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implemented rolling friction, using a contact constraint. Useful to get rolling spheres to rest, even on a slightly sloped plane.

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See http://www.youtube.com/watch?v=RV7sBAsKu4M and Bullet/Demos/RollingFrictionDemo
Fixes in FractureDemo (mouse picking constraint needs to be removed, otherwise constraint solver crashes/asserts)
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erwin.coumans
2012-09-15 06:52:17 +00:00
parent 54744b6ab9
commit 7eebb79ced
14 changed files with 263 additions and 44 deletions
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src/BulletCollision/CollisionDispatch/btCollisionObject.cpp
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@@ -31,6 +31,7 @@ btCollisionObject::btCollisionObject()
m_activationState1(1),
m_deactivationTime(btScalar(0.)),
m_friction(btScalar(0.5)),
m_rollingFriction(0.0f),
m_restitution(btScalar(0.)),
m_internalType(CO_COLLISION_OBJECT),
m_userObjectPointer(0),