Base class for all 3D joints All 3D joints link two nodes, has a priority, and can decide if the two bodies of the nodes should be able to collide with each other If [code]true[/code] the two bodies of the nodes are not able to collide with each other. The [Node], the first side of the Joint attaches to. The [Node], the second side of the Joint attaches to. The order in wich the solver is executed compared to the other [Joints], the lower, the earlier.