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rolling friction -> combine using rolling*normal friction, add for both objects.

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rolling friction -> only along the normal, until we have separate rolling friction coefficients on normal and non-normal directions
Don't teleport with grasping controller (VR)
Tune VR grasping a bit.
This commit is contained in:
erwincoumans
2016-09-12 19:10:20 +01:00
parent af7c44d360
commit e5a8eb2425
8 changed files with 36 additions and 20 deletions
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2
src/BulletCollision/CollisionDispatch/btManifoldResult.cpp
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@@ -27,7 +27,7 @@ ContactAddedCallback gContactAddedCallback=0;
///User can override this material combiner by implementing gContactAddedCallback and setting body0->m_collisionFlags |= btCollisionObject::customMaterialCallback;
btScalar btManifoldResult::calculateCombinedRollingFriction(const btCollisionObject* body0,const btCollisionObject* body1)
{
btScalar friction = body0->getRollingFriction() * body1->getRollingFriction();
btScalar friction = body0->getRollingFriction() * body1->getFriction() + body1->getRollingFriction() * body0->getFriction();
const btScalar MAX_FRICTION = btScalar(10.);
if (friction < -MAX_FRICTION)

4
src/BulletDynamics/Featherstone/btMultiBodyConstraintSolver.cpp
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@@ -1011,8 +1011,8 @@ void btMultiBodyConstraintSolver::convertMultiBodyContact(btPersistentManifold*
if (rollingFriction > 0)
{
addMultiBodyRollingFrictionConstraint(cp.m_normalWorldOnB,manifold,frictionIndex,cp,colObj0,colObj1, relaxation,infoGlobal);
addMultiBodyRollingFrictionConstraint(cp.m_lateralFrictionDir1,manifold,frictionIndex,cp,colObj0,colObj1, relaxation,infoGlobal);
addMultiBodyRollingFrictionConstraint(cp.m_lateralFrictionDir2,manifold,frictionIndex,cp,colObj0,colObj1, relaxation,infoGlobal);
//addMultiBodyRollingFrictionConstraint(cp.m_lateralFrictionDir1,manifold,frictionIndex,cp,colObj0,colObj1, relaxation,infoGlobal);
//addMultiBodyRollingFrictionConstraint(cp.m_lateralFrictionDir2,manifold,frictionIndex,cp,colObj0,colObj1, relaxation,infoGlobal);
rollingFriction--;
}