Displacements can't (as far as I've seen) be added to an entity and therefore put into any hierarchy. Stationary clouds could be made by subdividing the faces of a cube, etc, though they wouldn't move.
Eaglebird 15:53, 12 Oct 2007 (PDT)
- This page should be deleted. --wisemx 12:09, 18 Dec 2007 (PST)