//Update the colliders based on the current position and orientation
	void snRigidbody::updateCollidersAndAABB()
	{
		for (vector<snICollider*>::iterator i = m_colliders.begin(); i != m_colliders.end(); ++i)
		{
			(*i)->updateFromTransform();
		}

		computeBoundingVolume();
	}
BoundingVolume* AbstractMesh::getBoundingVolume() const {
  if (_boundingVolume == NULL) {
    _boundingVolume = computeBoundingVolume();
  }
  return _boundingVolume;
}