearVelocity().mVec128), btSimdDot3(c.m_relpos1CrossNormal.mVec128, body1.internalGetDeltaAngularVelocity().mVec128)); - __m128 deltaVel2Dotn = _mm_add_ps(btSimdDot3(c.m_contactNormal2.mVec128, body2.internalGetDeltaLinearVelocity().mVec128), btSimdDot3(c.m_relpos2CrossNormal.mVec128, body2.internalGetDeltaAngularVelocity().mVec128)); - deltaImpulse = _mm_sub_ps(deltaImpulse, _mm_mul_ps(deltaVel1Dotn, _mm_set1_ps(c.m_jacDiagABInv))); - deltaImpulse = _mm_sub_ps(deltaImpulse, _mm_mul_ps(deltaVel2Dotn, _mm_set1_ps(c.m_jacDiagABInv))); - btSimdScalar sum = _mm_add_ps(cpAppliedImp, deltaImpulse); - btSimdScalar resultLowerLess, resultUpperLess; - resultLowerLess = _mm_cmplt_ps(sum, lowerLimit1); - resultUpperLess = _mm_cmplt_ps(sum, upperLimit1); - __m128 lowMinApplied = _mm_sub_ps(lowerLimit1, cpAppliedImp); - deltaImpulse = _mm_or_ps(_mm_and_ps(resultLowerLess, lowMinApplied), _mm_andnot_ps(resultLowerLess, deltaImpulse)); - c.m_appliedImpulse = _mm_or_ps(_mm_and_ps(resultLowerLess, lowerLimit1), _mm_andnot_ps(resultLowerLess, sum)); - __m128 upperMinApplied = _mm_sub_ps(upperLimit1, cpAppliedImp); - deltaImpulse = _mm_or_ps(_mm_and_ps(resultUpperLess, deltaImpulse), _mm_andnot_ps(resultUpperLess, upperMinApplied)); - c.m_appliedImpulse = _mm_or_ps(_mm_and_ps(resultUpperLess, c.m_appliedImpulse), _mm_andnot_ps(resultUpperLess, upperLimit1)); - __m128 linearComponentA = _mm_mul_ps(c.m_contactNormal1.mVec128, body1.internalGetInvMass().mVec128); - __m128 linearComponentB = _mm_mul_ps((c.m_contactNormal2).mVec128, body2.internalGetInvMass().mVec128); - __m128 impulseMagnitude = deltaImpulse; - body1.internalGetDeltaLinearVelocity().mVec128 = _mm_add_ps(body1.internalGetDeltaLinearVelocity().mVec128, _mm_mul_ps(linearComponentA, impulseMagnitude)); - body1.internalGetDeltaAngularVelocity().mVec128 = _mm_add_ps(body1.internalGetDeltaAngularVelocity().mVec128, _mm_mul_ps(c.m_angularComponentA.mVec128, impulseMagnitude)); - body2.internalGetDeltaLinearVelocity().mVec128 = _mm_add_ps(body2.internalGetDeltaLinearVelocity().mVec128, _mm_mul_ps(linearComponentB, impulseMagnitude)); - body2.internalGetDeltaAngularVelocity().mVec128 = _mm_add_ps(body2.internalGetDeltaAngularVelocity().mVec128, _mm_mul_ps(c.m_angularComponentB.mVec128, impulseMagnitude)); - return deltaImpulse; -} - - -// Enhanced version of gResolveSingleConstraintRowGeneric_sse2 with SSE4.1 and FMA3 -static btSimdScalar gResolveSingleConstraintRowGeneric_sse4_1_fma3(btSolverBody& body1, btSolverBody& body2, const btSolverConstraint& c) -{ -#if defined (BT_ALLOW_SSE4) - __m128 tmp = _mm_set_ps1(c.m_jacDiagABInv); - __m128 deltaImpulse = _mm_set_ps1(c.m_rhs - btScalar(c.m_appliedImpulse)*c.m_cfm); - const __m128 lowerLimit = _mm_set_ps1(c.m_lowerLimit); - const __m128 upperLimit = _mm_set_ps1(c.m_upperLimit); - const __m128 deltaVel1Dotn = _mm_add_ps(DOT_PRODUCT(c.m_contactNormal1.mVec128, body1.internalGetDeltaLinearVelocity().mVec128), DOT_PRODUCT(c.m_relpos1CrossNormal.mVec128, body1.internalGetDeltaAngularVelocity().mVec128)); - const __m128 deltaVel2Dotn = _mm_add_ps(DOT_PRODUCT(c.m_contactNormal2.mVec128, body2.internalGetDeltaLinearVelocity().mVec128), DOT_PRODUCT(c.m_relpos2CrossNormal.mVec128, body2.internalGetDeltaAngularVelocity().mVec128)); - deltaImpulse = FMNADD(deltaVel1Dotn, tmp, deltaImpulse); - deltaImpulse = FMNADD(deltaVel2Dotn, tmp, deltaImpulse); - tmp = _mm_add_ps(c.m_appliedImpulse, deltaImpulse); // sum - const __m128 maskLower = _mm_cmpgt_ps(tmp, lowerLimit); - const __m128 maskUpper = _mm_cmpgt_ps(upperLimit, tmp); - deltaImpulse = _mm_blendv_ps(_mm_sub_ps(lowerLimit, c.m_appliedImpulse), _mm_blendv_ps(_mm_sub_ps(upperLimit, c.m_appliedImpulse), deltaImpulse, maskUpper), maskLower); - c.m_appliedImpulse = _mm_blendv_ps(lowerLimit, _mm_blendv_ps(upperLimit, tmp, maskUpper), maskLower); - body1.internalGetDeltaLinearVelocity().mVec128 = FMADD(_mm_mul_ps(c.m_contactNormal1.mVec128, body1.internalGetInvMass().mVec128), deltaImpulse, body1.internalGetDeltaLinearVelocity().mVec128); - body1.internalGetDeltaAngularVelocity().mVec128 = FMADD(c.m_angularComponentA.mVec128, deltaImpulse, body1.internalGetDeltaAngularVelocity().mVec128); - body2.internalGetDeltaLinearVelocity().mVec128 = FMADD(_mm_mul_ps(c.m_contactNormal2.mVec128, body2.internalGetInvMass().mVec128), deltaImpulse, body2.internalGetDeltaLinearVelocity().mVec128); - body2.internalGetDeltaAngularVelocity().mVec128 = FMADD(c.m_angularComponentB.mVec128, deltaImpulse, body2.internalGetDeltaAngularVelocity().mVec128); - return deltaImpulse; -#else - return gResolveSingleConstraintRowGeneric_sse2(body1,body2,c); -#endif -} - - - -static btSimdScalar gResolveSingleConstraintRowLowerLimit_sse2(btSolverBody& body1, btSolverBody& body2, const btSolverConstraint& c) -{ - __m128 cpAppliedImp = _mm_set1_ps(c.m_appliedImpulse); - __m128 lowerLimit1 = _mm_set1_ps(c.m_lowerLimit); - __m128 upperLimit1 = _mm_set1_ps(c.m_upperLimit); - btSimdScalar deltaImpulse = _mm_sub_ps(_mm_set1_ps(c.m_rhs), _mm_mul_ps(_mm_set1_ps(c.m_appliedImpulse), _mm_set1_ps(c.m_cfm))); - __m128 deltaVel1Dotn = _mm_add_ps(btSimdDot3(c.m_contactNormal1.mVec128, body1.internalGetDeltaLinearVelocity().mVec128), btSimdDot3(c.m_relpos1CrossNormal.mVec128, body1.internalGetDeltaAngularVelocity().mVec128)); - __m128 deltaVel2Dotn = _mm_add_ps(btSimdDot3(c.m_contactNormal2.mVec128, body2.internalGetDeltaLinearVelocity().mVec128), btSimdDot3(c.m_relpos2CrossNormal.mVec128, body2.internalGetDeltaAngularVelocity().mVec128)); - deltaImpulse = _mm_sub_ps(deltaImpulse, _mm_mul_ps(deltaVel1Dotn, _mm_set1_ps(c.m_jacDiagABInv))); - deltaImpulse = _mm_sub_ps(deltaImpulse, _mm_mul_ps(deltaVel2Dotn, _mm_set1_ps(c.m_jacDiagABInv))); - btSimdScalar sum = _mm_add_ps(cpAppliedImp, deltaImpulse); - btSimdScalar resultLowerLess, resultUpperLess; - resultLowerLess = _mm_cmplt_ps(sum, lowerLimit1); - resultUpperLess = _mm_cmplt_ps(sum, upperLimit1); - __m128 lowMinApplied = _mm_sub_ps(lowerLimit1, cpAppliedImp); - deltaImpulse = _mm_or_ps(_mm_and_ps(resultLowerLess, lowMinApplied), _mm_andnot_ps(resultLowerLess, deltaImpulse)); - c.m_appliedImpulse = _mm_or_ps(_mm_and_ps(resultLowerLess, lowerLimit1), _mm_andnot_ps(resultLowerLess, sum)); - __m128 linearComponentA = _mm_mul_ps(c.m_contactNormal1.mVec128, body1.internalGetInvMass().mVec128); - __m128 linearComponentB = _mm_mul_ps(c.m_contactNormal2.mVec128, body2.internalGetInvMass().mVec128); - __m128 impulseMagnitude = deltaImpulse; - body1.internalGetDeltaLinearVelocity().mVec128 = _mm_add_ps(body1.internalGetDeltaLinearVelocity().mVec128, _mm_mul_ps(linearComponentA, impulseMagnitude)); - body1.internalGetDeltaAngularVelocity().mVec128 = _mm_add_ps(body1.internalGetDeltaAngularVelocity().mVec128, _mm_mul_ps(c.m_angularComponentA.mVec128, impulseMagnitude)); - body2.internalGetDeltaLinearVelocity().mVec128 = _mm_add_ps(body2.internalGetDeltaLinearVelocity().mVec128, _mm_mul_ps(linearComponentB, impulseMagnitude)); - body2.internalGetDeltaAngularVelocity().mVec128 = _mm_add_ps(body2.internalGetDeltaAngularVelocity().mVec128, _mm_mul_ps(c.m_angularComponentB.mVec128, impulseMagnitude)); - return deltaImpulse; -} - - -// Enhanced version of gResolveSingleConstraintRowGeneric_sse2 with SSE4.1 and FMA3 -static btSimdScalar gResolveSingleConstraintRowLowerLimit_sse4_1_fma3(btSolverBody& body1, btSolverBody& body2, const btSolverConstraint& c) -{ -#ifdef BT_ALLOW_SSE4 - __m128 tmp = _mm_set_ps1(c.m_jacDiagABInv); - __m128 deltaImpulse = _mm_set_ps1(c.m_rhs - btScalar(c.m_appliedImpulse)*c.m_cfm); - const __m128 lowerLimit = _mm_set_ps1(c.m_lowerLimit); - const __m128 deltaVel1Dotn = _mm_add_ps(DOT_PRODUCT(c.m_contactNormal1.mVec128, body1.internalGetDeltaLinearVelocity().mVec128), DOT_PRODUCT(c.m_relpos1CrossNormal.mVec128, body1.internalGetDeltaAngularVelocity().mVec128)); - const __m128 deltaVel2Dotn = _mm_add_ps(DOT_PRODUCT(c.m_contactNormal2.mVec128, body2.internalGetDeltaLinearVelocity().mVec128), DOT_PRODUCT(c.m_relpos2CrossNormal.mVec128, body2.internalGetDeltaAngularVelocity().mVec128)); - deltaImpulse = FMNADD(deltaVel1Dotn, tmp, deltaImpulse); - deltaImpulse = FMNADD(deltaVel2Dotn, tmp, deltaImpulse); - tmp = _mm_add_ps(c.m_appliedImpulse, deltaImpulse); - const __m128 mask = _mm_cmpgt_ps(tmp, lowerLimit); - deltaImpulse = _mm_blendv_ps(_mm_sub_ps(lowerLimit, c.m_appliedImpulse), deltaImpulse, mask); - c.m_appliedImpulse = _mm_blendv_ps(lowerLimit, tmp, mask); - body1.internalGetDeltaLinearVelocity().mVec128 = FMADD(_mm_mul_ps(c.m_contactNormal1.mVec128, body1.internalGetInvMass().mVec128), deltaImpulse, body1.internalGetDeltaLinearVelocity().mVec128); - body1.internalGetDeltaAngularVelocity().mVec128 = FMADD(c.m_angularComponentA.mVec128, deltaImpulse, body1.internalGetDeltaAngularVelocity().mVec128); - body2.internalGetDeltaLinearVelocity().mVec128 = FMADD(_mm_mul_ps(c.m_contactNormal2.mVec128, body2.internalGetInvMass().mVec128), deltaImpulse, body2.internalGetDeltaLinearVelocity().mVec128); - body2.internalGetDeltaAngularVelocity().mVec128 = FMADD(c.m_angularComponentB.mVec128, deltaImpulse, body2.internalGetDeltaAngularVelocity().mVec128); - return deltaImpulse; -#else - return gResolveSingleConstraintRowLowerLimit_sse2(body1,body2,c); -#endif //BT_ALLOW_SSE4 -} - - -#endif //USE_SIMD - - - -btSimdScalar btSequentialImpulseConstraintSolver::resolveSingleConstraintRowGenericSIMD(btSolverBody& body1,btSolverBody& body2,const btSolverConstraint& c) -{ - return m_resolveSingleConstraintRowGeneric(body1, body2, c); -} - -// Project Gauss Seidel or the equivalent Sequential Impulse -btSimdScalar btSequentialImpulseConstraintSolver::resolveSingleConstraintRowGeneric(btSolverBody& body1,btSolverBody& body2,const btSolverConstraint& c) -{ - return m_resolveSingleConstraintRowGeneric(body1, body2, c); -} - -btSimdScalar btSequentialImpulseConstraintSolver::resolveSingleConstraintRowLowerLimitSIMD(btSolverBody& body1,btSolverBody& body2,const btSolverConstraint& c) -{ - return m_resolveSingleConstraintRowLowerLimit(body1, body2, c); -} - - -btSimdScalar btSequentialImpulseConstraintSolver::resolveSingleConstraintRowLowerLimit(btSolverBody& body1,btSolverBody& body2,const btSolverConstraint& c) -{ - return m_resolveSingleConstraintRowLowerLimit(body1, body2, c); -} - - -static btSimdScalar gResolveSplitPenetrationImpulse_scalar_reference( - btSolverBody& body1, - btSolverBody& body2, - const btSolverConstraint& c) -{ - btScalar deltaImpulse = 0.f; - - if (c.m_rhsPenetration) - { - gNumSplitImpulseRecoveries++; - deltaImpulse = c.m_rhsPenetration-btScalar(c.m_appliedPushImpulse)*c.m_cfm; - const btScalar deltaVel1Dotn = c.m_contactNormal1.dot(body1.internalGetPushVelocity()) + c.m_relpos1CrossNormal.dot(body1.internalGetTurnVelocity()); - const btScalar deltaVel2Dotn = c.m_contactNormal2.dot(body2.internalGetPushVelocity()) + c.m_relpos2CrossNormal.dot(body2.internalGetTurnVelocity()); - - deltaImpulse -= deltaVel1Dotn*c.m_jacDiagABInv; - deltaImpulse -= deltaVel2Dotn*c.m_jacDiagABInv; - const btScalar sum = btScalar(c.m_appliedPushImpulse) + deltaImpulse; - if (sum < c.m_lowerLimit) - { - deltaImpulse = c.m_lowerLimit-c.m_appliedPushImpulse; - c.m_appliedPushImpulse = c.m_lowerLimit; - } - else - { - c.m_appliedPushImpulse = sum; - } - body1.internalApplyPushImpulse(c.m_contactNormal1*body1.internalGetInvMass(),c.m_angularComponentA,deltaImpulse); - body2.internalApplyPushImpulse(c.m_contactNormal2*body2.internalGetInvMass(),c.m_angularComponentB,deltaImpulse); - } - return deltaImpulse; -} - -static btSimdScalar gResolveSplitPenetrationImpulse_sse2(btSolverBody& body1,btSolverBody& body2,const btSolverConstraint& c) -{ -#ifdef USE_SIMD - if (!c.m_rhsPenetration) - return 0.f; - - gNumSplitImpulseRecoveries++; - - __m128 cpAppliedImp = _mm_set1_ps(c.m_appliedPushImpulse); - __m128 lowerLimit1 = _mm_set1_ps(c.m_lowerLimit); - __m128 upperLimit1 = _mm_set1_ps(c.m_upperLimit); - __m128 deltaImpulse = _mm_sub_ps(_mm_set1_ps(c.m_rhsPenetration), _mm_mul_ps(_mm_set1_ps(c.m_appliedPushImpulse),_mm_set1_ps(c.m_cfm))); - __m128 deltaVel1Dotn = _mm_add_ps(btSimdDot3(c.m_contactNormal1.mVec128,body1.internalGetPushVelocity().mVec128), btSimdDot3(c.m_relpos1CrossNormal.mVec128,body1.internalGetTurnVelocity().mVec128)); - __m128 deltaVel2Dotn = _mm_add_ps(btSimdDot3(c.m_contactNormal2.mVec128,body2.internalGetPushVelocity().mVec128), btSimdDot3(c.m_relpos2CrossNormal.mVec128,body2.internalGetTurnVelocity().mVec128)); - deltaImpulse = _mm_sub_ps(deltaImpulse,_mm_mul_ps(deltaVel1Dotn,_mm_set1_ps(c.m_jacDiagABInv))); - deltaImpulse = _mm_sub_ps(deltaImpulse,_mm_mul_ps(deltaVel2Dotn,_mm_set1_ps(c.m_jacDiagABInv))); - btSimdScalar sum = _mm_add_ps(cpAppliedImp,deltaImpulse); - btSimdScalar resultLowerLess,resultUpperLess; - resultLowerLess = _mm_cmplt_ps(sum,lowerLimit1); - resultUpperLess = _mm_cmplt_ps(sum,upperLimit1); - __m128 lowMinApplied = _mm_sub_ps(lowerLimit1,cpAppliedImp); - deltaImpulse = _mm_or_ps( _mm_and_ps(resultLowerLess, lowMinApplied), _mm_andnot_ps(resultLowerLess, deltaImpulse) ); - c.m_appliedPushImpulse = _mm_or_ps( _mm_and_ps(resultLowerLess, lowerLimit1), _mm_andnot_ps(resultLowerLess, sum) ); - __m128 linearComponentA = _mm_mul_ps(c.m_contactNormal1.mVec128,body1.internalGetInvMass().mVec128); - __m128 linearComponentB = _mm_mul_ps(c.m_contactNormal2.mVec128,body2.internalGetInvMass().mVec128); - __m128 impulseMagnitude = deltaImpulse; - body1.internalGetPushVelocity().mVec128 = _mm_add_ps(body1.internalGetPushVelocity().mVec128,_mm_mul_ps(linearComponentA,impulseMagnitude)); - body1.internalGetTurnVelocity().mVec128 = _mm_add_ps(body1.internalGetTurnVelocity().mVec128 ,_mm_mul_ps(c.m_angularComponentA.mVec128,impulseMagnitude)); - body2.internalGetPushVelocity().mVec128 = _mm_add_ps(body2.internalGetPushVelocity().mVec128,_mm_mul_ps(linearComponentB,impulseMagnitude)); - body2.internalGetTurnVelocity().mVec128 = _mm_add_ps(body2.internalGetTurnVelocity().mVec128 ,_mm_mul_ps(c.m_angularComponentB.mVec128,impulseMagnitude)); - return deltaImpulse; -#else - return gResolveSplitPenetrationImpulse_scalar_reference(body1,body2,c); -#endif -} - - -btSequentialImpulseConstraintSolver::btSequentialImpulseConstraintSolver() -{ - m_btSeed2 = 0; - m_cachedSolverMode = 0; - setupSolverFunctions( false ); -} - -void btSequentialImpulseConstraintSolver::setupSolverFunctions( bool useSimd ) -{ - m_resolveSingleConstraintRowGeneric = gResolveSingleConstraintRowGeneric_scalar_reference; - m_resolveSingleConstraintRowLowerLimit = gResolveSingleConstraintRowLowerLimit_scalar_reference; - m_resolveSplitPenetrationImpulse = gResolveSplitPenetrationImpulse_scalar_reference; - - if ( useSimd ) - { -#ifdef USE_SIMD - m_resolveSingleConstraintRowGeneric = gResolveSingleConstraintRowGeneric_sse2; - m_resolveSingleConstraintRowLowerLimit = gResolveSingleConstraintRowLowerLimit_sse2; - m_resolveSplitPenetrationImpulse = gResolveSplitPenetrationImpulse_sse2; - -#ifdef BT_ALLOW_SSE4 - int cpuFeatures = btCpuFeatureUtility::getCpuFeatures(); - if ((cpuFeatures & btCpuFeatureUtility::CPU_FEATURE_FMA3) && (cpuFeatures & btCpuFeatureUtility::CPU_FEATURE_SSE4_1)) - { - m_resolveSingleConstraintRowGeneric = gResolveSingleConstraintRowGeneric_sse4_1_fma3; - m_resolveSingleConstraintRowLowerLimit = gResolveSingleConstraintRowLowerLimit_sse4_1_fma3; - } -#endif//BT_ALLOW_SSE4 -#endif //USE_SIMD - } -} - - btSequentialImpulseConstraintSolver::~btSequentialImpulseConstraintSolver() - { - } - - btSingleConstraintRowSolver btSequentialImpulseConstraintSolver::getScalarConstraintRowSolverGeneric() - { - return gResolveSingleConstraintRowGeneric_scalar_reference; - } - - btSingleConstraintRowSolver btSequentialImpulseConstraintSolver::getScalarConstraintRowSolverLowerLimit() - { - return gResolveSingleConstraintRowLowerLimit_scalar_reference; - } - - -#ifdef USE_SIMD - btSingleConstraintRowSolver btSequentialImpulseConstraintSolver::getSSE2ConstraintRowSolverGeneric() - { - return gResolveSingleConstraintRowGeneric_sse2; - } - btSingleConstraintRowSolver btSequentialImpulseConstraintSolver::getSSE2ConstraintRowSolverLowerLimit() - { - return gResolveSingleConstraintRowLowerLimit_sse2; - } -#ifdef BT_ALLOW_SSE4 - btSingleConstraintRowSolver btSequentialImpulseConstraintSolver::getSSE4_1ConstraintRowSolverGeneric() - { - return gResolveSingleConstraintRowGeneric_sse4_1_fma3; - } - btSingleConstraintRowSolver btSequentialImpulseConstraintSolver::getSSE4_1ConstraintRowSolverLowerLimit() - { - return gResolveSingleConstraintRowLowerLimit_sse4_1_fma3; - } -#endif //BT_ALLOW_SSE4 -#endif //USE_SIMD - -unsigned long btSequentialImpulseConstraintSolver::btRand2() -{ - m_btSeed2 = (1664525L*m_btSeed2 + 1013904223L) & 0xffffffff; - return m_btSeed2; -} - - - -//See ODE: adam's all-int straightforward(?) dRandInt (0..n-1) -int btSequentialImpulseConstraintSolver::btRandInt2 (int n) -{ - // seems good; xor-fold and modulus - const unsigned long un = static_cast<unsigned long>(n); - unsigned long r = btRand2(); - - // note: probably more aggressive than it needs to be -- might be - // able to get away without one or two of the innermost branches. - if (un <= 0x00010000UL) { - r ^= (r >> 16); - if (un <= 0x00000100UL) { - r ^= (r >> 8); - if (un <= 0x00000010UL) { - r ^= (r >> 4); - if (un <= 0x00000004UL) { - r ^= (r >> 2); - if (un <= 0x00000002UL) { - r ^= (r >> 1); - } - } - } - } - } - - return (int) (r % un); -} - - - -void btSequentialImpulseConstraintSolver::initSolverBody(btSolverBody* solverBody, btCollisionObject* collisionObject, btScalar timeStep) -{ - - btRigidBody* rb = collisionObject? btRigidBody::upcast(collisionObject) : 0; - - solverBody->internalGetDeltaLinearVelocity().setValue(0.f,0.f,0.f); - solverBody->internalGetDeltaAngularVelocity().setValue(0.f,0.f,0.f); - solverBody->internalGetPushVelocity().setValue(0.f,0.f,0.f); - solverBody->internalGetTurnVelocity().setValue(0.f,0.f,0.f); - - if (rb) - { - solverBody->m_worldTransform = rb->getWorldTransform(); - solverBody->internalSetInvMass(btVector3(rb->getInvMass(),rb->getInvMass(),rb->getInvMass())*rb->getLinearFactor()); - solverBody->m_originalBody = rb; - solverBody->m_angularFactor = rb->getAngularFactor(); - solverBody->m_linearFactor = rb->getLinearFactor(); - solverBody->m_linearVelocity = rb->getLinearVelocity(); - solverBody->m_angularVelocity = rb->getAngularVelocity(); - solverBody->m_externalForceImpulse = rb->getTotalForce()*rb->getInvMass()*timeStep; - solverBody->m_externalTorqueImpulse = rb->getTotalTorque()*rb->getInvInertiaTensorWorld()*timeStep ; - - } else - { - solverBody->m_worldTransform.setIdentity(); - solverBody->internalSetInvMass(btVector3(0,0,0)); - solverBody->m_originalBody = 0; - solverBody->m_angularFactor.setValue(1,1,1); - solverBody->m_linearFactor.setValue(1,1,1); - solverBody->m_linearVelocity.setValue(0,0,0); - solverBody->m_angularVelocity.setValue(0,0,0); - solverBody->m_externalForceImpulse.setValue(0,0,0); - solverBody->m_externalTorqueImpulse.setValue(0,0,0); - } - - -} - - - - - - -btScalar btSequentialImpulseConstraintSolver::restitutionCurve(btScalar rel_vel, btScalar restitution, btScalar velocityThreshold) -{ - //printf("rel_vel =%f\n", rel_vel); - if (btFabs(rel_vel)<velocityThreshold) - return 0.; - - btScalar rest = restitution * -rel_vel; - return rest; -} - - - -void btSequentialImpulseConstraintSolver::applyAnisotropicFriction(btCollisionObject* colObj,btVector3& frictionDirection, int frictionMode) -{ - - - if (colObj && colObj->hasAnisotropicFriction(frictionMode)) - { - // transform to local coordinates - btVector3 loc_lateral = frictionDirection * colObj->getWorldTransform().getBasis(); - const btVector3& friction_scaling = colObj->getAnisotropicFriction(); - //apply anisotropic friction - loc_lateral *= friction_scaling; - // ... and transform it back to global coordinates - frictionDirection = colObj->getWorldTransform().getBasis() * loc_lateral; - } - -} - - - - -void btSequentialImpulseConstraintSolver::setupFrictionConstraint(btSolverConstraint& solverConstraint, const btVector3& normalAxis,int solverBodyIdA,int solverBodyIdB,btManifoldPoint& cp,const btVector3& rel_pos1,const btVector3& rel_pos2,btCollisionObject* colObj0,btCollisionObject* colObj1, btScalar relaxation, const btContactSolverInfo& infoGlobal, btScalar desiredVelocity, btScalar cfmSlip) -{ - - - btSolverBody& solverBodyA = m_tmpSolverBodyPool[solverBodyIdA]; - btSolverBody& solverBodyB = m_tmpSolverBodyPool[solverBodyIdB]; - - btRigidBody* body0 = m_tmpSolverBodyPool[solverBodyIdA].m_originalBody; - btRigidBody* body1 = m_tmpSolverBodyPool[solverBodyIdB].m_originalBody; - - solverConstraint.m_solverBodyIdA = solverBodyIdA; - solverConstraint.m_solverBodyIdB = solverBodyIdB; - - solverConstraint.m_friction = cp.m_combinedFriction; - solverConstraint.m_originalContactPoint = 0; - - solverConstraint.m_appliedImpulse = 0.f; - solverConstraint.m_appliedPushImpulse = 0.f; - - if (body0) - { - solverConstraint.m_contactNormal1 = normalAxis; - btVector3 ftorqueAxis1 = rel_pos1.cross(solverConstraint.m_contactNormal1); - solverConstraint.m_relpos1CrossNormal = ftorqueAxis1; - solverConstraint.m_angularComponentA = body0->getInvInertiaTensorWorld()*ftorqueAxis1*body0->getAngularFactor(); - }else - { - solverConstraint.m_contactNormal1.setZero(); - solverConstraint.m_relpos1CrossNormal.setZero(); - solverConstraint.m_angularComponentA .setZero(); - } - - if (body1) - { - solverConstraint.m_contactNormal2 = -normalAxis; - btVector3 ftorqueAxis1 = rel_pos2.cross(solverConstraint.m_contactNormal2); - solverConstraint.m_relpos2CrossNormal = ftorqueAxis1; - solverConstraint.m_angularComponentB = body1->getInvInertiaTensorWorld()*ftorqueAxis1*body1->getAngularFactor(); - } else - { - solverConstraint.m_contactNormal2.setZero(); - solverConstraint.m_relpos2CrossNormal.setZero(); - solverConstraint.m_angularComponentB.setZero(); - } - - { - btVector3 vec; - btScalar denom0 = 0.f; - btScalar denom1 = 0.f; - if (body0) - { - vec = ( solverConstraint.m_angularComponentA).cross(rel_pos1); - denom0 = body0->getInvMass() + normalAxis.dot(vec); - } - if (body1) - { - vec = ( -solverConstraint.m_angularComponentB).cross(rel_pos2); - denom1 = body1->getInvMass() + normalAxis.dot(vec); - } - btScalar denom = relaxation/(denom0+denom1); - solverConstraint.m_jacDiagABInv = denom; - } - - { - - - btScalar rel_vel; - btScalar vel1Dotn = solverConstraint.m_contactNormal1.dot(body0?solverBodyA.m_linearVelocity+solverBodyA.m_externalForceImpulse:btVector3(0,0,0)) - + solverConstraint.m_relpos1CrossNormal.dot(body0?solverBodyA.m_angularVelocity:btVector3(0,0,0)); - btScalar vel2Dotn = solverConstraint.m_contactNormal2.dot(body1?solverBodyB.m_linearVelocity+solverBodyB.m_externalForceImpulse:btVector3(0,0,0)) - + solverConstraint.m_relpos2CrossNormal.dot(body1?solverBodyB.m_angularVelocity:btVector3(0,0,0)); - - rel_vel = vel1Dotn+vel2Dotn; - -// btScalar positionalError = 0.f; - - btScalar velocityError = desiredVelocity - rel_vel; - btScalar velocityImpulse = velocityError * solverConstraint.m_jacDiagABInv; - - btScalar penetrationImpulse = btScalar(0); - - if (cp.m_contactPointFlags & BT_CONTACT_FLAG_FRICTION_ANCHOR) - { - btScalar distance = (cp.getPositionWorldOnA() - cp.getPositionWorldOnB()).dot(normalAxis); - btScalar positionalError = -distance * infoGlobal.m_frictionERP/infoGlobal.m_timeStep; - penetrationImpulse = positionalError*solverConstraint.m_jacDiagABInv; - } - - solverConstraint.m_rhs = penetrationImpulse + velocityImpulse; - solverConstraint.m_rhsPenetration = 0.f; - solverConstraint.m_cfm = cfmSlip; - solverConstraint.m_lowerLimit = -solverConstraint.m_friction; - solverConstraint.m_upperLimit = solverConstraint.m_friction; - - } -} - -btSolverConstraint& btSequentialImpulseConstraintSolver::addFrictionConstraint(const btVector3& normalAxis,int solverBodyIdA,int solverBodyIdB,int frictionIndex,btManifoldPoint& cp,const btVector3& rel_pos1,const btVector3& rel_pos2,btCollisionObject* colObj0,btCollisionObject* colObj1, btScalar relaxation, const btContactSolverInfo& infoGlobal, btScalar desiredVelocity, btScalar cfmSlip) -{ - btSolverConstraint& solverConstraint = m_tmpSolverContactFrictionConstraintPool.expandNonInitializing(); - solverConstraint.m_frictionIndex = frictionIndex; - setupFrictionConstraint(solverConstraint, normalAxis, solverBodyIdA, solverBodyIdB, cp, rel_pos1, rel_pos2, - colObj0, colObj1, relaxation, infoGlobal, desiredVelocity, cfmSlip); - return solverConstraint; -} - - -void btSequentialImpulseConstraintSolver::setupTorsionalFrictionConstraint( btSolverConstraint& solverConstraint, const btVector3& normalAxis1,int solverBodyIdA,int solverBodyIdB, - btManifoldPoint& cp,btScalar combinedTorsionalFriction, const btVector3& rel_pos1,const btVector3& rel_pos2, - btCollisionObject* colObj0,btCollisionObject* colObj1, btScalar relaxation, - btScalar desiredVelocity, btScalar cfmSlip) - -{ - btVector3 normalAxis(0,0,0); - - - solverConstraint.m_contactNormal1 = normalAxis; - solverConstraint.m_contactNormal2 = -normalAxis; - btSolverBody& solverBodyA = m_tmpSolverBodyPool[solverBodyIdA]; - btSolverBody& solverBodyB = m_tmpSolverBodyPool[solverBodyIdB]; - - btRigidBody* body0 = m_tmpSolverBodyPool[solverBodyIdA].m_originalBody; - btRigidBody* body1 = m_tmpSolverBodyPool[solverBodyIdB].m_originalBody; - - solverConstraint.m_solverBodyIdA = solverBodyIdA; - solverConstraint.m_solverBodyIdB = solverBodyIdB; - - solverConstraint.m_friction = combinedTorsionalFriction; - solverConstraint.m_originalContactPoint = 0; - - solverConstraint.m_appliedImpulse = 0.f; - solverConstraint.m_appliedPushImpulse = 0.f; - - { - btVector3 ftorqueAxis1 = -normalAxis1; - solverConstraint.m_relpos1CrossNormal = ftorqueAxis1; - solverConstraint.m_angularComponentA = body0 ? body0->getInvInertiaTensorWorld()*ftorqueAxis1*body0->getAngularFactor() : btVector3(0,0,0); - } - { - btVector3 ftorqueAxis1 = normalAxis1; - solverConstraint.m_relpos2CrossNormal = ftorqueAxis1; - solverConstraint.m_angularComponentB = body1 ? body1->getInvInertiaTensorWorld()*ftorqueAxis1*body1->getAngularFactor() : btVector3(0,0,0); - } - - - { - btVector3 iMJaA = body0?body0->getInvInertiaTensorWorld()*solverConstraint.m_relpos1CrossNormal:btVector3(0,0,0); - btVector3 iMJaB = body1?body1->getInvInertiaTensorWorld()*solverConstraint.m_relpos2CrossNormal:btVector3(0,0,0); - btScalar sum = 0; - sum += iMJaA.dot(solverConstraint.m_relpos1CrossNormal); - sum += iMJaB.dot(solverConstraint.m_relpos2CrossNormal); - solverConstraint.m_jacDiagABInv = btScalar(1.)/sum; - } - - { - - - btScalar rel_vel; - btScalar vel1Dotn = solverConstraint.m_contactNormal1.dot(body0?solverBodyA.m_linearVelocity+solverBodyA.m_externalForceImpulse:btVector3(0,0,0)) - + solverConstraint.m_relpos1CrossNormal.dot(body0?solverBodyA.m_angularVelocity:btVector3(0,0,0)); - btScalar vel2Dotn = solverConstraint.m_contactNormal2.dot(body1?solverBodyB.m_linearVelocity+solverBodyB.m_externalForceImpulse:btVector3(0,0,0)) - + solverConstraint.m_relpos2CrossNormal.dot(body1?solverBodyB.m_angularVelocity:btVector3(0,0,0)); - - rel_vel = vel1Dotn+vel2Dotn; - -// btScalar positionalError = 0.f; - - btSimdScalar velocityError = desiredVelocity - rel_vel; - btSimdScalar velocityImpulse = velocityError * btSimdScalar(solverConstraint.m_jacDiagABInv); - solverConstraint.m_rhs = velocityImpulse; - solverConstraint.m_cfm = cfmSlip; - solverConstraint.m_lowerLimit = -solverConstraint.m_friction; - solverConstraint.m_upperLimit = solverConstraint.m_friction; - - } -} - - - - - - - - -btSolverConstraint& btSequentialImpulseConstraintSolver::addTorsionalFrictionConstraint(const btVector3& normalAxis,int solverBodyIdA,int solverBodyIdB,int frictionIndex,btManifoldPoint& cp,btScalar combinedTorsionalFriction, const btVector3& rel_pos1,const btVector3& rel_pos2,btCollisionObject* colObj0,btCollisionObject* colObj1, btScalar relaxation, btScalar desiredVelocity, btScalar cfmSlip) -{ - btSolverConstraint& solverConstraint = m_tmpSolverContactRollingFrictionConstraintPool.expandNonInitializing(); - solverConstraint.m_frictionIndex = frictionIndex; - setupTorsionalFrictionConstraint(solverConstraint, normalAxis, solverBodyIdA, solverBodyIdB, cp, combinedTorsionalFriction,rel_pos1, rel_pos2, - colObj0, colObj1, relaxation, desiredVelocity, cfmSlip); - return solverConstraint; -} - - -int btSequentialImpulseConstraintSolver::getOrInitSolverBody(btCollisionObject& body,btScalar timeStep) -{ -#if BT_THREADSAFE - int solverBodyId = -1; - if ( !body.isStaticOrKinematicObject() ) - { - // dynamic body - // Dynamic bodies can only be in one island, so it's safe to write to the companionId - solverBodyId = body.getCompanionId(); - if ( solverBodyId < 0 ) - { - if ( btRigidBody* rb = btRigidBody::upcast( &body ) ) - { - solverBodyId = m_tmpSolverBodyPool.size(); - btSolverBody& solverBody = m_tmpSolverBodyPool.expand(); - initSolverBody( &solverBody, &body, timeStep ); - body.setCompanionId( solverBodyId ); - } - } - } - else if (body.isKinematicObject()) - { - // - // NOTE: must test for kinematic before static because some kinematic objects also - // identify as "static" - // - // Kinematic bodies can be in multiple islands at once, so it is a - // race condition to write to them, so we use an alternate method - // to record the solverBodyId - int uniqueId = body.getWorldArrayIndex(); - const int INVALID_SOLVER_BODY_ID = -1; - if (uniqueId >= m_kinematicBodyUniqueIdToSolverBodyTable.size()) - { - m_kinematicBodyUniqueIdToSolverBodyTable.resize(uniqueId + 1, INVALID_SOLVER_BODY_ID); - } - solverBodyId = m_kinematicBodyUniqueIdToSolverBodyTable[ uniqueId ]; - // if no table entry yet, - if ( solverBodyId == INVALID_SOLVER_BODY_ID ) - { - // create a table entry for this body - btRigidBody* rb = btRigidBody::upcast( &body ); - solverBodyId = m_tmpSolverBodyPool.size(); - btSolverBody& solverBody = m_tmpSolverBodyPool.expand(); - initSolverBody( &solverBody, &body, timeStep ); - m_kinematicBodyUniqueIdToSolverBodyTable[ uniqueId ] = solverBodyId; - } - } - else - { - // all fixed bodies (inf mass) get mapped to a single solver id - if ( m_fixedBodyId < 0 ) - { - m_fixedBodyId = m_tmpSolverBodyPool.size(); - btSolverBody& fixedBody = m_tmpSolverBodyPool.expand(); - initSolverBody( &fixedBody, 0, timeStep ); - } - solverBodyId = m_fixedBodyId; - } - btAssert( solverBodyId < m_tmpSolverBodyPool.size() ); - return solverBodyId; -#else // BT_THREADSAFE - - int solverBodyIdA = -1; - - if (body.getCompanionId() >= 0) - { - //body has already been converted - solverBodyIdA = body.getCompanionId(); - btAssert(solverBodyIdA < m_tmpSolverBodyPool.size()); - } else - { - btRigidBody* rb = btRigidBody::upcast(&body); - //convert both active and kinematic objects (for their velocity) - if (rb && (rb->getInvMass() || rb->isKinematicObject())) - { - solverBodyIdA = m_tmpSolverBodyPool.size(); - btSolverBody& solverBody = m_tmpSolverBodyPool.expand(); - initSolverBody(&solverBody,&body,timeStep); - body.setCompanionId(solverBodyIdA); - } else - { - - if (m_fixedBodyId<0) - { - m_fixedBodyId = m_tmpSolverBodyPool.size(); - btSolverBody& fixedBody = m_tmpSolverBodyPool.expand(); - initSolverBody(&fixedBody,0,timeStep); - } - return m_fixedBodyId; -// return 0;//assume first one is a fixed solver body - } - } - - return solverBodyIdA; -#endif // BT_THREADSAFE - -} -#include <stdio.h> - - -void btSequentialImpulseConstraintSolver::setupContactConstraint(btSolverConstraint& solverConstraint, - int solverBodyIdA, int solverBodyIdB, - btManifoldPoint& cp, const btContactSolverInfo& infoGlobal, - btScalar& relaxation, - const btVector3& rel_pos1, const btVector3& rel_pos2) -{ - - // const btVector3& pos1 = cp.getPositionWorldOnA(); - // const btVector3& pos2 = cp.getPositionWorldOnB(); - - btSolverBody* bodyA = &m_tmpSolverBodyPool[solverBodyIdA]; - btSolverBody* bodyB = &m_tmpSolverBodyPool[solverBodyIdB]; - - btRigidBody* rb0 = bodyA->m_originalBody; - btRigidBody* rb1 = bodyB->m_originalBody; - -// btVector3 rel_pos1 = pos1 - colObj0->getWorldTransform().getOrigin(); -// btVector3 rel_pos2 = pos2 - colObj1->getWorldTransform().getOrigin(); - //rel_pos1 = pos1 - bodyA->getWorldTransform().getOrigin(); - //rel_pos2 = pos2 - bodyB->getWorldTransform().getOrigin(); - - relaxation = infoGlobal.m_sor; - btScalar invTimeStep = btScalar(1)/infoGlobal.m_timeStep; - - //cfm = 1 / ( dt * kp + kd ) - //erp = dt * kp / ( dt * kp + kd ) - - btScalar cfm = infoGlobal.m_globalCfm; - btScalar erp = infoGlobal.m_erp2; - - if ((cp.m_contactPointFlags&BT_CONTACT_FLAG_HAS_CONTACT_CFM) || (cp.m_contactPointFlags&BT_CONTACT_FLAG_HAS_CONTACT_ERP)) - { - if (cp.m_contactPointFlags&BT_CONTACT_FLAG_HAS_CONTACT_CFM) - cfm = cp.m_contactCFM; - if (cp.m_contactPointFlags&BT_CONTACT_FLAG_HAS_CONTACT_ERP) - erp = cp.m_contactERP; - } else - { - if (cp.m_contactPointFlags & BT_CONTACT_FLAG_CONTACT_STIFFNESS_DAMPING) - { - btScalar denom = ( infoGlobal.m_timeStep * cp.m_combinedContactStiffness1 + cp.m_combinedContactDamping1 ); - if (denom < SIMD_EPSILON) - { - denom = SIMD_EPSILON; - } - cfm = btScalar(1) / denom; - erp = (infoGlobal.m_timeStep * cp.m_combinedContactStiffness1) / denom; - } - } - - cfm *= invTimeStep; - - - btVector3 torqueAxis0 = rel_pos1.cross(cp.m_normalWorldOnB); - solverConstraint.m_angularComponentA = rb0 ? rb0->getInvInertiaTensorWorld()*torqueAxis0*rb0->getAngularFactor() : btVector3(0,0,0); - btVector3 torqueAxis1 = rel_pos2.cross(cp.m_normalWorldOnB); - solverConstraint.m_angularComponentB = rb1 ? rb1->getInvInertiaTensorWorld()*-torqueAxis1*rb1->getAngularFactor() : btVector3(0,0,0); - - { -#ifdef COMPUTE_IMPULSE_DENOM - btScalar denom0 = rb0->computeImpulseDenominator(pos1,cp.m_normalWorldOnB); - btScalar denom1 = rb1->computeImpulseDenominator(pos2,cp.m_normalWorldOnB); -#else - btVector3 vec; - btScalar denom0 = 0.f; - btScalar denom1 = 0.f; - if (rb0) - { - vec = ( solverConstraint.m_angularComponentA).cross(rel_pos1); - denom0 = rb0->getInvMass() + cp.m_normalWorldOnB.dot(vec); - } - if (rb1) - { - vec = ( -solverConstraint.m_angularComponentB).cross(rel_pos2); - denom1 = rb1->getInvMass() + cp.m_normalWorldOnB.dot(vec); - } -#endif //COMPUTE_IMPULSE_DENOM - - btScalar denom = relaxation/(denom0+denom1+cfm); - solverConstraint.m_jacDiagABInv = denom; - } - - if (rb0) - { - solverConstraint.m_contactNormal1 = cp.m_normalWorldOnB; - solverConstraint.m_relpos1CrossNormal = torqueAxis0; - } else - { - solverConstraint.m_contactNormal1.setZero(); - solverConstraint.m_relpos1CrossNormal.setZero(); - } - if (rb1) - { - solverConstraint.m_contactNormal2 = -cp.m_normalWorldOnB; - solverConstraint.m_relpos2CrossNormal = -torqueAxis1; - }else - { - solverConstraint.m_contactNormal2.setZero(); - solverConstraint.m_relpos2CrossNormal.setZero(); - } - - btScalar restitution = 0.f; - btScalar penetration = cp.getDistance()+infoGlobal.m_linearSlop; - - { - btVector3 vel1,vel2; - - vel1 = rb0? rb0->getVelocityInLocalPoint(rel_pos1) : btVector3(0,0,0); - vel2 = rb1? rb1->getVelocityInLocalPoint(rel_pos2) : btVector3(0,0,0); - - // btVector3 vel2 = rb1 ? rb1->getVelocityInLocalPoint(rel_pos2) : btVector3(0,0,0); - btVector3 vel = vel1 - vel2; - btScalar rel_vel = cp.m_normalWorldOnB.dot(vel); - - - - solverConstraint.m_friction = cp.m_combinedFriction; - - - restitution = restitutionCurve(rel_vel, cp.m_combinedRestitution, infoGlobal.m_restitutionVelocityThreshold); - if (restitution <= btScalar(0.)) - { - restitution = 0.f; - }; - } - - - ///warm starting (or zero if disabled) - if (infoGlobal.m_solverMode & SOLVER_USE_WARMSTARTING) - { - solverConstraint.m_appliedImpulse = cp.m_appliedImpulse * infoGlobal.m_warmstartingFactor; - if (rb0) - bodyA->internalApplyImpulse(solverConstraint.m_contactNormal1*bodyA->internalGetInvMass()*rb0->getLinearFactor(),solverConstraint.m_angularComponentA,solverConstraint.m_appliedImpulse); - if (rb1) - bodyB->internalApplyImpulse(-solverConstraint.m_contactNormal2*bodyB->internalGetInvMass()*rb1->getLinearFactor(),-solverConstraint.m_angularComponentB,-(btScalar)solverConstraint.m_appliedImpulse); - } else - { - solverConstraint.m_appliedImpulse = 0.f; - } - - solverConstraint.m_appliedPushImpulse = 0.f; - - { - - btVector3 externalForceImpulseA = bodyA->m_originalBody ? bodyA->m_externalForceImpulse: btVector3(0,0,0); - btVector3 externalTorqueImpulseA = bodyA->m_originalBody ? bodyA->m_externalTorqueImpulse: btVector3(0,0,0); - btVector3 externalForceImpulseB = bodyB->m_originalBody ? bodyB->m_externalForceImpulse: btVector3(0,0,0); - btVector3 externalTorqueImpulseB = bodyB->m_originalBody ?bodyB->m_externalTorqueImpulse : btVector3(0,0,0); - - - btScalar vel1Dotn = solverConstraint.m_contactNormal1.dot(bodyA->m_linearVelocity+externalForceImpulseA) - + solverConstraint.m_relpos1CrossNormal.dot(bodyA->m_angularVelocity+externalTorqueImpulseA); - btScalar vel2Dotn = solverConstraint.m_contactNormal2.dot(bodyB->m_linearVelocity+externalForceImpulseB) - + solverConstraint.m_relpos2CrossNormal.dot(bodyB->m_angularVelocity+externalTorqueImpulseB); - btScalar rel_vel = vel1Dotn+vel2Dotn; - - btScalar positionalError = 0.f; - btScalar velocityError = restitution - rel_vel;// * damping; - - - - if (penetration>0) - { - positionalError = 0; - - velocityError -= penetration *invTimeStep; - } else - { - positionalError = -penetration * erp*invTimeStep; - - } - - btScalar penetrationImpulse = positionalError*solverConstraint.m_jacDiagABInv; - btScalar velocityImpulse = velocityError *solverConstraint.m_jacDiagABInv; - - if (!infoGlobal.m_splitImpulse || (penetration > infoGlobal.m_splitImpulsePenetrationThreshold)) - { - //combine position and velocity into rhs - solverConstraint.m_rhs = penetrationImpulse+velocityImpulse;//-solverConstraint.m_contactNormal1.dot(bodyA->m_externalForce*bodyA->m_invMass-bodyB->m_externalForce/bodyB->m_invMass)*solverConstraint.m_jacDiagABInv; - solverConstraint.m_rhsPenetration = 0.f; - - } else - { - //split position and velocity into rhs and m_rhsPenetration - solverConstraint.m_rhs = velocityImpulse; - solverConstraint.m_rhsPenetration = penetrationImpulse; - } - solverConstraint.m_cfm = cfm*solverConstraint.m_jacDiagABInv; - solverConstraint.m_lowerLimit = 0; - solverConstraint.m_upperLimit = 1e10f; - } - - - - -} - - - -void btSequentialImpulseConstraintSolver::setFrictionConstraintImpulse( btSolverConstraint& solverConstraint, - int solverBodyIdA, int solverBodyIdB, - btManifoldPoint& cp, const btContactSolverInfo& infoGlobal) -{ - - btSolverBody* bodyA = &m_tmpSolverBodyPool[solverBodyIdA]; - btSolverBody* bodyB = &m_tmpSolverBodyPool[solverBodyIdB]; - - btRigidBody* rb0 = bodyA->m_originalBody; - btRigidBody* rb1 = bodyB->m_originalBody; - - { - btSolverConstraint& frictionConstraint1 = m_tmpSolverContactFrictionConstraintPool[solverConstraint.m_frictionIndex]; - if (infoGlobal.m_solverMode & SOLVER_USE_WARMSTARTING) - { - frictionConstraint1.m_appliedImpulse = cp.m_appliedImpulseLateral1 * infoGlobal.m_warmstartingFactor; - if (rb0) - bodyA->internalApplyImpulse(frictionConstraint1.m_contactNormal1*rb0->getInvMass()*rb0->getLinearFactor(),frictionConstraint1.m_angularComponentA,frictionConstraint1.m_appliedImpulse); - if (rb1) - bodyB->internalApplyImpulse(-frictionConstraint1.m_contactNormal2*rb1->getInvMass()*rb1->getLinearFactor(),-frictionConstraint1.m_angularComponentB,-(btScalar)frictionConstraint1.m_appliedImpulse); - } else - { - frictionConstraint1.m_appliedImpulse = 0.f; - } - } - - if ((infoGlobal.m_solverMode & SOLVER_USE_2_FRICTION_DIRECTIONS)) - { - btSolverConstraint& frictionConstraint2 = m_tmpSolverContactFrictionConstraintPool[solverConstraint.m_frictionIndex+1]; - if (infoGlobal.m_solverMode & SOLVER_USE_WARMSTARTING) - { - frictionConstraint2.m_appliedImpulse = cp.m_appliedImpulseLateral2 * infoGlobal.m_warmstartingFactor; - if (rb0) - bodyA->internalApplyImpulse(frictionConstraint2.m_contactNormal1*rb0->getInvMass(),frictionConstraint2.m_angularComponentA,frictionConstraint2.m_appliedImpulse); - if (rb1) - bodyB->internalApplyImpulse(-frictionConstraint2.m_contactNormal2*rb1->getInvMass(),-frictionConstraint2.m_angularComponentB,-(btScalar)frictionConstraint2.m_appliedImpulse); - } else - { - frictionConstraint2.m_appliedImpulse = 0.f; - } - } -} - - - - -void btSequentialImpulseConstraintSolver::convertContact(btPersistentManifold* manifold,const btContactSolverInfo& infoGlobal) -{ - btCollisionObject* colObj0=0,*colObj1=0; - - colObj0 = (btCollisionObject*)manifold->getBody0(); - colObj1 = (btCollisionObject*)manifold->getBody1(); - - int solverBodyIdA = getOrInitSolverBody(*colObj0,infoGlobal.m_timeStep); - int solverBodyIdB = getOrInitSolverBody(*colObj1,infoGlobal.m_timeStep); - -// btRigidBody* bodyA = btRigidBody::upcast(colObj0); -// btRigidBody* bodyB = btRigidBody::upcast(colObj1); - - btSolverBody* solverBodyA = &m_tmpSolverBodyPool[solverBodyIdA]; - btSolverBody* solverBodyB = &m_tmpSolverBodyPool[solverBodyIdB]; - - - - ///avoid collision response between two static objects - if (!solverBodyA || (solverBodyA->m_invMass.fuzzyZero() && (!solverBodyB || solverBodyB->m_invMass.fuzzyZero()))) - return; - - int rollingFriction=1; - for (int j=0;j<manifold->getNumContacts();j++) - { - - btManifoldPoint& cp = manifold->getContactPoint(j); - - if (cp.getDistance() <= manifold->getContactProcessingThreshold()) - { - btVector3 rel_pos1; - btVector3 rel_pos2; - btScalar relaxation; - - - int frictionIndex = m_tmpSolverContactConstraintPool.size(); - btSolverConstraint& solverConstraint = m_tmpSolverContactConstraintPool.expandNonInitializing(); - solverConstraint.m_solverBodyIdA = solverBodyIdA; - solverConstraint.m_solverBodyIdB = solverBodyIdB; - - solverConstraint.m_originalContactPoint = &cp; - - const btVector3& pos1 = cp.getPositionWorldOnA(); - const btVector3& pos2 = cp.getPositionWorldOnB(); - - rel_pos1 = pos1 - colObj0->getWorldTransform().getOrigin(); - rel_pos2 = pos2 - colObj1->getWorldTransform().getOrigin(); - - btVector3 vel1; - btVector3 vel2; - - solverBodyA->getVelocityInLocalPointNoDelta(rel_pos1,vel1); - solverBodyB->getVelocityInLocalPointNoDelta(rel_pos2,vel2 ); - - btVector3 vel = vel1 - vel2; - btScalar rel_vel = cp.m_normalWorldOnB.dot(vel); - - setupContactConstraint(solverConstraint, solverBodyIdA, solverBodyIdB, cp, infoGlobal, relaxation, rel_pos1, rel_pos2); - - - - - /////setup the friction constraints - - solverConstraint.m_frictionIndex = m_tmpSolverContactFrictionConstraintPool.size(); - - if ((cp.m_combinedRollingFriction>0.f) && (rollingFriction>0)) - { - - { - addTorsionalFrictionConstraint(cp.m_normalWorldOnB,solverBodyIdA,solverBodyIdB,frictionIndex,cp,cp.m_combinedSpinningFriction, rel_pos1,rel_pos2,colObj0,colObj1, relaxation); - btVector3 axis0,axis1; - btPlaneSpace1(cp.m_normalWorldOnB,axis0,axis1); - axis0.normalize(); - axis1.normalize(); - - applyAnisotropicFriction(colObj0,axis0,btCollisionObject::CF_ANISOTROPIC_ROLLING_FRICTION); - applyAnisotropicFriction(colObj1,axis0,btCollisionObject::CF_ANISOTROPIC_ROLLING_FRICTION); - applyAnisotropicFriction(colObj0,axis1,btCollisionObject::CF_ANISOTROPIC_ROLLING_FRICTION); - applyAnisotropicFriction(colObj1,axis1,btCollisionObject::CF_ANISOTROPIC_ROLLING_FRICTION); - if (axis0.length()>0.001) - addTorsionalFrictionConstraint(axis0,solverBodyIdA,solverBodyIdB,frictionIndex,cp, - cp.m_combinedRollingFriction, rel_pos1,rel_pos2,colObj0,colObj1, relaxation); - if (axis1.length()>0.001) - addTorsionalFrictionConstraint(axis1,solverBodyIdA,solverBodyIdB,frictionIndex,cp, - cp.m_combinedRollingFriction, rel_pos1,rel_pos2,colObj0,colObj1, relaxation); - - } - } - - ///Bullet has several options to set the friction directions - ///By default, each contact has only a single friction direction that is recomputed automatically very frame - ///based on the relative linear velocity. - ///If the relative velocity it zero, it will automatically compute a friction direction. - - ///You can also enable two friction directions, using the SOLVER_USE_2_FRICTION_DIRECTIONS. - ///In that case, the second friction direction will be orthogonal to both contact normal and first friction direction. - /// - ///If you choose SOLVER_DISABLE_VELOCITY_DEPENDENT_FRICTION_DIRECTION, then the friction will be independent from the relative projected velocity. - /// - ///The user can manually override the friction directions for certain contacts using a contact callback, - ///and set the cp.m_lateralFrictionInitialized to true - ///In that case, you can set the target relative motion in each friction direction (cp.m_contactMotion1 and cp.m_contactMotion2) - ///this will give a conveyor belt effect - /// - - if (!(infoGlobal.m_solverMode & SOLVER_ENABLE_FRICTION_DIRECTION_CACHING) || !(cp.m_contactPointFlags&BT_CONTACT_FLAG_LATERAL_FRICTION_INITIALIZED)) - { - cp.m_lateralFrictionDir1 = vel - cp.m_normalWorldOnB * rel_vel; - btScalar lat_rel_vel = cp.m_lateralFrictionDir1.length2(); - if (!(infoGlobal.m_solverMode & SOLVER_DISABLE_VELOCITY_DEPENDENT_FRICTION_DIRECTION) && lat_rel_vel > SIMD_EPSILON) - { - cp.m_lateralFrictionDir1 *= 1.f/btSqrt(lat_rel_vel); - applyAnisotropicFriction(colObj0,cp.m_lateralFrictionDir1,btCollisionObject::CF_ANISOTROPIC_FRICTION); - applyAnisotropicFriction(colObj1,cp.m_lateralFrictionDir1,btCollisionObject::CF_ANISOTROPIC_FRICTION); - addFrictionConstraint(cp.m_lateralFrictionDir1,solverBodyIdA,solverBodyIdB,frictionIndex,cp,rel_pos1,rel_pos2,colObj0,colObj1, relaxation,infoGlobal); - - if((infoGlobal.m_solverMode & SOLVER_USE_2_FRICTION_DIRECTIONS)) - { - cp.m_lateralFrictionDir2 = cp.m_lateralFrictionDir1.cross(cp.m_normalWorldOnB); - cp.m_lateralFrictionDir2.normalize();//?? - applyAnisotropicFriction(colObj0,cp.m_lateralFrictionDir2,btCollisionObject::CF_ANISOTROPIC_FRICTION); - applyAnisotropicFriction(colObj1,cp.m_lateralFrictionDir2,btCollisionObject::CF_ANISOTROPIC_FRICTION); - addFrictionConstraint(cp.m_lateralFrictionDir2,solverBodyIdA,solverBodyIdB,frictionIndex,cp,rel_pos1,rel_pos2,colObj0,colObj1, relaxation, infoGlobal); - } - - } else - { - btPlaneSpace1(cp.m_normalWorldOnB,cp.m_lateralFrictionDir1,cp.m_lateralFrictionDir2); - - applyAnisotropicFriction(colObj0,cp.m_lateralFrictionDir1,btCollisionObject::CF_ANISOTROPIC_FRICTION); - applyAnisotropicFriction(colObj1,cp.m_lateralFrictionDir1,btCollisionObject::CF_ANISOTROPIC_FRICTION); - addFrictionConstraint(cp.m_lateralFrictionDir1,solverBodyIdA,solverBodyIdB,frictionIndex,cp,rel_pos1,rel_pos2,colObj0,colObj1, relaxation, infoGlobal); - - if ((infoGlobal.m_solverMode & SOLVER_USE_2_FRICTION_DIRECTIONS)) - { - applyAnisotropicFriction(colObj0,cp.m_lateralFrictionDir2,btCollisionObject::CF_ANISOTROPIC_FRICTION); - applyAnisotropicFriction(colObj1,cp.m_lateralFrictionDir2,btCollisionObject::CF_ANISOTROPIC_FRICTION); - addFrictionConstraint(cp.m_lateralFrictionDir2,solverBodyIdA,solverBodyIdB,frictionIndex,cp,rel_pos1,rel_pos2,colObj0,colObj1, relaxation, infoGlobal); - } - - - if ((infoGlobal.m_solverMode & SOLVER_USE_2_FRICTION_DIRECTIONS) && (infoGlobal.m_solverMode & SOLVER_DISABLE_VELOCITY_DEPENDENT_FRICTION_DIRECTION)) - { - cp.m_contactPointFlags|=BT_CONTACT_FLAG_LATERAL_FRICTION_INITIALIZED; - } - } - - } else - { - addFrictionConstraint(cp.m_lateralFrictionDir1,solverBodyIdA,solverBodyIdB,frictionIndex,cp,rel_pos1,rel_pos2,colObj0,colObj1, relaxation, infoGlobal, cp.m_contactMotion1, cp.m_frictionCFM); - - if ((infoGlobal.m_solverMode & SOLVER_USE_2_FRICTION_DIRECTIONS)) - addFrictionConstraint(cp.m_lateralFrictionDir2,solverBodyIdA,solverBodyIdB,frictionIndex,cp,rel_pos1,rel_pos2,colObj0,colObj1, relaxation, infoGlobal, cp.m_contactMotion2, cp.m_frictionCFM); - - } - setFrictionConstraintImpulse( solverConstraint, solverBodyIdA, solverBodyIdB, cp, infoGlobal); - - - - - } - } -} - -void btSequentialImpulseConstraintSolver::convertContacts(btPersistentManifold** manifoldPtr,int numManifolds, const btContactSolverInfo& infoGlobal) -{ - int i; - btPersistentManifold* manifold = 0; -// btCollisionObject* colObj0=0,*colObj1=0; - - - for (i=0;i<numManifolds;i++) - { - manifold = manifoldPtr[i]; - convertContact(manifold,infoGlobal); - } -} - -btScalar btSequentialImpulseConstraintSolver::solveGroupCacheFriendlySetup(btCollisionObject** bodies, int numBodies, btPersistentManifold** manifoldPtr, int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* debugDrawer) -{ - m_fixedBodyId = -1; - BT_PROFILE("solveGroupCacheFriendlySetup"); - (void)debugDrawer; - - // if solver mode has changed, - if ( infoGlobal.m_solverMode != m_cachedSolverMode ) - { - // update solver functions to use SIMD or non-SIMD - bool useSimd = !!( infoGlobal.m_solverMode & SOLVER_SIMD ); - setupSolverFunctions( useSimd ); - m_cachedSolverMode = infoGlobal.m_solverMode; - } - m_maxOverrideNumSolverIterations = 0; - -#ifdef BT_ADDITIONAL_DEBUG - //make sure that dynamic bodies exist for all (enabled) constraints - for (int i=0;i<numConstraints;i++) - { - btTypedConstraint* constraint = constraints[i]; - if (constraint->isEnabled()) - { - if (!constraint->getRigidBodyA().isStaticOrKinematicObject()) - { - bool found=false; - for (int b=0;b<numBodies;b++) - { - - if (&constraint->getRigidBodyA()==bodies[b]) - { - found = true; - break; - } - } - btAssert(found); - } - if (!constraint->getRigidBodyB().isStaticOrKinematicObject()) - { - bool found=false; - for (int b=0;b<numBodies;b++) - { - if (&constraint->getRigidBodyB()==bodies[b]) - { - found = true; - break; - } - } - btAssert(found); - } - } - } - //make sure that dynamic bodies exist for all contact manifolds - for (int i=0;i<numManifolds;i++) - { - if (!manifoldPtr[i]->getBody0()->isStaticOrKinematicObject()) - { - bool found=false; - for (int b=0;b<numBodies;b++) - { - - if (manifoldPtr[i]->getBody0()==bodies[b]) - { - found = true; - break; - } - } - btAssert(found); - } - if (!manifoldPtr[i]->getBody1()->isStaticOrKinematicObject()) - { - bool found=false; - for (int b=0;b<numBodies;b++) - { - if (manifoldPtr[i]->getBody1()==bodies[b]) - { - found = true; - break; - } - } - btAssert(found); - } - } -#endif //BT_ADDITIONAL_DEBUG - - - for (int i = 0; i < numBodies; i++) - { - bodies[i]->setCompanionId(-1); - } -#if BT_THREADSAFE - m_kinematicBodyUniqueIdToSolverBodyTable.resize( 0 ); -#endif // BT_THREADSAFE - - m_tmpSolverBodyPool.reserve(numBodies+1); - m_tmpSolverBodyPool.resize(0); - - //btSolverBody& fixedBody = m_tmpSolverBodyPool.expand(); - //initSolverBody(&fixedBody,0); - - //convert all bodies - - - for (int i=0;i<numBodies;i++) - { - int bodyId = getOrInitSolverBody(*bodies[i],infoGlobal.m_timeStep); - - btRigidBody* body = btRigidBody::upcast(bodies[i]); - if (body && body->getInvMass()) - { - btSolverBody& solverBody = m_tmpSolverBodyPool[bodyId]; - btVector3 gyroForce (0,0,0); - if (body->getFlags()&BT_ENABLE_GYROSCOPIC_FORCE_EXPLICIT) - { - gyroForce = body->computeGyroscopicForceExplicit(infoGlobal.m_maxGyroscopicForce); - solverBody.m_externalTorqueImpulse -= gyroForce*body->getInvInertiaTensorWorld()*infoGlobal.m_timeStep; - } - if (body->getFlags()&BT_ENABLE_GYROSCOPIC_FORCE_IMPLICIT_WORLD) - { - gyroForce = body->computeGyroscopicImpulseImplicit_World(infoGlobal.m_timeStep); - solverBody.m_externalTorqueImpulse += gyroForce; - } - if (body->getFlags()&BT_ENABLE_GYROSCOPIC_FORCE_IMPLICIT_BODY) - { - gyroForce = body->computeGyroscopicImpulseImplicit_Body(infoGlobal.m_timeStep); - solverBody.m_externalTorqueImpulse += gyroForce; - - } - - - } - } - - if (1) - { - int j; - for (j=0;j<numConstraints;j++) - { - btTypedConstraint* constraint = constraints[j]; - constraint->buildJacobian(); - constraint->internalSetAppliedImpulse(0.0f); - } - } - - //btRigidBody* rb0=0,*rb1=0; - - //if (1) - { - { - - int totalNumRows = 0; - int i; - - m_tmpConstraintSizesPool.resizeNoInitialize(numConstraints); - //calculate the total number of contraint rows - for (i=0;i<numConstraints;i++) - { - btTypedConstraint::btConstraintInfo1& info1 = m_tmpConstraintSizesPool[i]; - btJointFeedback* fb = constraints[i]->getJointFeedback(); - if (fb) - { - fb->m_appliedForceBodyA.setZero(); - fb->m_appliedTorqueBodyA.setZero(); - fb->m_appliedForceBodyB.setZero(); - fb->m_appliedTorqueBodyB.setZero(); - } - - if (constraints[i]->isEnabled()) - { - } - if (constraints[i]->isEnabled()) - { - constraints[i]->getInfo1(&info1); - } else - { - info1.m_numConstraintRows = 0; - info1.nub = 0; - } - totalNumRows += info1.m_numConstraintRows; - } - m_tmpSolverNonContactConstraintPool.resizeNoInitialize(totalNumRows); - - - ///setup the btSolverConstraints - int currentRow = 0; - - for (i=0;i<numConstraints;i++) - { - const btTypedConstraint::btConstraintInfo1& info1 = m_tmpConstraintSizesPool[i]; - - if (info1.m_numConstraintRows) - { - btAssert(currentRow<totalNumRows); - - btSolverConstraint* currentConstraintRow = &m_tmpSolverNonContactConstraintPool[currentRow]; - btTypedConstraint* constraint = constraints[i]; - btRigidBody& rbA = constraint->getRigidBodyA(); - btRigidBody& rbB = constraint->getRigidBodyB(); - - int solverBodyIdA = getOrInitSolverBody(rbA,infoGlobal.m_timeStep); - int solverBodyIdB = getOrInitSolverBody(rbB,infoGlobal.m_timeStep); - - btSolverBody* bodyAPtr = &m_tmpSolverBodyPool[solverBodyIdA]; - btSolverBody* bodyBPtr = &m_tmpSolverBodyPool[solverBodyIdB]; - - - - - int overrideNumSolverIterations = constraint->getOverrideNumSolverIterations() > 0 ? constraint->getOverrideNumSolverIterations() : infoGlobal.m_numIterations; - if (overrideNumSolverIterations>m_maxOverrideNumSolverIterations) - m_maxOverrideNumSolverIterations = overrideNumSolverIterations; - - - int j; - for ( j=0;j<info1.m_numConstraintRows;j++) - { - memset(¤tConstraintRow[j],0,sizeof(btSolverConstraint)); - currentConstraintRow[j].m_lowerLimit = -SIMD_INFINITY; - currentConstraintRow[j].m_upperLimit = SIMD_INFINITY; - currentConstraintRow[j].m_appliedImpulse = 0.f; - currentConstraintRow[j].m_appliedPushImpulse = 0.f; - currentConstraintRow[j].m_solverBodyIdA = solverBodyIdA; - currentConstraintRow[j].m_solverBodyIdB = solverBodyIdB; - currentConstraintRow[j].m_overrideNumSolverIterations = overrideNumSolverIterations; - } - - bodyAPtr->internalGetDeltaLinearVelocity().setValue(0.f,0.f,0.f); - bodyAPtr->internalGetDeltaAngularVelocity().setValue(0.f,0.f,0.f); - bodyAPtr->internalGetPushVelocity().setValue(0.f,0.f,0.f); - bodyAPtr->internalGetTurnVelocity().setValue(0.f,0.f,0.f); - bodyBPtr->internalGetDeltaLinearVelocity().setValue(0.f,0.f,0.f); - bodyBPtr->internalGetDeltaAngularVelocity().setValue(0.f,0.f,0.f); - bodyBPtr->internalGetPushVelocity().setValue(0.f,0.f,0.f); - bodyBPtr->internalGetTurnVelocity().setValue(0.f,0.f,0.f); - - - btTypedConstraint::btConstraintInfo2 info2; - info2.fps = 1.f/infoGlobal.m_timeStep; - info2.erp = infoGlobal.m_erp; - info2.m_J1linearAxis = currentConstraintRow->m_contactNormal1; - info2.m_J1angularAxis = currentConstraintRow->m_relpos1CrossNormal; - info2.m_J2linearAxis = currentConstraintRow->m_contactNormal2; - info2.m_J2angularAxis = currentConstraintRow->m_relpos2CrossNormal; - info2.rowskip = sizeof(btSolverConstraint)/sizeof(btScalar);//check this - ///the size of btSolverConstraint needs be a multiple of btScalar - btAssert(info2.rowskip*sizeof(btScalar)== sizeof(btSolverConstraint)); - info2.m_constraintError = ¤tConstraintRow->m_rhs; - currentConstraintRow->m_cfm = infoGlobal.m_globalCfm; - info2.m_damping = infoGlobal.m_damping; - info2.cfm = ¤tConstraintRow->m_cfm; - info2.m_lowerLimit = ¤tConstraintRow->m_lowerLimit; - info2.m_upperLimit = ¤tConstraintRow->m_upperLimit; - info2.m_numIterations = infoGlobal.m_numIterations; - constraints[i]->getInfo2(&info2); - - ///finalize the constraint setup - for ( j=0;j<info1.m_numConstraintRows;j++) - { - btSolverConstraint& solverConstraint = currentConstraintRow[j]; - - if (solverConstraint.m_upperLimit>=constraints[i]->getBreakingImpulseThreshold()) - { - solverConstraint.m_upperLimit = constraints[i]->getBreakingImpulseThreshold(); - } - - if (solverConstraint.m_lowerLimit<=-constraints[i]->getBreakingImpulseThreshold()) - { - solverConstraint.m_lowerLimit = -constraints[i]->getBreakingImpulseThreshold(); - } - - solverConstraint.m_originalContactPoint = constraint; - - { - const btVector3& ftorqueAxis1 = solverConstraint.m_relpos1CrossNormal; - solverConstraint.m_angularComponentA = constraint->getRigidBodyA().getInvInertiaTensorWorld()*ftorqueAxis1*constraint->getRigidBodyA().getAngularFactor(); - } - { - const btVector3& ftorqueAxis2 = solverConstraint.m_relpos2CrossNormal; - solverConstraint.m_angularComponentB = constraint->getRigidBodyB().getInvInertiaTensorWorld()*ftorqueAxis2*constraint->getRigidBodyB().getAngularFactor(); - } - - { - btVector3 iMJlA = solverConstraint.m_contactNormal1*rbA.getInvMass(); - btVector3 iMJaA = rbA.getInvInertiaTensorWorld()*solverConstraint.m_relpos1CrossNormal; - btVector3 iMJlB = solverConstraint.m_contactNormal2*rbB.getInvMass();//sign of normal? - btVector3 iMJaB = rbB.getInvInertiaTensorWorld()*solverConstraint.m_relpos2CrossNormal; - - btScalar sum = iMJlA.dot(solverConstraint.m_contactNormal1); - sum += iMJaA.dot(solverConstraint.m_relpos1CrossNormal); - sum += iMJlB.dot(solverConstraint.m_contactNormal2); - sum += iMJaB.dot(solverConstraint.m_relpos2CrossNormal); - btScalar fsum = btFabs(sum); - btAssert(fsum > SIMD_EPSILON); - btScalar sorRelaxation = 1.f;//todo: get from globalInfo? - solverConstraint.m_jacDiagABInv = fsum>SIMD_EPSILON?sorRelaxation/sum : 0.f; - } - - - - { - btScalar rel_vel; - btVector3 externalForceImpulseA = bodyAPtr->m_originalBody ? bodyAPtr->m_externalForceImpulse : btVector3(0,0,0); - btVector3 externalTorqueImpulseA = bodyAPtr->m_originalBody ? bodyAPtr->m_externalTorqueImpulse : btVector3(0,0,0); - - btVector3 externalForceImpulseB = bodyBPtr->m_originalBody ? bodyBPtr->m_externalForceImpulse : btVector3(0,0,0); - btVector3 externalTorqueImpulseB = bodyBPtr->m_originalBody ?bodyBPtr->m_externalTorqueImpulse : btVector3(0,0,0); - - btScalar vel1Dotn = solverConstraint.m_contactNormal1.dot(rbA.getLinearVelocity()+externalForceImpulseA) - + solverConstraint.m_relpos1CrossNormal.dot(rbA.getAngularVelocity()+externalTorqueImpulseA); - - btScalar vel2Dotn = solverConstraint.m_contactNormal2.dot(rbB.getLinearVelocity()+externalForceImpulseB) - + solverConstraint.m_relpos2CrossNormal.dot(rbB.getAngularVelocity()+externalTorqueImpulseB); - - rel_vel = vel1Dotn+vel2Dotn; - btScalar restitution = 0.f; - btScalar positionalError = solverConstraint.m_rhs;//already filled in by getConstraintInfo2 - btScalar velocityError = restitution - rel_vel * info2.m_damping; - btScalar penetrationImpulse = positionalError*solverConstraint.m_jacDiagABInv; - btScalar velocityImpulse = velocityError *solverConstraint.m_jacDiagABInv; - solverConstraint.m_rhs = penetrationImpulse+velocityImpulse; - solverConstraint.m_appliedImpulse = 0.f; - - - } - } - } - currentRow+=m_tmpConstraintSizesPool[i].m_numConstraintRows; - } - } - - convertContacts(manifoldPtr,numManifolds,infoGlobal); - - } - -// btContactSolverInfo info = infoGlobal; - - - int numNonContactPool = m_tmpSolverNonContactConstraintPool.size(); - int numConstraintPool = m_tmpSolverContactConstraintPool.size(); - int numFrictionPool = m_tmpSolverContactFrictionConstraintPool.size(); - - ///@todo: use stack allocator for such temporarily memory, same for solver bodies/constraints - m_orderNonContactConstraintPool.resizeNoInitialize(numNonContactPool); - if ((infoGlobal.m_solverMode & SOLVER_USE_2_FRICTION_DIRECTIONS)) - m_orderTmpConstraintPool.resizeNoInitialize(numConstraintPool*2); - else - m_orderTmpConstraintPool.resizeNoInitialize(numConstraintPool); - - m_orderFrictionConstraintPool.resizeNoInitialize(numFrictionPool); - { - int i; - for (i=0;i<numNonContactPool;i++) - { - m_orderNonContactConstraintPool[i] = i; - } - for (i=0;i<numConstraintPool;i++) - { - m_orderTmpConstraintPool[i] = i; - } - for (i=0;i<numFrictionPool;i++) - { - m_orderFrictionConstraintPool[i] = i; - } - } - - return 0.f; - -} - - -btScalar btSequentialImpulseConstraintSolver::solveSingleIteration(int iteration, btCollisionObject** /*bodies */,int /*numBodies*/,btPersistentManifold** /*manifoldPtr*/, int /*numManifolds*/,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* /*debugDrawer*/) -{ - btScalar leastSquaresResidual = 0.f; - - int numNonContactPool = m_tmpSolverNonContactConstraintPool.size(); - int numConstraintPool = m_tmpSolverContactConstraintPool.size(); - int numFrictionPool = m_tmpSolverContactFrictionConstraintPool.size(); - - if (infoGlobal.m_solverMode & SOLVER_RANDMIZE_ORDER) - { - if (1) // uncomment this for a bit less random ((iteration & 7) == 0) - { - - for (int j=0; j<numNonContactPool; ++j) { - int tmp = m_orderNonContactConstraintPool[j]; - int swapi = btRandInt2(j+1); - m_orderNonContactConstraintPool[j] = m_orderNonContactConstraintPool[swapi]; - m_orderNonContactConstraintPool[swapi] = tmp; - } - - //contact/friction constraints are not solved more than - if (iteration< infoGlobal.m_numIterations) - { - for (int j=0; j<numConstraintPool; ++j) { - int tmp = m_orderTmpConstraintPool[j]; - int swapi = btRandInt2(j+1); - m_orderTmpConstraintPool[j] = m_orderTmpConstraintPool[swapi]; - m_orderTmpConstraintPool[swapi] = tmp; - } - - for (int j=0; j<numFrictionPool; ++j) { - int tmp = m_orderFrictionConstraintPool[j]; - int swapi = btRandInt2(j+1); - m_orderFrictionConstraintPool[j] = m_orderFrictionConstraintPool[swapi]; - m_orderFrictionConstraintPool[swapi] = tmp; - } - } - } - } - - ///solve all joint constraints - for (int j=0;j<m_tmpSolverNonContactConstraintPool.size();j++) - { - btSolverConstraint& constraint = m_tmpSolverNonContactConstraintPool[m_orderNonContactConstraintPool[j]]; - if (iteration < constraint.m_overrideNumSolverIterations) - { - btScalar residual = resolveSingleConstraintRowGeneric(m_tmpSolverBodyPool[constraint.m_solverBodyIdA],m_tmpSolverBodyPool[constraint.m_solverBodyIdB],constraint); - leastSquaresResidual += residual*residual; - } - } - - if (iteration< infoGlobal.m_numIterations) - { - for (int j=0;j<numConstraints;j++) - { - if (constraints[j]->isEnabled()) - { - int bodyAid = getOrInitSolverBody(constraints[j]->getRigidBodyA(),infoGlobal.m_timeStep); - int bodyBid = getOrInitSolverBody(constraints[j]->getRigidBodyB(),infoGlobal.m_timeStep); - btSolverBody& bodyA = m_tmpSolverBodyPool[bodyAid]; - btSolverBody& bodyB = m_tmpSolverBodyPool[bodyBid]; - constraints[j]->solveConstraintObsolete(bodyA,bodyB,infoGlobal.m_timeStep); - } - } - - ///solve all contact constraints - if (infoGlobal.m_solverMode & SOLVER_INTERLEAVE_CONTACT_AND_FRICTION_CONSTRAINTS) - { - int numPoolConstraints = m_tmpSolverContactConstraintPool.size(); - int multiplier = (infoGlobal.m_solverMode & SOLVER_USE_2_FRICTION_DIRECTIONS)? 2 : 1; - - for (int c=0;c<numPoolConstraints;c++) - { - btScalar totalImpulse =0; - - { - const btSolverConstraint& solveManifold = m_tmpSolverContactConstraintPool[m_orderTmpConstraintPool[c]]; - btScalar residual = resolveSingleConstraintRowLowerLimit(m_tmpSolverBodyPool[solveManifold.m_solverBodyIdA],m_tmpSolverBodyPool[solveManifold.m_solverBodyIdB],solveManifold); - leastSquaresResidual += residual*residual; - - totalImpulse = solveManifold.m_appliedImpulse; - } - bool applyFriction = true; - if (applyFriction) - { - { - - btSolverConstraint& solveManifold = m_tmpSolverContactFrictionConstraintPool[m_orderFrictionConstraintPool[c*multiplier]]; - - if (totalImpulse>btScalar(0)) - { - solveManifold.m_lowerLimit = -(solveManifold.m_friction*totalImpulse); - solveManifold.m_upperLimit = solveManifold.m_friction*totalImpulse; - - btScalar residual = resolveSingleConstraintRowGeneric(m_tmpSolverBodyPool[solveManifold.m_solverBodyIdA],m_tmpSolverBodyPool[solveManifold.m_solverBodyIdB],solveManifold); - leastSquaresResidual += residual*residual; - } - } - - if (infoGlobal.m_solverMode & SOLVER_USE_2_FRICTION_DIRECTIONS) - { - - btSolverConstraint& solveManifold = m_tmpSolverContactFrictionConstraintPool[m_orderFrictionConstraintPool[c*multiplier+1]]; - - if (totalImpulse>btScalar(0)) - { - solveManifold.m_lowerLimit = -(solveManifold.m_friction*totalImpulse); - solveManifold.m_upperLimit = solveManifold.m_friction*totalImpulse; - - btScalar residual = resolveSingleConstraintRowGeneric(m_tmpSolverBodyPool[solveManifold.m_solverBodyIdA],m_tmpSolverBodyPool[solveManifold.m_solverBodyIdB],solveManifold); - leastSquaresResidual += residual*residual; - } - } - } - } - - } - else//SOLVER_INTERLEAVE_CONTACT_AND_FRICTION_CONSTRAINTS - { - //solve the friction constraints after all contact constraints, don't interleave them - int numPoolConstraints = m_tmpSolverContactConstraintPool.size(); - int j; - - for (j=0;j<numPoolConstraints;j++) - { - const btSolverConstraint& solveManifold = m_tmpSolverContactConstraintPool[m_orderTmpConstraintPool[j]]; - btScalar residual = resolveSingleConstraintRowLowerLimit(m_tmpSolverBodyPool[solveManifold.m_solverBodyIdA],m_tmpSolverBodyPool[solveManifold.m_solverBodyIdB],solveManifold); - leastSquaresResidual += residual*residual; - } - - - - ///solve all friction constraints - - int numFrictionPoolConstraints = m_tmpSolverContactFrictionConstraintPool.size(); - for (j=0;j<numFrictionPoolConstraints;j++) - { - btSolverConstraint& solveManifold = m_tmpSolverContactFrictionConstraintPool[m_orderFrictionConstraintPool[j]]; - btScalar totalImpulse = m_tmpSolverContactConstraintPool[solveManifold.m_frictionIndex].m_appliedImpulse; - - if (totalImpulse>btScalar(0)) - { - solveManifold.m_lowerLimit = -(solveManifold.m_friction*totalImpulse); - solveManifold.m_upperLimit = solveManifold.m_friction*totalImpulse; - - btScalar residual = resolveSingleConstraintRowGeneric(m_tmpSolverBodyPool[solveManifold.m_solverBodyIdA],m_tmpSolverBodyPool[solveManifold.m_solverBodyIdB],solveManifold); - leastSquaresResidual += residual*residual; - } - } - } - - - int numRollingFrictionPoolConstraints = m_tmpSolverContactRollingFrictionConstraintPool.size(); - for (int j=0;j<numRollingFrictionPoolConstraints;j++) - { - - btSolverConstraint& rollingFrictionConstraint = m_tmpSolverContactRollingFrictionConstraintPool[j]; - btScalar totalImpulse = m_tmpSolverContactConstraintPool[rollingFrictionConstraint.m_frictionIndex].m_appliedImpulse; - if (totalImpulse>btScalar(0)) - { - btScalar rollingFrictionMagnitude = rollingFrictionConstraint.m_friction*totalImpulse; - if (rollingFrictionMagnitude>rollingFrictionConstraint.m_friction) - rollingFrictionMagnitude = rollingFrictionConstraint.m_friction; - - rollingFrictionConstraint.m_lowerLimit = -rollingFrictionMagnitude; - rollingFrictionConstraint.m_upperLimit = rollingFrictionMagnitude; - - btScalar residual = resolveSingleConstraintRowGeneric(m_tmpSolverBodyPool[rollingFrictionConstraint.m_solverBodyIdA],m_tmpSolverBodyPool[rollingFrictionConstraint.m_solverBodyIdB],rollingFrictionConstraint); - leastSquaresResidual += residual*residual; - } - } - - - } - return leastSquaresResidual; -} - - -void btSequentialImpulseConstraintSolver::solveGroupCacheFriendlySplitImpulseIterations(btCollisionObject** bodies,int numBodies,btPersistentManifold** manifoldPtr, int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* debugDrawer) -{ - int iteration; - if (infoGlobal.m_splitImpulse) - { - { - for ( iteration = 0;iteration<infoGlobal.m_numIterations;iteration++) - { - btScalar leastSquaresResidual =0.f; - { - int numPoolConstraints = m_tmpSolverContactConstraintPool.size(); - int j; - for (j=0;j<numPoolConstraints;j++) - { - const btSolverConstraint& solveManifold = m_tmpSolverContactConstraintPool[m_orderTmpConstraintPool[j]]; - - btScalar residual = resolveSplitPenetrationImpulse(m_tmpSolverBodyPool[solveManifold.m_solverBodyIdA],m_tmpSolverBodyPool[solveManifold.m_solverBodyIdB],solveManifold); - leastSquaresResidual += residual*residual; - } - } - if (leastSquaresResidual <= infoGlobal.m_leastSquaresResidualThreshold || iteration>=(infoGlobal.m_numIterations-1)) - { -#ifdef VERBOSE_RESIDUAL_PRINTF - printf("residual = %f at iteration #%d\n",leastSquaresResidual,iteration); -#endif - break; - } - } - } - } -} - -btScalar btSequentialImpulseConstraintSolver::solveGroupCacheFriendlyIterations(btCollisionObject** bodies ,int numBodies,btPersistentManifold** manifoldPtr, int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* debugDrawer) -{ - BT_PROFILE("solveGroupCacheFriendlyIterations"); - - { - ///this is a special step to resolve penetrations (just for contacts) - solveGroupCacheFriendlySplitImpulseIterations(bodies ,numBodies,manifoldPtr, numManifolds,constraints,numConstraints,infoGlobal,debugDrawer); - - int maxIterations = m_maxOverrideNumSolverIterations > infoGlobal.m_numIterations? m_maxOverrideNumSolverIterations : infoGlobal.m_numIterations; - - for ( int iteration = 0 ; iteration< maxIterations ; iteration++) - //for ( int iteration = maxIterations-1 ; iteration >= 0;iteration--) - { - m_leastSquaresResidual = solveSingleIteration(iteration, bodies ,numBodies,manifoldPtr, numManifolds,constraints,numConstraints,infoGlobal,debugDrawer); - - if (m_leastSquaresResidual <= infoGlobal.m_leastSquaresResidualThreshold || (iteration>= (maxIterations-1))) - { -#ifdef VERBOSE_RESIDUAL_PRINTF - printf("residual = %f at iteration #%d\n",m_leastSquaresResidual,iteration); -#endif - break; - } - } - - } - return 0.f; -} - -btScalar btSequentialImpulseConstraintSolver::solveGroupCacheFriendlyFinish(btCollisionObject** bodies,int numBodies,const btContactSolverInfo& infoGlobal) -{ - int numPoolConstraints = m_tmpSolverContactConstraintPool.size(); - int i,j; - - if (infoGlobal.m_solverMode & SOLVER_USE_WARMSTARTING) - { - for (j=0;j<numPoolConstraints;j++) - { - const btSolverConstraint& solveManifold = m_tmpSolverContactConstraintPool[j]; - btManifoldPoint* pt = (btManifoldPoint*) solveManifold.m_originalContactPoint; - btAssert(pt); - pt->m_appliedImpulse = solveManifold.m_appliedImpulse; - // float f = m_tmpSolverContactFrictionConstraintPool[solveManifold.m_frictionIndex].m_appliedImpulse; - // printf("pt->m_appliedImpulseLateral1 = %f\n", f); - pt->m_appliedImpulseLateral1 = m_tmpSolverContactFrictionConstraintPool[solveManifold.m_frictionIndex].m_appliedImpulse; - //printf("pt->m_appliedImpulseLateral1 = %f\n", pt->m_appliedImpulseLateral1); - if ((infoGlobal.m_solverMode & SOLVER_USE_2_FRICTION_DIRECTIONS)) - { - pt->m_appliedImpulseLateral2 = m_tmpSolverContactFrictionConstraintPool[solveManifold.m_frictionIndex+1].m_appliedImpulse; - } - //do a callback here? - } - } - - numPoolConstraints = m_tmpSolverNonContactConstraintPool.size(); - for (j=0;j<numPoolConstraints;j++) - { - const btSolverConstraint& solverConstr = m_tmpSolverNonContactConstraintPool[j]; - btTypedConstraint* constr = (btTypedConstraint*)solverConstr.m_originalContactPoint; - btJointFeedback* fb = constr->getJointFeedback(); - if (fb) - { - fb->m_appliedForceBodyA += solverConstr.m_contactNormal1*solverConstr.m_appliedImpulse*constr->getRigidBodyA().getLinearFactor()/infoGlobal.m_timeStep; - fb->m_appliedForceBodyB += solverConstr.m_contactNormal2*solverConstr.m_appliedImpulse*constr->getRigidBodyB().getLinearFactor()/infoGlobal.m_timeStep; - fb->m_appliedTorqueBodyA += solverConstr.m_relpos1CrossNormal* constr->getRigidBodyA().getAngularFactor()*solverConstr.m_appliedImpulse/infoGlobal.m_timeStep; - fb->m_appliedTorqueBodyB += solverConstr.m_relpos2CrossNormal* constr->getRigidBodyB().getAngularFactor()*solverConstr.m_appliedImpulse/infoGlobal.m_timeStep; /*RGM ???? */ - - } - - constr->internalSetAppliedImpulse(solverConstr.m_appliedImpulse); - if (btFabs(solverConstr.m_appliedImpulse)>=constr->getBreakingImpulseThreshold()) - { - constr->setEnabled(false); - } - } - - - - for ( i=0;i<m_tmpSolverBodyPool.size();i++) - { - btRigidBody* body = m_tmpSolverBodyPool[i].m_originalBody; - if (body) - { - if (infoGlobal.m_splitImpulse) - m_tmpSolverBodyPool[i].writebackVelocityAndTransform(infoGlobal.m_timeStep, infoGlobal.m_splitImpulseTurnErp); - else - m_tmpSolverBodyPool[i].writebackVelocity(); - - m_tmpSolverBodyPool[i].m_originalBody->setLinearVelocity( - m_tmpSolverBodyPool[i].m_linearVelocity+ - m_tmpSolverBodyPool[i].m_externalForceImpulse); - - m_tmpSolverBodyPool[i].m_originalBody->setAngularVelocity( - m_tmpSolverBodyPool[i].m_angularVelocity+ - m_tmpSolverBodyPool[i].m_externalTorqueImpulse); - - if (infoGlobal.m_splitImpulse) - m_tmpSolverBodyPool[i].m_originalBody->setWorldTransform(m_tmpSolverBodyPool[i].m_worldTransform); - - m_tmpSolverBodyPool[i].m_originalBody->setCompanionId(-1); - } - } - - m_tmpSolverContactConstraintPool.resizeNoInitialize(0); - m_tmpSolverNonContactConstraintPool.resizeNoInitialize(0); - m_tmpSolverContactFrictionConstraintPool.resizeNoInitialize(0); - m_tmpSolverContactRollingFrictionConstraintPool.resizeNoInitialize(0); - - m_tmpSolverBodyPool.resizeNoInitialize(0); - return 0.f; -} - - - -/// btSequentialImpulseConstraintSolver Sequentially applies impulses -btScalar btSequentialImpulseConstraintSolver::solveGroup(btCollisionObject** bodies,int numBodies,btPersistentManifold** manifoldPtr, int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* debugDrawer,btDispatcher* /*dispatcher*/) -{ - - BT_PROFILE("solveGroup"); - //you need to provide at least some bodies - - solveGroupCacheFriendlySetup( bodies, numBodies, manifoldPtr, numManifolds,constraints, numConstraints,infoGlobal,debugDrawer); - - solveGroupCacheFriendlyIterations(bodies, numBodies, manifoldPtr, numManifolds,constraints, numConstraints,infoGlobal,debugDrawer); - - solveGroupCacheFriendlyFinish(bodies, numBodies, infoGlobal); - - return 0.f; -} - -void btSequentialImpulseConstraintSolver::reset() -{ - m_btSeed2 = 0; -} diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSequentialImpulseConstraintSolver.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSequentialImpulseConstraintSolver.h deleted file mode 100644 index 16c7eb74c1..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSequentialImpulseConstraintSolver.h +++ /dev/null @@ -1,196 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_SEQUENTIAL_IMPULSE_CONSTRAINT_SOLVER_H -#define BT_SEQUENTIAL_IMPULSE_CONSTRAINT_SOLVER_H - -class btIDebugDraw; -class btPersistentManifold; -class btDispatcher; -class btCollisionObject; -#include "BulletDynamics/ConstraintSolver/btTypedConstraint.h" -#include "BulletDynamics/ConstraintSolver/btContactSolverInfo.h" -#include "BulletDynamics/ConstraintSolver/btSolverBody.h" -#include "BulletDynamics/ConstraintSolver/btSolverConstraint.h" -#include "BulletCollision/NarrowPhaseCollision/btManifoldPoint.h" -#include "BulletDynamics/ConstraintSolver/btConstraintSolver.h" - -typedef btSimdScalar(*btSingleConstraintRowSolver)(btSolverBody&, btSolverBody&, const btSolverConstraint&); - -///The btSequentialImpulseConstraintSolver is a fast SIMD implementation of the Projected Gauss Seidel (iterative LCP) method. -ATTRIBUTE_ALIGNED16(class) btSequentialImpulseConstraintSolver : public btConstraintSolver -{ -protected: - btAlignedObjectArray<btSolverBody> m_tmpSolverBodyPool; - btConstraintArray m_tmpSolverContactConstraintPool; - btConstraintArray m_tmpSolverNonContactConstraintPool; - btConstraintArray m_tmpSolverContactFrictionConstraintPool; - btConstraintArray m_tmpSolverContactRollingFrictionConstraintPool; - - btAlignedObjectArray<int> m_orderTmpConstraintPool; - btAlignedObjectArray<int> m_orderNonContactConstraintPool; - btAlignedObjectArray<int> m_orderFrictionConstraintPool; - btAlignedObjectArray<btTypedConstraint::btConstraintInfo1> m_tmpConstraintSizesPool; - int m_maxOverrideNumSolverIterations; - int m_fixedBodyId; - // When running solvers on multiple threads, a race condition exists for Kinematic objects that - // participate in more than one solver. - // The getOrInitSolverBody() function writes the companionId of each body (storing the index of the solver body - // for the current solver). For normal dynamic bodies it isn't an issue because they can only be in one island - // (and therefore one thread) at a time. But kinematic bodies can be in multiple islands at once. - // To avoid this race condition, this solver does not write the companionId, instead it stores the solver body - // index in this solver-local table, indexed by the uniqueId of the body. - btAlignedObjectArray<int> m_kinematicBodyUniqueIdToSolverBodyTable; // only used for multithreading - - btSingleConstraintRowSolver m_resolveSingleConstraintRowGeneric; - btSingleConstraintRowSolver m_resolveSingleConstraintRowLowerLimit; - btSingleConstraintRowSolver m_resolveSplitPenetrationImpulse; - int m_cachedSolverMode; // used to check if SOLVER_SIMD flag has been changed - void setupSolverFunctions( bool useSimd ); - - btScalar m_leastSquaresResidual; - - void setupFrictionConstraint( btSolverConstraint& solverConstraint, const btVector3& normalAxis,int solverBodyIdA,int solverBodyIdB, - btManifoldPoint& cp,const btVector3& rel_pos1,const btVector3& rel_pos2, - btCollisionObject* colObj0,btCollisionObject* colObj1, btScalar relaxation, - const btContactSolverInfo& infoGlobal, - btScalar desiredVelocity=0., btScalar cfmSlip=0.); - - void setupTorsionalFrictionConstraint( btSolverConstraint& solverConstraint, const btVector3& normalAxis,int solverBodyIdA,int solverBodyIdB, - btManifoldPoint& cp,btScalar combinedTorsionalFriction, const btVector3& rel_pos1,const btVector3& rel_pos2, - btCollisionObject* colObj0,btCollisionObject* colObj1, btScalar relaxation, - btScalar desiredVelocity=0., btScalar cfmSlip=0.); - - btSolverConstraint& addFrictionConstraint(const btVector3& normalAxis,int solverBodyIdA,int solverBodyIdB,int frictionIndex,btManifoldPoint& cp,const btVector3& rel_pos1,const btVector3& rel_pos2,btCollisionObject* colObj0,btCollisionObject* colObj1, btScalar relaxation, const btContactSolverInfo& infoGlobal, btScalar desiredVelocity=0., btScalar cfmSlip=0.); - btSolverConstraint& addTorsionalFrictionConstraint(const btVector3& normalAxis,int solverBodyIdA,int solverBodyIdB,int frictionIndex,btManifoldPoint& cp,btScalar torsionalFriction, const btVector3& rel_pos1,const btVector3& rel_pos2,btCollisionObject* colObj0,btCollisionObject* colObj1, btScalar relaxation, btScalar desiredVelocity=0, btScalar cfmSlip=0.f); - - - void setupContactConstraint(btSolverConstraint& solverConstraint, int solverBodyIdA, int solverBodyIdB, btManifoldPoint& cp, - const btContactSolverInfo& infoGlobal,btScalar& relaxation, const btVector3& rel_pos1, const btVector3& rel_pos2); - - static void applyAnisotropicFriction(btCollisionObject* colObj,btVector3& frictionDirection, int frictionMode); - - void setFrictionConstraintImpulse( btSolverConstraint& solverConstraint, int solverBodyIdA,int solverBodyIdB, - btManifoldPoint& cp, const btContactSolverInfo& infoGlobal); - - ///m_btSeed2 is used for re-arranging the constraint rows. improves convergence/quality of friction - unsigned long m_btSeed2; - - - btScalar restitutionCurve(btScalar rel_vel, btScalar restitution, btScalar velocityThreshold); - - virtual void convertContacts(btPersistentManifold** manifoldPtr, int numManifolds, const btContactSolverInfo& infoGlobal); - - void convertContact(btPersistentManifold* manifold,const btContactSolverInfo& infoGlobal); - - - btSimdScalar resolveSplitPenetrationSIMD(btSolverBody& bodyA,btSolverBody& bodyB, const btSolverConstraint& contactConstraint) - { - return m_resolveSplitPenetrationImpulse( bodyA, bodyB, contactConstraint ); - } - - btSimdScalar resolveSplitPenetrationImpulseCacheFriendly(btSolverBody& bodyA,btSolverBody& bodyB, const btSolverConstraint& contactConstraint) - { - return m_resolveSplitPenetrationImpulse( bodyA, bodyB, contactConstraint ); - } - - //internal method - int getOrInitSolverBody(btCollisionObject& body,btScalar timeStep); - void initSolverBody(btSolverBody* solverBody, btCollisionObject* collisionObject, btScalar timeStep); - - btSimdScalar resolveSingleConstraintRowGeneric(btSolverBody& bodyA,btSolverBody& bodyB,const btSolverConstraint& contactConstraint); - btSimdScalar resolveSingleConstraintRowGenericSIMD(btSolverBody& bodyA,btSolverBody& bodyB,const btSolverConstraint& contactConstraint); - btSimdScalar resolveSingleConstraintRowLowerLimit(btSolverBody& bodyA,btSolverBody& bodyB,const btSolverConstraint& contactConstraint); - btSimdScalar resolveSingleConstraintRowLowerLimitSIMD(btSolverBody& bodyA,btSolverBody& bodyB,const btSolverConstraint& contactConstraint); - btSimdScalar resolveSplitPenetrationImpulse(btSolverBody& bodyA,btSolverBody& bodyB, const btSolverConstraint& contactConstraint) - { - return m_resolveSplitPenetrationImpulse( bodyA, bodyB, contactConstraint ); - } - -protected: - - - virtual void solveGroupCacheFriendlySplitImpulseIterations(btCollisionObject** bodies,int numBodies,btPersistentManifold** manifoldPtr, int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* debugDrawer); - virtual btScalar solveGroupCacheFriendlyFinish(btCollisionObject** bodies,int numBodies,const btContactSolverInfo& infoGlobal); - virtual btScalar solveSingleIteration(int iteration, btCollisionObject** bodies ,int numBodies,btPersistentManifold** manifoldPtr, int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* debugDrawer); - - virtual btScalar solveGroupCacheFriendlySetup(btCollisionObject** bodies,int numBodies,btPersistentManifold** manifoldPtr, int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* debugDrawer); - virtual btScalar solveGroupCacheFriendlyIterations(btCollisionObject** bodies,int numBodies,btPersistentManifold** manifoldPtr, int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* debugDrawer); - - -public: - - BT_DECLARE_ALIGNED_ALLOCATOR(); - - btSequentialImpulseConstraintSolver(); - virtual ~btSequentialImpulseConstraintSolver(); - - virtual btScalar solveGroup(btCollisionObject** bodies,int numBodies,btPersistentManifold** manifold,int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& info, btIDebugDraw* debugDrawer,btDispatcher* dispatcher); - - ///clear internal cached data and reset random seed - virtual void reset(); - - unsigned long btRand2(); - - int btRandInt2 (int n); - - void setRandSeed(unsigned long seed) - { - m_btSeed2 = seed; - } - unsigned long getRandSeed() const - { - return m_btSeed2; - } - - - virtual btConstraintSolverType getSolverType() const - { - return BT_SEQUENTIAL_IMPULSE_SOLVER; - } - - btSingleConstraintRowSolver getActiveConstraintRowSolverGeneric() - { - return m_resolveSingleConstraintRowGeneric; - } - void setConstraintRowSolverGeneric(btSingleConstraintRowSolver rowSolver) - { - m_resolveSingleConstraintRowGeneric = rowSolver; - } - btSingleConstraintRowSolver getActiveConstraintRowSolverLowerLimit() - { - return m_resolveSingleConstraintRowLowerLimit; - } - void setConstraintRowSolverLowerLimit(btSingleConstraintRowSolver rowSolver) - { - m_resolveSingleConstraintRowLowerLimit = rowSolver; - } - - ///Various implementations of solving a single constraint row using a generic equality constraint, using scalar reference, SSE2 or SSE4 - btSingleConstraintRowSolver getScalarConstraintRowSolverGeneric(); - btSingleConstraintRowSolver getSSE2ConstraintRowSolverGeneric(); - btSingleConstraintRowSolver getSSE4_1ConstraintRowSolverGeneric(); - - ///Various implementations of solving a single constraint row using an inequality (lower limit) constraint, using scalar reference, SSE2 or SSE4 - btSingleConstraintRowSolver getScalarConstraintRowSolverLowerLimit(); - btSingleConstraintRowSolver getSSE2ConstraintRowSolverLowerLimit(); - btSingleConstraintRowSolver getSSE4_1ConstraintRowSolverLowerLimit(); -}; - - - - -#endif //BT_SEQUENTIAL_IMPULSE_CONSTRAINT_SOLVER_H - diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSliderConstraint.cpp b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSliderConstraint.cpp deleted file mode 100644 index d63cef0316..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSliderConstraint.cpp +++ /dev/null @@ -1,855 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -/* -Added by Roman Ponomarev (rponom@gmail.com) -April 04, 2008 -*/ - - - -#include "btSliderConstraint.h" -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include "LinearMath/btTransformUtil.h" -#include <new> - -#define USE_OFFSET_FOR_CONSTANT_FRAME true - -void btSliderConstraint::initParams() -{ - m_lowerLinLimit = btScalar(1.0); - m_upperLinLimit = btScalar(-1.0); - m_lowerAngLimit = btScalar(0.); - m_upperAngLimit = btScalar(0.); - m_softnessDirLin = SLIDER_CONSTRAINT_DEF_SOFTNESS; - m_restitutionDirLin = SLIDER_CONSTRAINT_DEF_RESTITUTION; - m_dampingDirLin = btScalar(0.); - m_cfmDirLin = SLIDER_CONSTRAINT_DEF_CFM; - m_softnessDirAng = SLIDER_CONSTRAINT_DEF_SOFTNESS; - m_restitutionDirAng = SLIDER_CONSTRAINT_DEF_RESTITUTION; - m_dampingDirAng = btScalar(0.); - m_cfmDirAng = SLIDER_CONSTRAINT_DEF_CFM; - m_softnessOrthoLin = SLIDER_CONSTRAINT_DEF_SOFTNESS; - m_restitutionOrthoLin = SLIDER_CONSTRAINT_DEF_RESTITUTION; - m_dampingOrthoLin = SLIDER_CONSTRAINT_DEF_DAMPING; - m_cfmOrthoLin = SLIDER_CONSTRAINT_DEF_CFM; - m_softnessOrthoAng = SLIDER_CONSTRAINT_DEF_SOFTNESS; - m_restitutionOrthoAng = SLIDER_CONSTRAINT_DEF_RESTITUTION; - m_dampingOrthoAng = SLIDER_CONSTRAINT_DEF_DAMPING; - m_cfmOrthoAng = SLIDER_CONSTRAINT_DEF_CFM; - m_softnessLimLin = SLIDER_CONSTRAINT_DEF_SOFTNESS; - m_restitutionLimLin = SLIDER_CONSTRAINT_DEF_RESTITUTION; - m_dampingLimLin = SLIDER_CONSTRAINT_DEF_DAMPING; - m_cfmLimLin = SLIDER_CONSTRAINT_DEF_CFM; - m_softnessLimAng = SLIDER_CONSTRAINT_DEF_SOFTNESS; - m_restitutionLimAng = SLIDER_CONSTRAINT_DEF_RESTITUTION; - m_dampingLimAng = SLIDER_CONSTRAINT_DEF_DAMPING; - m_cfmLimAng = SLIDER_CONSTRAINT_DEF_CFM; - - m_poweredLinMotor = false; - m_targetLinMotorVelocity = btScalar(0.); - m_maxLinMotorForce = btScalar(0.); - m_accumulatedLinMotorImpulse = btScalar(0.0); - - m_poweredAngMotor = false; - m_targetAngMotorVelocity = btScalar(0.); - m_maxAngMotorForce = btScalar(0.); - m_accumulatedAngMotorImpulse = btScalar(0.0); - - m_flags = 0; - m_flags = 0; - - m_useOffsetForConstraintFrame = USE_OFFSET_FOR_CONSTANT_FRAME; - - calculateTransforms(m_rbA.getCenterOfMassTransform(),m_rbB.getCenterOfMassTransform()); -} - - - - - -btSliderConstraint::btSliderConstraint(btRigidBody& rbA, btRigidBody& rbB, const btTransform& frameInA, const btTransform& frameInB, bool useLinearReferenceFrameA) - : btTypedConstraint(SLIDER_CONSTRAINT_TYPE, rbA, rbB), - m_useSolveConstraintObsolete(false), - m_frameInA(frameInA), - m_frameInB(frameInB), - m_useLinearReferenceFrameA(useLinearReferenceFrameA) -{ - initParams(); -} - - - -btSliderConstraint::btSliderConstraint(btRigidBody& rbB, const btTransform& frameInB, bool useLinearReferenceFrameA) - : btTypedConstraint(SLIDER_CONSTRAINT_TYPE, getFixedBody(), rbB), - m_useSolveConstraintObsolete(false), - m_frameInB(frameInB), - m_useLinearReferenceFrameA(useLinearReferenceFrameA) -{ - ///not providing rigidbody A means implicitly using worldspace for body A - m_frameInA = rbB.getCenterOfMassTransform() * m_frameInB; -// m_frameInA.getOrigin() = m_rbA.getCenterOfMassTransform()(m_frameInA.getOrigin()); - - initParams(); -} - - - - - - -void btSliderConstraint::getInfo1(btConstraintInfo1* info) -{ - if (m_useSolveConstraintObsolete) - { - info->m_numConstraintRows = 0; - info->nub = 0; - } - else - { - info->m_numConstraintRows = 4; // Fixed 2 linear + 2 angular - info->nub = 2; - //prepare constraint - calculateTransforms(m_rbA.getCenterOfMassTransform(),m_rbB.getCenterOfMassTransform()); - testAngLimits(); - testLinLimits(); - if(getSolveLinLimit() || getPoweredLinMotor()) - { - info->m_numConstraintRows++; // limit 3rd linear as well - info->nub--; - } - if(getSolveAngLimit() || getPoweredAngMotor()) - { - info->m_numConstraintRows++; // limit 3rd angular as well - info->nub--; - } - } -} - -void btSliderConstraint::getInfo1NonVirtual(btConstraintInfo1* info) -{ - - info->m_numConstraintRows = 6; // Fixed 2 linear + 2 angular + 1 limit (even if not used) - info->nub = 0; -} - -void btSliderConstraint::getInfo2(btConstraintInfo2* info) -{ - getInfo2NonVirtual(info,m_rbA.getCenterOfMassTransform(),m_rbB.getCenterOfMassTransform(), m_rbA.getLinearVelocity(),m_rbB.getLinearVelocity(), m_rbA.getInvMass(),m_rbB.getInvMass()); -} - - - - - - - -void btSliderConstraint::calculateTransforms(const btTransform& transA,const btTransform& transB) -{ - if(m_useLinearReferenceFrameA || (!m_useSolveConstraintObsolete)) - { - m_calculatedTransformA = transA * m_frameInA; - m_calculatedTransformB = transB * m_frameInB; - } - else - { - m_calculatedTransformA = transB * m_frameInB; - m_calculatedTransformB = transA * m_frameInA; - } - m_realPivotAInW = m_calculatedTransformA.getOrigin(); - m_realPivotBInW = m_calculatedTransformB.getOrigin(); - m_sliderAxis = m_calculatedTransformA.getBasis().getColumn(0); // along X - if(m_useLinearReferenceFrameA || m_useSolveConstraintObsolete) - { - m_delta = m_realPivotBInW - m_realPivotAInW; - } - else - { - m_delta = m_realPivotAInW - m_realPivotBInW; - } - m_projPivotInW = m_realPivotAInW + m_sliderAxis.dot(m_delta) * m_sliderAxis; - btVector3 normalWorld; - int i; - //linear part - for(i = 0; i < 3; i++) - { - normalWorld = m_calculatedTransformA.getBasis().getColumn(i); - m_depth[i] = m_delta.dot(normalWorld); - } -} - - - -void btSliderConstraint::testLinLimits(void) -{ - m_solveLinLim = false; - m_linPos = m_depth[0]; - if(m_lowerLinLimit <= m_upperLinLimit) - { - if(m_depth[0] > m_upperLinLimit) - { - m_depth[0] -= m_upperLinLimit; - m_solveLinLim = true; - } - else if(m_depth[0] < m_lowerLinLimit) - { - m_depth[0] -= m_lowerLinLimit; - m_solveLinLim = true; - } - else - { - m_depth[0] = btScalar(0.); - } - } - else - { - m_depth[0] = btScalar(0.); - } -} - - - -void btSliderConstraint::testAngLimits(void) -{ - m_angDepth = btScalar(0.); - m_solveAngLim = false; - if(m_lowerAngLimit <= m_upperAngLimit) - { - const btVector3 axisA0 = m_calculatedTransformA.getBasis().getColumn(1); - const btVector3 axisA1 = m_calculatedTransformA.getBasis().getColumn(2); - const btVector3 axisB0 = m_calculatedTransformB.getBasis().getColumn(1); -// btScalar rot = btAtan2Fast(axisB0.dot(axisA1), axisB0.dot(axisA0)); - btScalar rot = btAtan2(axisB0.dot(axisA1), axisB0.dot(axisA0)); - rot = btAdjustAngleToLimits(rot, m_lowerAngLimit, m_upperAngLimit); - m_angPos = rot; - if(rot < m_lowerAngLimit) - { - m_angDepth = rot - m_lowerAngLimit; - m_solveAngLim = true; - } - else if(rot > m_upperAngLimit) - { - m_angDepth = rot - m_upperAngLimit; - m_solveAngLim = true; - } - } -} - -btVector3 btSliderConstraint::getAncorInA(void) -{ - btVector3 ancorInA; - ancorInA = m_realPivotAInW + (m_lowerLinLimit + m_upperLinLimit) * btScalar(0.5) * m_sliderAxis; - ancorInA = m_rbA.getCenterOfMassTransform().inverse() * ancorInA; - return ancorInA; -} - - - -btVector3 btSliderConstraint::getAncorInB(void) -{ - btVector3 ancorInB; - ancorInB = m_frameInB.getOrigin(); - return ancorInB; -} - - -void btSliderConstraint::getInfo2NonVirtual(btConstraintInfo2* info, const btTransform& transA,const btTransform& transB, const btVector3& linVelA,const btVector3& linVelB, btScalar rbAinvMass,btScalar rbBinvMass ) -{ - const btTransform& trA = getCalculatedTransformA(); - const btTransform& trB = getCalculatedTransformB(); - - btAssert(!m_useSolveConstraintObsolete); - int i, s = info->rowskip; - - btScalar signFact = m_useLinearReferenceFrameA ? btScalar(1.0f) : btScalar(-1.0f); - - // difference between frames in WCS - btVector3 ofs = trB.getOrigin() - trA.getOrigin(); - // now get weight factors depending on masses - btScalar miA = rbAinvMass; - btScalar miB = rbBinvMass; - bool hasStaticBody = (miA < SIMD_EPSILON) || (miB < SIMD_EPSILON); - btScalar miS = miA + miB; - btScalar factA, factB; - if(miS > btScalar(0.f)) - { - factA = miB / miS; - } - else - { - factA = btScalar(0.5f); - } - factB = btScalar(1.0f) - factA; - btVector3 ax1, p, q; - btVector3 ax1A = trA.getBasis().getColumn(0); - btVector3 ax1B = trB.getBasis().getColumn(0); - if(m_useOffsetForConstraintFrame) - { - // get the desired direction of slider axis - // as weighted sum of X-orthos of frameA and frameB in WCS - ax1 = ax1A * factA + ax1B * factB; - ax1.normalize(); - // construct two orthos to slider axis - btPlaneSpace1 (ax1, p, q); - } - else - { // old way - use frameA - ax1 = trA.getBasis().getColumn(0); - // get 2 orthos to slider axis (Y, Z) - p = trA.getBasis().getColumn(1); - q = trA.getBasis().getColumn(2); - } - // make rotations around these orthos equal - // the slider axis should be the only unconstrained - // rotational axis, the angular velocity of the two bodies perpendicular to - // the slider axis should be equal. thus the constraint equations are - // p*w1 - p*w2 = 0 - // q*w1 - q*w2 = 0 - // where p and q are unit vectors normal to the slider axis, and w1 and w2 - // are the angular velocity vectors of the two bodies. - info->m_J1angularAxis[0] = p[0]; - info->m_J1angularAxis[1] = p[1]; - info->m_J1angularAxis[2] = p[2]; - info->m_J1angularAxis[s+0] = q[0]; - info->m_J1angularAxis[s+1] = q[1]; - info->m_J1angularAxis[s+2] = q[2]; - - info->m_J2angularAxis[0] = -p[0]; - info->m_J2angularAxis[1] = -p[1]; - info->m_J2angularAxis[2] = -p[2]; - info->m_J2angularAxis[s+0] = -q[0]; - info->m_J2angularAxis[s+1] = -q[1]; - info->m_J2angularAxis[s+2] = -q[2]; - // compute the right hand side of the constraint equation. set relative - // body velocities along p and q to bring the slider back into alignment. - // if ax1A,ax1B are the unit length slider axes as computed from bodyA and - // bodyB, we need to rotate both bodies along the axis u = (ax1 x ax2). - // if "theta" is the angle between ax1 and ax2, we need an angular velocity - // along u to cover angle erp*theta in one step : - // |angular_velocity| = angle/time = erp*theta / stepsize - // = (erp*fps) * theta - // angular_velocity = |angular_velocity| * (ax1 x ax2) / |ax1 x ax2| - // = (erp*fps) * theta * (ax1 x ax2) / sin(theta) - // ...as ax1 and ax2 are unit length. if theta is smallish, - // theta ~= sin(theta), so - // angular_velocity = (erp*fps) * (ax1 x ax2) - // ax1 x ax2 is in the plane space of ax1, so we project the angular - // velocity to p and q to find the right hand side. -// btScalar k = info->fps * info->erp * getSoftnessOrthoAng(); - btScalar currERP = (m_flags & BT_SLIDER_FLAGS_ERP_ORTANG) ? m_softnessOrthoAng : m_softnessOrthoAng * info->erp; - btScalar k = info->fps * currERP; - - btVector3 u = ax1A.cross(ax1B); - info->m_constraintError[0] = k * u.dot(p); - info->m_constraintError[s] = k * u.dot(q); - if(m_flags & BT_SLIDER_FLAGS_CFM_ORTANG) - { - info->cfm[0] = m_cfmOrthoAng; - info->cfm[s] = m_cfmOrthoAng; - } - - int nrow = 1; // last filled row - int srow; - btScalar limit_err; - int limit; - - // next two rows. - // we want: velA + wA x relA == velB + wB x relB ... but this would - // result in three equations, so we project along two orthos to the slider axis - - btTransform bodyA_trans = transA; - btTransform bodyB_trans = transB; - nrow++; - int s2 = nrow * s; - nrow++; - int s3 = nrow * s; - btVector3 tmpA(0,0,0), tmpB(0,0,0), relA(0,0,0), relB(0,0,0), c(0,0,0); - if(m_useOffsetForConstraintFrame) - { - // get vector from bodyB to frameB in WCS - relB = trB.getOrigin() - bodyB_trans.getOrigin(); - // get its projection to slider axis - btVector3 projB = ax1 * relB.dot(ax1); - // get vector directed from bodyB to slider axis (and orthogonal to it) - btVector3 orthoB = relB - projB; - // same for bodyA - relA = trA.getOrigin() - bodyA_trans.getOrigin(); - btVector3 projA = ax1 * relA.dot(ax1); - btVector3 orthoA = relA - projA; - // get desired offset between frames A and B along slider axis - btScalar sliderOffs = m_linPos - m_depth[0]; - // desired vector from projection of center of bodyA to projection of center of bodyB to slider axis - btVector3 totalDist = projA + ax1 * sliderOffs - projB; - // get offset vectors relA and relB - relA = orthoA + totalDist * factA; - relB = orthoB - totalDist * factB; - // now choose average ortho to slider axis - p = orthoB * factA + orthoA * factB; - btScalar len2 = p.length2(); - if(len2 > SIMD_EPSILON) - { - p /= btSqrt(len2); - } - else - { - p = trA.getBasis().getColumn(1); - } - // make one more ortho - q = ax1.cross(p); - // fill two rows - tmpA = relA.cross(p); - tmpB = relB.cross(p); - for (i=0; i<3; i++) info->m_J1angularAxis[s2+i] = tmpA[i]; - for (i=0; i<3; i++) info->m_J2angularAxis[s2+i] = -tmpB[i]; - tmpA = relA.cross(q); - tmpB = relB.cross(q); - if(hasStaticBody && getSolveAngLimit()) - { // to make constraint between static and dynamic objects more rigid - // remove wA (or wB) from equation if angular limit is hit - tmpB *= factB; - tmpA *= factA; - } - for (i=0; i<3; i++) info->m_J1angularAxis[s3+i] = tmpA[i]; - for (i=0; i<3; i++) info->m_J2angularAxis[s3+i] = -tmpB[i]; - for (i=0; i<3; i++) info->m_J1linearAxis[s2+i] = p[i]; - for (i=0; i<3; i++) info->m_J1linearAxis[s3+i] = q[i]; - for (i=0; i<3; i++) info->m_J2linearAxis[s2+i] = -p[i]; - for (i=0; i<3; i++) info->m_J2linearAxis[s3+i] = -q[i]; - } - else - { // old way - maybe incorrect if bodies are not on the slider axis - // see discussion "Bug in slider constraint" http://bulletphysics.org/Bullet/phpBB3/viewtopic.php?f=9&t=4024&start=0 - c = bodyB_trans.getOrigin() - bodyA_trans.getOrigin(); - btVector3 tmp = c.cross(p); - for (i=0; i<3; i++) info->m_J1angularAxis[s2+i] = factA*tmp[i]; - for (i=0; i<3; i++) info->m_J2angularAxis[s2+i] = factB*tmp[i]; - tmp = c.cross(q); - for (i=0; i<3; i++) info->m_J1angularAxis[s3+i] = factA*tmp[i]; - for (i=0; i<3; i++) info->m_J2angularAxis[s3+i] = factB*tmp[i]; - - for (i=0; i<3; i++) info->m_J1linearAxis[s2+i] = p[i]; - for (i=0; i<3; i++) info->m_J1linearAxis[s3+i] = q[i]; - for (i=0; i<3; i++) info->m_J2linearAxis[s2+i] = -p[i]; - for (i=0; i<3; i++) info->m_J2linearAxis[s3+i] = -q[i]; - } - // compute two elements of right hand side - - // k = info->fps * info->erp * getSoftnessOrthoLin(); - currERP = (m_flags & BT_SLIDER_FLAGS_ERP_ORTLIN) ? m_softnessOrthoLin : m_softnessOrthoLin * info->erp; - k = info->fps * currERP; - - btScalar rhs = k * p.dot(ofs); - info->m_constraintError[s2] = rhs; - rhs = k * q.dot(ofs); - info->m_constraintError[s3] = rhs; - if(m_flags & BT_SLIDER_FLAGS_CFM_ORTLIN) - { - info->cfm[s2] = m_cfmOrthoLin; - info->cfm[s3] = m_cfmOrthoLin; - } - - - // check linear limits - limit_err = btScalar(0.0); - limit = 0; - if(getSolveLinLimit()) - { - limit_err = getLinDepth() * signFact; - limit = (limit_err > btScalar(0.0)) ? 2 : 1; - } - bool powered = getPoweredLinMotor(); - // if the slider has joint limits or motor, add in the extra row - if (limit || powered) - { - nrow++; - srow = nrow * info->rowskip; - info->m_J1linearAxis[srow+0] = ax1[0]; - info->m_J1linearAxis[srow+1] = ax1[1]; - info->m_J1linearAxis[srow+2] = ax1[2]; - info->m_J2linearAxis[srow+0] = -ax1[0]; - info->m_J2linearAxis[srow+1] = -ax1[1]; - info->m_J2linearAxis[srow+2] = -ax1[2]; - // linear torque decoupling step: - // - // we have to be careful that the linear constraint forces (+/- ax1) applied to the two bodies - // do not create a torque couple. in other words, the points that the - // constraint force is applied at must lie along the same ax1 axis. - // a torque couple will result in limited slider-jointed free - // bodies from gaining angular momentum. - if(m_useOffsetForConstraintFrame) - { - // this is needed only when bodyA and bodyB are both dynamic. - if(!hasStaticBody) - { - tmpA = relA.cross(ax1); - tmpB = relB.cross(ax1); - info->m_J1angularAxis[srow+0] = tmpA[0]; - info->m_J1angularAxis[srow+1] = tmpA[1]; - info->m_J1angularAxis[srow+2] = tmpA[2]; - info->m_J2angularAxis[srow+0] = -tmpB[0]; - info->m_J2angularAxis[srow+1] = -tmpB[1]; - info->m_J2angularAxis[srow+2] = -tmpB[2]; - } - } - else - { // The old way. May be incorrect if bodies are not on the slider axis - btVector3 ltd; // Linear Torque Decoupling vector (a torque) - ltd = c.cross(ax1); - info->m_J1angularAxis[srow+0] = factA*ltd[0]; - info->m_J1angularAxis[srow+1] = factA*ltd[1]; - info->m_J1angularAxis[srow+2] = factA*ltd[2]; - info->m_J2angularAxis[srow+0] = factB*ltd[0]; - info->m_J2angularAxis[srow+1] = factB*ltd[1]; - info->m_J2angularAxis[srow+2] = factB*ltd[2]; - } - // right-hand part - btScalar lostop = getLowerLinLimit(); - btScalar histop = getUpperLinLimit(); - if(limit && (lostop == histop)) - { // the joint motor is ineffective - powered = false; - } - info->m_constraintError[srow] = 0.; - info->m_lowerLimit[srow] = 0.; - info->m_upperLimit[srow] = 0.; - currERP = (m_flags & BT_SLIDER_FLAGS_ERP_LIMLIN) ? m_softnessLimLin : info->erp; - if(powered) - { - if(m_flags & BT_SLIDER_FLAGS_CFM_DIRLIN) - { - info->cfm[srow] = m_cfmDirLin; - } - btScalar tag_vel = getTargetLinMotorVelocity(); - btScalar mot_fact = getMotorFactor(m_linPos, m_lowerLinLimit, m_upperLinLimit, tag_vel, info->fps * currERP); - info->m_constraintError[srow] -= signFact * mot_fact * getTargetLinMotorVelocity(); - info->m_lowerLimit[srow] += -getMaxLinMotorForce() / info->fps; - info->m_upperLimit[srow] += getMaxLinMotorForce() / info->fps; - } - if(limit) - { - k = info->fps * currERP; - info->m_constraintError[srow] += k * limit_err; - if(m_flags & BT_SLIDER_FLAGS_CFM_LIMLIN) - { - info->cfm[srow] = m_cfmLimLin; - } - if(lostop == histop) - { // limited low and high simultaneously - info->m_lowerLimit[srow] = -SIMD_INFINITY; - info->m_upperLimit[srow] = SIMD_INFINITY; - } - else if(limit == 1) - { // low limit - info->m_lowerLimit[srow] = -SIMD_INFINITY; - info->m_upperLimit[srow] = 0; - } - else - { // high limit - info->m_lowerLimit[srow] = 0; - info->m_upperLimit[srow] = SIMD_INFINITY; - } - // bounce (we'll use slider parameter abs(1.0 - m_dampingLimLin) for that) - btScalar bounce = btFabs(btScalar(1.0) - getDampingLimLin()); - if(bounce > btScalar(0.0)) - { - btScalar vel = linVelA.dot(ax1); - vel -= linVelB.dot(ax1); - vel *= signFact; - // only apply bounce if the velocity is incoming, and if the - // resulting c[] exceeds what we already have. - if(limit == 1) - { // low limit - if(vel < 0) - { - btScalar newc = -bounce * vel; - if (newc > info->m_constraintError[srow]) - { - info->m_constraintError[srow] = newc; - } - } - } - else - { // high limit - all those computations are reversed - if(vel > 0) - { - btScalar newc = -bounce * vel; - if(newc < info->m_constraintError[srow]) - { - info->m_constraintError[srow] = newc; - } - } - } - } - info->m_constraintError[srow] *= getSoftnessLimLin(); - } // if(limit) - } // if linear limit - // check angular limits - limit_err = btScalar(0.0); - limit = 0; - if(getSolveAngLimit()) - { - limit_err = getAngDepth(); - limit = (limit_err > btScalar(0.0)) ? 1 : 2; - } - // if the slider has joint limits, add in the extra row - powered = getPoweredAngMotor(); - if(limit || powered) - { - nrow++; - srow = nrow * info->rowskip; - info->m_J1angularAxis[srow+0] = ax1[0]; - info->m_J1angularAxis[srow+1] = ax1[1]; - info->m_J1angularAxis[srow+2] = ax1[2]; - - info->m_J2angularAxis[srow+0] = -ax1[0]; - info->m_J2angularAxis[srow+1] = -ax1[1]; - info->m_J2angularAxis[srow+2] = -ax1[2]; - - btScalar lostop = getLowerAngLimit(); - btScalar histop = getUpperAngLimit(); - if(limit && (lostop == histop)) - { // the joint motor is ineffective - powered = false; - } - currERP = (m_flags & BT_SLIDER_FLAGS_ERP_LIMANG) ? m_softnessLimAng : info->erp; - if(powered) - { - if(m_flags & BT_SLIDER_FLAGS_CFM_DIRANG) - { - info->cfm[srow] = m_cfmDirAng; - } - btScalar mot_fact = getMotorFactor(m_angPos, m_lowerAngLimit, m_upperAngLimit, getTargetAngMotorVelocity(), info->fps * currERP); - info->m_constraintError[srow] = mot_fact * getTargetAngMotorVelocity(); - info->m_lowerLimit[srow] = -getMaxAngMotorForce() / info->fps; - info->m_upperLimit[srow] = getMaxAngMotorForce() / info->fps; - } - if(limit) - { - k = info->fps * currERP; - info->m_constraintError[srow] += k * limit_err; - if(m_flags & BT_SLIDER_FLAGS_CFM_LIMANG) - { - info->cfm[srow] = m_cfmLimAng; - } - if(lostop == histop) - { - // limited low and high simultaneously - info->m_lowerLimit[srow] = -SIMD_INFINITY; - info->m_upperLimit[srow] = SIMD_INFINITY; - } - else if(limit == 1) - { // low limit - info->m_lowerLimit[srow] = 0; - info->m_upperLimit[srow] = SIMD_INFINITY; - } - else - { // high limit - info->m_lowerLimit[srow] = -SIMD_INFINITY; - info->m_upperLimit[srow] = 0; - } - // bounce (we'll use slider parameter abs(1.0 - m_dampingLimAng) for that) - btScalar bounce = btFabs(btScalar(1.0) - getDampingLimAng()); - if(bounce > btScalar(0.0)) - { - btScalar vel = m_rbA.getAngularVelocity().dot(ax1); - vel -= m_rbB.getAngularVelocity().dot(ax1); - // only apply bounce if the velocity is incoming, and if the - // resulting c[] exceeds what we already have. - if(limit == 1) - { // low limit - if(vel < 0) - { - btScalar newc = -bounce * vel; - if(newc > info->m_constraintError[srow]) - { - info->m_constraintError[srow] = newc; - } - } - } - else - { // high limit - all those computations are reversed - if(vel > 0) - { - btScalar newc = -bounce * vel; - if(newc < info->m_constraintError[srow]) - { - info->m_constraintError[srow] = newc; - } - } - } - } - info->m_constraintError[srow] *= getSoftnessLimAng(); - } // if(limit) - } // if angular limit or powered -} - - -///override the default global value of a parameter (such as ERP or CFM), optionally provide the axis (0..5). -///If no axis is provided, it uses the default axis for this constraint. -void btSliderConstraint::setParam(int num, btScalar value, int axis) -{ - switch(num) - { - case BT_CONSTRAINT_STOP_ERP : - if(axis < 1) - { - m_softnessLimLin = value; - m_flags |= BT_SLIDER_FLAGS_ERP_LIMLIN; - } - else if(axis < 3) - { - m_softnessOrthoLin = value; - m_flags |= BT_SLIDER_FLAGS_ERP_ORTLIN; - } - else if(axis == 3) - { - m_softnessLimAng = value; - m_flags |= BT_SLIDER_FLAGS_ERP_LIMANG; - } - else if(axis < 6) - { - m_softnessOrthoAng = value; - m_flags |= BT_SLIDER_FLAGS_ERP_ORTANG; - } - else - { - btAssertConstrParams(0); - } - break; - case BT_CONSTRAINT_CFM : - if(axis < 1) - { - m_cfmDirLin = value; - m_flags |= BT_SLIDER_FLAGS_CFM_DIRLIN; - } - else if(axis == 3) - { - m_cfmDirAng = value; - m_flags |= BT_SLIDER_FLAGS_CFM_DIRANG; - } - else - { - btAssertConstrParams(0); - } - break; - case BT_CONSTRAINT_STOP_CFM : - if(axis < 1) - { - m_cfmLimLin = value; - m_flags |= BT_SLIDER_FLAGS_CFM_LIMLIN; - } - else if(axis < 3) - { - m_cfmOrthoLin = value; - m_flags |= BT_SLIDER_FLAGS_CFM_ORTLIN; - } - else if(axis == 3) - { - m_cfmLimAng = value; - m_flags |= BT_SLIDER_FLAGS_CFM_LIMANG; - } - else if(axis < 6) - { - m_cfmOrthoAng = value; - m_flags |= BT_SLIDER_FLAGS_CFM_ORTANG; - } - else - { - btAssertConstrParams(0); - } - break; - } -} - -///return the local value of parameter -btScalar btSliderConstraint::getParam(int num, int axis) const -{ - btScalar retVal(SIMD_INFINITY); - switch(num) - { - case BT_CONSTRAINT_STOP_ERP : - if(axis < 1) - { - btAssertConstrParams(m_flags & BT_SLIDER_FLAGS_ERP_LIMLIN); - retVal = m_softnessLimLin; - } - else if(axis < 3) - { - btAssertConstrParams(m_flags & BT_SLIDER_FLAGS_ERP_ORTLIN); - retVal = m_softnessOrthoLin; - } - else if(axis == 3) - { - btAssertConstrParams(m_flags & BT_SLIDER_FLAGS_ERP_LIMANG); - retVal = m_softnessLimAng; - } - else if(axis < 6) - { - btAssertConstrParams(m_flags & BT_SLIDER_FLAGS_ERP_ORTANG); - retVal = m_softnessOrthoAng; - } - else - { - btAssertConstrParams(0); - } - break; - case BT_CONSTRAINT_CFM : - if(axis < 1) - { - btAssertConstrParams(m_flags & BT_SLIDER_FLAGS_CFM_DIRLIN); - retVal = m_cfmDirLin; - } - else if(axis == 3) - { - btAssertConstrParams(m_flags & BT_SLIDER_FLAGS_CFM_DIRANG); - retVal = m_cfmDirAng; - } - else - { - btAssertConstrParams(0); - } - break; - case BT_CONSTRAINT_STOP_CFM : - if(axis < 1) - { - btAssertConstrParams(m_flags & BT_SLIDER_FLAGS_CFM_LIMLIN); - retVal = m_cfmLimLin; - } - else if(axis < 3) - { - btAssertConstrParams(m_flags & BT_SLIDER_FLAGS_CFM_ORTLIN); - retVal = m_cfmOrthoLin; - } - else if(axis == 3) - { - btAssertConstrParams(m_flags & BT_SLIDER_FLAGS_CFM_LIMANG); - retVal = m_cfmLimAng; - } - else if(axis < 6) - { - btAssertConstrParams(m_flags & BT_SLIDER_FLAGS_CFM_ORTANG); - retVal = m_cfmOrthoAng; - } - else - { - btAssertConstrParams(0); - } - break; - } - return retVal; -} - - - diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSliderConstraint.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSliderConstraint.h deleted file mode 100644 index 1957f08a96..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSliderConstraint.h +++ /dev/null @@ -1,368 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -/* -Added by Roman Ponomarev (rponom@gmail.com) -April 04, 2008 - -TODO: - - add clamping od accumulated impulse to improve stability - - add conversion for ODE constraint solver -*/ - -#ifndef BT_SLIDER_CONSTRAINT_H -#define BT_SLIDER_CONSTRAINT_H - -#include "LinearMath/btScalar.h"//for BT_USE_DOUBLE_PRECISION - -#ifdef BT_USE_DOUBLE_PRECISION -#define btSliderConstraintData2 btSliderConstraintDoubleData -#define btSliderConstraintDataName "btSliderConstraintDoubleData" -#else -#define btSliderConstraintData2 btSliderConstraintData -#define btSliderConstraintDataName "btSliderConstraintData" -#endif //BT_USE_DOUBLE_PRECISION - -#include "LinearMath/btVector3.h" -#include "btJacobianEntry.h" -#include "btTypedConstraint.h" - - - -class btRigidBody; - - - -#define SLIDER_CONSTRAINT_DEF_SOFTNESS (btScalar(1.0)) -#define SLIDER_CONSTRAINT_DEF_DAMPING (btScalar(1.0)) -#define SLIDER_CONSTRAINT_DEF_RESTITUTION (btScalar(0.7)) -#define SLIDER_CONSTRAINT_DEF_CFM (btScalar(0.f)) - - -enum btSliderFlags -{ - BT_SLIDER_FLAGS_CFM_DIRLIN = (1 << 0), - BT_SLIDER_FLAGS_ERP_DIRLIN = (1 << 1), - BT_SLIDER_FLAGS_CFM_DIRANG = (1 << 2), - BT_SLIDER_FLAGS_ERP_DIRANG = (1 << 3), - BT_SLIDER_FLAGS_CFM_ORTLIN = (1 << 4), - BT_SLIDER_FLAGS_ERP_ORTLIN = (1 << 5), - BT_SLIDER_FLAGS_CFM_ORTANG = (1 << 6), - BT_SLIDER_FLAGS_ERP_ORTANG = (1 << 7), - BT_SLIDER_FLAGS_CFM_LIMLIN = (1 << 8), - BT_SLIDER_FLAGS_ERP_LIMLIN = (1 << 9), - BT_SLIDER_FLAGS_CFM_LIMANG = (1 << 10), - BT_SLIDER_FLAGS_ERP_LIMANG = (1 << 11) -}; - - -ATTRIBUTE_ALIGNED16(class) btSliderConstraint : public btTypedConstraint -{ -protected: - ///for backwards compatibility during the transition to 'getInfo/getInfo2' - bool m_useSolveConstraintObsolete; - bool m_useOffsetForConstraintFrame; - btTransform m_frameInA; - btTransform m_frameInB; - // use frameA fo define limits, if true - bool m_useLinearReferenceFrameA; - // linear limits - btScalar m_lowerLinLimit; - btScalar m_upperLinLimit; - // angular limits - btScalar m_lowerAngLimit; - btScalar m_upperAngLimit; - // softness, restitution and damping for different cases - // DirLin - moving inside linear limits - // LimLin - hitting linear limit - // DirAng - moving inside angular limits - // LimAng - hitting angular limit - // OrthoLin, OrthoAng - against constraint axis - btScalar m_softnessDirLin; - btScalar m_restitutionDirLin; - btScalar m_dampingDirLin; - btScalar m_cfmDirLin; - - btScalar m_softnessDirAng; - btScalar m_restitutionDirAng; - btScalar m_dampingDirAng; - btScalar m_cfmDirAng; - - btScalar m_softnessLimLin; - btScalar m_restitutionLimLin; - btScalar m_dampingLimLin; - btScalar m_cfmLimLin; - - btScalar m_softnessLimAng; - btScalar m_restitutionLimAng; - btScalar m_dampingLimAng; - btScalar m_cfmLimAng; - - btScalar m_softnessOrthoLin; - btScalar m_restitutionOrthoLin; - btScalar m_dampingOrthoLin; - btScalar m_cfmOrthoLin; - - btScalar m_softnessOrthoAng; - btScalar m_restitutionOrthoAng; - btScalar m_dampingOrthoAng; - btScalar m_cfmOrthoAng; - - // for interlal use - bool m_solveLinLim; - bool m_solveAngLim; - - int m_flags; - - btJacobianEntry m_jacLin[3]; - btScalar m_jacLinDiagABInv[3]; - - btJacobianEntry m_jacAng[3]; - - btScalar m_timeStep; - btTransform m_calculatedTransformA; - btTransform m_calculatedTransformB; - - btVector3 m_sliderAxis; - btVector3 m_realPivotAInW; - btVector3 m_realPivotBInW; - btVector3 m_projPivotInW; - btVector3 m_delta; - btVector3 m_depth; - btVector3 m_relPosA; - btVector3 m_relPosB; - - btScalar m_linPos; - btScalar m_angPos; - - btScalar m_angDepth; - btScalar m_kAngle; - - bool m_poweredLinMotor; - btScalar m_targetLinMotorVelocity; - btScalar m_maxLinMotorForce; - btScalar m_accumulatedLinMotorImpulse; - - bool m_poweredAngMotor; - btScalar m_targetAngMotorVelocity; - btScalar m_maxAngMotorForce; - btScalar m_accumulatedAngMotorImpulse; - - //------------------------ - void initParams(); -public: - BT_DECLARE_ALIGNED_ALLOCATOR(); - - // constructors - btSliderConstraint(btRigidBody& rbA, btRigidBody& rbB, const btTransform& frameInA, const btTransform& frameInB ,bool useLinearReferenceFrameA); - btSliderConstraint(btRigidBody& rbB, const btTransform& frameInB, bool useLinearReferenceFrameA); - - // overrides - - virtual void getInfo1 (btConstraintInfo1* info); - - void getInfo1NonVirtual(btConstraintInfo1* info); - - virtual void getInfo2 (btConstraintInfo2* info); - - void getInfo2NonVirtual(btConstraintInfo2* info, const btTransform& transA, const btTransform& transB,const btVector3& linVelA,const btVector3& linVelB, btScalar rbAinvMass,btScalar rbBinvMass); - - - // access - const btRigidBody& getRigidBodyA() const { return m_rbA; } - const btRigidBody& getRigidBodyB() const { return m_rbB; } - const btTransform & getCalculatedTransformA() const { return m_calculatedTransformA; } - const btTransform & getCalculatedTransformB() const { return m_calculatedTransformB; } - const btTransform & getFrameOffsetA() const { return m_frameInA; } - const btTransform & getFrameOffsetB() const { return m_frameInB; } - btTransform & getFrameOffsetA() { return m_frameInA; } - btTransform & getFrameOffsetB() { return m_frameInB; } - btScalar getLowerLinLimit() { return m_lowerLinLimit; } - void setLowerLinLimit(btScalar lowerLimit) { m_lowerLinLimit = lowerLimit; } - btScalar getUpperLinLimit() { return m_upperLinLimit; } - void setUpperLinLimit(btScalar upperLimit) { m_upperLinLimit = upperLimit; } - btScalar getLowerAngLimit() { return m_lowerAngLimit; } - void setLowerAngLimit(btScalar lowerLimit) { m_lowerAngLimit = btNormalizeAngle(lowerLimit); } - btScalar getUpperAngLimit() { return m_upperAngLimit; } - void setUpperAngLimit(btScalar upperLimit) { m_upperAngLimit = btNormalizeAngle(upperLimit); } - bool getUseLinearReferenceFrameA() { return m_useLinearReferenceFrameA; } - btScalar getSoftnessDirLin() { return m_softnessDirLin; } - btScalar getRestitutionDirLin() { return m_restitutionDirLin; } - btScalar getDampingDirLin() { return m_dampingDirLin ; } - btScalar getSoftnessDirAng() { return m_softnessDirAng; } - btScalar getRestitutionDirAng() { return m_restitutionDirAng; } - btScalar getDampingDirAng() { return m_dampingDirAng; } - btScalar getSoftnessLimLin() { return m_softnessLimLin; } - btScalar getRestitutionLimLin() { return m_restitutionLimLin; } - btScalar getDampingLimLin() { return m_dampingLimLin; } - btScalar getSoftnessLimAng() { return m_softnessLimAng; } - btScalar getRestitutionLimAng() { return m_restitutionLimAng; } - btScalar getDampingLimAng() { return m_dampingLimAng; } - btScalar getSoftnessOrthoLin() { return m_softnessOrthoLin; } - btScalar getRestitutionOrthoLin() { return m_restitutionOrthoLin; } - btScalar getDampingOrthoLin() { return m_dampingOrthoLin; } - btScalar getSoftnessOrthoAng() { return m_softnessOrthoAng; } - btScalar getRestitutionOrthoAng() { return m_restitutionOrthoAng; } - btScalar getDampingOrthoAng() { return m_dampingOrthoAng; } - void setSoftnessDirLin(btScalar softnessDirLin) { m_softnessDirLin = softnessDirLin; } - void setRestitutionDirLin(btScalar restitutionDirLin) { m_restitutionDirLin = restitutionDirLin; } - void setDampingDirLin(btScalar dampingDirLin) { m_dampingDirLin = dampingDirLin; } - void setSoftnessDirAng(btScalar softnessDirAng) { m_softnessDirAng = softnessDirAng; } - void setRestitutionDirAng(btScalar restitutionDirAng) { m_restitutionDirAng = restitutionDirAng; } - void setDampingDirAng(btScalar dampingDirAng) { m_dampingDirAng = dampingDirAng; } - void setSoftnessLimLin(btScalar softnessLimLin) { m_softnessLimLin = softnessLimLin; } - void setRestitutionLimLin(btScalar restitutionLimLin) { m_restitutionLimLin = restitutionLimLin; } - void setDampingLimLin(btScalar dampingLimLin) { m_dampingLimLin = dampingLimLin; } - void setSoftnessLimAng(btScalar softnessLimAng) { m_softnessLimAng = softnessLimAng; } - void setRestitutionLimAng(btScalar restitutionLimAng) { m_restitutionLimAng = restitutionLimAng; } - void setDampingLimAng(btScalar dampingLimAng) { m_dampingLimAng = dampingLimAng; } - void setSoftnessOrthoLin(btScalar softnessOrthoLin) { m_softnessOrthoLin = softnessOrthoLin; } - void setRestitutionOrthoLin(btScalar restitutionOrthoLin) { m_restitutionOrthoLin = restitutionOrthoLin; } - void setDampingOrthoLin(btScalar dampingOrthoLin) { m_dampingOrthoLin = dampingOrthoLin; } - void setSoftnessOrthoAng(btScalar softnessOrthoAng) { m_softnessOrthoAng = softnessOrthoAng; } - void setRestitutionOrthoAng(btScalar restitutionOrthoAng) { m_restitutionOrthoAng = restitutionOrthoAng; } - void setDampingOrthoAng(btScalar dampingOrthoAng) { m_dampingOrthoAng = dampingOrthoAng; } - void setPoweredLinMotor(bool onOff) { m_poweredLinMotor = onOff; } - bool getPoweredLinMotor() { return m_poweredLinMotor; } - void setTargetLinMotorVelocity(btScalar targetLinMotorVelocity) { m_targetLinMotorVelocity = targetLinMotorVelocity; } - btScalar getTargetLinMotorVelocity() { return m_targetLinMotorVelocity; } - void setMaxLinMotorForce(btScalar maxLinMotorForce) { m_maxLinMotorForce = maxLinMotorForce; } - btScalar getMaxLinMotorForce() { return m_maxLinMotorForce; } - void setPoweredAngMotor(bool onOff) { m_poweredAngMotor = onOff; } - bool getPoweredAngMotor() { return m_poweredAngMotor; } - void setTargetAngMotorVelocity(btScalar targetAngMotorVelocity) { m_targetAngMotorVelocity = targetAngMotorVelocity; } - btScalar getTargetAngMotorVelocity() { return m_targetAngMotorVelocity; } - void setMaxAngMotorForce(btScalar maxAngMotorForce) { m_maxAngMotorForce = maxAngMotorForce; } - btScalar getMaxAngMotorForce() { return m_maxAngMotorForce; } - - btScalar getLinearPos() const { return m_linPos; } - btScalar getAngularPos() const { return m_angPos; } - - - - // access for ODE solver - bool getSolveLinLimit() { return m_solveLinLim; } - btScalar getLinDepth() { return m_depth[0]; } - bool getSolveAngLimit() { return m_solveAngLim; } - btScalar getAngDepth() { return m_angDepth; } - // shared code used by ODE solver - void calculateTransforms(const btTransform& transA,const btTransform& transB); - void testLinLimits(); - void testAngLimits(); - // access for PE Solver - btVector3 getAncorInA(); - btVector3 getAncorInB(); - // access for UseFrameOffset - bool getUseFrameOffset() { return m_useOffsetForConstraintFrame; } - void setUseFrameOffset(bool frameOffsetOnOff) { m_useOffsetForConstraintFrame = frameOffsetOnOff; } - - void setFrames(const btTransform& frameA, const btTransform& frameB) - { - m_frameInA=frameA; - m_frameInB=frameB; - calculateTransforms(m_rbA.getCenterOfMassTransform(),m_rbB.getCenterOfMassTransform()); - buildJacobian(); - } - - - ///override the default global value of a parameter (such as ERP or CFM), optionally provide the axis (0..5). - ///If no axis is provided, it uses the default axis for this constraint. - virtual void setParam(int num, btScalar value, int axis = -1); - ///return the local value of parameter - virtual btScalar getParam(int num, int axis = -1) const; - - virtual int getFlags() const - { - return m_flags; - } - - virtual int calculateSerializeBufferSize() const; - - ///fills the dataBuffer and returns the struct name (and 0 on failure) - virtual const char* serialize(void* dataBuffer, btSerializer* serializer) const; - - -}; - - -///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64 - - -struct btSliderConstraintData -{ - btTypedConstraintData m_typeConstraintData; - btTransformFloatData m_rbAFrame; // constraint axii. Assumes z is hinge axis. - btTransformFloatData m_rbBFrame; - - float m_linearUpperLimit; - float m_linearLowerLimit; - - float m_angularUpperLimit; - float m_angularLowerLimit; - - int m_useLinearReferenceFrameA; - int m_useOffsetForConstraintFrame; - -}; - - -struct btSliderConstraintDoubleData -{ - btTypedConstraintDoubleData m_typeConstraintData; - btTransformDoubleData m_rbAFrame; // constraint axii. Assumes z is hinge axis. - btTransformDoubleData m_rbBFrame; - - double m_linearUpperLimit; - double m_linearLowerLimit; - - double m_angularUpperLimit; - double m_angularLowerLimit; - - int m_useLinearReferenceFrameA; - int m_useOffsetForConstraintFrame; - -}; - -SIMD_FORCE_INLINE int btSliderConstraint::calculateSerializeBufferSize() const -{ - return sizeof(btSliderConstraintData2); -} - - ///fills the dataBuffer and returns the struct name (and 0 on failure) -SIMD_FORCE_INLINE const char* btSliderConstraint::serialize(void* dataBuffer, btSerializer* serializer) const -{ - - btSliderConstraintData2* sliderData = (btSliderConstraintData2*) dataBuffer; - btTypedConstraint::serialize(&sliderData->m_typeConstraintData,serializer); - - m_frameInA.serialize(sliderData->m_rbAFrame); - m_frameInB.serialize(sliderData->m_rbBFrame); - - sliderData->m_linearUpperLimit = m_upperLinLimit; - sliderData->m_linearLowerLimit = m_lowerLinLimit; - - sliderData->m_angularUpperLimit = m_upperAngLimit; - sliderData->m_angularLowerLimit = m_lowerAngLimit; - - sliderData->m_useLinearReferenceFrameA = m_useLinearReferenceFrameA; - sliderData->m_useOffsetForConstraintFrame = m_useOffsetForConstraintFrame; - - return btSliderConstraintDataName; -} - - - -#endif //BT_SLIDER_CONSTRAINT_H - diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSolve2LinearConstraint.cpp b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSolve2LinearConstraint.cpp deleted file mode 100644 index 0c7dbd668b..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSolve2LinearConstraint.cpp +++ /dev/null @@ -1,255 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - - - -#include "btSolve2LinearConstraint.h" - -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include "LinearMath/btVector3.h" -#include "btJacobianEntry.h" - - -void btSolve2LinearConstraint::resolveUnilateralPairConstraint( - btRigidBody* body1, - btRigidBody* body2, - - const btMatrix3x3& world2A, - const btMatrix3x3& world2B, - - const btVector3& invInertiaADiag, - const btScalar invMassA, - const btVector3& linvelA,const btVector3& angvelA, - const btVector3& rel_posA1, - const btVector3& invInertiaBDiag, - const btScalar invMassB, - const btVector3& linvelB,const btVector3& angvelB, - const btVector3& rel_posA2, - - btScalar depthA, const btVector3& normalA, - const btVector3& rel_posB1,const btVector3& rel_posB2, - btScalar depthB, const btVector3& normalB, - btScalar& imp0,btScalar& imp1) -{ - (void)linvelA; - (void)linvelB; - (void)angvelB; - (void)angvelA; - - - - imp0 = btScalar(0.); - imp1 = btScalar(0.); - - btScalar len = btFabs(normalA.length()) - btScalar(1.); - if (btFabs(len) >= SIMD_EPSILON) - return; - - btAssert(len < SIMD_EPSILON); - - - //this jacobian entry could be re-used for all iterations - btJacobianEntry jacA(world2A,world2B,rel_posA1,rel_posA2,normalA,invInertiaADiag,invMassA, - invInertiaBDiag,invMassB); - btJacobianEntry jacB(world2A,world2B,rel_posB1,rel_posB2,normalB,invInertiaADiag,invMassA, - invInertiaBDiag,invMassB); - - //const btScalar vel0 = jacA.getRelativeVelocity(linvelA,angvelA,linvelB,angvelB); - //const btScalar vel1 = jacB.getRelativeVelocity(linvelA,angvelA,linvelB,angvelB); - - const btScalar vel0 = normalA.dot(body1->getVelocityInLocalPoint(rel_posA1)-body2->getVelocityInLocalPoint(rel_posA1)); - const btScalar vel1 = normalB.dot(body1->getVelocityInLocalPoint(rel_posB1)-body2->getVelocityInLocalPoint(rel_posB1)); - -// btScalar penetrationImpulse = (depth*contactTau*timeCorrection) * massTerm;//jacDiagABInv - btScalar massTerm = btScalar(1.) / (invMassA + invMassB); - - - // calculate rhs (or error) terms - const btScalar dv0 = depthA * m_tau * massTerm - vel0 * m_damping; - const btScalar dv1 = depthB * m_tau * massTerm - vel1 * m_damping; - - - // dC/dv * dv = -C - - // jacobian * impulse = -error - // - - //impulse = jacobianInverse * -error - - // inverting 2x2 symmetric system (offdiagonal are equal!) - // - - - btScalar nonDiag = jacA.getNonDiagonal(jacB,invMassA,invMassB); - btScalar invDet = btScalar(1.0) / (jacA.getDiagonal() * jacB.getDiagonal() - nonDiag * nonDiag ); - - //imp0 = dv0 * jacA.getDiagonal() * invDet + dv1 * -nonDiag * invDet; - //imp1 = dv1 * jacB.getDiagonal() * invDet + dv0 * - nonDiag * invDet; - - imp0 = dv0 * jacA.getDiagonal() * invDet + dv1 * -nonDiag * invDet; - imp1 = dv1 * jacB.getDiagonal() * invDet + dv0 * - nonDiag * invDet; - - //[a b] [d -c] - //[c d] inverse = (1 / determinant) * [-b a] where determinant is (ad - bc) - - //[jA nD] * [imp0] = [dv0] - //[nD jB] [imp1] [dv1] - -} - - - -void btSolve2LinearConstraint::resolveBilateralPairConstraint( - btRigidBody* body1, - btRigidBody* body2, - const btMatrix3x3& world2A, - const btMatrix3x3& world2B, - - const btVector3& invInertiaADiag, - const btScalar invMassA, - const btVector3& linvelA,const btVector3& angvelA, - const btVector3& rel_posA1, - const btVector3& invInertiaBDiag, - const btScalar invMassB, - const btVector3& linvelB,const btVector3& angvelB, - const btVector3& rel_posA2, - - btScalar depthA, const btVector3& normalA, - const btVector3& rel_posB1,const btVector3& rel_posB2, - btScalar depthB, const btVector3& normalB, - btScalar& imp0,btScalar& imp1) -{ - - (void)linvelA; - (void)linvelB; - (void)angvelA; - (void)angvelB; - - - - imp0 = btScalar(0.); - imp1 = btScalar(0.); - - btScalar len = btFabs(normalA.length()) - btScalar(1.); - if (btFabs(len) >= SIMD_EPSILON) - return; - - btAssert(len < SIMD_EPSILON); - - - //this jacobian entry could be re-used for all iterations - btJacobianEntry jacA(world2A,world2B,rel_posA1,rel_posA2,normalA,invInertiaADiag,invMassA, - invInertiaBDiag,invMassB); - btJacobianEntry jacB(world2A,world2B,rel_posB1,rel_posB2,normalB,invInertiaADiag,invMassA, - invInertiaBDiag,invMassB); - - //const btScalar vel0 = jacA.getRelativeVelocity(linvelA,angvelA,linvelB,angvelB); - //const btScalar vel1 = jacB.getRelativeVelocity(linvelA,angvelA,linvelB,angvelB); - - const btScalar vel0 = normalA.dot(body1->getVelocityInLocalPoint(rel_posA1)-body2->getVelocityInLocalPoint(rel_posA1)); - const btScalar vel1 = normalB.dot(body1->getVelocityInLocalPoint(rel_posB1)-body2->getVelocityInLocalPoint(rel_posB1)); - - // calculate rhs (or error) terms - const btScalar dv0 = depthA * m_tau - vel0 * m_damping; - const btScalar dv1 = depthB * m_tau - vel1 * m_damping; - - // dC/dv * dv = -C - - // jacobian * impulse = -error - // - - //impulse = jacobianInverse * -error - - // inverting 2x2 symmetric system (offdiagonal are equal!) - // - - - btScalar nonDiag = jacA.getNonDiagonal(jacB,invMassA,invMassB); - btScalar invDet = btScalar(1.0) / (jacA.getDiagonal() * jacB.getDiagonal() - nonDiag * nonDiag ); - - //imp0 = dv0 * jacA.getDiagonal() * invDet + dv1 * -nonDiag * invDet; - //imp1 = dv1 * jacB.getDiagonal() * invDet + dv0 * - nonDiag * invDet; - - imp0 = dv0 * jacA.getDiagonal() * invDet + dv1 * -nonDiag * invDet; - imp1 = dv1 * jacB.getDiagonal() * invDet + dv0 * - nonDiag * invDet; - - //[a b] [d -c] - //[c d] inverse = (1 / determinant) * [-b a] where determinant is (ad - bc) - - //[jA nD] * [imp0] = [dv0] - //[nD jB] [imp1] [dv1] - - if ( imp0 > btScalar(0.0)) - { - if ( imp1 > btScalar(0.0) ) - { - //both positive - } - else - { - imp1 = btScalar(0.); - - // now imp0>0 imp1<0 - imp0 = dv0 / jacA.getDiagonal(); - if ( imp0 > btScalar(0.0) ) - { - } else - { - imp0 = btScalar(0.); - } - } - } - else - { - imp0 = btScalar(0.); - - imp1 = dv1 / jacB.getDiagonal(); - if ( imp1 <= btScalar(0.0) ) - { - imp1 = btScalar(0.); - // now imp0>0 imp1<0 - imp0 = dv0 / jacA.getDiagonal(); - if ( imp0 > btScalar(0.0) ) - { - } else - { - imp0 = btScalar(0.); - } - } else - { - } - } -} - - -/* -void btSolve2LinearConstraint::resolveAngularConstraint( const btMatrix3x3& invInertiaAWS, - const btScalar invMassA, - const btVector3& linvelA,const btVector3& angvelA, - const btVector3& rel_posA1, - const btMatrix3x3& invInertiaBWS, - const btScalar invMassB, - const btVector3& linvelB,const btVector3& angvelB, - const btVector3& rel_posA2, - - btScalar depthA, const btVector3& normalA, - const btVector3& rel_posB1,const btVector3& rel_posB2, - btScalar depthB, const btVector3& normalB, - btScalar& imp0,btScalar& imp1) -{ - -} -*/ - diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSolve2LinearConstraint.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSolve2LinearConstraint.h deleted file mode 100644 index e8bfabf864..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSolve2LinearConstraint.h +++ /dev/null @@ -1,107 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_SOLVE_2LINEAR_CONSTRAINT_H -#define BT_SOLVE_2LINEAR_CONSTRAINT_H - -#include "LinearMath/btMatrix3x3.h" -#include "LinearMath/btVector3.h" - - -class btRigidBody; - - - -/// constraint class used for lateral tyre friction. -class btSolve2LinearConstraint -{ - btScalar m_tau; - btScalar m_damping; - -public: - - btSolve2LinearConstraint(btScalar tau,btScalar damping) - { - m_tau = tau; - m_damping = damping; - } - // - // solve unilateral constraint (equality, direct method) - // - void resolveUnilateralPairConstraint( - btRigidBody* body0, - btRigidBody* body1, - - const btMatrix3x3& world2A, - const btMatrix3x3& world2B, - - const btVector3& invInertiaADiag, - const btScalar invMassA, - const btVector3& linvelA,const btVector3& angvelA, - const btVector3& rel_posA1, - const btVector3& invInertiaBDiag, - const btScalar invMassB, - const btVector3& linvelB,const btVector3& angvelB, - const btVector3& rel_posA2, - - btScalar depthA, const btVector3& normalA, - const btVector3& rel_posB1,const btVector3& rel_posB2, - btScalar depthB, const btVector3& normalB, - btScalar& imp0,btScalar& imp1); - - - // - // solving 2x2 lcp problem (inequality, direct solution ) - // - void resolveBilateralPairConstraint( - btRigidBody* body0, - btRigidBody* body1, - const btMatrix3x3& world2A, - const btMatrix3x3& world2B, - - const btVector3& invInertiaADiag, - const btScalar invMassA, - const btVector3& linvelA,const btVector3& angvelA, - const btVector3& rel_posA1, - const btVector3& invInertiaBDiag, - const btScalar invMassB, - const btVector3& linvelB,const btVector3& angvelB, - const btVector3& rel_posA2, - - btScalar depthA, const btVector3& normalA, - const btVector3& rel_posB1,const btVector3& rel_posB2, - btScalar depthB, const btVector3& normalB, - btScalar& imp0,btScalar& imp1); - -/* - void resolveAngularConstraint( const btMatrix3x3& invInertiaAWS, - const btScalar invMassA, - const btVector3& linvelA,const btVector3& angvelA, - const btVector3& rel_posA1, - const btMatrix3x3& invInertiaBWS, - const btScalar invMassB, - const btVector3& linvelB,const btVector3& angvelB, - const btVector3& rel_posA2, - - btScalar depthA, const btVector3& normalA, - const btVector3& rel_posB1,const btVector3& rel_posB2, - btScalar depthB, const btVector3& normalB, - btScalar& imp0,btScalar& imp1); - -*/ - -}; - -#endif //BT_SOLVE_2LINEAR_CONSTRAINT_H diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSolverBody.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSolverBody.h deleted file mode 100644 index 27ccefe416..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSolverBody.h +++ /dev/null @@ -1,306 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_SOLVER_BODY_H -#define BT_SOLVER_BODY_H - -class btRigidBody; -#include "LinearMath/btVector3.h" -#include "LinearMath/btMatrix3x3.h" - -#include "LinearMath/btAlignedAllocator.h" -#include "LinearMath/btTransformUtil.h" - -///Until we get other contributions, only use SIMD on Windows, when using Visual Studio 2008 or later, and not double precision -#ifdef BT_USE_SSE -#define USE_SIMD 1 -#endif // - - -#ifdef USE_SIMD - -struct btSimdScalar -{ - SIMD_FORCE_INLINE btSimdScalar() - { - - } - - SIMD_FORCE_INLINE btSimdScalar(float fl) - :m_vec128 (_mm_set1_ps(fl)) - { - } - - SIMD_FORCE_INLINE btSimdScalar(__m128 v128) - :m_vec128(v128) - { - } - union - { - __m128 m_vec128; - float m_floats[4]; - int m_ints[4]; - btScalar m_unusedPadding; - }; - SIMD_FORCE_INLINE __m128 get128() - { - return m_vec128; - } - - SIMD_FORCE_INLINE const __m128 get128() const - { - return m_vec128; - } - - SIMD_FORCE_INLINE void set128(__m128 v128) - { - m_vec128 = v128; - } - - SIMD_FORCE_INLINE operator __m128() - { - return m_vec128; - } - SIMD_FORCE_INLINE operator const __m128() const - { - return m_vec128; - } - - SIMD_FORCE_INLINE operator float() const - { - return m_floats[0]; - } - -}; - -///@brief Return the elementwise product of two btSimdScalar -SIMD_FORCE_INLINE btSimdScalar -operator*(const btSimdScalar& v1, const btSimdScalar& v2) -{ - return btSimdScalar(_mm_mul_ps(v1.get128(),v2.get128())); -} - -///@brief Return the elementwise product of two btSimdScalar -SIMD_FORCE_INLINE btSimdScalar -operator+(const btSimdScalar& v1, const btSimdScalar& v2) -{ - return btSimdScalar(_mm_add_ps(v1.get128(),v2.get128())); -} - - -#else -#define btSimdScalar btScalar -#endif - -///The btSolverBody is an internal datastructure for the constraint solver. Only necessary data is packed to increase cache coherence/performance. -ATTRIBUTE_ALIGNED16 (struct) btSolverBody -{ - BT_DECLARE_ALIGNED_ALLOCATOR(); - btTransform m_worldTransform; - btVector3 m_deltaLinearVelocity; - btVector3 m_deltaAngularVelocity; - btVector3 m_angularFactor; - btVector3 m_linearFactor; - btVector3 m_invMass; - btVector3 m_pushVelocity; - btVector3 m_turnVelocity; - btVector3 m_linearVelocity; - btVector3 m_angularVelocity; - btVector3 m_externalForceImpulse; - btVector3 m_externalTorqueImpulse; - - btRigidBody* m_originalBody; - void setWorldTransform(const btTransform& worldTransform) - { - m_worldTransform = worldTransform; - } - - const btTransform& getWorldTransform() const - { - return m_worldTransform; - } - - - - SIMD_FORCE_INLINE void getVelocityInLocalPointNoDelta(const btVector3& rel_pos, btVector3& velocity ) const - { - if (m_originalBody) - velocity = m_linearVelocity + m_externalForceImpulse + (m_angularVelocity+m_externalTorqueImpulse).cross(rel_pos); - else - velocity.setValue(0,0,0); - } - - - SIMD_FORCE_INLINE void getVelocityInLocalPointObsolete(const btVector3& rel_pos, btVector3& velocity ) const - { - if (m_originalBody) - velocity = m_linearVelocity+m_deltaLinearVelocity + (m_angularVelocity+m_deltaAngularVelocity).cross(rel_pos); - else - velocity.setValue(0,0,0); - } - - SIMD_FORCE_INLINE void getAngularVelocity(btVector3& angVel) const - { - if (m_originalBody) - angVel =m_angularVelocity+m_deltaAngularVelocity; - else - angVel.setValue(0,0,0); - } - - - //Optimization for the iterative solver: avoid calculating constant terms involving inertia, normal, relative position - SIMD_FORCE_INLINE void applyImpulse(const btVector3& linearComponent, const btVector3& angularComponent,const btScalar impulseMagnitude) - { - if (m_originalBody) - { - m_deltaLinearVelocity += linearComponent*impulseMagnitude*m_linearFactor; - m_deltaAngularVelocity += angularComponent*(impulseMagnitude*m_angularFactor); - } - } - - SIMD_FORCE_INLINE void internalApplyPushImpulse(const btVector3& linearComponent, const btVector3& angularComponent,btScalar impulseMagnitude) - { - if (m_originalBody) - { - m_pushVelocity += linearComponent*impulseMagnitude*m_linearFactor; - m_turnVelocity += angularComponent*(impulseMagnitude*m_angularFactor); - } - } - - - - const btVector3& getDeltaLinearVelocity() const - { - return m_deltaLinearVelocity; - } - - const btVector3& getDeltaAngularVelocity() const - { - return m_deltaAngularVelocity; - } - - const btVector3& getPushVelocity() const - { - return m_pushVelocity; - } - - const btVector3& getTurnVelocity() const - { - return m_turnVelocity; - } - - - //////////////////////////////////////////////// - ///some internal methods, don't use them - - btVector3& internalGetDeltaLinearVelocity() - { - return m_deltaLinearVelocity; - } - - btVector3& internalGetDeltaAngularVelocity() - { - return m_deltaAngularVelocity; - } - - const btVector3& internalGetAngularFactor() const - { - return m_angularFactor; - } - - const btVector3& internalGetInvMass() const - { - return m_invMass; - } - - void internalSetInvMass(const btVector3& invMass) - { - m_invMass = invMass; - } - - btVector3& internalGetPushVelocity() - { - return m_pushVelocity; - } - - btVector3& internalGetTurnVelocity() - { - return m_turnVelocity; - } - - SIMD_FORCE_INLINE void internalGetVelocityInLocalPointObsolete(const btVector3& rel_pos, btVector3& velocity ) const - { - velocity = m_linearVelocity+m_deltaLinearVelocity + (m_angularVelocity+m_deltaAngularVelocity).cross(rel_pos); - } - - SIMD_FORCE_INLINE void internalGetAngularVelocity(btVector3& angVel) const - { - angVel = m_angularVelocity+m_deltaAngularVelocity; - } - - - //Optimization for the iterative solver: avoid calculating constant terms involving inertia, normal, relative position - SIMD_FORCE_INLINE void internalApplyImpulse(const btVector3& linearComponent, const btVector3& angularComponent,const btScalar impulseMagnitude) - { - if (m_originalBody) - { - m_deltaLinearVelocity += linearComponent*impulseMagnitude*m_linearFactor; - m_deltaAngularVelocity += angularComponent*(impulseMagnitude*m_angularFactor); - } - } - - - - - void writebackVelocity() - { - if (m_originalBody) - { - m_linearVelocity +=m_deltaLinearVelocity; - m_angularVelocity += m_deltaAngularVelocity; - - //m_originalBody->setCompanionId(-1); - } - } - - - void writebackVelocityAndTransform(btScalar timeStep, btScalar splitImpulseTurnErp) - { - (void) timeStep; - if (m_originalBody) - { - m_linearVelocity += m_deltaLinearVelocity; - m_angularVelocity += m_deltaAngularVelocity; - - //correct the position/orientation based on push/turn recovery - btTransform newTransform; - if (m_pushVelocity[0]!=0.f || m_pushVelocity[1]!=0 || m_pushVelocity[2]!=0 || m_turnVelocity[0]!=0.f || m_turnVelocity[1]!=0 || m_turnVelocity[2]!=0) - { - // btQuaternion orn = m_worldTransform.getRotation(); - btTransformUtil::integrateTransform(m_worldTransform,m_pushVelocity,m_turnVelocity*splitImpulseTurnErp,timeStep,newTransform); - m_worldTransform = newTransform; - } - //m_worldTransform.setRotation(orn); - //m_originalBody->setCompanionId(-1); - } - } - - - -}; - -#endif //BT_SOLVER_BODY_H - - diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSolverConstraint.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSolverConstraint.h deleted file mode 100644 index 5515e6b311..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btSolverConstraint.h +++ /dev/null @@ -1,80 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_SOLVER_CONSTRAINT_H -#define BT_SOLVER_CONSTRAINT_H - -class btRigidBody; -#include "LinearMath/btVector3.h" -#include "LinearMath/btMatrix3x3.h" -#include "btJacobianEntry.h" -#include "LinearMath/btAlignedObjectArray.h" - -//#define NO_FRICTION_TANGENTIALS 1 -#include "btSolverBody.h" - - -///1D constraint along a normal axis between bodyA and bodyB. It can be combined to solve contact and friction constraints. -ATTRIBUTE_ALIGNED16 (struct) btSolverConstraint -{ - BT_DECLARE_ALIGNED_ALLOCATOR(); - - btVector3 m_relpos1CrossNormal; - btVector3 m_contactNormal1; - - btVector3 m_relpos2CrossNormal; - btVector3 m_contactNormal2; //usually m_contactNormal2 == -m_contactNormal1, but not always - - btVector3 m_angularComponentA; - btVector3 m_angularComponentB; - - mutable btSimdScalar m_appliedPushImpulse; - mutable btSimdScalar m_appliedImpulse; - - btScalar m_friction; - btScalar m_jacDiagABInv; - btScalar m_rhs; - btScalar m_cfm; - - btScalar m_lowerLimit; - btScalar m_upperLimit; - btScalar m_rhsPenetration; - union - { - void* m_originalContactPoint; - btScalar m_unusedPadding4; - int m_numRowsForNonContactConstraint; - }; - - int m_overrideNumSolverIterations; - int m_frictionIndex; - int m_solverBodyIdA; - int m_solverBodyIdB; - - - enum btSolverConstraintType - { - BT_SOLVER_CONTACT_1D = 0, - BT_SOLVER_FRICTION_1D - }; -}; - -typedef btAlignedObjectArray<btSolverConstraint> btConstraintArray; - - -#endif //BT_SOLVER_CONSTRAINT_H - - - diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btTypedConstraint.cpp b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btTypedConstraint.cpp deleted file mode 100644 index 9f04f28053..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btTypedConstraint.cpp +++ /dev/null @@ -1,222 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - - -#include "btTypedConstraint.h" -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include "LinearMath/btSerializer.h" - - -#define DEFAULT_DEBUGDRAW_SIZE btScalar(0.05f) - -btTypedConstraint::btTypedConstraint(btTypedConstraintType type, btRigidBody& rbA) -:btTypedObject(type), -m_userConstraintType(-1), -m_userConstraintPtr((void*)-1), -m_breakingImpulseThreshold(SIMD_INFINITY), -m_isEnabled(true), -m_needsFeedback(false), -m_overrideNumSolverIterations(-1), -m_rbA(rbA), -m_rbB(getFixedBody()), -m_appliedImpulse(btScalar(0.)), -m_dbgDrawSize(DEFAULT_DEBUGDRAW_SIZE), -m_jointFeedback(0) -{ -} - - -btTypedConstraint::btTypedConstraint(btTypedConstraintType type, btRigidBody& rbA,btRigidBody& rbB) -:btTypedObject(type), -m_userConstraintType(-1), -m_userConstraintPtr((void*)-1), -m_breakingImpulseThreshold(SIMD_INFINITY), -m_isEnabled(true), -m_needsFeedback(false), -m_overrideNumSolverIterations(-1), -m_rbA(rbA), -m_rbB(rbB), -m_appliedImpulse(btScalar(0.)), -m_dbgDrawSize(DEFAULT_DEBUGDRAW_SIZE), -m_jointFeedback(0) -{ -} - - - - -btScalar btTypedConstraint::getMotorFactor(btScalar pos, btScalar lowLim, btScalar uppLim, btScalar vel, btScalar timeFact) -{ - if(lowLim > uppLim) - { - return btScalar(1.0f); - } - else if(lowLim == uppLim) - { - return btScalar(0.0f); - } - btScalar lim_fact = btScalar(1.0f); - btScalar delta_max = vel / timeFact; - if(delta_max < btScalar(0.0f)) - { - if((pos >= lowLim) && (pos < (lowLim - delta_max))) - { - lim_fact = (lowLim - pos) / delta_max; - } - else if(pos < lowLim) - { - lim_fact = btScalar(0.0f); - } - else - { - lim_fact = btScalar(1.0f); - } - } - else if(delta_max > btScalar(0.0f)) - { - if((pos <= uppLim) && (pos > (uppLim - delta_max))) - { - lim_fact = (uppLim - pos) / delta_max; - } - else if(pos > uppLim) - { - lim_fact = btScalar(0.0f); - } - else - { - lim_fact = btScalar(1.0f); - } - } - else - { - lim_fact = btScalar(0.0f); - } - return lim_fact; -} - -///fills the dataBuffer and returns the struct name (and 0 on failure) -const char* btTypedConstraint::serialize(void* dataBuffer, btSerializer* serializer) const -{ - btTypedConstraintData2* tcd = (btTypedConstraintData2*) dataBuffer; - - tcd->m_rbA = (btRigidBodyData*)serializer->getUniquePointer(&m_rbA); - tcd->m_rbB = (btRigidBodyData*)serializer->getUniquePointer(&m_rbB); - char* name = (char*) serializer->findNameForPointer(this); - tcd->m_name = (char*)serializer->getUniquePointer(name); - if (tcd->m_name) - { - serializer->serializeName(name); - } - - tcd->m_objectType = m_objectType; - tcd->m_needsFeedback = m_needsFeedback; - tcd->m_overrideNumSolverIterations = m_overrideNumSolverIterations; - tcd->m_breakingImpulseThreshold = m_breakingImpulseThreshold; - tcd->m_isEnabled = m_isEnabled? 1: 0; - - tcd->m_userConstraintId =m_userConstraintId; - tcd->m_userConstraintType =m_userConstraintType; - - tcd->m_appliedImpulse = m_appliedImpulse; - tcd->m_dbgDrawSize = m_dbgDrawSize; - - tcd->m_disableCollisionsBetweenLinkedBodies = false; - - int i; - for (i=0;i<m_rbA.getNumConstraintRefs();i++) - if (m_rbA.getConstraintRef(i) == this) - tcd->m_disableCollisionsBetweenLinkedBodies = true; - for (i=0;i<m_rbB.getNumConstraintRefs();i++) - if (m_rbB.getConstraintRef(i) == this) - tcd->m_disableCollisionsBetweenLinkedBodies = true; - - return btTypedConstraintDataName; -} - -btRigidBody& btTypedConstraint::getFixedBody() -{ - static btRigidBody s_fixed(0, 0,0); - s_fixed.setMassProps(btScalar(0.),btVector3(btScalar(0.),btScalar(0.),btScalar(0.))); - return s_fixed; -} - - -void btAngularLimit::set(btScalar low, btScalar high, btScalar _softness, btScalar _biasFactor, btScalar _relaxationFactor) -{ - m_halfRange = (high - low) / 2.0f; - m_center = btNormalizeAngle(low + m_halfRange); - m_softness = _softness; - m_biasFactor = _biasFactor; - m_relaxationFactor = _relaxationFactor; -} - -void btAngularLimit::test(const btScalar angle) -{ - m_correction = 0.0f; - m_sign = 0.0f; - m_solveLimit = false; - - if (m_halfRange >= 0.0f) - { - btScalar deviation = btNormalizeAngle(angle - m_center); - if (deviation < -m_halfRange) - { - m_solveLimit = true; - m_correction = - (deviation + m_halfRange); - m_sign = +1.0f; - } - else if (deviation > m_halfRange) - { - m_solveLimit = true; - m_correction = m_halfRange - deviation; - m_sign = -1.0f; - } - } -} - - -btScalar btAngularLimit::getError() const -{ - return m_correction * m_sign; -} - -void btAngularLimit::fit(btScalar& angle) const -{ - if (m_halfRange > 0.0f) - { - btScalar relativeAngle = btNormalizeAngle(angle - m_center); - if (!btEqual(relativeAngle, m_halfRange)) - { - if (relativeAngle > 0.0f) - { - angle = getHigh(); - } - else - { - angle = getLow(); - } - } - } -} - -btScalar btAngularLimit::getLow() const -{ - return btNormalizeAngle(m_center - m_halfRange); -} - -btScalar btAngularLimit::getHigh() const -{ - return btNormalizeAngle(m_center + m_halfRange); -} diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btTypedConstraint.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btTypedConstraint.h deleted file mode 100644 index 8a2a2d1ae7..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btTypedConstraint.h +++ /dev/null @@ -1,541 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2010 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_TYPED_CONSTRAINT_H -#define BT_TYPED_CONSTRAINT_H - - -#include "LinearMath/btScalar.h" -#include "btSolverConstraint.h" -#include "BulletDynamics/Dynamics/btRigidBody.h" - -#ifdef BT_USE_DOUBLE_PRECISION -#define btTypedConstraintData2 btTypedConstraintDoubleData -#define btTypedConstraintDataName "btTypedConstraintDoubleData" -#else -#define btTypedConstraintData2 btTypedConstraintFloatData -#define btTypedConstraintDataName "btTypedConstraintFloatData" -#endif //BT_USE_DOUBLE_PRECISION - - -class btSerializer; - -//Don't change any of the existing enum values, so add enum types at the end for serialization compatibility -enum btTypedConstraintType -{ - POINT2POINT_CONSTRAINT_TYPE=3, - HINGE_CONSTRAINT_TYPE, - CONETWIST_CONSTRAINT_TYPE, - D6_CONSTRAINT_TYPE, - SLIDER_CONSTRAINT_TYPE, - CONTACT_CONSTRAINT_TYPE, - D6_SPRING_CONSTRAINT_TYPE, - GEAR_CONSTRAINT_TYPE, - FIXED_CONSTRAINT_TYPE, - D6_SPRING_2_CONSTRAINT_TYPE, - MAX_CONSTRAINT_TYPE -}; - - -enum btConstraintParams -{ - BT_CONSTRAINT_ERP=1, - BT_CONSTRAINT_STOP_ERP, - BT_CONSTRAINT_CFM, - BT_CONSTRAINT_STOP_CFM -}; - -#if 1 - #define btAssertConstrParams(_par) btAssert(_par) -#else - #define btAssertConstrParams(_par) -#endif - - -ATTRIBUTE_ALIGNED16(struct) btJointFeedback -{ - BT_DECLARE_ALIGNED_ALLOCATOR(); - btVector3 m_appliedForceBodyA; - btVector3 m_appliedTorqueBodyA; - btVector3 m_appliedForceBodyB; - btVector3 m_appliedTorqueBodyB; -}; - - -///TypedConstraint is the baseclass for Bullet constraints and vehicles -ATTRIBUTE_ALIGNED16(class) btTypedConstraint : public btTypedObject -{ - int m_userConstraintType; - - union - { - int m_userConstraintId; - void* m_userConstraintPtr; - }; - - btScalar m_breakingImpulseThreshold; - bool m_isEnabled; - bool m_needsFeedback; - int m_overrideNumSolverIterations; - - - btTypedConstraint& operator=(btTypedConstraint& other) - { - btAssert(0); - (void) other; - return *this; - } - -protected: - btRigidBody& m_rbA; - btRigidBody& m_rbB; - btScalar m_appliedImpulse; - btScalar m_dbgDrawSize; - btJointFeedback* m_jointFeedback; - - ///internal method used by the constraint solver, don't use them directly - btScalar getMotorFactor(btScalar pos, btScalar lowLim, btScalar uppLim, btScalar vel, btScalar timeFact); - - -public: - - BT_DECLARE_ALIGNED_ALLOCATOR(); - - virtual ~btTypedConstraint() {}; - btTypedConstraint(btTypedConstraintType type, btRigidBody& rbA); - btTypedConstraint(btTypedConstraintType type, btRigidBody& rbA,btRigidBody& rbB); - - struct btConstraintInfo1 { - int m_numConstraintRows,nub; - }; - - static btRigidBody& getFixedBody(); - - struct btConstraintInfo2 { - // integrator parameters: frames per second (1/stepsize), default error - // reduction parameter (0..1). - btScalar fps,erp; - - // for the first and second body, pointers to two (linear and angular) - // n*3 jacobian sub matrices, stored by rows. these matrices will have - // been initialized to 0 on entry. if the second body is zero then the - // J2xx pointers may be 0. - btScalar *m_J1linearAxis,*m_J1angularAxis,*m_J2linearAxis,*m_J2angularAxis; - - // elements to jump from one row to the next in J's - int rowskip; - - // right hand sides of the equation J*v = c + cfm * lambda. cfm is the - // "constraint force mixing" vector. c is set to zero on entry, cfm is - // set to a constant value (typically very small or zero) value on entry. - btScalar *m_constraintError,*cfm; - - // lo and hi limits for variables (set to -/+ infinity on entry). - btScalar *m_lowerLimit,*m_upperLimit; - - // number of solver iterations - int m_numIterations; - - //damping of the velocity - btScalar m_damping; - }; - - int getOverrideNumSolverIterations() const - { - return m_overrideNumSolverIterations; - } - - ///override the number of constraint solver iterations used to solve this constraint - ///-1 will use the default number of iterations, as specified in SolverInfo.m_numIterations - void setOverrideNumSolverIterations(int overideNumIterations) - { - m_overrideNumSolverIterations = overideNumIterations; - } - - ///internal method used by the constraint solver, don't use them directly - virtual void buildJacobian() {}; - - ///internal method used by the constraint solver, don't use them directly - virtual void setupSolverConstraint(btConstraintArray& ca, int solverBodyA,int solverBodyB, btScalar timeStep) - { - (void)ca; - (void)solverBodyA; - (void)solverBodyB; - (void)timeStep; - } - - ///internal method used by the constraint solver, don't use them directly - virtual void getInfo1 (btConstraintInfo1* info)=0; - - ///internal method used by the constraint solver, don't use them directly - virtual void getInfo2 (btConstraintInfo2* info)=0; - - ///internal method used by the constraint solver, don't use them directly - void internalSetAppliedImpulse(btScalar appliedImpulse) - { - m_appliedImpulse = appliedImpulse; - } - ///internal method used by the constraint solver, don't use them directly - btScalar internalGetAppliedImpulse() - { - return m_appliedImpulse; - } - - - btScalar getBreakingImpulseThreshold() const - { - return m_breakingImpulseThreshold; - } - - void setBreakingImpulseThreshold(btScalar threshold) - { - m_breakingImpulseThreshold = threshold; - } - - bool isEnabled() const - { - return m_isEnabled; - } - - void setEnabled(bool enabled) - { - m_isEnabled=enabled; - } - - - ///internal method used by the constraint solver, don't use them directly - virtual void solveConstraintObsolete(btSolverBody& /*bodyA*/,btSolverBody& /*bodyB*/,btScalar /*timeStep*/) {}; - - - const btRigidBody& getRigidBodyA() const - { - return m_rbA; - } - const btRigidBody& getRigidBodyB() const - { - return m_rbB; - } - - btRigidBody& getRigidBodyA() - { - return m_rbA; - } - btRigidBody& getRigidBodyB() - { - return m_rbB; - } - - int getUserConstraintType() const - { - return m_userConstraintType ; - } - - void setUserConstraintType(int userConstraintType) - { - m_userConstraintType = userConstraintType; - }; - - void setUserConstraintId(int uid) - { - m_userConstraintId = uid; - } - - int getUserConstraintId() const - { - return m_userConstraintId; - } - - void setUserConstraintPtr(void* ptr) - { - m_userConstraintPtr = ptr; - } - - void* getUserConstraintPtr() - { - return m_userConstraintPtr; - } - - void setJointFeedback(btJointFeedback* jointFeedback) - { - m_jointFeedback = jointFeedback; - } - - const btJointFeedback* getJointFeedback() const - { - return m_jointFeedback; - } - - btJointFeedback* getJointFeedback() - { - return m_jointFeedback; - } - - - int getUid() const - { - return m_userConstraintId; - } - - bool needsFeedback() const - { - return m_needsFeedback; - } - - ///enableFeedback will allow to read the applied linear and angular impulse - ///use getAppliedImpulse, getAppliedLinearImpulse and getAppliedAngularImpulse to read feedback information - void enableFeedback(bool needsFeedback) - { - m_needsFeedback = needsFeedback; - } - - ///getAppliedImpulse is an estimated total applied impulse. - ///This feedback could be used to determine breaking constraints or playing sounds. - btScalar getAppliedImpulse() const - { - btAssert(m_needsFeedback); - return m_appliedImpulse; - } - - btTypedConstraintType getConstraintType () const - { - return btTypedConstraintType(m_objectType); - } - - void setDbgDrawSize(btScalar dbgDrawSize) - { - m_dbgDrawSize = dbgDrawSize; - } - btScalar getDbgDrawSize() - { - return m_dbgDrawSize; - } - - ///override the default global value of a parameter (such as ERP or CFM), optionally provide the axis (0..5). - ///If no axis is provided, it uses the default axis for this constraint. - virtual void setParam(int num, btScalar value, int axis = -1) = 0; - - ///return the local value of parameter - virtual btScalar getParam(int num, int axis = -1) const = 0; - - virtual int calculateSerializeBufferSize() const; - - ///fills the dataBuffer and returns the struct name (and 0 on failure) - virtual const char* serialize(void* dataBuffer, btSerializer* serializer) const; - -}; - -// returns angle in range [-SIMD_2_PI, SIMD_2_PI], closest to one of the limits -// all arguments should be normalized angles (i.e. in range [-SIMD_PI, SIMD_PI]) -SIMD_FORCE_INLINE btScalar btAdjustAngleToLimits(btScalar angleInRadians, btScalar angleLowerLimitInRadians, btScalar angleUpperLimitInRadians) -{ - if(angleLowerLimitInRadians >= angleUpperLimitInRadians) - { - return angleInRadians; - } - else if(angleInRadians < angleLowerLimitInRadians) - { - btScalar diffLo = btFabs(btNormalizeAngle(angleLowerLimitInRadians - angleInRadians)); - btScalar diffHi = btFabs(btNormalizeAngle(angleUpperLimitInRadians - angleInRadians)); - return (diffLo < diffHi) ? angleInRadians : (angleInRadians + SIMD_2_PI); - } - else if(angleInRadians > angleUpperLimitInRadians) - { - btScalar diffHi = btFabs(btNormalizeAngle(angleInRadians - angleUpperLimitInRadians)); - btScalar diffLo = btFabs(btNormalizeAngle(angleInRadians - angleLowerLimitInRadians)); - return (diffLo < diffHi) ? (angleInRadians - SIMD_2_PI) : angleInRadians; - } - else - { - return angleInRadians; - } -} - -///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64 -struct btTypedConstraintFloatData -{ - btRigidBodyFloatData *m_rbA; - btRigidBodyFloatData *m_rbB; - char *m_name; - - int m_objectType; - int m_userConstraintType; - int m_userConstraintId; - int m_needsFeedback; - - float m_appliedImpulse; - float m_dbgDrawSize; - - int m_disableCollisionsBetweenLinkedBodies; - int m_overrideNumSolverIterations; - - float m_breakingImpulseThreshold; - int m_isEnabled; - -}; - -///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64 - -#define BT_BACKWARDS_COMPATIBLE_SERIALIZATION -#ifdef BT_BACKWARDS_COMPATIBLE_SERIALIZATION -///this structure is not used, except for loading pre-2.82 .bullet files -struct btTypedConstraintData -{ - btRigidBodyData *m_rbA; - btRigidBodyData *m_rbB; - char *m_name; - - int m_objectType; - int m_userConstraintType; - int m_userConstraintId; - int m_needsFeedback; - - float m_appliedImpulse; - float m_dbgDrawSize; - - int m_disableCollisionsBetweenLinkedBodies; - int m_overrideNumSolverIterations; - - float m_breakingImpulseThreshold; - int m_isEnabled; - -}; -#endif //BACKWARDS_COMPATIBLE - -struct btTypedConstraintDoubleData -{ - btRigidBodyDoubleData *m_rbA; - btRigidBodyDoubleData *m_rbB; - char *m_name; - - int m_objectType; - int m_userConstraintType; - int m_userConstraintId; - int m_needsFeedback; - - double m_appliedImpulse; - double m_dbgDrawSize; - - int m_disableCollisionsBetweenLinkedBodies; - int m_overrideNumSolverIterations; - - double m_breakingImpulseThreshold; - int m_isEnabled; - char padding[4]; - -}; - - -SIMD_FORCE_INLINE int btTypedConstraint::calculateSerializeBufferSize() const -{ - return sizeof(btTypedConstraintData2); -} - - - -class btAngularLimit -{ -private: - btScalar - m_center, - m_halfRange, - m_softness, - m_biasFactor, - m_relaxationFactor, - m_correction, - m_sign; - - bool - m_solveLimit; - -public: - /// Default constructor initializes limit as inactive, allowing free constraint movement - btAngularLimit() - :m_center(0.0f), - m_halfRange(-1.0f), - m_softness(0.9f), - m_biasFactor(0.3f), - m_relaxationFactor(1.0f), - m_correction(0.0f), - m_sign(0.0f), - m_solveLimit(false) - {} - - /// Sets all limit's parameters. - /// When low > high limit becomes inactive. - /// When high - low > 2PI limit is ineffective too becouse no angle can exceed the limit - void set(btScalar low, btScalar high, btScalar _softness = 0.9f, btScalar _biasFactor = 0.3f, btScalar _relaxationFactor = 1.0f); - - /// Checks conastaint angle against limit. If limit is active and the angle violates the limit - /// correction is calculated. - void test(const btScalar angle); - - /// Returns limit's softness - inline btScalar getSoftness() const - { - return m_softness; - } - - /// Returns limit's bias factor - inline btScalar getBiasFactor() const - { - return m_biasFactor; - } - - /// Returns limit's relaxation factor - inline btScalar getRelaxationFactor() const - { - return m_relaxationFactor; - } - - /// Returns correction value evaluated when test() was invoked - inline btScalar getCorrection() const - { - return m_correction; - } - - /// Returns sign value evaluated when test() was invoked - inline btScalar getSign() const - { - return m_sign; - } - - /// Gives half of the distance between min and max limit angle - inline btScalar getHalfRange() const - { - return m_halfRange; - } - - /// Returns true when the last test() invocation recognized limit violation - inline bool isLimit() const - { - return m_solveLimit; - } - - /// Checks given angle against limit. If limit is active and angle doesn't fit it, the angle - /// returned is modified so it equals to the limit closest to given angle. - void fit(btScalar& angle) const; - - /// Returns correction value multiplied by sign value - btScalar getError() const; - - btScalar getLow() const; - - btScalar getHigh() const; - -}; - - - -#endif //BT_TYPED_CONSTRAINT_H diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btUniversalConstraint.cpp b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btUniversalConstraint.cpp deleted file mode 100644 index b009f41aec..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btUniversalConstraint.cpp +++ /dev/null @@ -1,87 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library, http://bulletphysics.org -Copyright (C) 2006, 2007 Sony Computer Entertainment Inc. - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - - - -#include "btUniversalConstraint.h" -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include "LinearMath/btTransformUtil.h" - - - -#define UNIV_EPS btScalar(0.01f) - - -// constructor -// anchor, axis1 and axis2 are in world coordinate system -// axis1 must be orthogonal to axis2 -btUniversalConstraint::btUniversalConstraint(btRigidBody& rbA, btRigidBody& rbB, const btVector3& anchor, const btVector3& axis1, const btVector3& axis2) -: btGeneric6DofConstraint(rbA, rbB, btTransform::getIdentity(), btTransform::getIdentity(), true), - m_anchor(anchor), - m_axis1(axis1), - m_axis2(axis2) -{ - // build frame basis - // 6DOF constraint uses Euler angles and to define limits - // it is assumed that rotational order is : - // Z - first, allowed limits are (-PI,PI); - // new position of Y - second (allowed limits are (-PI/2 + epsilon, PI/2 - epsilon), where epsilon is a small positive number - // used to prevent constraint from instability on poles; - // new position of X, allowed limits are (-PI,PI); - // So to simulate ODE Universal joint we should use parent axis as Z, child axis as Y and limit all other DOFs - // Build the frame in world coordinate system first - btVector3 zAxis = m_axis1.normalize(); - btVector3 yAxis = m_axis2.normalize(); - btVector3 xAxis = yAxis.cross(zAxis); // we want right coordinate system - btTransform frameInW; - frameInW.setIdentity(); - frameInW.getBasis().setValue( xAxis[0], yAxis[0], zAxis[0], - xAxis[1], yAxis[1], zAxis[1], - xAxis[2], yAxis[2], zAxis[2]); - frameInW.setOrigin(anchor); - // now get constraint frame in local coordinate systems - m_frameInA = rbA.getCenterOfMassTransform().inverse() * frameInW; - m_frameInB = rbB.getCenterOfMassTransform().inverse() * frameInW; - // sei limits - setLinearLowerLimit(btVector3(0., 0., 0.)); - setLinearUpperLimit(btVector3(0., 0., 0.)); - setAngularLowerLimit(btVector3(0.f, -SIMD_HALF_PI + UNIV_EPS, -SIMD_PI + UNIV_EPS)); - setAngularUpperLimit(btVector3(0.f, SIMD_HALF_PI - UNIV_EPS, SIMD_PI - UNIV_EPS)); -} - -void btUniversalConstraint::setAxis(const btVector3& axis1,const btVector3& axis2) -{ - m_axis1 = axis1; - m_axis2 = axis2; - - btVector3 zAxis = axis1.normalized(); - btVector3 yAxis = axis2.normalized(); - btVector3 xAxis = yAxis.cross(zAxis); // we want right coordinate system - - btTransform frameInW; - frameInW.setIdentity(); - frameInW.getBasis().setValue( xAxis[0], yAxis[0], zAxis[0], - xAxis[1], yAxis[1], zAxis[1], - xAxis[2], yAxis[2], zAxis[2]); - frameInW.setOrigin(m_anchor); - - // now get constraint frame in local coordinate systems - m_frameInA = m_rbA.getCenterOfMassTransform().inverse() * frameInW; - m_frameInB = m_rbB.getCenterOfMassTransform().inverse() * frameInW; - - calculateTransforms(); -} - - diff --git a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btUniversalConstraint.h b/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btUniversalConstraint.h deleted file mode 100644 index 9e70841043..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/ConstraintSolver/btUniversalConstraint.h +++ /dev/null @@ -1,65 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library, http://bulletphysics.org -Copyright (C) 2006, 2007 Sony Computer Entertainment Inc. - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_UNIVERSAL_CONSTRAINT_H -#define BT_UNIVERSAL_CONSTRAINT_H - - - -#include "LinearMath/btVector3.h" -#include "btTypedConstraint.h" -#include "btGeneric6DofConstraint.h" - - - -/// Constraint similar to ODE Universal Joint -/// has 2 rotatioonal degrees of freedom, similar to Euler rotations around Z (axis 1) -/// and Y (axis 2) -/// Description from ODE manual : -/// "Given axis 1 on body 1, and axis 2 on body 2 that is perpendicular to axis 1, it keeps them perpendicular. -/// In other words, rotation of the two bodies about the direction perpendicular to the two axes will be equal." - -ATTRIBUTE_ALIGNED16(class) btUniversalConstraint : public btGeneric6DofConstraint -{ -protected: - btVector3 m_anchor; - btVector3 m_axis1; - btVector3 m_axis2; -public: - - BT_DECLARE_ALIGNED_ALLOCATOR(); - - // constructor - // anchor, axis1 and axis2 are in world coordinate system - // axis1 must be orthogonal to axis2 - btUniversalConstraint(btRigidBody& rbA, btRigidBody& rbB, const btVector3& anchor, const btVector3& axis1, const btVector3& axis2); - // access - const btVector3& getAnchor() { return m_calculatedTransformA.getOrigin(); } - const btVector3& getAnchor2() { return m_calculatedTransformB.getOrigin(); } - const btVector3& getAxis1() { return m_axis1; } - const btVector3& getAxis2() { return m_axis2; } - btScalar getAngle1() { return getAngle(2); } - btScalar getAngle2() { return getAngle(1); } - // limits - void setUpperLimit(btScalar ang1max, btScalar ang2max) { setAngularUpperLimit(btVector3(0.f, ang1max, ang2max)); } - void setLowerLimit(btScalar ang1min, btScalar ang2min) { setAngularLowerLimit(btVector3(0.f, ang1min, ang2min)); } - - void setAxis( const btVector3& axis1, const btVector3& axis2); -}; - - - -#endif // BT_UNIVERSAL_CONSTRAINT_H - diff --git a/thirdparty/bullet/src/BulletDynamics/Dynamics/btActionInterface.h b/thirdparty/bullet/src/BulletDynamics/Dynamics/btActionInterface.h deleted file mode 100644 index e1fea3a49c..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Dynamics/btActionInterface.h +++ /dev/null @@ -1,46 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef _BT_ACTION_INTERFACE_H -#define _BT_ACTION_INTERFACE_H - -class btIDebugDraw; -class btCollisionWorld; - -#include "LinearMath/btScalar.h" -#include "btRigidBody.h" - -///Basic interface to allow actions such as vehicles and characters to be updated inside a btDynamicsWorld -class btActionInterface -{ -protected: - - static btRigidBody& getFixedBody(); - - -public: - - virtual ~btActionInterface() - { - } - - virtual void updateAction( btCollisionWorld* collisionWorld, btScalar deltaTimeStep)=0; - - virtual void debugDraw(btIDebugDraw* debugDrawer) = 0; - -}; - -#endif //_BT_ACTION_INTERFACE_H - diff --git a/thirdparty/bullet/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorld.cpp b/thirdparty/bullet/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorld.cpp deleted file mode 100644 index a196d4522e..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorld.cpp +++ /dev/null @@ -1,1538 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2009 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - - -#include "btDiscreteDynamicsWorld.h" - -//collision detection -#include "BulletCollision/CollisionDispatch/btCollisionDispatcher.h" -#include "BulletCollision/BroadphaseCollision/btSimpleBroadphase.h" -#include "BulletCollision/BroadphaseCollision/btCollisionAlgorithm.h" -#include "BulletCollision/CollisionShapes/btCollisionShape.h" -#include "BulletCollision/CollisionDispatch/btSimulationIslandManager.h" -#include "LinearMath/btTransformUtil.h" -#include "LinearMath/btQuickprof.h" - -//rigidbody & constraints -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include "BulletDynamics/ConstraintSolver/btSequentialImpulseConstraintSolver.h" -#include "BulletDynamics/ConstraintSolver/btContactSolverInfo.h" -#include "BulletDynamics/ConstraintSolver/btTypedConstraint.h" -#include "BulletDynamics/ConstraintSolver/btPoint2PointConstraint.h" -#include "BulletDynamics/ConstraintSolver/btHingeConstraint.h" -#include "BulletDynamics/ConstraintSolver/btConeTwistConstraint.h" -#include "BulletDynamics/ConstraintSolver/btGeneric6DofConstraint.h" -#include "BulletDynamics/ConstraintSolver/btGeneric6DofSpring2Constraint.h" -#include "BulletDynamics/ConstraintSolver/btSliderConstraint.h" -#include "BulletDynamics/ConstraintSolver/btContactConstraint.h" - - -#include "LinearMath/btIDebugDraw.h" -#include "BulletCollision/CollisionShapes/btSphereShape.h" - - -#include "BulletDynamics/Dynamics/btActionInterface.h" -#include "LinearMath/btQuickprof.h" -#include "LinearMath/btMotionState.h" - -#include "LinearMath/btSerializer.h" - -#if 0 -btAlignedObjectArray<btVector3> debugContacts; -btAlignedObjectArray<btVector3> debugNormals; -int startHit=2; -int firstHit=startHit; -#endif - -SIMD_FORCE_INLINE int btGetConstraintIslandId(const btTypedConstraint* lhs) -{ - int islandId; - - const btCollisionObject& rcolObj0 = lhs->getRigidBodyA(); - const btCollisionObject& rcolObj1 = lhs->getRigidBodyB(); - islandId= rcolObj0.getIslandTag()>=0?rcolObj0.getIslandTag():rcolObj1.getIslandTag(); - return islandId; - -} - - -class btSortConstraintOnIslandPredicate -{ - public: - - bool operator() ( const btTypedConstraint* lhs, const btTypedConstraint* rhs ) const - { - int rIslandId0,lIslandId0; - rIslandId0 = btGetConstraintIslandId(rhs); - lIslandId0 = btGetConstraintIslandId(lhs); - return lIslandId0 < rIslandId0; - } -}; - -struct InplaceSolverIslandCallback : public btSimulationIslandManager::IslandCallback -{ - btContactSolverInfo* m_solverInfo; - btConstraintSolver* m_solver; - btTypedConstraint** m_sortedConstraints; - int m_numConstraints; - btIDebugDraw* m_debugDrawer; - btDispatcher* m_dispatcher; - - btAlignedObjectArray<btCollisionObject*> m_bodies; - btAlignedObjectArray<btPersistentManifold*> m_manifolds; - btAlignedObjectArray<btTypedConstraint*> m_constraints; - - - InplaceSolverIslandCallback( - btConstraintSolver* solver, - btStackAlloc* stackAlloc, - btDispatcher* dispatcher) - :m_solverInfo(NULL), - m_solver(solver), - m_sortedConstraints(NULL), - m_numConstraints(0), - m_debugDrawer(NULL), - m_dispatcher(dispatcher) - { - - } - - InplaceSolverIslandCallback& operator=(InplaceSolverIslandCallback& other) - { - btAssert(0); - (void)other; - return *this; - } - - SIMD_FORCE_INLINE void setup ( btContactSolverInfo* solverInfo, btTypedConstraint** sortedConstraints, int numConstraints, btIDebugDraw* debugDrawer) - { - btAssert(solverInfo); - m_solverInfo = solverInfo; - m_sortedConstraints = sortedConstraints; - m_numConstraints = numConstraints; - m_debugDrawer = debugDrawer; - m_bodies.resize (0); - m_manifolds.resize (0); - m_constraints.resize (0); - } - - - virtual void processIsland(btCollisionObject** bodies,int numBodies,btPersistentManifold** manifolds,int numManifolds, int islandId) - { - if (islandId<0) - { - ///we don't split islands, so all constraints/contact manifolds/bodies are passed into the solver regardless the island id - m_solver->solveGroup( bodies,numBodies,manifolds, numManifolds,&m_sortedConstraints[0],m_numConstraints,*m_solverInfo,m_debugDrawer,m_dispatcher); - } else - { - //also add all non-contact constraints/joints for this island - btTypedConstraint** startConstraint = 0; - int numCurConstraints = 0; - int i; - - //find the first constraint for this island - for (i=0;i<m_numConstraints;i++) - { - if (btGetConstraintIslandId(m_sortedConstraints[i]) == islandId) - { - startConstraint = &m_sortedConstraints[i]; - break; - } - } - //count the number of constraints in this island - for (;i<m_numConstraints;i++) - { - if (btGetConstraintIslandId(m_sortedConstraints[i]) == islandId) - { - numCurConstraints++; - } - } - - if (m_solverInfo->m_minimumSolverBatchSize<=1) - { - m_solver->solveGroup( bodies,numBodies,manifolds, numManifolds,startConstraint,numCurConstraints,*m_solverInfo,m_debugDrawer,m_dispatcher); - } else - { - - for (i=0;i<numBodies;i++) - m_bodies.push_back(bodies[i]); - for (i=0;i<numManifolds;i++) - m_manifolds.push_back(manifolds[i]); - for (i=0;i<numCurConstraints;i++) - m_constraints.push_back(startConstraint[i]); - if ((m_constraints.size()+m_manifolds.size())>m_solverInfo->m_minimumSolverBatchSize) - { - processConstraints(); - } else - { - //printf("deferred\n"); - } - } - } - } - void processConstraints() - { - - btCollisionObject** bodies = m_bodies.size()? &m_bodies[0]:0; - btPersistentManifold** manifold = m_manifolds.size()?&m_manifolds[0]:0; - btTypedConstraint** constraints = m_constraints.size()?&m_constraints[0]:0; - - m_solver->solveGroup( bodies,m_bodies.size(),manifold, m_manifolds.size(),constraints, m_constraints.size() ,*m_solverInfo,m_debugDrawer,m_dispatcher); - m_bodies.resize(0); - m_manifolds.resize(0); - m_constraints.resize(0); - - } - -}; - - - -btDiscreteDynamicsWorld::btDiscreteDynamicsWorld(btDispatcher* dispatcher,btBroadphaseInterface* pairCache,btConstraintSolver* constraintSolver, btCollisionConfiguration* collisionConfiguration) -:btDynamicsWorld(dispatcher,pairCache,collisionConfiguration), -m_sortedConstraints (), -m_solverIslandCallback ( NULL ), -m_constraintSolver(constraintSolver), -m_gravity(0,-10,0), -m_localTime(0), -m_fixedTimeStep(0), -m_synchronizeAllMotionStates(false), -m_applySpeculativeContactRestitution(false), -m_profileTimings(0), -m_latencyMotionStateInterpolation(true) - -{ - if (!m_constraintSolver) - { - void* mem = btAlignedAlloc(sizeof(btSequentialImpulseConstraintSolver),16); - m_constraintSolver = new (mem) btSequentialImpulseConstraintSolver; - m_ownsConstraintSolver = true; - } else - { - m_ownsConstraintSolver = false; - } - - { - void* mem = btAlignedAlloc(sizeof(btSimulationIslandManager),16); - m_islandManager = new (mem) btSimulationIslandManager(); - } - - m_ownsIslandManager = true; - - { - void* mem = btAlignedAlloc(sizeof(InplaceSolverIslandCallback),16); - m_solverIslandCallback = new (mem) InplaceSolverIslandCallback (m_constraintSolver, 0, dispatcher); - } -} - - -btDiscreteDynamicsWorld::~btDiscreteDynamicsWorld() -{ - //only delete it when we created it - if (m_ownsIslandManager) - { - m_islandManager->~btSimulationIslandManager(); - btAlignedFree( m_islandManager); - } - if (m_solverIslandCallback) - { - m_solverIslandCallback->~InplaceSolverIslandCallback(); - btAlignedFree(m_solverIslandCallback); - } - if (m_ownsConstraintSolver) - { - - m_constraintSolver->~btConstraintSolver(); - btAlignedFree(m_constraintSolver); - } -} - -void btDiscreteDynamicsWorld::saveKinematicState(btScalar timeStep) -{ -///would like to iterate over m_nonStaticRigidBodies, but unfortunately old API allows -///to switch status _after_ adding kinematic objects to the world -///fix it for Bullet 3.x release - for (int i=0;i<m_collisionObjects.size();i++) - { - btCollisionObject* colObj = m_collisionObjects[i]; - btRigidBody* body = btRigidBody::upcast(colObj); - if (body && body->getActivationState() != ISLAND_SLEEPING) - { - if (body->isKinematicObject()) - { - //to calculate velocities next frame - body->saveKinematicState(timeStep); - } - } - } - -} - -void btDiscreteDynamicsWorld::debugDrawWorld() -{ - BT_PROFILE("debugDrawWorld"); - - btCollisionWorld::debugDrawWorld(); - - bool drawConstraints = false; - if (getDebugDrawer()) - { - int mode = getDebugDrawer()->getDebugMode(); - if(mode & (btIDebugDraw::DBG_DrawConstraints | btIDebugDraw::DBG_DrawConstraintLimits)) - { - drawConstraints = true; - } - } - if(drawConstraints) - { - for(int i = getNumConstraints()-1; i>=0 ;i--) - { - btTypedConstraint* constraint = getConstraint(i); - debugDrawConstraint(constraint); - } - } - - - - if (getDebugDrawer() && (getDebugDrawer()->getDebugMode() & (btIDebugDraw::DBG_DrawWireframe | btIDebugDraw::DBG_DrawAabb | btIDebugDraw::DBG_DrawNormals))) - { - int i; - - if (getDebugDrawer() && getDebugDrawer()->getDebugMode()) - { - for (i=0;i<m_actions.size();i++) - { - m_actions[i]->debugDraw(m_debugDrawer); - } - } - } - if (getDebugDrawer()) - getDebugDrawer()->flushLines(); - -} - -void btDiscreteDynamicsWorld::clearForces() -{ - ///@todo: iterate over awake simulation islands! - for ( int i=0;i<m_nonStaticRigidBodies.size();i++) - { - btRigidBody* body = m_nonStaticRigidBodies[i]; - //need to check if next line is ok - //it might break backward compatibility (people applying forces on sleeping objects get never cleared and accumulate on wake-up - body->clearForces(); - } -} - -///apply gravity, call this once per timestep -void btDiscreteDynamicsWorld::applyGravity() -{ - ///@todo: iterate over awake simulation islands! - for ( int i=0;i<m_nonStaticRigidBodies.size();i++) - { - btRigidBody* body = m_nonStaticRigidBodies[i]; - if (body->isActive()) - { - body->applyGravity(); - } - } -} - - -void btDiscreteDynamicsWorld::synchronizeSingleMotionState(btRigidBody* body) -{ - btAssert(body); - - if (body->getMotionState() && !body->isStaticOrKinematicObject()) - { - //we need to call the update at least once, even for sleeping objects - //otherwise the 'graphics' transform never updates properly - ///@todo: add 'dirty' flag - //if (body->getActivationState() != ISLAND_SLEEPING) - { - btTransform interpolatedTransform; - btTransformUtil::integrateTransform(body->getInterpolationWorldTransform(), - body->getInterpolationLinearVelocity(),body->getInterpolationAngularVelocity(), - (m_latencyMotionStateInterpolation && m_fixedTimeStep) ? m_localTime - m_fixedTimeStep : m_localTime*body->getHitFraction(), - interpolatedTransform); - body->getMotionState()->setWorldTransform(interpolatedTransform); - } - } -} - - -void btDiscreteDynamicsWorld::synchronizeMotionStates() -{ -// BT_PROFILE("synchronizeMotionStates"); - if (m_synchronizeAllMotionStates) - { - //iterate over all collision objects - for ( int i=0;i<m_collisionObjects.size();i++) - { - btCollisionObject* colObj = m_collisionObjects[i]; - btRigidBody* body = btRigidBody::upcast(colObj); - if (body) - synchronizeSingleMotionState(body); - } - } else - { - //iterate over all active rigid bodies - for ( int i=0;i<m_nonStaticRigidBodies.size();i++) - { - btRigidBody* body = m_nonStaticRigidBodies[i]; - if (body->isActive()) - synchronizeSingleMotionState(body); - } - } -} - - -int btDiscreteDynamicsWorld::stepSimulation( btScalar timeStep,int maxSubSteps, btScalar fixedTimeStep) -{ - startProfiling(timeStep); - - - int numSimulationSubSteps = 0; - - if (maxSubSteps) - { - //fixed timestep with interpolation - m_fixedTimeStep = fixedTimeStep; - m_localTime += timeStep; - if (m_localTime >= fixedTimeStep) - { - numSimulationSubSteps = int( m_localTime / fixedTimeStep); - m_localTime -= numSimulationSubSteps * fixedTimeStep; - } - } else - { - //variable timestep - fixedTimeStep = timeStep; - m_localTime = m_latencyMotionStateInterpolation ? 0 : timeStep; - m_fixedTimeStep = 0; - if (btFuzzyZero(timeStep)) - { - numSimulationSubSteps = 0; - maxSubSteps = 0; - } else - { - numSimulationSubSteps = 1; - maxSubSteps = 1; - } - } - - //process some debugging flags - if (getDebugDrawer()) - { - btIDebugDraw* debugDrawer = getDebugDrawer (); - gDisableDeactivation = (debugDrawer->getDebugMode() & btIDebugDraw::DBG_NoDeactivation) != 0; - } - if (numSimulationSubSteps) - { - - //clamp the number of substeps, to prevent simulation grinding spiralling down to a halt - int clampedSimulationSteps = (numSimulationSubSteps > maxSubSteps)? maxSubSteps : numSimulationSubSteps; - - saveKinematicState(fixedTimeStep*clampedSimulationSteps); - - applyGravity(); - - - - for (int i=0;i<clampedSimulationSteps;i++) - { - internalSingleStepSimulation(fixedTimeStep); - synchronizeMotionStates(); - } - - } else - { - synchronizeMotionStates(); - } - - clearForces(); - -#ifndef BT_NO_PROFILE - CProfileManager::Increment_Frame_Counter(); -#endif //BT_NO_PROFILE - - return numSimulationSubSteps; -} - -void btDiscreteDynamicsWorld::internalSingleStepSimulation(btScalar timeStep) -{ - - BT_PROFILE("internalSingleStepSimulation"); - - if(0 != m_internalPreTickCallback) { - (*m_internalPreTickCallback)(this, timeStep); - } - - ///apply gravity, predict motion - predictUnconstraintMotion(timeStep); - - btDispatcherInfo& dispatchInfo = getDispatchInfo(); - - dispatchInfo.m_timeStep = timeStep; - dispatchInfo.m_stepCount = 0; - dispatchInfo.m_debugDraw = getDebugDrawer(); - - - createPredictiveContacts(timeStep); - - ///perform collision detection - performDiscreteCollisionDetection(); - - calculateSimulationIslands(); - - - getSolverInfo().m_timeStep = timeStep; - - - - ///solve contact and other joint constraints - solveConstraints(getSolverInfo()); - - ///CallbackTriggers(); - - ///integrate transforms - - integrateTransforms(timeStep); - - ///update vehicle simulation - updateActions(timeStep); - - updateActivationState( timeStep ); - - if(0 != m_internalTickCallback) { - (*m_internalTickCallback)(this, timeStep); - } -} - -void btDiscreteDynamicsWorld::setGravity(const btVector3& gravity) -{ - m_gravity = gravity; - for ( int i=0;i<m_nonStaticRigidBodies.size();i++) - { - btRigidBody* body = m_nonStaticRigidBodies[i]; - if (body->isActive() && !(body->getFlags() &BT_DISABLE_WORLD_GRAVITY)) - { - body->setGravity(gravity); - } - } -} - -btVector3 btDiscreteDynamicsWorld::getGravity () const -{ - return m_gravity; -} - -void btDiscreteDynamicsWorld::addCollisionObject(btCollisionObject* collisionObject, int collisionFilterGroup, int collisionFilterMask) -{ - btCollisionWorld::addCollisionObject(collisionObject,collisionFilterGroup,collisionFilterMask); -} - -void btDiscreteDynamicsWorld::removeCollisionObject(btCollisionObject* collisionObject) -{ - btRigidBody* body = btRigidBody::upcast(collisionObject); - if (body) - removeRigidBody(body); - else - btCollisionWorld::removeCollisionObject(collisionObject); -} - -void btDiscreteDynamicsWorld::removeRigidBody(btRigidBody* body) -{ - m_nonStaticRigidBodies.remove(body); - btCollisionWorld::removeCollisionObject(body); -} - - -void btDiscreteDynamicsWorld::addRigidBody(btRigidBody* body) -{ - if (!body->isStaticOrKinematicObject() && !(body->getFlags() &BT_DISABLE_WORLD_GRAVITY)) - { - body->setGravity(m_gravity); - } - - if (body->getCollisionShape()) - { - if (!body->isStaticObject()) - { - m_nonStaticRigidBodies.push_back(body); - } else - { - body->setActivationState(ISLAND_SLEEPING); - } - - bool isDynamic = !(body->isStaticObject() || body->isKinematicObject()); - int collisionFilterGroup = isDynamic? int(btBroadphaseProxy::DefaultFilter) : int(btBroadphaseProxy::StaticFilter); - int collisionFilterMask = isDynamic? int(btBroadphaseProxy::AllFilter) : int(btBroadphaseProxy::AllFilter ^ btBroadphaseProxy::StaticFilter); - - addCollisionObject(body,collisionFilterGroup,collisionFilterMask); - } -} - -void btDiscreteDynamicsWorld::addRigidBody(btRigidBody* body, int group, int mask) -{ - if (!body->isStaticOrKinematicObject() && !(body->getFlags() &BT_DISABLE_WORLD_GRAVITY)) - { - body->setGravity(m_gravity); - } - - if (body->getCollisionShape()) - { - if (!body->isStaticObject()) - { - m_nonStaticRigidBodies.push_back(body); - } - else - { - body->setActivationState(ISLAND_SLEEPING); - } - addCollisionObject(body,group,mask); - } -} - - -void btDiscreteDynamicsWorld::updateActions(btScalar timeStep) -{ - BT_PROFILE("updateActions"); - - for ( int i=0;i<m_actions.size();i++) - { - m_actions[i]->updateAction( this, timeStep); - } -} - - -void btDiscreteDynamicsWorld::updateActivationState(btScalar timeStep) -{ - BT_PROFILE("updateActivationState"); - - for ( int i=0;i<m_nonStaticRigidBodies.size();i++) - { - btRigidBody* body = m_nonStaticRigidBodies[i]; - if (body) - { - body->updateDeactivation(timeStep); - - if (body->wantsSleeping()) - { - if (body->isStaticOrKinematicObject()) - { - body->setActivationState(ISLAND_SLEEPING); - } else - { - if (body->getActivationState() == ACTIVE_TAG) - body->setActivationState( WANTS_DEACTIVATION ); - if (body->getActivationState() == ISLAND_SLEEPING) - { - body->setAngularVelocity(btVector3(0,0,0)); - body->setLinearVelocity(btVector3(0,0,0)); - } - - } - } else - { - if (body->getActivationState() != DISABLE_DEACTIVATION) - body->setActivationState( ACTIVE_TAG ); - } - } - } -} - -void btDiscreteDynamicsWorld::addConstraint(btTypedConstraint* constraint,bool disableCollisionsBetweenLinkedBodies) -{ - m_constraints.push_back(constraint); - //Make sure the two bodies of a type constraint are different (possibly add this to the btTypedConstraint constructor?) - btAssert(&constraint->getRigidBodyA()!=&constraint->getRigidBodyB()); - - if (disableCollisionsBetweenLinkedBodies) - { - constraint->getRigidBodyA().addConstraintRef(constraint); - constraint->getRigidBodyB().addConstraintRef(constraint); - } -} - -void btDiscreteDynamicsWorld::removeConstraint(btTypedConstraint* constraint) -{ - m_constraints.remove(constraint); - constraint->getRigidBodyA().removeConstraintRef(constraint); - constraint->getRigidBodyB().removeConstraintRef(constraint); -} - -void btDiscreteDynamicsWorld::addAction(btActionInterface* action) -{ - m_actions.push_back(action); -} - -void btDiscreteDynamicsWorld::removeAction(btActionInterface* action) -{ - m_actions.remove(action); -} - - -void btDiscreteDynamicsWorld::addVehicle(btActionInterface* vehicle) -{ - addAction(vehicle); -} - -void btDiscreteDynamicsWorld::removeVehicle(btActionInterface* vehicle) -{ - removeAction(vehicle); -} - -void btDiscreteDynamicsWorld::addCharacter(btActionInterface* character) -{ - addAction(character); -} - -void btDiscreteDynamicsWorld::removeCharacter(btActionInterface* character) -{ - removeAction(character); -} - - - - -void btDiscreteDynamicsWorld::solveConstraints(btContactSolverInfo& solverInfo) -{ - BT_PROFILE("solveConstraints"); - - m_sortedConstraints.resize( m_constraints.size()); - int i; - for (i=0;i<getNumConstraints();i++) - { - m_sortedConstraints[i] = m_constraints[i]; - } - -// btAssert(0); - - - - m_sortedConstraints.quickSort(btSortConstraintOnIslandPredicate()); - - btTypedConstraint** constraintsPtr = getNumConstraints() ? &m_sortedConstraints[0] : 0; - - m_solverIslandCallback->setup(&solverInfo,constraintsPtr,m_sortedConstraints.size(),getDebugDrawer()); - m_constraintSolver->prepareSolve(getCollisionWorld()->getNumCollisionObjects(), getCollisionWorld()->getDispatcher()->getNumManifolds()); - - /// solve all the constraints for this island - m_islandManager->buildAndProcessIslands(getCollisionWorld()->getDispatcher(),getCollisionWorld(),m_solverIslandCallback); - - m_solverIslandCallback->processConstraints(); - - m_constraintSolver->allSolved(solverInfo, m_debugDrawer); -} - - -void btDiscreteDynamicsWorld::calculateSimulationIslands() -{ - BT_PROFILE("calculateSimulationIslands"); - - getSimulationIslandManager()->updateActivationState(getCollisionWorld(),getCollisionWorld()->getDispatcher()); - - { - //merge islands based on speculative contact manifolds too - for (int i=0;i<this->m_predictiveManifolds.size();i++) - { - btPersistentManifold* manifold = m_predictiveManifolds[i]; - - const btCollisionObject* colObj0 = manifold->getBody0(); - const btCollisionObject* colObj1 = manifold->getBody1(); - - if (((colObj0) && (!(colObj0)->isStaticOrKinematicObject())) && - ((colObj1) && (!(colObj1)->isStaticOrKinematicObject()))) - { - getSimulationIslandManager()->getUnionFind().unite((colObj0)->getIslandTag(),(colObj1)->getIslandTag()); - } - } - } - - { - int i; - int numConstraints = int(m_constraints.size()); - for (i=0;i< numConstraints ; i++ ) - { - btTypedConstraint* constraint = m_constraints[i]; - if (constraint->isEnabled()) - { - const btRigidBody* colObj0 = &constraint->getRigidBodyA(); - const btRigidBody* colObj1 = &constraint->getRigidBodyB(); - - if (((colObj0) && (!(colObj0)->isStaticOrKinematicObject())) && - ((colObj1) && (!(colObj1)->isStaticOrKinematicObject()))) - { - getSimulationIslandManager()->getUnionFind().unite((colObj0)->getIslandTag(),(colObj1)->getIslandTag()); - } - } - } - } - - //Store the island id in each body - getSimulationIslandManager()->storeIslandActivationState(getCollisionWorld()); - - -} - - - - -class btClosestNotMeConvexResultCallback : public btCollisionWorld::ClosestConvexResultCallback -{ -public: - - btCollisionObject* m_me; - btScalar m_allowedPenetration; - btOverlappingPairCache* m_pairCache; - btDispatcher* m_dispatcher; - -public: - btClosestNotMeConvexResultCallback (btCollisionObject* me,const btVector3& fromA,const btVector3& toA,btOverlappingPairCache* pairCache,btDispatcher* dispatcher) : - btCollisionWorld::ClosestConvexResultCallback(fromA,toA), - m_me(me), - m_allowedPenetration(0.0f), - m_pairCache(pairCache), - m_dispatcher(dispatcher) - { - } - - virtual btScalar addSingleResult(btCollisionWorld::LocalConvexResult& convexResult,bool normalInWorldSpace) - { - if (convexResult.m_hitCollisionObject == m_me) - return 1.0f; - - //ignore result if there is no contact response - if(!convexResult.m_hitCollisionObject->hasContactResponse()) - return 1.0f; - - btVector3 linVelA,linVelB; - linVelA = m_convexToWorld-m_convexFromWorld; - linVelB = btVector3(0,0,0);//toB.getOrigin()-fromB.getOrigin(); - - btVector3 relativeVelocity = (linVelA-linVelB); - //don't report time of impact for motion away from the contact normal (or causes minor penetration) - if (convexResult.m_hitNormalLocal.dot(relativeVelocity)>=-m_allowedPenetration) - return 1.f; - - return ClosestConvexResultCallback::addSingleResult (convexResult, normalInWorldSpace); - } - - virtual bool needsCollision(btBroadphaseProxy* proxy0) const - { - //don't collide with itself - if (proxy0->m_clientObject == m_me) - return false; - - ///don't do CCD when the collision filters are not matching - if (!ClosestConvexResultCallback::needsCollision(proxy0)) - return false; - - btCollisionObject* otherObj = (btCollisionObject*) proxy0->m_clientObject; - - //call needsResponse, see http://code.google.com/p/bullet/issues/detail?id=179 - if (m_dispatcher->needsResponse(m_me,otherObj)) - { -#if 0 - ///don't do CCD when there are already contact points (touching contact/penetration) - btAlignedObjectArray<btPersistentManifold*> manifoldArray; - btBroadphasePair* collisionPair = m_pairCache->findPair(m_me->getBroadphaseHandle(),proxy0); - if (collisionPair) - { - if (collisionPair->m_algorithm) - { - manifoldArray.resize(0); - collisionPair->m_algorithm->getAllContactManifolds(manifoldArray); - for (int j=0;j<manifoldArray.size();j++) - { - btPersistentManifold* manifold = manifoldArray[j]; - if (manifold->getNumContacts()>0) - return false; - } - } - } -#endif - return true; - } - - return false; - } - - -}; - -///internal debugging variable. this value shouldn't be too high -int gNumClampedCcdMotions=0; - - -void btDiscreteDynamicsWorld::createPredictiveContactsInternal( btRigidBody** bodies, int numBodies, btScalar timeStep) -{ - btTransform predictedTrans; - for ( int i=0;i<numBodies;i++) - { - btRigidBody* body = bodies[i]; - body->setHitFraction(1.f); - - if (body->isActive() && (!body->isStaticOrKinematicObject())) - { - - body->predictIntegratedTransform(timeStep, predictedTrans); - - btScalar squareMotion = (predictedTrans.getOrigin()-body->getWorldTransform().getOrigin()).length2(); - - if (getDispatchInfo().m_useContinuous && body->getCcdSquareMotionThreshold() && body->getCcdSquareMotionThreshold() < squareMotion) - { - BT_PROFILE("predictive convexSweepTest"); - if (body->getCollisionShape()->isConvex()) - { - gNumClampedCcdMotions++; -#ifdef PREDICTIVE_CONTACT_USE_STATIC_ONLY - class StaticOnlyCallback : public btClosestNotMeConvexResultCallback - { - public: - - StaticOnlyCallback (btCollisionObject* me,const btVector3& fromA,const btVector3& toA,btOverlappingPairCache* pairCache,btDispatcher* dispatcher) : - btClosestNotMeConvexResultCallback(me,fromA,toA,pairCache,dispatcher) - { - } - - virtual bool needsCollision(btBroadphaseProxy* proxy0) const - { - btCollisionObject* otherObj = (btCollisionObject*) proxy0->m_clientObject; - if (!otherObj->isStaticOrKinematicObject()) - return false; - return btClosestNotMeConvexResultCallback::needsCollision(proxy0); - } - }; - - StaticOnlyCallback sweepResults(body,body->getWorldTransform().getOrigin(),predictedTrans.getOrigin(),getBroadphase()->getOverlappingPairCache(),getDispatcher()); -#else - btClosestNotMeConvexResultCallback sweepResults(body,body->getWorldTransform().getOrigin(),predictedTrans.getOrigin(),getBroadphase()->getOverlappingPairCache(),getDispatcher()); -#endif - //btConvexShape* convexShape = static_cast<btConvexShape*>(body->getCollisionShape()); - btSphereShape tmpSphere(body->getCcdSweptSphereRadius());//btConvexShape* convexShape = static_cast<btConvexShape*>(body->getCollisionShape()); - sweepResults.m_allowedPenetration=getDispatchInfo().m_allowedCcdPenetration; - - sweepResults.m_collisionFilterGroup = body->getBroadphaseProxy()->m_collisionFilterGroup; - sweepResults.m_collisionFilterMask = body->getBroadphaseProxy()->m_collisionFilterMask; - btTransform modifiedPredictedTrans = predictedTrans; - modifiedPredictedTrans.setBasis(body->getWorldTransform().getBasis()); - - convexSweepTest(&tmpSphere,body->getWorldTransform(),modifiedPredictedTrans,sweepResults); - if (sweepResults.hasHit() && (sweepResults.m_closestHitFraction < 1.f)) - { - - btVector3 distVec = (predictedTrans.getOrigin()-body->getWorldTransform().getOrigin())*sweepResults.m_closestHitFraction; - btScalar distance = distVec.dot(-sweepResults.m_hitNormalWorld); - - - btPersistentManifold* manifold = m_dispatcher1->getNewManifold(body,sweepResults.m_hitCollisionObject); - btMutexLock( &m_predictiveManifoldsMutex ); - m_predictiveManifolds.push_back(manifold); - btMutexUnlock( &m_predictiveManifoldsMutex ); - - btVector3 worldPointB = body->getWorldTransform().getOrigin()+distVec; - btVector3 localPointB = sweepResults.m_hitCollisionObject->getWorldTransform().inverse()*worldPointB; - - btManifoldPoint newPoint(btVector3(0,0,0), localPointB,sweepResults.m_hitNormalWorld,distance); - - bool isPredictive = true; - int index = manifold->addManifoldPoint(newPoint, isPredictive); - btManifoldPoint& pt = manifold->getContactPoint(index); - pt.m_combinedRestitution = 0; - pt.m_combinedFriction = gCalculateCombinedFrictionCallback(body,sweepResults.m_hitCollisionObject); - pt.m_positionWorldOnA = body->getWorldTransform().getOrigin(); - pt.m_positionWorldOnB = worldPointB; - - } - } - } - } - } -} - -void btDiscreteDynamicsWorld::releasePredictiveContacts() -{ - BT_PROFILE( "release predictive contact manifolds" ); - - for ( int i = 0; i < m_predictiveManifolds.size(); i++ ) - { - btPersistentManifold* manifold = m_predictiveManifolds[ i ]; - this->m_dispatcher1->releaseManifold( manifold ); - } - m_predictiveManifolds.clear(); -} - -void btDiscreteDynamicsWorld::createPredictiveContacts(btScalar timeStep) -{ - BT_PROFILE("createPredictiveContacts"); - releasePredictiveContacts(); - if (m_nonStaticRigidBodies.size() > 0) - { - createPredictiveContactsInternal( &m_nonStaticRigidBodies[ 0 ], m_nonStaticRigidBodies.size(), timeStep ); - } -} - -void btDiscreteDynamicsWorld::integrateTransformsInternal( btRigidBody** bodies, int numBodies, btScalar timeStep ) -{ - btTransform predictedTrans; - for (int i=0;i<numBodies;i++) - { - btRigidBody* body = bodies[i]; - body->setHitFraction(1.f); - - if (body->isActive() && (!body->isStaticOrKinematicObject())) - { - - body->predictIntegratedTransform(timeStep, predictedTrans); - - btScalar squareMotion = (predictedTrans.getOrigin()-body->getWorldTransform().getOrigin()).length2(); - - - - if (getDispatchInfo().m_useContinuous && body->getCcdSquareMotionThreshold() && body->getCcdSquareMotionThreshold() < squareMotion) - { - BT_PROFILE("CCD motion clamping"); - if (body->getCollisionShape()->isConvex()) - { - gNumClampedCcdMotions++; -#ifdef USE_STATIC_ONLY - class StaticOnlyCallback : public btClosestNotMeConvexResultCallback - { - public: - - StaticOnlyCallback (btCollisionObject* me,const btVector3& fromA,const btVector3& toA,btOverlappingPairCache* pairCache,btDispatcher* dispatcher) : - btClosestNotMeConvexResultCallback(me,fromA,toA,pairCache,dispatcher) - { - } - - virtual bool needsCollision(btBroadphaseProxy* proxy0) const - { - btCollisionObject* otherObj = (btCollisionObject*) proxy0->m_clientObject; - if (!otherObj->isStaticOrKinematicObject()) - return false; - return btClosestNotMeConvexResultCallback::needsCollision(proxy0); - } - }; - - StaticOnlyCallback sweepResults(body,body->getWorldTransform().getOrigin(),predictedTrans.getOrigin(),getBroadphase()->getOverlappingPairCache(),getDispatcher()); -#else - btClosestNotMeConvexResultCallback sweepResults(body,body->getWorldTransform().getOrigin(),predictedTrans.getOrigin(),getBroadphase()->getOverlappingPairCache(),getDispatcher()); -#endif - //btConvexShape* convexShape = static_cast<btConvexShape*>(body->getCollisionShape()); - btSphereShape tmpSphere(body->getCcdSweptSphereRadius());//btConvexShape* convexShape = static_cast<btConvexShape*>(body->getCollisionShape()); - sweepResults.m_allowedPenetration=getDispatchInfo().m_allowedCcdPenetration; - - sweepResults.m_collisionFilterGroup = body->getBroadphaseProxy()->m_collisionFilterGroup; - sweepResults.m_collisionFilterMask = body->getBroadphaseProxy()->m_collisionFilterMask; - btTransform modifiedPredictedTrans = predictedTrans; - modifiedPredictedTrans.setBasis(body->getWorldTransform().getBasis()); - - convexSweepTest(&tmpSphere,body->getWorldTransform(),modifiedPredictedTrans,sweepResults); - if (sweepResults.hasHit() && (sweepResults.m_closestHitFraction < 1.f)) - { - - //printf("clamped integration to hit fraction = %f\n",fraction); - body->setHitFraction(sweepResults.m_closestHitFraction); - body->predictIntegratedTransform(timeStep*body->getHitFraction(), predictedTrans); - body->setHitFraction(0.f); - body->proceedToTransform( predictedTrans); - -#if 0 - btVector3 linVel = body->getLinearVelocity(); - - btScalar maxSpeed = body->getCcdMotionThreshold()/getSolverInfo().m_timeStep; - btScalar maxSpeedSqr = maxSpeed*maxSpeed; - if (linVel.length2()>maxSpeedSqr) - { - linVel.normalize(); - linVel*= maxSpeed; - body->setLinearVelocity(linVel); - btScalar ms2 = body->getLinearVelocity().length2(); - body->predictIntegratedTransform(timeStep, predictedTrans); - - btScalar sm2 = (predictedTrans.getOrigin()-body->getWorldTransform().getOrigin()).length2(); - btScalar smt = body->getCcdSquareMotionThreshold(); - printf("sm2=%f\n",sm2); - } -#else - - //don't apply the collision response right now, it will happen next frame - //if you really need to, you can uncomment next 3 lines. Note that is uses zero restitution. - //btScalar appliedImpulse = 0.f; - //btScalar depth = 0.f; - //appliedImpulse = resolveSingleCollision(body,(btCollisionObject*)sweepResults.m_hitCollisionObject,sweepResults.m_hitPointWorld,sweepResults.m_hitNormalWorld,getSolverInfo(), depth); - - -#endif - - continue; - } - } - } - - - body->proceedToTransform( predictedTrans); - - } - - } - -} - -void btDiscreteDynamicsWorld::integrateTransforms(btScalar timeStep) -{ - BT_PROFILE("integrateTransforms"); - if (m_nonStaticRigidBodies.size() > 0) - { - integrateTransformsInternal(&m_nonStaticRigidBodies[0], m_nonStaticRigidBodies.size(), timeStep); - } - - ///this should probably be switched on by default, but it is not well tested yet - if (m_applySpeculativeContactRestitution) - { - BT_PROFILE("apply speculative contact restitution"); - for (int i=0;i<m_predictiveManifolds.size();i++) - { - btPersistentManifold* manifold = m_predictiveManifolds[i]; - btRigidBody* body0 = btRigidBody::upcast((btCollisionObject*)manifold->getBody0()); - btRigidBody* body1 = btRigidBody::upcast((btCollisionObject*)manifold->getBody1()); - - for (int p=0;p<manifold->getNumContacts();p++) - { - const btManifoldPoint& pt = manifold->getContactPoint(p); - btScalar combinedRestitution = gCalculateCombinedRestitutionCallback(body0, body1); - - if (combinedRestitution>0 && pt.m_appliedImpulse != 0.f) - //if (pt.getDistance()>0 && combinedRestitution>0 && pt.m_appliedImpulse != 0.f) - { - btVector3 imp = -pt.m_normalWorldOnB * pt.m_appliedImpulse* combinedRestitution; - - const btVector3& pos1 = pt.getPositionWorldOnA(); - const btVector3& pos2 = pt.getPositionWorldOnB(); - - btVector3 rel_pos0 = pos1 - body0->getWorldTransform().getOrigin(); - btVector3 rel_pos1 = pos2 - body1->getWorldTransform().getOrigin(); - - if (body0) - body0->applyImpulse(imp,rel_pos0); - if (body1) - body1->applyImpulse(-imp,rel_pos1); - } - } - } - } -} - - - - - -void btDiscreteDynamicsWorld::predictUnconstraintMotion(btScalar timeStep) -{ - BT_PROFILE("predictUnconstraintMotion"); - for ( int i=0;i<m_nonStaticRigidBodies.size();i++) - { - btRigidBody* body = m_nonStaticRigidBodies[i]; - if (!body->isStaticOrKinematicObject()) - { - //don't integrate/update velocities here, it happens in the constraint solver - - body->applyDamping(timeStep); - - body->predictIntegratedTransform(timeStep,body->getInterpolationWorldTransform()); - } - } -} - - -void btDiscreteDynamicsWorld::startProfiling(btScalar timeStep) -{ - (void)timeStep; - -#ifndef BT_NO_PROFILE - CProfileManager::Reset(); -#endif //BT_NO_PROFILE - -} - - - - - - -void btDiscreteDynamicsWorld::debugDrawConstraint(btTypedConstraint* constraint) -{ - bool drawFrames = (getDebugDrawer()->getDebugMode() & btIDebugDraw::DBG_DrawConstraints) != 0; - bool drawLimits = (getDebugDrawer()->getDebugMode() & btIDebugDraw::DBG_DrawConstraintLimits) != 0; - btScalar dbgDrawSize = constraint->getDbgDrawSize(); - if(dbgDrawSize <= btScalar(0.f)) - { - return; - } - - switch(constraint->getConstraintType()) - { - case POINT2POINT_CONSTRAINT_TYPE: - { - btPoint2PointConstraint* p2pC = (btPoint2PointConstraint*)constraint; - btTransform tr; - tr.setIdentity(); - btVector3 pivot = p2pC->getPivotInA(); - pivot = p2pC->getRigidBodyA().getCenterOfMassTransform() * pivot; - tr.setOrigin(pivot); - getDebugDrawer()->drawTransform(tr, dbgDrawSize); - // that ideally should draw the same frame - pivot = p2pC->getPivotInB(); - pivot = p2pC->getRigidBodyB().getCenterOfMassTransform() * pivot; - tr.setOrigin(pivot); - if(drawFrames) getDebugDrawer()->drawTransform(tr, dbgDrawSize); - } - break; - case HINGE_CONSTRAINT_TYPE: - { - btHingeConstraint* pHinge = (btHingeConstraint*)constraint; - btTransform tr = pHinge->getRigidBodyA().getCenterOfMassTransform() * pHinge->getAFrame(); - if(drawFrames) getDebugDrawer()->drawTransform(tr, dbgDrawSize); - tr = pHinge->getRigidBodyB().getCenterOfMassTransform() * pHinge->getBFrame(); - if(drawFrames) getDebugDrawer()->drawTransform(tr, dbgDrawSize); - btScalar minAng = pHinge->getLowerLimit(); - btScalar maxAng = pHinge->getUpperLimit(); - if(minAng == maxAng) - { - break; - } - bool drawSect = true; - if(!pHinge->hasLimit()) - { - minAng = btScalar(0.f); - maxAng = SIMD_2_PI; - drawSect = false; - } - if(drawLimits) - { - btVector3& center = tr.getOrigin(); - btVector3 normal = tr.getBasis().getColumn(2); - btVector3 axis = tr.getBasis().getColumn(0); - getDebugDrawer()->drawArc(center, normal, axis, dbgDrawSize, dbgDrawSize, minAng, maxAng, btVector3(0,0,0), drawSect); - } - } - break; - case CONETWIST_CONSTRAINT_TYPE: - { - btConeTwistConstraint* pCT = (btConeTwistConstraint*)constraint; - btTransform tr = pCT->getRigidBodyA().getCenterOfMassTransform() * pCT->getAFrame(); - if(drawFrames) getDebugDrawer()->drawTransform(tr, dbgDrawSize); - tr = pCT->getRigidBodyB().getCenterOfMassTransform() * pCT->getBFrame(); - if(drawFrames) getDebugDrawer()->drawTransform(tr, dbgDrawSize); - if(drawLimits) - { - //const btScalar length = btScalar(5); - const btScalar length = dbgDrawSize; - static int nSegments = 8*4; - btScalar fAngleInRadians = btScalar(2.*3.1415926) * (btScalar)(nSegments-1)/btScalar(nSegments); - btVector3 pPrev = pCT->GetPointForAngle(fAngleInRadians, length); - pPrev = tr * pPrev; - for (int i=0; i<nSegments; i++) - { - fAngleInRadians = btScalar(2.*3.1415926) * (btScalar)i/btScalar(nSegments); - btVector3 pCur = pCT->GetPointForAngle(fAngleInRadians, length); - pCur = tr * pCur; - getDebugDrawer()->drawLine(pPrev, pCur, btVector3(0,0,0)); - - if (i%(nSegments/8) == 0) - getDebugDrawer()->drawLine(tr.getOrigin(), pCur, btVector3(0,0,0)); - - pPrev = pCur; - } - btScalar tws = pCT->getTwistSpan(); - btScalar twa = pCT->getTwistAngle(); - bool useFrameB = (pCT->getRigidBodyB().getInvMass() > btScalar(0.f)); - if(useFrameB) - { - tr = pCT->getRigidBodyB().getCenterOfMassTransform() * pCT->getBFrame(); - } - else - { - tr = pCT->getRigidBodyA().getCenterOfMassTransform() * pCT->getAFrame(); - } - btVector3 pivot = tr.getOrigin(); - btVector3 normal = tr.getBasis().getColumn(0); - btVector3 axis1 = tr.getBasis().getColumn(1); - getDebugDrawer()->drawArc(pivot, normal, axis1, dbgDrawSize, dbgDrawSize, -twa-tws, -twa+tws, btVector3(0,0,0), true); - - } - } - break; - case D6_SPRING_CONSTRAINT_TYPE: - case D6_CONSTRAINT_TYPE: - { - btGeneric6DofConstraint* p6DOF = (btGeneric6DofConstraint*)constraint; - btTransform tr = p6DOF->getCalculatedTransformA(); - if(drawFrames) getDebugDrawer()->drawTransform(tr, dbgDrawSize); - tr = p6DOF->getCalculatedTransformB(); - if(drawFrames) getDebugDrawer()->drawTransform(tr, dbgDrawSize); - if(drawLimits) - { - tr = p6DOF->getCalculatedTransformA(); - const btVector3& center = p6DOF->getCalculatedTransformB().getOrigin(); - btVector3 up = tr.getBasis().getColumn(2); - btVector3 axis = tr.getBasis().getColumn(0); - btScalar minTh = p6DOF->getRotationalLimitMotor(1)->m_loLimit; - btScalar maxTh = p6DOF->getRotationalLimitMotor(1)->m_hiLimit; - btScalar minPs = p6DOF->getRotationalLimitMotor(2)->m_loLimit; - btScalar maxPs = p6DOF->getRotationalLimitMotor(2)->m_hiLimit; - getDebugDrawer()->drawSpherePatch(center, up, axis, dbgDrawSize * btScalar(.9f), minTh, maxTh, minPs, maxPs, btVector3(0,0,0)); - axis = tr.getBasis().getColumn(1); - btScalar ay = p6DOF->getAngle(1); - btScalar az = p6DOF->getAngle(2); - btScalar cy = btCos(ay); - btScalar sy = btSin(ay); - btScalar cz = btCos(az); - btScalar sz = btSin(az); - btVector3 ref; - ref[0] = cy*cz*axis[0] + cy*sz*axis[1] - sy*axis[2]; - ref[1] = -sz*axis[0] + cz*axis[1]; - ref[2] = cz*sy*axis[0] + sz*sy*axis[1] + cy*axis[2]; - tr = p6DOF->getCalculatedTransformB(); - btVector3 normal = -tr.getBasis().getColumn(0); - btScalar minFi = p6DOF->getRotationalLimitMotor(0)->m_loLimit; - btScalar maxFi = p6DOF->getRotationalLimitMotor(0)->m_hiLimit; - if(minFi > maxFi) - { - getDebugDrawer()->drawArc(center, normal, ref, dbgDrawSize, dbgDrawSize, -SIMD_PI, SIMD_PI, btVector3(0,0,0), false); - } - else if(minFi < maxFi) - { - getDebugDrawer()->drawArc(center, normal, ref, dbgDrawSize, dbgDrawSize, minFi, maxFi, btVector3(0,0,0), true); - } - tr = p6DOF->getCalculatedTransformA(); - btVector3 bbMin = p6DOF->getTranslationalLimitMotor()->m_lowerLimit; - btVector3 bbMax = p6DOF->getTranslationalLimitMotor()->m_upperLimit; - getDebugDrawer()->drawBox(bbMin, bbMax, tr, btVector3(0,0,0)); - } - } - break; - ///note: the code for D6_SPRING_2_CONSTRAINT_TYPE is identical to D6_CONSTRAINT_TYPE, the D6_CONSTRAINT_TYPE+D6_SPRING_CONSTRAINT_TYPE will likely become obsolete/deprecated at some stage - case D6_SPRING_2_CONSTRAINT_TYPE: - { - { - btGeneric6DofSpring2Constraint* p6DOF = (btGeneric6DofSpring2Constraint*)constraint; - btTransform tr = p6DOF->getCalculatedTransformA(); - if (drawFrames) getDebugDrawer()->drawTransform(tr, dbgDrawSize); - tr = p6DOF->getCalculatedTransformB(); - if (drawFrames) getDebugDrawer()->drawTransform(tr, dbgDrawSize); - if (drawLimits) - { - tr = p6DOF->getCalculatedTransformA(); - const btVector3& center = p6DOF->getCalculatedTransformB().getOrigin(); - btVector3 up = tr.getBasis().getColumn(2); - btVector3 axis = tr.getBasis().getColumn(0); - btScalar minTh = p6DOF->getRotationalLimitMotor(1)->m_loLimit; - btScalar maxTh = p6DOF->getRotationalLimitMotor(1)->m_hiLimit; - btScalar minPs = p6DOF->getRotationalLimitMotor(2)->m_loLimit; - btScalar maxPs = p6DOF->getRotationalLimitMotor(2)->m_hiLimit; - getDebugDrawer()->drawSpherePatch(center, up, axis, dbgDrawSize * btScalar(.9f), minTh, maxTh, minPs, maxPs, btVector3(0, 0, 0)); - axis = tr.getBasis().getColumn(1); - btScalar ay = p6DOF->getAngle(1); - btScalar az = p6DOF->getAngle(2); - btScalar cy = btCos(ay); - btScalar sy = btSin(ay); - btScalar cz = btCos(az); - btScalar sz = btSin(az); - btVector3 ref; - ref[0] = cy*cz*axis[0] + cy*sz*axis[1] - sy*axis[2]; - ref[1] = -sz*axis[0] + cz*axis[1]; - ref[2] = cz*sy*axis[0] + sz*sy*axis[1] + cy*axis[2]; - tr = p6DOF->getCalculatedTransformB(); - btVector3 normal = -tr.getBasis().getColumn(0); - btScalar minFi = p6DOF->getRotationalLimitMotor(0)->m_loLimit; - btScalar maxFi = p6DOF->getRotationalLimitMotor(0)->m_hiLimit; - if (minFi > maxFi) - { - getDebugDrawer()->drawArc(center, normal, ref, dbgDrawSize, dbgDrawSize, -SIMD_PI, SIMD_PI, btVector3(0, 0, 0), false); - } - else if (minFi < maxFi) - { - getDebugDrawer()->drawArc(center, normal, ref, dbgDrawSize, dbgDrawSize, minFi, maxFi, btVector3(0, 0, 0), true); - } - tr = p6DOF->getCalculatedTransformA(); - btVector3 bbMin = p6DOF->getTranslationalLimitMotor()->m_lowerLimit; - btVector3 bbMax = p6DOF->getTranslationalLimitMotor()->m_upperLimit; - getDebugDrawer()->drawBox(bbMin, bbMax, tr, btVector3(0, 0, 0)); - } - } - break; - } - case SLIDER_CONSTRAINT_TYPE: - { - btSliderConstraint* pSlider = (btSliderConstraint*)constraint; - btTransform tr = pSlider->getCalculatedTransformA(); - if(drawFrames) getDebugDrawer()->drawTransform(tr, dbgDrawSize); - tr = pSlider->getCalculatedTransformB(); - if(drawFrames) getDebugDrawer()->drawTransform(tr, dbgDrawSize); - if(drawLimits) - { - btTransform tr = pSlider->getUseLinearReferenceFrameA() ? pSlider->getCalculatedTransformA() : pSlider->getCalculatedTransformB(); - btVector3 li_min = tr * btVector3(pSlider->getLowerLinLimit(), 0.f, 0.f); - btVector3 li_max = tr * btVector3(pSlider->getUpperLinLimit(), 0.f, 0.f); - getDebugDrawer()->drawLine(li_min, li_max, btVector3(0, 0, 0)); - btVector3 normal = tr.getBasis().getColumn(0); - btVector3 axis = tr.getBasis().getColumn(1); - btScalar a_min = pSlider->getLowerAngLimit(); - btScalar a_max = pSlider->getUpperAngLimit(); - const btVector3& center = pSlider->getCalculatedTransformB().getOrigin(); - getDebugDrawer()->drawArc(center, normal, axis, dbgDrawSize, dbgDrawSize, a_min, a_max, btVector3(0,0,0), true); - } - } - break; - default : - break; - } - return; -} - - - - - -void btDiscreteDynamicsWorld::setConstraintSolver(btConstraintSolver* solver) -{ - if (m_ownsConstraintSolver) - { - btAlignedFree( m_constraintSolver); - } - m_ownsConstraintSolver = false; - m_constraintSolver = solver; - m_solverIslandCallback->m_solver = solver; -} - -btConstraintSolver* btDiscreteDynamicsWorld::getConstraintSolver() -{ - return m_constraintSolver; -} - - -int btDiscreteDynamicsWorld::getNumConstraints() const -{ - return int(m_constraints.size()); -} -btTypedConstraint* btDiscreteDynamicsWorld::getConstraint(int index) -{ - return m_constraints[index]; -} -const btTypedConstraint* btDiscreteDynamicsWorld::getConstraint(int index) const -{ - return m_constraints[index]; -} - - - -void btDiscreteDynamicsWorld::serializeRigidBodies(btSerializer* serializer) -{ - int i; - //serialize all collision objects - for (i=0;i<m_collisionObjects.size();i++) - { - btCollisionObject* colObj = m_collisionObjects[i]; - if (colObj->getInternalType() & btCollisionObject::CO_RIGID_BODY) - { - int len = colObj->calculateSerializeBufferSize(); - btChunk* chunk = serializer->allocate(len,1); - const char* structType = colObj->serialize(chunk->m_oldPtr, serializer); - serializer->finalizeChunk(chunk,structType,BT_RIGIDBODY_CODE,colObj); - } - } - - for (i=0;i<m_constraints.size();i++) - { - btTypedConstraint* constraint = m_constraints[i]; - int size = constraint->calculateSerializeBufferSize(); - btChunk* chunk = serializer->allocate(size,1); - const char* structType = constraint->serialize(chunk->m_oldPtr,serializer); - serializer->finalizeChunk(chunk,structType,BT_CONSTRAINT_CODE,constraint); - } -} - - - - -void btDiscreteDynamicsWorld::serializeDynamicsWorldInfo(btSerializer* serializer) -{ -#ifdef BT_USE_DOUBLE_PRECISION - int len = sizeof(btDynamicsWorldDoubleData); - btChunk* chunk = serializer->allocate(len,1); - btDynamicsWorldDoubleData* worldInfo = (btDynamicsWorldDoubleData*)chunk->m_oldPtr; -#else//BT_USE_DOUBLE_PRECISION - int len = sizeof(btDynamicsWorldFloatData); - btChunk* chunk = serializer->allocate(len,1); - btDynamicsWorldFloatData* worldInfo = (btDynamicsWorldFloatData*)chunk->m_oldPtr; -#endif//BT_USE_DOUBLE_PRECISION - - memset(worldInfo ,0x00,len); - - m_gravity.serialize(worldInfo->m_gravity); - worldInfo->m_solverInfo.m_tau = getSolverInfo().m_tau; - worldInfo->m_solverInfo.m_damping = getSolverInfo().m_damping; - worldInfo->m_solverInfo.m_friction = getSolverInfo().m_friction; - worldInfo->m_solverInfo.m_timeStep = getSolverInfo().m_timeStep; - - worldInfo->m_solverInfo.m_restitution = getSolverInfo().m_restitution; - worldInfo->m_solverInfo.m_maxErrorReduction = getSolverInfo().m_maxErrorReduction; - worldInfo->m_solverInfo.m_sor = getSolverInfo().m_sor; - worldInfo->m_solverInfo.m_erp = getSolverInfo().m_erp; - - worldInfo->m_solverInfo.m_erp2 = getSolverInfo().m_erp2; - worldInfo->m_solverInfo.m_globalCfm = getSolverInfo().m_globalCfm; - worldInfo->m_solverInfo.m_splitImpulsePenetrationThreshold = getSolverInfo().m_splitImpulsePenetrationThreshold; - worldInfo->m_solverInfo.m_splitImpulseTurnErp = getSolverInfo().m_splitImpulseTurnErp; - - worldInfo->m_solverInfo.m_linearSlop = getSolverInfo().m_linearSlop; - worldInfo->m_solverInfo.m_warmstartingFactor = getSolverInfo().m_warmstartingFactor; - worldInfo->m_solverInfo.m_maxGyroscopicForce = getSolverInfo().m_maxGyroscopicForce; - worldInfo->m_solverInfo.m_singleAxisRollingFrictionThreshold = getSolverInfo().m_singleAxisRollingFrictionThreshold; - - worldInfo->m_solverInfo.m_numIterations = getSolverInfo().m_numIterations; - worldInfo->m_solverInfo.m_solverMode = getSolverInfo().m_solverMode; - worldInfo->m_solverInfo.m_restingContactRestitutionThreshold = getSolverInfo().m_restingContactRestitutionThreshold; - worldInfo->m_solverInfo.m_minimumSolverBatchSize = getSolverInfo().m_minimumSolverBatchSize; - - worldInfo->m_solverInfo.m_splitImpulse = getSolverInfo().m_splitImpulse; - - // Fill padding with zeros to appease msan. - memset(worldInfo->m_solverInfo.m_padding, 0, sizeof(worldInfo->m_solverInfo.m_padding)); - -#ifdef BT_USE_DOUBLE_PRECISION - const char* structType = "btDynamicsWorldDoubleData"; -#else//BT_USE_DOUBLE_PRECISION - const char* structType = "btDynamicsWorldFloatData"; -#endif//BT_USE_DOUBLE_PRECISION - serializer->finalizeChunk(chunk,structType,BT_DYNAMICSWORLD_CODE,worldInfo); -} - -void btDiscreteDynamicsWorld::serialize(btSerializer* serializer) -{ - - serializer->startSerialization(); - - serializeDynamicsWorldInfo(serializer); - - serializeCollisionObjects(serializer); - - serializeRigidBodies(serializer); - - serializer->finishSerialization(); -} - diff --git a/thirdparty/bullet/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorld.h b/thirdparty/bullet/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorld.h deleted file mode 100644 index b0d19f48a3..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorld.h +++ /dev/null @@ -1,239 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2009 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - - -#ifndef BT_DISCRETE_DYNAMICS_WORLD_H -#define BT_DISCRETE_DYNAMICS_WORLD_H - -#include "btDynamicsWorld.h" - -class btDispatcher; -class btOverlappingPairCache; -class btConstraintSolver; -class btSimulationIslandManager; -class btTypedConstraint; -class btActionInterface; -class btPersistentManifold; -class btIDebugDraw; -struct InplaceSolverIslandCallback; - -#include "LinearMath/btAlignedObjectArray.h" -#include "LinearMath/btThreads.h" - - -///btDiscreteDynamicsWorld provides discrete rigid body simulation -///those classes replace the obsolete CcdPhysicsEnvironment/CcdPhysicsController -ATTRIBUTE_ALIGNED16(class) btDiscreteDynamicsWorld : public btDynamicsWorld -{ -protected: - - btAlignedObjectArray<btTypedConstraint*> m_sortedConstraints; - InplaceSolverIslandCallback* m_solverIslandCallback; - - btConstraintSolver* m_constraintSolver; - - btSimulationIslandManager* m_islandManager; - - btAlignedObjectArray<btTypedConstraint*> m_constraints; - - btAlignedObjectArray<btRigidBody*> m_nonStaticRigidBodies; - - btVector3 m_gravity; - - //for variable timesteps - btScalar m_localTime; - btScalar m_fixedTimeStep; - //for variable timesteps - - bool m_ownsIslandManager; - bool m_ownsConstraintSolver; - bool m_synchronizeAllMotionStates; - bool m_applySpeculativeContactRestitution; - - btAlignedObjectArray<btActionInterface*> m_actions; - - int m_profileTimings; - - bool m_latencyMotionStateInterpolation; - - btAlignedObjectArray<btPersistentManifold*> m_predictiveManifolds; - btSpinMutex m_predictiveManifoldsMutex; // used to synchronize threads creating predictive contacts - - virtual void predictUnconstraintMotion(btScalar timeStep); - - void integrateTransformsInternal( btRigidBody** bodies, int numBodies, btScalar timeStep ); // can be called in parallel - virtual void integrateTransforms(btScalar timeStep); - - virtual void calculateSimulationIslands(); - - virtual void solveConstraints(btContactSolverInfo& solverInfo); - - virtual void updateActivationState(btScalar timeStep); - - void updateActions(btScalar timeStep); - - void startProfiling(btScalar timeStep); - - virtual void internalSingleStepSimulation( btScalar timeStep); - - void releasePredictiveContacts(); - void createPredictiveContactsInternal( btRigidBody** bodies, int numBodies, btScalar timeStep ); // can be called in parallel - virtual void createPredictiveContacts(btScalar timeStep); - - virtual void saveKinematicState(btScalar timeStep); - - void serializeRigidBodies(btSerializer* serializer); - - void serializeDynamicsWorldInfo(btSerializer* serializer); - -public: - - - BT_DECLARE_ALIGNED_ALLOCATOR(); - - ///this btDiscreteDynamicsWorld constructor gets created objects from the user, and will not delete those - btDiscreteDynamicsWorld(btDispatcher* dispatcher,btBroadphaseInterface* pairCache,btConstraintSolver* constraintSolver,btCollisionConfiguration* collisionConfiguration); - - virtual ~btDiscreteDynamicsWorld(); - - ///if maxSubSteps > 0, it will interpolate motion between fixedTimeStep's - virtual int stepSimulation( btScalar timeStep,int maxSubSteps=1, btScalar fixedTimeStep=btScalar(1.)/btScalar(60.)); - - - virtual void synchronizeMotionStates(); - - ///this can be useful to synchronize a single rigid body -> graphics object - void synchronizeSingleMotionState(btRigidBody* body); - - virtual void addConstraint(btTypedConstraint* constraint, bool disableCollisionsBetweenLinkedBodies=false); - - virtual void removeConstraint(btTypedConstraint* constraint); - - virtual void addAction(btActionInterface*); - - virtual void removeAction(btActionInterface*); - - btSimulationIslandManager* getSimulationIslandManager() - { - return m_islandManager; - } - - const btSimulationIslandManager* getSimulationIslandManager() const - { - return m_islandManager; - } - - btCollisionWorld* getCollisionWorld() - { - return this; - } - - virtual void setGravity(const btVector3& gravity); - - virtual btVector3 getGravity () const; - - virtual void addCollisionObject(btCollisionObject* collisionObject, int collisionFilterGroup=btBroadphaseProxy::StaticFilter, int collisionFilterMask=btBroadphaseProxy::AllFilter ^ btBroadphaseProxy::StaticFilter); - - virtual void addRigidBody(btRigidBody* body); - - virtual void addRigidBody(btRigidBody* body, int group, int mask); - - virtual void removeRigidBody(btRigidBody* body); - - ///removeCollisionObject will first check if it is a rigid body, if so call removeRigidBody otherwise call btCollisionWorld::removeCollisionObject - virtual void removeCollisionObject(btCollisionObject* collisionObject); - - - virtual void debugDrawConstraint(btTypedConstraint* constraint); - - virtual void debugDrawWorld(); - - virtual void setConstraintSolver(btConstraintSolver* solver); - - virtual btConstraintSolver* getConstraintSolver(); - - virtual int getNumConstraints() const; - - virtual btTypedConstraint* getConstraint(int index) ; - - virtual const btTypedConstraint* getConstraint(int index) const; - - - virtual btDynamicsWorldType getWorldType() const - { - return BT_DISCRETE_DYNAMICS_WORLD; - } - - ///the forces on each rigidbody is accumulating together with gravity. clear this after each timestep. - virtual void clearForces(); - - ///apply gravity, call this once per timestep - virtual void applyGravity(); - - virtual void setNumTasks(int numTasks) - { - (void) numTasks; - } - - ///obsolete, use updateActions instead - virtual void updateVehicles(btScalar timeStep) - { - updateActions(timeStep); - } - - ///obsolete, use addAction instead - virtual void addVehicle(btActionInterface* vehicle); - ///obsolete, use removeAction instead - virtual void removeVehicle(btActionInterface* vehicle); - ///obsolete, use addAction instead - virtual void addCharacter(btActionInterface* character); - ///obsolete, use removeAction instead - virtual void removeCharacter(btActionInterface* character); - - void setSynchronizeAllMotionStates(bool synchronizeAll) - { - m_synchronizeAllMotionStates = synchronizeAll; - } - bool getSynchronizeAllMotionStates() const - { - return m_synchronizeAllMotionStates; - } - - void setApplySpeculativeContactRestitution(bool enable) - { - m_applySpeculativeContactRestitution = enable; - } - - bool getApplySpeculativeContactRestitution() const - { - return m_applySpeculativeContactRestitution; - } - - ///Preliminary serialization test for Bullet 2.76. Loading those files requires a separate parser (see Bullet/Demos/SerializeDemo) - virtual void serialize(btSerializer* serializer); - - ///Interpolate motion state between previous and current transform, instead of current and next transform. - ///This can relieve discontinuities in the rendering, due to penetrations - void setLatencyMotionStateInterpolation(bool latencyInterpolation ) - { - m_latencyMotionStateInterpolation = latencyInterpolation; - } - bool getLatencyMotionStateInterpolation() const - { - return m_latencyMotionStateInterpolation; - } -}; - -#endif //BT_DISCRETE_DYNAMICS_WORLD_H diff --git a/thirdparty/bullet/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorldMt.cpp b/thirdparty/bullet/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorldMt.cpp deleted file mode 100644 index 1d10bad922..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorldMt.cpp +++ /dev/null @@ -1,327 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2009 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - - -#include "btDiscreteDynamicsWorldMt.h" - -//collision detection -#include "BulletCollision/CollisionDispatch/btCollisionDispatcher.h" -#include "BulletCollision/BroadphaseCollision/btSimpleBroadphase.h" -#include "BulletCollision/BroadphaseCollision/btCollisionAlgorithm.h" -#include "BulletCollision/CollisionShapes/btCollisionShape.h" -#include "btSimulationIslandManagerMt.h" -#include "LinearMath/btTransformUtil.h" -#include "LinearMath/btQuickprof.h" - -//rigidbody & constraints -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include "BulletDynamics/ConstraintSolver/btSequentialImpulseConstraintSolver.h" -#include "BulletDynamics/ConstraintSolver/btContactSolverInfo.h" -#include "BulletDynamics/ConstraintSolver/btTypedConstraint.h" -#include "BulletDynamics/ConstraintSolver/btPoint2PointConstraint.h" -#include "BulletDynamics/ConstraintSolver/btHingeConstraint.h" -#include "BulletDynamics/ConstraintSolver/btConeTwistConstraint.h" -#include "BulletDynamics/ConstraintSolver/btGeneric6DofConstraint.h" -#include "BulletDynamics/ConstraintSolver/btGeneric6DofSpring2Constraint.h" -#include "BulletDynamics/ConstraintSolver/btSliderConstraint.h" -#include "BulletDynamics/ConstraintSolver/btContactConstraint.h" - - -#include "LinearMath/btIDebugDraw.h" -#include "BulletCollision/CollisionShapes/btSphereShape.h" - - -#include "BulletDynamics/Dynamics/btActionInterface.h" -#include "LinearMath/btQuickprof.h" -#include "LinearMath/btMotionState.h" - -#include "LinearMath/btSerializer.h" - - -struct InplaceSolverIslandCallbackMt : public btSimulationIslandManagerMt::IslandCallback -{ - btContactSolverInfo* m_solverInfo; - btConstraintSolver* m_solver; - btIDebugDraw* m_debugDrawer; - btDispatcher* m_dispatcher; - - InplaceSolverIslandCallbackMt( - btConstraintSolver* solver, - btStackAlloc* stackAlloc, - btDispatcher* dispatcher) - :m_solverInfo(NULL), - m_solver(solver), - m_debugDrawer(NULL), - m_dispatcher(dispatcher) - { - - } - - InplaceSolverIslandCallbackMt& operator=(InplaceSolverIslandCallbackMt& other) - { - btAssert(0); - (void)other; - return *this; - } - - SIMD_FORCE_INLINE void setup ( btContactSolverInfo* solverInfo, btIDebugDraw* debugDrawer) - { - btAssert(solverInfo); - m_solverInfo = solverInfo; - m_debugDrawer = debugDrawer; - } - - - virtual void processIsland( btCollisionObject** bodies, - int numBodies, - btPersistentManifold** manifolds, - int numManifolds, - btTypedConstraint** constraints, - int numConstraints, - int islandId - ) - { - m_solver->solveGroup( bodies, - numBodies, - manifolds, - numManifolds, - constraints, - numConstraints, - *m_solverInfo, - m_debugDrawer, - m_dispatcher - ); - } - -}; - - -/// -/// btConstraintSolverPoolMt -/// - -btConstraintSolverPoolMt::ThreadSolver* btConstraintSolverPoolMt::getAndLockThreadSolver() -{ - int i = 0; -#if BT_THREADSAFE - i = btGetCurrentThreadIndex() % m_solvers.size(); -#endif // #if BT_THREADSAFE - while ( true ) - { - ThreadSolver& solver = m_solvers[ i ]; - if ( solver.mutex.tryLock() ) - { - return &solver; - } - // failed, try the next one - i = ( i + 1 ) % m_solvers.size(); - } - return NULL; -} - -void btConstraintSolverPoolMt::init( btConstraintSolver** solvers, int numSolvers ) -{ - m_solverType = BT_SEQUENTIAL_IMPULSE_SOLVER; - m_solvers.resize( numSolvers ); - for ( int i = 0; i < numSolvers; ++i ) - { - m_solvers[ i ].solver = solvers[ i ]; - } - if ( numSolvers > 0 ) - { - m_solverType = solvers[ 0 ]->getSolverType(); - } -} - -// create the solvers for me -btConstraintSolverPoolMt::btConstraintSolverPoolMt( int numSolvers ) -{ - btAlignedObjectArray<btConstraintSolver*> solvers; - solvers.reserve( numSolvers ); - for ( int i = 0; i < numSolvers; ++i ) - { - btConstraintSolver* solver = new btSequentialImpulseConstraintSolver(); - solvers.push_back( solver ); - } - init( &solvers[ 0 ], numSolvers ); -} - -// pass in fully constructed solvers (destructor will delete them) -btConstraintSolverPoolMt::btConstraintSolverPoolMt( btConstraintSolver** solvers, int numSolvers ) -{ - init( solvers, numSolvers ); -} - -btConstraintSolverPoolMt::~btConstraintSolverPoolMt() -{ - // delete all solvers - for ( int i = 0; i < m_solvers.size(); ++i ) - { - ThreadSolver& solver = m_solvers[ i ]; - delete solver.solver; - solver.solver = NULL; - } -} - -///solve a group of constraints -btScalar btConstraintSolverPoolMt::solveGroup( btCollisionObject** bodies, - int numBodies, - btPersistentManifold** manifolds, - int numManifolds, - btTypedConstraint** constraints, - int numConstraints, - const btContactSolverInfo& info, - btIDebugDraw* debugDrawer, - btDispatcher* dispatcher -) -{ - ThreadSolver* ts = getAndLockThreadSolver(); - ts->solver->solveGroup( bodies, numBodies, manifolds, numManifolds, constraints, numConstraints, info, debugDrawer, dispatcher ); - ts->mutex.unlock(); - return 0.0f; -} - -void btConstraintSolverPoolMt::reset() -{ - for ( int i = 0; i < m_solvers.size(); ++i ) - { - ThreadSolver& solver = m_solvers[ i ]; - solver.mutex.lock(); - solver.solver->reset(); - solver.mutex.unlock(); - } -} - - -/// -/// btDiscreteDynamicsWorldMt -/// - -btDiscreteDynamicsWorldMt::btDiscreteDynamicsWorldMt(btDispatcher* dispatcher, btBroadphaseInterface* pairCache, btConstraintSolverPoolMt* constraintSolver, btCollisionConfiguration* collisionConfiguration) -: btDiscreteDynamicsWorld(dispatcher,pairCache,constraintSolver,collisionConfiguration) -{ - if (m_ownsIslandManager) - { - m_islandManager->~btSimulationIslandManager(); - btAlignedFree( m_islandManager); - } - { - void* mem = btAlignedAlloc(sizeof(InplaceSolverIslandCallbackMt),16); - m_solverIslandCallbackMt = new (mem) InplaceSolverIslandCallbackMt (m_constraintSolver, 0, dispatcher); - } - { - void* mem = btAlignedAlloc(sizeof(btSimulationIslandManagerMt),16); - btSimulationIslandManagerMt* im = new (mem) btSimulationIslandManagerMt(); - im->setMinimumSolverBatchSize( m_solverInfo.m_minimumSolverBatchSize ); - m_islandManager = im; - } -} - - -btDiscreteDynamicsWorldMt::~btDiscreteDynamicsWorldMt() -{ - if (m_solverIslandCallbackMt) - { - m_solverIslandCallbackMt->~InplaceSolverIslandCallbackMt(); - btAlignedFree(m_solverIslandCallbackMt); - } - if (m_ownsConstraintSolver) - { - m_constraintSolver->~btConstraintSolver(); - btAlignedFree(m_constraintSolver); - } -} - - -void btDiscreteDynamicsWorldMt::solveConstraints(btContactSolverInfo& solverInfo) -{ - BT_PROFILE("solveConstraints"); - - m_solverIslandCallbackMt->setup(&solverInfo, getDebugDrawer()); - m_constraintSolver->prepareSolve(getCollisionWorld()->getNumCollisionObjects(), getCollisionWorld()->getDispatcher()->getNumManifolds()); - - /// solve all the constraints for this island - btSimulationIslandManagerMt* im = static_cast<btSimulationIslandManagerMt*>(m_islandManager); - im->buildAndProcessIslands( getCollisionWorld()->getDispatcher(), getCollisionWorld(), m_constraints, m_solverIslandCallbackMt ); - - m_constraintSolver->allSolved(solverInfo, m_debugDrawer); -} - - -struct UpdaterUnconstrainedMotion : public btIParallelForBody -{ - btScalar timeStep; - btRigidBody** rigidBodies; - - void forLoop( int iBegin, int iEnd ) const BT_OVERRIDE - { - for ( int i = iBegin; i < iEnd; ++i ) - { - btRigidBody* body = rigidBodies[ i ]; - if ( !body->isStaticOrKinematicObject() ) - { - //don't integrate/update velocities here, it happens in the constraint solver - body->applyDamping( timeStep ); - body->predictIntegratedTransform( timeStep, body->getInterpolationWorldTransform() ); - } - } - } -}; - - -void btDiscreteDynamicsWorldMt::predictUnconstraintMotion( btScalar timeStep ) -{ - BT_PROFILE( "predictUnconstraintMotion" ); - if ( m_nonStaticRigidBodies.size() > 0 ) - { - UpdaterUnconstrainedMotion update; - update.timeStep = timeStep; - update.rigidBodies = &m_nonStaticRigidBodies[ 0 ]; - int grainSize = 50; // num of iterations per task for task scheduler - btParallelFor( 0, m_nonStaticRigidBodies.size(), grainSize, update ); - } -} - - -void btDiscreteDynamicsWorldMt::createPredictiveContacts( btScalar timeStep ) -{ - BT_PROFILE( "createPredictiveContacts" ); - releasePredictiveContacts(); - if ( m_nonStaticRigidBodies.size() > 0 ) - { - UpdaterCreatePredictiveContacts update; - update.world = this; - update.timeStep = timeStep; - update.rigidBodies = &m_nonStaticRigidBodies[ 0 ]; - int grainSize = 50; // num of iterations per task for task scheduler - btParallelFor( 0, m_nonStaticRigidBodies.size(), grainSize, update ); - } -} - - -void btDiscreteDynamicsWorldMt::integrateTransforms( btScalar timeStep ) -{ - BT_PROFILE( "integrateTransforms" ); - if ( m_nonStaticRigidBodies.size() > 0 ) - { - UpdaterIntegrateTransforms update; - update.world = this; - update.timeStep = timeStep; - update.rigidBodies = &m_nonStaticRigidBodies[ 0 ]; - int grainSize = 50; // num of iterations per task for task scheduler - btParallelFor( 0, m_nonStaticRigidBodies.size(), grainSize, update ); - } -} - diff --git a/thirdparty/bullet/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorldMt.h b/thirdparty/bullet/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorldMt.h deleted file mode 100644 index 2f144cdda4..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorldMt.h +++ /dev/null @@ -1,134 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2009 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - - -#ifndef BT_DISCRETE_DYNAMICS_WORLD_MT_H -#define BT_DISCRETE_DYNAMICS_WORLD_MT_H - -#include "btDiscreteDynamicsWorld.h" -#include "btSimulationIslandManagerMt.h" -#include "BulletDynamics/ConstraintSolver/btConstraintSolver.h" - -struct InplaceSolverIslandCallbackMt; - -/// -/// btConstraintSolverPoolMt - masquerades as a constraint solver, but really it is a threadsafe pool of them. -/// -/// Each solver in the pool is protected by a mutex. When solveGroup is called from a thread, -/// the pool looks for a solver that isn't being used by another thread, locks it, and dispatches the -/// call to the solver. -/// So long as there are at least as many solvers as there are hardware threads, it should never need to -/// spin wait. -/// -class btConstraintSolverPoolMt : public btConstraintSolver -{ -public: - // create the solvers for me - explicit btConstraintSolverPoolMt( int numSolvers ); - - // pass in fully constructed solvers (destructor will delete them) - btConstraintSolverPoolMt( btConstraintSolver** solvers, int numSolvers ); - - virtual ~btConstraintSolverPoolMt(); - - ///solve a group of constraints - virtual btScalar solveGroup( btCollisionObject** bodies, - int numBodies, - btPersistentManifold** manifolds, - int numManifolds, - btTypedConstraint** constraints, - int numConstraints, - const btContactSolverInfo& info, - btIDebugDraw* debugDrawer, - btDispatcher* dispatcher - ) BT_OVERRIDE; - - virtual void reset() BT_OVERRIDE; - virtual btConstraintSolverType getSolverType() const BT_OVERRIDE { return m_solverType; } - -private: - const static size_t kCacheLineSize = 128; - struct ThreadSolver - { - btConstraintSolver* solver; - btSpinMutex mutex; - char _cachelinePadding[ kCacheLineSize - sizeof( btSpinMutex ) - sizeof( void* ) ]; // keep mutexes from sharing a cache line - }; - btAlignedObjectArray<ThreadSolver> m_solvers; - btConstraintSolverType m_solverType; - - ThreadSolver* getAndLockThreadSolver(); - void init( btConstraintSolver** solvers, int numSolvers ); -}; - - - -/// -/// btDiscreteDynamicsWorldMt -- a version of DiscreteDynamicsWorld with some minor changes to support -/// solving simulation islands on multiple threads. -/// -/// Should function exactly like btDiscreteDynamicsWorld. -/// Also 3 methods that iterate over all of the rigidbodies can run in parallel: -/// - predictUnconstraintMotion -/// - integrateTransforms -/// - createPredictiveContacts -/// -ATTRIBUTE_ALIGNED16(class) btDiscreteDynamicsWorldMt : public btDiscreteDynamicsWorld -{ -protected: - InplaceSolverIslandCallbackMt* m_solverIslandCallbackMt; - - virtual void solveConstraints(btContactSolverInfo& solverInfo) BT_OVERRIDE; - - virtual void predictUnconstraintMotion( btScalar timeStep ) BT_OVERRIDE; - - struct UpdaterCreatePredictiveContacts : public btIParallelForBody - { - btScalar timeStep; - btRigidBody** rigidBodies; - btDiscreteDynamicsWorldMt* world; - - void forLoop( int iBegin, int iEnd ) const BT_OVERRIDE - { - world->createPredictiveContactsInternal( &rigidBodies[ iBegin ], iEnd - iBegin, timeStep ); - } - }; - virtual void createPredictiveContacts( btScalar timeStep ) BT_OVERRIDE; - - struct UpdaterIntegrateTransforms : public btIParallelForBody - { - btScalar timeStep; - btRigidBody** rigidBodies; - btDiscreteDynamicsWorldMt* world; - - void forLoop( int iBegin, int iEnd ) const BT_OVERRIDE - { - world->integrateTransformsInternal( &rigidBodies[ iBegin ], iEnd - iBegin, timeStep ); - } - }; - virtual void integrateTransforms( btScalar timeStep ) BT_OVERRIDE; - -public: - BT_DECLARE_ALIGNED_ALLOCATOR(); - - btDiscreteDynamicsWorldMt(btDispatcher* dispatcher, - btBroadphaseInterface* pairCache, - btConstraintSolverPoolMt* constraintSolver, // Note this should be a solver-pool for multi-threading - btCollisionConfiguration* collisionConfiguration - ); - virtual ~btDiscreteDynamicsWorldMt(); -}; - -#endif //BT_DISCRETE_DYNAMICS_WORLD_H diff --git a/thirdparty/bullet/src/BulletDynamics/Dynamics/btDynamicsWorld.h b/thirdparty/bullet/src/BulletDynamics/Dynamics/btDynamicsWorld.h deleted file mode 100644 index 42d8fc0de3..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Dynamics/btDynamicsWorld.h +++ /dev/null @@ -1,173 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_DYNAMICS_WORLD_H -#define BT_DYNAMICS_WORLD_H - -#include "BulletCollision/CollisionDispatch/btCollisionWorld.h" -#include "BulletDynamics/ConstraintSolver/btContactSolverInfo.h" - -class btTypedConstraint; -class btActionInterface; -class btConstraintSolver; -class btDynamicsWorld; - - -/// Type for the callback for each tick -typedef void (*btInternalTickCallback)(btDynamicsWorld *world, btScalar timeStep); - -enum btDynamicsWorldType -{ - BT_SIMPLE_DYNAMICS_WORLD=1, - BT_DISCRETE_DYNAMICS_WORLD=2, - BT_CONTINUOUS_DYNAMICS_WORLD=3, - BT_SOFT_RIGID_DYNAMICS_WORLD=4, - BT_GPU_DYNAMICS_WORLD=5, - BT_SOFT_MULTIBODY_DYNAMICS_WORLD=6 -}; - -///The btDynamicsWorld is the interface class for several dynamics implementation, basic, discrete, parallel, and continuous etc. -class btDynamicsWorld : public btCollisionWorld -{ - -protected: - btInternalTickCallback m_internalTickCallback; - btInternalTickCallback m_internalPreTickCallback; - void* m_worldUserInfo; - - btContactSolverInfo m_solverInfo; - -public: - - - btDynamicsWorld(btDispatcher* dispatcher,btBroadphaseInterface* broadphase,btCollisionConfiguration* collisionConfiguration) - :btCollisionWorld(dispatcher,broadphase,collisionConfiguration), m_internalTickCallback(0),m_internalPreTickCallback(0), m_worldUserInfo(0) - { - } - - virtual ~btDynamicsWorld() - { - } - - ///stepSimulation proceeds the simulation over 'timeStep', units in preferably in seconds. - ///By default, Bullet will subdivide the timestep in constant substeps of each 'fixedTimeStep'. - ///in order to keep the simulation real-time, the maximum number of substeps can be clamped to 'maxSubSteps'. - ///You can disable subdividing the timestep/substepping by passing maxSubSteps=0 as second argument to stepSimulation, but in that case you have to keep the timeStep constant. - virtual int stepSimulation( btScalar timeStep,int maxSubSteps=1, btScalar fixedTimeStep=btScalar(1.)/btScalar(60.))=0; - - virtual void debugDrawWorld() = 0; - - virtual void addConstraint(btTypedConstraint* constraint, bool disableCollisionsBetweenLinkedBodies=false) - { - (void)constraint; (void)disableCollisionsBetweenLinkedBodies; - } - - virtual void removeConstraint(btTypedConstraint* constraint) {(void)constraint;} - - virtual void addAction(btActionInterface* action) = 0; - - virtual void removeAction(btActionInterface* action) = 0; - - //once a rigidbody is added to the dynamics world, it will get this gravity assigned - //existing rigidbodies in the world get gravity assigned too, during this method - virtual void setGravity(const btVector3& gravity) = 0; - virtual btVector3 getGravity () const = 0; - - virtual void synchronizeMotionStates() = 0; - - virtual void addRigidBody(btRigidBody* body) = 0; - - virtual void addRigidBody(btRigidBody* body, int group, int mask) = 0; - - virtual void removeRigidBody(btRigidBody* body) = 0; - - virtual void setConstraintSolver(btConstraintSolver* solver) = 0; - - virtual btConstraintSolver* getConstraintSolver() = 0; - - virtual int getNumConstraints() const { return 0; } - - virtual btTypedConstraint* getConstraint(int index) { (void)index; return 0; } - - virtual const btTypedConstraint* getConstraint(int index) const { (void)index; return 0; } - - virtual btDynamicsWorldType getWorldType() const=0; - - virtual void clearForces() = 0; - - /// Set the callback for when an internal tick (simulation substep) happens, optional user info - void setInternalTickCallback(btInternalTickCallback cb, void* worldUserInfo=0,bool isPreTick=false) - { - if (isPreTick) - { - m_internalPreTickCallback = cb; - } else - { - m_internalTickCallback = cb; - } - m_worldUserInfo = worldUserInfo; - } - - void setWorldUserInfo(void* worldUserInfo) - { - m_worldUserInfo = worldUserInfo; - } - - void* getWorldUserInfo() const - { - return m_worldUserInfo; - } - - btContactSolverInfo& getSolverInfo() - { - return m_solverInfo; - } - - const btContactSolverInfo& getSolverInfo() const - { - return m_solverInfo; - } - - - ///obsolete, use addAction instead. - virtual void addVehicle(btActionInterface* vehicle) {(void)vehicle;} - ///obsolete, use removeAction instead - virtual void removeVehicle(btActionInterface* vehicle) {(void)vehicle;} - ///obsolete, use addAction instead. - virtual void addCharacter(btActionInterface* character) {(void)character;} - ///obsolete, use removeAction instead - virtual void removeCharacter(btActionInterface* character) {(void)character;} - - -}; - -///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64 -struct btDynamicsWorldDoubleData -{ - btContactSolverInfoDoubleData m_solverInfo; - btVector3DoubleData m_gravity; -}; - -///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64 -struct btDynamicsWorldFloatData -{ - btContactSolverInfoFloatData m_solverInfo; - btVector3FloatData m_gravity; -}; - - -#endif //BT_DYNAMICS_WORLD_H - - diff --git a/thirdparty/bullet/src/BulletDynamics/Dynamics/btRigidBody.cpp b/thirdparty/bullet/src/BulletDynamics/Dynamics/btRigidBody.cpp deleted file mode 100644 index ca0714fcfa..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Dynamics/btRigidBody.cpp +++ /dev/null @@ -1,527 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#include "btRigidBody.h" -#include "BulletCollision/CollisionShapes/btConvexShape.h" -#include "LinearMath/btMinMax.h" -#include "LinearMath/btTransformUtil.h" -#include "LinearMath/btMotionState.h" -#include "BulletDynamics/ConstraintSolver/btTypedConstraint.h" -#include "LinearMath/btSerializer.h" - -//'temporarily' global variables -btScalar gDeactivationTime = btScalar(2.); -bool gDisableDeactivation = false; -static int uniqueId = 0; - - -btRigidBody::btRigidBody(const btRigidBody::btRigidBodyConstructionInfo& constructionInfo) -{ - setupRigidBody(constructionInfo); -} - -btRigidBody::btRigidBody(btScalar mass, btMotionState *motionState, btCollisionShape *collisionShape, const btVector3 &localInertia) -{ - btRigidBodyConstructionInfo cinfo(mass,motionState,collisionShape,localInertia); - setupRigidBody(cinfo); -} - -void btRigidBody::setupRigidBody(const btRigidBody::btRigidBodyConstructionInfo& constructionInfo) -{ - - m_internalType=CO_RIGID_BODY; - - m_linearVelocity.setValue(btScalar(0.0), btScalar(0.0), btScalar(0.0)); - m_angularVelocity.setValue(btScalar(0.),btScalar(0.),btScalar(0.)); - m_angularFactor.setValue(1,1,1); - m_linearFactor.setValue(1,1,1); - m_gravity.setValue(btScalar(0.0), btScalar(0.0), btScalar(0.0)); - m_gravity_acceleration.setValue(btScalar(0.0), btScalar(0.0), btScalar(0.0)); - m_totalForce.setValue(btScalar(0.0), btScalar(0.0), btScalar(0.0)); - m_totalTorque.setValue(btScalar(0.0), btScalar(0.0), btScalar(0.0)), - setDamping(constructionInfo.m_linearDamping, constructionInfo.m_angularDamping); - - m_linearSleepingThreshold = constructionInfo.m_linearSleepingThreshold; - m_angularSleepingThreshold = constructionInfo.m_angularSleepingThreshold; - m_optionalMotionState = constructionInfo.m_motionState; - m_contactSolverType = 0; - m_frictionSolverType = 0; - m_additionalDamping = constructionInfo.m_additionalDamping; - m_additionalDampingFactor = constructionInfo.m_additionalDampingFactor; - m_additionalLinearDampingThresholdSqr = constructionInfo.m_additionalLinearDampingThresholdSqr; - m_additionalAngularDampingThresholdSqr = constructionInfo.m_additionalAngularDampingThresholdSqr; - m_additionalAngularDampingFactor = constructionInfo.m_additionalAngularDampingFactor; - - if (m_optionalMotionState) - { - m_optionalMotionState->getWorldTransform(m_worldTransform); - } else - { - m_worldTransform = constructionInfo.m_startWorldTransform; - } - - m_interpolationWorldTransform = m_worldTransform; - m_interpolationLinearVelocity.setValue(0,0,0); - m_interpolationAngularVelocity.setValue(0,0,0); - - //moved to btCollisionObject - m_friction = constructionInfo.m_friction; - m_rollingFriction = constructionInfo.m_rollingFriction; - m_spinningFriction = constructionInfo.m_spinningFriction; - - m_restitution = constructionInfo.m_restitution; - - setCollisionShape( constructionInfo.m_collisionShape ); - m_debugBodyId = uniqueId++; - - setMassProps(constructionInfo.m_mass, constructionInfo.m_localInertia); - updateInertiaTensor(); - - m_rigidbodyFlags = BT_ENABLE_GYROSCOPIC_FORCE_IMPLICIT_BODY; - - - m_deltaLinearVelocity.setZero(); - m_deltaAngularVelocity.setZero(); - m_invMass = m_inverseMass*m_linearFactor; - m_pushVelocity.setZero(); - m_turnVelocity.setZero(); - - - -} - - -void btRigidBody::predictIntegratedTransform(btScalar timeStep,btTransform& predictedTransform) -{ - btTransformUtil::integrateTransform(m_worldTransform,m_linearVelocity,m_angularVelocity,timeStep,predictedTransform); -} - -void btRigidBody::saveKinematicState(btScalar timeStep) -{ - //todo: clamp to some (user definable) safe minimum timestep, to limit maximum angular/linear velocities - if (timeStep != btScalar(0.)) - { - //if we use motionstate to synchronize world transforms, get the new kinematic/animated world transform - if (getMotionState()) - getMotionState()->getWorldTransform(m_worldTransform); - btVector3 linVel,angVel; - - btTransformUtil::calculateVelocity(m_interpolationWorldTransform,m_worldTransform,timeStep,m_linearVelocity,m_angularVelocity); - m_interpolationLinearVelocity = m_linearVelocity; - m_interpolationAngularVelocity = m_angularVelocity; - m_interpolationWorldTransform = m_worldTransform; - //printf("angular = %f %f %f\n",m_angularVelocity.getX(),m_angularVelocity.getY(),m_angularVelocity.getZ()); - } -} - -void btRigidBody::getAabb(btVector3& aabbMin,btVector3& aabbMax) const -{ - getCollisionShape()->getAabb(m_worldTransform,aabbMin,aabbMax); -} - - - - -void btRigidBody::setGravity(const btVector3& acceleration) -{ - if (m_inverseMass != btScalar(0.0)) - { - m_gravity = acceleration * (btScalar(1.0) / m_inverseMass); - } - m_gravity_acceleration = acceleration; -} - - - - - - -void btRigidBody::setDamping(btScalar lin_damping, btScalar ang_damping) -{ - m_linearDamping = btClamped(lin_damping, (btScalar)btScalar(0.0), (btScalar)btScalar(1.0)); - m_angularDamping = btClamped(ang_damping, (btScalar)btScalar(0.0), (btScalar)btScalar(1.0)); -} - - - - -///applyDamping damps the velocity, using the given m_linearDamping and m_angularDamping -void btRigidBody::applyDamping(btScalar timeStep) -{ - //On new damping: see discussion/issue report here: http://code.google.com/p/bullet/issues/detail?id=74 - //todo: do some performance comparisons (but other parts of the engine are probably bottleneck anyway - -//#define USE_OLD_DAMPING_METHOD 1 -#ifdef USE_OLD_DAMPING_METHOD - m_linearVelocity *= GEN_clamped((btScalar(1.) - timeStep * m_linearDamping), (btScalar)btScalar(0.0), (btScalar)btScalar(1.0)); - m_angularVelocity *= GEN_clamped((btScalar(1.) - timeStep * m_angularDamping), (btScalar)btScalar(0.0), (btScalar)btScalar(1.0)); -#else - m_linearVelocity *= btPow(btScalar(1)-m_linearDamping, timeStep); - m_angularVelocity *= btPow(btScalar(1)-m_angularDamping, timeStep); -#endif - - if (m_additionalDamping) - { - //Additional damping can help avoiding lowpass jitter motion, help stability for ragdolls etc. - //Such damping is undesirable, so once the overall simulation quality of the rigid body dynamics system has improved, this should become obsolete - if ((m_angularVelocity.length2() < m_additionalAngularDampingThresholdSqr) && - (m_linearVelocity.length2() < m_additionalLinearDampingThresholdSqr)) - { - m_angularVelocity *= m_additionalDampingFactor; - m_linearVelocity *= m_additionalDampingFactor; - } - - - btScalar speed = m_linearVelocity.length(); - if (speed < m_linearDamping) - { - btScalar dampVel = btScalar(0.005); - if (speed > dampVel) - { - btVector3 dir = m_linearVelocity.normalized(); - m_linearVelocity -= dir * dampVel; - } else - { - m_linearVelocity.setValue(btScalar(0.),btScalar(0.),btScalar(0.)); - } - } - - btScalar angSpeed = m_angularVelocity.length(); - if (angSpeed < m_angularDamping) - { - btScalar angDampVel = btScalar(0.005); - if (angSpeed > angDampVel) - { - btVector3 dir = m_angularVelocity.normalized(); - m_angularVelocity -= dir * angDampVel; - } else - { - m_angularVelocity.setValue(btScalar(0.),btScalar(0.),btScalar(0.)); - } - } - } -} - - -void btRigidBody::applyGravity() -{ - if (isStaticOrKinematicObject()) - return; - - applyCentralForce(m_gravity); - -} - -void btRigidBody::proceedToTransform(const btTransform& newTrans) -{ - setCenterOfMassTransform( newTrans ); -} - - -void btRigidBody::setMassProps(btScalar mass, const btVector3& inertia) -{ - if (mass == btScalar(0.)) - { - m_collisionFlags |= btCollisionObject::CF_STATIC_OBJECT; - m_inverseMass = btScalar(0.); - } else - { - m_collisionFlags &= (~btCollisionObject::CF_STATIC_OBJECT); - m_inverseMass = btScalar(1.0) / mass; - } - - //Fg = m * a - m_gravity = mass * m_gravity_acceleration; - - m_invInertiaLocal.setValue(inertia.x() != btScalar(0.0) ? btScalar(1.0) / inertia.x(): btScalar(0.0), - inertia.y() != btScalar(0.0) ? btScalar(1.0) / inertia.y(): btScalar(0.0), - inertia.z() != btScalar(0.0) ? btScalar(1.0) / inertia.z(): btScalar(0.0)); - - m_invMass = m_linearFactor*m_inverseMass; -} - - -void btRigidBody::updateInertiaTensor() -{ - m_invInertiaTensorWorld = m_worldTransform.getBasis().scaled(m_invInertiaLocal) * m_worldTransform.getBasis().transpose(); -} - - - -btVector3 btRigidBody::getLocalInertia() const -{ - - btVector3 inertiaLocal; - const btVector3 inertia = m_invInertiaLocal; - inertiaLocal.setValue(inertia.x() != btScalar(0.0) ? btScalar(1.0) / inertia.x() : btScalar(0.0), - inertia.y() != btScalar(0.0) ? btScalar(1.0) / inertia.y() : btScalar(0.0), - inertia.z() != btScalar(0.0) ? btScalar(1.0) / inertia.z() : btScalar(0.0)); - return inertiaLocal; -} - -inline btVector3 evalEulerEqn(const btVector3& w1, const btVector3& w0, const btVector3& T, const btScalar dt, - const btMatrix3x3 &I) -{ - const btVector3 w2 = I*w1 + w1.cross(I*w1)*dt - (T*dt + I*w0); - return w2; -} - -inline btMatrix3x3 evalEulerEqnDeriv(const btVector3& w1, const btVector3& w0, const btScalar dt, - const btMatrix3x3 &I) -{ - - btMatrix3x3 w1x, Iw1x; - const btVector3 Iwi = (I*w1); - w1.getSkewSymmetricMatrix(&w1x[0], &w1x[1], &w1x[2]); - Iwi.getSkewSymmetricMatrix(&Iw1x[0], &Iw1x[1], &Iw1x[2]); - - const btMatrix3x3 dfw1 = I + (w1x*I - Iw1x)*dt; - return dfw1; -} - -btVector3 btRigidBody::computeGyroscopicForceExplicit(btScalar maxGyroscopicForce) const -{ - btVector3 inertiaLocal = getLocalInertia(); - btMatrix3x3 inertiaTensorWorld = getWorldTransform().getBasis().scaled(inertiaLocal) * getWorldTransform().getBasis().transpose(); - btVector3 tmp = inertiaTensorWorld*getAngularVelocity(); - btVector3 gf = getAngularVelocity().cross(tmp); - btScalar l2 = gf.length2(); - if (l2>maxGyroscopicForce*maxGyroscopicForce) - { - gf *= btScalar(1.)/btSqrt(l2)*maxGyroscopicForce; - } - return gf; -} - - -btVector3 btRigidBody::computeGyroscopicImpulseImplicit_Body(btScalar step) const -{ - btVector3 idl = getLocalInertia(); - btVector3 omega1 = getAngularVelocity(); - btQuaternion q = getWorldTransform().getRotation(); - - // Convert to body coordinates - btVector3 omegab = quatRotate(q.inverse(), omega1); - btMatrix3x3 Ib; - Ib.setValue(idl.x(),0,0, - 0,idl.y(),0, - 0,0,idl.z()); - - btVector3 ibo = Ib*omegab; - - // Residual vector - btVector3 f = step * omegab.cross(ibo); - - btMatrix3x3 skew0; - omegab.getSkewSymmetricMatrix(&skew0[0], &skew0[1], &skew0[2]); - btVector3 om = Ib*omegab; - btMatrix3x3 skew1; - om.getSkewSymmetricMatrix(&skew1[0],&skew1[1],&skew1[2]); - - // Jacobian - btMatrix3x3 J = Ib + (skew0*Ib - skew1)*step; - -// btMatrix3x3 Jinv = J.inverse(); -// btVector3 omega_div = Jinv*f; - btVector3 omega_div = J.solve33(f); - - // Single Newton-Raphson update - omegab = omegab - omega_div;//Solve33(J, f); - // Back to world coordinates - btVector3 omega2 = quatRotate(q,omegab); - btVector3 gf = omega2-omega1; - return gf; -} - - - -btVector3 btRigidBody::computeGyroscopicImpulseImplicit_World(btScalar step) const -{ - // use full newton-euler equations. common practice to drop the wxIw term. want it for better tumbling behavior. - // calculate using implicit euler step so it's stable. - - const btVector3 inertiaLocal = getLocalInertia(); - const btVector3 w0 = getAngularVelocity(); - - btMatrix3x3 I; - - I = m_worldTransform.getBasis().scaled(inertiaLocal) * - m_worldTransform.getBasis().transpose(); - - // use newtons method to find implicit solution for new angular velocity (w') - // f(w') = -(T*step + Iw) + Iw' + w' + w'xIw'*step = 0 - // df/dw' = I + 1xIw'*step + w'xI*step - - btVector3 w1 = w0; - - // one step of newton's method - { - const btVector3 fw = evalEulerEqn(w1, w0, btVector3(0, 0, 0), step, I); - const btMatrix3x3 dfw = evalEulerEqnDeriv(w1, w0, step, I); - - btVector3 dw; - dw = dfw.solve33(fw); - //const btMatrix3x3 dfw_inv = dfw.inverse(); - //dw = dfw_inv*fw; - - w1 -= dw; - } - - btVector3 gf = (w1 - w0); - return gf; -} - - -void btRigidBody::integrateVelocities(btScalar step) -{ - if (isStaticOrKinematicObject()) - return; - - m_linearVelocity += m_totalForce * (m_inverseMass * step); - m_angularVelocity += m_invInertiaTensorWorld * m_totalTorque * step; - -#define MAX_ANGVEL SIMD_HALF_PI - /// clamp angular velocity. collision calculations will fail on higher angular velocities - btScalar angvel = m_angularVelocity.length(); - if (angvel*step > MAX_ANGVEL) - { - m_angularVelocity *= (MAX_ANGVEL/step) /angvel; - } - -} - -btQuaternion btRigidBody::getOrientation() const -{ - btQuaternion orn; - m_worldTransform.getBasis().getRotation(orn); - return orn; -} - - -void btRigidBody::setCenterOfMassTransform(const btTransform& xform) -{ - - if (isKinematicObject()) - { - m_interpolationWorldTransform = m_worldTransform; - } else - { - m_interpolationWorldTransform = xform; - } - m_interpolationLinearVelocity = getLinearVelocity(); - m_interpolationAngularVelocity = getAngularVelocity(); - m_worldTransform = xform; - updateInertiaTensor(); -} - - - - - -void btRigidBody::addConstraintRef(btTypedConstraint* c) -{ - ///disable collision with the 'other' body - - int index = m_constraintRefs.findLinearSearch(c); - //don't add constraints that are already referenced - //btAssert(index == m_constraintRefs.size()); - if (index == m_constraintRefs.size()) - { - m_constraintRefs.push_back(c); - btCollisionObject* colObjA = &c->getRigidBodyA(); - btCollisionObject* colObjB = &c->getRigidBodyB(); - if (colObjA == this) - { - colObjA->setIgnoreCollisionCheck(colObjB, true); - } - else - { - colObjB->setIgnoreCollisionCheck(colObjA, true); - } - } -} - -void btRigidBody::removeConstraintRef(btTypedConstraint* c) -{ - int index = m_constraintRefs.findLinearSearch(c); - //don't remove constraints that are not referenced - if(index < m_constraintRefs.size()) - { - m_constraintRefs.remove(c); - btCollisionObject* colObjA = &c->getRigidBodyA(); - btCollisionObject* colObjB = &c->getRigidBodyB(); - if (colObjA == this) - { - colObjA->setIgnoreCollisionCheck(colObjB, false); - } - else - { - colObjB->setIgnoreCollisionCheck(colObjA, false); - } - } -} - -int btRigidBody::calculateSerializeBufferSize() const -{ - int sz = sizeof(btRigidBodyData); - return sz; -} - - ///fills the dataBuffer and returns the struct name (and 0 on failure) -const char* btRigidBody::serialize(void* dataBuffer, class btSerializer* serializer) const -{ - btRigidBodyData* rbd = (btRigidBodyData*) dataBuffer; - - btCollisionObject::serialize(&rbd->m_collisionObjectData, serializer); - - m_invInertiaTensorWorld.serialize(rbd->m_invInertiaTensorWorld); - m_linearVelocity.serialize(rbd->m_linearVelocity); - m_angularVelocity.serialize(rbd->m_angularVelocity); - rbd->m_inverseMass = m_inverseMass; - m_angularFactor.serialize(rbd->m_angularFactor); - m_linearFactor.serialize(rbd->m_linearFactor); - m_gravity.serialize(rbd->m_gravity); - m_gravity_acceleration.serialize(rbd->m_gravity_acceleration); - m_invInertiaLocal.serialize(rbd->m_invInertiaLocal); - m_totalForce.serialize(rbd->m_totalForce); - m_totalTorque.serialize(rbd->m_totalTorque); - rbd->m_linearDamping = m_linearDamping; - rbd->m_angularDamping = m_angularDamping; - rbd->m_additionalDamping = m_additionalDamping; - rbd->m_additionalDampingFactor = m_additionalDampingFactor; - rbd->m_additionalLinearDampingThresholdSqr = m_additionalLinearDampingThresholdSqr; - rbd->m_additionalAngularDampingThresholdSqr = m_additionalAngularDampingThresholdSqr; - rbd->m_additionalAngularDampingFactor = m_additionalAngularDampingFactor; - rbd->m_linearSleepingThreshold=m_linearSleepingThreshold; - rbd->m_angularSleepingThreshold = m_angularSleepingThreshold; - - // Fill padding with zeros to appease msan. -#ifdef BT_USE_DOUBLE_PRECISION - memset(rbd->m_padding, 0, sizeof(rbd->m_padding)); -#endif - - return btRigidBodyDataName; -} - - - -void btRigidBody::serializeSingleObject(class btSerializer* serializer) const -{ - btChunk* chunk = serializer->allocate(calculateSerializeBufferSize(),1); - const char* structType = serialize(chunk->m_oldPtr, serializer); - serializer->finalizeChunk(chunk,structType,BT_RIGIDBODY_CODE,(void*)this); -} - - diff --git a/thirdparty/bullet/src/BulletDynamics/Dynamics/btRigidBody.h b/thirdparty/bullet/src/BulletDynamics/Dynamics/btRigidBody.h deleted file mode 100644 index 372245031b..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Dynamics/btRigidBody.h +++ /dev/null @@ -1,619 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_RIGIDBODY_H -#define BT_RIGIDBODY_H - -#include "LinearMath/btAlignedObjectArray.h" -#include "LinearMath/btTransform.h" -#include "BulletCollision/BroadphaseCollision/btBroadphaseProxy.h" -#include "BulletCollision/CollisionDispatch/btCollisionObject.h" - -class btCollisionShape; -class btMotionState; -class btTypedConstraint; - - -extern btScalar gDeactivationTime; -extern bool gDisableDeactivation; - -#ifdef BT_USE_DOUBLE_PRECISION -#define btRigidBodyData btRigidBodyDoubleData -#define btRigidBodyDataName "btRigidBodyDoubleData" -#else -#define btRigidBodyData btRigidBodyFloatData -#define btRigidBodyDataName "btRigidBodyFloatData" -#endif //BT_USE_DOUBLE_PRECISION - - -enum btRigidBodyFlags -{ - BT_DISABLE_WORLD_GRAVITY = 1, - ///BT_ENABLE_GYROPSCOPIC_FORCE flags is enabled by default in Bullet 2.83 and onwards. - ///and it BT_ENABLE_GYROPSCOPIC_FORCE becomes equivalent to BT_ENABLE_GYROSCOPIC_FORCE_IMPLICIT_BODY - ///See Demos/GyroscopicDemo and computeGyroscopicImpulseImplicit - BT_ENABLE_GYROSCOPIC_FORCE_EXPLICIT = 2, - BT_ENABLE_GYROSCOPIC_FORCE_IMPLICIT_WORLD=4, - BT_ENABLE_GYROSCOPIC_FORCE_IMPLICIT_BODY=8, - BT_ENABLE_GYROPSCOPIC_FORCE = BT_ENABLE_GYROSCOPIC_FORCE_IMPLICIT_BODY, -}; - - -///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: -///- A) Dynamic rigid bodies, with positive mass. Motion is controlled by rigid body dynamics. -///- B) Fixed objects with zero mass. They are not moving (basically collision objects) -///- C) Kinematic objects, which are objects without mass, but the user can move them. There is on-way interaction, and Bullet calculates a velocity based on the timestep and previous and current world transform. -///Bullet automatically deactivates dynamic rigid bodies, when the velocity is below a threshold for a given time. -///Deactivated (sleeping) rigid bodies don't take any processing time, except a minor broadphase collision detection impact (to allow active objects to activate/wake up sleeping objects) -class btRigidBody : public btCollisionObject -{ - - btMatrix3x3 m_invInertiaTensorWorld; - btVector3 m_linearVelocity; - btVector3 m_angularVelocity; - btScalar m_inverseMass; - btVector3 m_linearFactor; - - btVector3 m_gravity; - btVector3 m_gravity_acceleration; - btVector3 m_invInertiaLocal; - btVector3 m_totalForce; - btVector3 m_totalTorque; - - btScalar m_linearDamping; - btScalar m_angularDamping; - - bool m_additionalDamping; - btScalar m_additionalDampingFactor; - btScalar m_additionalLinearDampingThresholdSqr; - btScalar m_additionalAngularDampingThresholdSqr; - btScalar m_additionalAngularDampingFactor; - - - btScalar m_linearSleepingThreshold; - btScalar m_angularSleepingThreshold; - - //m_optionalMotionState allows to automatic synchronize the world transform for active objects - btMotionState* m_optionalMotionState; - - //keep track of typed constraints referencing this rigid body, to disable collision between linked bodies - btAlignedObjectArray<btTypedConstraint*> m_constraintRefs; - - int m_rigidbodyFlags; - - int m_debugBodyId; - - -protected: - - ATTRIBUTE_ALIGNED16(btVector3 m_deltaLinearVelocity); - btVector3 m_deltaAngularVelocity; - btVector3 m_angularFactor; - btVector3 m_invMass; - btVector3 m_pushVelocity; - btVector3 m_turnVelocity; - - -public: - - - ///The btRigidBodyConstructionInfo structure provides information to create a rigid body. Setting mass to zero creates a fixed (non-dynamic) rigid body. - ///For dynamic objects, you can use the collision shape to approximate the local inertia tensor, otherwise use the zero vector (default argument) - ///You can use the motion state to synchronize the world transform between physics and graphics objects. - ///And if the motion state is provided, the rigid body will initialize its initial world transform from the motion state, - ///m_startWorldTransform is only used when you don't provide a motion state. - struct btRigidBodyConstructionInfo - { - btScalar m_mass; - - ///When a motionState is provided, the rigid body will initialize its world transform from the motion state - ///In this case, m_startWorldTransform is ignored. - btMotionState* m_motionState; - btTransform m_startWorldTransform; - - btCollisionShape* m_collisionShape; - btVector3 m_localInertia; - btScalar m_linearDamping; - btScalar m_angularDamping; - - ///best simulation results when friction is non-zero - btScalar m_friction; - ///the m_rollingFriction prevents rounded shapes, such as spheres, cylinders and capsules from rolling forever. - ///See Bullet/Demos/RollingFrictionDemo for usage - btScalar m_rollingFriction; - btScalar m_spinningFriction;//torsional friction around contact normal - - ///best simulation results using zero restitution. - btScalar m_restitution; - - btScalar m_linearSleepingThreshold; - btScalar m_angularSleepingThreshold; - - //Additional damping can help avoiding lowpass jitter motion, help stability for ragdolls etc. - //Such damping is undesirable, so once the overall simulation quality of the rigid body dynamics system has improved, this should become obsolete - bool m_additionalDamping; - btScalar m_additionalDampingFactor; - btScalar m_additionalLinearDampingThresholdSqr; - btScalar m_additionalAngularDampingThresholdSqr; - btScalar m_additionalAngularDampingFactor; - - btRigidBodyConstructionInfo( btScalar mass, btMotionState* motionState, btCollisionShape* collisionShape, const btVector3& localInertia=btVector3(0,0,0)): - m_mass(mass), - m_motionState(motionState), - m_collisionShape(collisionShape), - m_localInertia(localInertia), - m_linearDamping(btScalar(0.)), - m_angularDamping(btScalar(0.)), - m_friction(btScalar(0.5)), - m_rollingFriction(btScalar(0)), - m_spinningFriction(btScalar(0)), - m_restitution(btScalar(0.)), - m_linearSleepingThreshold(btScalar(0.8)), - m_angularSleepingThreshold(btScalar(1.f)), - m_additionalDamping(false), - m_additionalDampingFactor(btScalar(0.005)), - m_additionalLinearDampingThresholdSqr(btScalar(0.01)), - m_additionalAngularDampingThresholdSqr(btScalar(0.01)), - m_additionalAngularDampingFactor(btScalar(0.01)) - { - m_startWorldTransform.setIdentity(); - } - }; - - ///btRigidBody constructor using construction info - btRigidBody( const btRigidBodyConstructionInfo& constructionInfo); - - ///btRigidBody constructor for backwards compatibility. - ///To specify friction (etc) during rigid body construction, please use the other constructor (using btRigidBodyConstructionInfo) - btRigidBody( btScalar mass, btMotionState* motionState, btCollisionShape* collisionShape, const btVector3& localInertia=btVector3(0,0,0)); - - - virtual ~btRigidBody() - { - //No constraints should point to this rigidbody - //Remove constraints from the dynamics world before you delete the related rigidbodies. - btAssert(m_constraintRefs.size()==0); - } - -protected: - - ///setupRigidBody is only used internally by the constructor - void setupRigidBody(const btRigidBodyConstructionInfo& constructionInfo); - -public: - - void proceedToTransform(const btTransform& newTrans); - - ///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 const btRigidBody* upcast(const btCollisionObject* colObj) - { - if (colObj->getInternalType()&btCollisionObject::CO_RIGID_BODY) - return (const btRigidBody*)colObj; - return 0; - } - static btRigidBody* upcast(btCollisionObject* colObj) - { - if (colObj->getInternalType()&btCollisionObject::CO_RIGID_BODY) - return (btRigidBody*)colObj; - return 0; - } - - /// continuous collision detection needs prediction - void predictIntegratedTransform(btScalar step, btTransform& predictedTransform) ; - - void saveKinematicState(btScalar step); - - void applyGravity(); - - void setGravity(const btVector3& acceleration); - - const btVector3& getGravity() const - { - return m_gravity_acceleration; - } - - void setDamping(btScalar lin_damping, btScalar ang_damping); - - btScalar getLinearDamping() const - { - return m_linearDamping; - } - - btScalar getAngularDamping() const - { - return m_angularDamping; - } - - btScalar getLinearSleepingThreshold() const - { - return m_linearSleepingThreshold; - } - - btScalar getAngularSleepingThreshold() const - { - return m_angularSleepingThreshold; - } - - void applyDamping(btScalar timeStep); - - SIMD_FORCE_INLINE const btCollisionShape* getCollisionShape() const { - return m_collisionShape; - } - - SIMD_FORCE_INLINE btCollisionShape* getCollisionShape() { - return m_collisionShape; - } - - void setMassProps(btScalar mass, const btVector3& inertia); - - const btVector3& getLinearFactor() const - { - return m_linearFactor; - } - void setLinearFactor(const btVector3& linearFactor) - { - m_linearFactor = linearFactor; - m_invMass = m_linearFactor*m_inverseMass; - } - btScalar getInvMass() const { return m_inverseMass; } - const btMatrix3x3& getInvInertiaTensorWorld() const { - return m_invInertiaTensorWorld; - } - - void integrateVelocities(btScalar step); - - void setCenterOfMassTransform(const btTransform& xform); - - void applyCentralForce(const btVector3& force) - { - m_totalForce += force*m_linearFactor; - } - - const btVector3& getTotalForce() const - { - return m_totalForce; - }; - - const btVector3& getTotalTorque() const - { - return m_totalTorque; - }; - - const btVector3& getInvInertiaDiagLocal() const - { - return m_invInertiaLocal; - }; - - void setInvInertiaDiagLocal(const btVector3& diagInvInertia) - { - m_invInertiaLocal = diagInvInertia; - } - - void setSleepingThresholds(btScalar linear,btScalar angular) - { - m_linearSleepingThreshold = linear; - m_angularSleepingThreshold = angular; - } - - void applyTorque(const btVector3& torque) - { - m_totalTorque += torque*m_angularFactor; - } - - void applyForce(const btVector3& force, const btVector3& rel_pos) - { - applyCentralForce(force); - applyTorque(rel_pos.cross(force*m_linearFactor)); - } - - void applyCentralImpulse(const btVector3& impulse) - { - m_linearVelocity += impulse *m_linearFactor * m_inverseMass; - } - - void applyTorqueImpulse(const btVector3& torque) - { - m_angularVelocity += m_invInertiaTensorWorld * torque * m_angularFactor; - } - - void applyImpulse(const btVector3& impulse, const btVector3& rel_pos) - { - if (m_inverseMass != btScalar(0.)) - { - applyCentralImpulse(impulse); - if (m_angularFactor) - { - applyTorqueImpulse(rel_pos.cross(impulse*m_linearFactor)); - } - } - } - - void clearForces() - { - m_totalForce.setValue(btScalar(0.0), btScalar(0.0), btScalar(0.0)); - m_totalTorque.setValue(btScalar(0.0), btScalar(0.0), btScalar(0.0)); - } - - void updateInertiaTensor(); - - const btVector3& getCenterOfMassPosition() const { - return m_worldTransform.getOrigin(); - } - btQuaternion getOrientation() const; - - const btTransform& getCenterOfMassTransform() const { - return m_worldTransform; - } - const btVector3& getLinearVelocity() const { - return m_linearVelocity; - } - const btVector3& getAngularVelocity() const { - return m_angularVelocity; - } - - - inline void setLinearVelocity(const btVector3& lin_vel) - { - m_updateRevision++; - m_linearVelocity = lin_vel; - } - - inline void setAngularVelocity(const btVector3& ang_vel) - { - m_updateRevision++; - m_angularVelocity = ang_vel; - } - - btVector3 getVelocityInLocalPoint(const btVector3& rel_pos) const - { - //we also calculate lin/ang velocity for kinematic objects - return m_linearVelocity + m_angularVelocity.cross(rel_pos); - - //for kinematic objects, we could also use use: - // return (m_worldTransform(rel_pos) - m_interpolationWorldTransform(rel_pos)) / m_kinematicTimeStep; - } - - void translate(const btVector3& v) - { - m_worldTransform.getOrigin() += v; - } - - - void getAabb(btVector3& aabbMin,btVector3& aabbMax) const; - - - - - - SIMD_FORCE_INLINE btScalar computeImpulseDenominator(const btVector3& pos, const btVector3& normal) const - { - btVector3 r0 = pos - getCenterOfMassPosition(); - - btVector3 c0 = (r0).cross(normal); - - btVector3 vec = (c0 * getInvInertiaTensorWorld()).cross(r0); - - return m_inverseMass + normal.dot(vec); - - } - - SIMD_FORCE_INLINE btScalar computeAngularImpulseDenominator(const btVector3& axis) const - { - btVector3 vec = axis * getInvInertiaTensorWorld(); - return axis.dot(vec); - } - - SIMD_FORCE_INLINE void updateDeactivation(btScalar timeStep) - { - if ( (getActivationState() == ISLAND_SLEEPING) || (getActivationState() == DISABLE_DEACTIVATION)) - return; - - if ((getLinearVelocity().length2() < m_linearSleepingThreshold*m_linearSleepingThreshold) && - (getAngularVelocity().length2() < m_angularSleepingThreshold*m_angularSleepingThreshold)) - { - m_deactivationTime += timeStep; - } else - { - m_deactivationTime=btScalar(0.); - setActivationState(0); - } - - } - - SIMD_FORCE_INLINE bool wantsSleeping() - { - - if (getActivationState() == DISABLE_DEACTIVATION) - return false; - - //disable deactivation - if (gDisableDeactivation || (gDeactivationTime == btScalar(0.))) - return false; - - if ( (getActivationState() == ISLAND_SLEEPING) || (getActivationState() == WANTS_DEACTIVATION)) - return true; - - if (m_deactivationTime> gDeactivationTime) - { - return true; - } - return false; - } - - - - const btBroadphaseProxy* getBroadphaseProxy() const - { - return m_broadphaseHandle; - } - btBroadphaseProxy* getBroadphaseProxy() - { - return m_broadphaseHandle; - } - void setNewBroadphaseProxy(btBroadphaseProxy* broadphaseProxy) - { - m_broadphaseHandle = broadphaseProxy; - } - - //btMotionState allows to automatic synchronize the world transform for active objects - btMotionState* getMotionState() - { - return m_optionalMotionState; - } - const btMotionState* getMotionState() const - { - return m_optionalMotionState; - } - void setMotionState(btMotionState* motionState) - { - m_optionalMotionState = motionState; - if (m_optionalMotionState) - motionState->getWorldTransform(m_worldTransform); - } - - //for experimental overriding of friction/contact solver func - int m_contactSolverType; - int m_frictionSolverType; - - void setAngularFactor(const btVector3& angFac) - { - m_updateRevision++; - m_angularFactor = angFac; - } - - void setAngularFactor(btScalar angFac) - { - m_updateRevision++; - m_angularFactor.setValue(angFac,angFac,angFac); - } - const btVector3& getAngularFactor() const - { - return m_angularFactor; - } - - //is this rigidbody added to a btCollisionWorld/btDynamicsWorld/btBroadphase? - bool isInWorld() const - { - return (getBroadphaseProxy() != 0); - } - - void addConstraintRef(btTypedConstraint* c); - void removeConstraintRef(btTypedConstraint* c); - - btTypedConstraint* getConstraintRef(int index) - { - return m_constraintRefs[index]; - } - - int getNumConstraintRefs() const - { - return m_constraintRefs.size(); - } - - void setFlags(int flags) - { - m_rigidbodyFlags = flags; - } - - int getFlags() const - { - return m_rigidbodyFlags; - } - - - - - ///perform implicit force computation in world space - btVector3 computeGyroscopicImpulseImplicit_World(btScalar dt) const; - - ///perform implicit force computation in body space (inertial frame) - btVector3 computeGyroscopicImpulseImplicit_Body(btScalar step) const; - - ///explicit version is best avoided, it gains energy - btVector3 computeGyroscopicForceExplicit(btScalar maxGyroscopicForce) const; - btVector3 getLocalInertia() const; - - /////////////////////////////////////////////// - - virtual int calculateSerializeBufferSize() const; - - ///fills the dataBuffer and returns the struct name (and 0 on failure) - virtual const char* serialize(void* dataBuffer, class btSerializer* serializer) const; - - virtual void serializeSingleObject(class btSerializer* serializer) const; - -}; - -//@todo add m_optionalMotionState and m_constraintRefs to btRigidBodyData -///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64 -struct btRigidBodyFloatData -{ - btCollisionObjectFloatData m_collisionObjectData; - btMatrix3x3FloatData m_invInertiaTensorWorld; - btVector3FloatData m_linearVelocity; - btVector3FloatData m_angularVelocity; - btVector3FloatData m_angularFactor; - btVector3FloatData m_linearFactor; - btVector3FloatData m_gravity; - btVector3FloatData m_gravity_acceleration; - btVector3FloatData m_invInertiaLocal; - btVector3FloatData m_totalForce; - btVector3FloatData m_totalTorque; - float m_inverseMass; - float m_linearDamping; - float m_angularDamping; - float m_additionalDampingFactor; - float m_additionalLinearDampingThresholdSqr; - float m_additionalAngularDampingThresholdSqr; - float m_additionalAngularDampingFactor; - float m_linearSleepingThreshold; - float m_angularSleepingThreshold; - int m_additionalDamping; -}; - -///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64 -struct btRigidBodyDoubleData -{ - btCollisionObjectDoubleData m_collisionObjectData; - btMatrix3x3DoubleData m_invInertiaTensorWorld; - btVector3DoubleData m_linearVelocity; - btVector3DoubleData m_angularVelocity; - btVector3DoubleData m_angularFactor; - btVector3DoubleData m_linearFactor; - btVector3DoubleData m_gravity; - btVector3DoubleData m_gravity_acceleration; - btVector3DoubleData m_invInertiaLocal; - btVector3DoubleData m_totalForce; - btVector3DoubleData m_totalTorque; - double m_inverseMass; - double m_linearDamping; - double m_angularDamping; - double m_additionalDampingFactor; - double m_additionalLinearDampingThresholdSqr; - double m_additionalAngularDampingThresholdSqr; - double m_additionalAngularDampingFactor; - double m_linearSleepingThreshold; - double m_angularSleepingThreshold; - int m_additionalDamping; - char m_padding[4]; -}; - - - -#endif //BT_RIGIDBODY_H - diff --git a/thirdparty/bullet/src/BulletDynamics/Dynamics/btSimpleDynamicsWorld.cpp b/thirdparty/bullet/src/BulletDynamics/Dynamics/btSimpleDynamicsWorld.cpp deleted file mode 100644 index 6f63b87c80..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Dynamics/btSimpleDynamicsWorld.cpp +++ /dev/null @@ -1,280 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#include "btSimpleDynamicsWorld.h" -#include "BulletCollision/CollisionDispatch/btCollisionDispatcher.h" -#include "BulletCollision/BroadphaseCollision/btSimpleBroadphase.h" -#include "BulletCollision/CollisionShapes/btCollisionShape.h" -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include "BulletDynamics/ConstraintSolver/btSequentialImpulseConstraintSolver.h" -#include "BulletDynamics/ConstraintSolver/btContactSolverInfo.h" - - -/* - Make sure this dummy function never changes so that it - can be used by probes that are checking whether the - library is actually installed. -*/ -extern "C" -{ - void btBulletDynamicsProbe (); - void btBulletDynamicsProbe () {} -} - - - - -btSimpleDynamicsWorld::btSimpleDynamicsWorld(btDispatcher* dispatcher,btBroadphaseInterface* pairCache,btConstraintSolver* constraintSolver,btCollisionConfiguration* collisionConfiguration) -:btDynamicsWorld(dispatcher,pairCache,collisionConfiguration), -m_constraintSolver(constraintSolver), -m_ownsConstraintSolver(false), -m_gravity(0,0,-10) -{ - -} - - -btSimpleDynamicsWorld::~btSimpleDynamicsWorld() -{ - if (m_ownsConstraintSolver) - btAlignedFree( m_constraintSolver); -} - -int btSimpleDynamicsWorld::stepSimulation( btScalar timeStep,int maxSubSteps, btScalar fixedTimeStep) -{ - (void)fixedTimeStep; - (void)maxSubSteps; - - - ///apply gravity, predict motion - predictUnconstraintMotion(timeStep); - - btDispatcherInfo& dispatchInfo = getDispatchInfo(); - dispatchInfo.m_timeStep = timeStep; - dispatchInfo.m_stepCount = 0; - dispatchInfo.m_debugDraw = getDebugDrawer(); - - ///perform collision detection - performDiscreteCollisionDetection(); - - ///solve contact constraints - int numManifolds = m_dispatcher1->getNumManifolds(); - if (numManifolds) - { - btPersistentManifold** manifoldPtr = ((btCollisionDispatcher*)m_dispatcher1)->getInternalManifoldPointer(); - - btContactSolverInfo infoGlobal; - infoGlobal.m_timeStep = timeStep; - m_constraintSolver->prepareSolve(0,numManifolds); - m_constraintSolver->solveGroup(&getCollisionObjectArray()[0],getNumCollisionObjects(),manifoldPtr, numManifolds,0,0,infoGlobal,m_debugDrawer, m_dispatcher1); - m_constraintSolver->allSolved(infoGlobal,m_debugDrawer); - } - - ///integrate transforms - integrateTransforms(timeStep); - - updateAabbs(); - - synchronizeMotionStates(); - - clearForces(); - - return 1; - -} - -void btSimpleDynamicsWorld::clearForces() -{ - ///@todo: iterate over awake simulation islands! - for ( int i=0;i<m_collisionObjects.size();i++) - { - btCollisionObject* colObj = m_collisionObjects[i]; - - btRigidBody* body = btRigidBody::upcast(colObj); - if (body) - { - body->clearForces(); - } - } -} - - -void btSimpleDynamicsWorld::setGravity(const btVector3& gravity) -{ - m_gravity = gravity; - for ( int i=0;i<m_collisionObjects.size();i++) - { - btCollisionObject* colObj = m_collisionObjects[i]; - btRigidBody* body = btRigidBody::upcast(colObj); - if (body) - { - body->setGravity(gravity); - } - } -} - -btVector3 btSimpleDynamicsWorld::getGravity () const -{ - return m_gravity; -} - -void btSimpleDynamicsWorld::removeRigidBody(btRigidBody* body) -{ - btCollisionWorld::removeCollisionObject(body); -} - -void btSimpleDynamicsWorld::removeCollisionObject(btCollisionObject* collisionObject) -{ - btRigidBody* body = btRigidBody::upcast(collisionObject); - if (body) - removeRigidBody(body); - else - btCollisionWorld::removeCollisionObject(collisionObject); -} - - -void btSimpleDynamicsWorld::addRigidBody(btRigidBody* body) -{ - body->setGravity(m_gravity); - - if (body->getCollisionShape()) - { - addCollisionObject(body); - } -} - -void btSimpleDynamicsWorld::addRigidBody(btRigidBody* body, int group, int mask) -{ - body->setGravity(m_gravity); - - if (body->getCollisionShape()) - { - addCollisionObject(body,group,mask); - } -} - - -void btSimpleDynamicsWorld::debugDrawWorld() -{ - -} - -void btSimpleDynamicsWorld::addAction(btActionInterface* action) -{ - -} - -void btSimpleDynamicsWorld::removeAction(btActionInterface* action) -{ - -} - - -void btSimpleDynamicsWorld::updateAabbs() -{ - btTransform predictedTrans; - for ( int i=0;i<m_collisionObjects.size();i++) - { - btCollisionObject* colObj = m_collisionObjects[i]; - btRigidBody* body = btRigidBody::upcast(colObj); - if (body) - { - if (body->isActive() && (!body->isStaticObject())) - { - btVector3 minAabb,maxAabb; - colObj->getCollisionShape()->getAabb(colObj->getWorldTransform(), minAabb,maxAabb); - btBroadphaseInterface* bp = getBroadphase(); - bp->setAabb(body->getBroadphaseHandle(),minAabb,maxAabb, m_dispatcher1); - } - } - } -} - -void btSimpleDynamicsWorld::integrateTransforms(btScalar timeStep) -{ - btTransform predictedTrans; - for ( int i=0;i<m_collisionObjects.size();i++) - { - btCollisionObject* colObj = m_collisionObjects[i]; - btRigidBody* body = btRigidBody::upcast(colObj); - if (body) - { - if (body->isActive() && (!body->isStaticObject())) - { - body->predictIntegratedTransform(timeStep, predictedTrans); - body->proceedToTransform( predictedTrans); - } - } - } -} - - - -void btSimpleDynamicsWorld::predictUnconstraintMotion(btScalar timeStep) -{ - for ( int i=0;i<m_collisionObjects.size();i++) - { - btCollisionObject* colObj = m_collisionObjects[i]; - btRigidBody* body = btRigidBody::upcast(colObj); - if (body) - { - if (!body->isStaticObject()) - { - if (body->isActive()) - { - body->applyGravity(); - body->integrateVelocities( timeStep); - body->applyDamping(timeStep); - body->predictIntegratedTransform(timeStep,body->getInterpolationWorldTransform()); - } - } - } - } -} - - -void btSimpleDynamicsWorld::synchronizeMotionStates() -{ - ///@todo: iterate over awake simulation islands! - for ( int i=0;i<m_collisionObjects.size();i++) - { - btCollisionObject* colObj = m_collisionObjects[i]; - btRigidBody* body = btRigidBody::upcast(colObj); - if (body && body->getMotionState()) - { - if (body->getActivationState() != ISLAND_SLEEPING) - { - body->getMotionState()->setWorldTransform(body->getWorldTransform()); - } - } - } - -} - - -void btSimpleDynamicsWorld::setConstraintSolver(btConstraintSolver* solver) -{ - if (m_ownsConstraintSolver) - { - btAlignedFree(m_constraintSolver); - } - m_ownsConstraintSolver = false; - m_constraintSolver = solver; -} - -btConstraintSolver* btSimpleDynamicsWorld::getConstraintSolver() -{ - return m_constraintSolver; -} diff --git a/thirdparty/bullet/src/BulletDynamics/Dynamics/btSimpleDynamicsWorld.h b/thirdparty/bullet/src/BulletDynamics/Dynamics/btSimpleDynamicsWorld.h deleted file mode 100644 index 44b7e7fb34..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Dynamics/btSimpleDynamicsWorld.h +++ /dev/null @@ -1,89 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_SIMPLE_DYNAMICS_WORLD_H -#define BT_SIMPLE_DYNAMICS_WORLD_H - -#include "btDynamicsWorld.h" - -class btDispatcher; -class btOverlappingPairCache; -class btConstraintSolver; - -///The btSimpleDynamicsWorld serves as unit-test and to verify more complicated and optimized dynamics worlds. -///Please use btDiscreteDynamicsWorld instead -class btSimpleDynamicsWorld : public btDynamicsWorld -{ -protected: - - btConstraintSolver* m_constraintSolver; - - bool m_ownsConstraintSolver; - - void predictUnconstraintMotion(btScalar timeStep); - - void integrateTransforms(btScalar timeStep); - - btVector3 m_gravity; - -public: - - - - ///this btSimpleDynamicsWorld constructor creates dispatcher, broadphase pairCache and constraintSolver - btSimpleDynamicsWorld(btDispatcher* dispatcher,btBroadphaseInterface* pairCache,btConstraintSolver* constraintSolver,btCollisionConfiguration* collisionConfiguration); - - virtual ~btSimpleDynamicsWorld(); - - ///maxSubSteps/fixedTimeStep for interpolation is currently ignored for btSimpleDynamicsWorld, use btDiscreteDynamicsWorld instead - virtual int stepSimulation( btScalar timeStep,int maxSubSteps=1, btScalar fixedTimeStep=btScalar(1.)/btScalar(60.)); - - virtual void setGravity(const btVector3& gravity); - - virtual btVector3 getGravity () const; - - virtual void addRigidBody(btRigidBody* body); - - virtual void addRigidBody(btRigidBody* body, int group, int mask); - - virtual void removeRigidBody(btRigidBody* body); - - virtual void debugDrawWorld(); - - virtual void addAction(btActionInterface* action); - - virtual void removeAction(btActionInterface* action); - - ///removeCollisionObject will first check if it is a rigid body, if so call removeRigidBody otherwise call btCollisionWorld::removeCollisionObject - virtual void removeCollisionObject(btCollisionObject* collisionObject); - - virtual void updateAabbs(); - - virtual void synchronizeMotionStates(); - - virtual void setConstraintSolver(btConstraintSolver* solver); - - virtual btConstraintSolver* getConstraintSolver(); - - virtual btDynamicsWorldType getWorldType() const - { - return BT_SIMPLE_DYNAMICS_WORLD; - } - - virtual void clearForces(); - -}; - -#endif //BT_SIMPLE_DYNAMICS_WORLD_H diff --git a/thirdparty/bullet/src/BulletDynamics/Dynamics/btSimulationIslandManagerMt.cpp b/thirdparty/bullet/src/BulletDynamics/Dynamics/btSimulationIslandManagerMt.cpp deleted file mode 100644 index 99b34353c7..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Dynamics/btSimulationIslandManagerMt.cpp +++ /dev/null @@ -1,678 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - - -#include "LinearMath/btScalar.h" -#include "LinearMath/btThreads.h" -#include "btSimulationIslandManagerMt.h" -#include "BulletCollision/BroadphaseCollision/btDispatcher.h" -#include "BulletCollision/NarrowPhaseCollision/btPersistentManifold.h" -#include "BulletCollision/CollisionDispatch/btCollisionObject.h" -#include "BulletCollision/CollisionDispatch/btCollisionWorld.h" -#include "BulletDynamics/ConstraintSolver/btTypedConstraint.h" - -//#include <stdio.h> -#include "LinearMath/btQuickprof.h" - - -SIMD_FORCE_INLINE int calcBatchCost( int bodies, int manifolds, int constraints ) -{ - // rough estimate of the cost of a batch, used for merging - int batchCost = bodies + 8 * manifolds + 4 * constraints; - return batchCost; -} - - -SIMD_FORCE_INLINE int calcBatchCost( const btSimulationIslandManagerMt::Island* island ) -{ - return calcBatchCost( island->bodyArray.size(), island->manifoldArray.size(), island->constraintArray.size() ); -} - - -btSimulationIslandManagerMt::btSimulationIslandManagerMt() -{ - m_minimumSolverBatchSize = calcBatchCost(0, 128, 0); - m_batchIslandMinBodyCount = 32; - m_islandDispatch = parallelIslandDispatch; - m_batchIsland = NULL; -} - - -btSimulationIslandManagerMt::~btSimulationIslandManagerMt() -{ - for ( int i = 0; i < m_allocatedIslands.size(); ++i ) - { - delete m_allocatedIslands[ i ]; - } - m_allocatedIslands.resize( 0 ); - m_activeIslands.resize( 0 ); - m_freeIslands.resize( 0 ); -} - - -inline int getIslandId(const btPersistentManifold* lhs) -{ - const btCollisionObject* rcolObj0 = static_cast<const btCollisionObject*>(lhs->getBody0()); - const btCollisionObject* rcolObj1 = static_cast<const btCollisionObject*>(lhs->getBody1()); - int islandId = rcolObj0->getIslandTag() >= 0 ? rcolObj0->getIslandTag() : rcolObj1->getIslandTag(); - return islandId; -} - - -SIMD_FORCE_INLINE int btGetConstraintIslandId( const btTypedConstraint* lhs ) -{ - const btCollisionObject& rcolObj0 = lhs->getRigidBodyA(); - const btCollisionObject& rcolObj1 = lhs->getRigidBodyB(); - int islandId = rcolObj0.getIslandTag() >= 0 ? rcolObj0.getIslandTag() : rcolObj1.getIslandTag(); - return islandId; -} - -/// function object that routes calls to operator< -class IslandBatchSizeSortPredicate -{ -public: - bool operator() ( const btSimulationIslandManagerMt::Island* lhs, const btSimulationIslandManagerMt::Island* rhs ) const - { - int lCost = calcBatchCost( lhs ); - int rCost = calcBatchCost( rhs ); - return lCost > rCost; - } -}; - - -class IslandBodyCapacitySortPredicate -{ -public: - bool operator() ( const btSimulationIslandManagerMt::Island* lhs, const btSimulationIslandManagerMt::Island* rhs ) const - { - return lhs->bodyArray.capacity() > rhs->bodyArray.capacity(); - } -}; - - -void btSimulationIslandManagerMt::Island::append( const Island& other ) -{ - // append bodies - for ( int i = 0; i < other.bodyArray.size(); ++i ) - { - bodyArray.push_back( other.bodyArray[ i ] ); - } - // append manifolds - for ( int i = 0; i < other.manifoldArray.size(); ++i ) - { - manifoldArray.push_back( other.manifoldArray[ i ] ); - } - // append constraints - for ( int i = 0; i < other.constraintArray.size(); ++i ) - { - constraintArray.push_back( other.constraintArray[ i ] ); - } -} - - -bool btIsBodyInIsland( const btSimulationIslandManagerMt::Island& island, const btCollisionObject* obj ) -{ - for ( int i = 0; i < island.bodyArray.size(); ++i ) - { - if ( island.bodyArray[ i ] == obj ) - { - return true; - } - } - return false; -} - - -void btSimulationIslandManagerMt::initIslandPools() -{ - // reset island pools - int numElem = getUnionFind().getNumElements(); - m_lookupIslandFromId.resize( numElem ); - for ( int i = 0; i < m_lookupIslandFromId.size(); ++i ) - { - m_lookupIslandFromId[ i ] = NULL; - } - m_activeIslands.resize( 0 ); - m_freeIslands.resize( 0 ); - // check whether allocated islands are sorted by body capacity (largest to smallest) - int lastCapacity = 0; - bool isSorted = true; - for ( int i = 0; i < m_allocatedIslands.size(); ++i ) - { - Island* island = m_allocatedIslands[ i ]; - int cap = island->bodyArray.capacity(); - if ( cap > lastCapacity ) - { - isSorted = false; - break; - } - lastCapacity = cap; - } - if ( !isSorted ) - { - m_allocatedIslands.quickSort( IslandBodyCapacitySortPredicate() ); - } - - m_batchIsland = NULL; - // mark all islands free (but avoid deallocation) - for ( int i = 0; i < m_allocatedIslands.size(); ++i ) - { - Island* island = m_allocatedIslands[ i ]; - island->bodyArray.resize( 0 ); - island->manifoldArray.resize( 0 ); - island->constraintArray.resize( 0 ); - island->id = -1; - island->isSleeping = true; - m_freeIslands.push_back( island ); - } -} - - -btSimulationIslandManagerMt::Island* btSimulationIslandManagerMt::getIsland( int id ) -{ - Island* island = m_lookupIslandFromId[ id ]; - if ( island == NULL ) - { - // search for existing island - for ( int i = 0; i < m_activeIslands.size(); ++i ) - { - if ( m_activeIslands[ i ]->id == id ) - { - island = m_activeIslands[ i ]; - break; - } - } - m_lookupIslandFromId[ id ] = island; - } - return island; -} - - -btSimulationIslandManagerMt::Island* btSimulationIslandManagerMt::allocateIsland( int id, int numBodies ) -{ - Island* island = NULL; - int allocSize = numBodies; - if ( numBodies < m_batchIslandMinBodyCount ) - { - if ( m_batchIsland ) - { - island = m_batchIsland; - m_lookupIslandFromId[ id ] = island; - // if we've made a large enough batch, - if ( island->bodyArray.size() + numBodies >= m_batchIslandMinBodyCount ) - { - // next time start a new batch - m_batchIsland = NULL; - } - return island; - } - else - { - // need to allocate a batch island - allocSize = m_batchIslandMinBodyCount * 2; - } - } - btAlignedObjectArray<Island*>& freeIslands = m_freeIslands; - - // search for free island - if ( freeIslands.size() > 0 ) - { - // try to reuse a previously allocated island - int iFound = freeIslands.size(); - // linear search for smallest island that can hold our bodies - for ( int i = freeIslands.size() - 1; i >= 0; --i ) - { - if ( freeIslands[ i ]->bodyArray.capacity() >= allocSize ) - { - iFound = i; - island = freeIslands[ i ]; - island->id = id; - break; - } - } - // if found, shrink array while maintaining ordering - if ( island ) - { - int iDest = iFound; - int iSrc = iDest + 1; - while ( iSrc < freeIslands.size() ) - { - freeIslands[ iDest++ ] = freeIslands[ iSrc++ ]; - } - freeIslands.pop_back(); - } - } - if ( island == NULL ) - { - // no free island found, allocate - island = new Island(); // TODO: change this to use the pool allocator - island->id = id; - island->bodyArray.reserve( allocSize ); - m_allocatedIslands.push_back( island ); - } - m_lookupIslandFromId[ id ] = island; - if ( numBodies < m_batchIslandMinBodyCount ) - { - m_batchIsland = island; - } - m_activeIslands.push_back( island ); - return island; -} - - -void btSimulationIslandManagerMt::buildIslands( btDispatcher* dispatcher, btCollisionWorld* collisionWorld ) -{ - - BT_PROFILE("islandUnionFindAndQuickSort"); - - btCollisionObjectArray& collisionObjects = collisionWorld->getCollisionObjectArray(); - - //we are going to sort the unionfind array, and store the element id in the size - //afterwards, we clean unionfind, to make sure no-one uses it anymore - - getUnionFind().sortIslands(); - int numElem = getUnionFind().getNumElements(); - - int endIslandIndex=1; - int startIslandIndex; - - //update the sleeping state for bodies, if all are sleeping - for ( startIslandIndex=0;startIslandIndex<numElem;startIslandIndex = endIslandIndex) - { - int islandId = getUnionFind().getElement(startIslandIndex).m_id; - for (endIslandIndex = startIslandIndex+1;(endIslandIndex<numElem) && (getUnionFind().getElement(endIslandIndex).m_id == islandId);endIslandIndex++) - { - } - - //int numSleeping = 0; - - bool allSleeping = true; - - int idx; - for (idx=startIslandIndex;idx<endIslandIndex;idx++) - { - int i = getUnionFind().getElement(idx).m_sz; - - btCollisionObject* colObj0 = collisionObjects[i]; - if ((colObj0->getIslandTag() != islandId) && (colObj0->getIslandTag() != -1)) - { -// printf("error in island management\n"); - } - - btAssert((colObj0->getIslandTag() == islandId) || (colObj0->getIslandTag() == -1)); - if (colObj0->getIslandTag() == islandId) - { - if (colObj0->getActivationState()== ACTIVE_TAG) - { - allSleeping = false; - } - if (colObj0->getActivationState()== DISABLE_DEACTIVATION) - { - allSleeping = false; - } - } - } - - if (allSleeping) - { - int idx; - for (idx=startIslandIndex;idx<endIslandIndex;idx++) - { - int i = getUnionFind().getElement(idx).m_sz; - btCollisionObject* colObj0 = collisionObjects[i]; - if ((colObj0->getIslandTag() != islandId) && (colObj0->getIslandTag() != -1)) - { -// printf("error in island management\n"); - } - - btAssert((colObj0->getIslandTag() == islandId) || (colObj0->getIslandTag() == -1)); - - if (colObj0->getIslandTag() == islandId) - { - colObj0->setActivationState( ISLAND_SLEEPING ); - } - } - } else - { - - int idx; - for (idx=startIslandIndex;idx<endIslandIndex;idx++) - { - int i = getUnionFind().getElement(idx).m_sz; - - btCollisionObject* colObj0 = collisionObjects[i]; - if ((colObj0->getIslandTag() != islandId) && (colObj0->getIslandTag() != -1)) - { -// printf("error in island management\n"); - } - - btAssert((colObj0->getIslandTag() == islandId) || (colObj0->getIslandTag() == -1)); - - if (colObj0->getIslandTag() == islandId) - { - if ( colObj0->getActivationState() == ISLAND_SLEEPING) - { - colObj0->setActivationState( WANTS_DEACTIVATION); - colObj0->setDeactivationTime(0.f); - } - } - } - } - } -} - - -void btSimulationIslandManagerMt::addBodiesToIslands( btCollisionWorld* collisionWorld ) -{ - btCollisionObjectArray& collisionObjects = collisionWorld->getCollisionObjectArray(); - int endIslandIndex = 1; - int startIslandIndex; - int numElem = getUnionFind().getNumElements(); - - // create explicit islands and add bodies to each - for ( startIslandIndex = 0; startIslandIndex < numElem; startIslandIndex = endIslandIndex ) - { - int islandId = getUnionFind().getElement( startIslandIndex ).m_id; - - // find end index - for ( endIslandIndex = startIslandIndex; ( endIslandIndex < numElem ) && ( getUnionFind().getElement( endIslandIndex ).m_id == islandId ); endIslandIndex++ ) - { - } - // check if island is sleeping - bool islandSleeping = true; - for ( int iElem = startIslandIndex; iElem < endIslandIndex; iElem++ ) - { - int i = getUnionFind().getElement( iElem ).m_sz; - btCollisionObject* colObj = collisionObjects[ i ]; - if ( colObj->isActive() ) - { - islandSleeping = false; - } - } - if ( !islandSleeping ) - { - // want to count the number of bodies before allocating the island to optimize memory usage of the Island structures - int numBodies = endIslandIndex - startIslandIndex; - Island* island = allocateIsland( islandId, numBodies ); - island->isSleeping = false; - - // add bodies to island - for ( int iElem = startIslandIndex; iElem < endIslandIndex; iElem++ ) - { - int i = getUnionFind().getElement( iElem ).m_sz; - btCollisionObject* colObj = collisionObjects[ i ]; - island->bodyArray.push_back( colObj ); - } - } - } - -} - - -void btSimulationIslandManagerMt::addManifoldsToIslands( btDispatcher* dispatcher ) -{ - // walk all the manifolds, activating bodies touched by kinematic objects, and add each manifold to its Island - int maxNumManifolds = dispatcher->getNumManifolds(); - for ( int i = 0; i < maxNumManifolds; i++ ) - { - btPersistentManifold* manifold = dispatcher->getManifoldByIndexInternal( i ); - - const btCollisionObject* colObj0 = static_cast<const btCollisionObject*>( manifold->getBody0() ); - const btCollisionObject* colObj1 = static_cast<const btCollisionObject*>( manifold->getBody1() ); - - ///@todo: check sleeping conditions! - if ( ( ( colObj0 ) && colObj0->getActivationState() != ISLAND_SLEEPING ) || - ( ( colObj1 ) && colObj1->getActivationState() != ISLAND_SLEEPING ) ) - { - - //kinematic objects don't merge islands, but wake up all connected objects - if ( colObj0->isKinematicObject() && colObj0->getActivationState() != ISLAND_SLEEPING ) - { - if ( colObj0->hasContactResponse() ) - colObj1->activate(); - } - if ( colObj1->isKinematicObject() && colObj1->getActivationState() != ISLAND_SLEEPING ) - { - if ( colObj1->hasContactResponse() ) - colObj0->activate(); - } - //filtering for response - if ( dispatcher->needsResponse( colObj0, colObj1 ) ) - { - // scatter manifolds into various islands - int islandId = getIslandId( manifold ); - // if island not sleeping, - if ( Island* island = getIsland( islandId ) ) - { - island->manifoldArray.push_back( manifold ); - } - } - } - } -} - - -void btSimulationIslandManagerMt::addConstraintsToIslands( btAlignedObjectArray<btTypedConstraint*>& constraints ) -{ - // walk constraints - for ( int i = 0; i < constraints.size(); i++ ) - { - // scatter constraints into various islands - btTypedConstraint* constraint = constraints[ i ]; - if ( constraint->isEnabled() ) - { - int islandId = btGetConstraintIslandId( constraint ); - // if island is not sleeping, - if ( Island* island = getIsland( islandId ) ) - { - island->constraintArray.push_back( constraint ); - } - } - } -} - - -void btSimulationIslandManagerMt::mergeIslands() -{ - // sort islands in order of decreasing batch size - m_activeIslands.quickSort( IslandBatchSizeSortPredicate() ); - - // merge small islands to satisfy minimum batch size - // find first small batch island - int destIslandIndex = m_activeIslands.size(); - for ( int i = 0; i < m_activeIslands.size(); ++i ) - { - Island* island = m_activeIslands[ i ]; - int batchSize = calcBatchCost( island ); - if ( batchSize < m_minimumSolverBatchSize ) - { - destIslandIndex = i; - break; - } - } - int lastIndex = m_activeIslands.size() - 1; - while ( destIslandIndex < lastIndex ) - { - // merge islands from the back of the list - Island* island = m_activeIslands[ destIslandIndex ]; - int numBodies = island->bodyArray.size(); - int numManifolds = island->manifoldArray.size(); - int numConstraints = island->constraintArray.size(); - int firstIndex = lastIndex; - // figure out how many islands we want to merge and find out how many bodies, manifolds and constraints we will have - while ( true ) - { - Island* src = m_activeIslands[ firstIndex ]; - numBodies += src->bodyArray.size(); - numManifolds += src->manifoldArray.size(); - numConstraints += src->constraintArray.size(); - int batchCost = calcBatchCost( numBodies, numManifolds, numConstraints ); - if ( batchCost >= m_minimumSolverBatchSize ) - { - break; - } - if ( firstIndex - 1 == destIslandIndex ) - { - break; - } - firstIndex--; - } - // reserve space for these pointers to minimize reallocation - island->bodyArray.reserve( numBodies ); - island->manifoldArray.reserve( numManifolds ); - island->constraintArray.reserve( numConstraints ); - // merge islands - for ( int i = firstIndex; i <= lastIndex; ++i ) - { - island->append( *m_activeIslands[ i ] ); - } - // shrink array to exclude the islands that were merged from - m_activeIslands.resize( firstIndex ); - lastIndex = firstIndex - 1; - destIslandIndex++; - } -} - - -void btSimulationIslandManagerMt::serialIslandDispatch( btAlignedObjectArray<Island*>* islandsPtr, IslandCallback* callback ) -{ - BT_PROFILE( "serialIslandDispatch" ); - // serial dispatch - btAlignedObjectArray<Island*>& islands = *islandsPtr; - for ( int i = 0; i < islands.size(); ++i ) - { - Island* island = islands[ i ]; - btPersistentManifold** manifolds = island->manifoldArray.size() ? &island->manifoldArray[ 0 ] : NULL; - btTypedConstraint** constraintsPtr = island->constraintArray.size() ? &island->constraintArray[ 0 ] : NULL; - callback->processIsland( &island->bodyArray[ 0 ], - island->bodyArray.size(), - manifolds, - island->manifoldArray.size(), - constraintsPtr, - island->constraintArray.size(), - island->id - ); - } -} - -struct UpdateIslandDispatcher : public btIParallelForBody -{ - btAlignedObjectArray<btSimulationIslandManagerMt::Island*>* islandsPtr; - btSimulationIslandManagerMt::IslandCallback* callback; - - void forLoop( int iBegin, int iEnd ) const BT_OVERRIDE - { - for ( int i = iBegin; i < iEnd; ++i ) - { - btSimulationIslandManagerMt::Island* island = ( *islandsPtr )[ i ]; - btPersistentManifold** manifolds = island->manifoldArray.size() ? &island->manifoldArray[ 0 ] : NULL; - btTypedConstraint** constraintsPtr = island->constraintArray.size() ? &island->constraintArray[ 0 ] : NULL; - callback->processIsland( &island->bodyArray[ 0 ], - island->bodyArray.size(), - manifolds, - island->manifoldArray.size(), - constraintsPtr, - island->constraintArray.size(), - island->id - ); - } - } -}; - -void btSimulationIslandManagerMt::parallelIslandDispatch( btAlignedObjectArray<Island*>* islandsPtr, IslandCallback* callback ) -{ - BT_PROFILE( "parallelIslandDispatch" ); - int grainSize = 1; // iterations per task - UpdateIslandDispatcher dispatcher; - dispatcher.islandsPtr = islandsPtr; - dispatcher.callback = callback; - btParallelFor( 0, islandsPtr->size(), grainSize, dispatcher ); -} - - -///@todo: this is random access, it can be walked 'cache friendly'! -void btSimulationIslandManagerMt::buildAndProcessIslands( btDispatcher* dispatcher, - btCollisionWorld* collisionWorld, - btAlignedObjectArray<btTypedConstraint*>& constraints, - IslandCallback* callback - ) -{ - btCollisionObjectArray& collisionObjects = collisionWorld->getCollisionObjectArray(); - - buildIslands(dispatcher,collisionWorld); - - BT_PROFILE("processIslands"); - - if(!getSplitIslands()) - { - btPersistentManifold** manifolds = dispatcher->getInternalManifoldPointer(); - int maxNumManifolds = dispatcher->getNumManifolds(); - - for ( int i = 0; i < maxNumManifolds; i++ ) - { - btPersistentManifold* manifold = manifolds[ i ]; - - const btCollisionObject* colObj0 = static_cast<const btCollisionObject*>( manifold->getBody0() ); - const btCollisionObject* colObj1 = static_cast<const btCollisionObject*>( manifold->getBody1() ); - - ///@todo: check sleeping conditions! - if ( ( ( colObj0 ) && colObj0->getActivationState() != ISLAND_SLEEPING ) || - ( ( colObj1 ) && colObj1->getActivationState() != ISLAND_SLEEPING ) ) - { - - //kinematic objects don't merge islands, but wake up all connected objects - if ( colObj0->isKinematicObject() && colObj0->getActivationState() != ISLAND_SLEEPING ) - { - if ( colObj0->hasContactResponse() ) - colObj1->activate(); - } - if ( colObj1->isKinematicObject() && colObj1->getActivationState() != ISLAND_SLEEPING ) - { - if ( colObj1->hasContactResponse() ) - colObj0->activate(); - } - } - } - btTypedConstraint** constraintsPtr = constraints.size() ? &constraints[ 0 ] : NULL; - callback->processIsland(&collisionObjects[0], - collisionObjects.size(), - manifolds, - maxNumManifolds, - constraintsPtr, - constraints.size(), - -1 - ); - } - else - { - initIslandPools(); - - //traverse the simulation islands, and call the solver, unless all objects are sleeping/deactivated - addBodiesToIslands( collisionWorld ); - addManifoldsToIslands( dispatcher ); - addConstraintsToIslands( constraints ); - - // m_activeIslands array should now contain all non-sleeping Islands, and each Island should - // have all the necessary bodies, manifolds and constraints. - - // if we want to merge islands with small batch counts, - if ( m_minimumSolverBatchSize > 1 ) - { - mergeIslands(); - } - // dispatch islands to solver - m_islandDispatch( &m_activeIslands, callback ); - } -} diff --git a/thirdparty/bullet/src/BulletDynamics/Dynamics/btSimulationIslandManagerMt.h b/thirdparty/bullet/src/BulletDynamics/Dynamics/btSimulationIslandManagerMt.h deleted file mode 100644 index 9a781aaef1..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Dynamics/btSimulationIslandManagerMt.h +++ /dev/null @@ -1,110 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_SIMULATION_ISLAND_MANAGER_MT_H -#define BT_SIMULATION_ISLAND_MANAGER_MT_H - -#include "BulletCollision/CollisionDispatch/btSimulationIslandManager.h" - -class btTypedConstraint; - - -/// -/// SimulationIslandManagerMt -- Multithread capable version of SimulationIslandManager -/// Splits the world up into islands which can be solved in parallel. -/// In order to solve islands in parallel, an IslandDispatch function -/// must be provided which will dispatch calls to multiple threads. -/// The amount of parallelism that can be achieved depends on the number -/// of islands. If only a single island exists, then no parallelism is -/// possible. -/// -class btSimulationIslandManagerMt : public btSimulationIslandManager -{ -public: - struct Island - { - // a simulation island consisting of bodies, manifolds and constraints, - // to be passed into a constraint solver. - btAlignedObjectArray<btCollisionObject*> bodyArray; - btAlignedObjectArray<btPersistentManifold*> manifoldArray; - btAlignedObjectArray<btTypedConstraint*> constraintArray; - int id; // island id - bool isSleeping; - - void append( const Island& other ); // add bodies, manifolds, constraints to my own - }; - struct IslandCallback - { - virtual ~IslandCallback() {}; - - virtual void processIsland( btCollisionObject** bodies, - int numBodies, - btPersistentManifold** manifolds, - int numManifolds, - btTypedConstraint** constraints, - int numConstraints, - int islandId - ) = 0; - }; - typedef void( *IslandDispatchFunc ) ( btAlignedObjectArray<Island*>* islands, IslandCallback* callback ); - static void serialIslandDispatch( btAlignedObjectArray<Island*>* islandsPtr, IslandCallback* callback ); - static void parallelIslandDispatch( btAlignedObjectArray<Island*>* islandsPtr, IslandCallback* callback ); -protected: - btAlignedObjectArray<Island*> m_allocatedIslands; // owner of all Islands - btAlignedObjectArray<Island*> m_activeIslands; // islands actively in use - btAlignedObjectArray<Island*> m_freeIslands; // islands ready to be reused - btAlignedObjectArray<Island*> m_lookupIslandFromId; // big lookup table to map islandId to Island pointer - Island* m_batchIsland; - int m_minimumSolverBatchSize; - int m_batchIslandMinBodyCount; - IslandDispatchFunc m_islandDispatch; - - Island* getIsland( int id ); - virtual Island* allocateIsland( int id, int numBodies ); - virtual void initIslandPools(); - virtual void addBodiesToIslands( btCollisionWorld* collisionWorld ); - virtual void addManifoldsToIslands( btDispatcher* dispatcher ); - virtual void addConstraintsToIslands( btAlignedObjectArray<btTypedConstraint*>& constraints ); - virtual void mergeIslands(); - -public: - btSimulationIslandManagerMt(); - virtual ~btSimulationIslandManagerMt(); - - virtual void buildAndProcessIslands( btDispatcher* dispatcher, btCollisionWorld* collisionWorld, btAlignedObjectArray<btTypedConstraint*>& constraints, IslandCallback* callback ); - - virtual void buildIslands(btDispatcher* dispatcher,btCollisionWorld* colWorld); - - int getMinimumSolverBatchSize() const - { - return m_minimumSolverBatchSize; - } - void setMinimumSolverBatchSize( int sz ) - { - m_minimumSolverBatchSize = sz; - } - IslandDispatchFunc getIslandDispatchFunction() const - { - return m_islandDispatch; - } - // allow users to set their own dispatch function for multithreaded dispatch - void setIslandDispatchFunction( IslandDispatchFunc func ) - { - m_islandDispatch = func; - } -}; - -#endif //BT_SIMULATION_ISLAND_MANAGER_H - diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBody.cpp b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBody.cpp deleted file mode 100644 index 62865e0c78..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBody.cpp +++ /dev/null @@ -1,2043 +0,0 @@ -/* - * PURPOSE: - * Class representing an articulated rigid body. Stores the body's - * current state, allows forces and torques to be set, handles - * timestepping and implements Featherstone's algorithm. - * - * COPYRIGHT: - * Copyright (C) Stephen Thompson, <stephen@solarflare.org.uk>, 2011-2013 - * Portions written By Erwin Coumans: connection to LCP solver, various multibody constraints, replacing Eigen math library by Bullet LinearMath and a dedicated 6x6 matrix inverse (solveImatrix) - * Portions written By Jakub Stepien: support for multi-DOF constraints, introduction of spatial algebra and several other improvements - - This software is provided 'as-is', without any express or implied warranty. - In no event will the authors be held liable for any damages arising from the use of this software. - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it freely, - subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. - - */ - - -#include "btMultiBody.h" -#include "btMultiBodyLink.h" -#include "btMultiBodyLinkCollider.h" -#include "btMultiBodyJointFeedback.h" -#include "LinearMath/btTransformUtil.h" -#include "LinearMath/btSerializer.h" -//#include "Bullet3Common/b3Logging.h" -// #define INCLUDE_GYRO_TERM - -///todo: determine if we need these options. If so, make a proper API, otherwise delete those globals -bool gJointFeedbackInWorldSpace = false; -bool gJointFeedbackInJointFrame = false; - -namespace { - const btScalar SLEEP_EPSILON = btScalar(0.05); // this is a squared velocity (m^2 s^-2) - const btScalar SLEEP_TIMEOUT = btScalar(2); // in seconds -} - -namespace { - void SpatialTransform(const btMatrix3x3 &rotation_matrix, // rotates vectors in 'from' frame to vectors in 'to' frame - const btVector3 &displacement, // vector from origin of 'from' frame to origin of 'to' frame, in 'to' coordinates - const btVector3 &top_in, // top part of input vector - const btVector3 &bottom_in, // bottom part of input vector - btVector3 &top_out, // top part of output vector - btVector3 &bottom_out) // bottom part of output vector - { - top_out = rotation_matrix * top_in; - bottom_out = -displacement.cross(top_out) + rotation_matrix * bottom_in; - } - -#if 0 - void InverseSpatialTransform(const btMatrix3x3 &rotation_matrix, - const btVector3 &displacement, - const btVector3 &top_in, - const btVector3 &bottom_in, - btVector3 &top_out, - btVector3 &bottom_out) - { - top_out = rotation_matrix.transpose() * top_in; - bottom_out = rotation_matrix.transpose() * (bottom_in + displacement.cross(top_in)); - } - - btScalar SpatialDotProduct(const btVector3 &a_top, - const btVector3 &a_bottom, - const btVector3 &b_top, - const btVector3 &b_bottom) - { - return a_bottom.dot(b_top) + a_top.dot(b_bottom); - } - - void SpatialCrossProduct(const btVector3 &a_top, - const btVector3 &a_bottom, - const btVector3 &b_top, - const btVector3 &b_bottom, - btVector3 &top_out, - btVector3 &bottom_out) - { - top_out = a_top.cross(b_top); - bottom_out = a_bottom.cross(b_top) + a_top.cross(b_bottom); - } -#endif - -} - - -// -// Implementation of class btMultiBody -// - -btMultiBody::btMultiBody(int n_links, - btScalar mass, - const btVector3 &inertia, - bool fixedBase, - bool canSleep, - bool /*deprecatedUseMultiDof*/) - : - m_baseCollider(0), - m_baseName(0), - m_basePos(0,0,0), - m_baseQuat(0, 0, 0, 1), - m_baseMass(mass), - m_baseInertia(inertia), - - m_fixedBase(fixedBase), - m_awake(true), - m_canSleep(canSleep), - m_sleepTimer(0), - m_userObjectPointer(0), - m_userIndex2(-1), - m_userIndex(-1), - m_linearDamping(0.04f), - m_angularDamping(0.04f), - m_useGyroTerm(true), - m_maxAppliedImpulse(1000.f), - m_maxCoordinateVelocity(100.f), - m_hasSelfCollision(true), - __posUpdated(false), - m_dofCount(0), - m_posVarCnt(0), - m_useRK4(false), - m_useGlobalVelocities(false), - m_internalNeedsJointFeedback(false) -{ - m_cachedInertiaTopLeft.setValue(0,0,0,0,0,0,0,0,0); - m_cachedInertiaTopRight.setValue(0,0,0,0,0,0,0,0,0); - m_cachedInertiaLowerLeft.setValue(0,0,0,0,0,0,0,0,0); - m_cachedInertiaLowerRight.setValue(0,0,0,0,0,0,0,0,0); - m_cachedInertiaValid=false; - - m_links.resize(n_links); - m_matrixBuf.resize(n_links + 1); - - m_baseForce.setValue(0, 0, 0); - m_baseTorque.setValue(0, 0, 0); -} - -btMultiBody::~btMultiBody() -{ -} - -void btMultiBody::setupFixed(int i, - btScalar mass, - const btVector3 &inertia, - int parent, - const btQuaternion &rotParentToThis, - const btVector3 &parentComToThisPivotOffset, - const btVector3 &thisPivotToThisComOffset, bool /*deprecatedDisableParentCollision*/) -{ - - m_links[i].m_mass = mass; - m_links[i].m_inertiaLocal = inertia; - m_links[i].m_parent = parent; - m_links[i].setAxisTop(0, 0., 0., 0.); - m_links[i].setAxisBottom(0, btVector3(0,0,0)); - m_links[i].m_zeroRotParentToThis = rotParentToThis; - m_links[i].m_dVector = thisPivotToThisComOffset; - m_links[i].m_eVector = parentComToThisPivotOffset; - - m_links[i].m_jointType = btMultibodyLink::eFixed; - m_links[i].m_dofCount = 0; - m_links[i].m_posVarCount = 0; - - m_links[i].m_flags |=BT_MULTIBODYLINKFLAGS_DISABLE_PARENT_COLLISION; - - m_links[i].updateCacheMultiDof(); - - updateLinksDofOffsets(); - -} - - -void btMultiBody::setupPrismatic(int i, - btScalar mass, - const btVector3 &inertia, - int parent, - const btQuaternion &rotParentToThis, - const btVector3 &jointAxis, - const btVector3 &parentComToThisPivotOffset, - const btVector3 &thisPivotToThisComOffset, - bool disableParentCollision) -{ - m_dofCount += 1; - m_posVarCnt += 1; - - m_links[i].m_mass = mass; - m_links[i].m_inertiaLocal = inertia; - m_links[i].m_parent = parent; - m_links[i].m_zeroRotParentToThis = rotParentToThis; - m_links[i].setAxisTop(0, 0., 0., 0.); - m_links[i].setAxisBottom(0, jointAxis); - m_links[i].m_eVector = parentComToThisPivotOffset; - m_links[i].m_dVector = thisPivotToThisComOffset; - m_links[i].m_cachedRotParentToThis = rotParentToThis; - - m_links[i].m_jointType = btMultibodyLink::ePrismatic; - m_links[i].m_dofCount = 1; - m_links[i].m_posVarCount = 1; - m_links[i].m_jointPos[0] = 0.f; - m_links[i].m_jointTorque[0] = 0.f; - - if (disableParentCollision) - m_links[i].m_flags |=BT_MULTIBODYLINKFLAGS_DISABLE_PARENT_COLLISION; - // - - m_links[i].updateCacheMultiDof(); - - updateLinksDofOffsets(); -} - -void btMultiBody::setupRevolute(int i, - btScalar mass, - const btVector3 &inertia, - int parent, - const btQuaternion &rotParentToThis, - const btVector3 &jointAxis, - const btVector3 &parentComToThisPivotOffset, - const btVector3 &thisPivotToThisComOffset, - bool disableParentCollision) -{ - m_dofCount += 1; - m_posVarCnt += 1; - - m_links[i].m_mass = mass; - m_links[i].m_inertiaLocal = inertia; - m_links[i].m_parent = parent; - m_links[i].m_zeroRotParentToThis = rotParentToThis; - m_links[i].setAxisTop(0, jointAxis); - m_links[i].setAxisBottom(0, jointAxis.cross(thisPivotToThisComOffset)); - m_links[i].m_dVector = thisPivotToThisComOffset; - m_links[i].m_eVector = parentComToThisPivotOffset; - - m_links[i].m_jointType = btMultibodyLink::eRevolute; - m_links[i].m_dofCount = 1; - m_links[i].m_posVarCount = 1; - m_links[i].m_jointPos[0] = 0.f; - m_links[i].m_jointTorque[0] = 0.f; - - if (disableParentCollision) - m_links[i].m_flags |=BT_MULTIBODYLINKFLAGS_DISABLE_PARENT_COLLISION; - // - m_links[i].updateCacheMultiDof(); - // - updateLinksDofOffsets(); -} - - - -void btMultiBody::setupSpherical(int i, - btScalar mass, - const btVector3 &inertia, - int parent, - const btQuaternion &rotParentToThis, - const btVector3 &parentComToThisPivotOffset, - const btVector3 &thisPivotToThisComOffset, - bool disableParentCollision) -{ - - m_dofCount += 3; - m_posVarCnt += 4; - - m_links[i].m_mass = mass; - m_links[i].m_inertiaLocal = inertia; - m_links[i].m_parent = parent; - m_links[i].m_zeroRotParentToThis = rotParentToThis; - m_links[i].m_dVector = thisPivotToThisComOffset; - m_links[i].m_eVector = parentComToThisPivotOffset; - - m_links[i].m_jointType = btMultibodyLink::eSpherical; - m_links[i].m_dofCount = 3; - m_links[i].m_posVarCount = 4; - m_links[i].setAxisTop(0, 1.f, 0.f, 0.f); - m_links[i].setAxisTop(1, 0.f, 1.f, 0.f); - m_links[i].setAxisTop(2, 0.f, 0.f, 1.f); - m_links[i].setAxisBottom(0, m_links[i].getAxisTop(0).cross(thisPivotToThisComOffset)); - m_links[i].setAxisBottom(1, m_links[i].getAxisTop(1).cross(thisPivotToThisComOffset)); - m_links[i].setAxisBottom(2, m_links[i].getAxisTop(2).cross(thisPivotToThisComOffset)); - m_links[i].m_jointPos[0] = m_links[i].m_jointPos[1] = m_links[i].m_jointPos[2] = 0.f; m_links[i].m_jointPos[3] = 1.f; - m_links[i].m_jointTorque[0] = m_links[i].m_jointTorque[1] = m_links[i].m_jointTorque[2] = 0.f; - - - if (disableParentCollision) - m_links[i].m_flags |=BT_MULTIBODYLINKFLAGS_DISABLE_PARENT_COLLISION; - // - m_links[i].updateCacheMultiDof(); - // - updateLinksDofOffsets(); -} - -void btMultiBody::setupPlanar(int i, - btScalar mass, - const btVector3 &inertia, - int parent, - const btQuaternion &rotParentToThis, - const btVector3 &rotationAxis, - const btVector3 &parentComToThisComOffset, - bool disableParentCollision) -{ - - m_dofCount += 3; - m_posVarCnt += 3; - - m_links[i].m_mass = mass; - m_links[i].m_inertiaLocal = inertia; - m_links[i].m_parent = parent; - m_links[i].m_zeroRotParentToThis = rotParentToThis; - m_links[i].m_dVector.setZero(); - m_links[i].m_eVector = parentComToThisComOffset; - - // - btVector3 vecNonParallelToRotAxis(1, 0, 0); - if(rotationAxis.normalized().dot(vecNonParallelToRotAxis) > 0.999) - vecNonParallelToRotAxis.setValue(0, 1, 0); - // - - m_links[i].m_jointType = btMultibodyLink::ePlanar; - m_links[i].m_dofCount = 3; - m_links[i].m_posVarCount = 3; - btVector3 n=rotationAxis.normalized(); - m_links[i].setAxisTop(0, n[0],n[1],n[2]); - m_links[i].setAxisTop(1,0,0,0); - m_links[i].setAxisTop(2,0,0,0); - m_links[i].setAxisBottom(0,0,0,0); - btVector3 cr = m_links[i].getAxisTop(0).cross(vecNonParallelToRotAxis); - m_links[i].setAxisBottom(1,cr[0],cr[1],cr[2]); - cr = m_links[i].getAxisBottom(1).cross(m_links[i].getAxisTop(0)); - m_links[i].setAxisBottom(2,cr[0],cr[1],cr[2]); - m_links[i].m_jointPos[0] = m_links[i].m_jointPos[1] = m_links[i].m_jointPos[2] = 0.f; - m_links[i].m_jointTorque[0] = m_links[i].m_jointTorque[1] = m_links[i].m_jointTorque[2] = 0.f; - - if (disableParentCollision) - m_links[i].m_flags |=BT_MULTIBODYLINKFLAGS_DISABLE_PARENT_COLLISION; - // - m_links[i].updateCacheMultiDof(); - // - updateLinksDofOffsets(); -} - -void btMultiBody::finalizeMultiDof() -{ - m_deltaV.resize(0); - m_deltaV.resize(6 + m_dofCount); - m_realBuf.resize(6 + m_dofCount + m_dofCount*m_dofCount + 6 + m_dofCount); //m_dofCount for joint-space vels + m_dofCount^2 for "D" matrices + delta-pos vector (6 base "vels" + joint "vels") - m_vectorBuf.resize(2 * m_dofCount); //two 3-vectors (i.e. one six-vector) for each system dof ("h" matrices) - for (int i=0;i<m_vectorBuf.size();i++) - { - m_vectorBuf[i].setValue(0,0,0); - } - updateLinksDofOffsets(); -} - -int btMultiBody::getParent(int i) const -{ - return m_links[i].m_parent; -} - -btScalar btMultiBody::getLinkMass(int i) const -{ - return m_links[i].m_mass; -} - -const btVector3 & btMultiBody::getLinkInertia(int i) const -{ - return m_links[i].m_inertiaLocal; -} - -btScalar btMultiBody::getJointPos(int i) const -{ - return m_links[i].m_jointPos[0]; -} - -btScalar btMultiBody::getJointVel(int i) const -{ - return m_realBuf[6 + m_links[i].m_dofOffset]; -} - -btScalar * btMultiBody::getJointPosMultiDof(int i) -{ - return &m_links[i].m_jointPos[0]; -} - -btScalar * btMultiBody::getJointVelMultiDof(int i) -{ - return &m_realBuf[6 + m_links[i].m_dofOffset]; -} - -const btScalar * btMultiBody::getJointPosMultiDof(int i) const -{ - return &m_links[i].m_jointPos[0]; -} - -const btScalar * btMultiBody::getJointVelMultiDof(int i) const -{ - return &m_realBuf[6 + m_links[i].m_dofOffset]; -} - - -void btMultiBody::setJointPos(int i, btScalar q) -{ - m_links[i].m_jointPos[0] = q; - m_links[i].updateCacheMultiDof(); -} - -void btMultiBody::setJointPosMultiDof(int i, btScalar *q) -{ - for(int pos = 0; pos < m_links[i].m_posVarCount; ++pos) - m_links[i].m_jointPos[pos] = q[pos]; - - m_links[i].updateCacheMultiDof(); -} - -void btMultiBody::setJointVel(int i, btScalar qdot) -{ - m_realBuf[6 + m_links[i].m_dofOffset] = qdot; -} - -void btMultiBody::setJointVelMultiDof(int i, btScalar *qdot) -{ - for(int dof = 0; dof < m_links[i].m_dofCount; ++dof) - m_realBuf[6 + m_links[i].m_dofOffset + dof] = qdot[dof]; -} - -const btVector3 & btMultiBody::getRVector(int i) const -{ - return m_links[i].m_cachedRVector; -} - -const btQuaternion & btMultiBody::getParentToLocalRot(int i) const -{ - return m_links[i].m_cachedRotParentToThis; -} - -btVector3 btMultiBody::localPosToWorld(int i, const btVector3 &local_pos) const -{ - btAssert(i>=-1); - btAssert(i<m_links.size()); - if ((i<-1) || (i>=m_links.size())) - { - return btVector3(SIMD_INFINITY,SIMD_INFINITY,SIMD_INFINITY); - } - - btVector3 result = local_pos; - while (i != -1) { - // 'result' is in frame i. transform it to frame parent(i) - result += getRVector(i); - result = quatRotate(getParentToLocalRot(i).inverse(),result); - i = getParent(i); - } - - // 'result' is now in the base frame. transform it to world frame - result = quatRotate(getWorldToBaseRot().inverse() ,result); - result += getBasePos(); - - return result; -} - -btVector3 btMultiBody::worldPosToLocal(int i, const btVector3 &world_pos) const -{ - btAssert(i>=-1); - btAssert(i<m_links.size()); - if ((i<-1) || (i>=m_links.size())) - { - return btVector3(SIMD_INFINITY,SIMD_INFINITY,SIMD_INFINITY); - } - - if (i == -1) { - // world to base - return quatRotate(getWorldToBaseRot(),(world_pos - getBasePos())); - } else { - // find position in parent frame, then transform to current frame - return quatRotate(getParentToLocalRot(i),worldPosToLocal(getParent(i), world_pos)) - getRVector(i); - } -} - -btVector3 btMultiBody::localDirToWorld(int i, const btVector3 &local_dir) const -{ - btAssert(i>=-1); - btAssert(i<m_links.size()); - if ((i<-1) || (i>=m_links.size())) - { - return btVector3(SIMD_INFINITY,SIMD_INFINITY,SIMD_INFINITY); - } - - - btVector3 result = local_dir; - while (i != -1) { - result = quatRotate(getParentToLocalRot(i).inverse() , result); - i = getParent(i); - } - result = quatRotate(getWorldToBaseRot().inverse() , result); - return result; -} - -btVector3 btMultiBody::worldDirToLocal(int i, const btVector3 &world_dir) const -{ - btAssert(i>=-1); - btAssert(i<m_links.size()); - if ((i<-1) || (i>=m_links.size())) - { - return btVector3(SIMD_INFINITY,SIMD_INFINITY,SIMD_INFINITY); - } - - if (i == -1) { - return quatRotate(getWorldToBaseRot(), world_dir); - } else { - return quatRotate(getParentToLocalRot(i) ,worldDirToLocal(getParent(i), world_dir)); - } -} - -btMatrix3x3 btMultiBody::localFrameToWorld(int i, const btMatrix3x3 &local_frame) const -{ - btMatrix3x3 result = local_frame; - btVector3 frameInWorld0 = localDirToWorld(i, local_frame.getColumn(0)); - btVector3 frameInWorld1 = localDirToWorld(i, local_frame.getColumn(1)); - btVector3 frameInWorld2 = localDirToWorld(i, local_frame.getColumn(2)); - result.setValue(frameInWorld0[0], frameInWorld1[0], frameInWorld2[0], frameInWorld0[1], frameInWorld1[1], frameInWorld2[1], frameInWorld0[2], frameInWorld1[2], frameInWorld2[2]); - return result; -} - -void btMultiBody::compTreeLinkVelocities(btVector3 *omega, btVector3 *vel) const -{ - int num_links = getNumLinks(); - // Calculates the velocities of each link (and the base) in its local frame - omega[0] = quatRotate(m_baseQuat ,getBaseOmega()); - vel[0] = quatRotate(m_baseQuat ,getBaseVel()); - - for (int i = 0; i < num_links; ++i) - { - const int parent = m_links[i].m_parent; - - // transform parent vel into this frame, store in omega[i+1], vel[i+1] - SpatialTransform(btMatrix3x3(m_links[i].m_cachedRotParentToThis), m_links[i].m_cachedRVector, - omega[parent+1], vel[parent+1], - omega[i+1], vel[i+1]); - - // now add qidot * shat_i - //only supported for revolute/prismatic joints, todo: spherical and planar joints - switch(m_links[i].m_jointType) - { - case btMultibodyLink::ePrismatic: - case btMultibodyLink::eRevolute: - { - btVector3 axisTop = m_links[i].getAxisTop(0); - btVector3 axisBottom = m_links[i].getAxisBottom(0); - btScalar jointVel = getJointVel(i); - omega[i+1] += jointVel * axisTop; - vel[i+1] += jointVel * axisBottom; - break; - } - default: - { - } - } - } -} - -btScalar btMultiBody::getKineticEnergy() const -{ - int num_links = getNumLinks(); - // TODO: would be better not to allocate memory here - btAlignedObjectArray<btVector3> omega;omega.resize(num_links+1); - btAlignedObjectArray<btVector3> vel;vel.resize(num_links+1); - compTreeLinkVelocities(&omega[0], &vel[0]); - - // we will do the factor of 0.5 at the end - btScalar result = m_baseMass * vel[0].dot(vel[0]); - result += omega[0].dot(m_baseInertia * omega[0]); - - for (int i = 0; i < num_links; ++i) { - result += m_links[i].m_mass * vel[i+1].dot(vel[i+1]); - result += omega[i+1].dot(m_links[i].m_inertiaLocal * omega[i+1]); - } - - return 0.5f * result; -} - -btVector3 btMultiBody::getAngularMomentum() const -{ - int num_links = getNumLinks(); - // TODO: would be better not to allocate memory here - btAlignedObjectArray<btVector3> omega;omega.resize(num_links+1); - btAlignedObjectArray<btVector3> vel;vel.resize(num_links+1); - btAlignedObjectArray<btQuaternion> rot_from_world;rot_from_world.resize(num_links+1); - compTreeLinkVelocities(&omega[0], &vel[0]); - - rot_from_world[0] = m_baseQuat; - btVector3 result = quatRotate(rot_from_world[0].inverse() , (m_baseInertia * omega[0])); - - for (int i = 0; i < num_links; ++i) { - rot_from_world[i+1] = m_links[i].m_cachedRotParentToThis * rot_from_world[m_links[i].m_parent+1]; - result += (quatRotate(rot_from_world[i+1].inverse() , (m_links[i].m_inertiaLocal * omega[i+1]))); - } - - return result; -} - -void btMultiBody::clearConstraintForces() -{ - m_baseConstraintForce.setValue(0, 0, 0); - m_baseConstraintTorque.setValue(0, 0, 0); - - - for (int i = 0; i < getNumLinks(); ++i) { - m_links[i].m_appliedConstraintForce.setValue(0, 0, 0); - m_links[i].m_appliedConstraintTorque.setValue(0, 0, 0); - } -} -void btMultiBody::clearForcesAndTorques() -{ - m_baseForce.setValue(0, 0, 0); - m_baseTorque.setValue(0, 0, 0); - - - for (int i = 0; i < getNumLinks(); ++i) { - m_links[i].m_appliedForce.setValue(0, 0, 0); - m_links[i].m_appliedTorque.setValue(0, 0, 0); - m_links[i].m_jointTorque[0] = m_links[i].m_jointTorque[1] = m_links[i].m_jointTorque[2] = m_links[i].m_jointTorque[3] = m_links[i].m_jointTorque[4] = m_links[i].m_jointTorque[5] = 0.f; - } -} - -void btMultiBody::clearVelocities() -{ - for (int i = 0; i < 6 + getNumDofs(); ++i) - { - m_realBuf[i] = 0.f; - } -} -void btMultiBody::addLinkForce(int i, const btVector3 &f) -{ - m_links[i].m_appliedForce += f; -} - -void btMultiBody::addLinkTorque(int i, const btVector3 &t) -{ - m_links[i].m_appliedTorque += t; -} - -void btMultiBody::addLinkConstraintForce(int i, const btVector3 &f) -{ - m_links[i].m_appliedConstraintForce += f; -} - -void btMultiBody::addLinkConstraintTorque(int i, const btVector3 &t) -{ - m_links[i].m_appliedConstraintTorque += t; -} - - - -void btMultiBody::addJointTorque(int i, btScalar Q) -{ - m_links[i].m_jointTorque[0] += Q; -} - -void btMultiBody::addJointTorqueMultiDof(int i, int dof, btScalar Q) -{ - m_links[i].m_jointTorque[dof] += Q; -} - -void btMultiBody::addJointTorqueMultiDof(int i, const btScalar *Q) -{ - for(int dof = 0; dof < m_links[i].m_dofCount; ++dof) - m_links[i].m_jointTorque[dof] = Q[dof]; -} - -const btVector3 & btMultiBody::getLinkForce(int i) const -{ - return m_links[i].m_appliedForce; -} - -const btVector3 & btMultiBody::getLinkTorque(int i) const -{ - return m_links[i].m_appliedTorque; -} - -btScalar btMultiBody::getJointTorque(int i) const -{ - return m_links[i].m_jointTorque[0]; -} - -btScalar * btMultiBody::getJointTorqueMultiDof(int i) -{ - return &m_links[i].m_jointTorque[0]; -} - -inline btMatrix3x3 outerProduct(const btVector3& v0, const btVector3& v1) //renamed it from vecMulVecTranspose (http://en.wikipedia.org/wiki/Outer_product); maybe it should be moved to btVector3 like dot and cross? -{ - btVector3 row0 = btVector3( - v0.x() * v1.x(), - v0.x() * v1.y(), - v0.x() * v1.z()); - btVector3 row1 = btVector3( - v0.y() * v1.x(), - v0.y() * v1.y(), - v0.y() * v1.z()); - btVector3 row2 = btVector3( - v0.z() * v1.x(), - v0.z() * v1.y(), - v0.z() * v1.z()); - - btMatrix3x3 m(row0[0],row0[1],row0[2], - row1[0],row1[1],row1[2], - row2[0],row2[1],row2[2]); - return m; -} - -#define vecMulVecTranspose(v0, v1Transposed) outerProduct(v0, v1Transposed) -// - -void btMultiBody::computeAccelerationsArticulatedBodyAlgorithmMultiDof(btScalar dt, - btAlignedObjectArray<btScalar> &scratch_r, - btAlignedObjectArray<btVector3> &scratch_v, - btAlignedObjectArray<btMatrix3x3> &scratch_m, - bool isConstraintPass) -{ - // Implement Featherstone's algorithm to calculate joint accelerations (q_double_dot) - // and the base linear & angular accelerations. - - // We apply damping forces in this routine as well as any external forces specified by the - // caller (via addBaseForce etc). - - // output should point to an array of 6 + num_links reals. - // Format is: 3 angular accelerations (in world frame), 3 linear accelerations (in world frame), - // num_links joint acceleration values. - - // We added support for multi degree of freedom (multi dof) joints. - // In addition we also can compute the joint reaction forces. This is performed in a second pass, - // so that we can include the effect of the constraint solver forces (computed in the PGS LCP solver) - - m_internalNeedsJointFeedback = false; - - int num_links = getNumLinks(); - - const btScalar DAMPING_K1_LINEAR = m_linearDamping; - const btScalar DAMPING_K2_LINEAR = m_linearDamping; - - const btScalar DAMPING_K1_ANGULAR = m_angularDamping; - const btScalar DAMPING_K2_ANGULAR= m_angularDamping; - - btVector3 base_vel = getBaseVel(); - btVector3 base_omega = getBaseOmega(); - - // Temporary matrices/vectors -- use scratch space from caller - // so that we don't have to keep reallocating every frame - - scratch_r.resize(2*m_dofCount + 6); //multidof? ("Y"s use it and it is used to store qdd) => 2 x m_dofCount - scratch_v.resize(8*num_links + 6); - scratch_m.resize(4*num_links + 4); - - //btScalar * r_ptr = &scratch_r[0]; - btScalar * output = &scratch_r[m_dofCount]; // "output" holds the q_double_dot results - btVector3 * v_ptr = &scratch_v[0]; - - // vhat_i (top = angular, bottom = linear part) - btSpatialMotionVector *spatVel = (btSpatialMotionVector *)v_ptr; - v_ptr += num_links * 2 + 2; - // - // zhat_i^A - btSpatialForceVector * zeroAccSpatFrc = (btSpatialForceVector *)v_ptr; - v_ptr += num_links * 2 + 2; - // - // chat_i (note NOT defined for the base) - btSpatialMotionVector * spatCoriolisAcc = (btSpatialMotionVector *)v_ptr; - v_ptr += num_links * 2; - // - // Ihat_i^A. - btSymmetricSpatialDyad * spatInertia = (btSymmetricSpatialDyad *)&scratch_m[num_links + 1]; - - // Cached 3x3 rotation matrices from parent frame to this frame. - btMatrix3x3 * rot_from_parent = &m_matrixBuf[0]; - btMatrix3x3 * rot_from_world = &scratch_m[0]; - - // hhat_i, ahat_i - // hhat is NOT stored for the base (but ahat is) - btSpatialForceVector * h = (btSpatialForceVector *)(m_dofCount > 0 ? &m_vectorBuf[0] : 0); - btSpatialMotionVector * spatAcc = (btSpatialMotionVector *)v_ptr; - v_ptr += num_links * 2 + 2; - // - // Y_i, invD_i - btScalar * invD = m_dofCount > 0 ? &m_realBuf[6 + m_dofCount] : 0; - btScalar * Y = &scratch_r[0]; - // - //aux variables - btSpatialMotionVector spatJointVel; //spatial velocity due to the joint motion (i.e. without predecessors' influence) - btScalar D[36]; //"D" matrix; it's dofxdof for each body so asingle 6x6 D matrix will do - btScalar invD_times_Y[6]; //D^{-1} * Y [dofxdof x dofx1 = dofx1] <=> D^{-1} * u; better moved to buffers since it is recalced in calcAccelerationDeltasMultiDof; num_dof of btScalar would cover all bodies - btSpatialMotionVector result; //holds results of the SolveImatrix op; it is a spatial motion vector (accel) - btScalar Y_minus_hT_a[6]; //Y - h^{T} * a; it's dofx1 for each body so a single 6x1 temp is enough - btSpatialForceVector spatForceVecTemps[6]; //6 temporary spatial force vectors - btSpatialTransformationMatrix fromParent; //spatial transform from parent to child - btSymmetricSpatialDyad dyadTemp; //inertia matrix temp - btSpatialTransformationMatrix fromWorld; - fromWorld.m_trnVec.setZero(); - ///////////////// - - // ptr to the joint accel part of the output - btScalar * joint_accel = output + 6; - - // Start of the algorithm proper. - - // First 'upward' loop. - // Combines CompTreeLinkVelocities and InitTreeLinks from Mirtich. - - rot_from_parent[0] = btMatrix3x3(m_baseQuat); //m_baseQuat assumed to be alias!? - - //create the vector of spatial velocity of the base by transforming global-coor linear and angular velocities into base-local coordinates - spatVel[0].setVector(rot_from_parent[0] * base_omega, rot_from_parent[0] * base_vel); - - if (m_fixedBase) - { - zeroAccSpatFrc[0].setZero(); - } - else - { - btVector3 baseForce = isConstraintPass? m_baseConstraintForce : m_baseForce; - btVector3 baseTorque = isConstraintPass? m_baseConstraintTorque : m_baseTorque; - //external forces - zeroAccSpatFrc[0].setVector(-(rot_from_parent[0] * baseTorque), -(rot_from_parent[0] * baseForce)); - - //adding damping terms (only) - btScalar linDampMult = 1., angDampMult = 1.; - zeroAccSpatFrc[0].addVector(angDampMult * m_baseInertia * spatVel[0].getAngular() * (DAMPING_K1_ANGULAR + DAMPING_K2_ANGULAR * spatVel[0].getAngular().safeNorm()), - linDampMult * m_baseMass * spatVel[0].getLinear() * (DAMPING_K1_LINEAR + DAMPING_K2_LINEAR * spatVel[0].getLinear().safeNorm())); - - // - //p += vhat x Ihat vhat - done in a simpler way - if (m_useGyroTerm) - zeroAccSpatFrc[0].addAngular(spatVel[0].getAngular().cross(m_baseInertia * spatVel[0].getAngular())); - // - zeroAccSpatFrc[0].addLinear(m_baseMass * spatVel[0].getAngular().cross(spatVel[0].getLinear())); - } - - - //init the spatial AB inertia (it has the simple form thanks to choosing local body frames origins at their COMs) - spatInertia[0].setMatrix( btMatrix3x3(0,0,0,0,0,0,0,0,0), - // - btMatrix3x3(m_baseMass, 0, 0, - 0, m_baseMass, 0, - 0, 0, m_baseMass), - // - btMatrix3x3(m_baseInertia[0], 0, 0, - 0, m_baseInertia[1], 0, - 0, 0, m_baseInertia[2]) - ); - - rot_from_world[0] = rot_from_parent[0]; - - // - for (int i = 0; i < num_links; ++i) { - const int parent = m_links[i].m_parent; - rot_from_parent[i+1] = btMatrix3x3(m_links[i].m_cachedRotParentToThis); - rot_from_world[i+1] = rot_from_parent[i+1] * rot_from_world[parent+1]; - - fromParent.m_rotMat = rot_from_parent[i+1]; fromParent.m_trnVec = m_links[i].m_cachedRVector; - fromWorld.m_rotMat = rot_from_world[i+1]; - fromParent.transform(spatVel[parent+1], spatVel[i+1]); - - // now set vhat_i to its true value by doing - // vhat_i += qidot * shat_i - if(!m_useGlobalVelocities) - { - spatJointVel.setZero(); - - for(int dof = 0; dof < m_links[i].m_dofCount; ++dof) - spatJointVel += m_links[i].m_axes[dof] * getJointVelMultiDof(i)[dof]; - - // remember vhat_i is really vhat_p(i) (but in current frame) at this point => we need to add velocity across the inboard joint - spatVel[i+1] += spatJointVel; - - // - // vhat_i is vhat_p(i) transformed to local coors + the velocity across the i-th inboard joint - //spatVel[i+1] = fromParent * spatVel[parent+1] + spatJointVel; - - } - else - { - fromWorld.transformRotationOnly(m_links[i].m_absFrameTotVelocity, spatVel[i+1]); - fromWorld.transformRotationOnly(m_links[i].m_absFrameLocVelocity, spatJointVel); - } - - // we can now calculate chat_i - spatVel[i+1].cross(spatJointVel, spatCoriolisAcc[i]); - - // calculate zhat_i^A - // - //external forces - btVector3 linkAppliedForce = isConstraintPass? m_links[i].m_appliedConstraintForce : m_links[i].m_appliedForce; - btVector3 linkAppliedTorque =isConstraintPass ? m_links[i].m_appliedConstraintTorque : m_links[i].m_appliedTorque; - - zeroAccSpatFrc[i+1].setVector(-(rot_from_world[i+1] * linkAppliedTorque), -(rot_from_world[i+1] * linkAppliedForce )); - -#if 0 - { - - b3Printf("stepVelocitiesMultiDof zeroAccSpatFrc[%d] linear:%f,%f,%f, angular:%f,%f,%f", - i+1, - zeroAccSpatFrc[i+1].m_topVec[0], - zeroAccSpatFrc[i+1].m_topVec[1], - zeroAccSpatFrc[i+1].m_topVec[2], - - zeroAccSpatFrc[i+1].m_bottomVec[0], - zeroAccSpatFrc[i+1].m_bottomVec[1], - zeroAccSpatFrc[i+1].m_bottomVec[2]); - } -#endif - // - //adding damping terms (only) - btScalar linDampMult = 1., angDampMult = 1.; - zeroAccSpatFrc[i+1].addVector(angDampMult * m_links[i].m_inertiaLocal * spatVel[i+1].getAngular() * (DAMPING_K1_ANGULAR + DAMPING_K2_ANGULAR * spatVel[i+1].getAngular().safeNorm()), - linDampMult * m_links[i].m_mass * spatVel[i+1].getLinear() * (DAMPING_K1_LINEAR + DAMPING_K2_LINEAR * spatVel[i+1].getLinear().safeNorm())); - - // calculate Ihat_i^A - //init the spatial AB inertia (it has the simple form thanks to choosing local body frames origins at their COMs) - spatInertia[i+1].setMatrix( btMatrix3x3(0,0,0,0,0,0,0,0,0), - // - btMatrix3x3(m_links[i].m_mass, 0, 0, - 0, m_links[i].m_mass, 0, - 0, 0, m_links[i].m_mass), - // - btMatrix3x3(m_links[i].m_inertiaLocal[0], 0, 0, - 0, m_links[i].m_inertiaLocal[1], 0, - 0, 0, m_links[i].m_inertiaLocal[2]) - ); - // - //p += vhat x Ihat vhat - done in a simpler way - if(m_useGyroTerm) - zeroAccSpatFrc[i+1].addAngular(spatVel[i+1].getAngular().cross(m_links[i].m_inertiaLocal * spatVel[i+1].getAngular())); - // - zeroAccSpatFrc[i+1].addLinear(m_links[i].m_mass * spatVel[i+1].getAngular().cross(spatVel[i+1].getLinear())); - //btVector3 temp = m_links[i].m_mass * spatVel[i+1].getAngular().cross(spatVel[i+1].getLinear()); - ////clamp parent's omega - //btScalar parOmegaMod = temp.length(); - //btScalar parOmegaModMax = 1000; - //if(parOmegaMod > parOmegaModMax) - // temp *= parOmegaModMax / parOmegaMod; - //zeroAccSpatFrc[i+1].addLinear(temp); - //printf("|zeroAccSpatFrc[%d]| = %.4f\n", i+1, temp.length()); - //temp = spatCoriolisAcc[i].getLinear(); - //printf("|spatCoriolisAcc[%d]| = %.4f\n", i+1, temp.length()); - - - - //printf("w[%d] = [%.4f %.4f %.4f]\n", i, vel_top_angular[i+1].x(), vel_top_angular[i+1].y(), vel_top_angular[i+1].z()); - //printf("v[%d] = [%.4f %.4f %.4f]\n", i, vel_bottom_linear[i+1].x(), vel_bottom_linear[i+1].y(), vel_bottom_linear[i+1].z()); - //printf("c[%d] = [%.4f %.4f %.4f]\n", i, coriolis_bottom_linear[i].x(), coriolis_bottom_linear[i].y(), coriolis_bottom_linear[i].z()); - } - - // 'Downward' loop. - // (part of TreeForwardDynamics in Mirtich.) - for (int i = num_links - 1; i >= 0; --i) - { - const int parent = m_links[i].m_parent; - fromParent.m_rotMat = rot_from_parent[i+1]; fromParent.m_trnVec = m_links[i].m_cachedRVector; - - for(int dof = 0; dof < m_links[i].m_dofCount; ++dof) - { - btSpatialForceVector &hDof = h[m_links[i].m_dofOffset + dof]; - // - hDof = spatInertia[i+1] * m_links[i].m_axes[dof]; - // - Y[m_links[i].m_dofOffset + dof] = m_links[i].m_jointTorque[dof] - - m_links[i].m_axes[dof].dot(zeroAccSpatFrc[i+1]) - - spatCoriolisAcc[i].dot(hDof) - ; - } - - for(int dof = 0; dof < m_links[i].m_dofCount; ++dof) - { - btScalar *D_row = &D[dof * m_links[i].m_dofCount]; - for(int dof2 = 0; dof2 < m_links[i].m_dofCount; ++dof2) - { - btSpatialForceVector &hDof2 = h[m_links[i].m_dofOffset + dof2]; - D_row[dof2] = m_links[i].m_axes[dof].dot(hDof2); - } - } - - btScalar *invDi = &invD[m_links[i].m_dofOffset*m_links[i].m_dofOffset]; - switch(m_links[i].m_jointType) - { - case btMultibodyLink::ePrismatic: - case btMultibodyLink::eRevolute: - { - invDi[0] = 1.0f / D[0]; - break; - } - case btMultibodyLink::eSpherical: - case btMultibodyLink::ePlanar: - { - btMatrix3x3 D3x3; D3x3.setValue(D[0], D[1], D[2], D[3], D[4], D[5], D[6], D[7], D[8]); - btMatrix3x3 invD3x3; invD3x3 = D3x3.inverse(); - - //unroll the loop? - for(int row = 0; row < 3; ++row) - { - for(int col = 0; col < 3; ++col) - { - invDi[row * 3 + col] = invD3x3[row][col]; - } - } - - break; - } - default: - { - - } - } - - //determine h*D^{-1} - for(int dof = 0; dof < m_links[i].m_dofCount; ++dof) - { - spatForceVecTemps[dof].setZero(); - - for(int dof2 = 0; dof2 < m_links[i].m_dofCount; ++dof2) - { - btSpatialForceVector &hDof2 = h[m_links[i].m_dofOffset + dof2]; - // - spatForceVecTemps[dof] += hDof2 * invDi[dof2 * m_links[i].m_dofCount + dof]; - } - } - - dyadTemp = spatInertia[i+1]; - - //determine (h*D^{-1}) * h^{T} - for(int dof = 0; dof < m_links[i].m_dofCount; ++dof) - { - btSpatialForceVector &hDof = h[m_links[i].m_dofOffset + dof]; - // - dyadTemp -= symmetricSpatialOuterProduct(hDof, spatForceVecTemps[dof]); - } - - fromParent.transformInverse(dyadTemp, spatInertia[parent+1], btSpatialTransformationMatrix::Add); - - for(int dof = 0; dof < m_links[i].m_dofCount; ++dof) - { - invD_times_Y[dof] = 0.f; - - for(int dof2 = 0; dof2 < m_links[i].m_dofCount; ++dof2) - { - invD_times_Y[dof] += invDi[dof * m_links[i].m_dofCount + dof2] * Y[m_links[i].m_dofOffset + dof2]; - } - } - - spatForceVecTemps[0] = zeroAccSpatFrc[i+1] + spatInertia[i+1] * spatCoriolisAcc[i]; - - for(int dof = 0; dof < m_links[i].m_dofCount; ++dof) - { - btSpatialForceVector &hDof = h[m_links[i].m_dofOffset + dof]; - // - spatForceVecTemps[0] += hDof * invD_times_Y[dof]; - } - - fromParent.transformInverse(spatForceVecTemps[0], spatForceVecTemps[1]); - - zeroAccSpatFrc[parent+1] += spatForceVecTemps[1]; - } - - - // Second 'upward' loop - // (part of TreeForwardDynamics in Mirtich) - - if (m_fixedBase) - { - spatAcc[0].setZero(); - } - else - { - if (num_links > 0) - { - m_cachedInertiaValid = true; - m_cachedInertiaTopLeft = spatInertia[0].m_topLeftMat; - m_cachedInertiaTopRight = spatInertia[0].m_topRightMat; - m_cachedInertiaLowerLeft = spatInertia[0].m_bottomLeftMat; - m_cachedInertiaLowerRight= spatInertia[0].m_topLeftMat.transpose(); - - } - - solveImatrix(zeroAccSpatFrc[0], result); - spatAcc[0] = -result; - } - - - // now do the loop over the m_links - for (int i = 0; i < num_links; ++i) - { - // qdd = D^{-1} * (Y - h^{T}*apar) = (S^{T}*I*S)^{-1} * (tau - S^{T}*I*cor - S^{T}*zeroAccFrc - S^{T}*I*apar) - // a = apar + cor + Sqdd - //or - // qdd = D^{-1} * (Y - h^{T}*(apar+cor)) - // a = apar + Sqdd - - const int parent = m_links[i].m_parent; - fromParent.m_rotMat = rot_from_parent[i+1]; fromParent.m_trnVec = m_links[i].m_cachedRVector; - - fromParent.transform(spatAcc[parent+1], spatAcc[i+1]); - - for(int dof = 0; dof < m_links[i].m_dofCount; ++dof) - { - btSpatialForceVector &hDof = h[m_links[i].m_dofOffset + dof]; - // - Y_minus_hT_a[dof] = Y[m_links[i].m_dofOffset + dof] - spatAcc[i+1].dot(hDof); - } - - btScalar *invDi = &invD[m_links[i].m_dofOffset*m_links[i].m_dofOffset]; - //D^{-1} * (Y - h^{T}*apar) - mulMatrix(invDi, Y_minus_hT_a, m_links[i].m_dofCount, m_links[i].m_dofCount, m_links[i].m_dofCount, 1, &joint_accel[m_links[i].m_dofOffset]); - - spatAcc[i+1] += spatCoriolisAcc[i]; - - for(int dof = 0; dof < m_links[i].m_dofCount; ++dof) - spatAcc[i+1] += m_links[i].m_axes[dof] * joint_accel[m_links[i].m_dofOffset + dof]; - - if (m_links[i].m_jointFeedback) - { - m_internalNeedsJointFeedback = true; - - btVector3 angularBotVec = (spatInertia[i+1]*spatAcc[i+1]+zeroAccSpatFrc[i+1]).m_bottomVec; - btVector3 linearTopVec = (spatInertia[i+1]*spatAcc[i+1]+zeroAccSpatFrc[i+1]).m_topVec; - - if (gJointFeedbackInJointFrame) - { - //shift the reaction forces to the joint frame - //linear (force) component is the same - //shift the angular (torque, moment) component using the relative position, m_links[i].m_dVector - angularBotVec = angularBotVec - linearTopVec.cross(m_links[i].m_dVector); - } - - - if (gJointFeedbackInWorldSpace) - { - if (isConstraintPass) - { - m_links[i].m_jointFeedback->m_reactionForces.m_bottomVec += m_links[i].m_cachedWorldTransform.getBasis()*angularBotVec; - m_links[i].m_jointFeedback->m_reactionForces.m_topVec += m_links[i].m_cachedWorldTransform.getBasis()*linearTopVec; - } else - { - m_links[i].m_jointFeedback->m_reactionForces.m_bottomVec = m_links[i].m_cachedWorldTransform.getBasis()*angularBotVec; - m_links[i].m_jointFeedback->m_reactionForces.m_topVec = m_links[i].m_cachedWorldTransform.getBasis()*linearTopVec; - } - } else - { - if (isConstraintPass) - { - m_links[i].m_jointFeedback->m_reactionForces.m_bottomVec += angularBotVec; - m_links[i].m_jointFeedback->m_reactionForces.m_topVec += linearTopVec; - - } - else - { - m_links[i].m_jointFeedback->m_reactionForces.m_bottomVec = angularBotVec; - m_links[i].m_jointFeedback->m_reactionForces.m_topVec = linearTopVec; - } - } - } - - } - - // transform base accelerations back to the world frame. - btVector3 omegadot_out = rot_from_parent[0].transpose() * spatAcc[0].getAngular(); - output[0] = omegadot_out[0]; - output[1] = omegadot_out[1]; - output[2] = omegadot_out[2]; - - btVector3 vdot_out = rot_from_parent[0].transpose() * (spatAcc[0].getLinear() + spatVel[0].getAngular().cross(spatVel[0].getLinear())); - output[3] = vdot_out[0]; - output[4] = vdot_out[1]; - output[5] = vdot_out[2]; - - ///////////////// - //printf("q = ["); - //printf("%.6f, %.6f, %.6f, %.6f, %.6f, %.6f, %.6f ", m_baseQuat.x(), m_baseQuat.y(), m_baseQuat.z(), m_baseQuat.w(), m_basePos.x(), m_basePos.y(), m_basePos.z()); - //for(int link = 0; link < getNumLinks(); ++link) - // for(int dof = 0; dof < m_links[link].m_dofCount; ++dof) - // printf("%.6f ", m_links[link].m_jointPos[dof]); - //printf("]\n"); - //// - //printf("qd = ["); - //for(int dof = 0; dof < getNumDofs() + 6; ++dof) - // printf("%.6f ", m_realBuf[dof]); - //printf("]\n"); - //printf("qdd = ["); - //for(int dof = 0; dof < getNumDofs() + 6; ++dof) - // printf("%.6f ", output[dof]); - //printf("]\n"); - ///////////////// - - // Final step: add the accelerations (times dt) to the velocities. - - if (!isConstraintPass) - { - if(dt > 0.) - applyDeltaVeeMultiDof(output, dt); - - } - ///// - //btScalar angularThres = 1; - //btScalar maxAngVel = 0.; - //bool scaleDown = 1.; - //for(int link = 0; link < m_links.size(); ++link) - //{ - // if(spatVel[link+1].getAngular().length() > maxAngVel) - // { - // maxAngVel = spatVel[link+1].getAngular().length(); - // scaleDown = angularThres / spatVel[link+1].getAngular().length(); - // break; - // } - //} - - //if(scaleDown != 1.) - //{ - // for(int link = 0; link < m_links.size(); ++link) - // { - // if(m_links[link].m_jointType == btMultibodyLink::eRevolute || m_links[link].m_jointType == btMultibodyLink::eSpherical) - // { - // for(int dof = 0; dof < m_links[link].m_dofCount; ++dof) - // getJointVelMultiDof(link)[dof] *= scaleDown; - // } - // } - //} - ///// - - ///////////////////// - if(m_useGlobalVelocities) - { - for (int i = 0; i < num_links; ++i) - { - const int parent = m_links[i].m_parent; - //rot_from_parent[i+1] = btMatrix3x3(m_links[i].m_cachedRotParentToThis); /// <- done - //rot_from_world[i+1] = rot_from_parent[i+1] * rot_from_world[parent+1]; /// <- done - - fromParent.m_rotMat = rot_from_parent[i+1]; fromParent.m_trnVec = m_links[i].m_cachedRVector; - fromWorld.m_rotMat = rot_from_world[i+1]; - - // vhat_i = i_xhat_p(i) * vhat_p(i) - fromParent.transform(spatVel[parent+1], spatVel[i+1]); - //nice alternative below (using operator *) but it generates temps - ///////////////////////////////////////////////////////////// - - // now set vhat_i to its true value by doing - // vhat_i += qidot * shat_i - spatJointVel.setZero(); - - for(int dof = 0; dof < m_links[i].m_dofCount; ++dof) - spatJointVel += m_links[i].m_axes[dof] * getJointVelMultiDof(i)[dof]; - - // remember vhat_i is really vhat_p(i) (but in current frame) at this point => we need to add velocity across the inboard joint - spatVel[i+1] += spatJointVel; - - - fromWorld.transformInverseRotationOnly(spatVel[i+1], m_links[i].m_absFrameTotVelocity); - fromWorld.transformInverseRotationOnly(spatJointVel, m_links[i].m_absFrameLocVelocity); - } - } - -} - - - -void btMultiBody::solveImatrix(const btVector3& rhs_top, const btVector3& rhs_bot, btScalar result[6]) const -{ - int num_links = getNumLinks(); - ///solve I * x = rhs, so the result = invI * rhs - if (num_links == 0) - { - // in the case of 0 m_links (i.e. a plain rigid body, not a multibody) rhs * invI is easier - result[0] = rhs_bot[0] / m_baseInertia[0]; - result[1] = rhs_bot[1] / m_baseInertia[1]; - result[2] = rhs_bot[2] / m_baseInertia[2]; - result[3] = rhs_top[0] / m_baseMass; - result[4] = rhs_top[1] / m_baseMass; - result[5] = rhs_top[2] / m_baseMass; - } else - { - if (!m_cachedInertiaValid) - { - for (int i=0;i<6;i++) - { - result[i] = 0.f; - } - return; - } - /// Special routine for calculating the inverse of a spatial inertia matrix - ///the 6x6 matrix is stored as 4 blocks of 3x3 matrices - btMatrix3x3 Binv = m_cachedInertiaTopRight.inverse()*-1.f; - btMatrix3x3 tmp = m_cachedInertiaLowerRight * Binv; - btMatrix3x3 invIupper_right = (tmp * m_cachedInertiaTopLeft + m_cachedInertiaLowerLeft).inverse(); - tmp = invIupper_right * m_cachedInertiaLowerRight; - btMatrix3x3 invI_upper_left = (tmp * Binv); - btMatrix3x3 invI_lower_right = (invI_upper_left).transpose(); - tmp = m_cachedInertiaTopLeft * invI_upper_left; - tmp[0][0]-= 1.0; - tmp[1][1]-= 1.0; - tmp[2][2]-= 1.0; - btMatrix3x3 invI_lower_left = (Binv * tmp); - - //multiply result = invI * rhs - { - btVector3 vtop = invI_upper_left*rhs_top; - btVector3 tmp; - tmp = invIupper_right * rhs_bot; - vtop += tmp; - btVector3 vbot = invI_lower_left*rhs_top; - tmp = invI_lower_right * rhs_bot; - vbot += tmp; - result[0] = vtop[0]; - result[1] = vtop[1]; - result[2] = vtop[2]; - result[3] = vbot[0]; - result[4] = vbot[1]; - result[5] = vbot[2]; - } - - } -} -void btMultiBody::solveImatrix(const btSpatialForceVector &rhs, btSpatialMotionVector &result) const -{ - int num_links = getNumLinks(); - ///solve I * x = rhs, so the result = invI * rhs - if (num_links == 0) - { - // in the case of 0 m_links (i.e. a plain rigid body, not a multibody) rhs * invI is easier - result.setAngular(rhs.getAngular() / m_baseInertia); - result.setLinear(rhs.getLinear() / m_baseMass); - } else - { - /// Special routine for calculating the inverse of a spatial inertia matrix - ///the 6x6 matrix is stored as 4 blocks of 3x3 matrices - if (!m_cachedInertiaValid) - { - result.setLinear(btVector3(0,0,0)); - result.setAngular(btVector3(0,0,0)); - result.setVector(btVector3(0,0,0),btVector3(0,0,0)); - return; - } - btMatrix3x3 Binv = m_cachedInertiaTopRight.inverse()*-1.f; - btMatrix3x3 tmp = m_cachedInertiaLowerRight * Binv; - btMatrix3x3 invIupper_right = (tmp * m_cachedInertiaTopLeft + m_cachedInertiaLowerLeft).inverse(); - tmp = invIupper_right * m_cachedInertiaLowerRight; - btMatrix3x3 invI_upper_left = (tmp * Binv); - btMatrix3x3 invI_lower_right = (invI_upper_left).transpose(); - tmp = m_cachedInertiaTopLeft * invI_upper_left; - tmp[0][0]-= 1.0; - tmp[1][1]-= 1.0; - tmp[2][2]-= 1.0; - btMatrix3x3 invI_lower_left = (Binv * tmp); - - //multiply result = invI * rhs - { - btVector3 vtop = invI_upper_left*rhs.getLinear(); - btVector3 tmp; - tmp = invIupper_right * rhs.getAngular(); - vtop += tmp; - btVector3 vbot = invI_lower_left*rhs.getLinear(); - tmp = invI_lower_right * rhs.getAngular(); - vbot += tmp; - result.setVector(vtop, vbot); - } - - } -} - -void btMultiBody::mulMatrix(btScalar *pA, btScalar *pB, int rowsA, int colsA, int rowsB, int colsB, btScalar *pC) const -{ - for (int row = 0; row < rowsA; row++) - { - for (int col = 0; col < colsB; col++) - { - pC[row * colsB + col] = 0.f; - for (int inner = 0; inner < rowsB; inner++) - { - pC[row * colsB + col] += pA[row * colsA + inner] * pB[col + inner * colsB]; - } - } - } -} - -void btMultiBody::calcAccelerationDeltasMultiDof(const btScalar *force, btScalar *output, - btAlignedObjectArray<btScalar> &scratch_r, btAlignedObjectArray<btVector3> &scratch_v) const -{ - // Temporary matrices/vectors -- use scratch space from caller - // so that we don't have to keep reallocating every frame - - - int num_links = getNumLinks(); - scratch_r.resize(m_dofCount); - scratch_v.resize(4*num_links + 4); - - btScalar * r_ptr = m_dofCount ? &scratch_r[0] : 0; - btVector3 * v_ptr = &scratch_v[0]; - - // zhat_i^A (scratch space) - btSpatialForceVector * zeroAccSpatFrc = (btSpatialForceVector *)v_ptr; - v_ptr += num_links * 2 + 2; - - // rot_from_parent (cached from calcAccelerations) - const btMatrix3x3 * rot_from_parent = &m_matrixBuf[0]; - - // hhat (cached), accel (scratch) - // hhat is NOT stored for the base (but ahat is) - const btSpatialForceVector * h = (btSpatialForceVector *)(m_dofCount > 0 ? &m_vectorBuf[0] : 0); - btSpatialMotionVector * spatAcc = (btSpatialMotionVector *)v_ptr; - v_ptr += num_links * 2 + 2; - - // Y_i (scratch), invD_i (cached) - const btScalar * invD = m_dofCount > 0 ? &m_realBuf[6 + m_dofCount] : 0; - btScalar * Y = r_ptr; - //////////////// - //aux variables - btScalar invD_times_Y[6]; //D^{-1} * Y [dofxdof x dofx1 = dofx1] <=> D^{-1} * u; better moved to buffers since it is recalced in calcAccelerationDeltasMultiDof; num_dof of btScalar would cover all bodies - btSpatialMotionVector result; //holds results of the SolveImatrix op; it is a spatial motion vector (accel) - btScalar Y_minus_hT_a[6]; //Y - h^{T} * a; it's dofx1 for each body so a single 6x1 temp is enough - btSpatialForceVector spatForceVecTemps[6]; //6 temporary spatial force vectors - btSpatialTransformationMatrix fromParent; - ///////////////// - - // First 'upward' loop. - // Combines CompTreeLinkVelocities and InitTreeLinks from Mirtich. - - // Fill in zero_acc - // -- set to force/torque on the base, zero otherwise - if (m_fixedBase) - { - zeroAccSpatFrc[0].setZero(); - } else - { - //test forces - fromParent.m_rotMat = rot_from_parent[0]; - fromParent.transformRotationOnly(btSpatialForceVector(-force[0],-force[1],-force[2], -force[3],-force[4],-force[5]), zeroAccSpatFrc[0]); - } - for (int i = 0; i < num_links; ++i) - { - zeroAccSpatFrc[i+1].setZero(); - } - - // 'Downward' loop. - // (part of TreeForwardDynamics in Mirtich.) - for (int i = num_links - 1; i >= 0; --i) - { - const int parent = m_links[i].m_parent; - fromParent.m_rotMat = rot_from_parent[i+1]; fromParent.m_trnVec = m_links[i].m_cachedRVector; - - for(int dof = 0; dof < m_links[i].m_dofCount; ++dof) - { - Y[m_links[i].m_dofOffset + dof] = force[6 + m_links[i].m_dofOffset + dof] - - m_links[i].m_axes[dof].dot(zeroAccSpatFrc[i+1]) - ; - } - - btVector3 in_top, in_bottom, out_top, out_bottom; - const btScalar *invDi = &invD[m_links[i].m_dofOffset*m_links[i].m_dofOffset]; - - for(int dof = 0; dof < m_links[i].m_dofCount; ++dof) - { - invD_times_Y[dof] = 0.f; - - for(int dof2 = 0; dof2 < m_links[i].m_dofCount; ++dof2) - { - invD_times_Y[dof] += invDi[dof * m_links[i].m_dofCount + dof2] * Y[m_links[i].m_dofOffset + dof2]; - } - } - - // Zp += pXi * (Zi + hi*Yi/Di) - spatForceVecTemps[0] = zeroAccSpatFrc[i+1]; - - for(int dof = 0; dof < m_links[i].m_dofCount; ++dof) - { - const btSpatialForceVector &hDof = h[m_links[i].m_dofOffset + dof]; - // - spatForceVecTemps[0] += hDof * invD_times_Y[dof]; - } - - - fromParent.transformInverse(spatForceVecTemps[0], spatForceVecTemps[1]); - - zeroAccSpatFrc[parent+1] += spatForceVecTemps[1]; - } - - // ptr to the joint accel part of the output - btScalar * joint_accel = output + 6; - - - // Second 'upward' loop - // (part of TreeForwardDynamics in Mirtich) - - if (m_fixedBase) - { - spatAcc[0].setZero(); - } - else - { - solveImatrix(zeroAccSpatFrc[0], result); - spatAcc[0] = -result; - - } - - // now do the loop over the m_links - for (int i = 0; i < num_links; ++i) - { - const int parent = m_links[i].m_parent; - fromParent.m_rotMat = rot_from_parent[i+1]; fromParent.m_trnVec = m_links[i].m_cachedRVector; - - fromParent.transform(spatAcc[parent+1], spatAcc[i+1]); - - for(int dof = 0; dof < m_links[i].m_dofCount; ++dof) - { - const btSpatialForceVector &hDof = h[m_links[i].m_dofOffset + dof]; - // - Y_minus_hT_a[dof] = Y[m_links[i].m_dofOffset + dof] - spatAcc[i+1].dot(hDof); - } - - const btScalar *invDi = &invD[m_links[i].m_dofOffset*m_links[i].m_dofOffset]; - mulMatrix(const_cast<btScalar*>(invDi), Y_minus_hT_a, m_links[i].m_dofCount, m_links[i].m_dofCount, m_links[i].m_dofCount, 1, &joint_accel[m_links[i].m_dofOffset]); - - for(int dof = 0; dof < m_links[i].m_dofCount; ++dof) - spatAcc[i+1] += m_links[i].m_axes[dof] * joint_accel[m_links[i].m_dofOffset + dof]; - } - - // transform base accelerations back to the world frame. - btVector3 omegadot_out; - omegadot_out = rot_from_parent[0].transpose() * spatAcc[0].getAngular(); - output[0] = omegadot_out[0]; - output[1] = omegadot_out[1]; - output[2] = omegadot_out[2]; - - btVector3 vdot_out; - vdot_out = rot_from_parent[0].transpose() * spatAcc[0].getLinear(); - output[3] = vdot_out[0]; - output[4] = vdot_out[1]; - output[5] = vdot_out[2]; - - ///////////////// - //printf("delta = ["); - //for(int dof = 0; dof < getNumDofs() + 6; ++dof) - // printf("%.2f ", output[dof]); - //printf("]\n"); - ///////////////// -} - - - - -void btMultiBody::stepPositionsMultiDof(btScalar dt, btScalar *pq, btScalar *pqd) -{ - int num_links = getNumLinks(); - // step position by adding dt * velocity - //btVector3 v = getBaseVel(); - //m_basePos += dt * v; - // - btScalar *pBasePos = (pq ? &pq[4] : m_basePos); - btScalar *pBaseVel = (pqd ? &pqd[3] : &m_realBuf[3]); //note: the !pqd case assumes m_realBuf holds with base velocity at 3,4,5 (should be wrapped for safety) - // - pBasePos[0] += dt * pBaseVel[0]; - pBasePos[1] += dt * pBaseVel[1]; - pBasePos[2] += dt * pBaseVel[2]; - - /////////////////////////////// - //local functor for quaternion integration (to avoid error prone redundancy) - struct - { - //"exponential map" based on btTransformUtil::integrateTransform(..) - void operator() (const btVector3 &omega, btQuaternion &quat, bool baseBody, btScalar dt) - { - //baseBody => quat is alias and omega is global coor - //!baseBody => quat is alibi and omega is local coor - - btVector3 axis; - btVector3 angvel; - - if(!baseBody) - angvel = quatRotate(quat, omega); //if quat is not m_baseQuat, it is alibi => ok - else - angvel = omega; - - btScalar fAngle = angvel.length(); - //limit the angular motion - if (fAngle * dt > ANGULAR_MOTION_THRESHOLD) - { - fAngle = btScalar(0.5)*SIMD_HALF_PI / dt; - } - - if ( fAngle < btScalar(0.001) ) - { - // use Taylor's expansions of sync function - axis = angvel*( btScalar(0.5)*dt-(dt*dt*dt)*(btScalar(0.020833333333))*fAngle*fAngle ); - } - else - { - // sync(fAngle) = sin(c*fAngle)/t - axis = angvel*( btSin(btScalar(0.5)*fAngle*dt)/fAngle ); - } - - if(!baseBody) - quat = btQuaternion(axis.x(),axis.y(),axis.z(),btCos( fAngle*dt*btScalar(0.5) )) * quat; - else - quat = quat * btQuaternion(-axis.x(),-axis.y(),-axis.z(),btCos( fAngle*dt*btScalar(0.5) )); - //equivalent to: quat = (btQuaternion(axis.x(),axis.y(),axis.z(),btCos( fAngle*dt*btScalar(0.5) )) * quat.inverse()).inverse(); - - quat.normalize(); - } - } pQuatUpdateFun; - /////////////////////////////// - - //pQuatUpdateFun(getBaseOmega(), m_baseQuat, true, dt); - // - btScalar *pBaseQuat = pq ? pq : m_baseQuat; - btScalar *pBaseOmega = pqd ? pqd : &m_realBuf[0]; //note: the !pqd case assumes m_realBuf starts with base omega (should be wrapped for safety) - // - btQuaternion baseQuat; baseQuat.setValue(pBaseQuat[0], pBaseQuat[1], pBaseQuat[2], pBaseQuat[3]); - btVector3 baseOmega; baseOmega.setValue(pBaseOmega[0], pBaseOmega[1], pBaseOmega[2]); - pQuatUpdateFun(baseOmega, baseQuat, true, dt); - pBaseQuat[0] = baseQuat.x(); - pBaseQuat[1] = baseQuat.y(); - pBaseQuat[2] = baseQuat.z(); - pBaseQuat[3] = baseQuat.w(); - - - //printf("pBaseOmega = %.4f %.4f %.4f\n", pBaseOmega->x(), pBaseOmega->y(), pBaseOmega->z()); - //printf("pBaseVel = %.4f %.4f %.4f\n", pBaseVel->x(), pBaseVel->y(), pBaseVel->z()); - //printf("baseQuat = %.4f %.4f %.4f %.4f\n", pBaseQuat->x(), pBaseQuat->y(), pBaseQuat->z(), pBaseQuat->w()); - - if(pq) - pq += 7; - if(pqd) - pqd += 6; - - // Finally we can update m_jointPos for each of the m_links - for (int i = 0; i < num_links; ++i) - { - btScalar *pJointPos = (pq ? pq : &m_links[i].m_jointPos[0]); - btScalar *pJointVel = (pqd ? pqd : getJointVelMultiDof(i)); - - switch(m_links[i].m_jointType) - { - case btMultibodyLink::ePrismatic: - case btMultibodyLink::eRevolute: - { - btScalar jointVel = pJointVel[0]; - pJointPos[0] += dt * jointVel; - break; - } - case btMultibodyLink::eSpherical: - { - btVector3 jointVel; jointVel.setValue(pJointVel[0], pJointVel[1], pJointVel[2]); - btQuaternion jointOri; jointOri.setValue(pJointPos[0], pJointPos[1], pJointPos[2], pJointPos[3]); - pQuatUpdateFun(jointVel, jointOri, false, dt); - pJointPos[0] = jointOri.x(); pJointPos[1] = jointOri.y(); pJointPos[2] = jointOri.z(); pJointPos[3] = jointOri.w(); - break; - } - case btMultibodyLink::ePlanar: - { - pJointPos[0] += dt * getJointVelMultiDof(i)[0]; - - btVector3 q0_coors_qd1qd2 = getJointVelMultiDof(i)[1] * m_links[i].getAxisBottom(1) + getJointVelMultiDof(i)[2] * m_links[i].getAxisBottom(2); - btVector3 no_q0_coors_qd1qd2 = quatRotate(btQuaternion(m_links[i].getAxisTop(0), pJointPos[0]), q0_coors_qd1qd2); - pJointPos[1] += m_links[i].getAxisBottom(1).dot(no_q0_coors_qd1qd2) * dt; - pJointPos[2] += m_links[i].getAxisBottom(2).dot(no_q0_coors_qd1qd2) * dt; - - break; - } - default: - { - } - - } - - m_links[i].updateCacheMultiDof(pq); - - if(pq) - pq += m_links[i].m_posVarCount; - if(pqd) - pqd += m_links[i].m_dofCount; - } -} - -void btMultiBody::fillConstraintJacobianMultiDof(int link, - const btVector3 &contact_point, - const btVector3 &normal_ang, - const btVector3 &normal_lin, - btScalar *jac, - btAlignedObjectArray<btScalar> &scratch_r, - btAlignedObjectArray<btVector3> &scratch_v, - btAlignedObjectArray<btMatrix3x3> &scratch_m) const -{ - // temporary space - int num_links = getNumLinks(); - int m_dofCount = getNumDofs(); - scratch_v.resize(3*num_links + 3); //(num_links + base) offsets + (num_links + base) normals_lin + (num_links + base) normals_ang - scratch_m.resize(num_links + 1); - - btVector3 * v_ptr = &scratch_v[0]; - btVector3 * p_minus_com_local = v_ptr; v_ptr += num_links + 1; - btVector3 * n_local_lin = v_ptr; v_ptr += num_links + 1; - btVector3 * n_local_ang = v_ptr; v_ptr += num_links + 1; - btAssert(v_ptr - &scratch_v[0] == scratch_v.size()); - - scratch_r.resize(m_dofCount); - btScalar * results = m_dofCount > 0 ? &scratch_r[0] : 0; - - btMatrix3x3 * rot_from_world = &scratch_m[0]; - - const btVector3 p_minus_com_world = contact_point - m_basePos; - const btVector3 &normal_lin_world = normal_lin; //convenience - const btVector3 &normal_ang_world = normal_ang; - - rot_from_world[0] = btMatrix3x3(m_baseQuat); - - // omega coeffients first. - btVector3 omega_coeffs_world; - omega_coeffs_world = p_minus_com_world.cross(normal_lin_world); - jac[0] = omega_coeffs_world[0] + normal_ang_world[0]; - jac[1] = omega_coeffs_world[1] + normal_ang_world[1]; - jac[2] = omega_coeffs_world[2] + normal_ang_world[2]; - // then v coefficients - jac[3] = normal_lin_world[0]; - jac[4] = normal_lin_world[1]; - jac[5] = normal_lin_world[2]; - - //create link-local versions of p_minus_com and normal - p_minus_com_local[0] = rot_from_world[0] * p_minus_com_world; - n_local_lin[0] = rot_from_world[0] * normal_lin_world; - n_local_ang[0] = rot_from_world[0] * normal_ang_world; - - // Set remaining jac values to zero for now. - for (int i = 6; i < 6 + m_dofCount; ++i) - { - jac[i] = 0; - } - - // Qdot coefficients, if necessary. - if (num_links > 0 && link > -1) { - - // TODO: speed this up -- don't calculate for m_links we don't need. - // (Also, we are making 3 separate calls to this function, for the normal & the 2 friction directions, - // which is resulting in repeated work being done...) - - // calculate required normals & positions in the local frames. - for (int i = 0; i < num_links; ++i) { - - // transform to local frame - const int parent = m_links[i].m_parent; - const btMatrix3x3 mtx(m_links[i].m_cachedRotParentToThis); - rot_from_world[i+1] = mtx * rot_from_world[parent+1]; - - n_local_lin[i+1] = mtx * n_local_lin[parent+1]; - n_local_ang[i+1] = mtx * n_local_ang[parent+1]; - p_minus_com_local[i+1] = mtx * p_minus_com_local[parent+1] - m_links[i].m_cachedRVector; - - // calculate the jacobian entry - switch(m_links[i].m_jointType) - { - case btMultibodyLink::eRevolute: - { - results[m_links[i].m_dofOffset] = n_local_lin[i+1].dot(m_links[i].getAxisTop(0).cross(p_minus_com_local[i+1]) + m_links[i].getAxisBottom(0)); - results[m_links[i].m_dofOffset] += n_local_ang[i+1].dot(m_links[i].getAxisTop(0)); - break; - } - case btMultibodyLink::ePrismatic: - { - results[m_links[i].m_dofOffset] = n_local_lin[i+1].dot(m_links[i].getAxisBottom(0)); - break; - } - case btMultibodyLink::eSpherical: - { - results[m_links[i].m_dofOffset + 0] = n_local_lin[i+1].dot(m_links[i].getAxisTop(0).cross(p_minus_com_local[i+1]) + m_links[i].getAxisBottom(0)); - results[m_links[i].m_dofOffset + 1] = n_local_lin[i+1].dot(m_links[i].getAxisTop(1).cross(p_minus_com_local[i+1]) + m_links[i].getAxisBottom(1)); - results[m_links[i].m_dofOffset + 2] = n_local_lin[i+1].dot(m_links[i].getAxisTop(2).cross(p_minus_com_local[i+1]) + m_links[i].getAxisBottom(2)); - - results[m_links[i].m_dofOffset + 0] += n_local_ang[i+1].dot(m_links[i].getAxisTop(0)); - results[m_links[i].m_dofOffset + 1] += n_local_ang[i+1].dot(m_links[i].getAxisTop(1)); - results[m_links[i].m_dofOffset + 2] += n_local_ang[i+1].dot(m_links[i].getAxisTop(2)); - - break; - } - case btMultibodyLink::ePlanar: - { - results[m_links[i].m_dofOffset + 0] = n_local_lin[i+1].dot(m_links[i].getAxisTop(0).cross(p_minus_com_local[i+1]));// + m_links[i].getAxisBottom(0)); - results[m_links[i].m_dofOffset + 1] = n_local_lin[i+1].dot(m_links[i].getAxisBottom(1)); - results[m_links[i].m_dofOffset + 2] = n_local_lin[i+1].dot(m_links[i].getAxisBottom(2)); - - break; - } - default: - { - } - } - - } - - // Now copy through to output. - //printf("jac[%d] = ", link); - while (link != -1) - { - for(int dof = 0; dof < m_links[link].m_dofCount; ++dof) - { - jac[6 + m_links[link].m_dofOffset + dof] = results[m_links[link].m_dofOffset + dof]; - //printf("%.2f\t", jac[6 + m_links[link].m_dofOffset + dof]); - } - - link = m_links[link].m_parent; - } - //printf("]\n"); - } -} - - -void btMultiBody::wakeUp() -{ - m_awake = true; -} - -void btMultiBody::goToSleep() -{ - m_awake = false; -} - -void btMultiBody::checkMotionAndSleepIfRequired(btScalar timestep) -{ - extern bool gDisableDeactivation; - if (!m_canSleep || gDisableDeactivation) - { - m_awake = true; - m_sleepTimer = 0; - return; - } - - // motion is computed as omega^2 + v^2 + (sum of squares of joint velocities) - btScalar motion = 0; - { - for (int i = 0; i < 6 + m_dofCount; ++i) - motion += m_realBuf[i] * m_realBuf[i]; - } - - - if (motion < SLEEP_EPSILON) { - m_sleepTimer += timestep; - if (m_sleepTimer > SLEEP_TIMEOUT) { - goToSleep(); - } - } else { - m_sleepTimer = 0; - if (!m_awake) - wakeUp(); - } -} - - -void btMultiBody::forwardKinematics(btAlignedObjectArray<btQuaternion>& world_to_local,btAlignedObjectArray<btVector3>& local_origin) -{ - - int num_links = getNumLinks(); - - // Cached 3x3 rotation matrices from parent frame to this frame. - btMatrix3x3* rot_from_parent =(btMatrix3x3 *) &m_matrixBuf[0]; - - rot_from_parent[0] = btMatrix3x3(m_baseQuat); //m_baseQuat assumed to be alias!? - - for (int i = 0; i < num_links; ++i) - { - rot_from_parent[i+1] = btMatrix3x3(m_links[i].m_cachedRotParentToThis); - } - - int nLinks = getNumLinks(); - ///base + num m_links - world_to_local.resize(nLinks+1); - local_origin.resize(nLinks+1); - - world_to_local[0] = getWorldToBaseRot(); - local_origin[0] = getBasePos(); - - for (int k=0;k<getNumLinks();k++) - { - const int parent = getParent(k); - world_to_local[k+1] = getParentToLocalRot(k) * world_to_local[parent+1]; - local_origin[k+1] = local_origin[parent+1] + (quatRotate(world_to_local[k+1].inverse() , getRVector(k))); - } - - for (int link=0;link<getNumLinks();link++) - { - int index = link+1; - - btVector3 posr = local_origin[index]; - btScalar quat[4]={-world_to_local[index].x(),-world_to_local[index].y(),-world_to_local[index].z(),world_to_local[index].w()}; - btTransform tr; - tr.setIdentity(); - tr.setOrigin(posr); - tr.setRotation(btQuaternion(quat[0],quat[1],quat[2],quat[3])); - getLink(link).m_cachedWorldTransform = tr; - - } - -} - -void btMultiBody::updateCollisionObjectWorldTransforms(btAlignedObjectArray<btQuaternion>& world_to_local,btAlignedObjectArray<btVector3>& local_origin) -{ - world_to_local.resize(getNumLinks()+1); - local_origin.resize(getNumLinks()+1); - - world_to_local[0] = getWorldToBaseRot(); - local_origin[0] = getBasePos(); - - if (getBaseCollider()) - { - btVector3 posr = local_origin[0]; - // float pos[4]={posr.x(),posr.y(),posr.z(),1}; - btScalar quat[4]={-world_to_local[0].x(),-world_to_local[0].y(),-world_to_local[0].z(),world_to_local[0].w()}; - btTransform tr; - tr.setIdentity(); - tr.setOrigin(posr); - tr.setRotation(btQuaternion(quat[0],quat[1],quat[2],quat[3])); - - getBaseCollider()->setWorldTransform(tr); - - } - - for (int k=0;k<getNumLinks();k++) - { - const int parent = getParent(k); - world_to_local[k+1] = getParentToLocalRot(k) * world_to_local[parent+1]; - local_origin[k+1] = local_origin[parent+1] + (quatRotate(world_to_local[k+1].inverse() , getRVector(k))); - } - - - for (int m=0;m<getNumLinks();m++) - { - btMultiBodyLinkCollider* col = getLink(m).m_collider; - if (col) - { - int link = col->m_link; - btAssert(link == m); - - int index = link+1; - - btVector3 posr = local_origin[index]; - // float pos[4]={posr.x(),posr.y(),posr.z(),1}; - btScalar quat[4]={-world_to_local[index].x(),-world_to_local[index].y(),-world_to_local[index].z(),world_to_local[index].w()}; - btTransform tr; - tr.setIdentity(); - tr.setOrigin(posr); - tr.setRotation(btQuaternion(quat[0],quat[1],quat[2],quat[3])); - - col->setWorldTransform(tr); - } - } -} - -int btMultiBody::calculateSerializeBufferSize() const -{ - int sz = sizeof(btMultiBodyData); - return sz; -} - - ///fills the dataBuffer and returns the struct name (and 0 on failure) -const char* btMultiBody::serialize(void* dataBuffer, class btSerializer* serializer) const -{ - btMultiBodyData* mbd = (btMultiBodyData*) dataBuffer; - getBaseWorldTransform().serialize(mbd->m_baseWorldTransform); - mbd->m_baseMass = this->getBaseMass(); - getBaseInertia().serialize(mbd->m_baseInertia); - { - char* name = (char*) serializer->findNameForPointer(m_baseName); - mbd->m_baseName = (char*)serializer->getUniquePointer(name); - if (mbd->m_baseName) - { - serializer->serializeName(name); - } - } - mbd->m_numLinks = this->getNumLinks(); - if (mbd->m_numLinks) - { - int sz = sizeof(btMultiBodyLinkData); - int numElem = mbd->m_numLinks; - btChunk* chunk = serializer->allocate(sz,numElem); - btMultiBodyLinkData* memPtr = (btMultiBodyLinkData*)chunk->m_oldPtr; - for (int i=0;i<numElem;i++,memPtr++) - { - - memPtr->m_jointType = getLink(i).m_jointType; - memPtr->m_dofCount = getLink(i).m_dofCount; - memPtr->m_posVarCount = getLink(i).m_posVarCount; - - getLink(i).m_inertiaLocal.serialize(memPtr->m_linkInertia); - memPtr->m_linkMass = getLink(i).m_mass; - memPtr->m_parentIndex = getLink(i).m_parent; - memPtr->m_jointDamping = getLink(i).m_jointDamping; - memPtr->m_jointFriction = getLink(i).m_jointFriction; - memPtr->m_jointLowerLimit = getLink(i).m_jointLowerLimit; - memPtr->m_jointUpperLimit = getLink(i).m_jointUpperLimit; - memPtr->m_jointMaxForce = getLink(i).m_jointMaxForce; - memPtr->m_jointMaxVelocity = getLink(i).m_jointMaxVelocity; - - getLink(i).m_eVector.serialize(memPtr->m_parentComToThisComOffset); - getLink(i).m_dVector.serialize(memPtr->m_thisPivotToThisComOffset); - getLink(i).m_zeroRotParentToThis.serialize(memPtr->m_zeroRotParentToThis); - btAssert(memPtr->m_dofCount<=3); - for (int dof = 0;dof<getLink(i).m_dofCount;dof++) - { - getLink(i).getAxisBottom(dof).serialize(memPtr->m_jointAxisBottom[dof]); - getLink(i).getAxisTop(dof).serialize(memPtr->m_jointAxisTop[dof]); - - memPtr->m_jointTorque[dof] = getLink(i).m_jointTorque[dof]; - memPtr->m_jointVel[dof] = getJointVelMultiDof(i)[dof]; - - } - int numPosVar = getLink(i).m_posVarCount; - for (int posvar = 0; posvar < numPosVar;posvar++) - { - memPtr->m_jointPos[posvar] = getLink(i).m_jointPos[posvar]; - } - - - { - char* name = (char*) serializer->findNameForPointer(m_links[i].m_linkName); - memPtr->m_linkName = (char*)serializer->getUniquePointer(name); - if (memPtr->m_linkName) - { - serializer->serializeName(name); - } - } - { - char* name = (char*) serializer->findNameForPointer(m_links[i].m_jointName); - memPtr->m_jointName = (char*)serializer->getUniquePointer(name); - if (memPtr->m_jointName) - { - serializer->serializeName(name); - } - } - memPtr->m_linkCollider = (btCollisionObjectData*)serializer->getUniquePointer(getLink(i).m_collider); - - } - serializer->finalizeChunk(chunk,btMultiBodyLinkDataName,BT_ARRAY_CODE,(void*) &m_links[0]); - } - mbd->m_links = mbd->m_numLinks? (btMultiBodyLinkData*) serializer->getUniquePointer((void*)&m_links[0]):0; - - // Fill padding with zeros to appease msan. -#ifdef BT_USE_DOUBLE_PRECISION - memset(mbd->m_padding, 0, sizeof(mbd->m_padding)); -#endif - - return btMultiBodyDataName; -} diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBody.h b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBody.h deleted file mode 100644 index 655165ac18..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBody.h +++ /dev/null @@ -1,814 +0,0 @@ -/* - * PURPOSE: - * Class representing an articulated rigid body. Stores the body's - * current state, allows forces and torques to be set, handles - * timestepping and implements Featherstone's algorithm. - * - * COPYRIGHT: - * Copyright (C) Stephen Thompson, <stephen@solarflare.org.uk>, 2011-2013 - * Portions written By Erwin Coumans: connection to LCP solver, various multibody constraints, replacing Eigen math library by Bullet LinearMath and a dedicated 6x6 matrix inverse (solveImatrix) - * Portions written By Jakub Stepien: support for multi-DOF constraints, introduction of spatial algebra and several other improvements - - This software is provided 'as-is', without any express or implied warranty. - In no event will the authors be held liable for any damages arising from the use of this software. - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it freely, - subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. - - */ - - -#ifndef BT_MULTIBODY_H -#define BT_MULTIBODY_H - -#include "LinearMath/btScalar.h" -#include "LinearMath/btVector3.h" -#include "LinearMath/btQuaternion.h" -#include "LinearMath/btMatrix3x3.h" -#include "LinearMath/btAlignedObjectArray.h" - - -///serialization data, don't change them if you are not familiar with the details of the serialization mechanisms -#ifdef BT_USE_DOUBLE_PRECISION - #define btMultiBodyData btMultiBodyDoubleData - #define btMultiBodyDataName "btMultiBodyDoubleData" - #define btMultiBodyLinkData btMultiBodyLinkDoubleData - #define btMultiBodyLinkDataName "btMultiBodyLinkDoubleData" -#else - #define btMultiBodyData btMultiBodyFloatData - #define btMultiBodyDataName "btMultiBodyFloatData" - #define btMultiBodyLinkData btMultiBodyLinkFloatData - #define btMultiBodyLinkDataName "btMultiBodyLinkFloatData" -#endif //BT_USE_DOUBLE_PRECISION - -#include "btMultiBodyLink.h" -class btMultiBodyLinkCollider; - -ATTRIBUTE_ALIGNED16(class) btMultiBody -{ -public: - - - BT_DECLARE_ALIGNED_ALLOCATOR(); - - // - // initialization - // - - btMultiBody(int n_links, // NOT including the base - btScalar mass, // mass of base - const btVector3 &inertia, // inertia of base, in base frame; assumed diagonal - bool fixedBase, // whether the base is fixed (true) or can move (false) - bool canSleep, bool deprecatedMultiDof=true); - - - virtual ~btMultiBody(); - - //note: fixed link collision with parent is always disabled - void setupFixed(int linkIndex, - btScalar mass, - const btVector3 &inertia, - int parent, - const btQuaternion &rotParentToThis, - const btVector3 &parentComToThisPivotOffset, - const btVector3 &thisPivotToThisComOffset, bool deprecatedDisableParentCollision=true); - - - void setupPrismatic(int i, - btScalar mass, - const btVector3 &inertia, - int parent, - const btQuaternion &rotParentToThis, - const btVector3 &jointAxis, - const btVector3 &parentComToThisPivotOffset, - const btVector3 &thisPivotToThisComOffset, - bool disableParentCollision); - - void setupRevolute(int linkIndex, // 0 to num_links-1 - btScalar mass, - const btVector3 &inertia, - int parentIndex, - const btQuaternion &rotParentToThis, // rotate points in parent frame to this frame, when q = 0 - const btVector3 &jointAxis, // in my frame - const btVector3 &parentComToThisPivotOffset, // vector from parent COM to joint axis, in PARENT frame - const btVector3 &thisPivotToThisComOffset, // vector from joint axis to my COM, in MY frame - bool disableParentCollision=false); - - void setupSpherical(int linkIndex, // 0 to num_links-1 - btScalar mass, - const btVector3 &inertia, - int parent, - const btQuaternion &rotParentToThis, // rotate points in parent frame to this frame, when q = 0 - const btVector3 &parentComToThisPivotOffset, // vector from parent COM to joint axis, in PARENT frame - const btVector3 &thisPivotToThisComOffset, // vector from joint axis to my COM, in MY frame - bool disableParentCollision=false); - - void setupPlanar(int i, // 0 to num_links-1 - btScalar mass, - const btVector3 &inertia, - int parent, - const btQuaternion &rotParentToThis, // rotate points in parent frame to this frame, when q = 0 - const btVector3 &rotationAxis, - const btVector3 &parentComToThisComOffset, // vector from parent COM to this COM, in PARENT frame - bool disableParentCollision=false); - - const btMultibodyLink& getLink(int index) const - { - return m_links[index]; - } - - btMultibodyLink& getLink(int index) - { - return m_links[index]; - } - - - void setBaseCollider(btMultiBodyLinkCollider* collider)//collider can be NULL to disable collision for the base - { - m_baseCollider = collider; - } - const btMultiBodyLinkCollider* getBaseCollider() const - { - return m_baseCollider; - } - btMultiBodyLinkCollider* getBaseCollider() - { - return m_baseCollider; - } - - btMultiBodyLinkCollider* getLinkCollider(int index) - { - if (index >= 0 && index < getNumLinks()) - { - return getLink(index).m_collider; - } - return 0; - } - - // - // get parent - // input: link num from 0 to num_links-1 - // output: link num from 0 to num_links-1, OR -1 to mean the base. - // - int getParent(int link_num) const; - - - // - // get number of m_links, masses, moments of inertia - // - - int getNumLinks() const { return m_links.size(); } - int getNumDofs() const { return m_dofCount; } - int getNumPosVars() const { return m_posVarCnt; } - btScalar getBaseMass() const { return m_baseMass; } - const btVector3 & getBaseInertia() const { return m_baseInertia; } - btScalar getLinkMass(int i) const; - const btVector3 & getLinkInertia(int i) const; - - - - // - // change mass (incomplete: can only change base mass and inertia at present) - // - - void setBaseMass(btScalar mass) { m_baseMass = mass; } - void setBaseInertia(const btVector3 &inertia) { m_baseInertia = inertia; } - - - // - // get/set pos/vel/rot/omega for the base link - // - - const btVector3 & getBasePos() const { return m_basePos; } // in world frame - const btVector3 getBaseVel() const - { - return btVector3(m_realBuf[3],m_realBuf[4],m_realBuf[5]); - } // in world frame - const btQuaternion & getWorldToBaseRot() const - { - return m_baseQuat; - } // rotates world vectors into base frame - btVector3 getBaseOmega() const { return btVector3(m_realBuf[0],m_realBuf[1],m_realBuf[2]); } // in world frame - - void setBasePos(const btVector3 &pos) - { - m_basePos = pos; - } - - void setBaseWorldTransform(const btTransform& tr) - { - setBasePos(tr.getOrigin()); - setWorldToBaseRot(tr.getRotation().inverse()); - - } - - btTransform getBaseWorldTransform() const - { - btTransform tr; - tr.setOrigin(getBasePos()); - tr.setRotation(getWorldToBaseRot().inverse()); - return tr; - } - - void setBaseVel(const btVector3 &vel) - { - - m_realBuf[3]=vel[0]; m_realBuf[4]=vel[1]; m_realBuf[5]=vel[2]; - } - void setWorldToBaseRot(const btQuaternion &rot) - { - m_baseQuat = rot; //m_baseQuat asumed to ba alias!? - } - void setBaseOmega(const btVector3 &omega) - { - m_realBuf[0]=omega[0]; - m_realBuf[1]=omega[1]; - m_realBuf[2]=omega[2]; - } - - - // - // get/set pos/vel for child m_links (i = 0 to num_links-1) - // - - btScalar getJointPos(int i) const; - btScalar getJointVel(int i) const; - - btScalar * getJointVelMultiDof(int i); - btScalar * getJointPosMultiDof(int i); - - const btScalar * getJointVelMultiDof(int i) const ; - const btScalar * getJointPosMultiDof(int i) const ; - - void setJointPos(int i, btScalar q); - void setJointVel(int i, btScalar qdot); - void setJointPosMultiDof(int i, btScalar *q); - void setJointVelMultiDof(int i, btScalar *qdot); - - - - // - // direct access to velocities as a vector of 6 + num_links elements. - // (omega first, then v, then joint velocities.) - // - const btScalar * getVelocityVector() const - { - return &m_realBuf[0]; - } -/* btScalar * getVelocityVector() - { - return &real_buf[0]; - } - */ - - // - // get the frames of reference (positions and orientations) of the child m_links - // (i = 0 to num_links-1) - // - - const btVector3 & getRVector(int i) const; // vector from COM(parent(i)) to COM(i), in frame i's coords - const btQuaternion & getParentToLocalRot(int i) const; // rotates vectors in frame parent(i) to vectors in frame i. - - - // - // transform vectors in local frame of link i to world frame (or vice versa) - // - btVector3 localPosToWorld(int i, const btVector3 &vec) const; - btVector3 localDirToWorld(int i, const btVector3 &vec) const; - btVector3 worldPosToLocal(int i, const btVector3 &vec) const; - btVector3 worldDirToLocal(int i, const btVector3 &vec) const; - - // - // transform a frame in local coordinate to a frame in world coordinate - // - btMatrix3x3 localFrameToWorld(int i, const btMatrix3x3 &mat) const; - - // - // calculate kinetic energy and angular momentum - // useful for debugging. - // - - btScalar getKineticEnergy() const; - btVector3 getAngularMomentum() const; - - - // - // set external forces and torques. Note all external forces/torques are given in the WORLD frame. - // - - void clearForcesAndTorques(); - void clearConstraintForces(); - - void clearVelocities(); - - void addBaseForce(const btVector3 &f) - { - m_baseForce += f; - } - void addBaseTorque(const btVector3 &t) { m_baseTorque += t; } - void addLinkForce(int i, const btVector3 &f); - void addLinkTorque(int i, const btVector3 &t); - - void addBaseConstraintForce(const btVector3 &f) - { - m_baseConstraintForce += f; - } - void addBaseConstraintTorque(const btVector3 &t) { m_baseConstraintTorque += t; } - void addLinkConstraintForce(int i, const btVector3 &f); - void addLinkConstraintTorque(int i, const btVector3 &t); - - -void addJointTorque(int i, btScalar Q); - void addJointTorqueMultiDof(int i, int dof, btScalar Q); - void addJointTorqueMultiDof(int i, const btScalar *Q); - - const btVector3 & getBaseForce() const { return m_baseForce; } - const btVector3 & getBaseTorque() const { return m_baseTorque; } - const btVector3 & getLinkForce(int i) const; - const btVector3 & getLinkTorque(int i) const; - btScalar getJointTorque(int i) const; - btScalar * getJointTorqueMultiDof(int i); - - - // - // dynamics routines. - // - - // timestep the velocities (given the external forces/torques set using addBaseForce etc). - // also sets up caches for calcAccelerationDeltas. - // - // Note: the caller must provide three vectors which are used as - // temporary scratch space. The idea here is to reduce dynamic - // memory allocation: the same scratch vectors can be re-used - // again and again for different Multibodies, instead of each - // btMultiBody allocating (and then deallocating) their own - // individual scratch buffers. This gives a considerable speed - // improvement, at least on Windows (where dynamic memory - // allocation appears to be fairly slow). - // - - - void computeAccelerationsArticulatedBodyAlgorithmMultiDof(btScalar dt, - btAlignedObjectArray<btScalar> &scratch_r, - btAlignedObjectArray<btVector3> &scratch_v, - btAlignedObjectArray<btMatrix3x3> &scratch_m, - bool isConstraintPass=false - ); - -///stepVelocitiesMultiDof is deprecated, use computeAccelerationsArticulatedBodyAlgorithmMultiDof instead - void stepVelocitiesMultiDof(btScalar dt, - btAlignedObjectArray<btScalar> &scratch_r, - btAlignedObjectArray<btVector3> &scratch_v, - btAlignedObjectArray<btMatrix3x3> &scratch_m, - bool isConstraintPass=false) - { - computeAccelerationsArticulatedBodyAlgorithmMultiDof(dt,scratch_r,scratch_v,scratch_m,isConstraintPass); - } - - // calcAccelerationDeltasMultiDof - // input: force vector (in same format as jacobian, i.e.: - // 3 torque values, 3 force values, num_links joint torque values) - // output: 3 omegadot values, 3 vdot values, num_links q_double_dot values - // (existing contents of output array are replaced) - // calcAccelerationDeltasMultiDof must have been called first. - void calcAccelerationDeltasMultiDof(const btScalar *force, btScalar *output, - btAlignedObjectArray<btScalar> &scratch_r, - btAlignedObjectArray<btVector3> &scratch_v) const; - - - void applyDeltaVeeMultiDof2(const btScalar * delta_vee, btScalar multiplier) - { - for (int dof = 0; dof < 6 + getNumDofs(); ++dof) - { - m_deltaV[dof] += delta_vee[dof] * multiplier; - } - } - void processDeltaVeeMultiDof2() - { - applyDeltaVeeMultiDof(&m_deltaV[0],1); - - for (int dof = 0; dof < 6 + getNumDofs(); ++dof) - { - m_deltaV[dof] = 0.f; - } - } - - void applyDeltaVeeMultiDof(const btScalar * delta_vee, btScalar multiplier) - { - //for (int dof = 0; dof < 6 + getNumDofs(); ++dof) - // printf("%.4f ", delta_vee[dof]*multiplier); - //printf("\n"); - - //btScalar sum = 0; - //for (int dof = 0; dof < 6 + getNumDofs(); ++dof) - //{ - // sum += delta_vee[dof]*multiplier*delta_vee[dof]*multiplier; - //} - //btScalar l = btSqrt(sum); - - //if (l>m_maxAppliedImpulse) - //{ - // multiplier *= m_maxAppliedImpulse/l; - //} - - for (int dof = 0; dof < 6 + getNumDofs(); ++dof) - { - m_realBuf[dof] += delta_vee[dof] * multiplier; - btClamp(m_realBuf[dof],-m_maxCoordinateVelocity,m_maxCoordinateVelocity); - } - } - - - - // timestep the positions (given current velocities). - void stepPositionsMultiDof(btScalar dt, btScalar *pq = 0, btScalar *pqd = 0); - - - // - // contacts - // - - // This routine fills out a contact constraint jacobian for this body. - // the 'normal' supplied must be -n for body1 or +n for body2 of the contact. - // 'normal' & 'contact_point' are both given in world coordinates. - - void fillContactJacobianMultiDof(int link, - const btVector3 &contact_point, - const btVector3 &normal, - btScalar *jac, - btAlignedObjectArray<btScalar> &scratch_r, - btAlignedObjectArray<btVector3> &scratch_v, - btAlignedObjectArray<btMatrix3x3> &scratch_m) const { fillConstraintJacobianMultiDof(link, contact_point, btVector3(0, 0, 0), normal, jac, scratch_r, scratch_v, scratch_m); } - - //a more general version of fillContactJacobianMultiDof which does not assume.. - //.. that the constraint in question is contact or, to be more precise, constrains linear velocity only - void fillConstraintJacobianMultiDof(int link, - const btVector3 &contact_point, - const btVector3 &normal_ang, - const btVector3 &normal_lin, - btScalar *jac, - btAlignedObjectArray<btScalar> &scratch_r, - btAlignedObjectArray<btVector3> &scratch_v, - btAlignedObjectArray<btMatrix3x3> &scratch_m) const; - - - // - // sleeping - // - void setCanSleep(bool canSleep) - { - m_canSleep = canSleep; - } - - bool getCanSleep()const - { - return m_canSleep; - } - - bool isAwake() const { return m_awake; } - void wakeUp(); - void goToSleep(); - void checkMotionAndSleepIfRequired(btScalar timestep); - - bool hasFixedBase() const - { - return m_fixedBase; - } - - int getCompanionId() const - { - return m_companionId; - } - void setCompanionId(int id) - { - //printf("for %p setCompanionId(%d)\n",this, id); - m_companionId = id; - } - - void setNumLinks(int numLinks)//careful: when changing the number of m_links, make sure to re-initialize or update existing m_links - { - m_links.resize(numLinks); - } - - btScalar getLinearDamping() const - { - return m_linearDamping; - } - void setLinearDamping( btScalar damp) - { - m_linearDamping = damp; - } - btScalar getAngularDamping() const - { - return m_angularDamping; - } - void setAngularDamping( btScalar damp) - { - m_angularDamping = damp; - } - - bool getUseGyroTerm() const - { - return m_useGyroTerm; - } - void setUseGyroTerm(bool useGyro) - { - m_useGyroTerm = useGyro; - } - btScalar getMaxCoordinateVelocity() const - { - return m_maxCoordinateVelocity ; - } - void setMaxCoordinateVelocity(btScalar maxVel) - { - m_maxCoordinateVelocity = maxVel; - } - - btScalar getMaxAppliedImpulse() const - { - return m_maxAppliedImpulse; - } - void setMaxAppliedImpulse(btScalar maxImp) - { - m_maxAppliedImpulse = maxImp; - } - void setHasSelfCollision(bool hasSelfCollision) - { - m_hasSelfCollision = hasSelfCollision; - } - bool hasSelfCollision() const - { - return m_hasSelfCollision; - } - - - void finalizeMultiDof(); - - void useRK4Integration(bool use) { m_useRK4 = use; } - bool isUsingRK4Integration() const { return m_useRK4; } - void useGlobalVelocities(bool use) { m_useGlobalVelocities = use; } - bool isUsingGlobalVelocities() const { return m_useGlobalVelocities; } - - bool isPosUpdated() const - { - return __posUpdated; - } - void setPosUpdated(bool updated) - { - __posUpdated = updated; - } - - //internalNeedsJointFeedback is for internal use only - bool internalNeedsJointFeedback() const - { - return m_internalNeedsJointFeedback; - } - void forwardKinematics(btAlignedObjectArray<btQuaternion>& scratch_q,btAlignedObjectArray<btVector3>& scratch_m); - - void compTreeLinkVelocities(btVector3 *omega, btVector3 *vel) const; - - void updateCollisionObjectWorldTransforms(btAlignedObjectArray<btQuaternion>& scratch_q,btAlignedObjectArray<btVector3>& scratch_m); - - virtual int calculateSerializeBufferSize() const; - - ///fills the dataBuffer and returns the struct name (and 0 on failure) - virtual const char* serialize(void* dataBuffer, class btSerializer* serializer) const; - - const char* getBaseName() const - { - return m_baseName; - } - ///memory of setBaseName needs to be manager by user - void setBaseName(const char* name) - { - m_baseName = name; - } - - ///users can point to their objects, userPointer is not used by Bullet - void* getUserPointer() const - { - return m_userObjectPointer; - } - - int getUserIndex() const - { - return m_userIndex; - } - - int getUserIndex2() const - { - return m_userIndex2; - } - ///users can point to their objects, userPointer is not used by Bullet - void setUserPointer(void* userPointer) - { - m_userObjectPointer = userPointer; - } - - ///users can point to their objects, userPointer is not used by Bullet - void setUserIndex(int index) - { - m_userIndex = index; - } - - void setUserIndex2(int index) - { - m_userIndex2 = index; - } - -private: - btMultiBody(const btMultiBody &); // not implemented - void operator=(const btMultiBody &); // not implemented - - - void solveImatrix(const btVector3& rhs_top, const btVector3& rhs_bot, btScalar result[6]) const; - void solveImatrix(const btSpatialForceVector &rhs, btSpatialMotionVector &result) const; - - void updateLinksDofOffsets() - { - int dofOffset = 0, cfgOffset = 0; - for(int bidx = 0; bidx < m_links.size(); ++bidx) - { - m_links[bidx].m_dofOffset = dofOffset; m_links[bidx].m_cfgOffset = cfgOffset; - dofOffset += m_links[bidx].m_dofCount; cfgOffset += m_links[bidx].m_posVarCount; - } - } - - void mulMatrix(btScalar *pA, btScalar *pB, int rowsA, int colsA, int rowsB, int colsB, btScalar *pC) const; - - -private: - - btMultiBodyLinkCollider* m_baseCollider;//can be NULL - const char* m_baseName;//memory needs to be manager by user! - - btVector3 m_basePos; // position of COM of base (world frame) - btQuaternion m_baseQuat; // rotates world points into base frame - - btScalar m_baseMass; // mass of the base - btVector3 m_baseInertia; // inertia of the base (in local frame; diagonal) - - btVector3 m_baseForce; // external force applied to base. World frame. - btVector3 m_baseTorque; // external torque applied to base. World frame. - - btVector3 m_baseConstraintForce; // external force applied to base. World frame. - btVector3 m_baseConstraintTorque; // external torque applied to base. World frame. - - btAlignedObjectArray<btMultibodyLink> m_links; // array of m_links, excluding the base. index from 0 to num_links-1. - - - // - // realBuf: - // offset size array - // 0 6 + num_links v (base_omega; base_vel; joint_vels) MULTIDOF [sysdof x sysdof for D matrices (TOO MUCH!) + pos_delta which is sys-cfg sized] - // 6+num_links num_links D - // - // vectorBuf: - // offset size array - // 0 num_links h_top - // num_links num_links h_bottom - // - // matrixBuf: - // offset size array - // 0 num_links+1 rot_from_parent - // - btAlignedObjectArray<btScalar> m_deltaV; - btAlignedObjectArray<btScalar> m_realBuf; - btAlignedObjectArray<btVector3> m_vectorBuf; - btAlignedObjectArray<btMatrix3x3> m_matrixBuf; - - - btMatrix3x3 m_cachedInertiaTopLeft; - btMatrix3x3 m_cachedInertiaTopRight; - btMatrix3x3 m_cachedInertiaLowerLeft; - btMatrix3x3 m_cachedInertiaLowerRight; - bool m_cachedInertiaValid; - - bool m_fixedBase; - - // Sleep parameters. - bool m_awake; - bool m_canSleep; - btScalar m_sleepTimer; - - void* m_userObjectPointer; - int m_userIndex2; - int m_userIndex; - - int m_companionId; - btScalar m_linearDamping; - btScalar m_angularDamping; - bool m_useGyroTerm; - btScalar m_maxAppliedImpulse; - btScalar m_maxCoordinateVelocity; - bool m_hasSelfCollision; - - bool __posUpdated; - int m_dofCount, m_posVarCnt; - bool m_useRK4, m_useGlobalVelocities; - - ///the m_needsJointFeedback gets updated/computed during the stepVelocitiesMultiDof and it for internal usage only - bool m_internalNeedsJointFeedback; -}; - -struct btMultiBodyLinkDoubleData -{ - btQuaternionDoubleData m_zeroRotParentToThis; - btVector3DoubleData m_parentComToThisComOffset; - btVector3DoubleData m_thisPivotToThisComOffset; - btVector3DoubleData m_jointAxisTop[6]; - btVector3DoubleData m_jointAxisBottom[6]; - - btVector3DoubleData m_linkInertia; // inertia of the base (in local frame; diagonal) - double m_linkMass; - int m_parentIndex; - int m_jointType; - - int m_dofCount; - int m_posVarCount; - double m_jointPos[7]; - double m_jointVel[6]; - double m_jointTorque[6]; - - double m_jointDamping; - double m_jointFriction; - double m_jointLowerLimit; - double m_jointUpperLimit; - double m_jointMaxForce; - double m_jointMaxVelocity; - - char *m_linkName; - char *m_jointName; - btCollisionObjectDoubleData *m_linkCollider; - char *m_paddingPtr; - -}; - -struct btMultiBodyLinkFloatData -{ - btQuaternionFloatData m_zeroRotParentToThis; - btVector3FloatData m_parentComToThisComOffset; - btVector3FloatData m_thisPivotToThisComOffset; - btVector3FloatData m_jointAxisTop[6]; - btVector3FloatData m_jointAxisBottom[6]; - btVector3FloatData m_linkInertia; // inertia of the base (in local frame; diagonal) - int m_dofCount; - float m_linkMass; - int m_parentIndex; - int m_jointType; - - - - float m_jointPos[7]; - float m_jointVel[6]; - float m_jointTorque[6]; - int m_posVarCount; - float m_jointDamping; - float m_jointFriction; - float m_jointLowerLimit; - float m_jointUpperLimit; - float m_jointMaxForce; - float m_jointMaxVelocity; - - char *m_linkName; - char *m_jointName; - btCollisionObjectFloatData *m_linkCollider; - char *m_paddingPtr; - -}; - -///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64 -struct btMultiBodyDoubleData -{ - btTransformDoubleData m_baseWorldTransform; - btVector3DoubleData m_baseInertia; // inertia of the base (in local frame; diagonal) - double m_baseMass; - - char *m_baseName; - btMultiBodyLinkDoubleData *m_links; - btCollisionObjectDoubleData *m_baseCollider; - char *m_paddingPtr; - int m_numLinks; - char m_padding[4]; -}; - -///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64 -struct btMultiBodyFloatData -{ - char *m_baseName; - btMultiBodyLinkFloatData *m_links; - btCollisionObjectFloatData *m_baseCollider; - btTransformFloatData m_baseWorldTransform; - btVector3FloatData m_baseInertia; // inertia of the base (in local frame; diagonal) - - float m_baseMass; - int m_numLinks; -}; - - - -#endif diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyConstraint.cpp b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyConstraint.cpp deleted file mode 100644 index d52852dd8e..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyConstraint.cpp +++ /dev/null @@ -1,417 +0,0 @@ -#include "btMultiBodyConstraint.h" -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include "btMultiBodyPoint2Point.h" //for testing (BTMBP2PCONSTRAINT_BLOCK_ANGULAR_MOTION_TEST macro) - - - -btMultiBodyConstraint::btMultiBodyConstraint(btMultiBody* bodyA,btMultiBody* bodyB,int linkA, int linkB, int numRows, bool isUnilateral) - :m_bodyA(bodyA), - m_bodyB(bodyB), - m_linkA(linkA), - m_linkB(linkB), - m_numRows(numRows), - m_jacSizeA(0), - m_jacSizeBoth(0), - m_isUnilateral(isUnilateral), - m_numDofsFinalized(-1), - m_maxAppliedImpulse(100) -{ - -} - -void btMultiBodyConstraint::updateJacobianSizes() -{ - if(m_bodyA) - { - m_jacSizeA = (6 + m_bodyA->getNumDofs()); - } - - if(m_bodyB) - { - m_jacSizeBoth = m_jacSizeA + 6 + m_bodyB->getNumDofs(); - } - else - m_jacSizeBoth = m_jacSizeA; -} - -void btMultiBodyConstraint::allocateJacobiansMultiDof() -{ - updateJacobianSizes(); - - m_posOffset = ((1 + m_jacSizeBoth)*m_numRows); - m_data.resize((2 + m_jacSizeBoth) * m_numRows); -} - -btMultiBodyConstraint::~btMultiBodyConstraint() -{ -} - -void btMultiBodyConstraint::applyDeltaVee(btMultiBodyJacobianData& data, btScalar* delta_vee, btScalar impulse, int velocityIndex, int ndof) -{ - for (int i = 0; i < ndof; ++i) - data.m_deltaVelocities[velocityIndex+i] += delta_vee[i] * impulse; -} - -btScalar btMultiBodyConstraint::fillMultiBodyConstraint( btMultiBodySolverConstraint& solverConstraint, - btMultiBodyJacobianData& data, - btScalar* jacOrgA, btScalar* jacOrgB, - const btVector3& constraintNormalAng, - const btVector3& constraintNormalLin, - const btVector3& posAworld, const btVector3& posBworld, - btScalar posError, - const btContactSolverInfo& infoGlobal, - btScalar lowerLimit, btScalar upperLimit, - bool angConstraint, - btScalar relaxation, - bool isFriction, btScalar desiredVelocity, btScalar cfmSlip) -{ - solverConstraint.m_multiBodyA = m_bodyA; - solverConstraint.m_multiBodyB = m_bodyB; - solverConstraint.m_linkA = m_linkA; - solverConstraint.m_linkB = m_linkB; - - btMultiBody* multiBodyA = solverConstraint.m_multiBodyA; - btMultiBody* multiBodyB = solverConstraint.m_multiBodyB; - - btSolverBody* bodyA = multiBodyA ? 0 : &data.m_solverBodyPool->at(solverConstraint.m_solverBodyIdA); - btSolverBody* bodyB = multiBodyB ? 0 : &data.m_solverBodyPool->at(solverConstraint.m_solverBodyIdB); - - btRigidBody* rb0 = multiBodyA ? 0 : bodyA->m_originalBody; - btRigidBody* rb1 = multiBodyB ? 0 : bodyB->m_originalBody; - - btVector3 rel_pos1, rel_pos2; //these two used to be inited to posAworld and posBworld (respectively) but it does not seem necessary - if (bodyA) - rel_pos1 = posAworld - bodyA->getWorldTransform().getOrigin(); - if (bodyB) - rel_pos2 = posBworld - bodyB->getWorldTransform().getOrigin(); - - if (multiBodyA) - { - if (solverConstraint.m_linkA<0) - { - rel_pos1 = posAworld - multiBodyA->getBasePos(); - } else - { - rel_pos1 = posAworld - multiBodyA->getLink(solverConstraint.m_linkA).m_cachedWorldTransform.getOrigin(); - } - - const int ndofA = multiBodyA->getNumDofs() + 6; - - solverConstraint.m_deltaVelAindex = multiBodyA->getCompanionId(); - - if (solverConstraint.m_deltaVelAindex <0) - { - solverConstraint.m_deltaVelAindex = data.m_deltaVelocities.size(); - multiBodyA->setCompanionId(solverConstraint.m_deltaVelAindex); - data.m_deltaVelocities.resize(data.m_deltaVelocities.size()+ndofA); - } else - { - btAssert(data.m_deltaVelocities.size() >= solverConstraint.m_deltaVelAindex+ndofA); - } - - //determine jacobian of this 1D constraint in terms of multibodyA's degrees of freedom - //resize.. - solverConstraint.m_jacAindex = data.m_jacobians.size(); - data.m_jacobians.resize(data.m_jacobians.size()+ndofA); - //copy/determine - if(jacOrgA) - { - for (int i=0;i<ndofA;i++) - data.m_jacobians[solverConstraint.m_jacAindex+i] = jacOrgA[i]; - } - else - { - btScalar* jac1=&data.m_jacobians[solverConstraint.m_jacAindex]; - //multiBodyA->fillContactJacobianMultiDof(solverConstraint.m_linkA, posAworld, constraintNormalLin, jac1, data.scratch_r, data.scratch_v, data.scratch_m); - multiBodyA->fillConstraintJacobianMultiDof(solverConstraint.m_linkA, posAworld, constraintNormalAng, constraintNormalLin, jac1, data.scratch_r, data.scratch_v, data.scratch_m); - } - - //determine the velocity response of multibodyA to reaction impulses of this constraint (i.e. A[i,i] for i=1,...n_con: multibody's inverse inertia with respect to this 1D constraint) - //resize.. - data.m_deltaVelocitiesUnitImpulse.resize(data.m_deltaVelocitiesUnitImpulse.size()+ndofA); //=> each constraint row has the constrained tree dofs allocated in m_deltaVelocitiesUnitImpulse - btAssert(data.m_jacobians.size() == data.m_deltaVelocitiesUnitImpulse.size()); - btScalar* delta = &data.m_deltaVelocitiesUnitImpulse[solverConstraint.m_jacAindex]; - //determine.. - multiBodyA->calcAccelerationDeltasMultiDof(&data.m_jacobians[solverConstraint.m_jacAindex],delta,data.scratch_r, data.scratch_v); - - btVector3 torqueAxis0; - if (angConstraint) { - torqueAxis0 = constraintNormalAng; - } - else { - torqueAxis0 = rel_pos1.cross(constraintNormalLin); - - } - solverConstraint.m_relpos1CrossNormal = torqueAxis0; - solverConstraint.m_contactNormal1 = constraintNormalLin; - } - else //if(rb0) - { - btVector3 torqueAxis0; - if (angConstraint) { - torqueAxis0 = constraintNormalAng; - } - else { - torqueAxis0 = rel_pos1.cross(constraintNormalLin); - } - solverConstraint.m_angularComponentA = rb0 ? rb0->getInvInertiaTensorWorld()*torqueAxis0*rb0->getAngularFactor() : btVector3(0,0,0); - solverConstraint.m_relpos1CrossNormal = torqueAxis0; - solverConstraint.m_contactNormal1 = constraintNormalLin; - } - - if (multiBodyB) - { - if (solverConstraint.m_linkB<0) - { - rel_pos2 = posBworld - multiBodyB->getBasePos(); - } else - { - rel_pos2 = posBworld - multiBodyB->getLink(solverConstraint.m_linkB).m_cachedWorldTransform.getOrigin(); - } - - const int ndofB = multiBodyB->getNumDofs() + 6; - - solverConstraint.m_deltaVelBindex = multiBodyB->getCompanionId(); - if (solverConstraint.m_deltaVelBindex <0) - { - solverConstraint.m_deltaVelBindex = data.m_deltaVelocities.size(); - multiBodyB->setCompanionId(solverConstraint.m_deltaVelBindex); - data.m_deltaVelocities.resize(data.m_deltaVelocities.size()+ndofB); - } - - //determine jacobian of this 1D constraint in terms of multibodyB's degrees of freedom - //resize.. - solverConstraint.m_jacBindex = data.m_jacobians.size(); - data.m_jacobians.resize(data.m_jacobians.size()+ndofB); - //copy/determine.. - if(jacOrgB) - { - for (int i=0;i<ndofB;i++) - data.m_jacobians[solverConstraint.m_jacBindex+i] = jacOrgB[i]; - } - else - { - //multiBodyB->fillContactJacobianMultiDof(solverConstraint.m_linkB, posBworld, -constraintNormalLin, &data.m_jacobians[solverConstraint.m_jacBindex], data.scratch_r, data.scratch_v, data.scratch_m); - multiBodyB->fillConstraintJacobianMultiDof(solverConstraint.m_linkB, posBworld, -constraintNormalAng, -constraintNormalLin, &data.m_jacobians[solverConstraint.m_jacBindex], data.scratch_r, data.scratch_v, data.scratch_m); - } - - //determine velocity response of multibodyB to reaction impulses of this constraint (i.e. A[i,i] for i=1,...n_con: multibody's inverse inertia with respect to this 1D constraint) - //resize.. - data.m_deltaVelocitiesUnitImpulse.resize(data.m_deltaVelocitiesUnitImpulse.size()+ndofB); - btAssert(data.m_jacobians.size() == data.m_deltaVelocitiesUnitImpulse.size()); - btScalar* delta = &data.m_deltaVelocitiesUnitImpulse[solverConstraint.m_jacBindex]; - //determine.. - multiBodyB->calcAccelerationDeltasMultiDof(&data.m_jacobians[solverConstraint.m_jacBindex],delta,data.scratch_r, data.scratch_v); - - btVector3 torqueAxis1; - if (angConstraint) { - torqueAxis1 = constraintNormalAng; - } - else { - torqueAxis1 = rel_pos2.cross(constraintNormalLin); - } - solverConstraint.m_relpos2CrossNormal = -torqueAxis1; - solverConstraint.m_contactNormal2 = -constraintNormalLin; - } - else //if(rb1) - { - btVector3 torqueAxis1; - if (angConstraint) { - torqueAxis1 = constraintNormalAng; - } - else { - torqueAxis1 = rel_pos2.cross(constraintNormalLin); - } - solverConstraint.m_angularComponentB = rb1 ? rb1->getInvInertiaTensorWorld()*-torqueAxis1*rb1->getAngularFactor() : btVector3(0,0,0); - solverConstraint.m_relpos2CrossNormal = -torqueAxis1; - solverConstraint.m_contactNormal2 = -constraintNormalLin; - } - { - - btVector3 vec; - btScalar denom0 = 0.f; - btScalar denom1 = 0.f; - btScalar* jacB = 0; - btScalar* jacA = 0; - btScalar* deltaVelA = 0; - btScalar* deltaVelB = 0; - int ndofA = 0; - //determine the "effective mass" of the constrained multibodyA with respect to this 1D constraint (i.e. 1/A[i,i]) - if (multiBodyA) - { - ndofA = multiBodyA->getNumDofs() + 6; - jacA = &data.m_jacobians[solverConstraint.m_jacAindex]; - deltaVelA = &data.m_deltaVelocitiesUnitImpulse[solverConstraint.m_jacAindex]; - for (int i = 0; i < ndofA; ++i) - { - btScalar j = jacA[i] ; - btScalar l = deltaVelA[i]; - denom0 += j*l; - } - } - else if(rb0) - { - vec = ( solverConstraint.m_angularComponentA).cross(rel_pos1); - if (angConstraint) { - denom0 = rb0->getInvMass() + constraintNormalAng.dot(vec); - } - else { - denom0 = rb0->getInvMass() + constraintNormalLin.dot(vec); - } - } - // - if (multiBodyB) - { - const int ndofB = multiBodyB->getNumDofs() + 6; - jacB = &data.m_jacobians[solverConstraint.m_jacBindex]; - deltaVelB = &data.m_deltaVelocitiesUnitImpulse[solverConstraint.m_jacBindex]; - for (int i = 0; i < ndofB; ++i) - { - btScalar j = jacB[i] ; - btScalar l = deltaVelB[i]; - denom1 += j*l; - } - - } - else if(rb1) - { - vec = ( -solverConstraint.m_angularComponentB).cross(rel_pos2); - if (angConstraint) { - denom1 = rb1->getInvMass() + constraintNormalAng.dot(vec); - } - else { - denom1 = rb1->getInvMass() + constraintNormalLin.dot(vec); - } - } - - // - btScalar d = denom0+denom1; - if (d>SIMD_EPSILON) - { - solverConstraint.m_jacDiagABInv = relaxation/(d); - } - else - { - //disable the constraint row to handle singularity/redundant constraint - solverConstraint.m_jacDiagABInv = 0.f; - } - } - - - //compute rhs and remaining solverConstraint fields - btScalar penetration = isFriction? 0 : posError; - - btScalar rel_vel = 0.f; - int ndofA = 0; - int ndofB = 0; - { - btVector3 vel1,vel2; - if (multiBodyA) - { - ndofA = multiBodyA->getNumDofs() + 6; - btScalar* jacA = &data.m_jacobians[solverConstraint.m_jacAindex]; - for (int i = 0; i < ndofA ; ++i) - rel_vel += multiBodyA->getVelocityVector()[i] * jacA[i]; - } - else if(rb0) - { - rel_vel += rb0->getVelocityInLocalPoint(rel_pos1).dot(solverConstraint.m_contactNormal1); - } - if (multiBodyB) - { - ndofB = multiBodyB->getNumDofs() + 6; - btScalar* jacB = &data.m_jacobians[solverConstraint.m_jacBindex]; - for (int i = 0; i < ndofB ; ++i) - rel_vel += multiBodyB->getVelocityVector()[i] * jacB[i]; - - } - else if(rb1) - { - rel_vel += rb1->getVelocityInLocalPoint(rel_pos2).dot(solverConstraint.m_contactNormal2); - } - - solverConstraint.m_friction = 0.f;//cp.m_combinedFriction; - } - - - ///warm starting (or zero if disabled) - /* - if (infoGlobal.m_solverMode & SOLVER_USE_WARMSTARTING) - { - solverConstraint.m_appliedImpulse = isFriction ? 0 : cp.m_appliedImpulse * infoGlobal.m_warmstartingFactor; - - if (solverConstraint.m_appliedImpulse) - { - if (multiBodyA) - { - btScalar impulse = solverConstraint.m_appliedImpulse; - btScalar* deltaV = &data.m_deltaVelocitiesUnitImpulse[solverConstraint.m_jacAindex]; - multiBodyA->applyDeltaVee(deltaV,impulse); - applyDeltaVee(data,deltaV,impulse,solverConstraint.m_deltaVelAindex,ndofA); - } else - { - if (rb0) - bodyA->internalApplyImpulse(solverConstraint.m_contactNormal1*bodyA->internalGetInvMass()*rb0->getLinearFactor(),solverConstraint.m_angularComponentA,solverConstraint.m_appliedImpulse); - } - if (multiBodyB) - { - btScalar impulse = solverConstraint.m_appliedImpulse; - btScalar* deltaV = &data.m_deltaVelocitiesUnitImpulse[solverConstraint.m_jacBindex]; - multiBodyB->applyDeltaVee(deltaV,impulse); - applyDeltaVee(data,deltaV,impulse,solverConstraint.m_deltaVelBindex,ndofB); - } else - { - if (rb1) - bodyB->internalApplyImpulse(-solverConstraint.m_contactNormal2*bodyB->internalGetInvMass()*rb1->getLinearFactor(),-solverConstraint.m_angularComponentB,-(btScalar)solverConstraint.m_appliedImpulse); - } - } - } else - */ - - solverConstraint.m_appliedImpulse = 0.f; - solverConstraint.m_appliedPushImpulse = 0.f; - - { - - btScalar positionalError = 0.f; - btScalar velocityError = desiredVelocity - rel_vel;// * damping; - - - btScalar erp = infoGlobal.m_erp2; - - //split impulse is not implemented yet for btMultiBody* - //if (!infoGlobal.m_splitImpulse || (penetration > infoGlobal.m_splitImpulsePenetrationThreshold)) - { - erp = infoGlobal.m_erp; - } - - positionalError = -penetration * erp/infoGlobal.m_timeStep; - - btScalar penetrationImpulse = positionalError*solverConstraint.m_jacDiagABInv; - btScalar velocityImpulse = velocityError *solverConstraint.m_jacDiagABInv; - - //split impulse is not implemented yet for btMultiBody* - - // if (!infoGlobal.m_splitImpulse || (penetration > infoGlobal.m_splitImpulsePenetrationThreshold)) - { - //combine position and velocity into rhs - solverConstraint.m_rhs = penetrationImpulse+velocityImpulse; - solverConstraint.m_rhsPenetration = 0.f; - - } - /*else - { - //split position and velocity into rhs and m_rhsPenetration - solverConstraint.m_rhs = velocityImpulse; - solverConstraint.m_rhsPenetration = penetrationImpulse; - } - */ - - solverConstraint.m_cfm = 0.f; - solverConstraint.m_lowerLimit = lowerLimit; - solverConstraint.m_upperLimit = upperLimit; - } - - return rel_vel; - -} diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyConstraint.h b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyConstraint.h deleted file mode 100644 index 83521b9501..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyConstraint.h +++ /dev/null @@ -1,195 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_MULTIBODY_CONSTRAINT_H -#define BT_MULTIBODY_CONSTRAINT_H - -#include "LinearMath/btScalar.h" -#include "LinearMath/btAlignedObjectArray.h" -#include "btMultiBody.h" - -class btMultiBody; -struct btSolverInfo; - -#include "btMultiBodySolverConstraint.h" - -struct btMultiBodyJacobianData -{ - btAlignedObjectArray<btScalar> m_jacobians; - btAlignedObjectArray<btScalar> m_deltaVelocitiesUnitImpulse; //holds the joint-space response of the corresp. tree to the test impulse in each constraint space dimension - btAlignedObjectArray<btScalar> m_deltaVelocities; //holds joint-space vectors of all the constrained trees accumulating the effect of corrective impulses applied in SI - btAlignedObjectArray<btScalar> scratch_r; - btAlignedObjectArray<btVector3> scratch_v; - btAlignedObjectArray<btMatrix3x3> scratch_m; - btAlignedObjectArray<btSolverBody>* m_solverBodyPool; - int m_fixedBodyId; - -}; - - -ATTRIBUTE_ALIGNED16(class) btMultiBodyConstraint -{ -protected: - - btMultiBody* m_bodyA; - btMultiBody* m_bodyB; - int m_linkA; - int m_linkB; - - int m_numRows; - int m_jacSizeA; - int m_jacSizeBoth; - int m_posOffset; - - bool m_isUnilateral; - int m_numDofsFinalized; - btScalar m_maxAppliedImpulse; - - - // warning: the data block lay out is not consistent for all constraints - // data block laid out as follows: - // cached impulses. (one per row.) - // jacobians. (interleaved, row1 body1 then row1 body2 then row2 body 1 etc) - // positions. (one per row.) - btAlignedObjectArray<btScalar> m_data; - - void applyDeltaVee(btMultiBodyJacobianData& data, btScalar* delta_vee, btScalar impulse, int velocityIndex, int ndof); - - btScalar fillMultiBodyConstraint(btMultiBodySolverConstraint& solverConstraint, - btMultiBodyJacobianData& data, - btScalar* jacOrgA, btScalar* jacOrgB, - const btVector3& constraintNormalAng, - - const btVector3& constraintNormalLin, - const btVector3& posAworld, const btVector3& posBworld, - btScalar posError, - const btContactSolverInfo& infoGlobal, - btScalar lowerLimit, btScalar upperLimit, - bool angConstraint = false, - - btScalar relaxation = 1.f, - bool isFriction = false, btScalar desiredVelocity=0, btScalar cfmSlip=0); - -public: - - BT_DECLARE_ALIGNED_ALLOCATOR(); - - btMultiBodyConstraint(btMultiBody* bodyA,btMultiBody* bodyB,int linkA, int linkB, int numRows, bool isUnilateral); - virtual ~btMultiBodyConstraint(); - - void updateJacobianSizes(); - void allocateJacobiansMultiDof(); - - //many constraints have setFrameInB/setPivotInB. Will use 'getConstraintType' later. - virtual void setFrameInB(const btMatrix3x3& frameInB) {} - virtual void setPivotInB(const btVector3& pivotInB){} - - virtual void finalizeMultiDof()=0; - - virtual int getIslandIdA() const =0; - virtual int getIslandIdB() const =0; - - virtual void createConstraintRows(btMultiBodyConstraintArray& constraintRows, - btMultiBodyJacobianData& data, - const btContactSolverInfo& infoGlobal)=0; - - int getNumRows() const - { - return m_numRows; - } - - btMultiBody* getMultiBodyA() - { - return m_bodyA; - } - btMultiBody* getMultiBodyB() - { - return m_bodyB; - } - - void internalSetAppliedImpulse(int dof, btScalar appliedImpulse) - { - btAssert(dof>=0); - btAssert(dof < getNumRows()); - m_data[dof] = appliedImpulse; - - } - - btScalar getAppliedImpulse(int dof) - { - btAssert(dof>=0); - btAssert(dof < getNumRows()); - return m_data[dof]; - } - // current constraint position - // constraint is pos >= 0 for unilateral, or pos = 0 for bilateral - // NOTE: ignored position for friction rows. - btScalar getPosition(int row) const - { - return m_data[m_posOffset + row]; - } - - void setPosition(int row, btScalar pos) - { - m_data[m_posOffset + row] = pos; - } - - - bool isUnilateral() const - { - return m_isUnilateral; - } - - // jacobian blocks. - // each of size 6 + num_links. (jacobian2 is null if no body2.) - // format: 3 'omega' coefficients, 3 'v' coefficients, then the 'qdot' coefficients. - btScalar* jacobianA(int row) - { - return &m_data[m_numRows + row * m_jacSizeBoth]; - } - const btScalar* jacobianA(int row) const - { - return &m_data[m_numRows + (row * m_jacSizeBoth)]; - } - btScalar* jacobianB(int row) - { - return &m_data[m_numRows + (row * m_jacSizeBoth) + m_jacSizeA]; - } - const btScalar* jacobianB(int row) const - { - return &m_data[m_numRows + (row * m_jacSizeBoth) + m_jacSizeA]; - } - - btScalar getMaxAppliedImpulse() const - { - return m_maxAppliedImpulse; - } - void setMaxAppliedImpulse(btScalar maxImp) - { - m_maxAppliedImpulse = maxImp; - } - - virtual void debugDraw(class btIDebugDraw* drawer)=0; - - virtual void setGearRatio(btScalar ratio) {} - virtual void setGearAuxLink(int gearAuxLink) {} - virtual void setRelativePositionTarget(btScalar relPosTarget){} - virtual void setErp(btScalar erp){} - - -}; - -#endif //BT_MULTIBODY_CONSTRAINT_H - diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyConstraintSolver.cpp b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyConstraintSolver.cpp deleted file mode 100644 index 1e2d074096..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyConstraintSolver.cpp +++ /dev/null @@ -1,1429 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - - -#include "btMultiBodyConstraintSolver.h" -#include "BulletCollision/NarrowPhaseCollision/btPersistentManifold.h" -#include "btMultiBodyLinkCollider.h" - -#include "BulletDynamics/ConstraintSolver/btSolverBody.h" -#include "btMultiBodyConstraint.h" -#include "BulletDynamics/ConstraintSolver/btContactSolverInfo.h" - -#include "LinearMath/btQuickprof.h" - -btScalar btMultiBodyConstraintSolver::solveSingleIteration(int iteration, btCollisionObject** bodies ,int numBodies,btPersistentManifold** manifoldPtr, int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* debugDrawer) -{ - btScalar leastSquaredResidual = btSequentialImpulseConstraintSolver::solveSingleIteration(iteration, bodies ,numBodies,manifoldPtr, numManifolds,constraints,numConstraints,infoGlobal,debugDrawer); - - //solve featherstone non-contact constraints - - //printf("m_multiBodyNonContactConstraints = %d\n",m_multiBodyNonContactConstraints.size()); - - for (int j=0;j<m_multiBodyNonContactConstraints.size();j++) - { - int index = iteration&1? j : m_multiBodyNonContactConstraints.size()-1-j; - - btMultiBodySolverConstraint& constraint = m_multiBodyNonContactConstraints[index]; - - btScalar residual = resolveSingleConstraintRowGeneric(constraint); - leastSquaredResidual += residual*residual; - - if(constraint.m_multiBodyA) - constraint.m_multiBodyA->setPosUpdated(false); - if(constraint.m_multiBodyB) - constraint.m_multiBodyB->setPosUpdated(false); - } - - //solve featherstone normal contact - for (int j0=0;j0<m_multiBodyNormalContactConstraints.size();j0++) - { - int index = j0;//iteration&1? j0 : m_multiBodyNormalContactConstraints.size()-1-j0; - - btMultiBodySolverConstraint& constraint = m_multiBodyNormalContactConstraints[index]; - btScalar residual = 0.f; - - if (iteration < infoGlobal.m_numIterations) - { - residual = resolveSingleConstraintRowGeneric(constraint); - } - - leastSquaredResidual += residual*residual; - - if(constraint.m_multiBodyA) - constraint.m_multiBodyA->setPosUpdated(false); - if(constraint.m_multiBodyB) - constraint.m_multiBodyB->setPosUpdated(false); - } - - //solve featherstone frictional contact - - for (int j1=0;j1<this->m_multiBodyFrictionContactConstraints.size();j1++) - { - if (iteration < infoGlobal.m_numIterations) - { - int index = j1;//iteration&1? j1 : m_multiBodyFrictionContactConstraints.size()-1-j1; - - btMultiBodySolverConstraint& frictionConstraint = m_multiBodyFrictionContactConstraints[index]; - btScalar totalImpulse = m_multiBodyNormalContactConstraints[frictionConstraint.m_frictionIndex].m_appliedImpulse; - //adjust friction limits here - if (totalImpulse>btScalar(0)) - { - frictionConstraint.m_lowerLimit = -(frictionConstraint.m_friction*totalImpulse); - frictionConstraint.m_upperLimit = frictionConstraint.m_friction*totalImpulse; - btScalar residual = resolveSingleConstraintRowGeneric(frictionConstraint); - leastSquaredResidual += residual*residual; - - if(frictionConstraint.m_multiBodyA) - frictionConstraint.m_multiBodyA->setPosUpdated(false); - if(frictionConstraint.m_multiBodyB) - frictionConstraint.m_multiBodyB->setPosUpdated(false); - } - } - } - return leastSquaredResidual; -} - -btScalar btMultiBodyConstraintSolver::solveGroupCacheFriendlySetup(btCollisionObject** bodies,int numBodies,btPersistentManifold** manifoldPtr, int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* debugDrawer) -{ - m_multiBodyNonContactConstraints.resize(0); - m_multiBodyNormalContactConstraints.resize(0); - m_multiBodyFrictionContactConstraints.resize(0); - m_data.m_jacobians.resize(0); - m_data.m_deltaVelocitiesUnitImpulse.resize(0); - m_data.m_deltaVelocities.resize(0); - - for (int i=0;i<numBodies;i++) - { - const btMultiBodyLinkCollider* fcA = btMultiBodyLinkCollider::upcast(bodies[i]); - if (fcA) - { - fcA->m_multiBody->setCompanionId(-1); - } - } - - btScalar val = btSequentialImpulseConstraintSolver::solveGroupCacheFriendlySetup( bodies,numBodies,manifoldPtr, numManifolds, constraints,numConstraints,infoGlobal,debugDrawer); - - return val; -} - -void btMultiBodyConstraintSolver::applyDeltaVee(btScalar* delta_vee, btScalar impulse, int velocityIndex, int ndof) -{ - for (int i = 0; i < ndof; ++i) - m_data.m_deltaVelocities[velocityIndex+i] += delta_vee[i] * impulse; -} - -btScalar btMultiBodyConstraintSolver::resolveSingleConstraintRowGeneric(const btMultiBodySolverConstraint& c) -{ - - btScalar deltaImpulse = c.m_rhs-btScalar(c.m_appliedImpulse)*c.m_cfm; - btScalar deltaVelADotn=0; - btScalar deltaVelBDotn=0; - btSolverBody* bodyA = 0; - btSolverBody* bodyB = 0; - int ndofA=0; - int ndofB=0; - - if (c.m_multiBodyA) - { - ndofA = c.m_multiBodyA->getNumDofs() + 6; - for (int i = 0; i < ndofA; ++i) - deltaVelADotn += m_data.m_jacobians[c.m_jacAindex+i] * m_data.m_deltaVelocities[c.m_deltaVelAindex+i]; - } else if(c.m_solverBodyIdA >= 0) - { - bodyA = &m_tmpSolverBodyPool[c.m_solverBodyIdA]; - deltaVelADotn += c.m_contactNormal1.dot(bodyA->internalGetDeltaLinearVelocity()) + c.m_relpos1CrossNormal.dot(bodyA->internalGetDeltaAngularVelocity()); - } - - if (c.m_multiBodyB) - { - ndofB = c.m_multiBodyB->getNumDofs() + 6; - for (int i = 0; i < ndofB; ++i) - deltaVelBDotn += m_data.m_jacobians[c.m_jacBindex+i] * m_data.m_deltaVelocities[c.m_deltaVelBindex+i]; - } else if(c.m_solverBodyIdB >= 0) - { - bodyB = &m_tmpSolverBodyPool[c.m_solverBodyIdB]; - deltaVelBDotn += c.m_contactNormal2.dot(bodyB->internalGetDeltaLinearVelocity()) + c.m_relpos2CrossNormal.dot(bodyB->internalGetDeltaAngularVelocity()); - } - - - deltaImpulse -= deltaVelADotn*c.m_jacDiagABInv;//m_jacDiagABInv = 1./denom - deltaImpulse -= deltaVelBDotn*c.m_jacDiagABInv; - const btScalar sum = btScalar(c.m_appliedImpulse) + deltaImpulse; - - if (sum < c.m_lowerLimit) - { - deltaImpulse = c.m_lowerLimit-c.m_appliedImpulse; - c.m_appliedImpulse = c.m_lowerLimit; - } - else if (sum > c.m_upperLimit) - { - deltaImpulse = c.m_upperLimit-c.m_appliedImpulse; - c.m_appliedImpulse = c.m_upperLimit; - } - else - { - c.m_appliedImpulse = sum; - } - - if (c.m_multiBodyA) - { - applyDeltaVee(&m_data.m_deltaVelocitiesUnitImpulse[c.m_jacAindex],deltaImpulse,c.m_deltaVelAindex,ndofA); -#ifdef DIRECTLY_UPDATE_VELOCITY_DURING_SOLVER_ITERATIONS - //note: update of the actual velocities (below) in the multibody does not have to happen now since m_deltaVelocities can be applied after all iterations - //it would make the multibody solver more like the regular one with m_deltaVelocities being equivalent to btSolverBody::m_deltaLinearVelocity/m_deltaAngularVelocity - c.m_multiBodyA->applyDeltaVeeMultiDof2(&m_data.m_deltaVelocitiesUnitImpulse[c.m_jacAindex],deltaImpulse); -#endif //DIRECTLY_UPDATE_VELOCITY_DURING_SOLVER_ITERATIONS - } else if(c.m_solverBodyIdA >= 0) - { - bodyA->internalApplyImpulse(c.m_contactNormal1*bodyA->internalGetInvMass(),c.m_angularComponentA,deltaImpulse); - - } - if (c.m_multiBodyB) - { - applyDeltaVee(&m_data.m_deltaVelocitiesUnitImpulse[c.m_jacBindex],deltaImpulse,c.m_deltaVelBindex,ndofB); -#ifdef DIRECTLY_UPDATE_VELOCITY_DURING_SOLVER_ITERATIONS - //note: update of the actual velocities (below) in the multibody does not have to happen now since m_deltaVelocities can be applied after all iterations - //it would make the multibody solver more like the regular one with m_deltaVelocities being equivalent to btSolverBody::m_deltaLinearVelocity/m_deltaAngularVelocity - c.m_multiBodyB->applyDeltaVeeMultiDof2(&m_data.m_deltaVelocitiesUnitImpulse[c.m_jacBindex],deltaImpulse); -#endif //DIRECTLY_UPDATE_VELOCITY_DURING_SOLVER_ITERATIONS - } else if(c.m_solverBodyIdB >= 0) - { - bodyB->internalApplyImpulse(c.m_contactNormal2*bodyB->internalGetInvMass(),c.m_angularComponentB,deltaImpulse); - } - return deltaImpulse; -} - - - - -void btMultiBodyConstraintSolver::setupMultiBodyContactConstraint(btMultiBodySolverConstraint& solverConstraint, - const btVector3& contactNormal, - btManifoldPoint& cp, const btContactSolverInfo& infoGlobal, - btScalar& relaxation, - bool isFriction, btScalar desiredVelocity, btScalar cfmSlip) -{ - - BT_PROFILE("setupMultiBodyContactConstraint"); - btVector3 rel_pos1; - btVector3 rel_pos2; - - btMultiBody* multiBodyA = solverConstraint.m_multiBodyA; - btMultiBody* multiBodyB = solverConstraint.m_multiBodyB; - - const btVector3& pos1 = cp.getPositionWorldOnA(); - const btVector3& pos2 = cp.getPositionWorldOnB(); - - btSolverBody* bodyA = multiBodyA ? 0 : &m_tmpSolverBodyPool[solverConstraint.m_solverBodyIdA]; - btSolverBody* bodyB = multiBodyB ? 0 : &m_tmpSolverBodyPool[solverConstraint.m_solverBodyIdB]; - - btRigidBody* rb0 = multiBodyA ? 0 : bodyA->m_originalBody; - btRigidBody* rb1 = multiBodyB ? 0 : bodyB->m_originalBody; - - if (bodyA) - rel_pos1 = pos1 - bodyA->getWorldTransform().getOrigin(); - if (bodyB) - rel_pos2 = pos2 - bodyB->getWorldTransform().getOrigin(); - - relaxation = infoGlobal.m_sor; - - btScalar invTimeStep = btScalar(1)/infoGlobal.m_timeStep; - - //cfm = 1 / ( dt * kp + kd ) - //erp = dt * kp / ( dt * kp + kd ) - - btScalar cfm; - btScalar erp; - if (isFriction) - { - cfm = infoGlobal.m_frictionCFM; - erp = infoGlobal.m_frictionERP; - } else - { - cfm = infoGlobal.m_globalCfm; - erp = infoGlobal.m_erp2; - - if ((cp.m_contactPointFlags&BT_CONTACT_FLAG_HAS_CONTACT_CFM) || (cp.m_contactPointFlags&BT_CONTACT_FLAG_HAS_CONTACT_ERP)) - { - if (cp.m_contactPointFlags&BT_CONTACT_FLAG_HAS_CONTACT_CFM) - cfm = cp.m_contactCFM; - if (cp.m_contactPointFlags&BT_CONTACT_FLAG_HAS_CONTACT_ERP) - erp = cp.m_contactERP; - } else - { - if (cp.m_contactPointFlags & BT_CONTACT_FLAG_CONTACT_STIFFNESS_DAMPING) - { - btScalar denom = ( infoGlobal.m_timeStep * cp.m_combinedContactStiffness1 + cp.m_combinedContactDamping1 ); - if (denom < SIMD_EPSILON) - { - denom = SIMD_EPSILON; - } - cfm = btScalar(1) / denom; - erp = (infoGlobal.m_timeStep * cp.m_combinedContactStiffness1) / denom; - } - } - } - - cfm *= invTimeStep; - - if (multiBodyA) - { - if (solverConstraint.m_linkA<0) - { - rel_pos1 = pos1 - multiBodyA->getBasePos(); - } else - { - rel_pos1 = pos1 - multiBodyA->getLink(solverConstraint.m_linkA).m_cachedWorldTransform.getOrigin(); - } - const int ndofA = multiBodyA->getNumDofs() + 6; - - solverConstraint.m_deltaVelAindex = multiBodyA->getCompanionId(); - - if (solverConstraint.m_deltaVelAindex <0) - { - solverConstraint.m_deltaVelAindex = m_data.m_deltaVelocities.size(); - multiBodyA->setCompanionId(solverConstraint.m_deltaVelAindex); - m_data.m_deltaVelocities.resize(m_data.m_deltaVelocities.size()+ndofA); - } else - { - btAssert(m_data.m_deltaVelocities.size() >= solverConstraint.m_deltaVelAindex+ndofA); - } - - solverConstraint.m_jacAindex = m_data.m_jacobians.size(); - m_data.m_jacobians.resize(m_data.m_jacobians.size()+ndofA); - m_data.m_deltaVelocitiesUnitImpulse.resize(m_data.m_deltaVelocitiesUnitImpulse.size()+ndofA); - btAssert(m_data.m_jacobians.size() == m_data.m_deltaVelocitiesUnitImpulse.size()); - - btScalar* jac1=&m_data.m_jacobians[solverConstraint.m_jacAindex]; - multiBodyA->fillContactJacobianMultiDof(solverConstraint.m_linkA, cp.getPositionWorldOnA(), contactNormal, jac1, m_data.scratch_r, m_data.scratch_v, m_data.scratch_m); - btScalar* delta = &m_data.m_deltaVelocitiesUnitImpulse[solverConstraint.m_jacAindex]; - multiBodyA->calcAccelerationDeltasMultiDof(&m_data.m_jacobians[solverConstraint.m_jacAindex],delta,m_data.scratch_r, m_data.scratch_v); - - btVector3 torqueAxis0 = rel_pos1.cross(contactNormal); - solverConstraint.m_relpos1CrossNormal = torqueAxis0; - solverConstraint.m_contactNormal1 = contactNormal; - } else - { - btVector3 torqueAxis0 = rel_pos1.cross(contactNormal); - solverConstraint.m_relpos1CrossNormal = torqueAxis0; - solverConstraint.m_contactNormal1 = contactNormal; - solverConstraint.m_angularComponentA = rb0 ? rb0->getInvInertiaTensorWorld()*torqueAxis0*rb0->getAngularFactor() : btVector3(0,0,0); - } - - - - if (multiBodyB) - { - if (solverConstraint.m_linkB<0) - { - rel_pos2 = pos2 - multiBodyB->getBasePos(); - } else - { - rel_pos2 = pos2 - multiBodyB->getLink(solverConstraint.m_linkB).m_cachedWorldTransform.getOrigin(); - } - - const int ndofB = multiBodyB->getNumDofs() + 6; - - solverConstraint.m_deltaVelBindex = multiBodyB->getCompanionId(); - if (solverConstraint.m_deltaVelBindex <0) - { - solverConstraint.m_deltaVelBindex = m_data.m_deltaVelocities.size(); - multiBodyB->setCompanionId(solverConstraint.m_deltaVelBindex); - m_data.m_deltaVelocities.resize(m_data.m_deltaVelocities.size()+ndofB); - } - - solverConstraint.m_jacBindex = m_data.m_jacobians.size(); - - m_data.m_jacobians.resize(m_data.m_jacobians.size()+ndofB); - m_data.m_deltaVelocitiesUnitImpulse.resize(m_data.m_deltaVelocitiesUnitImpulse.size()+ndofB); - btAssert(m_data.m_jacobians.size() == m_data.m_deltaVelocitiesUnitImpulse.size()); - - multiBodyB->fillContactJacobianMultiDof(solverConstraint.m_linkB, cp.getPositionWorldOnB(), -contactNormal, &m_data.m_jacobians[solverConstraint.m_jacBindex], m_data.scratch_r, m_data.scratch_v, m_data.scratch_m); - multiBodyB->calcAccelerationDeltasMultiDof(&m_data.m_jacobians[solverConstraint.m_jacBindex],&m_data.m_deltaVelocitiesUnitImpulse[solverConstraint.m_jacBindex],m_data.scratch_r, m_data.scratch_v); - - btVector3 torqueAxis1 = rel_pos2.cross(contactNormal); - solverConstraint.m_relpos2CrossNormal = -torqueAxis1; - solverConstraint.m_contactNormal2 = -contactNormal; - - } else - { - btVector3 torqueAxis1 = rel_pos2.cross(contactNormal); - solverConstraint.m_relpos2CrossNormal = -torqueAxis1; - solverConstraint.m_contactNormal2 = -contactNormal; - - solverConstraint.m_angularComponentB = rb1 ? rb1->getInvInertiaTensorWorld()*-torqueAxis1*rb1->getAngularFactor() : btVector3(0,0,0); - } - - { - - btVector3 vec; - btScalar denom0 = 0.f; - btScalar denom1 = 0.f; - btScalar* jacB = 0; - btScalar* jacA = 0; - btScalar* lambdaA =0; - btScalar* lambdaB =0; - int ndofA = 0; - if (multiBodyA) - { - ndofA = multiBodyA->getNumDofs() + 6; - jacA = &m_data.m_jacobians[solverConstraint.m_jacAindex]; - lambdaA = &m_data.m_deltaVelocitiesUnitImpulse[solverConstraint.m_jacAindex]; - for (int i = 0; i < ndofA; ++i) - { - btScalar j = jacA[i] ; - btScalar l =lambdaA[i]; - denom0 += j*l; - } - } else - { - if (rb0) - { - vec = ( solverConstraint.m_angularComponentA).cross(rel_pos1); - denom0 = rb0->getInvMass() + contactNormal.dot(vec); - } - } - if (multiBodyB) - { - const int ndofB = multiBodyB->getNumDofs() + 6; - jacB = &m_data.m_jacobians[solverConstraint.m_jacBindex]; - lambdaB = &m_data.m_deltaVelocitiesUnitImpulse[solverConstraint.m_jacBindex]; - for (int i = 0; i < ndofB; ++i) - { - btScalar j = jacB[i] ; - btScalar l =lambdaB[i]; - denom1 += j*l; - } - - } else - { - if (rb1) - { - vec = ( -solverConstraint.m_angularComponentB).cross(rel_pos2); - denom1 = rb1->getInvMass() + contactNormal.dot(vec); - } - } - - - - btScalar d = denom0+denom1+cfm; - if (d>SIMD_EPSILON) - { - solverConstraint.m_jacDiagABInv = relaxation/(d); - } else - { - //disable the constraint row to handle singularity/redundant constraint - solverConstraint.m_jacDiagABInv = 0.f; - } - - } - - - //compute rhs and remaining solverConstraint fields - - - - btScalar restitution = 0.f; - btScalar distance = 0; - if (!isFriction) - { - distance = cp.getDistance()+infoGlobal.m_linearSlop; - } else - { - if (cp.m_contactPointFlags & BT_CONTACT_FLAG_FRICTION_ANCHOR) - { - distance = (cp.getPositionWorldOnA() - cp.getPositionWorldOnB()).dot(contactNormal); - } - } - - - btScalar rel_vel = 0.f; - int ndofA = 0; - int ndofB = 0; - { - - btVector3 vel1,vel2; - if (multiBodyA) - { - ndofA = multiBodyA->getNumDofs() + 6; - btScalar* jacA = &m_data.m_jacobians[solverConstraint.m_jacAindex]; - for (int i = 0; i < ndofA ; ++i) - rel_vel += multiBodyA->getVelocityVector()[i] * jacA[i]; - } else - { - if (rb0) - { - rel_vel += (rb0->getVelocityInLocalPoint(rel_pos1) + - (rb0->getTotalTorque()*rb0->getInvInertiaTensorWorld()*infoGlobal.m_timeStep).cross(rel_pos1)+ - rb0->getTotalForce()*rb0->getInvMass()*infoGlobal.m_timeStep).dot(solverConstraint.m_contactNormal1); - } - } - if (multiBodyB) - { - ndofB = multiBodyB->getNumDofs() + 6; - btScalar* jacB = &m_data.m_jacobians[solverConstraint.m_jacBindex]; - for (int i = 0; i < ndofB ; ++i) - rel_vel += multiBodyB->getVelocityVector()[i] * jacB[i]; - - } else - { - if (rb1) - { - rel_vel += (rb1->getVelocityInLocalPoint(rel_pos2)+ - (rb1->getTotalTorque()*rb1->getInvInertiaTensorWorld()*infoGlobal.m_timeStep).cross(rel_pos2) + - rb1->getTotalForce()*rb1->getInvMass()*infoGlobal.m_timeStep).dot(solverConstraint.m_contactNormal2); - } - } - - solverConstraint.m_friction = cp.m_combinedFriction; - - if(!isFriction) - { - restitution = restitutionCurve(rel_vel, cp.m_combinedRestitution, infoGlobal.m_restitutionVelocityThreshold); - if (restitution <= btScalar(0.)) - { - restitution = 0.f; - } - } - } - - - ///warm starting (or zero if disabled) - //disable warmstarting for btMultiBody, it has issues gaining energy (==explosion) - if (0)//infoGlobal.m_solverMode & SOLVER_USE_WARMSTARTING) - { - solverConstraint.m_appliedImpulse = isFriction ? 0 : cp.m_appliedImpulse * infoGlobal.m_warmstartingFactor; - - if (solverConstraint.m_appliedImpulse) - { - if (multiBodyA) - { - btScalar impulse = solverConstraint.m_appliedImpulse; - btScalar* deltaV = &m_data.m_deltaVelocitiesUnitImpulse[solverConstraint.m_jacAindex]; - multiBodyA->applyDeltaVeeMultiDof(deltaV,impulse); - - applyDeltaVee(deltaV,impulse,solverConstraint.m_deltaVelAindex,ndofA); - } else - { - if (rb0) - bodyA->internalApplyImpulse(solverConstraint.m_contactNormal1*bodyA->internalGetInvMass()*rb0->getLinearFactor(),solverConstraint.m_angularComponentA,solverConstraint.m_appliedImpulse); - } - if (multiBodyB) - { - btScalar impulse = solverConstraint.m_appliedImpulse; - btScalar* deltaV = &m_data.m_deltaVelocitiesUnitImpulse[solverConstraint.m_jacBindex]; - multiBodyB->applyDeltaVeeMultiDof(deltaV,impulse); - applyDeltaVee(deltaV,impulse,solverConstraint.m_deltaVelBindex,ndofB); - } else - { - if (rb1) - bodyB->internalApplyImpulse(-solverConstraint.m_contactNormal2*bodyB->internalGetInvMass()*rb1->getLinearFactor(),-solverConstraint.m_angularComponentB,-(btScalar)solverConstraint.m_appliedImpulse); - } - } - } else - { - solverConstraint.m_appliedImpulse = 0.f; - } - - solverConstraint.m_appliedPushImpulse = 0.f; - - { - - btScalar positionalError = 0.f; - btScalar velocityError = restitution - rel_vel;// * damping; //note for friction restitution is always set to 0 (check above) so it is acutally velocityError = -rel_vel for friction - if (isFriction) - { - positionalError = -distance * erp/infoGlobal.m_timeStep; - } else - { - if (distance>0) - { - positionalError = 0; - velocityError -= distance / infoGlobal.m_timeStep; - - } else - { - positionalError = -distance * erp/infoGlobal.m_timeStep; - } - } - - btScalar penetrationImpulse = positionalError*solverConstraint.m_jacDiagABInv; - btScalar velocityImpulse = velocityError *solverConstraint.m_jacDiagABInv; - - if(!isFriction) - { - // if (!infoGlobal.m_splitImpulse || (penetration > infoGlobal.m_splitImpulsePenetrationThreshold)) - { - //combine position and velocity into rhs - solverConstraint.m_rhs = penetrationImpulse+velocityImpulse; - solverConstraint.m_rhsPenetration = 0.f; - - } - /*else - { - //split position and velocity into rhs and m_rhsPenetration - solverConstraint.m_rhs = velocityImpulse; - solverConstraint.m_rhsPenetration = penetrationImpulse; - } - */ - solverConstraint.m_lowerLimit = 0; - solverConstraint.m_upperLimit = 1e10f; - } - else - { - solverConstraint.m_rhs = penetrationImpulse+velocityImpulse; - solverConstraint.m_rhsPenetration = 0.f; - solverConstraint.m_lowerLimit = -solverConstraint.m_friction; - solverConstraint.m_upperLimit = solverConstraint.m_friction; - } - - solverConstraint.m_cfm = cfm*solverConstraint.m_jacDiagABInv; - - - - } - -} - -void btMultiBodyConstraintSolver::setupMultiBodyTorsionalFrictionConstraint(btMultiBodySolverConstraint& solverConstraint, - const btVector3& constraintNormal, - btManifoldPoint& cp, - btScalar combinedTorsionalFriction, - const btContactSolverInfo& infoGlobal, - btScalar& relaxation, - bool isFriction, btScalar desiredVelocity, btScalar cfmSlip) -{ - - BT_PROFILE("setupMultiBodyRollingFrictionConstraint"); - btVector3 rel_pos1; - btVector3 rel_pos2; - - btMultiBody* multiBodyA = solverConstraint.m_multiBodyA; - btMultiBody* multiBodyB = solverConstraint.m_multiBodyB; - - const btVector3& pos1 = cp.getPositionWorldOnA(); - const btVector3& pos2 = cp.getPositionWorldOnB(); - - btSolverBody* bodyA = multiBodyA ? 0 : &m_tmpSolverBodyPool[solverConstraint.m_solverBodyIdA]; - btSolverBody* bodyB = multiBodyB ? 0 : &m_tmpSolverBodyPool[solverConstraint.m_solverBodyIdB]; - - btRigidBody* rb0 = multiBodyA ? 0 : bodyA->m_originalBody; - btRigidBody* rb1 = multiBodyB ? 0 : bodyB->m_originalBody; - - if (bodyA) - rel_pos1 = pos1 - bodyA->getWorldTransform().getOrigin(); - if (bodyB) - rel_pos2 = pos2 - bodyB->getWorldTransform().getOrigin(); - - relaxation = infoGlobal.m_sor; - - // btScalar invTimeStep = btScalar(1)/infoGlobal.m_timeStep; - - - if (multiBodyA) - { - if (solverConstraint.m_linkA<0) - { - rel_pos1 = pos1 - multiBodyA->getBasePos(); - } else - { - rel_pos1 = pos1 - multiBodyA->getLink(solverConstraint.m_linkA).m_cachedWorldTransform.getOrigin(); - } - const int ndofA = multiBodyA->getNumDofs() + 6; - - solverConstraint.m_deltaVelAindex = multiBodyA->getCompanionId(); - - if (solverConstraint.m_deltaVelAindex <0) - { - solverConstraint.m_deltaVelAindex = m_data.m_deltaVelocities.size(); - multiBodyA->setCompanionId(solverConstraint.m_deltaVelAindex); - m_data.m_deltaVelocities.resize(m_data.m_deltaVelocities.size()+ndofA); - } else - { - btAssert(m_data.m_deltaVelocities.size() >= solverConstraint.m_deltaVelAindex+ndofA); - } - - solverConstraint.m_jacAindex = m_data.m_jacobians.size(); - m_data.m_jacobians.resize(m_data.m_jacobians.size()+ndofA); - m_data.m_deltaVelocitiesUnitImpulse.resize(m_data.m_deltaVelocitiesUnitImpulse.size()+ndofA); - btAssert(m_data.m_jacobians.size() == m_data.m_deltaVelocitiesUnitImpulse.size()); - - btScalar* jac1=&m_data.m_jacobians[solverConstraint.m_jacAindex]; - multiBodyA->fillConstraintJacobianMultiDof(solverConstraint.m_linkA, cp.getPositionWorldOnA(), constraintNormal, btVector3(0,0,0), jac1, m_data.scratch_r, m_data.scratch_v, m_data.scratch_m); - btScalar* delta = &m_data.m_deltaVelocitiesUnitImpulse[solverConstraint.m_jacAindex]; - multiBodyA->calcAccelerationDeltasMultiDof(&m_data.m_jacobians[solverConstraint.m_jacAindex],delta,m_data.scratch_r, m_data.scratch_v); - - btVector3 torqueAxis0 = -constraintNormal; - solverConstraint.m_relpos1CrossNormal = torqueAxis0; - solverConstraint.m_contactNormal1 = btVector3(0,0,0); - } else - { - btVector3 torqueAxis0 = -constraintNormal; - solverConstraint.m_relpos1CrossNormal = torqueAxis0; - solverConstraint.m_contactNormal1 = btVector3(0,0,0); - solverConstraint.m_angularComponentA = rb0 ? rb0->getInvInertiaTensorWorld()*torqueAxis0*rb0->getAngularFactor() : btVector3(0,0,0); - } - - - - if (multiBodyB) - { - if (solverConstraint.m_linkB<0) - { - rel_pos2 = pos2 - multiBodyB->getBasePos(); - } else - { - rel_pos2 = pos2 - multiBodyB->getLink(solverConstraint.m_linkB).m_cachedWorldTransform.getOrigin(); - } - - const int ndofB = multiBodyB->getNumDofs() + 6; - - solverConstraint.m_deltaVelBindex = multiBodyB->getCompanionId(); - if (solverConstraint.m_deltaVelBindex <0) - { - solverConstraint.m_deltaVelBindex = m_data.m_deltaVelocities.size(); - multiBodyB->setCompanionId(solverConstraint.m_deltaVelBindex); - m_data.m_deltaVelocities.resize(m_data.m_deltaVelocities.size()+ndofB); - } - - solverConstraint.m_jacBindex = m_data.m_jacobians.size(); - - m_data.m_jacobians.resize(m_data.m_jacobians.size()+ndofB); - m_data.m_deltaVelocitiesUnitImpulse.resize(m_data.m_deltaVelocitiesUnitImpulse.size()+ndofB); - btAssert(m_data.m_jacobians.size() == m_data.m_deltaVelocitiesUnitImpulse.size()); - - multiBodyB->fillConstraintJacobianMultiDof(solverConstraint.m_linkB, cp.getPositionWorldOnB(), -constraintNormal, btVector3(0,0,0), &m_data.m_jacobians[solverConstraint.m_jacBindex], m_data.scratch_r, m_data.scratch_v, m_data.scratch_m); - multiBodyB->calcAccelerationDeltasMultiDof(&m_data.m_jacobians[solverConstraint.m_jacBindex],&m_data.m_deltaVelocitiesUnitImpulse[solverConstraint.m_jacBindex],m_data.scratch_r, m_data.scratch_v); - - btVector3 torqueAxis1 = constraintNormal; - solverConstraint.m_relpos2CrossNormal = torqueAxis1; - solverConstraint.m_contactNormal2 = -btVector3(0,0,0); - - } else - { - btVector3 torqueAxis1 = constraintNormal; - solverConstraint.m_relpos2CrossNormal = torqueAxis1; - solverConstraint.m_contactNormal2 = -btVector3(0,0,0); - - solverConstraint.m_angularComponentB = rb1 ? rb1->getInvInertiaTensorWorld()*torqueAxis1*rb1->getAngularFactor() : btVector3(0,0,0); - } - - { - - btScalar denom0 = 0.f; - btScalar denom1 = 0.f; - btScalar* jacB = 0; - btScalar* jacA = 0; - btScalar* lambdaA =0; - btScalar* lambdaB =0; - int ndofA = 0; - if (multiBodyA) - { - ndofA = multiBodyA->getNumDofs() + 6; - jacA = &m_data.m_jacobians[solverConstraint.m_jacAindex]; - lambdaA = &m_data.m_deltaVelocitiesUnitImpulse[solverConstraint.m_jacAindex]; - for (int i = 0; i < ndofA; ++i) - { - btScalar j = jacA[i] ; - btScalar l =lambdaA[i]; - denom0 += j*l; - } - } else - { - if (rb0) - { - btVector3 iMJaA = rb0?rb0->getInvInertiaTensorWorld()*solverConstraint.m_relpos1CrossNormal:btVector3(0,0,0); - denom0 = iMJaA.dot(solverConstraint.m_relpos1CrossNormal); - } - } - if (multiBodyB) - { - const int ndofB = multiBodyB->getNumDofs() + 6; - jacB = &m_data.m_jacobians[solverConstraint.m_jacBindex]; - lambdaB = &m_data.m_deltaVelocitiesUnitImpulse[solverConstraint.m_jacBindex]; - for (int i = 0; i < ndofB; ++i) - { - btScalar j = jacB[i] ; - btScalar l =lambdaB[i]; - denom1 += j*l; - } - - } else - { - if (rb1) - { - btVector3 iMJaB = rb1?rb1->getInvInertiaTensorWorld()*solverConstraint.m_relpos2CrossNormal:btVector3(0,0,0); - denom1 = iMJaB.dot(solverConstraint.m_relpos2CrossNormal); - } - } - - - - btScalar d = denom0+denom1+infoGlobal.m_globalCfm; - if (d>SIMD_EPSILON) - { - solverConstraint.m_jacDiagABInv = relaxation/(d); - } else - { - //disable the constraint row to handle singularity/redundant constraint - solverConstraint.m_jacDiagABInv = 0.f; - } - - } - - - //compute rhs and remaining solverConstraint fields - - - - btScalar restitution = 0.f; - btScalar penetration = isFriction? 0 : cp.getDistance(); - - btScalar rel_vel = 0.f; - int ndofA = 0; - int ndofB = 0; - { - - btVector3 vel1,vel2; - if (multiBodyA) - { - ndofA = multiBodyA->getNumDofs() + 6; - btScalar* jacA = &m_data.m_jacobians[solverConstraint.m_jacAindex]; - for (int i = 0; i < ndofA ; ++i) - rel_vel += multiBodyA->getVelocityVector()[i] * jacA[i]; - } else - { - if (rb0) - { - btSolverBody* solverBodyA = &m_tmpSolverBodyPool[solverConstraint.m_solverBodyIdA]; - rel_vel += solverConstraint.m_contactNormal1.dot(rb0?solverBodyA->m_linearVelocity+solverBodyA->m_externalForceImpulse:btVector3(0,0,0)) - + solverConstraint.m_relpos1CrossNormal.dot(rb0?solverBodyA->m_angularVelocity:btVector3(0,0,0)); - - } - } - if (multiBodyB) - { - ndofB = multiBodyB->getNumDofs() + 6; - btScalar* jacB = &m_data.m_jacobians[solverConstraint.m_jacBindex]; - for (int i = 0; i < ndofB ; ++i) - rel_vel += multiBodyB->getVelocityVector()[i] * jacB[i]; - - } else - { - if (rb1) - { - btSolverBody* solverBodyB = &m_tmpSolverBodyPool[solverConstraint.m_solverBodyIdB]; - rel_vel += solverConstraint.m_contactNormal2.dot(rb1?solverBodyB->m_linearVelocity+solverBodyB->m_externalForceImpulse:btVector3(0,0,0)) - + solverConstraint.m_relpos2CrossNormal.dot(rb1?solverBodyB->m_angularVelocity:btVector3(0,0,0)); - - } - } - - solverConstraint.m_friction =combinedTorsionalFriction; - - if(!isFriction) - { - restitution = restitutionCurve(rel_vel, cp.m_combinedRestitution, infoGlobal.m_restitutionVelocityThreshold); - if (restitution <= btScalar(0.)) - { - restitution = 0.f; - } - } - } - - - solverConstraint.m_appliedImpulse = 0.f; - solverConstraint.m_appliedPushImpulse = 0.f; - - { - - btScalar velocityError = 0 - rel_vel;// * damping; //note for friction restitution is always set to 0 (check above) so it is acutally velocityError = -rel_vel for friction - - - - btScalar velocityImpulse = velocityError*solverConstraint.m_jacDiagABInv; - - solverConstraint.m_rhs = velocityImpulse; - solverConstraint.m_rhsPenetration = 0.f; - solverConstraint.m_lowerLimit = -solverConstraint.m_friction; - solverConstraint.m_upperLimit = solverConstraint.m_friction; - - solverConstraint.m_cfm = infoGlobal.m_globalCfm*solverConstraint.m_jacDiagABInv; - - - - } - -} - -btMultiBodySolverConstraint& btMultiBodyConstraintSolver::addMultiBodyFrictionConstraint(const btVector3& normalAxis,btPersistentManifold* manifold,int frictionIndex,btManifoldPoint& cp,btCollisionObject* colObj0,btCollisionObject* colObj1, btScalar relaxation, const btContactSolverInfo& infoGlobal, btScalar desiredVelocity, btScalar cfmSlip) -{ - BT_PROFILE("addMultiBodyFrictionConstraint"); - btMultiBodySolverConstraint& solverConstraint = m_multiBodyFrictionContactConstraints.expandNonInitializing(); - solverConstraint.m_orgConstraint = 0; - solverConstraint.m_orgDofIndex = -1; - - solverConstraint.m_frictionIndex = frictionIndex; - bool isFriction = true; - - const btMultiBodyLinkCollider* fcA = btMultiBodyLinkCollider::upcast(manifold->getBody0()); - const btMultiBodyLinkCollider* fcB = btMultiBodyLinkCollider::upcast(manifold->getBody1()); - - btMultiBody* mbA = fcA? fcA->m_multiBody : 0; - btMultiBody* mbB = fcB? fcB->m_multiBody : 0; - - int solverBodyIdA = mbA? -1 : getOrInitSolverBody(*colObj0,infoGlobal.m_timeStep); - int solverBodyIdB = mbB ? -1 : getOrInitSolverBody(*colObj1,infoGlobal.m_timeStep); - - solverConstraint.m_solverBodyIdA = solverBodyIdA; - solverConstraint.m_solverBodyIdB = solverBodyIdB; - solverConstraint.m_multiBodyA = mbA; - if (mbA) - solverConstraint.m_linkA = fcA->m_link; - - solverConstraint.m_multiBodyB = mbB; - if (mbB) - solverConstraint.m_linkB = fcB->m_link; - - solverConstraint.m_originalContactPoint = &cp; - - setupMultiBodyContactConstraint(solverConstraint, normalAxis, cp, infoGlobal,relaxation,isFriction, desiredVelocity, cfmSlip); - return solverConstraint; -} - -btMultiBodySolverConstraint& btMultiBodyConstraintSolver::addMultiBodyTorsionalFrictionConstraint(const btVector3& normalAxis,btPersistentManifold* manifold,int frictionIndex,btManifoldPoint& cp, - btScalar combinedTorsionalFriction, - btCollisionObject* colObj0,btCollisionObject* colObj1, btScalar relaxation, const btContactSolverInfo& infoGlobal, btScalar desiredVelocity, btScalar cfmSlip) -{ - BT_PROFILE("addMultiBodyRollingFrictionConstraint"); - btMultiBodySolverConstraint& solverConstraint = m_multiBodyFrictionContactConstraints.expandNonInitializing(); - solverConstraint.m_orgConstraint = 0; - solverConstraint.m_orgDofIndex = -1; - - solverConstraint.m_frictionIndex = frictionIndex; - bool isFriction = true; - - const btMultiBodyLinkCollider* fcA = btMultiBodyLinkCollider::upcast(manifold->getBody0()); - const btMultiBodyLinkCollider* fcB = btMultiBodyLinkCollider::upcast(manifold->getBody1()); - - btMultiBody* mbA = fcA? fcA->m_multiBody : 0; - btMultiBody* mbB = fcB? fcB->m_multiBody : 0; - - int solverBodyIdA = mbA? -1 : getOrInitSolverBody(*colObj0,infoGlobal.m_timeStep); - int solverBodyIdB = mbB ? -1 : getOrInitSolverBody(*colObj1,infoGlobal.m_timeStep); - - solverConstraint.m_solverBodyIdA = solverBodyIdA; - solverConstraint.m_solverBodyIdB = solverBodyIdB; - solverConstraint.m_multiBodyA = mbA; - if (mbA) - solverConstraint.m_linkA = fcA->m_link; - - solverConstraint.m_multiBodyB = mbB; - if (mbB) - solverConstraint.m_linkB = fcB->m_link; - - solverConstraint.m_originalContactPoint = &cp; - - setupMultiBodyTorsionalFrictionConstraint(solverConstraint, normalAxis, cp, combinedTorsionalFriction,infoGlobal,relaxation,isFriction, desiredVelocity, cfmSlip); - return solverConstraint; -} - -void btMultiBodyConstraintSolver::convertMultiBodyContact(btPersistentManifold* manifold,const btContactSolverInfo& infoGlobal) -{ - const btMultiBodyLinkCollider* fcA = btMultiBodyLinkCollider::upcast(manifold->getBody0()); - const btMultiBodyLinkCollider* fcB = btMultiBodyLinkCollider::upcast(manifold->getBody1()); - - btMultiBody* mbA = fcA? fcA->m_multiBody : 0; - btMultiBody* mbB = fcB? fcB->m_multiBody : 0; - - btCollisionObject* colObj0=0,*colObj1=0; - - colObj0 = (btCollisionObject*)manifold->getBody0(); - colObj1 = (btCollisionObject*)manifold->getBody1(); - - int solverBodyIdA = mbA? -1 : getOrInitSolverBody(*colObj0,infoGlobal.m_timeStep); - int solverBodyIdB = mbB ? -1 : getOrInitSolverBody(*colObj1,infoGlobal.m_timeStep); - -// btSolverBody* solverBodyA = mbA ? 0 : &m_tmpSolverBodyPool[solverBodyIdA]; -// btSolverBody* solverBodyB = mbB ? 0 : &m_tmpSolverBodyPool[solverBodyIdB]; - - - ///avoid collision response between two static objects -// if (!solverBodyA || (solverBodyA->m_invMass.isZero() && (!solverBodyB || solverBodyB->m_invMass.isZero()))) - // return; - - //only a single rollingFriction per manifold - int rollingFriction=1; - - for (int j=0;j<manifold->getNumContacts();j++) - { - - btManifoldPoint& cp = manifold->getContactPoint(j); - - if (cp.getDistance() <= manifold->getContactProcessingThreshold()) - { - - btScalar relaxation; - - int frictionIndex = m_multiBodyNormalContactConstraints.size(); - - btMultiBodySolverConstraint& solverConstraint = m_multiBodyNormalContactConstraints.expandNonInitializing(); - - // btRigidBody* rb0 = btRigidBody::upcast(colObj0); - // btRigidBody* rb1 = btRigidBody::upcast(colObj1); - solverConstraint.m_orgConstraint = 0; - solverConstraint.m_orgDofIndex = -1; - solverConstraint.m_solverBodyIdA = solverBodyIdA; - solverConstraint.m_solverBodyIdB = solverBodyIdB; - solverConstraint.m_multiBodyA = mbA; - if (mbA) - solverConstraint.m_linkA = fcA->m_link; - - solverConstraint.m_multiBodyB = mbB; - if (mbB) - solverConstraint.m_linkB = fcB->m_link; - - solverConstraint.m_originalContactPoint = &cp; - - bool isFriction = false; - setupMultiBodyContactConstraint(solverConstraint, cp.m_normalWorldOnB,cp, infoGlobal, relaxation, isFriction); - -// const btVector3& pos1 = cp.getPositionWorldOnA(); -// const btVector3& pos2 = cp.getPositionWorldOnB(); - - /////setup the friction constraints -#define ENABLE_FRICTION -#ifdef ENABLE_FRICTION - solverConstraint.m_frictionIndex = frictionIndex; - - ///Bullet has several options to set the friction directions - ///By default, each contact has only a single friction direction that is recomputed automatically every frame - ///based on the relative linear velocity. - ///If the relative velocity is zero, it will automatically compute a friction direction. - - ///You can also enable two friction directions, using the SOLVER_USE_2_FRICTION_DIRECTIONS. - ///In that case, the second friction direction will be orthogonal to both contact normal and first friction direction. - /// - ///If you choose SOLVER_DISABLE_VELOCITY_DEPENDENT_FRICTION_DIRECTION, then the friction will be independent from the relative projected velocity. - /// - ///The user can manually override the friction directions for certain contacts using a contact callback, - ///and set the cp.m_lateralFrictionInitialized to true - ///In that case, you can set the target relative motion in each friction direction (cp.m_contactMotion1 and cp.m_contactMotion2) - ///this will give a conveyor belt effect - /// - - btPlaneSpace1(cp.m_normalWorldOnB,cp.m_lateralFrictionDir1,cp.m_lateralFrictionDir2); - cp.m_lateralFrictionDir1.normalize(); - cp.m_lateralFrictionDir2.normalize(); - - if (rollingFriction > 0 ) - { - if (cp.m_combinedSpinningFriction>0) - { - addMultiBodyTorsionalFrictionConstraint(cp.m_normalWorldOnB,manifold,frictionIndex,cp,cp.m_combinedSpinningFriction, colObj0,colObj1, relaxation,infoGlobal); - } - if (cp.m_combinedRollingFriction>0) - { - - applyAnisotropicFriction(colObj0,cp.m_lateralFrictionDir1,btCollisionObject::CF_ANISOTROPIC_ROLLING_FRICTION); - applyAnisotropicFriction(colObj1,cp.m_lateralFrictionDir1,btCollisionObject::CF_ANISOTROPIC_ROLLING_FRICTION); - applyAnisotropicFriction(colObj0,cp.m_lateralFrictionDir2,btCollisionObject::CF_ANISOTROPIC_ROLLING_FRICTION); - applyAnisotropicFriction(colObj1,cp.m_lateralFrictionDir2,btCollisionObject::CF_ANISOTROPIC_ROLLING_FRICTION); - - if (cp.m_lateralFrictionDir1.length()>0.001) - addMultiBodyTorsionalFrictionConstraint(cp.m_lateralFrictionDir1,manifold,frictionIndex,cp,cp.m_combinedRollingFriction, colObj0,colObj1, relaxation,infoGlobal); - - if (cp.m_lateralFrictionDir2.length()>0.001) - addMultiBodyTorsionalFrictionConstraint(cp.m_lateralFrictionDir2,manifold,frictionIndex,cp,cp.m_combinedRollingFriction, colObj0,colObj1, relaxation,infoGlobal); - } - rollingFriction--; - } - if (!(infoGlobal.m_solverMode & SOLVER_ENABLE_FRICTION_DIRECTION_CACHING) || !(cp.m_contactPointFlags&BT_CONTACT_FLAG_LATERAL_FRICTION_INITIALIZED)) - {/* - cp.m_lateralFrictionDir1 = vel - cp.m_normalWorldOnB * rel_vel; - btScalar lat_rel_vel = cp.m_lateralFrictionDir1.length2(); - if (!(infoGlobal.m_solverMode & SOLVER_DISABLE_VELOCITY_DEPENDENT_FRICTION_DIRECTION) && lat_rel_vel > SIMD_EPSILON) - { - cp.m_lateralFrictionDir1 *= 1.f/btSqrt(lat_rel_vel); - if((infoGlobal.m_solverMode & SOLVER_USE_2_FRICTION_DIRECTIONS)) - { - cp.m_lateralFrictionDir2 = cp.m_lateralFrictionDir1.cross(cp.m_normalWorldOnB); - cp.m_lateralFrictionDir2.normalize();//?? - applyAnisotropicFriction(colObj0,cp.m_lateralFrictionDir2,btCollisionObject::CF_ANISOTROPIC_FRICTION); - applyAnisotropicFriction(colObj1,cp.m_lateralFrictionDir2,btCollisionObject::CF_ANISOTROPIC_FRICTION); - addMultiBodyFrictionConstraint(cp.m_lateralFrictionDir2,solverBodyIdA,solverBodyIdB,frictionIndex,cp,rel_pos1,rel_pos2,colObj0,colObj1, relaxation); - - } - - applyAnisotropicFriction(colObj0,cp.m_lateralFrictionDir1,btCollisionObject::CF_ANISOTROPIC_FRICTION); - applyAnisotropicFriction(colObj1,cp.m_lateralFrictionDir1,btCollisionObject::CF_ANISOTROPIC_FRICTION); - addMultiBodyFrictionConstraint(cp.m_lateralFrictionDir1,solverBodyIdA,solverBodyIdB,frictionIndex,cp,rel_pos1,rel_pos2,colObj0,colObj1, relaxation); - - } else - */ - { - - - applyAnisotropicFriction(colObj0,cp.m_lateralFrictionDir1,btCollisionObject::CF_ANISOTROPIC_FRICTION); - applyAnisotropicFriction(colObj1,cp.m_lateralFrictionDir1,btCollisionObject::CF_ANISOTROPIC_FRICTION); - addMultiBodyFrictionConstraint(cp.m_lateralFrictionDir1,manifold,frictionIndex,cp,colObj0,colObj1, relaxation,infoGlobal); - - - if ((infoGlobal.m_solverMode & SOLVER_USE_2_FRICTION_DIRECTIONS)) - { - applyAnisotropicFriction(colObj0,cp.m_lateralFrictionDir2,btCollisionObject::CF_ANISOTROPIC_FRICTION); - applyAnisotropicFriction(colObj1,cp.m_lateralFrictionDir2,btCollisionObject::CF_ANISOTROPIC_FRICTION); - addMultiBodyFrictionConstraint(cp.m_lateralFrictionDir2,manifold,frictionIndex,cp,colObj0,colObj1, relaxation,infoGlobal); - } - - if ((infoGlobal.m_solverMode & SOLVER_USE_2_FRICTION_DIRECTIONS) && (infoGlobal.m_solverMode & SOLVER_DISABLE_VELOCITY_DEPENDENT_FRICTION_DIRECTION)) - { - cp.m_contactPointFlags|=BT_CONTACT_FLAG_LATERAL_FRICTION_INITIALIZED; - } - } - - } else - { - addMultiBodyFrictionConstraint(cp.m_lateralFrictionDir1,manifold,frictionIndex,cp,colObj0,colObj1, relaxation,infoGlobal,cp.m_contactMotion1, cp.m_frictionCFM); - - if ((infoGlobal.m_solverMode & SOLVER_USE_2_FRICTION_DIRECTIONS)) - addMultiBodyFrictionConstraint(cp.m_lateralFrictionDir2,manifold,frictionIndex,cp,colObj0,colObj1, relaxation, infoGlobal,cp.m_contactMotion2, cp.m_frictionCFM); - - //setMultiBodyFrictionConstraintImpulse( solverConstraint, solverBodyIdA, solverBodyIdB, cp, infoGlobal); - //todo: - solverConstraint.m_appliedImpulse = 0.f; - solverConstraint.m_appliedPushImpulse = 0.f; - } - - -#endif //ENABLE_FRICTION - - } - } -} - -void btMultiBodyConstraintSolver::convertContacts(btPersistentManifold** manifoldPtr,int numManifolds, const btContactSolverInfo& infoGlobal) -{ - //btPersistentManifold* manifold = 0; - - for (int i=0;i<numManifolds;i++) - { - btPersistentManifold* manifold= manifoldPtr[i]; - const btMultiBodyLinkCollider* fcA = btMultiBodyLinkCollider::upcast(manifold->getBody0()); - const btMultiBodyLinkCollider* fcB = btMultiBodyLinkCollider::upcast(manifold->getBody1()); - if (!fcA && !fcB) - { - //the contact doesn't involve any Featherstone btMultiBody, so deal with the regular btRigidBody/btCollisionObject case - convertContact(manifold,infoGlobal); - } else - { - convertMultiBodyContact(manifold,infoGlobal); - } - } - - //also convert the multibody constraints, if any - - - for (int i=0;i<m_tmpNumMultiBodyConstraints;i++) - { - btMultiBodyConstraint* c = m_tmpMultiBodyConstraints[i]; - m_data.m_solverBodyPool = &m_tmpSolverBodyPool; - m_data.m_fixedBodyId = m_fixedBodyId; - - c->createConstraintRows(m_multiBodyNonContactConstraints,m_data, infoGlobal); - } - -} - - - -btScalar btMultiBodyConstraintSolver::solveGroup(btCollisionObject** bodies,int numBodies,btPersistentManifold** manifold,int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& info, btIDebugDraw* debugDrawer,btDispatcher* dispatcher) -{ - return btSequentialImpulseConstraintSolver::solveGroup(bodies,numBodies,manifold,numManifolds,constraints,numConstraints,info,debugDrawer,dispatcher); -} - -#if 0 -static void applyJointFeedback(btMultiBodyJacobianData& data, const btMultiBodySolverConstraint& solverConstraint, int jacIndex, btMultiBody* mb, btScalar appliedImpulse) -{ - if (appliedImpulse!=0 && mb->internalNeedsJointFeedback()) - { - //todo: get rid of those temporary memory allocations for the joint feedback - btAlignedObjectArray<btScalar> forceVector; - int numDofsPlusBase = 6+mb->getNumDofs(); - forceVector.resize(numDofsPlusBase); - for (int i=0;i<numDofsPlusBase;i++) - { - forceVector[i] = data.m_jacobians[jacIndex+i]*appliedImpulse; - } - btAlignedObjectArray<btScalar> output; - output.resize(numDofsPlusBase); - bool applyJointFeedback = true; - mb->calcAccelerationDeltasMultiDof(&forceVector[0],&output[0],data.scratch_r,data.scratch_v,applyJointFeedback); - } -} -#endif - - -void btMultiBodyConstraintSolver::writeBackSolverBodyToMultiBody(btMultiBodySolverConstraint& c, btScalar deltaTime) -{ -#if 1 - - //bod->addBaseForce(m_gravity * bod->getBaseMass()); - //bod->addLinkForce(j, m_gravity * bod->getLinkMass(j)); - - if (c.m_orgConstraint) - { - c.m_orgConstraint->internalSetAppliedImpulse(c.m_orgDofIndex,c.m_appliedImpulse); - } - - - if (c.m_multiBodyA) - { - - c.m_multiBodyA->setCompanionId(-1); - btVector3 force = c.m_contactNormal1*(c.m_appliedImpulse/deltaTime); - btVector3 torque = c.m_relpos1CrossNormal*(c.m_appliedImpulse/deltaTime); - if (c.m_linkA<0) - { - c.m_multiBodyA->addBaseConstraintForce(force); - c.m_multiBodyA->addBaseConstraintTorque(torque); - } else - { - c.m_multiBodyA->addLinkConstraintForce(c.m_linkA,force); - //b3Printf("force = %f,%f,%f\n",force[0],force[1],force[2]);//[0],torque[1],torque[2]); - c.m_multiBodyA->addLinkConstraintTorque(c.m_linkA,torque); - } - } - - if (c.m_multiBodyB) - { - { - c.m_multiBodyB->setCompanionId(-1); - btVector3 force = c.m_contactNormal2*(c.m_appliedImpulse/deltaTime); - btVector3 torque = c.m_relpos2CrossNormal*(c.m_appliedImpulse/deltaTime); - if (c.m_linkB<0) - { - c.m_multiBodyB->addBaseConstraintForce(force); - c.m_multiBodyB->addBaseConstraintTorque(torque); - } else - { - { - c.m_multiBodyB->addLinkConstraintForce(c.m_linkB,force); - //b3Printf("t = %f,%f,%f\n",force[0],force[1],force[2]);//[0],torque[1],torque[2]); - c.m_multiBodyB->addLinkConstraintTorque(c.m_linkB,torque); - } - - } - } - } -#endif - -#ifndef DIRECTLY_UPDATE_VELOCITY_DURING_SOLVER_ITERATIONS - - if (c.m_multiBodyA) - { - - if(c.m_multiBodyA->isMultiDof()) - { - c.m_multiBodyA->applyDeltaVeeMultiDof(&m_data.m_deltaVelocitiesUnitImpulse[c.m_jacAindex],c.m_appliedImpulse); - } - else - { - c.m_multiBodyA->applyDeltaVee(&m_data.m_deltaVelocitiesUnitImpulse[c.m_jacAindex],c.m_appliedImpulse); - } - } - - if (c.m_multiBodyB) - { - if(c.m_multiBodyB->isMultiDof()) - { - c.m_multiBodyB->applyDeltaVeeMultiDof(&m_data.m_deltaVelocitiesUnitImpulse[c.m_jacBindex],c.m_appliedImpulse); - } - else - { - c.m_multiBodyB->applyDeltaVee(&m_data.m_deltaVelocitiesUnitImpulse[c.m_jacBindex],c.m_appliedImpulse); - } - } -#endif - - - -} - -btScalar btMultiBodyConstraintSolver::solveGroupCacheFriendlyFinish(btCollisionObject** bodies,int numBodies,const btContactSolverInfo& infoGlobal) -{ - BT_PROFILE("btMultiBodyConstraintSolver::solveGroupCacheFriendlyFinish"); - int numPoolConstraints = m_multiBodyNormalContactConstraints.size(); - - - //write back the delta v to the multi bodies, either as applied impulse (direct velocity change) - //or as applied force, so we can measure the joint reaction forces easier - for (int i=0;i<numPoolConstraints;i++) - { - btMultiBodySolverConstraint& solverConstraint = m_multiBodyNormalContactConstraints[i]; - writeBackSolverBodyToMultiBody(solverConstraint,infoGlobal.m_timeStep); - - writeBackSolverBodyToMultiBody(m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex],infoGlobal.m_timeStep); - - if ((infoGlobal.m_solverMode & SOLVER_USE_2_FRICTION_DIRECTIONS)) - { - writeBackSolverBodyToMultiBody(m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex+1],infoGlobal.m_timeStep); - } - } - - - for (int i=0;i<m_multiBodyNonContactConstraints.size();i++) - { - btMultiBodySolverConstraint& solverConstraint = m_multiBodyNonContactConstraints[i]; - writeBackSolverBodyToMultiBody(solverConstraint,infoGlobal.m_timeStep); - } - - - if (infoGlobal.m_solverMode & SOLVER_USE_WARMSTARTING) - { - BT_PROFILE("warm starting write back"); - for (int j=0;j<numPoolConstraints;j++) - { - const btMultiBodySolverConstraint& solverConstraint = m_multiBodyNormalContactConstraints[j]; - btManifoldPoint* pt = (btManifoldPoint*) solverConstraint.m_originalContactPoint; - btAssert(pt); - pt->m_appliedImpulse = solverConstraint.m_appliedImpulse; - pt->m_appliedImpulseLateral1 = m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex].m_appliedImpulse; - - //printf("pt->m_appliedImpulseLateral1 = %f\n", pt->m_appliedImpulseLateral1); - if ((infoGlobal.m_solverMode & SOLVER_USE_2_FRICTION_DIRECTIONS)) - { - pt->m_appliedImpulseLateral2 = m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex+1].m_appliedImpulse; - } - //do a callback here? - } - } -#if 0 - //multibody joint feedback - { - BT_PROFILE("multi body joint feedback"); - for (int j=0;j<numPoolConstraints;j++) - { - const btMultiBodySolverConstraint& solverConstraint = m_multiBodyNormalContactConstraints[j]; - - //apply the joint feedback into all links of the btMultiBody - //todo: double-check the signs of the applied impulse - - if(solverConstraint.m_multiBodyA && solverConstraint.m_multiBodyA->isMultiDof()) - { - applyJointFeedback(m_data,solverConstraint, solverConstraint.m_jacAindex,solverConstraint.m_multiBodyA, solverConstraint.m_appliedImpulse*btSimdScalar(1./infoGlobal.m_timeStep)); - } - if(solverConstraint.m_multiBodyB && solverConstraint.m_multiBodyB->isMultiDof()) - { - applyJointFeedback(m_data,solverConstraint, solverConstraint.m_jacBindex,solverConstraint.m_multiBodyB,solverConstraint.m_appliedImpulse*btSimdScalar(-1./infoGlobal.m_timeStep)); - } -#if 0 - if (m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex].m_multiBodyA && m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex].m_multiBodyA->isMultiDof()) - { - applyJointFeedback(m_data,m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex], - m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex].m_jacAindex, - m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex].m_multiBodyA, - m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex].m_appliedImpulse*btSimdScalar(1./infoGlobal.m_timeStep)); - - } - if (m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex].m_multiBodyB && m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex].m_multiBodyB->isMultiDof()) - { - applyJointFeedback(m_data,m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex], - m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex].m_jacBindex, - m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex].m_multiBodyB, - m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex].m_appliedImpulse*btSimdScalar(-1./infoGlobal.m_timeStep)); - } - - if ((infoGlobal.m_solverMode & SOLVER_USE_2_FRICTION_DIRECTIONS)) - { - if (m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex+1].m_multiBodyA && m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex+1].m_multiBodyA->isMultiDof()) - { - applyJointFeedback(m_data,m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex+1], - m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex+1].m_jacAindex, - m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex+1].m_multiBodyA, - m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex+1].m_appliedImpulse*btSimdScalar(1./infoGlobal.m_timeStep)); - } - - if (m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex+1].m_multiBodyB && m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex+1].m_multiBodyB->isMultiDof()) - { - applyJointFeedback(m_data,m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex+1], - m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex+1].m_jacBindex, - m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex+1].m_multiBodyB, - m_multiBodyFrictionContactConstraints[solverConstraint.m_frictionIndex+1].m_appliedImpulse*btSimdScalar(-1./infoGlobal.m_timeStep)); - } - } -#endif - } - - for (int i=0;i<m_multiBodyNonContactConstraints.size();i++) - { - const btMultiBodySolverConstraint& solverConstraint = m_multiBodyNonContactConstraints[i]; - if(solverConstraint.m_multiBodyA && solverConstraint.m_multiBodyA->isMultiDof()) - { - applyJointFeedback(m_data,solverConstraint, solverConstraint.m_jacAindex,solverConstraint.m_multiBodyA, solverConstraint.m_appliedImpulse*btSimdScalar(1./infoGlobal.m_timeStep)); - } - if(solverConstraint.m_multiBodyB && solverConstraint.m_multiBodyB->isMultiDof()) - { - applyJointFeedback(m_data,solverConstraint, solverConstraint.m_jacBindex,solverConstraint.m_multiBodyB,solverConstraint.m_appliedImpulse*btSimdScalar(1./infoGlobal.m_timeStep)); - } - } - } - - numPoolConstraints = m_multiBodyNonContactConstraints.size(); - -#if 0 - //@todo: m_originalContactPoint is not initialized for btMultiBodySolverConstraint - for (int i=0;i<numPoolConstraints;i++) - { - const btMultiBodySolverConstraint& c = m_multiBodyNonContactConstraints[i]; - - btTypedConstraint* constr = (btTypedConstraint*)c.m_originalContactPoint; - btJointFeedback* fb = constr->getJointFeedback(); - if (fb) - { - fb->m_appliedForceBodyA += c.m_contactNormal1*c.m_appliedImpulse*constr->getRigidBodyA().getLinearFactor()/infoGlobal.m_timeStep; - fb->m_appliedForceBodyB += c.m_contactNormal2*c.m_appliedImpulse*constr->getRigidBodyB().getLinearFactor()/infoGlobal.m_timeStep; - fb->m_appliedTorqueBodyA += c.m_relpos1CrossNormal* constr->getRigidBodyA().getAngularFactor()*c.m_appliedImpulse/infoGlobal.m_timeStep; - fb->m_appliedTorqueBodyB += c.m_relpos2CrossNormal* constr->getRigidBodyB().getAngularFactor()*c.m_appliedImpulse/infoGlobal.m_timeStep; /*RGM ???? */ - - } - - constr->internalSetAppliedImpulse(c.m_appliedImpulse); - if (btFabs(c.m_appliedImpulse)>=constr->getBreakingImpulseThreshold()) - { - constr->setEnabled(false); - } - - } -#endif -#endif - - return btSequentialImpulseConstraintSolver::solveGroupCacheFriendlyFinish(bodies,numBodies,infoGlobal); -} - - -void btMultiBodyConstraintSolver::solveMultiBodyGroup(btCollisionObject** bodies,int numBodies,btPersistentManifold** manifold,int numManifolds,btTypedConstraint** constraints,int numConstraints,btMultiBodyConstraint** multiBodyConstraints, int numMultiBodyConstraints, const btContactSolverInfo& info, btIDebugDraw* debugDrawer,btDispatcher* dispatcher) -{ - //printf("solveMultiBodyGroup start\n"); - m_tmpMultiBodyConstraints = multiBodyConstraints; - m_tmpNumMultiBodyConstraints = numMultiBodyConstraints; - - btSequentialImpulseConstraintSolver::solveGroup(bodies,numBodies,manifold,numManifolds,constraints,numConstraints,info,debugDrawer,dispatcher); - - m_tmpMultiBodyConstraints = 0; - m_tmpNumMultiBodyConstraints = 0; - - -} diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyConstraintSolver.h b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyConstraintSolver.h deleted file mode 100644 index 489347d874..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyConstraintSolver.h +++ /dev/null @@ -1,100 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_MULTIBODY_CONSTRAINT_SOLVER_H -#define BT_MULTIBODY_CONSTRAINT_SOLVER_H - -#include "BulletDynamics/ConstraintSolver/btSequentialImpulseConstraintSolver.h" -#include "btMultiBodySolverConstraint.h" - -#define DIRECTLY_UPDATE_VELOCITY_DURING_SOLVER_ITERATIONS - -class btMultiBody; - -#include "btMultiBodyConstraint.h" - - - -ATTRIBUTE_ALIGNED16(class) btMultiBodyConstraintSolver : public btSequentialImpulseConstraintSolver -{ - -protected: - - btMultiBodyConstraintArray m_multiBodyNonContactConstraints; - - btMultiBodyConstraintArray m_multiBodyNormalContactConstraints; - btMultiBodyConstraintArray m_multiBodyFrictionContactConstraints; - - btMultiBodyJacobianData m_data; - - //temp storage for multi body constraints for a specific island/group called by 'solveGroup' - btMultiBodyConstraint** m_tmpMultiBodyConstraints; - int m_tmpNumMultiBodyConstraints; - - btScalar resolveSingleConstraintRowGeneric(const btMultiBodySolverConstraint& c); - - - void convertContacts(btPersistentManifold** manifoldPtr,int numManifolds, const btContactSolverInfo& infoGlobal); - - btMultiBodySolverConstraint& addMultiBodyFrictionConstraint(const btVector3& normalAxis,btPersistentManifold* manifold,int frictionIndex,btManifoldPoint& cp,btCollisionObject* colObj0,btCollisionObject* colObj1, btScalar relaxation, const btContactSolverInfo& infoGlobal, btScalar desiredVelocity=0, btScalar cfmSlip=0); - - btMultiBodySolverConstraint& addMultiBodyTorsionalFrictionConstraint(const btVector3& normalAxis,btPersistentManifold* manifold,int frictionIndex,btManifoldPoint& cp, - btScalar combinedTorsionalFriction, - btCollisionObject* colObj0,btCollisionObject* colObj1, btScalar relaxation, const btContactSolverInfo& infoGlobal, btScalar desiredVelocity=0, btScalar cfmSlip=0); - - void setupMultiBodyJointLimitConstraint(btMultiBodySolverConstraint& constraintRow, - btScalar* jacA,btScalar* jacB, - btScalar penetration,btScalar combinedFrictionCoeff, btScalar combinedRestitutionCoeff, - const btContactSolverInfo& infoGlobal); - - void setupMultiBodyContactConstraint(btMultiBodySolverConstraint& solverConstraint, - const btVector3& contactNormal, - btManifoldPoint& cp, const btContactSolverInfo& infoGlobal, - btScalar& relaxation, - bool isFriction, btScalar desiredVelocity=0, btScalar cfmSlip=0); - - //either rolling or spinning friction - void setupMultiBodyTorsionalFrictionConstraint(btMultiBodySolverConstraint& solverConstraint, - const btVector3& contactNormal, - btManifoldPoint& cp, - btScalar combinedTorsionalFriction, - const btContactSolverInfo& infoGlobal, - btScalar& relaxation, - bool isFriction, btScalar desiredVelocity=0, btScalar cfmSlip=0); - - void convertMultiBodyContact(btPersistentManifold* manifold,const btContactSolverInfo& infoGlobal); - virtual btScalar solveGroupCacheFriendlySetup(btCollisionObject** bodies,int numBodies,btPersistentManifold** manifoldPtr, int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* debugDrawer); -// virtual btScalar solveGroupCacheFriendlyIterations(btCollisionObject** bodies,int numBodies,btPersistentManifold** manifoldPtr, int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* debugDrawer); - - virtual btScalar solveSingleIteration(int iteration, btCollisionObject** bodies ,int numBodies,btPersistentManifold** manifoldPtr, int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* debugDrawer); - void applyDeltaVee(btScalar* deltaV, btScalar impulse, int velocityIndex, int ndof); - void writeBackSolverBodyToMultiBody(btMultiBodySolverConstraint& constraint, btScalar deltaTime); -public: - - BT_DECLARE_ALIGNED_ALLOCATOR(); - - ///this method should not be called, it was just used during porting/integration of Featherstone btMultiBody, providing backwards compatibility but no support for btMultiBodyConstraint (only contact constraints) - virtual btScalar solveGroup(btCollisionObject** bodies,int numBodies,btPersistentManifold** manifold,int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& info, btIDebugDraw* debugDrawer,btDispatcher* dispatcher); - virtual btScalar solveGroupCacheFriendlyFinish(btCollisionObject** bodies,int numBodies,const btContactSolverInfo& infoGlobal); - - virtual void solveMultiBodyGroup(btCollisionObject** bodies,int numBodies,btPersistentManifold** manifold,int numManifolds,btTypedConstraint** constraints,int numConstraints,btMultiBodyConstraint** multiBodyConstraints, int numMultiBodyConstraints, const btContactSolverInfo& info, btIDebugDraw* debugDrawer,btDispatcher* dispatcher); -}; - - - - - -#endif //BT_MULTIBODY_CONSTRAINT_SOLVER_H - diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyDynamicsWorld.cpp b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyDynamicsWorld.cpp deleted file mode 100644 index 9eacc22647..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyDynamicsWorld.cpp +++ /dev/null @@ -1,991 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#include "btMultiBodyDynamicsWorld.h" -#include "btMultiBodyConstraintSolver.h" -#include "btMultiBody.h" -#include "btMultiBodyLinkCollider.h" -#include "BulletCollision/CollisionDispatch/btSimulationIslandManager.h" -#include "LinearMath/btQuickprof.h" -#include "btMultiBodyConstraint.h" -#include "LinearMath/btIDebugDraw.h" -#include "LinearMath/btSerializer.h" - - -void btMultiBodyDynamicsWorld::addMultiBody(btMultiBody* body, int group, int mask) -{ - m_multiBodies.push_back(body); - -} - -void btMultiBodyDynamicsWorld::removeMultiBody(btMultiBody* body) -{ - m_multiBodies.remove(body); -} - -void btMultiBodyDynamicsWorld::calculateSimulationIslands() -{ - BT_PROFILE("calculateSimulationIslands"); - - getSimulationIslandManager()->updateActivationState(getCollisionWorld(),getCollisionWorld()->getDispatcher()); - - { - //merge islands based on speculative contact manifolds too - for (int i=0;i<this->m_predictiveManifolds.size();i++) - { - btPersistentManifold* manifold = m_predictiveManifolds[i]; - - const btCollisionObject* colObj0 = manifold->getBody0(); - const btCollisionObject* colObj1 = manifold->getBody1(); - - if (((colObj0) && (!(colObj0)->isStaticOrKinematicObject())) && - ((colObj1) && (!(colObj1)->isStaticOrKinematicObject()))) - { - getSimulationIslandManager()->getUnionFind().unite((colObj0)->getIslandTag(),(colObj1)->getIslandTag()); - } - } - } - - { - int i; - int numConstraints = int(m_constraints.size()); - for (i=0;i< numConstraints ; i++ ) - { - btTypedConstraint* constraint = m_constraints[i]; - if (constraint->isEnabled()) - { - const btRigidBody* colObj0 = &constraint->getRigidBodyA(); - const btRigidBody* colObj1 = &constraint->getRigidBodyB(); - - if (((colObj0) && (!(colObj0)->isStaticOrKinematicObject())) && - ((colObj1) && (!(colObj1)->isStaticOrKinematicObject()))) - { - getSimulationIslandManager()->getUnionFind().unite((colObj0)->getIslandTag(),(colObj1)->getIslandTag()); - } - } - } - } - - //merge islands linked by Featherstone link colliders - for (int i=0;i<m_multiBodies.size();i++) - { - btMultiBody* body = m_multiBodies[i]; - { - btMultiBodyLinkCollider* prev = body->getBaseCollider(); - - for (int b=0;b<body->getNumLinks();b++) - { - btMultiBodyLinkCollider* cur = body->getLink(b).m_collider; - - if (((cur) && (!(cur)->isStaticOrKinematicObject())) && - ((prev) && (!(prev)->isStaticOrKinematicObject()))) - { - int tagPrev = prev->getIslandTag(); - int tagCur = cur->getIslandTag(); - getSimulationIslandManager()->getUnionFind().unite(tagPrev, tagCur); - } - if (cur && !cur->isStaticOrKinematicObject()) - prev = cur; - - } - } - } - - //merge islands linked by multibody constraints - { - for (int i=0;i<this->m_multiBodyConstraints.size();i++) - { - btMultiBodyConstraint* c = m_multiBodyConstraints[i]; - int tagA = c->getIslandIdA(); - int tagB = c->getIslandIdB(); - if (tagA>=0 && tagB>=0) - getSimulationIslandManager()->getUnionFind().unite(tagA, tagB); - } - } - - //Store the island id in each body - getSimulationIslandManager()->storeIslandActivationState(getCollisionWorld()); - -} - - -void btMultiBodyDynamicsWorld::updateActivationState(btScalar timeStep) -{ - BT_PROFILE("btMultiBodyDynamicsWorld::updateActivationState"); - - - - for ( int i=0;i<m_multiBodies.size();i++) - { - btMultiBody* body = m_multiBodies[i]; - if (body) - { - body->checkMotionAndSleepIfRequired(timeStep); - if (!body->isAwake()) - { - btMultiBodyLinkCollider* col = body->getBaseCollider(); - if (col && col->getActivationState() == ACTIVE_TAG) - { - col->setActivationState( WANTS_DEACTIVATION); - col->setDeactivationTime(0.f); - } - for (int b=0;b<body->getNumLinks();b++) - { - btMultiBodyLinkCollider* col = body->getLink(b).m_collider; - if (col && col->getActivationState() == ACTIVE_TAG) - { - col->setActivationState( WANTS_DEACTIVATION); - col->setDeactivationTime(0.f); - } - } - } else - { - btMultiBodyLinkCollider* col = body->getBaseCollider(); - if (col && col->getActivationState() != DISABLE_DEACTIVATION) - col->setActivationState( ACTIVE_TAG ); - - for (int b=0;b<body->getNumLinks();b++) - { - btMultiBodyLinkCollider* col = body->getLink(b).m_collider; - if (col && col->getActivationState() != DISABLE_DEACTIVATION) - col->setActivationState( ACTIVE_TAG ); - } - } - - } - } - - btDiscreteDynamicsWorld::updateActivationState(timeStep); -} - - -SIMD_FORCE_INLINE int btGetConstraintIslandId2(const btTypedConstraint* lhs) -{ - int islandId; - - const btCollisionObject& rcolObj0 = lhs->getRigidBodyA(); - const btCollisionObject& rcolObj1 = lhs->getRigidBodyB(); - islandId= rcolObj0.getIslandTag()>=0?rcolObj0.getIslandTag():rcolObj1.getIslandTag(); - return islandId; - -} - - -class btSortConstraintOnIslandPredicate2 -{ - public: - - bool operator() ( const btTypedConstraint* lhs, const btTypedConstraint* rhs ) const - { - int rIslandId0,lIslandId0; - rIslandId0 = btGetConstraintIslandId2(rhs); - lIslandId0 = btGetConstraintIslandId2(lhs); - return lIslandId0 < rIslandId0; - } -}; - - - -SIMD_FORCE_INLINE int btGetMultiBodyConstraintIslandId(const btMultiBodyConstraint* lhs) -{ - int islandId; - - int islandTagA = lhs->getIslandIdA(); - int islandTagB = lhs->getIslandIdB(); - islandId= islandTagA>=0?islandTagA:islandTagB; - return islandId; - -} - - -class btSortMultiBodyConstraintOnIslandPredicate -{ - public: - - bool operator() ( const btMultiBodyConstraint* lhs, const btMultiBodyConstraint* rhs ) const - { - int rIslandId0,lIslandId0; - rIslandId0 = btGetMultiBodyConstraintIslandId(rhs); - lIslandId0 = btGetMultiBodyConstraintIslandId(lhs); - return lIslandId0 < rIslandId0; - } -}; - -struct MultiBodyInplaceSolverIslandCallback : public btSimulationIslandManager::IslandCallback -{ - btContactSolverInfo* m_solverInfo; - btMultiBodyConstraintSolver* m_solver; - btMultiBodyConstraint** m_multiBodySortedConstraints; - int m_numMultiBodyConstraints; - - btTypedConstraint** m_sortedConstraints; - int m_numConstraints; - btIDebugDraw* m_debugDrawer; - btDispatcher* m_dispatcher; - - btAlignedObjectArray<btCollisionObject*> m_bodies; - btAlignedObjectArray<btPersistentManifold*> m_manifolds; - btAlignedObjectArray<btTypedConstraint*> m_constraints; - btAlignedObjectArray<btMultiBodyConstraint*> m_multiBodyConstraints; - - - MultiBodyInplaceSolverIslandCallback( btMultiBodyConstraintSolver* solver, - btDispatcher* dispatcher) - :m_solverInfo(NULL), - m_solver(solver), - m_multiBodySortedConstraints(NULL), - m_numConstraints(0), - m_debugDrawer(NULL), - m_dispatcher(dispatcher) - { - - } - - MultiBodyInplaceSolverIslandCallback& operator=(MultiBodyInplaceSolverIslandCallback& other) - { - btAssert(0); - (void)other; - return *this; - } - - SIMD_FORCE_INLINE void setup ( btContactSolverInfo* solverInfo, btTypedConstraint** sortedConstraints, int numConstraints, btMultiBodyConstraint** sortedMultiBodyConstraints, int numMultiBodyConstraints, btIDebugDraw* debugDrawer) - { - btAssert(solverInfo); - m_solverInfo = solverInfo; - - m_multiBodySortedConstraints = sortedMultiBodyConstraints; - m_numMultiBodyConstraints = numMultiBodyConstraints; - m_sortedConstraints = sortedConstraints; - m_numConstraints = numConstraints; - - m_debugDrawer = debugDrawer; - m_bodies.resize (0); - m_manifolds.resize (0); - m_constraints.resize (0); - m_multiBodyConstraints.resize(0); - } - - - virtual void processIsland(btCollisionObject** bodies,int numBodies,btPersistentManifold** manifolds,int numManifolds, int islandId) - { - if (islandId<0) - { - ///we don't split islands, so all constraints/contact manifolds/bodies are passed into the solver regardless the island id - m_solver->solveMultiBodyGroup( bodies,numBodies,manifolds, numManifolds,m_sortedConstraints, m_numConstraints, &m_multiBodySortedConstraints[0],m_numConstraints,*m_solverInfo,m_debugDrawer,m_dispatcher); - } else - { - //also add all non-contact constraints/joints for this island - btTypedConstraint** startConstraint = 0; - btMultiBodyConstraint** startMultiBodyConstraint = 0; - - int numCurConstraints = 0; - int numCurMultiBodyConstraints = 0; - - int i; - - //find the first constraint for this island - - for (i=0;i<m_numConstraints;i++) - { - if (btGetConstraintIslandId2(m_sortedConstraints[i]) == islandId) - { - startConstraint = &m_sortedConstraints[i]; - break; - } - } - //count the number of constraints in this island - for (;i<m_numConstraints;i++) - { - if (btGetConstraintIslandId2(m_sortedConstraints[i]) == islandId) - { - numCurConstraints++; - } - } - - for (i=0;i<m_numMultiBodyConstraints;i++) - { - if (btGetMultiBodyConstraintIslandId(m_multiBodySortedConstraints[i]) == islandId) - { - - startMultiBodyConstraint = &m_multiBodySortedConstraints[i]; - break; - } - } - //count the number of multi body constraints in this island - for (;i<m_numMultiBodyConstraints;i++) - { - if (btGetMultiBodyConstraintIslandId(m_multiBodySortedConstraints[i]) == islandId) - { - numCurMultiBodyConstraints++; - } - } - - //if (m_solverInfo->m_minimumSolverBatchSize<=1) - //{ - // m_solver->solveGroup( bodies,numBodies,manifolds, numManifolds,startConstraint,numCurConstraints,*m_solverInfo,m_debugDrawer,m_dispatcher); - //} else - { - - for (i=0;i<numBodies;i++) - m_bodies.push_back(bodies[i]); - for (i=0;i<numManifolds;i++) - m_manifolds.push_back(manifolds[i]); - for (i=0;i<numCurConstraints;i++) - m_constraints.push_back(startConstraint[i]); - - for (i=0;i<numCurMultiBodyConstraints;i++) - m_multiBodyConstraints.push_back(startMultiBodyConstraint[i]); - - if ((m_constraints.size()+m_manifolds.size())>m_solverInfo->m_minimumSolverBatchSize) - { - processConstraints(); - } else - { - //printf("deferred\n"); - } - } - } - } - void processConstraints() - { - - btCollisionObject** bodies = m_bodies.size()? &m_bodies[0]:0; - btPersistentManifold** manifold = m_manifolds.size()?&m_manifolds[0]:0; - btTypedConstraint** constraints = m_constraints.size()?&m_constraints[0]:0; - btMultiBodyConstraint** multiBodyConstraints = m_multiBodyConstraints.size() ? &m_multiBodyConstraints[0] : 0; - - //printf("mb contacts = %d, mb constraints = %d\n", mbContacts, m_multiBodyConstraints.size()); - - m_solver->solveMultiBodyGroup( bodies,m_bodies.size(),manifold, m_manifolds.size(),constraints, m_constraints.size() ,multiBodyConstraints, m_multiBodyConstraints.size(), *m_solverInfo,m_debugDrawer,m_dispatcher); - m_bodies.resize(0); - m_manifolds.resize(0); - m_constraints.resize(0); - m_multiBodyConstraints.resize(0); - } - -}; - - - -btMultiBodyDynamicsWorld::btMultiBodyDynamicsWorld(btDispatcher* dispatcher,btBroadphaseInterface* pairCache,btMultiBodyConstraintSolver* constraintSolver,btCollisionConfiguration* collisionConfiguration) - :btDiscreteDynamicsWorld(dispatcher,pairCache,constraintSolver,collisionConfiguration), - m_multiBodyConstraintSolver(constraintSolver) -{ - //split impulse is not yet supported for Featherstone hierarchies -// getSolverInfo().m_splitImpulse = false; - getSolverInfo().m_solverMode |=SOLVER_USE_2_FRICTION_DIRECTIONS; - m_solverMultiBodyIslandCallback = new MultiBodyInplaceSolverIslandCallback(constraintSolver,dispatcher); -} - -btMultiBodyDynamicsWorld::~btMultiBodyDynamicsWorld () -{ - delete m_solverMultiBodyIslandCallback; -} - -void btMultiBodyDynamicsWorld::forwardKinematics() -{ - - for (int b=0;b<m_multiBodies.size();b++) - { - btMultiBody* bod = m_multiBodies[b]; - bod->forwardKinematics(m_scratch_world_to_local,m_scratch_local_origin); - } -} -void btMultiBodyDynamicsWorld::solveConstraints(btContactSolverInfo& solverInfo) -{ - forwardKinematics(); - - - - BT_PROFILE("solveConstraints"); - - m_sortedConstraints.resize( m_constraints.size()); - int i; - for (i=0;i<getNumConstraints();i++) - { - m_sortedConstraints[i] = m_constraints[i]; - } - m_sortedConstraints.quickSort(btSortConstraintOnIslandPredicate2()); - btTypedConstraint** constraintsPtr = getNumConstraints() ? &m_sortedConstraints[0] : 0; - - m_sortedMultiBodyConstraints.resize(m_multiBodyConstraints.size()); - for (i=0;i<m_multiBodyConstraints.size();i++) - { - m_sortedMultiBodyConstraints[i] = m_multiBodyConstraints[i]; - } - m_sortedMultiBodyConstraints.quickSort(btSortMultiBodyConstraintOnIslandPredicate()); - - btMultiBodyConstraint** sortedMultiBodyConstraints = m_sortedMultiBodyConstraints.size() ? &m_sortedMultiBodyConstraints[0] : 0; - - - m_solverMultiBodyIslandCallback->setup(&solverInfo,constraintsPtr,m_sortedConstraints.size(),sortedMultiBodyConstraints,m_sortedMultiBodyConstraints.size(), getDebugDrawer()); - m_constraintSolver->prepareSolve(getCollisionWorld()->getNumCollisionObjects(), getCollisionWorld()->getDispatcher()->getNumManifolds()); - - /// solve all the constraints for this island - m_islandManager->buildAndProcessIslands(getCollisionWorld()->getDispatcher(),getCollisionWorld(),m_solverMultiBodyIslandCallback); - -#ifndef BT_USE_VIRTUAL_CLEARFORCES_AND_GRAVITY - { - BT_PROFILE("btMultiBody addForce"); - for (int i=0;i<this->m_multiBodies.size();i++) - { - btMultiBody* bod = m_multiBodies[i]; - - bool isSleeping = false; - - if (bod->getBaseCollider() && bod->getBaseCollider()->getActivationState() == ISLAND_SLEEPING) - { - isSleeping = true; - } - for (int b=0;b<bod->getNumLinks();b++) - { - if (bod->getLink(b).m_collider && bod->getLink(b).m_collider->getActivationState()==ISLAND_SLEEPING) - isSleeping = true; - } - - if (!isSleeping) - { - //useless? they get resized in stepVelocities once again (AND DIFFERENTLY) - m_scratch_r.resize(bod->getNumLinks()+1); //multidof? ("Y"s use it and it is used to store qdd) - m_scratch_v.resize(bod->getNumLinks()+1); - m_scratch_m.resize(bod->getNumLinks()+1); - - bod->addBaseForce(m_gravity * bod->getBaseMass()); - - for (int j = 0; j < bod->getNumLinks(); ++j) - { - bod->addLinkForce(j, m_gravity * bod->getLinkMass(j)); - } - }//if (!isSleeping) - } - } -#endif //BT_USE_VIRTUAL_CLEARFORCES_AND_GRAVITY - - - { - BT_PROFILE("btMultiBody stepVelocities"); - for (int i=0;i<this->m_multiBodies.size();i++) - { - btMultiBody* bod = m_multiBodies[i]; - - bool isSleeping = false; - - if (bod->getBaseCollider() && bod->getBaseCollider()->getActivationState() == ISLAND_SLEEPING) - { - isSleeping = true; - } - for (int b=0;b<bod->getNumLinks();b++) - { - if (bod->getLink(b).m_collider && bod->getLink(b).m_collider->getActivationState()==ISLAND_SLEEPING) - isSleeping = true; - } - - if (!isSleeping) - { - //useless? they get resized in stepVelocities once again (AND DIFFERENTLY) - m_scratch_r.resize(bod->getNumLinks()+1); //multidof? ("Y"s use it and it is used to store qdd) - m_scratch_v.resize(bod->getNumLinks()+1); - m_scratch_m.resize(bod->getNumLinks()+1); - bool doNotUpdatePos = false; - - { - if(!bod->isUsingRK4Integration()) - { - bod->computeAccelerationsArticulatedBodyAlgorithmMultiDof(solverInfo.m_timeStep, m_scratch_r, m_scratch_v, m_scratch_m); - } - else - { - // - int numDofs = bod->getNumDofs() + 6; - int numPosVars = bod->getNumPosVars() + 7; - btAlignedObjectArray<btScalar> scratch_r2; scratch_r2.resize(2*numPosVars + 8*numDofs); - //convenience - btScalar *pMem = &scratch_r2[0]; - btScalar *scratch_q0 = pMem; pMem += numPosVars; - btScalar *scratch_qx = pMem; pMem += numPosVars; - btScalar *scratch_qd0 = pMem; pMem += numDofs; - btScalar *scratch_qd1 = pMem; pMem += numDofs; - btScalar *scratch_qd2 = pMem; pMem += numDofs; - btScalar *scratch_qd3 = pMem; pMem += numDofs; - btScalar *scratch_qdd0 = pMem; pMem += numDofs; - btScalar *scratch_qdd1 = pMem; pMem += numDofs; - btScalar *scratch_qdd2 = pMem; pMem += numDofs; - btScalar *scratch_qdd3 = pMem; pMem += numDofs; - btAssert((pMem - (2*numPosVars + 8*numDofs)) == &scratch_r2[0]); - - ///// - //copy q0 to scratch_q0 and qd0 to scratch_qd0 - scratch_q0[0] = bod->getWorldToBaseRot().x(); - scratch_q0[1] = bod->getWorldToBaseRot().y(); - scratch_q0[2] = bod->getWorldToBaseRot().z(); - scratch_q0[3] = bod->getWorldToBaseRot().w(); - scratch_q0[4] = bod->getBasePos().x(); - scratch_q0[5] = bod->getBasePos().y(); - scratch_q0[6] = bod->getBasePos().z(); - // - for(int link = 0; link < bod->getNumLinks(); ++link) - { - for(int dof = 0; dof < bod->getLink(link).m_posVarCount; ++dof) - scratch_q0[7 + bod->getLink(link).m_cfgOffset + dof] = bod->getLink(link).m_jointPos[dof]; - } - // - for(int dof = 0; dof < numDofs; ++dof) - scratch_qd0[dof] = bod->getVelocityVector()[dof]; - //// - struct - { - btMultiBody *bod; - btScalar *scratch_qx, *scratch_q0; - - void operator()() - { - for(int dof = 0; dof < bod->getNumPosVars() + 7; ++dof) - scratch_qx[dof] = scratch_q0[dof]; - } - } pResetQx = {bod, scratch_qx, scratch_q0}; - // - struct - { - void operator()(btScalar dt, const btScalar *pDer, const btScalar *pCurVal, btScalar *pVal, int size) - { - for(int i = 0; i < size; ++i) - pVal[i] = pCurVal[i] + dt * pDer[i]; - } - - } pEulerIntegrate; - // - struct - { - void operator()(btMultiBody *pBody, const btScalar *pData) - { - btScalar *pVel = const_cast<btScalar*>(pBody->getVelocityVector()); - - for(int i = 0; i < pBody->getNumDofs() + 6; ++i) - pVel[i] = pData[i]; - - } - } pCopyToVelocityVector; - // - struct - { - void operator()(const btScalar *pSrc, btScalar *pDst, int start, int size) - { - for(int i = 0; i < size; ++i) - pDst[i] = pSrc[start + i]; - } - } pCopy; - // - - btScalar h = solverInfo.m_timeStep; - #define output &m_scratch_r[bod->getNumDofs()] - //calc qdd0 from: q0 & qd0 - bod->computeAccelerationsArticulatedBodyAlgorithmMultiDof(0., m_scratch_r, m_scratch_v, m_scratch_m); - pCopy(output, scratch_qdd0, 0, numDofs); - //calc q1 = q0 + h/2 * qd0 - pResetQx(); - bod->stepPositionsMultiDof(btScalar(.5)*h, scratch_qx, scratch_qd0); - //calc qd1 = qd0 + h/2 * qdd0 - pEulerIntegrate(btScalar(.5)*h, scratch_qdd0, scratch_qd0, scratch_qd1, numDofs); - // - //calc qdd1 from: q1 & qd1 - pCopyToVelocityVector(bod, scratch_qd1); - bod->computeAccelerationsArticulatedBodyAlgorithmMultiDof(0., m_scratch_r, m_scratch_v, m_scratch_m); - pCopy(output, scratch_qdd1, 0, numDofs); - //calc q2 = q0 + h/2 * qd1 - pResetQx(); - bod->stepPositionsMultiDof(btScalar(.5)*h, scratch_qx, scratch_qd1); - //calc qd2 = qd0 + h/2 * qdd1 - pEulerIntegrate(btScalar(.5)*h, scratch_qdd1, scratch_qd0, scratch_qd2, numDofs); - // - //calc qdd2 from: q2 & qd2 - pCopyToVelocityVector(bod, scratch_qd2); - bod->computeAccelerationsArticulatedBodyAlgorithmMultiDof(0., m_scratch_r, m_scratch_v, m_scratch_m); - pCopy(output, scratch_qdd2, 0, numDofs); - //calc q3 = q0 + h * qd2 - pResetQx(); - bod->stepPositionsMultiDof(h, scratch_qx, scratch_qd2); - //calc qd3 = qd0 + h * qdd2 - pEulerIntegrate(h, scratch_qdd2, scratch_qd0, scratch_qd3, numDofs); - // - //calc qdd3 from: q3 & qd3 - pCopyToVelocityVector(bod, scratch_qd3); - bod->computeAccelerationsArticulatedBodyAlgorithmMultiDof(0., m_scratch_r, m_scratch_v, m_scratch_m); - pCopy(output, scratch_qdd3, 0, numDofs); - - // - //calc q = q0 + h/6(qd0 + 2*(qd1 + qd2) + qd3) - //calc qd = qd0 + h/6(qdd0 + 2*(qdd1 + qdd2) + qdd3) - btAlignedObjectArray<btScalar> delta_q; delta_q.resize(numDofs); - btAlignedObjectArray<btScalar> delta_qd; delta_qd.resize(numDofs); - for(int i = 0; i < numDofs; ++i) - { - delta_q[i] = h/btScalar(6.)*(scratch_qd0[i] + 2*scratch_qd1[i] + 2*scratch_qd2[i] + scratch_qd3[i]); - delta_qd[i] = h/btScalar(6.)*(scratch_qdd0[i] + 2*scratch_qdd1[i] + 2*scratch_qdd2[i] + scratch_qdd3[i]); - //delta_q[i] = h*scratch_qd0[i]; - //delta_qd[i] = h*scratch_qdd0[i]; - } - // - pCopyToVelocityVector(bod, scratch_qd0); - bod->applyDeltaVeeMultiDof(&delta_qd[0], 1); - // - if(!doNotUpdatePos) - { - btScalar *pRealBuf = const_cast<btScalar *>(bod->getVelocityVector()); - pRealBuf += 6 + bod->getNumDofs() + bod->getNumDofs()*bod->getNumDofs(); - - for(int i = 0; i < numDofs; ++i) - pRealBuf[i] = delta_q[i]; - - //bod->stepPositionsMultiDof(1, 0, &delta_q[0]); - bod->setPosUpdated(true); - } - - //ugly hack which resets the cached data to t0 (needed for constraint solver) - { - for(int link = 0; link < bod->getNumLinks(); ++link) - bod->getLink(link).updateCacheMultiDof(); - bod->computeAccelerationsArticulatedBodyAlgorithmMultiDof(0, m_scratch_r, m_scratch_v, m_scratch_m); - } - - } - } - -#ifndef BT_USE_VIRTUAL_CLEARFORCES_AND_GRAVITY - bod->clearForcesAndTorques(); -#endif //BT_USE_VIRTUAL_CLEARFORCES_AND_GRAVITY - }//if (!isSleeping) - } - } - - clearMultiBodyConstraintForces(); - - m_solverMultiBodyIslandCallback->processConstraints(); - - m_constraintSolver->allSolved(solverInfo, m_debugDrawer); - - { - BT_PROFILE("btMultiBody stepVelocities"); - for (int i=0;i<this->m_multiBodies.size();i++) - { - btMultiBody* bod = m_multiBodies[i]; - - bool isSleeping = false; - - if (bod->getBaseCollider() && bod->getBaseCollider()->getActivationState() == ISLAND_SLEEPING) - { - isSleeping = true; - } - for (int b=0;b<bod->getNumLinks();b++) - { - if (bod->getLink(b).m_collider && bod->getLink(b).m_collider->getActivationState()==ISLAND_SLEEPING) - isSleeping = true; - } - - if (!isSleeping) - { - //useless? they get resized in stepVelocities once again (AND DIFFERENTLY) - m_scratch_r.resize(bod->getNumLinks()+1); //multidof? ("Y"s use it and it is used to store qdd) - m_scratch_v.resize(bod->getNumLinks()+1); - m_scratch_m.resize(bod->getNumLinks()+1); - - - { - if(!bod->isUsingRK4Integration()) - { - bool isConstraintPass = true; - bod->computeAccelerationsArticulatedBodyAlgorithmMultiDof(solverInfo.m_timeStep, m_scratch_r, m_scratch_v, m_scratch_m, isConstraintPass); - } - } - } - } - } - - for (int i=0;i<this->m_multiBodies.size();i++) - { - btMultiBody* bod = m_multiBodies[i]; - bod->processDeltaVeeMultiDof2(); - } - -} - -void btMultiBodyDynamicsWorld::integrateTransforms(btScalar timeStep) -{ - btDiscreteDynamicsWorld::integrateTransforms(timeStep); - - { - BT_PROFILE("btMultiBody stepPositions"); - //integrate and update the Featherstone hierarchies - - for (int b=0;b<m_multiBodies.size();b++) - { - btMultiBody* bod = m_multiBodies[b]; - bool isSleeping = false; - if (bod->getBaseCollider() && bod->getBaseCollider()->getActivationState() == ISLAND_SLEEPING) - { - isSleeping = true; - } - for (int b=0;b<bod->getNumLinks();b++) - { - if (bod->getLink(b).m_collider && bod->getLink(b).m_collider->getActivationState()==ISLAND_SLEEPING) - isSleeping = true; - } - - - if (!isSleeping) - { - int nLinks = bod->getNumLinks(); - - ///base + num m_links - - - { - if(!bod->isPosUpdated()) - bod->stepPositionsMultiDof(timeStep); - else - { - btScalar *pRealBuf = const_cast<btScalar *>(bod->getVelocityVector()); - pRealBuf += 6 + bod->getNumDofs() + bod->getNumDofs()*bod->getNumDofs(); - - bod->stepPositionsMultiDof(1, 0, pRealBuf); - bod->setPosUpdated(false); - } - } - - m_scratch_world_to_local.resize(nLinks+1); - m_scratch_local_origin.resize(nLinks+1); - - bod->updateCollisionObjectWorldTransforms(m_scratch_world_to_local,m_scratch_local_origin); - - } else - { - bod->clearVelocities(); - } - } - } -} - - - -void btMultiBodyDynamicsWorld::addMultiBodyConstraint( btMultiBodyConstraint* constraint) -{ - m_multiBodyConstraints.push_back(constraint); -} - -void btMultiBodyDynamicsWorld::removeMultiBodyConstraint( btMultiBodyConstraint* constraint) -{ - m_multiBodyConstraints.remove(constraint); -} - -void btMultiBodyDynamicsWorld::debugDrawMultiBodyConstraint(btMultiBodyConstraint* constraint) -{ - constraint->debugDraw(getDebugDrawer()); -} - - -void btMultiBodyDynamicsWorld::debugDrawWorld() -{ - BT_PROFILE("btMultiBodyDynamicsWorld debugDrawWorld"); - - btDiscreteDynamicsWorld::debugDrawWorld(); - - bool drawConstraints = false; - if (getDebugDrawer()) - { - int mode = getDebugDrawer()->getDebugMode(); - if (mode & (btIDebugDraw::DBG_DrawConstraints | btIDebugDraw::DBG_DrawConstraintLimits)) - { - drawConstraints = true; - } - - if (drawConstraints) - { - BT_PROFILE("btMultiBody debugDrawWorld"); - - - for (int c=0;c<m_multiBodyConstraints.size();c++) - { - btMultiBodyConstraint* constraint = m_multiBodyConstraints[c]; - debugDrawMultiBodyConstraint(constraint); - } - - for (int b = 0; b<m_multiBodies.size(); b++) - { - btMultiBody* bod = m_multiBodies[b]; - bod->forwardKinematics(m_scratch_world_to_local1,m_scratch_local_origin1); - - getDebugDrawer()->drawTransform(bod->getBaseWorldTransform(), 0.1); - - - for (int m = 0; m<bod->getNumLinks(); m++) - { - - const btTransform& tr = bod->getLink(m).m_cachedWorldTransform; - - getDebugDrawer()->drawTransform(tr, 0.1); - - //draw the joint axis - if (bod->getLink(m).m_jointType==btMultibodyLink::eRevolute) - { - btVector3 vec = quatRotate(tr.getRotation(),bod->getLink(m).m_axes[0].m_topVec); - - btVector4 color(0,0,0,1);//1,1,1); - btVector3 from = vec+tr.getOrigin()-quatRotate(tr.getRotation(),bod->getLink(m).m_dVector); - btVector3 to = tr.getOrigin()-quatRotate(tr.getRotation(),bod->getLink(m).m_dVector); - getDebugDrawer()->drawLine(from,to,color); - } - if (bod->getLink(m).m_jointType==btMultibodyLink::eFixed) - { - btVector3 vec = quatRotate(tr.getRotation(),bod->getLink(m).m_axes[0].m_bottomVec); - - btVector4 color(0,0,0,1);//1,1,1); - btVector3 from = vec+tr.getOrigin()-quatRotate(tr.getRotation(),bod->getLink(m).m_dVector); - btVector3 to = tr.getOrigin()-quatRotate(tr.getRotation(),bod->getLink(m).m_dVector); - getDebugDrawer()->drawLine(from,to,color); - } - if (bod->getLink(m).m_jointType==btMultibodyLink::ePrismatic) - { - btVector3 vec = quatRotate(tr.getRotation(),bod->getLink(m).m_axes[0].m_bottomVec); - - btVector4 color(0,0,0,1);//1,1,1); - btVector3 from = vec+tr.getOrigin()-quatRotate(tr.getRotation(),bod->getLink(m).m_dVector); - btVector3 to = tr.getOrigin()-quatRotate(tr.getRotation(),bod->getLink(m).m_dVector); - getDebugDrawer()->drawLine(from,to,color); - } - - } - } - } - } - - -} - - - -void btMultiBodyDynamicsWorld::applyGravity() -{ - btDiscreteDynamicsWorld::applyGravity(); -#ifdef BT_USE_VIRTUAL_CLEARFORCES_AND_GRAVITY - BT_PROFILE("btMultiBody addGravity"); - for (int i=0;i<this->m_multiBodies.size();i++) - { - btMultiBody* bod = m_multiBodies[i]; - - bool isSleeping = false; - - if (bod->getBaseCollider() && bod->getBaseCollider()->getActivationState() == ISLAND_SLEEPING) - { - isSleeping = true; - } - for (int b=0;b<bod->getNumLinks();b++) - { - if (bod->getLink(b).m_collider && bod->getLink(b).m_collider->getActivationState()==ISLAND_SLEEPING) - isSleeping = true; - } - - if (!isSleeping) - { - bod->addBaseForce(m_gravity * bod->getBaseMass()); - - for (int j = 0; j < bod->getNumLinks(); ++j) - { - bod->addLinkForce(j, m_gravity * bod->getLinkMass(j)); - } - }//if (!isSleeping) - } -#endif //BT_USE_VIRTUAL_CLEARFORCES_AND_GRAVITY -} - -void btMultiBodyDynamicsWorld::clearMultiBodyConstraintForces() -{ - for (int i=0;i<this->m_multiBodies.size();i++) - { - btMultiBody* bod = m_multiBodies[i]; - bod->clearConstraintForces(); - } -} -void btMultiBodyDynamicsWorld::clearMultiBodyForces() -{ - { - // BT_PROFILE("clearMultiBodyForces"); - for (int i=0;i<this->m_multiBodies.size();i++) - { - btMultiBody* bod = m_multiBodies[i]; - - bool isSleeping = false; - - if (bod->getBaseCollider() && bod->getBaseCollider()->getActivationState() == ISLAND_SLEEPING) - { - isSleeping = true; - } - for (int b=0;b<bod->getNumLinks();b++) - { - if (bod->getLink(b).m_collider && bod->getLink(b).m_collider->getActivationState()==ISLAND_SLEEPING) - isSleeping = true; - } - - if (!isSleeping) - { - btMultiBody* bod = m_multiBodies[i]; - bod->clearForcesAndTorques(); - } - } - } - -} -void btMultiBodyDynamicsWorld::clearForces() -{ - btDiscreteDynamicsWorld::clearForces(); - -#ifdef BT_USE_VIRTUAL_CLEARFORCES_AND_GRAVITY - clearMultiBodyForces(); -#endif -} - - - - -void btMultiBodyDynamicsWorld::serialize(btSerializer* serializer) -{ - - serializer->startSerialization(); - - serializeDynamicsWorldInfo( serializer); - - serializeMultiBodies(serializer); - - serializeRigidBodies(serializer); - - serializeCollisionObjects(serializer); - - serializer->finishSerialization(); -} - -void btMultiBodyDynamicsWorld::serializeMultiBodies(btSerializer* serializer) -{ - int i; - //serialize all collision objects - for (i=0;i<m_multiBodies.size();i++) - { - btMultiBody* mb = m_multiBodies[i]; - { - int len = mb->calculateSerializeBufferSize(); - btChunk* chunk = serializer->allocate(len,1); - const char* structType = mb->serialize(chunk->m_oldPtr, serializer); - serializer->finalizeChunk(chunk,structType,BT_MULTIBODY_CODE,mb); - } - } - -}
\ No newline at end of file diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyDynamicsWorld.h b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyDynamicsWorld.h deleted file mode 100644 index c0c132bbba..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyDynamicsWorld.h +++ /dev/null @@ -1,114 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_MULTIBODY_DYNAMICS_WORLD_H -#define BT_MULTIBODY_DYNAMICS_WORLD_H - -#include "BulletDynamics/Dynamics/btDiscreteDynamicsWorld.h" - -#define BT_USE_VIRTUAL_CLEARFORCES_AND_GRAVITY - -class btMultiBody; -class btMultiBodyConstraint; -class btMultiBodyConstraintSolver; -struct MultiBodyInplaceSolverIslandCallback; - -///The btMultiBodyDynamicsWorld adds Featherstone multi body dynamics to Bullet -///This implementation is still preliminary/experimental. -class btMultiBodyDynamicsWorld : public btDiscreteDynamicsWorld -{ -protected: - btAlignedObjectArray<btMultiBody*> m_multiBodies; - btAlignedObjectArray<btMultiBodyConstraint*> m_multiBodyConstraints; - btAlignedObjectArray<btMultiBodyConstraint*> m_sortedMultiBodyConstraints; - btMultiBodyConstraintSolver* m_multiBodyConstraintSolver; - MultiBodyInplaceSolverIslandCallback* m_solverMultiBodyIslandCallback; - - //cached data to avoid memory allocations - btAlignedObjectArray<btQuaternion> m_scratch_world_to_local; - btAlignedObjectArray<btVector3> m_scratch_local_origin; - btAlignedObjectArray<btQuaternion> m_scratch_world_to_local1; - btAlignedObjectArray<btVector3> m_scratch_local_origin1; - btAlignedObjectArray<btScalar> m_scratch_r; - btAlignedObjectArray<btVector3> m_scratch_v; - btAlignedObjectArray<btMatrix3x3> m_scratch_m; - - - virtual void calculateSimulationIslands(); - virtual void updateActivationState(btScalar timeStep); - virtual void solveConstraints(btContactSolverInfo& solverInfo); - - virtual void serializeMultiBodies(btSerializer* serializer); - -public: - - btMultiBodyDynamicsWorld(btDispatcher* dispatcher,btBroadphaseInterface* pairCache,btMultiBodyConstraintSolver* constraintSolver,btCollisionConfiguration* collisionConfiguration); - - virtual ~btMultiBodyDynamicsWorld (); - - virtual void addMultiBody(btMultiBody* body, int group= btBroadphaseProxy::DefaultFilter, int mask=btBroadphaseProxy::AllFilter); - - virtual void removeMultiBody(btMultiBody* body); - - virtual int getNumMultibodies() const - { - return m_multiBodies.size(); - } - - btMultiBody* getMultiBody(int mbIndex) - { - return m_multiBodies[mbIndex]; - } - - const btMultiBody* getMultiBody(int mbIndex) const - { - return m_multiBodies[mbIndex]; - } - - virtual void addMultiBodyConstraint( btMultiBodyConstraint* constraint); - - virtual int getNumMultiBodyConstraints() const - { - return m_multiBodyConstraints.size(); - } - - virtual btMultiBodyConstraint* getMultiBodyConstraint( int constraintIndex) - { - return m_multiBodyConstraints[constraintIndex]; - } - - virtual const btMultiBodyConstraint* getMultiBodyConstraint( int constraintIndex) const - { - return m_multiBodyConstraints[constraintIndex]; - } - - virtual void removeMultiBodyConstraint( btMultiBodyConstraint* constraint); - - virtual void integrateTransforms(btScalar timeStep); - - virtual void debugDrawWorld(); - - virtual void debugDrawMultiBodyConstraint(btMultiBodyConstraint* constraint); - - void forwardKinematics(); - virtual void clearForces(); - virtual void clearMultiBodyConstraintForces(); - virtual void clearMultiBodyForces(); - virtual void applyGravity(); - - virtual void serialize(btSerializer* serializer); - -}; -#endif //BT_MULTIBODY_DYNAMICS_WORLD_H diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyFixedConstraint.cpp b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyFixedConstraint.cpp deleted file mode 100644 index 1f94117aa9..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyFixedConstraint.cpp +++ /dev/null @@ -1,211 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -///This file was written by Erwin Coumans - -#include "btMultiBodyFixedConstraint.h" -#include "btMultiBodyLinkCollider.h" -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include "BulletDynamics/ConstraintSolver/btGeneric6DofSpring2Constraint.h" -#include "LinearMath/btIDebugDraw.h" - -#define BTMBFIXEDCONSTRAINT_DIM 6 - -btMultiBodyFixedConstraint::btMultiBodyFixedConstraint(btMultiBody* body, int link, btRigidBody* bodyB, const btVector3& pivotInA, const btVector3& pivotInB, const btMatrix3x3& frameInA, const btMatrix3x3& frameInB) - :btMultiBodyConstraint(body,0,link,-1,BTMBFIXEDCONSTRAINT_DIM,false), - m_rigidBodyA(0), - m_rigidBodyB(bodyB), - m_pivotInA(pivotInA), - m_pivotInB(pivotInB), - m_frameInA(frameInA), - m_frameInB(frameInB) -{ - m_data.resize(BTMBFIXEDCONSTRAINT_DIM);//at least store the applied impulses -} - -btMultiBodyFixedConstraint::btMultiBodyFixedConstraint(btMultiBody* bodyA, int linkA, btMultiBody* bodyB, int linkB, const btVector3& pivotInA, const btVector3& pivotInB, const btMatrix3x3& frameInA, const btMatrix3x3& frameInB) - :btMultiBodyConstraint(bodyA,bodyB,linkA,linkB,BTMBFIXEDCONSTRAINT_DIM,false), - m_rigidBodyA(0), - m_rigidBodyB(0), - m_pivotInA(pivotInA), - m_pivotInB(pivotInB), - m_frameInA(frameInA), - m_frameInB(frameInB) -{ - m_data.resize(BTMBFIXEDCONSTRAINT_DIM);//at least store the applied impulses -} - -void btMultiBodyFixedConstraint::finalizeMultiDof() -{ - //not implemented yet - btAssert(0); -} - -btMultiBodyFixedConstraint::~btMultiBodyFixedConstraint() -{ -} - - -int btMultiBodyFixedConstraint::getIslandIdA() const -{ - if (m_rigidBodyA) - return m_rigidBodyA->getIslandTag(); - - if (m_bodyA) - { - btMultiBodyLinkCollider* col = m_bodyA->getBaseCollider(); - if (col) - return col->getIslandTag(); - for (int i=0;i<m_bodyA->getNumLinks();i++) - { - if (m_bodyA->getLink(i).m_collider) - return m_bodyA->getLink(i).m_collider->getIslandTag(); - } - } - return -1; -} - -int btMultiBodyFixedConstraint::getIslandIdB() const -{ - if (m_rigidBodyB) - return m_rigidBodyB->getIslandTag(); - if (m_bodyB) - { - btMultiBodyLinkCollider* col = m_bodyB->getBaseCollider(); - if (col) - return col->getIslandTag(); - - for (int i=0;i<m_bodyB->getNumLinks();i++) - { - col = m_bodyB->getLink(i).m_collider; - if (col) - return col->getIslandTag(); - } - } - return -1; -} - -void btMultiBodyFixedConstraint::createConstraintRows(btMultiBodyConstraintArray& constraintRows, btMultiBodyJacobianData& data, const btContactSolverInfo& infoGlobal) -{ - int numDim = BTMBFIXEDCONSTRAINT_DIM; - for (int i=0;i<numDim;i++) - { - btMultiBodySolverConstraint& constraintRow = constraintRows.expandNonInitializing(); - constraintRow.m_orgConstraint = this; - constraintRow.m_orgDofIndex = i; - constraintRow.m_relpos1CrossNormal.setValue(0,0,0); - constraintRow.m_contactNormal1.setValue(0,0,0); - constraintRow.m_relpos2CrossNormal.setValue(0,0,0); - constraintRow.m_contactNormal2.setValue(0,0,0); - constraintRow.m_angularComponentA.setValue(0,0,0); - constraintRow.m_angularComponentB.setValue(0,0,0); - - constraintRow.m_solverBodyIdA = data.m_fixedBodyId; - constraintRow.m_solverBodyIdB = data.m_fixedBodyId; - - // Convert local points back to world - btVector3 pivotAworld = m_pivotInA; - btMatrix3x3 frameAworld = m_frameInA; - if (m_rigidBodyA) - { - - constraintRow.m_solverBodyIdA = m_rigidBodyA->getCompanionId(); - pivotAworld = m_rigidBodyA->getCenterOfMassTransform()*m_pivotInA; - frameAworld = frameAworld.transpose()*btMatrix3x3(m_rigidBodyA->getOrientation()); - - } else - { - if (m_bodyA) { - pivotAworld = m_bodyA->localPosToWorld(m_linkA, m_pivotInA); - frameAworld = m_bodyA->localFrameToWorld(m_linkA, frameAworld); - } - } - btVector3 pivotBworld = m_pivotInB; - btMatrix3x3 frameBworld = m_frameInB; - if (m_rigidBodyB) - { - constraintRow.m_solverBodyIdB = m_rigidBodyB->getCompanionId(); - pivotBworld = m_rigidBodyB->getCenterOfMassTransform()*m_pivotInB; - frameBworld = frameBworld.transpose()*btMatrix3x3(m_rigidBodyB->getOrientation()); - - } else - { - if (m_bodyB) { - pivotBworld = m_bodyB->localPosToWorld(m_linkB, m_pivotInB); - frameBworld = m_bodyB->localFrameToWorld(m_linkB, frameBworld); - } - } - - btMatrix3x3 relRot = frameAworld.inverse()*frameBworld; - btVector3 angleDiff; - btGeneric6DofSpring2Constraint::matrixToEulerXYZ(relRot,angleDiff); - - btVector3 constraintNormalLin(0,0,0); - btVector3 constraintNormalAng(0,0,0); - btScalar posError = 0.0; - if (i < 3) { - constraintNormalLin[i] = 1; - posError = (pivotAworld-pivotBworld).dot(constraintNormalLin); - fillMultiBodyConstraint(constraintRow, data, 0, 0, constraintNormalAng, - constraintNormalLin, pivotAworld, pivotBworld, - posError, - infoGlobal, - -m_maxAppliedImpulse, m_maxAppliedImpulse - ); - } - else { //i>=3 - constraintNormalAng = frameAworld.getColumn(i%3); - posError = angleDiff[i%3]; - fillMultiBodyConstraint(constraintRow, data, 0, 0, constraintNormalAng, - constraintNormalLin, pivotAworld, pivotBworld, - posError, - infoGlobal, - -m_maxAppliedImpulse, m_maxAppliedImpulse, true - ); - } - } -} - -void btMultiBodyFixedConstraint::debugDraw(class btIDebugDraw* drawer) -{ - btTransform tr; - tr.setIdentity(); - - if (m_rigidBodyA) - { - btVector3 pivot = m_rigidBodyA->getCenterOfMassTransform() * m_pivotInA; - tr.setOrigin(pivot); - drawer->drawTransform(tr, 0.1); - } - if (m_bodyA) - { - btVector3 pivotAworld = m_bodyA->localPosToWorld(m_linkA, m_pivotInA); - tr.setOrigin(pivotAworld); - drawer->drawTransform(tr, 0.1); - } - if (m_rigidBodyB) - { - // that ideally should draw the same frame - btVector3 pivot = m_rigidBodyB->getCenterOfMassTransform() * m_pivotInB; - tr.setOrigin(pivot); - drawer->drawTransform(tr, 0.1); - } - if (m_bodyB) - { - btVector3 pivotBworld = m_bodyB->localPosToWorld(m_linkB, m_pivotInB); - tr.setOrigin(pivotBworld); - drawer->drawTransform(tr, 0.1); - } -} diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyFixedConstraint.h b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyFixedConstraint.h deleted file mode 100644 index 036025136e..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyFixedConstraint.h +++ /dev/null @@ -1,94 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -///This file was written by Erwin Coumans - -#ifndef BT_MULTIBODY_FIXED_CONSTRAINT_H -#define BT_MULTIBODY_FIXED_CONSTRAINT_H - -#include "btMultiBodyConstraint.h" - -class btMultiBodyFixedConstraint : public btMultiBodyConstraint -{ -protected: - - btRigidBody* m_rigidBodyA; - btRigidBody* m_rigidBodyB; - btVector3 m_pivotInA; - btVector3 m_pivotInB; - btMatrix3x3 m_frameInA; - btMatrix3x3 m_frameInB; - -public: - - btMultiBodyFixedConstraint(btMultiBody* body, int link, btRigidBody* bodyB, const btVector3& pivotInA, const btVector3& pivotInB, const btMatrix3x3& frameInA, const btMatrix3x3& frameInB); - btMultiBodyFixedConstraint(btMultiBody* bodyA, int linkA, btMultiBody* bodyB, int linkB, const btVector3& pivotInA, const btVector3& pivotInB, const btMatrix3x3& frameInA, const btMatrix3x3& frameInB); - - virtual ~btMultiBodyFixedConstraint(); - - virtual void finalizeMultiDof(); - - virtual int getIslandIdA() const; - virtual int getIslandIdB() const; - - virtual void createConstraintRows(btMultiBodyConstraintArray& constraintRows, - btMultiBodyJacobianData& data, - const btContactSolverInfo& infoGlobal); - - const btVector3& getPivotInA() const - { - return m_pivotInA; - } - - void setPivotInA(const btVector3& pivotInA) - { - m_pivotInA = pivotInA; - } - - const btVector3& getPivotInB() const - { - return m_pivotInB; - } - - virtual void setPivotInB(const btVector3& pivotInB) - { - m_pivotInB = pivotInB; - } - - const btMatrix3x3& getFrameInA() const - { - return m_frameInA; - } - - void setFrameInA(const btMatrix3x3& frameInA) - { - m_frameInA = frameInA; - } - - const btMatrix3x3& getFrameInB() const - { - return m_frameInB; - } - - virtual void setFrameInB(const btMatrix3x3& frameInB) - { - m_frameInB = frameInB; - } - - virtual void debugDraw(class btIDebugDraw* drawer); - -}; - -#endif //BT_MULTIBODY_FIXED_CONSTRAINT_H diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyGearConstraint.cpp b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyGearConstraint.cpp deleted file mode 100644 index 5fdb7007d8..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyGearConstraint.cpp +++ /dev/null @@ -1,184 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -///This file was written by Erwin Coumans - -#include "btMultiBodyGearConstraint.h" -#include "btMultiBody.h" -#include "btMultiBodyLinkCollider.h" -#include "BulletCollision/CollisionDispatch/btCollisionObject.h" - -btMultiBodyGearConstraint::btMultiBodyGearConstraint(btMultiBody* bodyA, int linkA, btMultiBody* bodyB, int linkB, const btVector3& pivotInA, const btVector3& pivotInB, const btMatrix3x3& frameInA, const btMatrix3x3& frameInB) - :btMultiBodyConstraint(bodyA,bodyB,linkA,linkB,1,false), - m_gearRatio(1), - m_gearAuxLink(-1), - m_erp(0), - m_relativePositionTarget(0) -{ - -} - -void btMultiBodyGearConstraint::finalizeMultiDof() -{ - - allocateJacobiansMultiDof(); - - m_numDofsFinalized = m_jacSizeBoth; -} - -btMultiBodyGearConstraint::~btMultiBodyGearConstraint() -{ -} - - -int btMultiBodyGearConstraint::getIslandIdA() const -{ - - if (m_bodyA) - { - btMultiBodyLinkCollider* col = m_bodyA->getBaseCollider(); - if (col) - return col->getIslandTag(); - for (int i=0;i<m_bodyA->getNumLinks();i++) - { - if (m_bodyA->getLink(i).m_collider) - return m_bodyA->getLink(i).m_collider->getIslandTag(); - } - } - return -1; -} - -int btMultiBodyGearConstraint::getIslandIdB() const -{ - if (m_bodyB) - { - btMultiBodyLinkCollider* col = m_bodyB->getBaseCollider(); - if (col) - return col->getIslandTag(); - - for (int i=0;i<m_bodyB->getNumLinks();i++) - { - col = m_bodyB->getLink(i).m_collider; - if (col) - return col->getIslandTag(); - } - } - return -1; -} - - -void btMultiBodyGearConstraint::createConstraintRows(btMultiBodyConstraintArray& constraintRows, - btMultiBodyJacobianData& data, - const btContactSolverInfo& infoGlobal) -{ - // only positions need to be updated -- data.m_jacobians and force - // directions were set in the ctor and never change. - - if (m_numDofsFinalized != m_jacSizeBoth) - { - finalizeMultiDof(); - } - - //don't crash - if (m_numDofsFinalized != m_jacSizeBoth) - return; - - - if (m_maxAppliedImpulse==0.f) - return; - - // note: we rely on the fact that data.m_jacobians are - // always initialized to zero by the Constraint ctor - int linkDoF = 0; - unsigned int offsetA = 6 + (m_bodyA->getLink(m_linkA).m_dofOffset + linkDoF); - unsigned int offsetB = 6 + (m_bodyB->getLink(m_linkB).m_dofOffset + linkDoF); - - // row 0: the lower bound - jacobianA(0)[offsetA] = 1; - jacobianB(0)[offsetB] = m_gearRatio; - - btScalar posError = 0; - const btVector3 dummy(0, 0, 0); - - btScalar kp = 1; - btScalar kd = 1; - int numRows = getNumRows(); - - for (int row=0;row<numRows;row++) - { - btMultiBodySolverConstraint& constraintRow = constraintRows.expandNonInitializing(); - - - int dof = 0; - btScalar currentPosition = m_bodyA->getJointPosMultiDof(m_linkA)[dof]; - btScalar currentVelocity = m_bodyA->getJointVelMultiDof(m_linkA)[dof]; - btScalar auxVel = 0; - - if (m_gearAuxLink>=0) - { - auxVel = m_bodyA->getJointVelMultiDof(m_gearAuxLink)[dof]; - } - currentVelocity += auxVel; - if (m_erp!=0) - { - btScalar currentPositionA = m_bodyA->getJointPosMultiDof(m_linkA)[dof]; - btScalar currentPositionB = m_gearRatio*m_bodyA->getJointPosMultiDof(m_linkB)[dof]; - btScalar diff = currentPositionB+currentPositionA; - btScalar desiredPositionDiff = this->m_relativePositionTarget; - posError = -m_erp*(desiredPositionDiff - diff); - } - - btScalar desiredRelativeVelocity = auxVel; - - fillMultiBodyConstraint(constraintRow,data,jacobianA(row),jacobianB(row),dummy,dummy,dummy,dummy,posError,infoGlobal,-m_maxAppliedImpulse,m_maxAppliedImpulse,false,1,false,desiredRelativeVelocity); - - constraintRow.m_orgConstraint = this; - constraintRow.m_orgDofIndex = row; - { - //expect either prismatic or revolute joint type for now - btAssert((m_bodyA->getLink(m_linkA).m_jointType == btMultibodyLink::eRevolute)||(m_bodyA->getLink(m_linkA).m_jointType == btMultibodyLink::ePrismatic)); - switch (m_bodyA->getLink(m_linkA).m_jointType) - { - case btMultibodyLink::eRevolute: - { - constraintRow.m_contactNormal1.setZero(); - constraintRow.m_contactNormal2.setZero(); - btVector3 revoluteAxisInWorld = quatRotate(m_bodyA->getLink(m_linkA).m_cachedWorldTransform.getRotation(),m_bodyA->getLink(m_linkA).m_axes[0].m_topVec); - constraintRow.m_relpos1CrossNormal=revoluteAxisInWorld; - constraintRow.m_relpos2CrossNormal=-revoluteAxisInWorld; - - break; - } - case btMultibodyLink::ePrismatic: - { - btVector3 prismaticAxisInWorld = quatRotate(m_bodyA->getLink(m_linkA).m_cachedWorldTransform.getRotation(),m_bodyA->getLink(m_linkA).m_axes[0].m_bottomVec); - constraintRow.m_contactNormal1=prismaticAxisInWorld; - constraintRow.m_contactNormal2=-prismaticAxisInWorld; - constraintRow.m_relpos1CrossNormal.setZero(); - constraintRow.m_relpos2CrossNormal.setZero(); - break; - } - default: - { - btAssert(0); - } - }; - - } - - } - -} - diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyGearConstraint.h b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyGearConstraint.h deleted file mode 100644 index 0115de6241..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyGearConstraint.h +++ /dev/null @@ -1,117 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -///This file was written by Erwin Coumans - -#ifndef BT_MULTIBODY_GEAR_CONSTRAINT_H -#define BT_MULTIBODY_GEAR_CONSTRAINT_H - -#include "btMultiBodyConstraint.h" - -class btMultiBodyGearConstraint : public btMultiBodyConstraint -{ -protected: - - btRigidBody* m_rigidBodyA; - btRigidBody* m_rigidBodyB; - btVector3 m_pivotInA; - btVector3 m_pivotInB; - btMatrix3x3 m_frameInA; - btMatrix3x3 m_frameInB; - btScalar m_gearRatio; - int m_gearAuxLink; - btScalar m_erp; - btScalar m_relativePositionTarget; - -public: - - //btMultiBodyGearConstraint(btMultiBody* body, int link, btRigidBody* bodyB, const btVector3& pivotInA, const btVector3& pivotInB, const btMatrix3x3& frameInA, const btMatrix3x3& frameInB); - btMultiBodyGearConstraint(btMultiBody* bodyA, int linkA, btMultiBody* bodyB, int linkB, const btVector3& pivotInA, const btVector3& pivotInB, const btMatrix3x3& frameInA, const btMatrix3x3& frameInB); - - virtual ~btMultiBodyGearConstraint(); - - virtual void finalizeMultiDof(); - - virtual int getIslandIdA() const; - virtual int getIslandIdB() const; - - virtual void createConstraintRows(btMultiBodyConstraintArray& constraintRows, - btMultiBodyJacobianData& data, - const btContactSolverInfo& infoGlobal); - - const btVector3& getPivotInA() const - { - return m_pivotInA; - } - - void setPivotInA(const btVector3& pivotInA) - { - m_pivotInA = pivotInA; - } - - const btVector3& getPivotInB() const - { - return m_pivotInB; - } - - virtual void setPivotInB(const btVector3& pivotInB) - { - m_pivotInB = pivotInB; - } - - const btMatrix3x3& getFrameInA() const - { - return m_frameInA; - } - - void setFrameInA(const btMatrix3x3& frameInA) - { - m_frameInA = frameInA; - } - - const btMatrix3x3& getFrameInB() const - { - return m_frameInB; - } - - virtual void setFrameInB(const btMatrix3x3& frameInB) - { - m_frameInB = frameInB; - } - - virtual void debugDraw(class btIDebugDraw* drawer) - { - //todo(erwincoumans) - } - - virtual void setGearRatio(btScalar gearRatio) - { - m_gearRatio = gearRatio; - } - virtual void setGearAuxLink(int gearAuxLink) - { - m_gearAuxLink = gearAuxLink; - } - virtual void setRelativePositionTarget(btScalar relPosTarget) - { - m_relativePositionTarget = relPosTarget; - } - virtual void setErp(btScalar erp) - { - m_erp = erp; - } -}; - -#endif //BT_MULTIBODY_GEAR_CONSTRAINT_H diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyJointFeedback.h b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyJointFeedback.h deleted file mode 100644 index 5c2fa8ed5b..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyJointFeedback.h +++ /dev/null @@ -1,27 +0,0 @@ -/* -Copyright (c) 2015 Google Inc. - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - - - -#ifndef BT_MULTIBODY_JOINT_FEEDBACK_H -#define BT_MULTIBODY_JOINT_FEEDBACK_H - -#include "LinearMath/btSpatialAlgebra.h" - -struct btMultiBodyJointFeedback -{ - btSpatialForceVector m_reactionForces; -}; - -#endif //BT_MULTIBODY_JOINT_FEEDBACK_H diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyJointLimitConstraint.cpp b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyJointLimitConstraint.cpp deleted file mode 100644 index 6d173b66a1..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyJointLimitConstraint.cpp +++ /dev/null @@ -1,205 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -///This file was written by Erwin Coumans - -#include "btMultiBodyJointLimitConstraint.h" -#include "btMultiBody.h" -#include "btMultiBodyLinkCollider.h" -#include "BulletCollision/CollisionDispatch/btCollisionObject.h" - - - -btMultiBodyJointLimitConstraint::btMultiBodyJointLimitConstraint(btMultiBody* body, int link, btScalar lower, btScalar upper) - //:btMultiBodyConstraint(body,0,link,-1,2,true), - :btMultiBodyConstraint(body,body,link,body->getLink(link).m_parent,2,true), - m_lowerBound(lower), - m_upperBound(upper) -{ - -} - -void btMultiBodyJointLimitConstraint::finalizeMultiDof() -{ - // the data.m_jacobians never change, so may as well - // initialize them here - - allocateJacobiansMultiDof(); - - unsigned int offset = 6 + m_bodyA->getLink(m_linkA).m_dofOffset; - - // row 0: the lower bound - jacobianA(0)[offset] = 1; - // row 1: the upper bound - //jacobianA(1)[offset] = -1; - jacobianB(1)[offset] = -1; - - m_numDofsFinalized = m_jacSizeBoth; -} - -btMultiBodyJointLimitConstraint::~btMultiBodyJointLimitConstraint() -{ -} - -int btMultiBodyJointLimitConstraint::getIslandIdA() const -{ - if(m_bodyA) - { - btMultiBodyLinkCollider* col = m_bodyA->getBaseCollider(); - if (col) - return col->getIslandTag(); - for (int i=0;i<m_bodyA->getNumLinks();i++) - { - if (m_bodyA->getLink(i).m_collider) - return m_bodyA->getLink(i).m_collider->getIslandTag(); - } - } - return -1; -} - -int btMultiBodyJointLimitConstraint::getIslandIdB() const -{ - if(m_bodyB) - { - btMultiBodyLinkCollider* col = m_bodyB->getBaseCollider(); - if (col) - return col->getIslandTag(); - - for (int i=0;i<m_bodyB->getNumLinks();i++) - { - col = m_bodyB->getLink(i).m_collider; - if (col) - return col->getIslandTag(); - } - } - return -1; -} - - -void btMultiBodyJointLimitConstraint::createConstraintRows(btMultiBodyConstraintArray& constraintRows, - btMultiBodyJacobianData& data, - const btContactSolverInfo& infoGlobal) -{ - - // only positions need to be updated -- data.m_jacobians and force - // directions were set in the ctor and never change. - - if (m_numDofsFinalized != m_jacSizeBoth) - { - finalizeMultiDof(); - } - - - // row 0: the lower bound - setPosition(0, m_bodyA->getJointPos(m_linkA) - m_lowerBound); //multidof: this is joint-type dependent - - // row 1: the upper bound - setPosition(1, m_upperBound - m_bodyA->getJointPos(m_linkA)); - - for (int row=0;row<getNumRows();row++) - { - btScalar penetration = getPosition(row); - - //todo: consider adding some safety threshold here - if (penetration>0) - { - continue; - } - btScalar direction = row? -1 : 1; - - btMultiBodySolverConstraint& constraintRow = constraintRows.expandNonInitializing(); - constraintRow.m_orgConstraint = this; - constraintRow.m_orgDofIndex = row; - - constraintRow.m_multiBodyA = m_bodyA; - constraintRow.m_multiBodyB = m_bodyB; - const btScalar posError = 0; //why assume it's zero? - const btVector3 dummy(0, 0, 0); - - btScalar rel_vel = fillMultiBodyConstraint(constraintRow,data,jacobianA(row),jacobianB(row),dummy,dummy,dummy,dummy,posError,infoGlobal,0,m_maxAppliedImpulse); - - { - //expect either prismatic or revolute joint type for now - btAssert((m_bodyA->getLink(m_linkA).m_jointType == btMultibodyLink::eRevolute)||(m_bodyA->getLink(m_linkA).m_jointType == btMultibodyLink::ePrismatic)); - switch (m_bodyA->getLink(m_linkA).m_jointType) - { - case btMultibodyLink::eRevolute: - { - constraintRow.m_contactNormal1.setZero(); - constraintRow.m_contactNormal2.setZero(); - btVector3 revoluteAxisInWorld = direction*quatRotate(m_bodyA->getLink(m_linkA).m_cachedWorldTransform.getRotation(),m_bodyA->getLink(m_linkA).m_axes[0].m_topVec); - constraintRow.m_relpos1CrossNormal=revoluteAxisInWorld; - constraintRow.m_relpos2CrossNormal=-revoluteAxisInWorld; - - break; - } - case btMultibodyLink::ePrismatic: - { - btVector3 prismaticAxisInWorld = direction* quatRotate(m_bodyA->getLink(m_linkA).m_cachedWorldTransform.getRotation(),m_bodyA->getLink(m_linkA).m_axes[0].m_bottomVec); - constraintRow.m_contactNormal1=prismaticAxisInWorld; - constraintRow.m_contactNormal2=-prismaticAxisInWorld; - constraintRow.m_relpos1CrossNormal.setZero(); - constraintRow.m_relpos2CrossNormal.setZero(); - - break; - } - default: - { - btAssert(0); - } - }; - - } - - { - - btScalar positionalError = 0.f; - btScalar velocityError = - rel_vel;// * damping; - btScalar erp = infoGlobal.m_erp2; - if (!infoGlobal.m_splitImpulse || (penetration > infoGlobal.m_splitImpulsePenetrationThreshold)) - { - erp = infoGlobal.m_erp; - } - if (penetration>0) - { - positionalError = 0; - velocityError = -penetration / infoGlobal.m_timeStep; - } else - { - positionalError = -penetration * erp/infoGlobal.m_timeStep; - } - - btScalar penetrationImpulse = positionalError*constraintRow.m_jacDiagABInv; - btScalar velocityImpulse = velocityError *constraintRow.m_jacDiagABInv; - if (!infoGlobal.m_splitImpulse || (penetration > infoGlobal.m_splitImpulsePenetrationThreshold)) - { - //combine position and velocity into rhs - constraintRow.m_rhs = penetrationImpulse+velocityImpulse; - constraintRow.m_rhsPenetration = 0.f; - - } else - { - //split position and velocity into rhs and m_rhsPenetration - constraintRow.m_rhs = velocityImpulse; - constraintRow.m_rhsPenetration = penetrationImpulse; - } - } - } - -} - - - - diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyJointLimitConstraint.h b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyJointLimitConstraint.h deleted file mode 100644 index 55b8d122b9..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyJointLimitConstraint.h +++ /dev/null @@ -1,50 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_MULTIBODY_JOINT_LIMIT_CONSTRAINT_H -#define BT_MULTIBODY_JOINT_LIMIT_CONSTRAINT_H - -#include "btMultiBodyConstraint.h" -struct btSolverInfo; - -class btMultiBodyJointLimitConstraint : public btMultiBodyConstraint -{ -protected: - - btScalar m_lowerBound; - btScalar m_upperBound; -public: - - btMultiBodyJointLimitConstraint(btMultiBody* body, int link, btScalar lower, btScalar upper); - virtual ~btMultiBodyJointLimitConstraint(); - - virtual void finalizeMultiDof(); - - virtual int getIslandIdA() const; - virtual int getIslandIdB() const; - - virtual void createConstraintRows(btMultiBodyConstraintArray& constraintRows, - btMultiBodyJacobianData& data, - const btContactSolverInfo& infoGlobal); - - virtual void debugDraw(class btIDebugDraw* drawer) - { - //todo(erwincoumans) - } - -}; - -#endif //BT_MULTIBODY_JOINT_LIMIT_CONSTRAINT_H - diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyJointMotor.cpp b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyJointMotor.cpp deleted file mode 100644 index e0921178e9..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyJointMotor.cpp +++ /dev/null @@ -1,186 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -///This file was written by Erwin Coumans - -#include "btMultiBodyJointMotor.h" -#include "btMultiBody.h" -#include "btMultiBodyLinkCollider.h" -#include "BulletCollision/CollisionDispatch/btCollisionObject.h" - - -btMultiBodyJointMotor::btMultiBodyJointMotor(btMultiBody* body, int link, btScalar desiredVelocity, btScalar maxMotorImpulse) - :btMultiBodyConstraint(body,body,link,body->getLink(link).m_parent,1,true), - m_desiredVelocity(desiredVelocity), - m_desiredPosition(0), - m_kd(1.), - m_kp(0), - m_erp(1), - m_rhsClamp(SIMD_INFINITY) -{ - - m_maxAppliedImpulse = maxMotorImpulse; - // the data.m_jacobians never change, so may as well - // initialize them here - - -} - -void btMultiBodyJointMotor::finalizeMultiDof() -{ - allocateJacobiansMultiDof(); - // note: we rely on the fact that data.m_jacobians are - // always initialized to zero by the Constraint ctor - int linkDoF = 0; - unsigned int offset = 6 + (m_bodyA->getLink(m_linkA).m_dofOffset + linkDoF); - - // row 0: the lower bound - // row 0: the lower bound - jacobianA(0)[offset] = 1; - - m_numDofsFinalized = m_jacSizeBoth; -} - -btMultiBodyJointMotor::btMultiBodyJointMotor(btMultiBody* body, int link, int linkDoF, btScalar desiredVelocity, btScalar maxMotorImpulse) - //:btMultiBodyConstraint(body,0,link,-1,1,true), - :btMultiBodyConstraint(body,body,link,body->getLink(link).m_parent,1,true), - m_desiredVelocity(desiredVelocity), - m_desiredPosition(0), - m_kd(1.), - m_kp(0), - m_erp(1), - m_rhsClamp(SIMD_INFINITY) -{ - btAssert(linkDoF < body->getLink(link).m_dofCount); - - m_maxAppliedImpulse = maxMotorImpulse; - -} -btMultiBodyJointMotor::~btMultiBodyJointMotor() -{ -} - -int btMultiBodyJointMotor::getIslandIdA() const -{ - btMultiBodyLinkCollider* col = m_bodyA->getBaseCollider(); - if (col) - return col->getIslandTag(); - for (int i=0;i<m_bodyA->getNumLinks();i++) - { - if (m_bodyA->getLink(i).m_collider) - return m_bodyA->getLink(i).m_collider->getIslandTag(); - } - return -1; -} - -int btMultiBodyJointMotor::getIslandIdB() const -{ - btMultiBodyLinkCollider* col = m_bodyB->getBaseCollider(); - if (col) - return col->getIslandTag(); - - for (int i=0;i<m_bodyB->getNumLinks();i++) - { - col = m_bodyB->getLink(i).m_collider; - if (col) - return col->getIslandTag(); - } - return -1; -} - - -void btMultiBodyJointMotor::createConstraintRows(btMultiBodyConstraintArray& constraintRows, - btMultiBodyJacobianData& data, - const btContactSolverInfo& infoGlobal) -{ - // only positions need to be updated -- data.m_jacobians and force - // directions were set in the ctor and never change. - - if (m_numDofsFinalized != m_jacSizeBoth) - { - finalizeMultiDof(); - } - - //don't crash - if (m_numDofsFinalized != m_jacSizeBoth) - return; - - if (m_maxAppliedImpulse==0.f) - return; - - const btScalar posError = 0; - const btVector3 dummy(0, 0, 0); - - for (int row=0;row<getNumRows();row++) - { - btMultiBodySolverConstraint& constraintRow = constraintRows.expandNonInitializing(); - - int dof = 0; - btScalar currentPosition = m_bodyA->getJointPosMultiDof(m_linkA)[dof]; - btScalar currentVelocity = m_bodyA->getJointVelMultiDof(m_linkA)[dof]; - btScalar positionStabiliationTerm = m_erp*(m_desiredPosition-currentPosition)/infoGlobal.m_timeStep; - - btScalar velocityError = (m_desiredVelocity - currentVelocity); - btScalar rhs = m_kp * positionStabiliationTerm + currentVelocity+m_kd * velocityError; - if (rhs>m_rhsClamp) - { - rhs=m_rhsClamp; - } - if (rhs<-m_rhsClamp) - { - rhs=-m_rhsClamp; - } - - - fillMultiBodyConstraint(constraintRow,data,jacobianA(row),jacobianB(row),dummy,dummy,dummy,dummy,posError,infoGlobal,-m_maxAppliedImpulse,m_maxAppliedImpulse,false,1,false,rhs); - constraintRow.m_orgConstraint = this; - constraintRow.m_orgDofIndex = row; - { - //expect either prismatic or revolute joint type for now - btAssert((m_bodyA->getLink(m_linkA).m_jointType == btMultibodyLink::eRevolute)||(m_bodyA->getLink(m_linkA).m_jointType == btMultibodyLink::ePrismatic)); - switch (m_bodyA->getLink(m_linkA).m_jointType) - { - case btMultibodyLink::eRevolute: - { - constraintRow.m_contactNormal1.setZero(); - constraintRow.m_contactNormal2.setZero(); - btVector3 revoluteAxisInWorld = quatRotate(m_bodyA->getLink(m_linkA).m_cachedWorldTransform.getRotation(),m_bodyA->getLink(m_linkA).m_axes[0].m_topVec); - constraintRow.m_relpos1CrossNormal=revoluteAxisInWorld; - constraintRow.m_relpos2CrossNormal=-revoluteAxisInWorld; - - break; - } - case btMultibodyLink::ePrismatic: - { - btVector3 prismaticAxisInWorld = quatRotate(m_bodyA->getLink(m_linkA).m_cachedWorldTransform.getRotation(),m_bodyA->getLink(m_linkA).m_axes[0].m_bottomVec); - constraintRow.m_contactNormal1=prismaticAxisInWorld; - constraintRow.m_contactNormal2=-prismaticAxisInWorld; - constraintRow.m_relpos1CrossNormal.setZero(); - constraintRow.m_relpos2CrossNormal.setZero(); - - break; - } - default: - { - btAssert(0); - } - }; - - } - - } - -} - diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyJointMotor.h b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyJointMotor.h deleted file mode 100644 index 4063bed79a..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyJointMotor.h +++ /dev/null @@ -1,81 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -///This file was written by Erwin Coumans - -#ifndef BT_MULTIBODY_JOINT_MOTOR_H -#define BT_MULTIBODY_JOINT_MOTOR_H - -#include "btMultiBodyConstraint.h" -struct btSolverInfo; - -class btMultiBodyJointMotor : public btMultiBodyConstraint -{ -protected: - - btScalar m_desiredVelocity; - btScalar m_desiredPosition; - btScalar m_kd; - btScalar m_kp; - btScalar m_erp; - btScalar m_rhsClamp;//maximum error - - -public: - - btMultiBodyJointMotor(btMultiBody* body, int link, btScalar desiredVelocity, btScalar maxMotorImpulse); - btMultiBodyJointMotor(btMultiBody* body, int link, int linkDoF, btScalar desiredVelocity, btScalar maxMotorImpulse); - virtual ~btMultiBodyJointMotor(); - virtual void finalizeMultiDof(); - - virtual int getIslandIdA() const; - virtual int getIslandIdB() const; - - virtual void createConstraintRows(btMultiBodyConstraintArray& constraintRows, - btMultiBodyJacobianData& data, - const btContactSolverInfo& infoGlobal); - - virtual void setVelocityTarget(btScalar velTarget, btScalar kd = 1.f) - { - m_desiredVelocity = velTarget; - m_kd = kd; - } - - virtual void setPositionTarget(btScalar posTarget, btScalar kp = 1.f) - { - m_desiredPosition = posTarget; - m_kp = kp; - } - - virtual void setErp(btScalar erp) - { - m_erp = erp; - } - virtual btScalar getErp() const - { - return m_erp; - } - virtual void setRhsClamp(btScalar rhsClamp) - { - m_rhsClamp = rhsClamp; - } - virtual void debugDraw(class btIDebugDraw* drawer) - { - //todo(erwincoumans) - } -}; - -#endif //BT_MULTIBODY_JOINT_MOTOR_H - diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyLink.h b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyLink.h deleted file mode 100644 index 01828e5843..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyLink.h +++ /dev/null @@ -1,244 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_MULTIBODY_LINK_H -#define BT_MULTIBODY_LINK_H - -#include "LinearMath/btQuaternion.h" -#include "LinearMath/btVector3.h" -#include "BulletCollision/CollisionDispatch/btCollisionObject.h" - -enum btMultiBodyLinkFlags -{ - BT_MULTIBODYLINKFLAGS_DISABLE_PARENT_COLLISION = 1, - BT_MULTIBODYLINKFLAGS_DISABLE_ALL_PARENT_COLLISION = 2, -}; - -//both defines are now permanently enabled -#define BT_MULTIBODYLINK_INCLUDE_PLANAR_JOINTS -#define TEST_SPATIAL_ALGEBRA_LAYER - -// -// Various spatial helper functions -// - -//namespace { - - -#include "LinearMath/btSpatialAlgebra.h" - -//} - -// -// Link struct -// - -struct btMultibodyLink -{ - - BT_DECLARE_ALIGNED_ALLOCATOR(); - - btScalar m_mass; // mass of link - btVector3 m_inertiaLocal; // inertia of link (local frame; diagonal) - - int m_parent; // index of the parent link (assumed to be < index of this link), or -1 if parent is the base link. - - btQuaternion m_zeroRotParentToThis; // rotates vectors in parent-frame to vectors in local-frame (when q=0). constant. - - btVector3 m_dVector; // vector from the inboard joint pos to this link's COM. (local frame.) constant. - //this is set to zero for planar joint (see also m_eVector comment) - - // m_eVector is constant, but depends on the joint type: - // revolute, fixed, prismatic, spherical: vector from parent's COM to the pivot point, in PARENT's frame. - // planar: vector from COM of parent to COM of this link, WHEN Q = 0. (local frame.) - // todo: fix the planar so it is consistent with the other joints - - btVector3 m_eVector; - - btSpatialMotionVector m_absFrameTotVelocity, m_absFrameLocVelocity; - - enum eFeatherstoneJointType - { - eRevolute = 0, - ePrismatic = 1, - eSpherical = 2, - ePlanar = 3, - eFixed = 4, - eInvalid - }; - - - - // "axis" = spatial joint axis (Mirtich Defn 9 p104). (expressed in local frame.) constant. - // for prismatic: m_axesTop[0] = zero; - // m_axesBottom[0] = unit vector along the joint axis. - // for revolute: m_axesTop[0] = unit vector along the rotation axis (u); - // m_axesBottom[0] = u cross m_dVector (i.e. COM linear motion due to the rotation at the joint) - // - // for spherical: m_axesTop[0][1][2] (u1,u2,u3) form a 3x3 identity matrix (3 rotation axes) - // m_axesBottom[0][1][2] cross u1,u2,u3 (i.e. COM linear motion due to the rotation at the joint) - // - // for planar: m_axesTop[0] = unit vector along the rotation axis (u); defines the plane of motion - // m_axesTop[1][2] = zero - // m_axesBottom[0] = zero - // m_axesBottom[1][2] = unit vectors along the translational axes on that plane - btSpatialMotionVector m_axes[6]; - void setAxisTop(int dof, const btVector3 &axis) { m_axes[dof].m_topVec = axis; } - void setAxisBottom(int dof, const btVector3 &axis) - { - m_axes[dof].m_bottomVec = axis; - } - void setAxisTop(int dof, const btScalar &x, const btScalar &y, const btScalar &z) - { - m_axes[dof].m_topVec.setValue(x, y, z); - } - void setAxisBottom(int dof, const btScalar &x, const btScalar &y, const btScalar &z) - { - m_axes[dof].m_bottomVec.setValue(x, y, z); - } - const btVector3 & getAxisTop(int dof) const { return m_axes[dof].m_topVec; } - const btVector3 & getAxisBottom(int dof) const { return m_axes[dof].m_bottomVec; } - - int m_dofOffset, m_cfgOffset; - - btQuaternion m_cachedRotParentToThis; // rotates vectors in parent frame to vectors in local frame - btVector3 m_cachedRVector; // vector from COM of parent to COM of this link, in local frame. - - btVector3 m_appliedForce; // In WORLD frame - btVector3 m_appliedTorque; // In WORLD frame - -btVector3 m_appliedConstraintForce; // In WORLD frame - btVector3 m_appliedConstraintTorque; // In WORLD frame - - btScalar m_jointPos[7]; - - //m_jointTorque is the joint torque applied by the user using 'addJointTorque'. - //It gets set to zero after each internal stepSimulation call - btScalar m_jointTorque[6]; - - class btMultiBodyLinkCollider* m_collider; - int m_flags; - - - int m_dofCount, m_posVarCount; //redundant but handy - - eFeatherstoneJointType m_jointType; - - struct btMultiBodyJointFeedback* m_jointFeedback; - - btTransform m_cachedWorldTransform;//this cache is updated when calling btMultiBody::forwardKinematics - - const char* m_linkName;//m_linkName memory needs to be managed by the developer/user! - const char* m_jointName;//m_jointName memory needs to be managed by the developer/user! - const void* m_userPtr;//m_userPtr ptr needs to be managed by the developer/user! - - btScalar m_jointDamping; //todo: implement this internally. It is unused for now, it is set by a URDF loader. User can apply manual damping. - btScalar m_jointFriction; //todo: implement this internally. It is unused for now, it is set by a URDF loader. User can apply manual friction using a velocity motor. - btScalar m_jointLowerLimit; //todo: implement this internally. It is unused for now, it is set by a URDF loader. - btScalar m_jointUpperLimit; //todo: implement this internally. It is unused for now, it is set by a URDF loader. - btScalar m_jointMaxForce; //todo: implement this internally. It is unused for now, it is set by a URDF loader. - btScalar m_jointMaxVelocity;//todo: implement this internally. It is unused for now, it is set by a URDF loader. - - // ctor: set some sensible defaults - btMultibodyLink() - : m_mass(1), - m_parent(-1), - m_zeroRotParentToThis(0, 0, 0, 1), - m_cachedRotParentToThis(0, 0, 0, 1), - m_collider(0), - m_flags(0), - m_dofCount(0), - m_posVarCount(0), - m_jointType(btMultibodyLink::eInvalid), - m_jointFeedback(0), - m_linkName(0), - m_jointName(0), - m_userPtr(0), - m_jointDamping(0), - m_jointFriction(0), - m_jointLowerLimit(0), - m_jointUpperLimit(0), - m_jointMaxForce(0), - m_jointMaxVelocity(0) - { - - m_inertiaLocal.setValue(1, 1, 1); - setAxisTop(0, 0., 0., 0.); - setAxisBottom(0, 1., 0., 0.); - m_dVector.setValue(0, 0, 0); - m_eVector.setValue(0, 0, 0); - m_cachedRVector.setValue(0, 0, 0); - m_appliedForce.setValue( 0, 0, 0); - m_appliedTorque.setValue(0, 0, 0); - // - m_jointPos[0] = m_jointPos[1] = m_jointPos[2] = m_jointPos[4] = m_jointPos[5] = m_jointPos[6] = 0.f; - m_jointPos[3] = 1.f; //"quat.w" - m_jointTorque[0] = m_jointTorque[1] = m_jointTorque[2] = m_jointTorque[3] = m_jointTorque[4] = m_jointTorque[5] = 0.f; - m_cachedWorldTransform.setIdentity(); - } - - // routine to update m_cachedRotParentToThis and m_cachedRVector - void updateCacheMultiDof(btScalar *pq = 0) - { - btScalar *pJointPos = (pq ? pq : &m_jointPos[0]); - - switch(m_jointType) - { - case eRevolute: - { - m_cachedRotParentToThis = btQuaternion(getAxisTop(0),-pJointPos[0]) * m_zeroRotParentToThis; - m_cachedRVector = m_dVector + quatRotate(m_cachedRotParentToThis,m_eVector); - - break; - } - case ePrismatic: - { - // m_cachedRotParentToThis never changes, so no need to update - m_cachedRVector = m_dVector + quatRotate(m_cachedRotParentToThis,m_eVector) + pJointPos[0] * getAxisBottom(0); - - break; - } - case eSpherical: - { - m_cachedRotParentToThis = btQuaternion(pJointPos[0], pJointPos[1], pJointPos[2], -pJointPos[3]) * m_zeroRotParentToThis; - m_cachedRVector = m_dVector + quatRotate(m_cachedRotParentToThis,m_eVector); - - break; - } - case ePlanar: - { - m_cachedRotParentToThis = btQuaternion(getAxisTop(0),-pJointPos[0]) * m_zeroRotParentToThis; - m_cachedRVector = quatRotate(btQuaternion(getAxisTop(0),-pJointPos[0]), pJointPos[1] * getAxisBottom(1) + pJointPos[2] * getAxisBottom(2)) + quatRotate(m_cachedRotParentToThis,m_eVector); - - break; - } - case eFixed: - { - m_cachedRotParentToThis = m_zeroRotParentToThis; - m_cachedRVector = m_dVector + quatRotate(m_cachedRotParentToThis,m_eVector); - - break; - } - default: - { - //invalid type - btAssert(0); - } - } - } -}; - - -#endif //BT_MULTIBODY_LINK_H diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyLinkCollider.h b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyLinkCollider.h deleted file mode 100644 index 671e15d314..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyLinkCollider.h +++ /dev/null @@ -1,125 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_FEATHERSTONE_LINK_COLLIDER_H -#define BT_FEATHERSTONE_LINK_COLLIDER_H - -#include "BulletCollision/CollisionDispatch/btCollisionObject.h" - -#include "btMultiBody.h" - -class btMultiBodyLinkCollider : public btCollisionObject -{ -//protected: -public: - - btMultiBody* m_multiBody; - int m_link; - - - btMultiBodyLinkCollider (btMultiBody* multiBody,int link) - :m_multiBody(multiBody), - m_link(link) - { - m_checkCollideWith = true; - //we need to remove the 'CF_STATIC_OBJECT' flag, otherwise links/base doesn't merge islands - //this means that some constraints might point to bodies that are not in the islands, causing crashes - //if (link>=0 || (multiBody && !multiBody->hasFixedBase())) - { - m_collisionFlags &= (~btCollisionObject::CF_STATIC_OBJECT); - } - // else - //{ - // m_collisionFlags |= (btCollisionObject::CF_STATIC_OBJECT); - //} - - m_internalType = CO_FEATHERSTONE_LINK; - } - static btMultiBodyLinkCollider* upcast(btCollisionObject* colObj) - { - if (colObj->getInternalType()&btCollisionObject::CO_FEATHERSTONE_LINK) - return (btMultiBodyLinkCollider*)colObj; - return 0; - } - static const btMultiBodyLinkCollider* upcast(const btCollisionObject* colObj) - { - if (colObj->getInternalType()&btCollisionObject::CO_FEATHERSTONE_LINK) - return (btMultiBodyLinkCollider*)colObj; - return 0; - } - - virtual bool checkCollideWithOverride(const btCollisionObject* co) const - { - const btMultiBodyLinkCollider* other = btMultiBodyLinkCollider::upcast(co); - if (!other) - return true; - if (other->m_multiBody != this->m_multiBody) - return true; - if (!m_multiBody->hasSelfCollision()) - return false; - - //check if 'link' has collision disabled - if (m_link>=0) - { - const btMultibodyLink& link = m_multiBody->getLink(this->m_link); - if (link.m_flags&BT_MULTIBODYLINKFLAGS_DISABLE_ALL_PARENT_COLLISION) - { - int parent_of_this = m_link; - while (1) - { - if (parent_of_this==-1) - break; - parent_of_this = m_multiBody->getLink(parent_of_this).m_parent; - if (parent_of_this==other->m_link) - { - return false; - } - } - } - else if (link.m_flags&BT_MULTIBODYLINKFLAGS_DISABLE_PARENT_COLLISION) - { - if ( link.m_parent == other->m_link) - return false; - } - - } - - if (other->m_link>=0) - { - const btMultibodyLink& otherLink = other->m_multiBody->getLink(other->m_link); - if (otherLink.m_flags& BT_MULTIBODYLINKFLAGS_DISABLE_ALL_PARENT_COLLISION) - { - int parent_of_other = other->m_link; - while (1) - { - if (parent_of_other==-1) - break; - parent_of_other = m_multiBody->getLink(parent_of_other).m_parent; - if (parent_of_other==this->m_link) - return false; - } - } - else if (otherLink.m_flags& BT_MULTIBODYLINKFLAGS_DISABLE_PARENT_COLLISION) - { - if (otherLink.m_parent == this->m_link) - return false; - } - } - return true; - } -}; - -#endif //BT_FEATHERSTONE_LINK_COLLIDER_H - diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyPoint2Point.cpp b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyPoint2Point.cpp deleted file mode 100644 index 125d52ad0b..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyPoint2Point.cpp +++ /dev/null @@ -1,221 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -///This file was written by Erwin Coumans - -#include "btMultiBodyPoint2Point.h" -#include "btMultiBodyLinkCollider.h" -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include "LinearMath/btIDebugDraw.h" - -#ifndef BTMBP2PCONSTRAINT_BLOCK_ANGULAR_MOTION_TEST - #define BTMBP2PCONSTRAINT_DIM 3 -#else - #define BTMBP2PCONSTRAINT_DIM 6 -#endif - -btMultiBodyPoint2Point::btMultiBodyPoint2Point(btMultiBody* body, int link, btRigidBody* bodyB, const btVector3& pivotInA, const btVector3& pivotInB) - :btMultiBodyConstraint(body,0,link,-1,BTMBP2PCONSTRAINT_DIM,false), - m_rigidBodyA(0), - m_rigidBodyB(bodyB), - m_pivotInA(pivotInA), - m_pivotInB(pivotInB) -{ - m_data.resize(BTMBP2PCONSTRAINT_DIM);//at least store the applied impulses -} - -btMultiBodyPoint2Point::btMultiBodyPoint2Point(btMultiBody* bodyA, int linkA, btMultiBody* bodyB, int linkB, const btVector3& pivotInA, const btVector3& pivotInB) - :btMultiBodyConstraint(bodyA,bodyB,linkA,linkB,BTMBP2PCONSTRAINT_DIM,false), - m_rigidBodyA(0), - m_rigidBodyB(0), - m_pivotInA(pivotInA), - m_pivotInB(pivotInB) -{ - m_data.resize(BTMBP2PCONSTRAINT_DIM);//at least store the applied impulses -} - -void btMultiBodyPoint2Point::finalizeMultiDof() -{ - //not implemented yet - btAssert(0); -} - -btMultiBodyPoint2Point::~btMultiBodyPoint2Point() -{ -} - - -int btMultiBodyPoint2Point::getIslandIdA() const -{ - if (m_rigidBodyA) - return m_rigidBodyA->getIslandTag(); - - if (m_bodyA) - { - btMultiBodyLinkCollider* col = m_bodyA->getBaseCollider(); - if (col) - return col->getIslandTag(); - for (int i=0;i<m_bodyA->getNumLinks();i++) - { - if (m_bodyA->getLink(i).m_collider) - return m_bodyA->getLink(i).m_collider->getIslandTag(); - } - } - return -1; -} - -int btMultiBodyPoint2Point::getIslandIdB() const -{ - if (m_rigidBodyB) - return m_rigidBodyB->getIslandTag(); - if (m_bodyB) - { - btMultiBodyLinkCollider* col = m_bodyB->getBaseCollider(); - if (col) - return col->getIslandTag(); - - for (int i=0;i<m_bodyB->getNumLinks();i++) - { - col = m_bodyB->getLink(i).m_collider; - if (col) - return col->getIslandTag(); - } - } - return -1; -} - - - -void btMultiBodyPoint2Point::createConstraintRows(btMultiBodyConstraintArray& constraintRows, - btMultiBodyJacobianData& data, - const btContactSolverInfo& infoGlobal) -{ - -// int i=1; -int numDim = BTMBP2PCONSTRAINT_DIM; - for (int i=0;i<numDim;i++) - { - - btMultiBodySolverConstraint& constraintRow = constraintRows.expandNonInitializing(); - //memset(&constraintRow,0xffffffff,sizeof(btMultiBodySolverConstraint)); - constraintRow.m_orgConstraint = this; - constraintRow.m_orgDofIndex = i; - constraintRow.m_relpos1CrossNormal.setValue(0,0,0); - constraintRow.m_contactNormal1.setValue(0,0,0); - constraintRow.m_relpos2CrossNormal.setValue(0,0,0); - constraintRow.m_contactNormal2.setValue(0,0,0); - constraintRow.m_angularComponentA.setValue(0,0,0); - constraintRow.m_angularComponentB.setValue(0,0,0); - - constraintRow.m_solverBodyIdA = data.m_fixedBodyId; - constraintRow.m_solverBodyIdB = data.m_fixedBodyId; - - btVector3 contactNormalOnB(0,0,0); -#ifndef BTMBP2PCONSTRAINT_BLOCK_ANGULAR_MOTION_TEST - contactNormalOnB[i] = -1; -#else - contactNormalOnB[i%3] = -1; -#endif - - - // Convert local points back to world - btVector3 pivotAworld = m_pivotInA; - if (m_rigidBodyA) - { - - constraintRow.m_solverBodyIdA = m_rigidBodyA->getCompanionId(); - pivotAworld = m_rigidBodyA->getCenterOfMassTransform()*m_pivotInA; - } else - { - if (m_bodyA) - pivotAworld = m_bodyA->localPosToWorld(m_linkA, m_pivotInA); - } - btVector3 pivotBworld = m_pivotInB; - if (m_rigidBodyB) - { - constraintRow.m_solverBodyIdB = m_rigidBodyB->getCompanionId(); - pivotBworld = m_rigidBodyB->getCenterOfMassTransform()*m_pivotInB; - } else - { - if (m_bodyB) - pivotBworld = m_bodyB->localPosToWorld(m_linkB, m_pivotInB); - - } - - btScalar posError = i < 3 ? (pivotAworld-pivotBworld).dot(contactNormalOnB) : 0; - -#ifndef BTMBP2PCONSTRAINT_BLOCK_ANGULAR_MOTION_TEST - - - fillMultiBodyConstraint(constraintRow, data, 0, 0, btVector3(0,0,0), - contactNormalOnB, pivotAworld, pivotBworld, //sucks but let it be this way "for the time being" - posError, - infoGlobal, - -m_maxAppliedImpulse, m_maxAppliedImpulse - ); - //@todo: support the case of btMultiBody versus btRigidBody, - //see btPoint2PointConstraint::getInfo2NonVirtual -#else - const btVector3 dummy(0, 0, 0); - - btAssert(m_bodyA->isMultiDof()); - - btScalar* jac1 = jacobianA(i); - const btVector3 &normalAng = i >= 3 ? contactNormalOnB : dummy; - const btVector3 &normalLin = i < 3 ? contactNormalOnB : dummy; - - m_bodyA->filConstraintJacobianMultiDof(m_linkA, pivotAworld, normalAng, normalLin, jac1, data.scratch_r, data.scratch_v, data.scratch_m); - - fillMultiBodyConstraint(constraintRow, data, jac1, 0, - dummy, dummy, dummy, //sucks but let it be this way "for the time being" - posError, - infoGlobal, - -m_maxAppliedImpulse, m_maxAppliedImpulse - ); -#endif - } -} - -void btMultiBodyPoint2Point::debugDraw(class btIDebugDraw* drawer) -{ - btTransform tr; - tr.setIdentity(); - - if (m_rigidBodyA) - { - btVector3 pivot = m_rigidBodyA->getCenterOfMassTransform() * m_pivotInA; - tr.setOrigin(pivot); - drawer->drawTransform(tr, 0.1); - } - if (m_bodyA) - { - btVector3 pivotAworld = m_bodyA->localPosToWorld(m_linkA, m_pivotInA); - tr.setOrigin(pivotAworld); - drawer->drawTransform(tr, 0.1); - } - if (m_rigidBodyB) - { - // that ideally should draw the same frame - btVector3 pivot = m_rigidBodyB->getCenterOfMassTransform() * m_pivotInB; - tr.setOrigin(pivot); - drawer->drawTransform(tr, 0.1); - } - if (m_bodyB) - { - btVector3 pivotBworld = m_bodyB->localPosToWorld(m_linkB, m_pivotInB); - tr.setOrigin(pivotBworld); - drawer->drawTransform(tr, 0.1); - } -} diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyPoint2Point.h b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyPoint2Point.h deleted file mode 100644 index bf39acc5b9..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodyPoint2Point.h +++ /dev/null @@ -1,68 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -///This file was written by Erwin Coumans - -#ifndef BT_MULTIBODY_POINT2POINT_H -#define BT_MULTIBODY_POINT2POINT_H - -#include "btMultiBodyConstraint.h" - -//#define BTMBP2PCONSTRAINT_BLOCK_ANGULAR_MOTION_TEST - -ATTRIBUTE_ALIGNED16(class) btMultiBodyPoint2Point : public btMultiBodyConstraint -{ -protected: - - btRigidBody* m_rigidBodyA; - btRigidBody* m_rigidBodyB; - btVector3 m_pivotInA; - btVector3 m_pivotInB; - - -public: - - BT_DECLARE_ALIGNED_ALLOCATOR(); - - btMultiBodyPoint2Point(btMultiBody* body, int link, btRigidBody* bodyB, const btVector3& pivotInA, const btVector3& pivotInB); - btMultiBodyPoint2Point(btMultiBody* bodyA, int linkA, btMultiBody* bodyB, int linkB, const btVector3& pivotInA, const btVector3& pivotInB); - - virtual ~btMultiBodyPoint2Point(); - - virtual void finalizeMultiDof(); - - virtual int getIslandIdA() const; - virtual int getIslandIdB() const; - - virtual void createConstraintRows(btMultiBodyConstraintArray& constraintRows, - btMultiBodyJacobianData& data, - const btContactSolverInfo& infoGlobal); - - const btVector3& getPivotInB() const - { - return m_pivotInB; - } - - virtual void setPivotInB(const btVector3& pivotInB) - { - m_pivotInB = pivotInB; - } - - - virtual void debugDraw(class btIDebugDraw* drawer); - -}; - -#endif //BT_MULTIBODY_POINT2POINT_H diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodySliderConstraint.cpp b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodySliderConstraint.cpp deleted file mode 100644 index 3b64b8183f..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodySliderConstraint.cpp +++ /dev/null @@ -1,230 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -///This file was written by Erwin Coumans - -#include "btMultiBodySliderConstraint.h" -#include "btMultiBodyLinkCollider.h" -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include "BulletDynamics/ConstraintSolver/btGeneric6DofSpring2Constraint.h" -#include "LinearMath/btIDebugDraw.h" - -#define BTMBSLIDERCONSTRAINT_DIM 5 -#define EPSILON 0.000001 - -btMultiBodySliderConstraint::btMultiBodySliderConstraint(btMultiBody* body, int link, btRigidBody* bodyB, const btVector3& pivotInA, const btVector3& pivotInB, const btMatrix3x3& frameInA, const btMatrix3x3& frameInB, const btVector3& jointAxis) - :btMultiBodyConstraint(body,0,link,-1,BTMBSLIDERCONSTRAINT_DIM,false), - m_rigidBodyA(0), - m_rigidBodyB(bodyB), - m_pivotInA(pivotInA), - m_pivotInB(pivotInB), - m_frameInA(frameInA), - m_frameInB(frameInB), - m_jointAxis(jointAxis) -{ - m_data.resize(BTMBSLIDERCONSTRAINT_DIM);//at least store the applied impulses -} - -btMultiBodySliderConstraint::btMultiBodySliderConstraint(btMultiBody* bodyA, int linkA, btMultiBody* bodyB, int linkB, const btVector3& pivotInA, const btVector3& pivotInB, const btMatrix3x3& frameInA, const btMatrix3x3& frameInB, const btVector3& jointAxis) - :btMultiBodyConstraint(bodyA,bodyB,linkA,linkB,BTMBSLIDERCONSTRAINT_DIM,false), - m_rigidBodyA(0), - m_rigidBodyB(0), - m_pivotInA(pivotInA), - m_pivotInB(pivotInB), - m_frameInA(frameInA), - m_frameInB(frameInB), - m_jointAxis(jointAxis) -{ - m_data.resize(BTMBSLIDERCONSTRAINT_DIM);//at least store the applied impulses -} - -void btMultiBodySliderConstraint::finalizeMultiDof() -{ - //not implemented yet - btAssert(0); -} - -btMultiBodySliderConstraint::~btMultiBodySliderConstraint() -{ -} - - -int btMultiBodySliderConstraint::getIslandIdA() const -{ - if (m_rigidBodyA) - return m_rigidBodyA->getIslandTag(); - - if (m_bodyA) - { - btMultiBodyLinkCollider* col = m_bodyA->getBaseCollider(); - if (col) - return col->getIslandTag(); - for (int i=0;i<m_bodyA->getNumLinks();i++) - { - if (m_bodyA->getLink(i).m_collider) - return m_bodyA->getLink(i).m_collider->getIslandTag(); - } - } - return -1; -} - -int btMultiBodySliderConstraint::getIslandIdB() const -{ - if (m_rigidBodyB) - return m_rigidBodyB->getIslandTag(); - if (m_bodyB) - { - btMultiBodyLinkCollider* col = m_bodyB->getBaseCollider(); - if (col) - return col->getIslandTag(); - - for (int i=0;i<m_bodyB->getNumLinks();i++) - { - col = m_bodyB->getLink(i).m_collider; - if (col) - return col->getIslandTag(); - } - } - return -1; -} - -void btMultiBodySliderConstraint::createConstraintRows(btMultiBodyConstraintArray& constraintRows, btMultiBodyJacobianData& data, const btContactSolverInfo& infoGlobal) -{ - // Convert local points back to world - btVector3 pivotAworld = m_pivotInA; - btMatrix3x3 frameAworld = m_frameInA; - btVector3 jointAxis = m_jointAxis; - if (m_rigidBodyA) - { - pivotAworld = m_rigidBodyA->getCenterOfMassTransform()*m_pivotInA; - frameAworld = m_frameInA.transpose()*btMatrix3x3(m_rigidBodyA->getOrientation()); - jointAxis = quatRotate(m_rigidBodyA->getOrientation(),m_jointAxis); - - } else if (m_bodyA) { - pivotAworld = m_bodyA->localPosToWorld(m_linkA, m_pivotInA); - frameAworld = m_bodyA->localFrameToWorld(m_linkA, m_frameInA); - jointAxis = m_bodyA->localDirToWorld(m_linkA, m_jointAxis); - } - btVector3 pivotBworld = m_pivotInB; - btMatrix3x3 frameBworld = m_frameInB; - if (m_rigidBodyB) - { - pivotBworld = m_rigidBodyB->getCenterOfMassTransform()*m_pivotInB; - frameBworld = m_frameInB.transpose()*btMatrix3x3(m_rigidBodyB->getOrientation()); - - } else if (m_bodyB) { - pivotBworld = m_bodyB->localPosToWorld(m_linkB, m_pivotInB); - frameBworld = m_bodyB->localFrameToWorld(m_linkB, m_frameInB); - } - - btVector3 constraintAxis[2]; - for (int i = 0; i < 3; ++i) - { - constraintAxis[0] = frameAworld.getColumn(i).cross(jointAxis); - if (constraintAxis[0].safeNorm() > EPSILON) - { - constraintAxis[0] = constraintAxis[0].normalized(); - constraintAxis[1] = jointAxis.cross(constraintAxis[0]); - constraintAxis[1] = constraintAxis[1].normalized(); - break; - } - } - - btMatrix3x3 relRot = frameAworld.inverse()*frameBworld; - btVector3 angleDiff; - btGeneric6DofSpring2Constraint::matrixToEulerXYZ(relRot,angleDiff); - - int numDim = BTMBSLIDERCONSTRAINT_DIM; - for (int i=0;i<numDim;i++) - { - btMultiBodySolverConstraint& constraintRow = constraintRows.expandNonInitializing(); - constraintRow.m_orgConstraint = this; - constraintRow.m_orgDofIndex = i; - constraintRow.m_relpos1CrossNormal.setValue(0,0,0); - constraintRow.m_contactNormal1.setValue(0,0,0); - constraintRow.m_relpos2CrossNormal.setValue(0,0,0); - constraintRow.m_contactNormal2.setValue(0,0,0); - constraintRow.m_angularComponentA.setValue(0,0,0); - constraintRow.m_angularComponentB.setValue(0,0,0); - - constraintRow.m_solverBodyIdA = data.m_fixedBodyId; - constraintRow.m_solverBodyIdB = data.m_fixedBodyId; - - if (m_rigidBodyA) - { - constraintRow.m_solverBodyIdA = m_rigidBodyA->getCompanionId(); - } - if (m_rigidBodyB) - { - constraintRow.m_solverBodyIdB = m_rigidBodyB->getCompanionId(); - } - - btVector3 constraintNormalLin(0,0,0); - btVector3 constraintNormalAng(0,0,0); - btScalar posError = 0.0; - if (i < 2) { - constraintNormalLin = constraintAxis[i]; - posError = (pivotAworld-pivotBworld).dot(constraintNormalLin); - fillMultiBodyConstraint(constraintRow, data, 0, 0, constraintNormalAng, - constraintNormalLin, pivotAworld, pivotBworld, - posError, - infoGlobal, - -m_maxAppliedImpulse, m_maxAppliedImpulse - ); - } - else { //i>=2 - constraintNormalAng = frameAworld.getColumn(i%3); - posError = angleDiff[i%3]; - fillMultiBodyConstraint(constraintRow, data, 0, 0, constraintNormalAng, - constraintNormalLin, pivotAworld, pivotBworld, - posError, - infoGlobal, - -m_maxAppliedImpulse, m_maxAppliedImpulse, true - ); - } - } -} - -void btMultiBodySliderConstraint::debugDraw(class btIDebugDraw* drawer) -{ - btTransform tr; - tr.setIdentity(); - - if (m_rigidBodyA) - { - btVector3 pivot = m_rigidBodyA->getCenterOfMassTransform() * m_pivotInA; - tr.setOrigin(pivot); - drawer->drawTransform(tr, 0.1); - } - if (m_bodyA) - { - btVector3 pivotAworld = m_bodyA->localPosToWorld(m_linkA, m_pivotInA); - tr.setOrigin(pivotAworld); - drawer->drawTransform(tr, 0.1); - } - if (m_rigidBodyB) - { - // that ideally should draw the same frame - btVector3 pivot = m_rigidBodyB->getCenterOfMassTransform() * m_pivotInB; - tr.setOrigin(pivot); - drawer->drawTransform(tr, 0.1); - } - if (m_bodyB) - { - btVector3 pivotBworld = m_bodyB->localPosToWorld(m_linkB, m_pivotInB); - tr.setOrigin(pivotBworld); - drawer->drawTransform(tr, 0.1); - } -} diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodySliderConstraint.h b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodySliderConstraint.h deleted file mode 100644 index 0a6cf3df12..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodySliderConstraint.h +++ /dev/null @@ -1,105 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -///This file was written by Erwin Coumans - -#ifndef BT_MULTIBODY_SLIDER_CONSTRAINT_H -#define BT_MULTIBODY_SLIDER_CONSTRAINT_H - -#include "btMultiBodyConstraint.h" - -class btMultiBodySliderConstraint : public btMultiBodyConstraint -{ -protected: - - btRigidBody* m_rigidBodyA; - btRigidBody* m_rigidBodyB; - btVector3 m_pivotInA; - btVector3 m_pivotInB; - btMatrix3x3 m_frameInA; - btMatrix3x3 m_frameInB; - btVector3 m_jointAxis; - -public: - - btMultiBodySliderConstraint(btMultiBody* body, int link, btRigidBody* bodyB, const btVector3& pivotInA, const btVector3& pivotInB, const btMatrix3x3& frameInA, const btMatrix3x3& frameInB, const btVector3& jointAxis); - btMultiBodySliderConstraint(btMultiBody* bodyA, int linkA, btMultiBody* bodyB, int linkB, const btVector3& pivotInA, const btVector3& pivotInB, const btMatrix3x3& frameInA, const btMatrix3x3& frameInB, const btVector3& jointAxis); - - virtual ~btMultiBodySliderConstraint(); - - virtual void finalizeMultiDof(); - - virtual int getIslandIdA() const; - virtual int getIslandIdB() const; - - virtual void createConstraintRows(btMultiBodyConstraintArray& constraintRows, - btMultiBodyJacobianData& data, - const btContactSolverInfo& infoGlobal); - - const btVector3& getPivotInA() const - { - return m_pivotInA; - } - - void setPivotInA(const btVector3& pivotInA) - { - m_pivotInA = pivotInA; - } - - const btVector3& getPivotInB() const - { - return m_pivotInB; - } - - virtual void setPivotInB(const btVector3& pivotInB) - { - m_pivotInB = pivotInB; - } - - const btMatrix3x3& getFrameInA() const - { - return m_frameInA; - } - - void setFrameInA(const btMatrix3x3& frameInA) - { - m_frameInA = frameInA; - } - - const btMatrix3x3& getFrameInB() const - { - return m_frameInB; - } - - virtual void setFrameInB(const btMatrix3x3& frameInB) - { - m_frameInB = frameInB; - } - - const btVector3& getJointAxis() const - { - return m_jointAxis; - } - - void setJointAxis(const btVector3& jointAxis) - { - m_jointAxis = jointAxis; - } - - virtual void debugDraw(class btIDebugDraw* drawer); - -}; - -#endif //BT_MULTIBODY_SLIDER_CONSTRAINT_H diff --git a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodySolverConstraint.h b/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodySolverConstraint.h deleted file mode 100644 index 6fa1550e9e..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Featherstone/btMultiBodySolverConstraint.h +++ /dev/null @@ -1,90 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef BT_MULTIBODY_SOLVER_CONSTRAINT_H -#define BT_MULTIBODY_SOLVER_CONSTRAINT_H - -#include "LinearMath/btVector3.h" -#include "LinearMath/btAlignedObjectArray.h" - -class btMultiBody; -class btMultiBodyConstraint; -#include "BulletDynamics/ConstraintSolver/btSolverBody.h" -#include "BulletDynamics/ConstraintSolver/btContactSolverInfo.h" - -///1D constraint along a normal axis between bodyA and bodyB. It can be combined to solve contact and friction constraints. -ATTRIBUTE_ALIGNED16 (struct) btMultiBodySolverConstraint -{ - BT_DECLARE_ALIGNED_ALLOCATOR(); - - btMultiBodySolverConstraint() : m_solverBodyIdA(-1), m_multiBodyA(0), m_linkA(-1), m_solverBodyIdB(-1), m_multiBodyB(0), m_linkB(-1),m_orgConstraint(0), m_orgDofIndex(-1) - {} - - int m_deltaVelAindex;//more generic version of m_relpos1CrossNormal/m_contactNormal1 - int m_jacAindex; - int m_deltaVelBindex; - int m_jacBindex; - - btVector3 m_relpos1CrossNormal; - btVector3 m_contactNormal1; - btVector3 m_relpos2CrossNormal; - btVector3 m_contactNormal2; //usually m_contactNormal2 == -m_contactNormal1, but not always - - - btVector3 m_angularComponentA; - btVector3 m_angularComponentB; - - mutable btSimdScalar m_appliedPushImpulse; - mutable btSimdScalar m_appliedImpulse; - - btScalar m_friction; - btScalar m_jacDiagABInv; - btScalar m_rhs; - btScalar m_cfm; - - btScalar m_lowerLimit; - btScalar m_upperLimit; - btScalar m_rhsPenetration; - union - { - void* m_originalContactPoint; - btScalar m_unusedPadding4; - }; - - int m_overrideNumSolverIterations; - int m_frictionIndex; - - int m_solverBodyIdA; - btMultiBody* m_multiBodyA; - int m_linkA; - - int m_solverBodyIdB; - btMultiBody* m_multiBodyB; - int m_linkB; - - //for writing back applied impulses - btMultiBodyConstraint* m_orgConstraint; - int m_orgDofIndex; - - enum btSolverConstraintType - { - BT_SOLVER_CONTACT_1D = 0, - BT_SOLVER_FRICTION_1D - }; -}; - -typedef btAlignedObjectArray<btMultiBodySolverConstraint> btMultiBodyConstraintArray; - -#endif //BT_MULTIBODY_SOLVER_CONSTRAINT_H diff --git a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btDantzigLCP.cpp b/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btDantzigLCP.cpp deleted file mode 100644 index 986f214870..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btDantzigLCP.cpp +++ /dev/null @@ -1,2080 +0,0 @@ -/************************************************************************* -* * -* Open Dynamics Engine, Copyright (C) 2001,2002 Russell L. Smith. * -* All rights reserved. Email: russ@q12.org Web: www.q12.org * -* * -* This library is free software; you can redistribute it and/or * -* modify it under the terms of EITHER: * -* (1) The GNU Lesser General Public License as published by the Free * -* Software Foundation; either version 2.1 of the License, or (at * -* your option) any later version. The text of the GNU Lesser * -* General Public License is included with this library in the * -* file LICENSE.TXT. * -* (2) The BSD-style license that is included with this library in * -* the file LICENSE-BSD.TXT. * -* * -* This library is distributed in the hope that it will be useful, * -* but WITHOUT ANY WARRANTY; without even the implied warranty of * -* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files * -* LICENSE.TXT and LICENSE-BSD.TXT for more details. * -* * -*************************************************************************/ - -/* - - -THE ALGORITHM -------------- - -solve A*x = b+w, with x and w subject to certain LCP conditions. -each x(i),w(i) must lie on one of the three line segments in the following -diagram. each line segment corresponds to one index set : - - w(i) - /|\ | : - | | : - | |i in N : - w>0 | |state[i]=0 : - | | : - | | : i in C - w=0 + +-----------------------+ - | : | - | : | - w<0 | : |i in N - | : |state[i]=1 - | : | - | : | - +-------|-----------|-----------|----------> x(i) - lo 0 hi - -the Dantzig algorithm proceeds as follows: - for i=1:n - * if (x(i),w(i)) is not on the line, push x(i) and w(i) positive or - negative towards the line. as this is done, the other (x(j),w(j)) - for j<i are constrained to be on the line. if any (x,w) reaches the - end of a line segment then it is switched between index sets. - * i is added to the appropriate index set depending on what line segment - it hits. - -we restrict lo(i) <= 0 and hi(i) >= 0. this makes the algorithm a bit -simpler, because the starting point for x(i),w(i) is always on the dotted -line x=0 and x will only ever increase in one direction, so it can only hit -two out of the three line segments. - - -NOTES ------ - -this is an implementation of "lcp_dantzig2_ldlt.m" and "lcp_dantzig_lohi.m". -the implementation is split into an LCP problem object (btLCP) and an LCP -driver function. most optimization occurs in the btLCP object. - -a naive implementation of the algorithm requires either a lot of data motion -or a lot of permutation-array lookup, because we are constantly re-ordering -rows and columns. to avoid this and make a more optimized algorithm, a -non-trivial data structure is used to represent the matrix A (this is -implemented in the fast version of the btLCP object). - -during execution of this algorithm, some indexes in A are clamped (set C), -some are non-clamped (set N), and some are "don't care" (where x=0). -A,x,b,w (and other problem vectors) are permuted such that the clamped -indexes are first, the unclamped indexes are next, and the don't-care -indexes are last. this permutation is recorded in the array `p'. -initially p = 0..n-1, and as the rows and columns of A,x,b,w are swapped, -the corresponding elements of p are swapped. - -because the C and N elements are grouped together in the rows of A, we can do -lots of work with a fast dot product function. if A,x,etc were not permuted -and we only had a permutation array, then those dot products would be much -slower as we would have a permutation array lookup in some inner loops. - -A is accessed through an array of row pointers, so that element (i,j) of the -permuted matrix is A[i][j]. this makes row swapping fast. for column swapping -we still have to actually move the data. - -during execution of this algorithm we maintain an L*D*L' factorization of -the clamped submatrix of A (call it `AC') which is the top left nC*nC -submatrix of A. there are two ways we could arrange the rows/columns in AC. - -(1) AC is always permuted such that L*D*L' = AC. this causes a problem -when a row/column is removed from C, because then all the rows/columns of A -between the deleted index and the end of C need to be rotated downward. -this results in a lot of data motion and slows things down. -(2) L*D*L' is actually a factorization of a *permutation* of AC (which is -itself a permutation of the underlying A). this is what we do - the -permutation is recorded in the vector C. call this permutation A[C,C]. -when a row/column is removed from C, all we have to do is swap two -rows/columns and manipulate C. - -*/ - - -#include "btDantzigLCP.h" - -#include <string.h>//memcpy - -bool s_error = false; - -//*************************************************************************** -// code generation parameters - - -#define btLCP_FAST // use fast btLCP object - -// option 1 : matrix row pointers (less data copying) -#define BTROWPTRS -#define BTATYPE btScalar ** -#define BTAROW(i) (m_A[i]) - -// option 2 : no matrix row pointers (slightly faster inner loops) -//#define NOROWPTRS -//#define BTATYPE btScalar * -//#define BTAROW(i) (m_A+(i)*m_nskip) - -#define BTNUB_OPTIMIZATIONS - - - -/* solve L*X=B, with B containing 1 right hand sides. - * L is an n*n lower triangular matrix with ones on the diagonal. - * L is stored by rows and its leading dimension is lskip. - * B is an n*1 matrix that contains the right hand sides. - * B is stored by columns and its leading dimension is also lskip. - * B is overwritten with X. - * this processes blocks of 2*2. - * if this is in the factorizer source file, n must be a multiple of 2. - */ - -static void btSolveL1_1 (const btScalar *L, btScalar *B, int n, int lskip1) -{ - /* declare variables - Z matrix, p and q vectors, etc */ - btScalar Z11,m11,Z21,m21,p1,q1,p2,*ex; - const btScalar *ell; - int i,j; - /* compute all 2 x 1 blocks of X */ - for (i=0; i < n; i+=2) { - /* compute all 2 x 1 block of X, from rows i..i+2-1 */ - /* set the Z matrix to 0 */ - Z11=0; - Z21=0; - ell = L + i*lskip1; - ex = B; - /* the inner loop that computes outer products and adds them to Z */ - for (j=i-2; j >= 0; j -= 2) { - /* compute outer product and add it to the Z matrix */ - p1=ell[0]; - q1=ex[0]; - m11 = p1 * q1; - p2=ell[lskip1]; - m21 = p2 * q1; - Z11 += m11; - Z21 += m21; - /* compute outer product and add it to the Z matrix */ - p1=ell[1]; - q1=ex[1]; - m11 = p1 * q1; - p2=ell[1+lskip1]; - m21 = p2 * q1; - /* advance pointers */ - ell += 2; - ex += 2; - Z11 += m11; - Z21 += m21; - /* end of inner loop */ - } - /* compute left-over iterations */ - j += 2; - for (; j > 0; j--) { - /* compute outer product and add it to the Z matrix */ - p1=ell[0]; - q1=ex[0]; - m11 = p1 * q1; - p2=ell[lskip1]; - m21 = p2 * q1; - /* advance pointers */ - ell += 1; - ex += 1; - Z11 += m11; - Z21 += m21; - } - /* finish computing the X(i) block */ - Z11 = ex[0] - Z11; - ex[0] = Z11; - p1 = ell[lskip1]; - Z21 = ex[1] - Z21 - p1*Z11; - ex[1] = Z21; - /* end of outer loop */ - } -} - -/* solve L*X=B, with B containing 2 right hand sides. - * L is an n*n lower triangular matrix with ones on the diagonal. - * L is stored by rows and its leading dimension is lskip. - * B is an n*2 matrix that contains the right hand sides. - * B is stored by columns and its leading dimension is also lskip. - * B is overwritten with X. - * this processes blocks of 2*2. - * if this is in the factorizer source file, n must be a multiple of 2. - */ - -static void btSolveL1_2 (const btScalar *L, btScalar *B, int n, int lskip1) -{ - /* declare variables - Z matrix, p and q vectors, etc */ - btScalar Z11,m11,Z12,m12,Z21,m21,Z22,m22,p1,q1,p2,q2,*ex; - const btScalar *ell; - int i,j; - /* compute all 2 x 2 blocks of X */ - for (i=0; i < n; i+=2) { - /* compute all 2 x 2 block of X, from rows i..i+2-1 */ - /* set the Z matrix to 0 */ - Z11=0; - Z12=0; - Z21=0; - Z22=0; - ell = L + i*lskip1; - ex = B; - /* the inner loop that computes outer products and adds them to Z */ - for (j=i-2; j >= 0; j -= 2) { - /* compute outer product and add it to the Z matrix */ - p1=ell[0]; - q1=ex[0]; - m11 = p1 * q1; - q2=ex[lskip1]; - m12 = p1 * q2; - p2=ell[lskip1]; - m21 = p2 * q1; - m22 = p2 * q2; - Z11 += m11; - Z12 += m12; - Z21 += m21; - Z22 += m22; - /* compute outer product and add it to the Z matrix */ - p1=ell[1]; - q1=ex[1]; - m11 = p1 * q1; - q2=ex[1+lskip1]; - m12 = p1 * q2; - p2=ell[1+lskip1]; - m21 = p2 * q1; - m22 = p2 * q2; - /* advance pointers */ - ell += 2; - ex += 2; - Z11 += m11; - Z12 += m12; - Z21 += m21; - Z22 += m22; - /* end of inner loop */ - } - /* compute left-over iterations */ - j += 2; - for (; j > 0; j--) { - /* compute outer product and add it to the Z matrix */ - p1=ell[0]; - q1=ex[0]; - m11 = p1 * q1; - q2=ex[lskip1]; - m12 = p1 * q2; - p2=ell[lskip1]; - m21 = p2 * q1; - m22 = p2 * q2; - /* advance pointers */ - ell += 1; - ex += 1; - Z11 += m11; - Z12 += m12; - Z21 += m21; - Z22 += m22; - } - /* finish computing the X(i) block */ - Z11 = ex[0] - Z11; - ex[0] = Z11; - Z12 = ex[lskip1] - Z12; - ex[lskip1] = Z12; - p1 = ell[lskip1]; - Z21 = ex[1] - Z21 - p1*Z11; - ex[1] = Z21; - Z22 = ex[1+lskip1] - Z22 - p1*Z12; - ex[1+lskip1] = Z22; - /* end of outer loop */ - } -} - - -void btFactorLDLT (btScalar *A, btScalar *d, int n, int nskip1) -{ - int i,j; - btScalar sum,*ell,*dee,dd,p1,p2,q1,q2,Z11,m11,Z21,m21,Z22,m22; - if (n < 1) return; - - for (i=0; i<=n-2; i += 2) { - /* solve L*(D*l)=a, l is scaled elements in 2 x i block at A(i,0) */ - btSolveL1_2 (A,A+i*nskip1,i,nskip1); - /* scale the elements in a 2 x i block at A(i,0), and also */ - /* compute Z = the outer product matrix that we'll need. */ - Z11 = 0; - Z21 = 0; - Z22 = 0; - ell = A+i*nskip1; - dee = d; - for (j=i-6; j >= 0; j -= 6) { - p1 = ell[0]; - p2 = ell[nskip1]; - dd = dee[0]; - q1 = p1*dd; - q2 = p2*dd; - ell[0] = q1; - ell[nskip1] = q2; - m11 = p1*q1; - m21 = p2*q1; - m22 = p2*q2; - Z11 += m11; - Z21 += m21; - Z22 += m22; - p1 = ell[1]; - p2 = ell[1+nskip1]; - dd = dee[1]; - q1 = p1*dd; - q2 = p2*dd; - ell[1] = q1; - ell[1+nskip1] = q2; - m11 = p1*q1; - m21 = p2*q1; - m22 = p2*q2; - Z11 += m11; - Z21 += m21; - Z22 += m22; - p1 = ell[2]; - p2 = ell[2+nskip1]; - dd = dee[2]; - q1 = p1*dd; - q2 = p2*dd; - ell[2] = q1; - ell[2+nskip1] = q2; - m11 = p1*q1; - m21 = p2*q1; - m22 = p2*q2; - Z11 += m11; - Z21 += m21; - Z22 += m22; - p1 = ell[3]; - p2 = ell[3+nskip1]; - dd = dee[3]; - q1 = p1*dd; - q2 = p2*dd; - ell[3] = q1; - ell[3+nskip1] = q2; - m11 = p1*q1; - m21 = p2*q1; - m22 = p2*q2; - Z11 += m11; - Z21 += m21; - Z22 += m22; - p1 = ell[4]; - p2 = ell[4+nskip1]; - dd = dee[4]; - q1 = p1*dd; - q2 = p2*dd; - ell[4] = q1; - ell[4+nskip1] = q2; - m11 = p1*q1; - m21 = p2*q1; - m22 = p2*q2; - Z11 += m11; - Z21 += m21; - Z22 += m22; - p1 = ell[5]; - p2 = ell[5+nskip1]; - dd = dee[5]; - q1 = p1*dd; - q2 = p2*dd; - ell[5] = q1; - ell[5+nskip1] = q2; - m11 = p1*q1; - m21 = p2*q1; - m22 = p2*q2; - Z11 += m11; - Z21 += m21; - Z22 += m22; - ell += 6; - dee += 6; - } - /* compute left-over iterations */ - j += 6; - for (; j > 0; j--) { - p1 = ell[0]; - p2 = ell[nskip1]; - dd = dee[0]; - q1 = p1*dd; - q2 = p2*dd; - ell[0] = q1; - ell[nskip1] = q2; - m11 = p1*q1; - m21 = p2*q1; - m22 = p2*q2; - Z11 += m11; - Z21 += m21; - Z22 += m22; - ell++; - dee++; - } - /* solve for diagonal 2 x 2 block at A(i,i) */ - Z11 = ell[0] - Z11; - Z21 = ell[nskip1] - Z21; - Z22 = ell[1+nskip1] - Z22; - dee = d + i; - /* factorize 2 x 2 block Z,dee */ - /* factorize row 1 */ - dee[0] = btRecip(Z11); - /* factorize row 2 */ - sum = 0; - q1 = Z21; - q2 = q1 * dee[0]; - Z21 = q2; - sum += q1*q2; - dee[1] = btRecip(Z22 - sum); - /* done factorizing 2 x 2 block */ - ell[nskip1] = Z21; - } - /* compute the (less than 2) rows at the bottom */ - switch (n-i) { - case 0: - break; - - case 1: - btSolveL1_1 (A,A+i*nskip1,i,nskip1); - /* scale the elements in a 1 x i block at A(i,0), and also */ - /* compute Z = the outer product matrix that we'll need. */ - Z11 = 0; - ell = A+i*nskip1; - dee = d; - for (j=i-6; j >= 0; j -= 6) { - p1 = ell[0]; - dd = dee[0]; - q1 = p1*dd; - ell[0] = q1; - m11 = p1*q1; - Z11 += m11; - p1 = ell[1]; - dd = dee[1]; - q1 = p1*dd; - ell[1] = q1; - m11 = p1*q1; - Z11 += m11; - p1 = ell[2]; - dd = dee[2]; - q1 = p1*dd; - ell[2] = q1; - m11 = p1*q1; - Z11 += m11; - p1 = ell[3]; - dd = dee[3]; - q1 = p1*dd; - ell[3] = q1; - m11 = p1*q1; - Z11 += m11; - p1 = ell[4]; - dd = dee[4]; - q1 = p1*dd; - ell[4] = q1; - m11 = p1*q1; - Z11 += m11; - p1 = ell[5]; - dd = dee[5]; - q1 = p1*dd; - ell[5] = q1; - m11 = p1*q1; - Z11 += m11; - ell += 6; - dee += 6; - } - /* compute left-over iterations */ - j += 6; - for (; j > 0; j--) { - p1 = ell[0]; - dd = dee[0]; - q1 = p1*dd; - ell[0] = q1; - m11 = p1*q1; - Z11 += m11; - ell++; - dee++; - } - /* solve for diagonal 1 x 1 block at A(i,i) */ - Z11 = ell[0] - Z11; - dee = d + i; - /* factorize 1 x 1 block Z,dee */ - /* factorize row 1 */ - dee[0] = btRecip(Z11); - /* done factorizing 1 x 1 block */ - break; - - //default: *((char*)0)=0; /* this should never happen! */ - } -} - -/* solve L*X=B, with B containing 1 right hand sides. - * L is an n*n lower triangular matrix with ones on the diagonal. - * L is stored by rows and its leading dimension is lskip. - * B is an n*1 matrix that contains the right hand sides. - * B is stored by columns and its leading dimension is also lskip. - * B is overwritten with X. - * this processes blocks of 4*4. - * if this is in the factorizer source file, n must be a multiple of 4. - */ - -void btSolveL1 (const btScalar *L, btScalar *B, int n, int lskip1) -{ - /* declare variables - Z matrix, p and q vectors, etc */ - btScalar Z11,Z21,Z31,Z41,p1,q1,p2,p3,p4,*ex; - const btScalar *ell; - int lskip2,lskip3,i,j; - /* compute lskip values */ - lskip2 = 2*lskip1; - lskip3 = 3*lskip1; - /* compute all 4 x 1 blocks of X */ - for (i=0; i <= n-4; i+=4) { - /* compute all 4 x 1 block of X, from rows i..i+4-1 */ - /* set the Z matrix to 0 */ - Z11=0; - Z21=0; - Z31=0; - Z41=0; - ell = L + i*lskip1; - ex = B; - /* the inner loop that computes outer products and adds them to Z */ - for (j=i-12; j >= 0; j -= 12) { - /* load p and q values */ - p1=ell[0]; - q1=ex[0]; - p2=ell[lskip1]; - p3=ell[lskip2]; - p4=ell[lskip3]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - Z21 += p2 * q1; - Z31 += p3 * q1; - Z41 += p4 * q1; - /* load p and q values */ - p1=ell[1]; - q1=ex[1]; - p2=ell[1+lskip1]; - p3=ell[1+lskip2]; - p4=ell[1+lskip3]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - Z21 += p2 * q1; - Z31 += p3 * q1; - Z41 += p4 * q1; - /* load p and q values */ - p1=ell[2]; - q1=ex[2]; - p2=ell[2+lskip1]; - p3=ell[2+lskip2]; - p4=ell[2+lskip3]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - Z21 += p2 * q1; - Z31 += p3 * q1; - Z41 += p4 * q1; - /* load p and q values */ - p1=ell[3]; - q1=ex[3]; - p2=ell[3+lskip1]; - p3=ell[3+lskip2]; - p4=ell[3+lskip3]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - Z21 += p2 * q1; - Z31 += p3 * q1; - Z41 += p4 * q1; - /* load p and q values */ - p1=ell[4]; - q1=ex[4]; - p2=ell[4+lskip1]; - p3=ell[4+lskip2]; - p4=ell[4+lskip3]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - Z21 += p2 * q1; - Z31 += p3 * q1; - Z41 += p4 * q1; - /* load p and q values */ - p1=ell[5]; - q1=ex[5]; - p2=ell[5+lskip1]; - p3=ell[5+lskip2]; - p4=ell[5+lskip3]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - Z21 += p2 * q1; - Z31 += p3 * q1; - Z41 += p4 * q1; - /* load p and q values */ - p1=ell[6]; - q1=ex[6]; - p2=ell[6+lskip1]; - p3=ell[6+lskip2]; - p4=ell[6+lskip3]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - Z21 += p2 * q1; - Z31 += p3 * q1; - Z41 += p4 * q1; - /* load p and q values */ - p1=ell[7]; - q1=ex[7]; - p2=ell[7+lskip1]; - p3=ell[7+lskip2]; - p4=ell[7+lskip3]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - Z21 += p2 * q1; - Z31 += p3 * q1; - Z41 += p4 * q1; - /* load p and q values */ - p1=ell[8]; - q1=ex[8]; - p2=ell[8+lskip1]; - p3=ell[8+lskip2]; - p4=ell[8+lskip3]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - Z21 += p2 * q1; - Z31 += p3 * q1; - Z41 += p4 * q1; - /* load p and q values */ - p1=ell[9]; - q1=ex[9]; - p2=ell[9+lskip1]; - p3=ell[9+lskip2]; - p4=ell[9+lskip3]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - Z21 += p2 * q1; - Z31 += p3 * q1; - Z41 += p4 * q1; - /* load p and q values */ - p1=ell[10]; - q1=ex[10]; - p2=ell[10+lskip1]; - p3=ell[10+lskip2]; - p4=ell[10+lskip3]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - Z21 += p2 * q1; - Z31 += p3 * q1; - Z41 += p4 * q1; - /* load p and q values */ - p1=ell[11]; - q1=ex[11]; - p2=ell[11+lskip1]; - p3=ell[11+lskip2]; - p4=ell[11+lskip3]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - Z21 += p2 * q1; - Z31 += p3 * q1; - Z41 += p4 * q1; - /* advance pointers */ - ell += 12; - ex += 12; - /* end of inner loop */ - } - /* compute left-over iterations */ - j += 12; - for (; j > 0; j--) { - /* load p and q values */ - p1=ell[0]; - q1=ex[0]; - p2=ell[lskip1]; - p3=ell[lskip2]; - p4=ell[lskip3]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - Z21 += p2 * q1; - Z31 += p3 * q1; - Z41 += p4 * q1; - /* advance pointers */ - ell += 1; - ex += 1; - } - /* finish computing the X(i) block */ - Z11 = ex[0] - Z11; - ex[0] = Z11; - p1 = ell[lskip1]; - Z21 = ex[1] - Z21 - p1*Z11; - ex[1] = Z21; - p1 = ell[lskip2]; - p2 = ell[1+lskip2]; - Z31 = ex[2] - Z31 - p1*Z11 - p2*Z21; - ex[2] = Z31; - p1 = ell[lskip3]; - p2 = ell[1+lskip3]; - p3 = ell[2+lskip3]; - Z41 = ex[3] - Z41 - p1*Z11 - p2*Z21 - p3*Z31; - ex[3] = Z41; - /* end of outer loop */ - } - /* compute rows at end that are not a multiple of block size */ - for (; i < n; i++) { - /* compute all 1 x 1 block of X, from rows i..i+1-1 */ - /* set the Z matrix to 0 */ - Z11=0; - ell = L + i*lskip1; - ex = B; - /* the inner loop that computes outer products and adds them to Z */ - for (j=i-12; j >= 0; j -= 12) { - /* load p and q values */ - p1=ell[0]; - q1=ex[0]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - /* load p and q values */ - p1=ell[1]; - q1=ex[1]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - /* load p and q values */ - p1=ell[2]; - q1=ex[2]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - /* load p and q values */ - p1=ell[3]; - q1=ex[3]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - /* load p and q values */ - p1=ell[4]; - q1=ex[4]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - /* load p and q values */ - p1=ell[5]; - q1=ex[5]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - /* load p and q values */ - p1=ell[6]; - q1=ex[6]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - /* load p and q values */ - p1=ell[7]; - q1=ex[7]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - /* load p and q values */ - p1=ell[8]; - q1=ex[8]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - /* load p and q values */ - p1=ell[9]; - q1=ex[9]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - /* load p and q values */ - p1=ell[10]; - q1=ex[10]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - /* load p and q values */ - p1=ell[11]; - q1=ex[11]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - /* advance pointers */ - ell += 12; - ex += 12; - /* end of inner loop */ - } - /* compute left-over iterations */ - j += 12; - for (; j > 0; j--) { - /* load p and q values */ - p1=ell[0]; - q1=ex[0]; - /* compute outer product and add it to the Z matrix */ - Z11 += p1 * q1; - /* advance pointers */ - ell += 1; - ex += 1; - } - /* finish computing the X(i) block */ - Z11 = ex[0] - Z11; - ex[0] = Z11; - } -} - -/* solve L^T * x=b, with b containing 1 right hand side. - * L is an n*n lower triangular matrix with ones on the diagonal. - * L is stored by rows and its leading dimension is lskip. - * b is an n*1 matrix that contains the right hand side. - * b is overwritten with x. - * this processes blocks of 4. - */ - -void btSolveL1T (const btScalar *L, btScalar *B, int n, int lskip1) -{ - /* declare variables - Z matrix, p and q vectors, etc */ - btScalar Z11,m11,Z21,m21,Z31,m31,Z41,m41,p1,q1,p2,p3,p4,*ex; - const btScalar *ell; - int lskip2,i,j; -// int lskip3; - /* special handling for L and B because we're solving L1 *transpose* */ - L = L + (n-1)*(lskip1+1); - B = B + n-1; - lskip1 = -lskip1; - /* compute lskip values */ - lskip2 = 2*lskip1; - //lskip3 = 3*lskip1; - /* compute all 4 x 1 blocks of X */ - for (i=0; i <= n-4; i+=4) { - /* compute all 4 x 1 block of X, from rows i..i+4-1 */ - /* set the Z matrix to 0 */ - Z11=0; - Z21=0; - Z31=0; - Z41=0; - ell = L - i; - ex = B; - /* the inner loop that computes outer products and adds them to Z */ - for (j=i-4; j >= 0; j -= 4) { - /* load p and q values */ - p1=ell[0]; - q1=ex[0]; - p2=ell[-1]; - p3=ell[-2]; - p4=ell[-3]; - /* compute outer product and add it to the Z matrix */ - m11 = p1 * q1; - m21 = p2 * q1; - m31 = p3 * q1; - m41 = p4 * q1; - ell += lskip1; - Z11 += m11; - Z21 += m21; - Z31 += m31; - Z41 += m41; - /* load p and q values */ - p1=ell[0]; - q1=ex[-1]; - p2=ell[-1]; - p3=ell[-2]; - p4=ell[-3]; - /* compute outer product and add it to the Z matrix */ - m11 = p1 * q1; - m21 = p2 * q1; - m31 = p3 * q1; - m41 = p4 * q1; - ell += lskip1; - Z11 += m11; - Z21 += m21; - Z31 += m31; - Z41 += m41; - /* load p and q values */ - p1=ell[0]; - q1=ex[-2]; - p2=ell[-1]; - p3=ell[-2]; - p4=ell[-3]; - /* compute outer product and add it to the Z matrix */ - m11 = p1 * q1; - m21 = p2 * q1; - m31 = p3 * q1; - m41 = p4 * q1; - ell += lskip1; - Z11 += m11; - Z21 += m21; - Z31 += m31; - Z41 += m41; - /* load p and q values */ - p1=ell[0]; - q1=ex[-3]; - p2=ell[-1]; - p3=ell[-2]; - p4=ell[-3]; - /* compute outer product and add it to the Z matrix */ - m11 = p1 * q1; - m21 = p2 * q1; - m31 = p3 * q1; - m41 = p4 * q1; - ell += lskip1; - ex -= 4; - Z11 += m11; - Z21 += m21; - Z31 += m31; - Z41 += m41; - /* end of inner loop */ - } - /* compute left-over iterations */ - j += 4; - for (; j > 0; j--) { - /* load p and q values */ - p1=ell[0]; - q1=ex[0]; - p2=ell[-1]; - p3=ell[-2]; - p4=ell[-3]; - /* compute outer product and add it to the Z matrix */ - m11 = p1 * q1; - m21 = p2 * q1; - m31 = p3 * q1; - m41 = p4 * q1; - ell += lskip1; - ex -= 1; - Z11 += m11; - Z21 += m21; - Z31 += m31; - Z41 += m41; - } - /* finish computing the X(i) block */ - Z11 = ex[0] - Z11; - ex[0] = Z11; - p1 = ell[-1]; - Z21 = ex[-1] - Z21 - p1*Z11; - ex[-1] = Z21; - p1 = ell[-2]; - p2 = ell[-2+lskip1]; - Z31 = ex[-2] - Z31 - p1*Z11 - p2*Z21; - ex[-2] = Z31; - p1 = ell[-3]; - p2 = ell[-3+lskip1]; - p3 = ell[-3+lskip2]; - Z41 = ex[-3] - Z41 - p1*Z11 - p2*Z21 - p3*Z31; - ex[-3] = Z41; - /* end of outer loop */ - } - /* compute rows at end that are not a multiple of block size */ - for (; i < n; i++) { - /* compute all 1 x 1 block of X, from rows i..i+1-1 */ - /* set the Z matrix to 0 */ - Z11=0; - ell = L - i; - ex = B; - /* the inner loop that computes outer products and adds them to Z */ - for (j=i-4; j >= 0; j -= 4) { - /* load p and q values */ - p1=ell[0]; - q1=ex[0]; - /* compute outer product and add it to the Z matrix */ - m11 = p1 * q1; - ell += lskip1; - Z11 += m11; - /* load p and q values */ - p1=ell[0]; - q1=ex[-1]; - /* compute outer product and add it to the Z matrix */ - m11 = p1 * q1; - ell += lskip1; - Z11 += m11; - /* load p and q values */ - p1=ell[0]; - q1=ex[-2]; - /* compute outer product and add it to the Z matrix */ - m11 = p1 * q1; - ell += lskip1; - Z11 += m11; - /* load p and q values */ - p1=ell[0]; - q1=ex[-3]; - /* compute outer product and add it to the Z matrix */ - m11 = p1 * q1; - ell += lskip1; - ex -= 4; - Z11 += m11; - /* end of inner loop */ - } - /* compute left-over iterations */ - j += 4; - for (; j > 0; j--) { - /* load p and q values */ - p1=ell[0]; - q1=ex[0]; - /* compute outer product and add it to the Z matrix */ - m11 = p1 * q1; - ell += lskip1; - ex -= 1; - Z11 += m11; - } - /* finish computing the X(i) block */ - Z11 = ex[0] - Z11; - ex[0] = Z11; - } -} - - - -void btVectorScale (btScalar *a, const btScalar *d, int n) -{ - btAssert (a && d && n >= 0); - for (int i=0; i<n; i++) { - a[i] *= d[i]; - } -} - -void btSolveLDLT (const btScalar *L, const btScalar *d, btScalar *b, int n, int nskip) -{ - btAssert (L && d && b && n > 0 && nskip >= n); - btSolveL1 (L,b,n,nskip); - btVectorScale (b,d,n); - btSolveL1T (L,b,n,nskip); -} - - - -//*************************************************************************** - -// swap row/column i1 with i2 in the n*n matrix A. the leading dimension of -// A is nskip. this only references and swaps the lower triangle. -// if `do_fast_row_swaps' is nonzero and row pointers are being used, then -// rows will be swapped by exchanging row pointers. otherwise the data will -// be copied. - -static void btSwapRowsAndCols (BTATYPE A, int n, int i1, int i2, int nskip, - int do_fast_row_swaps) -{ - btAssert (A && n > 0 && i1 >= 0 && i2 >= 0 && i1 < n && i2 < n && - nskip >= n && i1 < i2); - -# ifdef BTROWPTRS - btScalar *A_i1 = A[i1]; - btScalar *A_i2 = A[i2]; - for (int i=i1+1; i<i2; ++i) { - btScalar *A_i_i1 = A[i] + i1; - A_i1[i] = *A_i_i1; - *A_i_i1 = A_i2[i]; - } - A_i1[i2] = A_i1[i1]; - A_i1[i1] = A_i2[i1]; - A_i2[i1] = A_i2[i2]; - // swap rows, by swapping row pointers - if (do_fast_row_swaps) { - A[i1] = A_i2; - A[i2] = A_i1; - } - else { - // Only swap till i2 column to match A plain storage variant. - for (int k = 0; k <= i2; ++k) { - btScalar tmp = A_i1[k]; - A_i1[k] = A_i2[k]; - A_i2[k] = tmp; - } - } - // swap columns the hard way - for (int j=i2+1; j<n; ++j) { - btScalar *A_j = A[j]; - btScalar tmp = A_j[i1]; - A_j[i1] = A_j[i2]; - A_j[i2] = tmp; - } -# else - btScalar *A_i1 = A+i1*nskip; - btScalar *A_i2 = A+i2*nskip; - for (int k = 0; k < i1; ++k) { - btScalar tmp = A_i1[k]; - A_i1[k] = A_i2[k]; - A_i2[k] = tmp; - } - btScalar *A_i = A_i1 + nskip; - for (int i=i1+1; i<i2; A_i+=nskip, ++i) { - btScalar tmp = A_i2[i]; - A_i2[i] = A_i[i1]; - A_i[i1] = tmp; - } - { - btScalar tmp = A_i1[i1]; - A_i1[i1] = A_i2[i2]; - A_i2[i2] = tmp; - } - btScalar *A_j = A_i2 + nskip; - for (int j=i2+1; j<n; A_j+=nskip, ++j) { - btScalar tmp = A_j[i1]; - A_j[i1] = A_j[i2]; - A_j[i2] = tmp; - } -# endif -} - - -// swap two indexes in the n*n LCP problem. i1 must be <= i2. - -static void btSwapProblem (BTATYPE A, btScalar *x, btScalar *b, btScalar *w, btScalar *lo, - btScalar *hi, int *p, bool *state, int *findex, - int n, int i1, int i2, int nskip, - int do_fast_row_swaps) -{ - btScalar tmpr; - int tmpi; - bool tmpb; - btAssert (n>0 && i1 >=0 && i2 >= 0 && i1 < n && i2 < n && nskip >= n && i1 <= i2); - if (i1==i2) return; - - btSwapRowsAndCols (A,n,i1,i2,nskip,do_fast_row_swaps); - - tmpr = x[i1]; - x[i1] = x[i2]; - x[i2] = tmpr; - - tmpr = b[i1]; - b[i1] = b[i2]; - b[i2] = tmpr; - - tmpr = w[i1]; - w[i1] = w[i2]; - w[i2] = tmpr; - - tmpr = lo[i1]; - lo[i1] = lo[i2]; - lo[i2] = tmpr; - - tmpr = hi[i1]; - hi[i1] = hi[i2]; - hi[i2] = tmpr; - - tmpi = p[i1]; - p[i1] = p[i2]; - p[i2] = tmpi; - - tmpb = state[i1]; - state[i1] = state[i2]; - state[i2] = tmpb; - - if (findex) { - tmpi = findex[i1]; - findex[i1] = findex[i2]; - findex[i2] = tmpi; - } -} - - - - -//*************************************************************************** -// btLCP manipulator object. this represents an n*n LCP problem. -// -// two index sets C and N are kept. each set holds a subset of -// the variable indexes 0..n-1. an index can only be in one set. -// initially both sets are empty. -// -// the index set C is special: solutions to A(C,C)\A(C,i) can be generated. - -//*************************************************************************** -// fast implementation of btLCP. see the above definition of btLCP for -// interface comments. -// -// `p' records the permutation of A,x,b,w,etc. p is initially 1:n and is -// permuted as the other vectors/matrices are permuted. -// -// A,x,b,w,lo,hi,state,findex,p,c are permuted such that sets C,N have -// contiguous indexes. the don't-care indexes follow N. -// -// an L*D*L' factorization is maintained of A(C,C), and whenever indexes are -// added or removed from the set C the factorization is updated. -// thus L*D*L'=A[C,C], i.e. a permuted top left nC*nC submatrix of A. -// the leading dimension of the matrix L is always `nskip'. -// -// at the start there may be other indexes that are unbounded but are not -// included in `nub'. btLCP will permute the matrix so that absolutely all -// unbounded vectors are at the start. thus there may be some initial -// permutation. -// -// the algorithms here assume certain patterns, particularly with respect to -// index transfer. - -#ifdef btLCP_FAST - -struct btLCP -{ - const int m_n; - const int m_nskip; - int m_nub; - int m_nC, m_nN; // size of each index set - BTATYPE const m_A; // A rows - btScalar *const m_x, * const m_b, *const m_w, *const m_lo,* const m_hi; // permuted LCP problem data - btScalar *const m_L, *const m_d; // L*D*L' factorization of set C - btScalar *const m_Dell, *const m_ell, *const m_tmp; - bool *const m_state; - int *const m_findex, *const m_p, *const m_C; - - btLCP (int _n, int _nskip, int _nub, btScalar *_Adata, btScalar *_x, btScalar *_b, btScalar *_w, - btScalar *_lo, btScalar *_hi, btScalar *l, btScalar *_d, - btScalar *_Dell, btScalar *_ell, btScalar *_tmp, - bool *_state, int *_findex, int *p, int *c, btScalar **Arows); - int getNub() const { return m_nub; } - void transfer_i_to_C (int i); - void transfer_i_to_N (int i) { m_nN++; } // because we can assume C and N span 1:i-1 - void transfer_i_from_N_to_C (int i); - void transfer_i_from_C_to_N (int i, btAlignedObjectArray<btScalar>& scratch); - int numC() const { return m_nC; } - int numN() const { return m_nN; } - int indexC (int i) const { return i; } - int indexN (int i) const { return i+m_nC; } - btScalar Aii (int i) const { return BTAROW(i)[i]; } - btScalar AiC_times_qC (int i, btScalar *q) const { return btLargeDot (BTAROW(i), q, m_nC); } - btScalar AiN_times_qN (int i, btScalar *q) const { return btLargeDot (BTAROW(i)+m_nC, q+m_nC, m_nN); } - void pN_equals_ANC_times_qC (btScalar *p, btScalar *q); - void pN_plusequals_ANi (btScalar *p, int i, int sign=1); - void pC_plusequals_s_times_qC (btScalar *p, btScalar s, btScalar *q); - void pN_plusequals_s_times_qN (btScalar *p, btScalar s, btScalar *q); - void solve1 (btScalar *a, int i, int dir=1, int only_transfer=0); - void unpermute(); -}; - - -btLCP::btLCP (int _n, int _nskip, int _nub, btScalar *_Adata, btScalar *_x, btScalar *_b, btScalar *_w, - btScalar *_lo, btScalar *_hi, btScalar *l, btScalar *_d, - btScalar *_Dell, btScalar *_ell, btScalar *_tmp, - bool *_state, int *_findex, int *p, int *c, btScalar **Arows): - m_n(_n), m_nskip(_nskip), m_nub(_nub), m_nC(0), m_nN(0), -# ifdef BTROWPTRS - m_A(Arows), -#else - m_A(_Adata), -#endif - m_x(_x), m_b(_b), m_w(_w), m_lo(_lo), m_hi(_hi), - m_L(l), m_d(_d), m_Dell(_Dell), m_ell(_ell), m_tmp(_tmp), - m_state(_state), m_findex(_findex), m_p(p), m_C(c) -{ - { - btSetZero (m_x,m_n); - } - - { -# ifdef BTROWPTRS - // make matrix row pointers - btScalar *aptr = _Adata; - BTATYPE A = m_A; - const int n = m_n, nskip = m_nskip; - for (int k=0; k<n; aptr+=nskip, ++k) A[k] = aptr; -# endif - } - - { - int *p = m_p; - const int n = m_n; - for (int k=0; k<n; ++k) p[k]=k; // initially unpermuted - } - - /* - // for testing, we can do some random swaps in the area i > nub - { - const int n = m_n; - const int nub = m_nub; - if (nub < n) { - for (int k=0; k<100; k++) { - int i1,i2; - do { - i1 = dRandInt(n-nub)+nub; - i2 = dRandInt(n-nub)+nub; - } - while (i1 > i2); - //printf ("--> %d %d\n",i1,i2); - btSwapProblem (m_A,m_x,m_b,m_w,m_lo,m_hi,m_p,m_state,m_findex,n,i1,i2,m_nskip,0); - } - } - */ - - // permute the problem so that *all* the unbounded variables are at the - // start, i.e. look for unbounded variables not included in `nub'. we can - // potentially push up `nub' this way and get a bigger initial factorization. - // note that when we swap rows/cols here we must not just swap row pointers, - // as the initial factorization relies on the data being all in one chunk. - // variables that have findex >= 0 are *not* considered to be unbounded even - // if lo=-inf and hi=inf - this is because these limits may change during the - // solution process. - - { - int *findex = m_findex; - btScalar *lo = m_lo, *hi = m_hi; - const int n = m_n; - for (int k = m_nub; k<n; ++k) { - if (findex && findex[k] >= 0) continue; - if (lo[k]==-BT_INFINITY && hi[k]==BT_INFINITY) { - btSwapProblem (m_A,m_x,m_b,m_w,lo,hi,m_p,m_state,findex,n,m_nub,k,m_nskip,0); - m_nub++; - } - } - } - - // if there are unbounded variables at the start, factorize A up to that - // point and solve for x. this puts all indexes 0..nub-1 into C. - if (m_nub > 0) { - const int nub = m_nub; - { - btScalar *Lrow = m_L; - const int nskip = m_nskip; - for (int j=0; j<nub; Lrow+=nskip, ++j) memcpy(Lrow,BTAROW(j),(j+1)*sizeof(btScalar)); - } - btFactorLDLT (m_L,m_d,nub,m_nskip); - memcpy (m_x,m_b,nub*sizeof(btScalar)); - btSolveLDLT (m_L,m_d,m_x,nub,m_nskip); - btSetZero (m_w,nub); - { - int *C = m_C; - for (int k=0; k<nub; ++k) C[k] = k; - } - m_nC = nub; - } - - // permute the indexes > nub such that all findex variables are at the end - if (m_findex) { - const int nub = m_nub; - int *findex = m_findex; - int num_at_end = 0; - for (int k=m_n-1; k >= nub; k--) { - if (findex[k] >= 0) { - btSwapProblem (m_A,m_x,m_b,m_w,m_lo,m_hi,m_p,m_state,findex,m_n,k,m_n-1-num_at_end,m_nskip,1); - num_at_end++; - } - } - } - - // print info about indexes - /* - { - const int n = m_n; - const int nub = m_nub; - for (int k=0; k<n; k++) { - if (k<nub) printf ("C"); - else if (m_lo[k]==-BT_INFINITY && m_hi[k]==BT_INFINITY) printf ("c"); - else printf ("."); - } - printf ("\n"); - } - */ -} - - -void btLCP::transfer_i_to_C (int i) -{ - { - if (m_nC > 0) { - // ell,Dell were computed by solve1(). note, ell = D \ L1solve (L,A(i,C)) - { - const int nC = m_nC; - btScalar *const Ltgt = m_L + nC*m_nskip, *ell = m_ell; - for (int j=0; j<nC; ++j) Ltgt[j] = ell[j]; - } - const int nC = m_nC; - m_d[nC] = btRecip (BTAROW(i)[i] - btLargeDot(m_ell,m_Dell,nC)); - } - else { - m_d[0] = btRecip (BTAROW(i)[i]); - } - - btSwapProblem (m_A,m_x,m_b,m_w,m_lo,m_hi,m_p,m_state,m_findex,m_n,m_nC,i,m_nskip,1); - - const int nC = m_nC; - m_C[nC] = nC; - m_nC = nC + 1; // nC value is outdated after this line - } - -} - - -void btLCP::transfer_i_from_N_to_C (int i) -{ - { - if (m_nC > 0) { - { - btScalar *const aptr = BTAROW(i); - btScalar *Dell = m_Dell; - const int *C = m_C; -# ifdef BTNUB_OPTIMIZATIONS - // if nub>0, initial part of aptr unpermuted - const int nub = m_nub; - int j=0; - for ( ; j<nub; ++j) Dell[j] = aptr[j]; - const int nC = m_nC; - for ( ; j<nC; ++j) Dell[j] = aptr[C[j]]; -# else - const int nC = m_nC; - for (int j=0; j<nC; ++j) Dell[j] = aptr[C[j]]; -# endif - } - btSolveL1 (m_L,m_Dell,m_nC,m_nskip); - { - const int nC = m_nC; - btScalar *const Ltgt = m_L + nC*m_nskip; - btScalar *ell = m_ell, *Dell = m_Dell, *d = m_d; - for (int j=0; j<nC; ++j) Ltgt[j] = ell[j] = Dell[j] * d[j]; - } - const int nC = m_nC; - m_d[nC] = btRecip (BTAROW(i)[i] - btLargeDot(m_ell,m_Dell,nC)); - } - else { - m_d[0] = btRecip (BTAROW(i)[i]); - } - - btSwapProblem (m_A,m_x,m_b,m_w,m_lo,m_hi,m_p,m_state,m_findex,m_n,m_nC,i,m_nskip,1); - - const int nC = m_nC; - m_C[nC] = nC; - m_nN--; - m_nC = nC + 1; // nC value is outdated after this line - } - - // @@@ TO DO LATER - // if we just finish here then we'll go back and re-solve for - // delta_x. but actually we can be more efficient and incrementally - // update delta_x here. but if we do this, we wont have ell and Dell - // to use in updating the factorization later. - -} - -void btRemoveRowCol (btScalar *A, int n, int nskip, int r) -{ - btAssert(A && n > 0 && nskip >= n && r >= 0 && r < n); - if (r >= n-1) return; - if (r > 0) { - { - const size_t move_size = (n-r-1)*sizeof(btScalar); - btScalar *Adst = A + r; - for (int i=0; i<r; Adst+=nskip,++i) { - btScalar *Asrc = Adst + 1; - memmove (Adst,Asrc,move_size); - } - } - { - const size_t cpy_size = r*sizeof(btScalar); - btScalar *Adst = A + r * nskip; - for (int i=r; i<(n-1); ++i) { - btScalar *Asrc = Adst + nskip; - memcpy (Adst,Asrc,cpy_size); - Adst = Asrc; - } - } - } - { - const size_t cpy_size = (n-r-1)*sizeof(btScalar); - btScalar *Adst = A + r * (nskip + 1); - for (int i=r; i<(n-1); ++i) { - btScalar *Asrc = Adst + (nskip + 1); - memcpy (Adst,Asrc,cpy_size); - Adst = Asrc - 1; - } - } -} - - - - -void btLDLTAddTL (btScalar *L, btScalar *d, const btScalar *a, int n, int nskip, btAlignedObjectArray<btScalar>& scratch) -{ - btAssert (L && d && a && n > 0 && nskip >= n); - - if (n < 2) return; - scratch.resize(2*nskip); - btScalar *W1 = &scratch[0]; - - btScalar *W2 = W1 + nskip; - - W1[0] = btScalar(0.0); - W2[0] = btScalar(0.0); - for (int j=1; j<n; ++j) { - W1[j] = W2[j] = (btScalar) (a[j] * SIMDSQRT12); - } - btScalar W11 = (btScalar) ((btScalar(0.5)*a[0]+1)*SIMDSQRT12); - btScalar W21 = (btScalar) ((btScalar(0.5)*a[0]-1)*SIMDSQRT12); - - btScalar alpha1 = btScalar(1.0); - btScalar alpha2 = btScalar(1.0); - - { - btScalar dee = d[0]; - btScalar alphanew = alpha1 + (W11*W11)*dee; - btAssert(alphanew != btScalar(0.0)); - dee /= alphanew; - btScalar gamma1 = W11 * dee; - dee *= alpha1; - alpha1 = alphanew; - alphanew = alpha2 - (W21*W21)*dee; - dee /= alphanew; - //btScalar gamma2 = W21 * dee; - alpha2 = alphanew; - btScalar k1 = btScalar(1.0) - W21*gamma1; - btScalar k2 = W21*gamma1*W11 - W21; - btScalar *ll = L + nskip; - for (int p=1; p<n; ll+=nskip, ++p) { - btScalar Wp = W1[p]; - btScalar ell = *ll; - W1[p] = Wp - W11*ell; - W2[p] = k1*Wp + k2*ell; - } - } - - btScalar *ll = L + (nskip + 1); - for (int j=1; j<n; ll+=nskip+1, ++j) { - btScalar k1 = W1[j]; - btScalar k2 = W2[j]; - - btScalar dee = d[j]; - btScalar alphanew = alpha1 + (k1*k1)*dee; - btAssert(alphanew != btScalar(0.0)); - dee /= alphanew; - btScalar gamma1 = k1 * dee; - dee *= alpha1; - alpha1 = alphanew; - alphanew = alpha2 - (k2*k2)*dee; - dee /= alphanew; - btScalar gamma2 = k2 * dee; - dee *= alpha2; - d[j] = dee; - alpha2 = alphanew; - - btScalar *l = ll + nskip; - for (int p=j+1; p<n; l+=nskip, ++p) { - btScalar ell = *l; - btScalar Wp = W1[p] - k1 * ell; - ell += gamma1 * Wp; - W1[p] = Wp; - Wp = W2[p] - k2 * ell; - ell -= gamma2 * Wp; - W2[p] = Wp; - *l = ell; - } - } -} - - -#define _BTGETA(i,j) (A[i][j]) -//#define _GETA(i,j) (A[(i)*nskip+(j)]) -#define BTGETA(i,j) ((i > j) ? _BTGETA(i,j) : _BTGETA(j,i)) - -inline size_t btEstimateLDLTAddTLTmpbufSize(int nskip) -{ - return nskip * 2 * sizeof(btScalar); -} - - -void btLDLTRemove (btScalar **A, const int *p, btScalar *L, btScalar *d, - int n1, int n2, int r, int nskip, btAlignedObjectArray<btScalar>& scratch) -{ - btAssert(A && p && L && d && n1 > 0 && n2 > 0 && r >= 0 && r < n2 && - n1 >= n2 && nskip >= n1); - #ifdef BT_DEBUG - for (int i=0; i<n2; ++i) - btAssert(p[i] >= 0 && p[i] < n1); - #endif - - if (r==n2-1) { - return; // deleting last row/col is easy - } - else { - size_t LDLTAddTL_size = btEstimateLDLTAddTLTmpbufSize(nskip); - btAssert(LDLTAddTL_size % sizeof(btScalar) == 0); - scratch.resize(nskip * 2+n2); - btScalar *tmp = &scratch[0]; - if (r==0) { - btScalar *a = (btScalar *)((char *)tmp + LDLTAddTL_size); - const int p_0 = p[0]; - for (int i=0; i<n2; ++i) { - a[i] = -BTGETA(p[i],p_0); - } - a[0] += btScalar(1.0); - btLDLTAddTL (L,d,a,n2,nskip,scratch); - } - else { - btScalar *t = (btScalar *)((char *)tmp + LDLTAddTL_size); - { - btScalar *Lcurr = L + r*nskip; - for (int i=0; i<r; ++Lcurr, ++i) { - btAssert(d[i] != btScalar(0.0)); - t[i] = *Lcurr / d[i]; - } - } - btScalar *a = t + r; - { - btScalar *Lcurr = L + r*nskip; - const int *pp_r = p + r, p_r = *pp_r; - const int n2_minus_r = n2-r; - for (int i=0; i<n2_minus_r; Lcurr+=nskip,++i) { - a[i] = btLargeDot(Lcurr,t,r) - BTGETA(pp_r[i],p_r); - } - } - a[0] += btScalar(1.0); - btLDLTAddTL (L + r*nskip+r, d+r, a, n2-r, nskip, scratch); - } - } - - // snip out row/column r from L and d - btRemoveRowCol (L,n2,nskip,r); - if (r < (n2-1)) memmove (d+r,d+r+1,(n2-r-1)*sizeof(btScalar)); -} - - -void btLCP::transfer_i_from_C_to_N (int i, btAlignedObjectArray<btScalar>& scratch) -{ - { - int *C = m_C; - // remove a row/column from the factorization, and adjust the - // indexes (black magic!) - int last_idx = -1; - const int nC = m_nC; - int j = 0; - for ( ; j<nC; ++j) { - if (C[j]==nC-1) { - last_idx = j; - } - if (C[j]==i) { - btLDLTRemove (m_A,C,m_L,m_d,m_n,nC,j,m_nskip,scratch); - int k; - if (last_idx == -1) { - for (k=j+1 ; k<nC; ++k) { - if (C[k]==nC-1) { - break; - } - } - btAssert (k < nC); - } - else { - k = last_idx; - } - C[k] = C[j]; - if (j < (nC-1)) memmove (C+j,C+j+1,(nC-j-1)*sizeof(int)); - break; - } - } - btAssert (j < nC); - - btSwapProblem (m_A,m_x,m_b,m_w,m_lo,m_hi,m_p,m_state,m_findex,m_n,i,nC-1,m_nskip,1); - - m_nN++; - m_nC = nC - 1; // nC value is outdated after this line - } - -} - - -void btLCP::pN_equals_ANC_times_qC (btScalar *p, btScalar *q) -{ - // we could try to make this matrix-vector multiplication faster using - // outer product matrix tricks, e.g. with the dMultidotX() functions. - // but i tried it and it actually made things slower on random 100x100 - // problems because of the overhead involved. so we'll stick with the - // simple method for now. - const int nC = m_nC; - btScalar *ptgt = p + nC; - const int nN = m_nN; - for (int i=0; i<nN; ++i) { - ptgt[i] = btLargeDot (BTAROW(i+nC),q,nC); - } -} - - -void btLCP::pN_plusequals_ANi (btScalar *p, int i, int sign) -{ - const int nC = m_nC; - btScalar *aptr = BTAROW(i) + nC; - btScalar *ptgt = p + nC; - if (sign > 0) { - const int nN = m_nN; - for (int j=0; j<nN; ++j) ptgt[j] += aptr[j]; - } - else { - const int nN = m_nN; - for (int j=0; j<nN; ++j) ptgt[j] -= aptr[j]; - } -} - -void btLCP::pC_plusequals_s_times_qC (btScalar *p, btScalar s, btScalar *q) -{ - const int nC = m_nC; - for (int i=0; i<nC; ++i) { - p[i] += s*q[i]; - } -} - -void btLCP::pN_plusequals_s_times_qN (btScalar *p, btScalar s, btScalar *q) -{ - const int nC = m_nC; - btScalar *ptgt = p + nC, *qsrc = q + nC; - const int nN = m_nN; - for (int i=0; i<nN; ++i) { - ptgt[i] += s*qsrc[i]; - } -} - -void btLCP::solve1 (btScalar *a, int i, int dir, int only_transfer) -{ - // the `Dell' and `ell' that are computed here are saved. if index i is - // later added to the factorization then they can be reused. - // - // @@@ question: do we need to solve for entire delta_x??? yes, but - // only if an x goes below 0 during the step. - - if (m_nC > 0) { - { - btScalar *Dell = m_Dell; - int *C = m_C; - btScalar *aptr = BTAROW(i); -# ifdef BTNUB_OPTIMIZATIONS - // if nub>0, initial part of aptr[] is guaranteed unpermuted - const int nub = m_nub; - int j=0; - for ( ; j<nub; ++j) Dell[j] = aptr[j]; - const int nC = m_nC; - for ( ; j<nC; ++j) Dell[j] = aptr[C[j]]; -# else - const int nC = m_nC; - for (int j=0; j<nC; ++j) Dell[j] = aptr[C[j]]; -# endif - } - btSolveL1 (m_L,m_Dell,m_nC,m_nskip); - { - btScalar *ell = m_ell, *Dell = m_Dell, *d = m_d; - const int nC = m_nC; - for (int j=0; j<nC; ++j) ell[j] = Dell[j] * d[j]; - } - - if (!only_transfer) { - btScalar *tmp = m_tmp, *ell = m_ell; - { - const int nC = m_nC; - for (int j=0; j<nC; ++j) tmp[j] = ell[j]; - } - btSolveL1T (m_L,tmp,m_nC,m_nskip); - if (dir > 0) { - int *C = m_C; - btScalar *tmp = m_tmp; - const int nC = m_nC; - for (int j=0; j<nC; ++j) a[C[j]] = -tmp[j]; - } else { - int *C = m_C; - btScalar *tmp = m_tmp; - const int nC = m_nC; - for (int j=0; j<nC; ++j) a[C[j]] = tmp[j]; - } - } - } -} - - -void btLCP::unpermute() -{ - // now we have to un-permute x and w - { - memcpy (m_tmp,m_x,m_n*sizeof(btScalar)); - btScalar *x = m_x, *tmp = m_tmp; - const int *p = m_p; - const int n = m_n; - for (int j=0; j<n; ++j) x[p[j]] = tmp[j]; - } - { - memcpy (m_tmp,m_w,m_n*sizeof(btScalar)); - btScalar *w = m_w, *tmp = m_tmp; - const int *p = m_p; - const int n = m_n; - for (int j=0; j<n; ++j) w[p[j]] = tmp[j]; - } -} - -#endif // btLCP_FAST - - -//*************************************************************************** -// an optimized Dantzig LCP driver routine for the lo-hi LCP problem. - -bool btSolveDantzigLCP (int n, btScalar *A, btScalar *x, btScalar *b, - btScalar* outer_w, int nub, btScalar *lo, btScalar *hi, int *findex, btDantzigScratchMemory& scratchMem) -{ - s_error = false; - -// printf("btSolveDantzigLCP n=%d\n",n); - btAssert (n>0 && A && x && b && lo && hi && nub >= 0 && nub <= n); - btAssert(outer_w); - -#ifdef BT_DEBUG - { - // check restrictions on lo and hi - for (int k=0; k<n; ++k) - btAssert (lo[k] <= 0 && hi[k] >= 0); - } -# endif - - - // if all the variables are unbounded then we can just factor, solve, - // and return - if (nub >= n) - { - - - int nskip = (n); - btFactorLDLT (A, outer_w, n, nskip); - btSolveLDLT (A, outer_w, b, n, nskip); - memcpy (x, b, n*sizeof(btScalar)); - - return !s_error; - } - - const int nskip = (n); - scratchMem.L.resize(n*nskip); - - scratchMem.d.resize(n); - - btScalar *w = outer_w; - scratchMem.delta_w.resize(n); - scratchMem.delta_x.resize(n); - scratchMem.Dell.resize(n); - scratchMem.ell.resize(n); - scratchMem.Arows.resize(n); - scratchMem.p.resize(n); - scratchMem.C.resize(n); - - // for i in N, state[i] is 0 if x(i)==lo(i) or 1 if x(i)==hi(i) - scratchMem.state.resize(n); - - - // create LCP object. note that tmp is set to delta_w to save space, this - // optimization relies on knowledge of how tmp is used, so be careful! - btLCP lcp(n,nskip,nub,A,x,b,w,lo,hi,&scratchMem.L[0],&scratchMem.d[0],&scratchMem.Dell[0],&scratchMem.ell[0],&scratchMem.delta_w[0],&scratchMem.state[0],findex,&scratchMem.p[0],&scratchMem.C[0],&scratchMem.Arows[0]); - int adj_nub = lcp.getNub(); - - // loop over all indexes adj_nub..n-1. for index i, if x(i),w(i) satisfy the - // LCP conditions then i is added to the appropriate index set. otherwise - // x(i),w(i) is driven either +ve or -ve to force it to the valid region. - // as we drive x(i), x(C) is also adjusted to keep w(C) at zero. - // while driving x(i) we maintain the LCP conditions on the other variables - // 0..i-1. we do this by watching out for other x(i),w(i) values going - // outside the valid region, and then switching them between index sets - // when that happens. - - bool hit_first_friction_index = false; - for (int i=adj_nub; i<n; ++i) - { - s_error = false; - // the index i is the driving index and indexes i+1..n-1 are "dont care", - // i.e. when we make changes to the system those x's will be zero and we - // don't care what happens to those w's. in other words, we only consider - // an (i+1)*(i+1) sub-problem of A*x=b+w. - - // if we've hit the first friction index, we have to compute the lo and - // hi values based on the values of x already computed. we have been - // permuting the indexes, so the values stored in the findex vector are - // no longer valid. thus we have to temporarily unpermute the x vector. - // for the purposes of this computation, 0*infinity = 0 ... so if the - // contact constraint's normal force is 0, there should be no tangential - // force applied. - - if (!hit_first_friction_index && findex && findex[i] >= 0) { - // un-permute x into delta_w, which is not being used at the moment - for (int j=0; j<n; ++j) scratchMem.delta_w[scratchMem.p[j]] = x[j]; - - // set lo and hi values - for (int k=i; k<n; ++k) { - btScalar wfk = scratchMem.delta_w[findex[k]]; - if (wfk == 0) { - hi[k] = 0; - lo[k] = 0; - } - else { - hi[k] = btFabs (hi[k] * wfk); - lo[k] = -hi[k]; - } - } - hit_first_friction_index = true; - } - - // thus far we have not even been computing the w values for indexes - // greater than i, so compute w[i] now. - w[i] = lcp.AiC_times_qC (i,x) + lcp.AiN_times_qN (i,x) - b[i]; - - // if lo=hi=0 (which can happen for tangential friction when normals are - // 0) then the index will be assigned to set N with some state. however, - // set C's line has zero size, so the index will always remain in set N. - // with the "normal" switching logic, if w changed sign then the index - // would have to switch to set C and then back to set N with an inverted - // state. this is pointless, and also computationally expensive. to - // prevent this from happening, we use the rule that indexes with lo=hi=0 - // will never be checked for set changes. this means that the state for - // these indexes may be incorrect, but that doesn't matter. - - // see if x(i),w(i) is in a valid region - if (lo[i]==0 && w[i] >= 0) { - lcp.transfer_i_to_N (i); - scratchMem.state[i] = false; - } - else if (hi[i]==0 && w[i] <= 0) { - lcp.transfer_i_to_N (i); - scratchMem.state[i] = true; - } - else if (w[i]==0) { - // this is a degenerate case. by the time we get to this test we know - // that lo != 0, which means that lo < 0 as lo is not allowed to be +ve, - // and similarly that hi > 0. this means that the line segment - // corresponding to set C is at least finite in extent, and we are on it. - // NOTE: we must call lcp.solve1() before lcp.transfer_i_to_C() - lcp.solve1 (&scratchMem.delta_x[0],i,0,1); - - lcp.transfer_i_to_C (i); - } - else { - // we must push x(i) and w(i) - for (;;) { - int dir; - btScalar dirf; - // find direction to push on x(i) - if (w[i] <= 0) { - dir = 1; - dirf = btScalar(1.0); - } - else { - dir = -1; - dirf = btScalar(-1.0); - } - - // compute: delta_x(C) = -dir*A(C,C)\A(C,i) - lcp.solve1 (&scratchMem.delta_x[0],i,dir); - - // note that delta_x[i] = dirf, but we wont bother to set it - - // compute: delta_w = A*delta_x ... note we only care about - // delta_w(N) and delta_w(i), the rest is ignored - lcp.pN_equals_ANC_times_qC (&scratchMem.delta_w[0],&scratchMem.delta_x[0]); - lcp.pN_plusequals_ANi (&scratchMem.delta_w[0],i,dir); - scratchMem.delta_w[i] = lcp.AiC_times_qC (i,&scratchMem.delta_x[0]) + lcp.Aii(i)*dirf; - - // find largest step we can take (size=s), either to drive x(i),w(i) - // to the valid LCP region or to drive an already-valid variable - // outside the valid region. - - int cmd = 1; // index switching command - int si = 0; // si = index to switch if cmd>3 - btScalar s = -w[i]/scratchMem.delta_w[i]; - if (dir > 0) { - if (hi[i] < BT_INFINITY) { - btScalar s2 = (hi[i]-x[i])*dirf; // was (hi[i]-x[i])/dirf // step to x(i)=hi(i) - if (s2 < s) { - s = s2; - cmd = 3; - } - } - } - else { - if (lo[i] > -BT_INFINITY) { - btScalar s2 = (lo[i]-x[i])*dirf; // was (lo[i]-x[i])/dirf // step to x(i)=lo(i) - if (s2 < s) { - s = s2; - cmd = 2; - } - } - } - - { - const int numN = lcp.numN(); - for (int k=0; k < numN; ++k) { - const int indexN_k = lcp.indexN(k); - if (!scratchMem.state[indexN_k] ? scratchMem.delta_w[indexN_k] < 0 : scratchMem.delta_w[indexN_k] > 0) { - // don't bother checking if lo=hi=0 - if (lo[indexN_k] == 0 && hi[indexN_k] == 0) continue; - btScalar s2 = -w[indexN_k] / scratchMem.delta_w[indexN_k]; - if (s2 < s) { - s = s2; - cmd = 4; - si = indexN_k; - } - } - } - } - - { - const int numC = lcp.numC(); - for (int k=adj_nub; k < numC; ++k) { - const int indexC_k = lcp.indexC(k); - if (scratchMem.delta_x[indexC_k] < 0 && lo[indexC_k] > -BT_INFINITY) { - btScalar s2 = (lo[indexC_k]-x[indexC_k]) / scratchMem.delta_x[indexC_k]; - if (s2 < s) { - s = s2; - cmd = 5; - si = indexC_k; - } - } - if (scratchMem.delta_x[indexC_k] > 0 && hi[indexC_k] < BT_INFINITY) { - btScalar s2 = (hi[indexC_k]-x[indexC_k]) / scratchMem.delta_x[indexC_k]; - if (s2 < s) { - s = s2; - cmd = 6; - si = indexC_k; - } - } - } - } - - //static char* cmdstring[8] = {0,"->C","->NL","->NH","N->C", - // "C->NL","C->NH"}; - //printf ("cmd=%d (%s), si=%d\n",cmd,cmdstring[cmd],(cmd>3) ? si : i); - - // if s <= 0 then we've got a problem. if we just keep going then - // we're going to get stuck in an infinite loop. instead, just cross - // our fingers and exit with the current solution. - if (s <= btScalar(0.0)) - { -// printf("LCP internal error, s <= 0 (s=%.4e)",(double)s); - if (i < n) { - btSetZero (x+i,n-i); - btSetZero (w+i,n-i); - } - s_error = true; - break; - } - - // apply x = x + s * delta_x - lcp.pC_plusequals_s_times_qC (x, s, &scratchMem.delta_x[0]); - x[i] += s * dirf; - - // apply w = w + s * delta_w - lcp.pN_plusequals_s_times_qN (w, s, &scratchMem.delta_w[0]); - w[i] += s * scratchMem.delta_w[i]; - -// void *tmpbuf; - // switch indexes between sets if necessary - switch (cmd) { - case 1: // done - w[i] = 0; - lcp.transfer_i_to_C (i); - break; - case 2: // done - x[i] = lo[i]; - scratchMem.state[i] = false; - lcp.transfer_i_to_N (i); - break; - case 3: // done - x[i] = hi[i]; - scratchMem.state[i] = true; - lcp.transfer_i_to_N (i); - break; - case 4: // keep going - w[si] = 0; - lcp.transfer_i_from_N_to_C (si); - break; - case 5: // keep going - x[si] = lo[si]; - scratchMem.state[si] = false; - lcp.transfer_i_from_C_to_N (si, scratchMem.m_scratch); - break; - case 6: // keep going - x[si] = hi[si]; - scratchMem.state[si] = true; - lcp.transfer_i_from_C_to_N (si, scratchMem.m_scratch); - break; - } - - if (cmd <= 3) break; - } // for (;;) - } // else - - if (s_error) - { - break; - } - } // for (int i=adj_nub; i<n; ++i) - - lcp.unpermute(); - - - return !s_error; -} - diff --git a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btDantzigLCP.h b/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btDantzigLCP.h deleted file mode 100644 index 903832770a..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btDantzigLCP.h +++ /dev/null @@ -1,77 +0,0 @@ -/************************************************************************* - * * - * Open Dynamics Engine, Copyright (C) 2001,2002 Russell L. Smith. * - * All rights reserved. Email: russ@q12.org Web: www.q12.org * - * * - * This library is free software; you can redistribute it and/or * - * modify it under the terms of * - * The BSD-style license that is included with this library in * - * the file LICENSE-BSD.TXT. * - * * - * This library is distributed in the hope that it will be useful, * - * but WITHOUT ANY WARRANTY; without even the implied warranty of * - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files * - * LICENSE.TXT and LICENSE-BSD.TXT for more details. * - * * - *************************************************************************/ - -/* - -given (A,b,lo,hi), solve the LCP problem: A*x = b+w, where each x(i),w(i) -satisfies one of - (1) x = lo, w >= 0 - (2) x = hi, w <= 0 - (3) lo < x < hi, w = 0 -A is a matrix of dimension n*n, everything else is a vector of size n*1. -lo and hi can be +/- dInfinity as needed. the first `nub' variables are -unbounded, i.e. hi and lo are assumed to be +/- dInfinity. - -we restrict lo(i) <= 0 and hi(i) >= 0. - -the original data (A,b) may be modified by this function. - -if the `findex' (friction index) parameter is nonzero, it points to an array -of index values. in this case constraints that have findex[i] >= 0 are -special. all non-special constraints are solved for, then the lo and hi values -for the special constraints are set: - hi[i] = abs( hi[i] * x[findex[i]] ) - lo[i] = -hi[i] -and the solution continues. this mechanism allows a friction approximation -to be implemented. the first `nub' variables are assumed to have findex < 0. - -*/ - - -#ifndef _BT_LCP_H_ -#define _BT_LCP_H_ - -#include <stdlib.h> -#include <stdio.h> -#include <assert.h> - - -#include "LinearMath/btScalar.h" -#include "LinearMath/btAlignedObjectArray.h" - -struct btDantzigScratchMemory -{ - btAlignedObjectArray<btScalar> m_scratch; - btAlignedObjectArray<btScalar> L; - btAlignedObjectArray<btScalar> d; - btAlignedObjectArray<btScalar> delta_w; - btAlignedObjectArray<btScalar> delta_x; - btAlignedObjectArray<btScalar> Dell; - btAlignedObjectArray<btScalar> ell; - btAlignedObjectArray<btScalar*> Arows; - btAlignedObjectArray<int> p; - btAlignedObjectArray<int> C; - btAlignedObjectArray<bool> state; -}; - -//return false if solving failed -bool btSolveDantzigLCP (int n, btScalar *A, btScalar *x, btScalar *b, btScalar *w, - int nub, btScalar *lo, btScalar *hi, int *findex,btDantzigScratchMemory& scratch); - - - -#endif //_BT_LCP_H_ diff --git a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btDantzigSolver.h b/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btDantzigSolver.h deleted file mode 100644 index 2a2f2d3d32..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btDantzigSolver.h +++ /dev/null @@ -1,112 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ -///original version written by Erwin Coumans, October 2013 - -#ifndef BT_DANTZIG_SOLVER_H -#define BT_DANTZIG_SOLVER_H - -#include "btMLCPSolverInterface.h" -#include "btDantzigLCP.h" - - -class btDantzigSolver : public btMLCPSolverInterface -{ -protected: - - btScalar m_acceptableUpperLimitSolution; - - btAlignedObjectArray<char> m_tempBuffer; - - btAlignedObjectArray<btScalar> m_A; - btAlignedObjectArray<btScalar> m_b; - btAlignedObjectArray<btScalar> m_x; - btAlignedObjectArray<btScalar> m_lo; - btAlignedObjectArray<btScalar> m_hi; - btAlignedObjectArray<int> m_dependencies; - btDantzigScratchMemory m_scratchMemory; -public: - - btDantzigSolver() - :m_acceptableUpperLimitSolution(btScalar(1000)) - { - } - - virtual bool solveMLCP(const btMatrixXu & A, const btVectorXu & b, btVectorXu& x, const btVectorXu & lo,const btVectorXu & hi,const btAlignedObjectArray<int>& limitDependency, int numIterations, bool useSparsity = true) - { - bool result = true; - int n = b.rows(); - if (n) - { - int nub = 0; - btAlignedObjectArray<btScalar> ww; - ww.resize(n); - - - const btScalar* Aptr = A.getBufferPointer(); - m_A.resize(n*n); - for (int i=0;i<n*n;i++) - { - m_A[i] = Aptr[i]; - - } - - m_b.resize(n); - m_x.resize(n); - m_lo.resize(n); - m_hi.resize(n); - m_dependencies.resize(n); - for (int i=0;i<n;i++) - { - m_lo[i] = lo[i]; - m_hi[i] = hi[i]; - m_b[i] = b[i]; - m_x[i] = x[i]; - m_dependencies[i] = limitDependency[i]; - } - - - result = btSolveDantzigLCP (n,&m_A[0],&m_x[0],&m_b[0],&ww[0],nub,&m_lo[0],&m_hi[0],&m_dependencies[0],m_scratchMemory); - if (!result) - return result; - -// printf("numAllocas = %d\n",numAllocas); - for (int i=0;i<n;i++) - { - volatile btScalar xx = m_x[i]; - if (xx != m_x[i]) - return false; - if (x[i] >= m_acceptableUpperLimitSolution) - { - return false; - } - - if (x[i] <= -m_acceptableUpperLimitSolution) - { - return false; - } - } - - for (int i=0;i<n;i++) - { - x[i] = m_x[i]; - } - - } - - return result; - } -}; - -#endif //BT_DANTZIG_SOLVER_H diff --git a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btLemkeAlgorithm.cpp b/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btLemkeAlgorithm.cpp deleted file mode 100644 index 1f4015c7c7..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btLemkeAlgorithm.cpp +++ /dev/null @@ -1,371 +0,0 @@ -/* Copyright (C) 2004-2013 MBSim Development Team - -Code was converted for the Bullet Continuous Collision Detection and Physics Library - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -//The original version is here -//https://code.google.com/p/mbsim-env/source/browse/trunk/kernel/mbsim/numerics/linear_complementarity_problem/lemke_algorithm.cc -//This file is re-distributed under the ZLib license, with permission of the original author -//Math library was replaced from fmatvec to a the file src/LinearMath/btMatrixX.h -//STL/std::vector replaced by btAlignedObjectArray - - - -#include "btLemkeAlgorithm.h" - -#undef BT_DEBUG_OSTREAM -#ifdef BT_DEBUG_OSTREAM -using namespace std; -#endif //BT_DEBUG_OSTREAM - -btScalar btMachEps() -{ - static bool calculated=false; - static btScalar machEps = btScalar(1.); - if (!calculated) - { - do { - machEps /= btScalar(2.0); - // If next epsilon yields 1, then break, because current - // epsilon is the machine epsilon. - } - while ((btScalar)(1.0 + (machEps/btScalar(2.0))) != btScalar(1.0)); -// printf( "\nCalculated Machine epsilon: %G\n", machEps ); - calculated=true; - } - return machEps; -} - -btScalar btEpsRoot() { - - static btScalar epsroot = 0.; - static bool alreadyCalculated = false; - - if (!alreadyCalculated) { - epsroot = btSqrt(btMachEps()); - alreadyCalculated = true; - } - return epsroot; -} - - - - btVectorXu btLemkeAlgorithm::solve(unsigned int maxloops /* = 0*/) -{ - - - steps = 0; - - int dim = m_q.size(); -#ifdef BT_DEBUG_OSTREAM - if(DEBUGLEVEL >= 1) { - cout << "Dimension = " << dim << endl; - } -#endif //BT_DEBUG_OSTREAM - - btVectorXu solutionVector(2 * dim); - solutionVector.setZero(); - - //, INIT, 0.); - - btMatrixXu ident(dim, dim); - ident.setIdentity(); -#ifdef BT_DEBUG_OSTREAM - cout << m_M << std::endl; -#endif - - btMatrixXu mNeg = m_M.negative(); - - btMatrixXu A(dim, 2 * dim + 2); - // - A.setSubMatrix(0, 0, dim - 1, dim - 1,ident); - A.setSubMatrix(0, dim, dim - 1, 2 * dim - 1,mNeg); - A.setSubMatrix(0, 2 * dim, dim - 1, 2 * dim, -1.f); - A.setSubMatrix(0, 2 * dim + 1, dim - 1, 2 * dim + 1,m_q); - -#ifdef BT_DEBUG_OSTREAM - cout << A << std::endl; -#endif //BT_DEBUG_OSTREAM - - - // btVectorXu q_; - // q_ >> A(0, 2 * dim + 1, dim - 1, 2 * dim + 1); - - btAlignedObjectArray<int> basis; - //At first, all w-values are in the basis - for (int i = 0; i < dim; i++) - basis.push_back(i); - - int pivotRowIndex = -1; - btScalar minValue = 1e30f; - bool greaterZero = true; - for (int i=0;i<dim;i++) - { - btScalar v =A(i,2*dim+1); - if (v<minValue) - { - minValue=v; - pivotRowIndex = i; - } - if (v<0) - greaterZero = false; - } - - - - // int pivotRowIndex = q_.minIndex();//minIndex(q_); // first row is that with lowest q-value - int z0Row = pivotRowIndex; // remember the col of z0 for ending algorithm afterwards - int pivotColIndex = 2 * dim; // first col is that of z0 - -#ifdef BT_DEBUG_OSTREAM - if (DEBUGLEVEL >= 3) - { - // cout << "A: " << A << endl; - cout << "pivotRowIndex " << pivotRowIndex << endl; - cout << "pivotColIndex " << pivotColIndex << endl; - cout << "Basis: "; - for (int i = 0; i < basis.size(); i++) - cout << basis[i] << " "; - cout << endl; - } -#endif //BT_DEBUG_OSTREAM - - if (!greaterZero) - { - - if (maxloops == 0) { - maxloops = 100; -// maxloops = UINT_MAX; //TODO: not a really nice way, problem is: maxloops should be 2^dim (=1<<dim), but this could exceed UINT_MAX and thus the result would be 0 and therefore the lemke algorithm wouldn't start but probably would find a solution within less then UINT_MAX steps. Therefore this constant is used as a upper border right now... - } - - /*start looping*/ - for(steps = 0; steps < maxloops; steps++) { - - GaussJordanEliminationStep(A, pivotRowIndex, pivotColIndex, basis); -#ifdef BT_DEBUG_OSTREAM - if (DEBUGLEVEL >= 3) { - // cout << "A: " << A << endl; - cout << "pivotRowIndex " << pivotRowIndex << endl; - cout << "pivotColIndex " << pivotColIndex << endl; - cout << "Basis: "; - for (int i = 0; i < basis.size(); i++) - cout << basis[i] << " "; - cout << endl; - } -#endif //BT_DEBUG_OSTREAM - - int pivotColIndexOld = pivotColIndex; - - /*find new column index */ - if (basis[pivotRowIndex] < dim) //if a w-value left the basis get in the correspondent z-value - pivotColIndex = basis[pivotRowIndex] + dim; - else - //else do it the other way round and get in the corresponding w-value - pivotColIndex = basis[pivotRowIndex] - dim; - - /*the column becomes part of the basis*/ - basis[pivotRowIndex] = pivotColIndexOld; - - pivotRowIndex = findLexicographicMinimum(A, pivotColIndex); - - if(z0Row == pivotRowIndex) { //if z0 leaves the basis the solution is found --> one last elimination step is necessary - GaussJordanEliminationStep(A, pivotRowIndex, pivotColIndex, basis); - basis[pivotRowIndex] = pivotColIndex; //update basis - break; - } - - } -#ifdef BT_DEBUG_OSTREAM - if(DEBUGLEVEL >= 1) { - cout << "Number of loops: " << steps << endl; - cout << "Number of maximal loops: " << maxloops << endl; - } -#endif //BT_DEBUG_OSTREAM - - if(!validBasis(basis)) { - info = -1; -#ifdef BT_DEBUG_OSTREAM - if(DEBUGLEVEL >= 1) - cerr << "Lemke-Algorithm ended with Ray-Termination (no valid solution)." << endl; -#endif //BT_DEBUG_OSTREAM - - return solutionVector; - } - - } -#ifdef BT_DEBUG_OSTREAM - if (DEBUGLEVEL >= 2) { - // cout << "A: " << A << endl; - cout << "pivotRowIndex " << pivotRowIndex << endl; - cout << "pivotColIndex " << pivotColIndex << endl; - } -#endif //BT_DEBUG_OSTREAM - - for (int i = 0; i < basis.size(); i++) - { - solutionVector[basis[i]] = A(i,2*dim+1);//q_[i]; - } - - info = 0; - - return solutionVector; - } - - int btLemkeAlgorithm::findLexicographicMinimum(const btMatrixXu& A, const int & pivotColIndex) { - int RowIndex = 0; - int dim = A.rows(); - btAlignedObjectArray<btVectorXu> Rows; - for (int row = 0; row < dim; row++) - { - - btVectorXu vec(dim + 1); - vec.setZero();//, INIT, 0.) - Rows.push_back(vec); - btScalar a = A(row, pivotColIndex); - if (a > 0) { - Rows[row][0] = A(row, 2 * dim + 1) / a; - Rows[row][1] = A(row, 2 * dim) / a; - for (int j = 2; j < dim + 1; j++) - Rows[row][j] = A(row, j - 1) / a; - -#ifdef BT_DEBUG_OSTREAM - // if (DEBUGLEVEL) { - // cout << "Rows(" << row << ") = " << Rows[row] << endl; - // } -#endif - } - } - - for (int i = 0; i < Rows.size(); i++) - { - if (Rows[i].nrm2() > 0.) { - - int j = 0; - for (; j < Rows.size(); j++) - { - if(i != j) - { - if(Rows[j].nrm2() > 0.) - { - btVectorXu test(dim + 1); - for (int ii=0;ii<dim+1;ii++) - { - test[ii] = Rows[j][ii] - Rows[i][ii]; - } - - //=Rows[j] - Rows[i] - if (! LexicographicPositive(test)) - break; - } - } - } - - if (j == Rows.size()) - { - RowIndex += i; - break; - } - } - } - - return RowIndex; - } - - bool btLemkeAlgorithm::LexicographicPositive(const btVectorXu & v) -{ - int i = 0; - // if (DEBUGLEVEL) - // cout << "v " << v << endl; - - while(i < v.size()-1 && fabs(v[i]) < btMachEps()) - i++; - if (v[i] > 0) - return true; - - return false; - } - -void btLemkeAlgorithm::GaussJordanEliminationStep(btMatrixXu& A, int pivotRowIndex, int pivotColumnIndex, const btAlignedObjectArray<int>& basis) -{ - - btScalar a = -1 / A(pivotRowIndex, pivotColumnIndex); -#ifdef BT_DEBUG_OSTREAM - cout << A << std::endl; -#endif - - for (int i = 0; i < A.rows(); i++) - { - if (i != pivotRowIndex) - { - for (int j = 0; j < A.cols(); j++) - { - if (j != pivotColumnIndex) - { - btScalar v = A(i, j); - v += A(pivotRowIndex, j) * A(i, pivotColumnIndex) * a; - A.setElem(i, j, v); - } - } - } - } - -#ifdef BT_DEBUG_OSTREAM - cout << A << std::endl; -#endif //BT_DEBUG_OSTREAM - for (int i = 0; i < A.cols(); i++) - { - A.mulElem(pivotRowIndex, i,-a); - } -#ifdef BT_DEBUG_OSTREAM - cout << A << std::endl; -#endif //#ifdef BT_DEBUG_OSTREAM - - for (int i = 0; i < A.rows(); i++) - { - if (i != pivotRowIndex) - { - A.setElem(i, pivotColumnIndex,0); - } - } -#ifdef BT_DEBUG_OSTREAM - cout << A << std::endl; -#endif //#ifdef BT_DEBUG_OSTREAM - } - - bool btLemkeAlgorithm::greaterZero(const btVectorXu & vector) -{ - bool isGreater = true; - for (int i = 0; i < vector.size(); i++) { - if (vector[i] < 0) { - isGreater = false; - break; - } - } - - return isGreater; - } - - bool btLemkeAlgorithm::validBasis(const btAlignedObjectArray<int>& basis) - { - bool isValid = true; - for (int i = 0; i < basis.size(); i++) { - if (basis[i] >= basis.size() * 2) { //then z0 is in the base - isValid = false; - break; - } - } - - return isValid; - } - - diff --git a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btLemkeAlgorithm.h b/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btLemkeAlgorithm.h deleted file mode 100644 index 7555cd9d20..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btLemkeAlgorithm.h +++ /dev/null @@ -1,108 +0,0 @@ -/* Copyright (C) 2004-2013 MBSim Development Team - -Code was converted for the Bullet Continuous Collision Detection and Physics Library - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ - -//The original version is here -//https://code.google.com/p/mbsim-env/source/browse/trunk/kernel/mbsim/numerics/linear_complementarity_problem/lemke_algorithm.cc -//This file is re-distributed under the ZLib license, with permission of the original author (Kilian Grundl) -//Math library was replaced from fmatvec to a the file src/LinearMath/btMatrixX.h -//STL/std::vector replaced by btAlignedObjectArray - - - -#ifndef BT_NUMERICS_LEMKE_ALGORITHM_H_ -#define BT_NUMERICS_LEMKE_ALGORITHM_H_ - -#include "LinearMath/btMatrixX.h" - - -#include <vector> //todo: replace by btAlignedObjectArray - -class btLemkeAlgorithm -{ -public: - - - btLemkeAlgorithm(const btMatrixXu& M_, const btVectorXu& q_, const int & DEBUGLEVEL_ = 0) : - DEBUGLEVEL(DEBUGLEVEL_) - { - setSystem(M_, q_); - } - - /* GETTER / SETTER */ - /** - * \brief return info of solution process - */ - int getInfo() { - return info; - } - - /** - * \brief get the number of steps until the solution was found - */ - int getSteps(void) { - return steps; - } - - - - /** - * \brief set system with Matrix M and vector q - */ - void setSystem(const btMatrixXu & M_, const btVectorXu & q_) - { - m_M = M_; - m_q = q_; - } - /***************************************************/ - - /** - * \brief solve algorithm adapted from : Fast Implementation of Lemke’s Algorithm for Rigid Body Contact Simulation (John E. Lloyd) - */ - btVectorXu solve(unsigned int maxloops = 0); - - virtual ~btLemkeAlgorithm() { - } - -protected: - int findLexicographicMinimum(const btMatrixXu &A, const int & pivotColIndex); - bool LexicographicPositive(const btVectorXu & v); - void GaussJordanEliminationStep(btMatrixXu &A, int pivotRowIndex, int pivotColumnIndex, const btAlignedObjectArray<int>& basis); - bool greaterZero(const btVectorXu & vector); - bool validBasis(const btAlignedObjectArray<int>& basis); - - btMatrixXu m_M; - btVectorXu m_q; - - /** - * \brief number of steps until the Lemke algorithm found a solution - */ - unsigned int steps; - - /** - * \brief define level of debug output - */ - int DEBUGLEVEL; - - /** - * \brief did the algorithm find a solution - * - * -1 : not successful - * 0 : successful - */ - int info; -}; - - -#endif /* BT_NUMERICS_LEMKE_ALGORITHM_H_ */ diff --git a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btLemkeSolver.h b/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btLemkeSolver.h deleted file mode 100644 index 98484c3796..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btLemkeSolver.h +++ /dev/null @@ -1,350 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ -///original version written by Erwin Coumans, October 2013 - -#ifndef BT_LEMKE_SOLVER_H -#define BT_LEMKE_SOLVER_H - - -#include "btMLCPSolverInterface.h" -#include "btLemkeAlgorithm.h" - - - - -///The btLemkeSolver is based on "Fast Implementation of Lemke’s Algorithm for Rigid Body Contact Simulation (John E. Lloyd) " -///It is a slower but more accurate solver. Increase the m_maxLoops for better convergence, at the cost of more CPU time. -///The original implementation of the btLemkeAlgorithm was done by Kilian Grundl from the MBSim team -class btLemkeSolver : public btMLCPSolverInterface -{ -protected: - -public: - - btScalar m_maxValue; - int m_debugLevel; - int m_maxLoops; - bool m_useLoHighBounds; - - - - btLemkeSolver() - :m_maxValue(100000), - m_debugLevel(0), - m_maxLoops(1000), - m_useLoHighBounds(true) - { - } - virtual bool solveMLCP(const btMatrixXu & A, const btVectorXu & b, btVectorXu& x, const btVectorXu & lo,const btVectorXu & hi,const btAlignedObjectArray<int>& limitDependency, int numIterations, bool useSparsity = true) - { - - if (m_useLoHighBounds) - { - - BT_PROFILE("btLemkeSolver::solveMLCP"); - int n = A.rows(); - if (0==n) - return true; - - bool fail = false; - - btVectorXu solution(n); - btVectorXu q1; - q1.resize(n); - for (int row=0;row<n;row++) - { - q1[row] = -b[row]; - } - - // cout << "A" << endl; - // cout << A << endl; - - ///////////////////////////////////// - - //slow matrix inversion, replace with LU decomposition - btMatrixXu A1; - btMatrixXu B(n,n); - { - BT_PROFILE("inverse(slow)"); - A1.resize(A.rows(),A.cols()); - for (int row=0;row<A.rows();row++) - { - for (int col=0;col<A.cols();col++) - { - A1.setElem(row,col,A(row,col)); - } - } - - btMatrixXu matrix; - matrix.resize(n,2*n); - for (int row=0;row<n;row++) - { - for (int col=0;col<n;col++) - { - matrix.setElem(row,col,A1(row,col)); - } - } - - - btScalar ratio,a; - int i,j,k; - for(i = 0; i < n; i++){ - for(j = n; j < 2*n; j++){ - if(i==(j-n)) - matrix.setElem(i,j,1.0); - else - matrix.setElem(i,j,0.0); - } - } - for(i = 0; i < n; i++){ - for(j = 0; j < n; j++){ - if(i!=j) - { - btScalar v = matrix(i,i); - if (btFuzzyZero(v)) - { - a = 0.000001f; - } - ratio = matrix(j,i)/matrix(i,i); - for(k = 0; k < 2*n; k++){ - matrix.addElem(j,k,- ratio * matrix(i,k)); - } - } - } - } - for(i = 0; i < n; i++){ - a = matrix(i,i); - if (btFuzzyZero(a)) - { - a = 0.000001f; - } - btScalar invA = 1.f/a; - for(j = 0; j < 2*n; j++){ - matrix.mulElem(i,j,invA); - } - } - - - - - - for (int row=0;row<n;row++) - { - for (int col=0;col<n;col++) - { - B.setElem(row,col,matrix(row,n+col)); - } - } - } - - btMatrixXu b1(n,1); - - btMatrixXu M(n*2,n*2); - for (int row=0;row<n;row++) - { - b1.setElem(row,0,-b[row]); - for (int col=0;col<n;col++) - { - btScalar v =B(row,col); - M.setElem(row,col,v); - M.setElem(n+row,n+col,v); - M.setElem(n+row,col,-v); - M.setElem(row,n+col,-v); - - } - } - - btMatrixXu Bb1 = B*b1; -// q = [ (-B*b1 - lo)' (hi + B*b1)' ]' - - btVectorXu qq; - qq.resize(n*2); - for (int row=0;row<n;row++) - { - qq[row] = -Bb1(row,0)-lo[row]; - qq[n+row] = Bb1(row,0)+hi[row]; - } - - btVectorXu z1; - - btMatrixXu y1; - y1.resize(n,1); - btLemkeAlgorithm lemke(M,qq,m_debugLevel); - { - BT_PROFILE("lemke.solve"); - lemke.setSystem(M,qq); - z1 = lemke.solve(m_maxLoops); - } - for (int row=0;row<n;row++) - { - y1.setElem(row,0,z1[2*n+row]-z1[3*n+row]); - } - btMatrixXu y1_b1(n,1); - for (int i=0;i<n;i++) - { - y1_b1.setElem(i,0,y1(i,0)-b1(i,0)); - } - - btMatrixXu x1; - - x1 = B*(y1_b1); - - for (int row=0;row<n;row++) - { - solution[row] = x1(row,0);//n]; - } - - int errorIndexMax = -1; - int errorIndexMin = -1; - float errorValueMax = -1e30; - float errorValueMin = 1e30; - - for (int i=0;i<n;i++) - { - x[i] = solution[i]; - volatile btScalar check = x[i]; - if (x[i] != check) - { - //printf("Lemke result is #NAN\n"); - x.setZero(); - return false; - } - - //this is some hack/safety mechanism, to discard invalid solutions from the Lemke solver - //we need to figure out why it happens, and fix it, or detect it properly) - if (x[i]>m_maxValue) - { - if (x[i]> errorValueMax) - { - fail = true; - errorIndexMax = i; - errorValueMax = x[i]; - } - ////printf("x[i] = %f,",x[i]); - } - if (x[i]<-m_maxValue) - { - if (x[i]<errorValueMin) - { - errorIndexMin = i; - errorValueMin = x[i]; - fail = true; - //printf("x[i] = %f,",x[i]); - } - } - } - if (fail) - { - int m_errorCountTimes = 0; - if (errorIndexMin<0) - errorValueMin = 0.f; - if (errorIndexMax<0) - errorValueMax = 0.f; - m_errorCountTimes++; - // printf("Error (x[%d] = %f, x[%d] = %f), resetting %d times\n", errorIndexMin,errorValueMin, errorIndexMax, errorValueMax, errorCountTimes++); - for (int i=0;i<n;i++) - { - x[i]=0.f; - } - } - return !fail; - } else - - { - int dimension = A.rows(); - if (0==dimension) - return true; - -// printf("================ solving using Lemke/Newton/Fixpoint\n"); - - btVectorXu q; - q.resize(dimension); - for (int row=0;row<dimension;row++) - { - q[row] = -b[row]; - } - - btLemkeAlgorithm lemke(A,q,m_debugLevel); - - - lemke.setSystem(A,q); - - btVectorXu solution = lemke.solve(m_maxLoops); - - //check solution - - bool fail = false; - int errorIndexMax = -1; - int errorIndexMin = -1; - float errorValueMax = -1e30; - float errorValueMin = 1e30; - - for (int i=0;i<dimension;i++) - { - x[i] = solution[i+dimension]; - volatile btScalar check = x[i]; - if (x[i] != check) - { - x.setZero(); - return false; - } - - //this is some hack/safety mechanism, to discard invalid solutions from the Lemke solver - //we need to figure out why it happens, and fix it, or detect it properly) - if (x[i]>m_maxValue) - { - if (x[i]> errorValueMax) - { - fail = true; - errorIndexMax = i; - errorValueMax = x[i]; - } - ////printf("x[i] = %f,",x[i]); - } - if (x[i]<-m_maxValue) - { - if (x[i]<errorValueMin) - { - errorIndexMin = i; - errorValueMin = x[i]; - fail = true; - //printf("x[i] = %f,",x[i]); - } - } - } - if (fail) - { - static int errorCountTimes = 0; - if (errorIndexMin<0) - errorValueMin = 0.f; - if (errorIndexMax<0) - errorValueMax = 0.f; - printf("Error (x[%d] = %f, x[%d] = %f), resetting %d times\n", errorIndexMin,errorValueMin, errorIndexMax, errorValueMax, errorCountTimes++); - for (int i=0;i<dimension;i++) - { - x[i]=0.f; - } - } - - - return !fail; - } - return true; - - } - -}; - -#endif //BT_LEMKE_SOLVER_H diff --git a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btMLCPSolver.cpp b/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btMLCPSolver.cpp deleted file mode 100644 index 8f54c52626..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btMLCPSolver.cpp +++ /dev/null @@ -1,639 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ -///original version written by Erwin Coumans, October 2013 - -#include "btMLCPSolver.h" -#include "LinearMath/btMatrixX.h" -#include "LinearMath/btQuickprof.h" -#include "btSolveProjectedGaussSeidel.h" - - -btMLCPSolver::btMLCPSolver( btMLCPSolverInterface* solver) -:m_solver(solver), -m_fallback(0) -{ -} - -btMLCPSolver::~btMLCPSolver() -{ -} - -bool gUseMatrixMultiply = false; -bool interleaveContactAndFriction = false; - -btScalar btMLCPSolver::solveGroupCacheFriendlySetup(btCollisionObject** bodies, int numBodiesUnUsed, btPersistentManifold** manifoldPtr, int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* debugDrawer) -{ - btSequentialImpulseConstraintSolver::solveGroupCacheFriendlySetup( bodies, numBodiesUnUsed, manifoldPtr, numManifolds,constraints,numConstraints,infoGlobal,debugDrawer); - - { - BT_PROFILE("gather constraint data"); - - int numFrictionPerContact = m_tmpSolverContactConstraintPool.size()==m_tmpSolverContactFrictionConstraintPool.size()? 1 : 2; - - - // int numBodies = m_tmpSolverBodyPool.size(); - m_allConstraintPtrArray.resize(0); - m_limitDependencies.resize(m_tmpSolverNonContactConstraintPool.size()+m_tmpSolverContactConstraintPool.size()+m_tmpSolverContactFrictionConstraintPool.size()); - btAssert(m_limitDependencies.size() == m_tmpSolverNonContactConstraintPool.size()+m_tmpSolverContactConstraintPool.size()+m_tmpSolverContactFrictionConstraintPool.size()); - // printf("m_limitDependencies.size() = %d\n",m_limitDependencies.size()); - - int dindex = 0; - for (int i=0;i<m_tmpSolverNonContactConstraintPool.size();i++) - { - m_allConstraintPtrArray.push_back(&m_tmpSolverNonContactConstraintPool[i]); - m_limitDependencies[dindex++] = -1; - } - - ///The btSequentialImpulseConstraintSolver moves all friction constraints at the very end, we can also interleave them instead - - int firstContactConstraintOffset=dindex; - - if (interleaveContactAndFriction) - { - for (int i=0;i<m_tmpSolverContactConstraintPool.size();i++) - { - m_allConstraintPtrArray.push_back(&m_tmpSolverContactConstraintPool[i]); - m_limitDependencies[dindex++] = -1; - m_allConstraintPtrArray.push_back(&m_tmpSolverContactFrictionConstraintPool[i*numFrictionPerContact]); - int findex = (m_tmpSolverContactFrictionConstraintPool[i*numFrictionPerContact].m_frictionIndex*(1+numFrictionPerContact)); - m_limitDependencies[dindex++] = findex +firstContactConstraintOffset; - if (numFrictionPerContact==2) - { - m_allConstraintPtrArray.push_back(&m_tmpSolverContactFrictionConstraintPool[i*numFrictionPerContact+1]); - m_limitDependencies[dindex++] = findex+firstContactConstraintOffset; - } - } - } else - { - for (int i=0;i<m_tmpSolverContactConstraintPool.size();i++) - { - m_allConstraintPtrArray.push_back(&m_tmpSolverContactConstraintPool[i]); - m_limitDependencies[dindex++] = -1; - } - for (int i=0;i<m_tmpSolverContactFrictionConstraintPool.size();i++) - { - m_allConstraintPtrArray.push_back(&m_tmpSolverContactFrictionConstraintPool[i]); - m_limitDependencies[dindex++] = m_tmpSolverContactFrictionConstraintPool[i].m_frictionIndex+firstContactConstraintOffset; - } - - } - - - if (!m_allConstraintPtrArray.size()) - { - m_A.resize(0,0); - m_b.resize(0); - m_x.resize(0); - m_lo.resize(0); - m_hi.resize(0); - return 0.f; - } - } - - - if (gUseMatrixMultiply) - { - BT_PROFILE("createMLCP"); - createMLCP(infoGlobal); - } - else - { - BT_PROFILE("createMLCPFast"); - createMLCPFast(infoGlobal); - } - - return 0.f; -} - -bool btMLCPSolver::solveMLCP(const btContactSolverInfo& infoGlobal) -{ - bool result = true; - - if (m_A.rows()==0) - return true; - - //if using split impulse, we solve 2 separate (M)LCPs - if (infoGlobal.m_splitImpulse) - { - btMatrixXu Acopy = m_A; - btAlignedObjectArray<int> limitDependenciesCopy = m_limitDependencies; -// printf("solve first LCP\n"); - result = m_solver->solveMLCP(m_A, m_b, m_x, m_lo,m_hi, m_limitDependencies,infoGlobal.m_numIterations ); - if (result) - result = m_solver->solveMLCP(Acopy, m_bSplit, m_xSplit, m_lo,m_hi, limitDependenciesCopy,infoGlobal.m_numIterations ); - - } else - { - result = m_solver->solveMLCP(m_A, m_b, m_x, m_lo,m_hi, m_limitDependencies,infoGlobal.m_numIterations ); - } - return result; -} - -struct btJointNode -{ - int jointIndex; // pointer to enclosing dxJoint object - int otherBodyIndex; // *other* body this joint is connected to - int nextJointNodeIndex;//-1 for null - int constraintRowIndex; -}; - - - -void btMLCPSolver::createMLCPFast(const btContactSolverInfo& infoGlobal) -{ - int numContactRows = interleaveContactAndFriction ? 3 : 1; - - int numConstraintRows = m_allConstraintPtrArray.size(); - int n = numConstraintRows; - { - BT_PROFILE("init b (rhs)"); - m_b.resize(numConstraintRows); - m_bSplit.resize(numConstraintRows); - m_b.setZero(); - m_bSplit.setZero(); - for (int i=0;i<numConstraintRows ;i++) - { - btScalar jacDiag = m_allConstraintPtrArray[i]->m_jacDiagABInv; - if (!btFuzzyZero(jacDiag)) - { - btScalar rhs = m_allConstraintPtrArray[i]->m_rhs; - btScalar rhsPenetration = m_allConstraintPtrArray[i]->m_rhsPenetration; - m_b[i]=rhs/jacDiag; - m_bSplit[i] = rhsPenetration/jacDiag; - } - - } - } - -// btScalar* w = 0; -// int nub = 0; - - m_lo.resize(numConstraintRows); - m_hi.resize(numConstraintRows); - - { - BT_PROFILE("init lo/ho"); - - for (int i=0;i<numConstraintRows;i++) - { - if (0)//m_limitDependencies[i]>=0) - { - m_lo[i] = -BT_INFINITY; - m_hi[i] = BT_INFINITY; - } else - { - m_lo[i] = m_allConstraintPtrArray[i]->m_lowerLimit; - m_hi[i] = m_allConstraintPtrArray[i]->m_upperLimit; - } - } - } - - // - int m=m_allConstraintPtrArray.size(); - - int numBodies = m_tmpSolverBodyPool.size(); - btAlignedObjectArray<int> bodyJointNodeArray; - { - BT_PROFILE("bodyJointNodeArray.resize"); - bodyJointNodeArray.resize(numBodies,-1); - } - btAlignedObjectArray<btJointNode> jointNodeArray; - { - BT_PROFILE("jointNodeArray.reserve"); - jointNodeArray.reserve(2*m_allConstraintPtrArray.size()); - } - - btMatrixXu& J3 = m_scratchJ3; - { - BT_PROFILE("J3.resize"); - J3.resize(2*m,8); - } - btMatrixXu& JinvM3 = m_scratchJInvM3; - { - BT_PROFILE("JinvM3.resize/setZero"); - - JinvM3.resize(2*m,8); - JinvM3.setZero(); - J3.setZero(); - } - int cur=0; - int rowOffset = 0; - btAlignedObjectArray<int>& ofs = m_scratchOfs; - { - BT_PROFILE("ofs resize"); - ofs.resize(0); - ofs.resizeNoInitialize(m_allConstraintPtrArray.size()); - } - { - BT_PROFILE("Compute J and JinvM"); - int c=0; - - int numRows = 0; - - for (int i=0;i<m_allConstraintPtrArray.size();i+=numRows,c++) - { - ofs[c] = rowOffset; - int sbA = m_allConstraintPtrArray[i]->m_solverBodyIdA; - int sbB = m_allConstraintPtrArray[i]->m_solverBodyIdB; - btRigidBody* orgBodyA = m_tmpSolverBodyPool[sbA].m_originalBody; - btRigidBody* orgBodyB = m_tmpSolverBodyPool[sbB].m_originalBody; - - numRows = i<m_tmpSolverNonContactConstraintPool.size() ? m_tmpConstraintSizesPool[c].m_numConstraintRows : numContactRows ; - if (orgBodyA) - { - { - int slotA=-1; - //find free jointNode slot for sbA - slotA =jointNodeArray.size(); - jointNodeArray.expand();//NonInitializing(); - int prevSlot = bodyJointNodeArray[sbA]; - bodyJointNodeArray[sbA] = slotA; - jointNodeArray[slotA].nextJointNodeIndex = prevSlot; - jointNodeArray[slotA].jointIndex = c; - jointNodeArray[slotA].constraintRowIndex = i; - jointNodeArray[slotA].otherBodyIndex = orgBodyB ? sbB : -1; - } - for (int row=0;row<numRows;row++,cur++) - { - btVector3 normalInvMass = m_allConstraintPtrArray[i+row]->m_contactNormal1 * orgBodyA->getInvMass(); - btVector3 relPosCrossNormalInvInertia = m_allConstraintPtrArray[i+row]->m_relpos1CrossNormal * orgBodyA->getInvInertiaTensorWorld(); - - for (int r=0;r<3;r++) - { - J3.setElem(cur,r,m_allConstraintPtrArray[i+row]->m_contactNormal1[r]); - J3.setElem(cur,r+4,m_allConstraintPtrArray[i+row]->m_relpos1CrossNormal[r]); - JinvM3.setElem(cur,r,normalInvMass[r]); - JinvM3.setElem(cur,r+4,relPosCrossNormalInvInertia[r]); - } - J3.setElem(cur,3,0); - JinvM3.setElem(cur,3,0); - J3.setElem(cur,7,0); - JinvM3.setElem(cur,7,0); - } - } else - { - cur += numRows; - } - if (orgBodyB) - { - - { - int slotB=-1; - //find free jointNode slot for sbA - slotB =jointNodeArray.size(); - jointNodeArray.expand();//NonInitializing(); - int prevSlot = bodyJointNodeArray[sbB]; - bodyJointNodeArray[sbB] = slotB; - jointNodeArray[slotB].nextJointNodeIndex = prevSlot; - jointNodeArray[slotB].jointIndex = c; - jointNodeArray[slotB].otherBodyIndex = orgBodyA ? sbA : -1; - jointNodeArray[slotB].constraintRowIndex = i; - } - - for (int row=0;row<numRows;row++,cur++) - { - btVector3 normalInvMassB = m_allConstraintPtrArray[i+row]->m_contactNormal2*orgBodyB->getInvMass(); - btVector3 relPosInvInertiaB = m_allConstraintPtrArray[i+row]->m_relpos2CrossNormal * orgBodyB->getInvInertiaTensorWorld(); - - for (int r=0;r<3;r++) - { - J3.setElem(cur,r,m_allConstraintPtrArray[i+row]->m_contactNormal2[r]); - J3.setElem(cur,r+4,m_allConstraintPtrArray[i+row]->m_relpos2CrossNormal[r]); - JinvM3.setElem(cur,r,normalInvMassB[r]); - JinvM3.setElem(cur,r+4,relPosInvInertiaB[r]); - } - J3.setElem(cur,3,0); - JinvM3.setElem(cur,3,0); - J3.setElem(cur,7,0); - JinvM3.setElem(cur,7,0); - } - } - else - { - cur += numRows; - } - rowOffset+=numRows; - - } - - } - - - //compute JinvM = J*invM. - const btScalar* JinvM = JinvM3.getBufferPointer(); - - const btScalar* Jptr = J3.getBufferPointer(); - { - BT_PROFILE("m_A.resize"); - m_A.resize(n,n); - } - - { - BT_PROFILE("m_A.setZero"); - m_A.setZero(); - } - int c=0; - { - int numRows = 0; - BT_PROFILE("Compute A"); - for (int i=0;i<m_allConstraintPtrArray.size();i+= numRows,c++) - { - int row__ = ofs[c]; - int sbA = m_allConstraintPtrArray[i]->m_solverBodyIdA; - int sbB = m_allConstraintPtrArray[i]->m_solverBodyIdB; - // btRigidBody* orgBodyA = m_tmpSolverBodyPool[sbA].m_originalBody; - // btRigidBody* orgBodyB = m_tmpSolverBodyPool[sbB].m_originalBody; - - numRows = i<m_tmpSolverNonContactConstraintPool.size() ? m_tmpConstraintSizesPool[c].m_numConstraintRows : numContactRows ; - - const btScalar *JinvMrow = JinvM + 2*8*(size_t)row__; - - { - int startJointNodeA = bodyJointNodeArray[sbA]; - while (startJointNodeA>=0) - { - int j0 = jointNodeArray[startJointNodeA].jointIndex; - int cr0 = jointNodeArray[startJointNodeA].constraintRowIndex; - if (j0<c) - { - - int numRowsOther = cr0 < m_tmpSolverNonContactConstraintPool.size() ? m_tmpConstraintSizesPool[j0].m_numConstraintRows : numContactRows; - size_t ofsother = (m_allConstraintPtrArray[cr0]->m_solverBodyIdB == sbA) ? 8*numRowsOther : 0; - //printf("%d joint i %d and j0: %d: ",count++,i,j0); - m_A.multiplyAdd2_p8r ( JinvMrow, - Jptr + 2*8*(size_t)ofs[j0] + ofsother, numRows, numRowsOther, row__,ofs[j0]); - } - startJointNodeA = jointNodeArray[startJointNodeA].nextJointNodeIndex; - } - } - - { - int startJointNodeB = bodyJointNodeArray[sbB]; - while (startJointNodeB>=0) - { - int j1 = jointNodeArray[startJointNodeB].jointIndex; - int cj1 = jointNodeArray[startJointNodeB].constraintRowIndex; - - if (j1<c) - { - int numRowsOther = cj1 < m_tmpSolverNonContactConstraintPool.size() ? m_tmpConstraintSizesPool[j1].m_numConstraintRows : numContactRows; - size_t ofsother = (m_allConstraintPtrArray[cj1]->m_solverBodyIdB == sbB) ? 8*numRowsOther : 0; - m_A.multiplyAdd2_p8r ( JinvMrow + 8*(size_t)numRows, - Jptr + 2*8*(size_t)ofs[j1] + ofsother, numRows, numRowsOther, row__,ofs[j1]); - } - startJointNodeB = jointNodeArray[startJointNodeB].nextJointNodeIndex; - } - } - } - - { - BT_PROFILE("compute diagonal"); - // compute diagonal blocks of m_A - - int row__ = 0; - int numJointRows = m_allConstraintPtrArray.size(); - - int jj=0; - for (;row__<numJointRows;) - { - - //int sbA = m_allConstraintPtrArray[row__]->m_solverBodyIdA; - int sbB = m_allConstraintPtrArray[row__]->m_solverBodyIdB; - // btRigidBody* orgBodyA = m_tmpSolverBodyPool[sbA].m_originalBody; - btRigidBody* orgBodyB = m_tmpSolverBodyPool[sbB].m_originalBody; - - - const unsigned int infom = row__ < m_tmpSolverNonContactConstraintPool.size() ? m_tmpConstraintSizesPool[jj].m_numConstraintRows : numContactRows; - - const btScalar *JinvMrow = JinvM + 2*8*(size_t)row__; - const btScalar *Jrow = Jptr + 2*8*(size_t)row__; - m_A.multiply2_p8r (JinvMrow, Jrow, infom, infom, row__,row__); - if (orgBodyB) - { - m_A.multiplyAdd2_p8r (JinvMrow + 8*(size_t)infom, Jrow + 8*(size_t)infom, infom, infom, row__,row__); - } - row__ += infom; - jj++; - } - } - } - - if (1) - { - // add cfm to the diagonal of m_A - for ( int i=0; i<m_A.rows(); ++i) - { - m_A.setElem(i,i,m_A(i,i)+ infoGlobal.m_globalCfm/ infoGlobal.m_timeStep); - } - } - - ///fill the upper triangle of the matrix, to make it symmetric - { - BT_PROFILE("fill the upper triangle "); - m_A.copyLowerToUpperTriangle(); - } - - { - BT_PROFILE("resize/init x"); - m_x.resize(numConstraintRows); - m_xSplit.resize(numConstraintRows); - - if (infoGlobal.m_solverMode&SOLVER_USE_WARMSTARTING) - { - for (int i=0;i<m_allConstraintPtrArray.size();i++) - { - const btSolverConstraint& c = *m_allConstraintPtrArray[i]; - m_x[i]=c.m_appliedImpulse; - m_xSplit[i] = c.m_appliedPushImpulse; - } - } else - { - m_x.setZero(); - m_xSplit.setZero(); - } - } - -} - -void btMLCPSolver::createMLCP(const btContactSolverInfo& infoGlobal) -{ - int numBodies = this->m_tmpSolverBodyPool.size(); - int numConstraintRows = m_allConstraintPtrArray.size(); - - m_b.resize(numConstraintRows); - if (infoGlobal.m_splitImpulse) - m_bSplit.resize(numConstraintRows); - - m_bSplit.setZero(); - m_b.setZero(); - - for (int i=0;i<numConstraintRows ;i++) - { - if (m_allConstraintPtrArray[i]->m_jacDiagABInv) - { - m_b[i]=m_allConstraintPtrArray[i]->m_rhs/m_allConstraintPtrArray[i]->m_jacDiagABInv; - if (infoGlobal.m_splitImpulse) - m_bSplit[i] = m_allConstraintPtrArray[i]->m_rhsPenetration/m_allConstraintPtrArray[i]->m_jacDiagABInv; - } - } - - btMatrixXu& Minv = m_scratchMInv; - Minv.resize(6*numBodies,6*numBodies); - Minv.setZero(); - for (int i=0;i<numBodies;i++) - { - const btSolverBody& rb = m_tmpSolverBodyPool[i]; - const btVector3& invMass = rb.m_invMass; - setElem(Minv,i*6+0,i*6+0,invMass[0]); - setElem(Minv,i*6+1,i*6+1,invMass[1]); - setElem(Minv,i*6+2,i*6+2,invMass[2]); - btRigidBody* orgBody = m_tmpSolverBodyPool[i].m_originalBody; - - for (int r=0;r<3;r++) - for (int c=0;c<3;c++) - setElem(Minv,i*6+3+r,i*6+3+c,orgBody? orgBody->getInvInertiaTensorWorld()[r][c] : 0); - } - - btMatrixXu& J = m_scratchJ; - J.resize(numConstraintRows,6*numBodies); - J.setZero(); - - m_lo.resize(numConstraintRows); - m_hi.resize(numConstraintRows); - - for (int i=0;i<numConstraintRows;i++) - { - - m_lo[i] = m_allConstraintPtrArray[i]->m_lowerLimit; - m_hi[i] = m_allConstraintPtrArray[i]->m_upperLimit; - - int bodyIndex0 = m_allConstraintPtrArray[i]->m_solverBodyIdA; - int bodyIndex1 = m_allConstraintPtrArray[i]->m_solverBodyIdB; - if (m_tmpSolverBodyPool[bodyIndex0].m_originalBody) - { - setElem(J,i,6*bodyIndex0+0,m_allConstraintPtrArray[i]->m_contactNormal1[0]); - setElem(J,i,6*bodyIndex0+1,m_allConstraintPtrArray[i]->m_contactNormal1[1]); - setElem(J,i,6*bodyIndex0+2,m_allConstraintPtrArray[i]->m_contactNormal1[2]); - setElem(J,i,6*bodyIndex0+3,m_allConstraintPtrArray[i]->m_relpos1CrossNormal[0]); - setElem(J,i,6*bodyIndex0+4,m_allConstraintPtrArray[i]->m_relpos1CrossNormal[1]); - setElem(J,i,6*bodyIndex0+5,m_allConstraintPtrArray[i]->m_relpos1CrossNormal[2]); - } - if (m_tmpSolverBodyPool[bodyIndex1].m_originalBody) - { - setElem(J,i,6*bodyIndex1+0,m_allConstraintPtrArray[i]->m_contactNormal2[0]); - setElem(J,i,6*bodyIndex1+1,m_allConstraintPtrArray[i]->m_contactNormal2[1]); - setElem(J,i,6*bodyIndex1+2,m_allConstraintPtrArray[i]->m_contactNormal2[2]); - setElem(J,i,6*bodyIndex1+3,m_allConstraintPtrArray[i]->m_relpos2CrossNormal[0]); - setElem(J,i,6*bodyIndex1+4,m_allConstraintPtrArray[i]->m_relpos2CrossNormal[1]); - setElem(J,i,6*bodyIndex1+5,m_allConstraintPtrArray[i]->m_relpos2CrossNormal[2]); - } - } - - btMatrixXu& J_transpose = m_scratchJTranspose; - J_transpose= J.transpose(); - - btMatrixXu& tmp = m_scratchTmp; - - { - { - BT_PROFILE("J*Minv"); - tmp = J*Minv; - - } - { - BT_PROFILE("J*tmp"); - m_A = tmp*J_transpose; - } - } - - if (1) - { - // add cfm to the diagonal of m_A - for ( int i=0; i<m_A.rows(); ++i) - { - m_A.setElem(i,i,m_A(i,i)+ infoGlobal.m_globalCfm / infoGlobal.m_timeStep); - } - } - - m_x.resize(numConstraintRows); - if (infoGlobal.m_splitImpulse) - m_xSplit.resize(numConstraintRows); -// m_x.setZero(); - - for (int i=0;i<m_allConstraintPtrArray.size();i++) - { - const btSolverConstraint& c = *m_allConstraintPtrArray[i]; - m_x[i]=c.m_appliedImpulse; - if (infoGlobal.m_splitImpulse) - m_xSplit[i] = c.m_appliedPushImpulse; - } - -} - - -btScalar btMLCPSolver::solveGroupCacheFriendlyIterations(btCollisionObject** bodies ,int numBodies,btPersistentManifold** manifoldPtr, int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* debugDrawer) -{ - bool result = true; - { - BT_PROFILE("solveMLCP"); -// printf("m_A(%d,%d)\n", m_A.rows(),m_A.cols()); - result = solveMLCP(infoGlobal); - } - - //check if solution is valid, and otherwise fallback to btSequentialImpulseConstraintSolver::solveGroupCacheFriendlyIterations - if (result) - { - BT_PROFILE("process MLCP results"); - for (int i=0;i<m_allConstraintPtrArray.size();i++) - { - { - btSolverConstraint& c = *m_allConstraintPtrArray[i]; - int sbA = c.m_solverBodyIdA; - int sbB = c.m_solverBodyIdB; - //btRigidBody* orgBodyA = m_tmpSolverBodyPool[sbA].m_originalBody; - // btRigidBody* orgBodyB = m_tmpSolverBodyPool[sbB].m_originalBody; - - btSolverBody& solverBodyA = m_tmpSolverBodyPool[sbA]; - btSolverBody& solverBodyB = m_tmpSolverBodyPool[sbB]; - - { - btScalar deltaImpulse = m_x[i]-c.m_appliedImpulse; - c.m_appliedImpulse = m_x[i]; - solverBodyA.internalApplyImpulse(c.m_contactNormal1*solverBodyA.internalGetInvMass(),c.m_angularComponentA,deltaImpulse); - solverBodyB.internalApplyImpulse(c.m_contactNormal2*solverBodyB.internalGetInvMass(),c.m_angularComponentB,deltaImpulse); - } - - if (infoGlobal.m_splitImpulse) - { - btScalar deltaImpulse = m_xSplit[i] - c.m_appliedPushImpulse; - solverBodyA.internalApplyPushImpulse(c.m_contactNormal1*solverBodyA.internalGetInvMass(),c.m_angularComponentA,deltaImpulse); - solverBodyB.internalApplyPushImpulse(c.m_contactNormal2*solverBodyB.internalGetInvMass(),c.m_angularComponentB,deltaImpulse); - c.m_appliedPushImpulse = m_xSplit[i]; - } - - } - } - } - else - { - // printf("m_fallback = %d\n",m_fallback); - m_fallback++; - btSequentialImpulseConstraintSolver::solveGroupCacheFriendlyIterations(bodies ,numBodies,manifoldPtr, numManifolds,constraints,numConstraints,infoGlobal,debugDrawer); - } - - return 0.f; -} - - diff --git a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btMLCPSolver.h b/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btMLCPSolver.h deleted file mode 100644 index 26b482ddc1..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btMLCPSolver.h +++ /dev/null @@ -1,94 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ -///original version written by Erwin Coumans, October 2013 - -#ifndef BT_MLCP_SOLVER_H -#define BT_MLCP_SOLVER_H - -#include "BulletDynamics/ConstraintSolver/btSequentialImpulseConstraintSolver.h" -#include "LinearMath/btMatrixX.h" -#include "BulletDynamics/MLCPSolvers/btMLCPSolverInterface.h" - -class btMLCPSolver : public btSequentialImpulseConstraintSolver -{ - -protected: - - btMatrixXu m_A; - btVectorXu m_b; - btVectorXu m_x; - btVectorXu m_lo; - btVectorXu m_hi; - - ///when using 'split impulse' we solve two separate (M)LCPs - btVectorXu m_bSplit; - btVectorXu m_xSplit; - btVectorXu m_bSplit1; - btVectorXu m_xSplit2; - - btAlignedObjectArray<int> m_limitDependencies; - btAlignedObjectArray<btSolverConstraint*> m_allConstraintPtrArray; - btMLCPSolverInterface* m_solver; - int m_fallback; - - /// The following scratch variables are not stateful -- contents are cleared prior to each use. - /// They are only cached here to avoid extra memory allocations and deallocations and to ensure - /// that multiple instances of the solver can be run in parallel. - btMatrixXu m_scratchJ3; - btMatrixXu m_scratchJInvM3; - btAlignedObjectArray<int> m_scratchOfs; - btMatrixXu m_scratchMInv; - btMatrixXu m_scratchJ; - btMatrixXu m_scratchJTranspose; - btMatrixXu m_scratchTmp; - - virtual btScalar solveGroupCacheFriendlySetup(btCollisionObject** bodies, int numBodies, btPersistentManifold** manifoldPtr, int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* debugDrawer); - virtual btScalar solveGroupCacheFriendlyIterations(btCollisionObject** bodies ,int numBodies,btPersistentManifold** manifoldPtr, int numManifolds,btTypedConstraint** constraints,int numConstraints,const btContactSolverInfo& infoGlobal,btIDebugDraw* debugDrawer); - - - virtual void createMLCP(const btContactSolverInfo& infoGlobal); - virtual void createMLCPFast(const btContactSolverInfo& infoGlobal); - - //return true is it solves the problem successfully - virtual bool solveMLCP(const btContactSolverInfo& infoGlobal); - -public: - - btMLCPSolver( btMLCPSolverInterface* solver); - virtual ~btMLCPSolver(); - - void setMLCPSolver(btMLCPSolverInterface* solver) - { - m_solver = solver; - } - - int getNumFallbacks() const - { - return m_fallback; - } - void setNumFallbacks(int num) - { - m_fallback = num; - } - - virtual btConstraintSolverType getSolverType() const - { - return BT_MLCP_SOLVER; - } - -}; - - -#endif //BT_MLCP_SOLVER_H diff --git a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btMLCPSolverInterface.h b/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btMLCPSolverInterface.h deleted file mode 100644 index 25bb3f6d32..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btMLCPSolverInterface.h +++ /dev/null @@ -1,33 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ -///original version written by Erwin Coumans, October 2013 - -#ifndef BT_MLCP_SOLVER_INTERFACE_H -#define BT_MLCP_SOLVER_INTERFACE_H - -#include "LinearMath/btMatrixX.h" - -class btMLCPSolverInterface -{ -public: - virtual ~btMLCPSolverInterface() - { - } - - //return true is it solves the problem successfully - virtual bool solveMLCP(const btMatrixXu & A, const btVectorXu & b, btVectorXu& x, const btVectorXu & lo,const btVectorXu & hi,const btAlignedObjectArray<int>& limitDependency, int numIterations, bool useSparsity = true)=0; -}; - -#endif //BT_MLCP_SOLVER_INTERFACE_H diff --git a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btPATHSolver.h b/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btPATHSolver.h deleted file mode 100644 index 9ec31a6d4e..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btPATHSolver.h +++ /dev/null @@ -1,151 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ -///original version written by Erwin Coumans, October 2013 - - -#ifndef BT_PATH_SOLVER_H -#define BT_PATH_SOLVER_H - -//#define BT_USE_PATH -#ifdef BT_USE_PATH - -extern "C" { -#include "PATH/SimpleLCP.h" -#include "PATH/License.h" -#include "PATH/Error_Interface.h" -}; - void __stdcall MyError(Void *data, Char *msg) -{ - printf("Path Error: %s\n",msg); -} - void __stdcall MyWarning(Void *data, Char *msg) -{ - printf("Path Warning: %s\n",msg); -} - -Error_Interface e; - - - -#include "btMLCPSolverInterface.h" -#include "Dantzig/lcp.h" - -class btPathSolver : public btMLCPSolverInterface -{ -public: - - btPathSolver() - { - License_SetString("2069810742&Courtesy_License&&&USR&2013&14_12_2011&1000&PATH&GEN&31_12_2013&0_0_0&0&0_0"); - e.error_data = 0; - e.warning = MyWarning; - e.error = MyError; - Error_SetInterface(&e); - } - - - virtual bool solveMLCP(const btMatrixXu & A, const btVectorXu & b, btVectorXu& x, const btVectorXu & lo,const btVectorXu & hi,const btAlignedObjectArray<int>& limitDependency, int numIterations, bool useSparsity = true) - { - MCP_Termination status; - - - int numVariables = b.rows(); - if (0==numVariables) - return true; - - /* - variables - the number of variables in the problem - - m_nnz - the number of nonzeros in the M matrix - - m_i - a vector of size m_nnz containing the row indices for M - - m_j - a vector of size m_nnz containing the column indices for M - - m_ij - a vector of size m_nnz containing the data for M - - q - a vector of size variables - - lb - a vector of size variables containing the lower bounds on x - - ub - a vector of size variables containing the upper bounds on x - */ - btAlignedObjectArray<double> values; - btAlignedObjectArray<int> rowIndices; - btAlignedObjectArray<int> colIndices; - - for (int i=0;i<A.rows();i++) - { - for (int j=0;j<A.cols();j++) - { - if (A(i,j)!=0.f) - { - //add 1, because Path starts at 1, instead of 0 - rowIndices.push_back(i+1); - colIndices.push_back(j+1); - values.push_back(A(i,j)); - } - } - } - int numNonZero = rowIndices.size(); - btAlignedObjectArray<double> zResult; - zResult.resize(numVariables); - btAlignedObjectArray<double> rhs; - btAlignedObjectArray<double> upperBounds; - btAlignedObjectArray<double> lowerBounds; - for (int i=0;i<numVariables;i++) - { - upperBounds.push_back(hi[i]); - lowerBounds.push_back(lo[i]); - rhs.push_back(-b[i]); - } - - - SimpleLCP(numVariables,numNonZero,&rowIndices[0],&colIndices[0],&values[0],&rhs[0],&lowerBounds[0],&upperBounds[0], &status, &zResult[0]); - - if (status != MCP_Solved) - { - static const char* gReturnMsgs[] = { - "Invalid return", - "MCP_Solved: The problem was solved", - "MCP_NoProgress: A stationary point was found", - "MCP_MajorIterationLimit: Major iteration limit met", - "MCP_MinorIterationLimit: Cumulative minor iteration limit met", - "MCP_TimeLimit: Ran out of time", - "MCP_UserInterrupt: Control-C, typically", - "MCP_BoundError: Problem has a bound error", - "MCP_DomainError: Could not find starting point", - "MCP_Infeasible: Problem has no solution", - "MCP_Error: An error occurred within the code", - "MCP_LicenseError: License could not be found", - "MCP_OK" - }; - - printf("ERROR: The PATH MCP solver failed: %s\n", gReturnMsgs[(unsigned int)status]);// << std::endl; - printf("using Projected Gauss Seidel fallback\n"); - - return false; - } else - { - for (int i=0;i<numVariables;i++) - { - x[i] = zResult[i]; - //check for #NAN - if (x[i] != zResult[i]) - return false; - } - return true; - - } - - } -}; - -#endif //BT_USE_PATH - - -#endif //BT_PATH_SOLVER_H diff --git a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btSolveProjectedGaussSeidel.h b/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btSolveProjectedGaussSeidel.h deleted file mode 100644 index c0b40ffd9f..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/MLCPSolvers/btSolveProjectedGaussSeidel.h +++ /dev/null @@ -1,110 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2013 Erwin Coumans http://bulletphysics.org - -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. -*/ -///original version written by Erwin Coumans, October 2013 - -#ifndef BT_SOLVE_PROJECTED_GAUSS_SEIDEL_H -#define BT_SOLVE_PROJECTED_GAUSS_SEIDEL_H - - -#include "btMLCPSolverInterface.h" - -///This solver is mainly for debug/learning purposes: it is functionally equivalent to the btSequentialImpulseConstraintSolver solver, but much slower (it builds the full LCP matrix) -class btSolveProjectedGaussSeidel : public btMLCPSolverInterface -{ - -public: - - btScalar m_leastSquaresResidualThreshold; - btScalar m_leastSquaresResidual; - - btSolveProjectedGaussSeidel() - :m_leastSquaresResidualThreshold(0), - m_leastSquaresResidual(0) - { - } - - virtual bool solveMLCP(const btMatrixXu & A, const btVectorXu & b, btVectorXu& x, const btVectorXu & lo,const btVectorXu & hi,const btAlignedObjectArray<int>& limitDependency, int numIterations, bool useSparsity = true) - { - if (!A.rows()) - return true; - //the A matrix is sparse, so compute the non-zero elements - A.rowComputeNonZeroElements(); - - //A is a m-n matrix, m rows, n columns - btAssert(A.rows() == b.rows()); - - int i, j, numRows = A.rows(); - - btScalar delta; - - for (int k = 0; k <numIterations; k++) - { - m_leastSquaresResidual = 0.f; - for (i = 0; i <numRows; i++) - { - delta = 0.0f; - if (useSparsity) - { - for (int h=0;h<A.m_rowNonZeroElements1[i].size();h++) - { - int j = A.m_rowNonZeroElements1[i][h]; - if (j != i)//skip main diagonal - { - delta += A(i,j) * x[j]; - } - } - } else - { - for (j = 0; j <i; j++) - delta += A(i,j) * x[j]; - for (j = i+1; j<numRows; j++) - delta += A(i,j) * x[j]; - } - - btScalar aDiag = A(i,i); - btScalar xOld = x[i]; - x [i] = (b [i] - delta) / aDiag; - btScalar s = 1.f; - - if (limitDependency[i]>=0) - { - s = x[limitDependency[i]]; - if (s<0) - s=1; - } - - if (x[i]<lo[i]*s) - x[i]=lo[i]*s; - if (x[i]>hi[i]*s) - x[i]=hi[i]*s; - btScalar diff = x[i] - xOld; - m_leastSquaresResidual += diff*diff; - } - - btScalar eps = m_leastSquaresResidualThreshold; - if ((m_leastSquaresResidual < eps) || (k >=(numIterations-1))) - { -#ifdef VERBOSE_PRINTF_RESIDUAL - printf("totalLenSqr = %f at iteration #%d\n", m_leastSquaresResidual,k); -#endif - break; - } - } - return true; - } - -}; - -#endif //BT_SOLVE_PROJECTED_GAUSS_SEIDEL_H diff --git a/thirdparty/bullet/src/BulletDynamics/Vehicle/btRaycastVehicle.cpp b/thirdparty/bullet/src/BulletDynamics/Vehicle/btRaycastVehicle.cpp deleted file mode 100644 index a7b1688469..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Vehicle/btRaycastVehicle.cpp +++ /dev/null @@ -1,772 +0,0 @@ -/* - * Copyright (c) 2005 Erwin Coumans http://continuousphysics.com/Bullet/ - * - * Permission to use, copy, modify, distribute and sell this software - * and its documentation for any purpose is hereby granted without fee, - * provided that the above copyright notice appear in all copies. - * Erwin Coumans makes no representations about the suitability - * of this software for any purpose. - * It is provided "as is" without express or implied warranty. -*/ - -#include "LinearMath/btVector3.h" -#include "btRaycastVehicle.h" - -#include "BulletDynamics/ConstraintSolver/btSolve2LinearConstraint.h" -#include "BulletDynamics/ConstraintSolver/btJacobianEntry.h" -#include "LinearMath/btQuaternion.h" -#include "BulletDynamics/Dynamics/btDynamicsWorld.h" -#include "btVehicleRaycaster.h" -#include "btWheelInfo.h" -#include "LinearMath/btMinMax.h" -#include "LinearMath/btIDebugDraw.h" -#include "BulletDynamics/ConstraintSolver/btContactConstraint.h" - -#define ROLLING_INFLUENCE_FIX - - -btRigidBody& btActionInterface::getFixedBody() -{ - static btRigidBody s_fixed(0, 0,0); - s_fixed.setMassProps(btScalar(0.),btVector3(btScalar(0.),btScalar(0.),btScalar(0.))); - return s_fixed; -} - -btRaycastVehicle::btRaycastVehicle(const btVehicleTuning& tuning,btRigidBody* chassis, btVehicleRaycaster* raycaster ) -:m_vehicleRaycaster(raycaster), -m_pitchControl(btScalar(0.)) -{ - m_chassisBody = chassis; - m_indexRightAxis = 0; - m_indexUpAxis = 2; - m_indexForwardAxis = 1; - defaultInit(tuning); -} - - -void btRaycastVehicle::defaultInit(const btVehicleTuning& tuning) -{ - (void)tuning; - m_currentVehicleSpeedKmHour = btScalar(0.); - m_steeringValue = btScalar(0.); - -} - - - -btRaycastVehicle::~btRaycastVehicle() -{ -} - - -// -// basically most of the code is general for 2 or 4 wheel vehicles, but some of it needs to be reviewed -// -btWheelInfo& btRaycastVehicle::addWheel( const btVector3& connectionPointCS, const btVector3& wheelDirectionCS0,const btVector3& wheelAxleCS, btScalar suspensionRestLength, btScalar wheelRadius,const btVehicleTuning& tuning, bool isFrontWheel) -{ - - btWheelInfoConstructionInfo ci; - - ci.m_chassisConnectionCS = connectionPointCS; - ci.m_wheelDirectionCS = wheelDirectionCS0; - ci.m_wheelAxleCS = wheelAxleCS; - ci.m_suspensionRestLength = suspensionRestLength; - ci.m_wheelRadius = wheelRadius; - ci.m_suspensionStiffness = tuning.m_suspensionStiffness; - ci.m_wheelsDampingCompression = tuning.m_suspensionCompression; - ci.m_wheelsDampingRelaxation = tuning.m_suspensionDamping; - ci.m_frictionSlip = tuning.m_frictionSlip; - ci.m_bIsFrontWheel = isFrontWheel; - ci.m_maxSuspensionTravelCm = tuning.m_maxSuspensionTravelCm; - ci.m_maxSuspensionForce = tuning.m_maxSuspensionForce; - - m_wheelInfo.push_back( btWheelInfo(ci)); - - btWheelInfo& wheel = m_wheelInfo[getNumWheels()-1]; - - updateWheelTransformsWS( wheel , false ); - updateWheelTransform(getNumWheels()-1,false); - return wheel; -} - - - - -const btTransform& btRaycastVehicle::getWheelTransformWS( int wheelIndex ) const -{ - btAssert(wheelIndex < getNumWheels()); - const btWheelInfo& wheel = m_wheelInfo[wheelIndex]; - return wheel.m_worldTransform; - -} - -void btRaycastVehicle::updateWheelTransform( int wheelIndex , bool interpolatedTransform) -{ - - btWheelInfo& wheel = m_wheelInfo[ wheelIndex ]; - updateWheelTransformsWS(wheel,interpolatedTransform); - btVector3 up = -wheel.m_raycastInfo.m_wheelDirectionWS; - const btVector3& right = wheel.m_raycastInfo.m_wheelAxleWS; - btVector3 fwd = up.cross(right); - fwd = fwd.normalize(); -// up = right.cross(fwd); -// up.normalize(); - - //rotate around steering over de wheelAxleWS - btScalar steering = wheel.m_steering; - - btQuaternion steeringOrn(up,steering);//wheel.m_steering); - btMatrix3x3 steeringMat(steeringOrn); - - btQuaternion rotatingOrn(right,-wheel.m_rotation); - btMatrix3x3 rotatingMat(rotatingOrn); - - btMatrix3x3 basis2( - right[0],fwd[0],up[0], - right[1],fwd[1],up[1], - right[2],fwd[2],up[2] - ); - - wheel.m_worldTransform.setBasis(steeringMat * rotatingMat * basis2); - wheel.m_worldTransform.setOrigin( - wheel.m_raycastInfo.m_hardPointWS + wheel.m_raycastInfo.m_wheelDirectionWS * wheel.m_raycastInfo.m_suspensionLength - ); -} - -void btRaycastVehicle::resetSuspension() -{ - - int i; - for (i=0;i<m_wheelInfo.size(); i++) - { - btWheelInfo& wheel = m_wheelInfo[i]; - wheel.m_raycastInfo.m_suspensionLength = wheel.getSuspensionRestLength(); - wheel.m_suspensionRelativeVelocity = btScalar(0.0); - - wheel.m_raycastInfo.m_contactNormalWS = - wheel.m_raycastInfo.m_wheelDirectionWS; - //wheel_info.setContactFriction(btScalar(0.0)); - wheel.m_clippedInvContactDotSuspension = btScalar(1.0); - } -} - -void btRaycastVehicle::updateWheelTransformsWS(btWheelInfo& wheel , bool interpolatedTransform) -{ - wheel.m_raycastInfo.m_isInContact = false; - - btTransform chassisTrans = getChassisWorldTransform(); - if (interpolatedTransform && (getRigidBody()->getMotionState())) - { - getRigidBody()->getMotionState()->getWorldTransform(chassisTrans); - } - - wheel.m_raycastInfo.m_hardPointWS = chassisTrans( wheel.m_chassisConnectionPointCS ); - wheel.m_raycastInfo.m_wheelDirectionWS = chassisTrans.getBasis() * wheel.m_wheelDirectionCS ; - wheel.m_raycastInfo.m_wheelAxleWS = chassisTrans.getBasis() * wheel.m_wheelAxleCS; -} - -btScalar btRaycastVehicle::rayCast(btWheelInfo& wheel) -{ - updateWheelTransformsWS( wheel,false); - - - btScalar depth = -1; - - btScalar raylen = wheel.getSuspensionRestLength()+wheel.m_wheelsRadius; - - btVector3 rayvector = wheel.m_raycastInfo.m_wheelDirectionWS * (raylen); - const btVector3& source = wheel.m_raycastInfo.m_hardPointWS; - wheel.m_raycastInfo.m_contactPointWS = source + rayvector; - const btVector3& target = wheel.m_raycastInfo.m_contactPointWS; - - btScalar param = btScalar(0.); - - btVehicleRaycaster::btVehicleRaycasterResult rayResults; - - btAssert(m_vehicleRaycaster); - - void* object = m_vehicleRaycaster->castRay(source,target,rayResults); - - wheel.m_raycastInfo.m_groundObject = 0; - - if (object) - { - param = rayResults.m_distFraction; - depth = raylen * rayResults.m_distFraction; - wheel.m_raycastInfo.m_contactNormalWS = rayResults.m_hitNormalInWorld; - wheel.m_raycastInfo.m_isInContact = true; - - wheel.m_raycastInfo.m_groundObject = &getFixedBody();///@todo for driving on dynamic/movable objects!; - //wheel.m_raycastInfo.m_groundObject = object; - - - btScalar hitDistance = param*raylen; - wheel.m_raycastInfo.m_suspensionLength = hitDistance - wheel.m_wheelsRadius; - //clamp on max suspension travel - - btScalar minSuspensionLength = wheel.getSuspensionRestLength() - wheel.m_maxSuspensionTravelCm*btScalar(0.01); - btScalar maxSuspensionLength = wheel.getSuspensionRestLength()+ wheel.m_maxSuspensionTravelCm*btScalar(0.01); - if (wheel.m_raycastInfo.m_suspensionLength < minSuspensionLength) - { - wheel.m_raycastInfo.m_suspensionLength = minSuspensionLength; - } - if (wheel.m_raycastInfo.m_suspensionLength > maxSuspensionLength) - { - wheel.m_raycastInfo.m_suspensionLength = maxSuspensionLength; - } - - wheel.m_raycastInfo.m_contactPointWS = rayResults.m_hitPointInWorld; - - btScalar denominator= wheel.m_raycastInfo.m_contactNormalWS.dot( wheel.m_raycastInfo.m_wheelDirectionWS ); - - btVector3 chassis_velocity_at_contactPoint; - btVector3 relpos = wheel.m_raycastInfo.m_contactPointWS-getRigidBody()->getCenterOfMassPosition(); - - chassis_velocity_at_contactPoint = getRigidBody()->getVelocityInLocalPoint(relpos); - - btScalar projVel = wheel.m_raycastInfo.m_contactNormalWS.dot( chassis_velocity_at_contactPoint ); - - if ( denominator >= btScalar(-0.1)) - { - wheel.m_suspensionRelativeVelocity = btScalar(0.0); - wheel.m_clippedInvContactDotSuspension = btScalar(1.0) / btScalar(0.1); - } - else - { - btScalar inv = btScalar(-1.) / denominator; - wheel.m_suspensionRelativeVelocity = projVel * inv; - wheel.m_clippedInvContactDotSuspension = inv; - } - - } else - { - //put wheel info as in rest position - wheel.m_raycastInfo.m_suspensionLength = wheel.getSuspensionRestLength(); - wheel.m_suspensionRelativeVelocity = btScalar(0.0); - wheel.m_raycastInfo.m_contactNormalWS = - wheel.m_raycastInfo.m_wheelDirectionWS; - wheel.m_clippedInvContactDotSuspension = btScalar(1.0); - } - - return depth; -} - - -const btTransform& btRaycastVehicle::getChassisWorldTransform() const -{ - /*if (getRigidBody()->getMotionState()) - { - btTransform chassisWorldTrans; - getRigidBody()->getMotionState()->getWorldTransform(chassisWorldTrans); - return chassisWorldTrans; - } - */ - - - return getRigidBody()->getCenterOfMassTransform(); -} - - -void btRaycastVehicle::updateVehicle( btScalar step ) -{ - { - for (int i=0;i<getNumWheels();i++) - { - updateWheelTransform(i,false); - } - } - - - m_currentVehicleSpeedKmHour = btScalar(3.6) * getRigidBody()->getLinearVelocity().length(); - - const btTransform& chassisTrans = getChassisWorldTransform(); - - btVector3 forwardW ( - chassisTrans.getBasis()[0][m_indexForwardAxis], - chassisTrans.getBasis()[1][m_indexForwardAxis], - chassisTrans.getBasis()[2][m_indexForwardAxis]); - - if (forwardW.dot(getRigidBody()->getLinearVelocity()) < btScalar(0.)) - { - m_currentVehicleSpeedKmHour *= btScalar(-1.); - } - - // - // simulate suspension - // - - int i=0; - for (i=0;i<m_wheelInfo.size();i++) - { - //btScalar depth; - //depth = - rayCast( m_wheelInfo[i]); - } - - updateSuspension(step); - - - for (i=0;i<m_wheelInfo.size();i++) - { - //apply suspension force - btWheelInfo& wheel = m_wheelInfo[i]; - - btScalar suspensionForce = wheel.m_wheelsSuspensionForce; - - if (suspensionForce > wheel.m_maxSuspensionForce) - { - suspensionForce = wheel.m_maxSuspensionForce; - } - btVector3 impulse = wheel.m_raycastInfo.m_contactNormalWS * suspensionForce * step; - btVector3 relpos = wheel.m_raycastInfo.m_contactPointWS - getRigidBody()->getCenterOfMassPosition(); - - getRigidBody()->applyImpulse(impulse, relpos); - - } - - - - updateFriction( step); - - - for (i=0;i<m_wheelInfo.size();i++) - { - btWheelInfo& wheel = m_wheelInfo[i]; - btVector3 relpos = wheel.m_raycastInfo.m_hardPointWS - getRigidBody()->getCenterOfMassPosition(); - btVector3 vel = getRigidBody()->getVelocityInLocalPoint( relpos ); - - if (wheel.m_raycastInfo.m_isInContact) - { - const btTransform& chassisWorldTransform = getChassisWorldTransform(); - - btVector3 fwd ( - chassisWorldTransform.getBasis()[0][m_indexForwardAxis], - chassisWorldTransform.getBasis()[1][m_indexForwardAxis], - chassisWorldTransform.getBasis()[2][m_indexForwardAxis]); - - btScalar proj = fwd.dot(wheel.m_raycastInfo.m_contactNormalWS); - fwd -= wheel.m_raycastInfo.m_contactNormalWS * proj; - - btScalar proj2 = fwd.dot(vel); - - wheel.m_deltaRotation = (proj2 * step) / (wheel.m_wheelsRadius); - wheel.m_rotation += wheel.m_deltaRotation; - - } else - { - wheel.m_rotation += wheel.m_deltaRotation; - } - - wheel.m_deltaRotation *= btScalar(0.99);//damping of rotation when not in contact - - } - - - -} - - -void btRaycastVehicle::setSteeringValue(btScalar steering,int wheel) -{ - btAssert(wheel>=0 && wheel < getNumWheels()); - - btWheelInfo& wheelInfo = getWheelInfo(wheel); - wheelInfo.m_steering = steering; -} - - - -btScalar btRaycastVehicle::getSteeringValue(int wheel) const -{ - return getWheelInfo(wheel).m_steering; -} - - -void btRaycastVehicle::applyEngineForce(btScalar force, int wheel) -{ - btAssert(wheel>=0 && wheel < getNumWheels()); - btWheelInfo& wheelInfo = getWheelInfo(wheel); - wheelInfo.m_engineForce = force; -} - - -const btWheelInfo& btRaycastVehicle::getWheelInfo(int index) const -{ - btAssert((index >= 0) && (index < getNumWheels())); - - return m_wheelInfo[index]; -} - -btWheelInfo& btRaycastVehicle::getWheelInfo(int index) -{ - btAssert((index >= 0) && (index < getNumWheels())); - - return m_wheelInfo[index]; -} - -void btRaycastVehicle::setBrake(btScalar brake,int wheelIndex) -{ - btAssert((wheelIndex >= 0) && (wheelIndex < getNumWheels())); - getWheelInfo(wheelIndex).m_brake = brake; -} - - -void btRaycastVehicle::updateSuspension(btScalar deltaTime) -{ - (void)deltaTime; - - btScalar chassisMass = btScalar(1.) / m_chassisBody->getInvMass(); - - for (int w_it=0; w_it<getNumWheels(); w_it++) - { - btWheelInfo &wheel_info = m_wheelInfo[w_it]; - - if ( wheel_info.m_raycastInfo.m_isInContact ) - { - btScalar force; - // Spring - { - btScalar susp_length = wheel_info.getSuspensionRestLength(); - btScalar current_length = wheel_info.m_raycastInfo.m_suspensionLength; - - btScalar length_diff = (susp_length - current_length); - - force = wheel_info.m_suspensionStiffness - * length_diff * wheel_info.m_clippedInvContactDotSuspension; - } - - // Damper - { - btScalar projected_rel_vel = wheel_info.m_suspensionRelativeVelocity; - { - btScalar susp_damping; - if ( projected_rel_vel < btScalar(0.0) ) - { - susp_damping = wheel_info.m_wheelsDampingCompression; - } - else - { - susp_damping = wheel_info.m_wheelsDampingRelaxation; - } - force -= susp_damping * projected_rel_vel; - } - } - - // RESULT - wheel_info.m_wheelsSuspensionForce = force * chassisMass; - if (wheel_info.m_wheelsSuspensionForce < btScalar(0.)) - { - wheel_info.m_wheelsSuspensionForce = btScalar(0.); - } - } - else - { - wheel_info.m_wheelsSuspensionForce = btScalar(0.0); - } - } - -} - - -struct btWheelContactPoint -{ - btRigidBody* m_body0; - btRigidBody* m_body1; - btVector3 m_frictionPositionWorld; - btVector3 m_frictionDirectionWorld; - btScalar m_jacDiagABInv; - btScalar m_maxImpulse; - - - btWheelContactPoint(btRigidBody* body0,btRigidBody* body1,const btVector3& frictionPosWorld,const btVector3& frictionDirectionWorld, btScalar maxImpulse) - :m_body0(body0), - m_body1(body1), - m_frictionPositionWorld(frictionPosWorld), - m_frictionDirectionWorld(frictionDirectionWorld), - m_maxImpulse(maxImpulse) - { - btScalar denom0 = body0->computeImpulseDenominator(frictionPosWorld,frictionDirectionWorld); - btScalar denom1 = body1->computeImpulseDenominator(frictionPosWorld,frictionDirectionWorld); - btScalar relaxation = 1.f; - m_jacDiagABInv = relaxation/(denom0+denom1); - } - - - -}; - -btScalar calcRollingFriction(btWheelContactPoint& contactPoint); -btScalar calcRollingFriction(btWheelContactPoint& contactPoint) -{ - - btScalar j1=0.f; - - const btVector3& contactPosWorld = contactPoint.m_frictionPositionWorld; - - btVector3 rel_pos1 = contactPosWorld - contactPoint.m_body0->getCenterOfMassPosition(); - btVector3 rel_pos2 = contactPosWorld - contactPoint.m_body1->getCenterOfMassPosition(); - - btScalar maxImpulse = contactPoint.m_maxImpulse; - - btVector3 vel1 = contactPoint.m_body0->getVelocityInLocalPoint(rel_pos1); - btVector3 vel2 = contactPoint.m_body1->getVelocityInLocalPoint(rel_pos2); - btVector3 vel = vel1 - vel2; - - btScalar vrel = contactPoint.m_frictionDirectionWorld.dot(vel); - - // calculate j that moves us to zero relative velocity - j1 = -vrel * contactPoint.m_jacDiagABInv; - btSetMin(j1, maxImpulse); - btSetMax(j1, -maxImpulse); - - return j1; -} - - - - -btScalar sideFrictionStiffness2 = btScalar(1.0); -void btRaycastVehicle::updateFriction(btScalar timeStep) -{ - - //calculate the impulse, so that the wheels don't move sidewards - int numWheel = getNumWheels(); - if (!numWheel) - return; - - m_forwardWS.resize(numWheel); - m_axle.resize(numWheel); - m_forwardImpulse.resize(numWheel); - m_sideImpulse.resize(numWheel); - - int numWheelsOnGround = 0; - - - //collapse all those loops into one! - for (int i=0;i<getNumWheels();i++) - { - btWheelInfo& wheelInfo = m_wheelInfo[i]; - class btRigidBody* groundObject = (class btRigidBody*) wheelInfo.m_raycastInfo.m_groundObject; - if (groundObject) - numWheelsOnGround++; - m_sideImpulse[i] = btScalar(0.); - m_forwardImpulse[i] = btScalar(0.); - - } - - { - - for (int i=0;i<getNumWheels();i++) - { - - btWheelInfo& wheelInfo = m_wheelInfo[i]; - - class btRigidBody* groundObject = (class btRigidBody*) wheelInfo.m_raycastInfo.m_groundObject; - - if (groundObject) - { - - const btTransform& wheelTrans = getWheelTransformWS( i ); - - btMatrix3x3 wheelBasis0 = wheelTrans.getBasis(); - m_axle[i] = btVector3( - wheelBasis0[0][m_indexRightAxis], - wheelBasis0[1][m_indexRightAxis], - wheelBasis0[2][m_indexRightAxis]); - - const btVector3& surfNormalWS = wheelInfo.m_raycastInfo.m_contactNormalWS; - btScalar proj = m_axle[i].dot(surfNormalWS); - m_axle[i] -= surfNormalWS * proj; - m_axle[i] = m_axle[i].normalize(); - - m_forwardWS[i] = surfNormalWS.cross(m_axle[i]); - m_forwardWS[i].normalize(); - - - resolveSingleBilateral(*m_chassisBody, wheelInfo.m_raycastInfo.m_contactPointWS, - *groundObject, wheelInfo.m_raycastInfo.m_contactPointWS, - btScalar(0.), m_axle[i],m_sideImpulse[i],timeStep); - - m_sideImpulse[i] *= sideFrictionStiffness2; - - } - - - } - } - - btScalar sideFactor = btScalar(1.); - btScalar fwdFactor = 0.5; - - bool sliding = false; - { - for (int wheel =0;wheel <getNumWheels();wheel++) - { - btWheelInfo& wheelInfo = m_wheelInfo[wheel]; - class btRigidBody* groundObject = (class btRigidBody*) wheelInfo.m_raycastInfo.m_groundObject; - - btScalar rollingFriction = 0.f; - - if (groundObject) - { - if (wheelInfo.m_engineForce != 0.f) - { - rollingFriction = wheelInfo.m_engineForce* timeStep; - } else - { - btScalar defaultRollingFrictionImpulse = 0.f; - btScalar maxImpulse = wheelInfo.m_brake ? wheelInfo.m_brake : defaultRollingFrictionImpulse; - btWheelContactPoint contactPt(m_chassisBody,groundObject,wheelInfo.m_raycastInfo.m_contactPointWS,m_forwardWS[wheel],maxImpulse); - rollingFriction = calcRollingFriction(contactPt); - } - } - - //switch between active rolling (throttle), braking and non-active rolling friction (no throttle/break) - - - - - m_forwardImpulse[wheel] = btScalar(0.); - m_wheelInfo[wheel].m_skidInfo= btScalar(1.); - - if (groundObject) - { - m_wheelInfo[wheel].m_skidInfo= btScalar(1.); - - btScalar maximp = wheelInfo.m_wheelsSuspensionForce * timeStep * wheelInfo.m_frictionSlip; - btScalar maximpSide = maximp; - - btScalar maximpSquared = maximp * maximpSide; - - - m_forwardImpulse[wheel] = rollingFriction;//wheelInfo.m_engineForce* timeStep; - - btScalar x = (m_forwardImpulse[wheel] ) * fwdFactor; - btScalar y = (m_sideImpulse[wheel] ) * sideFactor; - - btScalar impulseSquared = (x*x + y*y); - - if (impulseSquared > maximpSquared) - { - sliding = true; - - btScalar factor = maximp / btSqrt(impulseSquared); - - m_wheelInfo[wheel].m_skidInfo *= factor; - } - } - - } - } - - - - - if (sliding) - { - for (int wheel = 0;wheel < getNumWheels(); wheel++) - { - if (m_sideImpulse[wheel] != btScalar(0.)) - { - if (m_wheelInfo[wheel].m_skidInfo< btScalar(1.)) - { - m_forwardImpulse[wheel] *= m_wheelInfo[wheel].m_skidInfo; - m_sideImpulse[wheel] *= m_wheelInfo[wheel].m_skidInfo; - } - } - } - } - - // apply the impulses - { - for (int wheel = 0;wheel<getNumWheels() ; wheel++) - { - btWheelInfo& wheelInfo = m_wheelInfo[wheel]; - - btVector3 rel_pos = wheelInfo.m_raycastInfo.m_contactPointWS - - m_chassisBody->getCenterOfMassPosition(); - - if (m_forwardImpulse[wheel] != btScalar(0.)) - { - m_chassisBody->applyImpulse(m_forwardWS[wheel]*(m_forwardImpulse[wheel]),rel_pos); - } - if (m_sideImpulse[wheel] != btScalar(0.)) - { - class btRigidBody* groundObject = (class btRigidBody*) m_wheelInfo[wheel].m_raycastInfo.m_groundObject; - - btVector3 rel_pos2 = wheelInfo.m_raycastInfo.m_contactPointWS - - groundObject->getCenterOfMassPosition(); - - - btVector3 sideImp = m_axle[wheel] * m_sideImpulse[wheel]; - -#if defined ROLLING_INFLUENCE_FIX // fix. It only worked if car's up was along Y - VT. - btVector3 vChassisWorldUp = getRigidBody()->getCenterOfMassTransform().getBasis().getColumn(m_indexUpAxis); - rel_pos -= vChassisWorldUp * (vChassisWorldUp.dot(rel_pos) * (1.f-wheelInfo.m_rollInfluence)); -#else - rel_pos[m_indexUpAxis] *= wheelInfo.m_rollInfluence; -#endif - m_chassisBody->applyImpulse(sideImp,rel_pos); - - //apply friction impulse on the ground - groundObject->applyImpulse(-sideImp,rel_pos2); - } - } - } - - -} - - - -void btRaycastVehicle::debugDraw(btIDebugDraw* debugDrawer) -{ - - for (int v=0;v<this->getNumWheels();v++) - { - btVector3 wheelColor(0,1,1); - if (getWheelInfo(v).m_raycastInfo.m_isInContact) - { - wheelColor.setValue(0,0,1); - } else - { - wheelColor.setValue(1,0,1); - } - - btVector3 wheelPosWS = getWheelInfo(v).m_worldTransform.getOrigin(); - - btVector3 axle = btVector3( - getWheelInfo(v).m_worldTransform.getBasis()[0][getRightAxis()], - getWheelInfo(v).m_worldTransform.getBasis()[1][getRightAxis()], - getWheelInfo(v).m_worldTransform.getBasis()[2][getRightAxis()]); - - //debug wheels (cylinders) - debugDrawer->drawLine(wheelPosWS,wheelPosWS+axle,wheelColor); - debugDrawer->drawLine(wheelPosWS,getWheelInfo(v).m_raycastInfo.m_contactPointWS,wheelColor); - - } -} - - -void* btDefaultVehicleRaycaster::castRay(const btVector3& from,const btVector3& to, btVehicleRaycasterResult& result) -{ -// RayResultCallback& resultCallback; - - btCollisionWorld::ClosestRayResultCallback rayCallback(from,to); - - m_dynamicsWorld->rayTest(from, to, rayCallback); - - if (rayCallback.hasHit()) - { - - const btRigidBody* body = btRigidBody::upcast(rayCallback.m_collisionObject); - if (body && body->hasContactResponse()) - { - result.m_hitPointInWorld = rayCallback.m_hitPointWorld; - result.m_hitNormalInWorld = rayCallback.m_hitNormalWorld; - result.m_hitNormalInWorld.normalize(); - result.m_distFraction = rayCallback.m_closestHitFraction; - return (void*)body; - } - } - return 0; -} - diff --git a/thirdparty/bullet/src/BulletDynamics/Vehicle/btRaycastVehicle.h b/thirdparty/bullet/src/BulletDynamics/Vehicle/btRaycastVehicle.h deleted file mode 100644 index 04656b912c..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Vehicle/btRaycastVehicle.h +++ /dev/null @@ -1,234 +0,0 @@ -/* - * Copyright (c) 2005 Erwin Coumans http://continuousphysics.com/Bullet/ - * - * Permission to use, copy, modify, distribute and sell this software - * and its documentation for any purpose is hereby granted without fee, - * provided that the above copyright notice appear in all copies. - * Erwin Coumans makes no representations about the suitability - * of this software for any purpose. - * It is provided "as is" without express or implied warranty. -*/ -#ifndef BT_RAYCASTVEHICLE_H -#define BT_RAYCASTVEHICLE_H - -#include "BulletDynamics/Dynamics/btRigidBody.h" -#include "BulletDynamics/ConstraintSolver/btTypedConstraint.h" -#include "btVehicleRaycaster.h" -class btDynamicsWorld; -#include "LinearMath/btAlignedObjectArray.h" -#include "btWheelInfo.h" -#include "BulletDynamics/Dynamics/btActionInterface.h" - -//class btVehicleTuning; - -///rayCast vehicle, very special constraint that turn a rigidbody into a vehicle. -class btRaycastVehicle : public btActionInterface -{ - - btAlignedObjectArray<btVector3> m_forwardWS; - btAlignedObjectArray<btVector3> m_axle; - btAlignedObjectArray<btScalar> m_forwardImpulse; - btAlignedObjectArray<btScalar> m_sideImpulse; - - ///backwards compatibility - int m_userConstraintType; - int m_userConstraintId; - -public: - class btVehicleTuning - { - public: - - btVehicleTuning() - :m_suspensionStiffness(btScalar(5.88)), - m_suspensionCompression(btScalar(0.83)), - m_suspensionDamping(btScalar(0.88)), - m_maxSuspensionTravelCm(btScalar(500.)), - m_frictionSlip(btScalar(10.5)), - m_maxSuspensionForce(btScalar(6000.)) - { - } - btScalar m_suspensionStiffness; - btScalar m_suspensionCompression; - btScalar m_suspensionDamping; - btScalar m_maxSuspensionTravelCm; - btScalar m_frictionSlip; - btScalar m_maxSuspensionForce; - - }; -private: - - btVehicleRaycaster* m_vehicleRaycaster; - btScalar m_pitchControl; - btScalar m_steeringValue; - btScalar m_currentVehicleSpeedKmHour; - - btRigidBody* m_chassisBody; - - int m_indexRightAxis; - int m_indexUpAxis; - int m_indexForwardAxis; - - void defaultInit(const btVehicleTuning& tuning); - -public: - - //constructor to create a car from an existing rigidbody - btRaycastVehicle(const btVehicleTuning& tuning,btRigidBody* chassis, btVehicleRaycaster* raycaster ); - - virtual ~btRaycastVehicle() ; - - - ///btActionInterface interface - virtual void updateAction( btCollisionWorld* collisionWorld, btScalar step) - { - (void) collisionWorld; - updateVehicle(step); - } - - - ///btActionInterface interface - void debugDraw(btIDebugDraw* debugDrawer); - - const btTransform& getChassisWorldTransform() const; - - btScalar rayCast(btWheelInfo& wheel); - - virtual void updateVehicle(btScalar step); - - - void resetSuspension(); - - btScalar getSteeringValue(int wheel) const; - - void setSteeringValue(btScalar steering,int wheel); - - - void applyEngineForce(btScalar force, int wheel); - - const btTransform& getWheelTransformWS( int wheelIndex ) const; - - void updateWheelTransform( int wheelIndex, bool interpolatedTransform = true ); - -// void setRaycastWheelInfo( int wheelIndex , bool isInContact, const btVector3& hitPoint, const btVector3& hitNormal,btScalar depth); - - btWheelInfo& addWheel( const btVector3& connectionPointCS0, const btVector3& wheelDirectionCS0,const btVector3& wheelAxleCS,btScalar suspensionRestLength,btScalar wheelRadius,const btVehicleTuning& tuning, bool isFrontWheel); - - inline int getNumWheels() const { - return int (m_wheelInfo.size()); - } - - btAlignedObjectArray<btWheelInfo> m_wheelInfo; - - - const btWheelInfo& getWheelInfo(int index) const; - - btWheelInfo& getWheelInfo(int index); - - void updateWheelTransformsWS(btWheelInfo& wheel , bool interpolatedTransform = true); - - - void setBrake(btScalar brake,int wheelIndex); - - void setPitchControl(btScalar pitch) - { - m_pitchControl = pitch; - } - - void updateSuspension(btScalar deltaTime); - - virtual void updateFriction(btScalar timeStep); - - - - inline btRigidBody* getRigidBody() - { - return m_chassisBody; - } - - const btRigidBody* getRigidBody() const - { - return m_chassisBody; - } - - inline int getRightAxis() const - { - return m_indexRightAxis; - } - inline int getUpAxis() const - { - return m_indexUpAxis; - } - - inline int getForwardAxis() const - { - return m_indexForwardAxis; - } - - - ///Worldspace forward vector - btVector3 getForwardVector() const - { - const btTransform& chassisTrans = getChassisWorldTransform(); - - btVector3 forwardW ( - chassisTrans.getBasis()[0][m_indexForwardAxis], - chassisTrans.getBasis()[1][m_indexForwardAxis], - chassisTrans.getBasis()[2][m_indexForwardAxis]); - - return forwardW; - } - - ///Velocity of vehicle (positive if velocity vector has same direction as foward vector) - btScalar getCurrentSpeedKmHour() const - { - return m_currentVehicleSpeedKmHour; - } - - virtual void setCoordinateSystem(int rightIndex,int upIndex,int forwardIndex) - { - m_indexRightAxis = rightIndex; - m_indexUpAxis = upIndex; - m_indexForwardAxis = forwardIndex; - } - - - ///backwards compatibility - int getUserConstraintType() const - { - return m_userConstraintType ; - } - - void setUserConstraintType(int userConstraintType) - { - m_userConstraintType = userConstraintType; - }; - - void setUserConstraintId(int uid) - { - m_userConstraintId = uid; - } - - int getUserConstraintId() const - { - return m_userConstraintId; - } - -}; - -class btDefaultVehicleRaycaster : public btVehicleRaycaster -{ - btDynamicsWorld* m_dynamicsWorld; -public: - btDefaultVehicleRaycaster(btDynamicsWorld* world) - :m_dynamicsWorld(world) - { - } - - virtual void* castRay(const btVector3& from,const btVector3& to, btVehicleRaycasterResult& result); - -}; - - -#endif //BT_RAYCASTVEHICLE_H - diff --git a/thirdparty/bullet/src/BulletDynamics/Vehicle/btVehicleRaycaster.h b/thirdparty/bullet/src/BulletDynamics/Vehicle/btVehicleRaycaster.h deleted file mode 100644 index 3cc909c653..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Vehicle/btVehicleRaycaster.h +++ /dev/null @@ -1,35 +0,0 @@ -/* - * Copyright (c) 2005 Erwin Coumans http://bulletphysics.org - * - * Permission to use, copy, modify, distribute and sell this software - * and its documentation for any purpose is hereby granted without fee, - * provided that the above copyright notice appear in all copies. - * Erwin Coumans makes no representations about the suitability - * of this software for any purpose. - * It is provided "as is" without express or implied warranty. -*/ -#ifndef BT_VEHICLE_RAYCASTER_H -#define BT_VEHICLE_RAYCASTER_H - -#include "LinearMath/btVector3.h" - -/// btVehicleRaycaster is provides interface for between vehicle simulation and raycasting -struct btVehicleRaycaster -{ -virtual ~btVehicleRaycaster() -{ -} - struct btVehicleRaycasterResult - { - btVehicleRaycasterResult() :m_distFraction(btScalar(-1.)){}; - btVector3 m_hitPointInWorld; - btVector3 m_hitNormalInWorld; - btScalar m_distFraction; - }; - - virtual void* castRay(const btVector3& from,const btVector3& to, btVehicleRaycasterResult& result) = 0; - -}; - -#endif //BT_VEHICLE_RAYCASTER_H - diff --git a/thirdparty/bullet/src/BulletDynamics/Vehicle/btWheelInfo.cpp b/thirdparty/bullet/src/BulletDynamics/Vehicle/btWheelInfo.cpp deleted file mode 100644 index ef93c16fff..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Vehicle/btWheelInfo.cpp +++ /dev/null @@ -1,56 +0,0 @@ -/* - * Copyright (c) 2005 Erwin Coumans http://continuousphysics.com/Bullet/ - * - * Permission to use, copy, modify, distribute and sell this software - * and its documentation for any purpose is hereby granted without fee, - * provided that the above copyright notice appear in all copies. - * Erwin Coumans makes no representations about the suitability - * of this software for any purpose. - * It is provided "as is" without express or implied warranty. -*/ -#include "btWheelInfo.h" -#include "BulletDynamics/Dynamics/btRigidBody.h" // for pointvelocity - - -btScalar btWheelInfo::getSuspensionRestLength() const -{ - - return m_suspensionRestLength1; - -} - -void btWheelInfo::updateWheel(const btRigidBody& chassis,RaycastInfo& raycastInfo) -{ - (void)raycastInfo; - - - if (m_raycastInfo.m_isInContact) - - { - btScalar project= m_raycastInfo.m_contactNormalWS.dot( m_raycastInfo.m_wheelDirectionWS ); - btVector3 chassis_velocity_at_contactPoint; - btVector3 relpos = m_raycastInfo.m_contactPointWS - chassis.getCenterOfMassPosition(); - chassis_velocity_at_contactPoint = chassis.getVelocityInLocalPoint( relpos ); - btScalar projVel = m_raycastInfo.m_contactNormalWS.dot( chassis_velocity_at_contactPoint ); - if ( project >= btScalar(-0.1)) - { - m_suspensionRelativeVelocity = btScalar(0.0); - m_clippedInvContactDotSuspension = btScalar(1.0) / btScalar(0.1); - } - else - { - btScalar inv = btScalar(-1.) / project; - m_suspensionRelativeVelocity = projVel * inv; - m_clippedInvContactDotSuspension = inv; - } - - } - - else // Not in contact : position wheel in a nice (rest length) position - { - m_raycastInfo.m_suspensionLength = this->getSuspensionRestLength(); - m_suspensionRelativeVelocity = btScalar(0.0); - m_raycastInfo.m_contactNormalWS = -m_raycastInfo.m_wheelDirectionWS; - m_clippedInvContactDotSuspension = btScalar(1.0); - } -} diff --git a/thirdparty/bullet/src/BulletDynamics/Vehicle/btWheelInfo.h b/thirdparty/bullet/src/BulletDynamics/Vehicle/btWheelInfo.h deleted file mode 100644 index f991a57b69..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/Vehicle/btWheelInfo.h +++ /dev/null @@ -1,121 +0,0 @@ -/* - * Copyright (c) 2005 Erwin Coumans http://continuousphysics.com/Bullet/ - * - * Permission to use, copy, modify, distribute and sell this software - * and its documentation for any purpose is hereby granted without fee, - * provided that the above copyright notice appear in all copies. - * Erwin Coumans makes no representations about the suitability - * of this software for any purpose. - * It is provided "as is" without express or implied warranty. -*/ -#ifndef BT_WHEEL_INFO_H -#define BT_WHEEL_INFO_H - -#include "LinearMath/btVector3.h" -#include "LinearMath/btTransform.h" - -class btRigidBody; - -struct btWheelInfoConstructionInfo -{ - btVector3 m_chassisConnectionCS; - btVector3 m_wheelDirectionCS; - btVector3 m_wheelAxleCS; - btScalar m_suspensionRestLength; - btScalar m_maxSuspensionTravelCm; - btScalar m_wheelRadius; - - btScalar m_suspensionStiffness; - btScalar m_wheelsDampingCompression; - btScalar m_wheelsDampingRelaxation; - btScalar m_frictionSlip; - btScalar m_maxSuspensionForce; - bool m_bIsFrontWheel; - -}; - -/// btWheelInfo contains information per wheel about friction and suspension. -struct btWheelInfo -{ - struct RaycastInfo - { - //set by raycaster - btVector3 m_contactNormalWS;//contactnormal - btVector3 m_contactPointWS;//raycast hitpoint - btScalar m_suspensionLength; - btVector3 m_hardPointWS;//raycast starting point - btVector3 m_wheelDirectionWS; //direction in worldspace - btVector3 m_wheelAxleWS; // axle in worldspace - bool m_isInContact; - void* m_groundObject; //could be general void* ptr - }; - - RaycastInfo m_raycastInfo; - - btTransform m_worldTransform; - - btVector3 m_chassisConnectionPointCS; //const - btVector3 m_wheelDirectionCS;//const - btVector3 m_wheelAxleCS; // const or modified by steering - btScalar m_suspensionRestLength1;//const - btScalar m_maxSuspensionTravelCm; - btScalar getSuspensionRestLength() const; - btScalar m_wheelsRadius;//const - btScalar m_suspensionStiffness;//const - btScalar m_wheelsDampingCompression;//const - btScalar m_wheelsDampingRelaxation;//const - btScalar m_frictionSlip; - btScalar m_steering; - btScalar m_rotation; - btScalar m_deltaRotation; - btScalar m_rollInfluence; - btScalar m_maxSuspensionForce; - - btScalar m_engineForce; - - btScalar m_brake; - - bool m_bIsFrontWheel; - - void* m_clientInfo;//can be used to store pointer to sync transforms... - - btWheelInfo() {} - - btWheelInfo(btWheelInfoConstructionInfo& ci) - - { - - m_suspensionRestLength1 = ci.m_suspensionRestLength; - m_maxSuspensionTravelCm = ci.m_maxSuspensionTravelCm; - - m_wheelsRadius = ci.m_wheelRadius; - m_suspensionStiffness = ci.m_suspensionStiffness; - m_wheelsDampingCompression = ci.m_wheelsDampingCompression; - m_wheelsDampingRelaxation = ci.m_wheelsDampingRelaxation; - m_chassisConnectionPointCS = ci.m_chassisConnectionCS; - m_wheelDirectionCS = ci.m_wheelDirectionCS; - m_wheelAxleCS = ci.m_wheelAxleCS; - m_frictionSlip = ci.m_frictionSlip; - m_steering = btScalar(0.); - m_engineForce = btScalar(0.); - m_rotation = btScalar(0.); - m_deltaRotation = btScalar(0.); - m_brake = btScalar(0.); - m_rollInfluence = btScalar(0.1); - m_bIsFrontWheel = ci.m_bIsFrontWheel; - m_maxSuspensionForce = ci.m_maxSuspensionForce; - - } - - void updateWheel(const btRigidBody& chassis,RaycastInfo& raycastInfo); - - btScalar m_clippedInvContactDotSuspension; - btScalar m_suspensionRelativeVelocity; - //calculated by suspension - btScalar m_wheelsSuspensionForce; - btScalar m_skidInfo; - -}; - -#endif //BT_WHEEL_INFO_H - diff --git a/thirdparty/bullet/src/BulletDynamics/premake4.lua b/thirdparty/bullet/src/BulletDynamics/premake4.lua deleted file mode 100644 index 32414dce3e..0000000000 --- a/thirdparty/bullet/src/BulletDynamics/premake4.lua +++ /dev/null @@ -1,21 +0,0 @@ - project "BulletDynamics" - kind "StaticLib" - includedirs { - "..", - } - files { - "Dynamics/*.cpp", - "Dynamics/*.h", - "ConstraintSolver/*.cpp", - "ConstraintSolver/*.h", - "Featherstone/*.cpp", - "Featherstone/*.h", - "MLCPSolvers/*.cpp", - "MLCPSolvers/*.h", - "Vehicle/*.cpp", - "Vehicle/*.h", - "Character/*.cpp", - "Character/*.h" - - } - |