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Disable friction warmstarting by default, removing second friction direction. This gives a large performance increase.

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friction warmstarting can be turned on using:
dynamicsWorld ->getSolverInfo().m_solverMode |= SOLVER_USE_FRICTION_WARMSTARTING;
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erwin.coumans
2008-11-15 22:20:55 +00:00
parent a5c18db854
commit 29bfd06af7
3 changed files with 40 additions and 32 deletions
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2
src/BulletDynamics/ConstraintSolver/btSequentialImpulseConstraintSolver.h
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@@ -41,7 +41,7 @@ protected:
btScalar solve(btRigidBody* body0,btRigidBody* body1, btManifoldPoint& cp, const btContactSolverInfo& info,int iter,btIDebugDraw* debugDrawer);
btScalar solveFriction(btRigidBody* body0,btRigidBody* body1, btManifoldPoint& cp, const btContactSolverInfo& info,int iter,btIDebugDraw* debugDrawer);
void prepareConstraints(btPersistentManifold* manifoldPtr, const btContactSolverInfo& info,btIDebugDraw* debugDrawer);
void 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);
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);
ContactSolverFunc m_contactDispatch[MAX_CONTACT_SOLVER_TYPES][MAX_CONTACT_SOLVER_TYPES];
ContactSolverFunc m_frictionDispatch[MAX_CONTACT_SOLVER_TYPES][MAX_CONTACT_SOLVER_TYPES];