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keep small masses from introducing NaN into bullet's calculations

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Seth Alves 2018-06-08 16:07:01 -07:00
parent 0cadb95d62
commit a2399ea1f6
1 changed files with 4 additions and 0 deletions
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4
libraries/physics/src/PhysicsEngine.cpp
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@ -105,6 +105,10 @@ void PhysicsEngine::addObjectToDynamicsWorld(ObjectMotionState* motionState) {
} }
case MOTION_TYPE_DYNAMIC: { case MOTION_TYPE_DYNAMIC: {
mass = motionState->getMass(); mass = motionState->getMass();
if (mass != mass || mass < 1.0f) {
qCDebug(physics) << "mass is too low, setting to 1.0 Kg --" << mass;
mass = 1.0f;
}
btCollisionShape* shape = const_cast<btCollisionShape*>(motionState->getShape()); btCollisionShape* shape = const_cast<btCollisionShape*>(motionState->getShape());
assert(shape); assert(shape);
shape->calculateLocalInertia(mass, inertia); shape->calculateLocalInertia(mass, inertia);