Ok.. the collision detection is pretty good.. but will there every be a way to basically check if one object collides with another without having to do anything extra to the object.. something like PR_EntityCollide(entity1, entity2); and it would just return yes or no.. that would make my life a lot easier. If something like this is already done, than tell me, because i''m soon expecting PR in the mail, and i''m still using the trial version... which, as far as i know, doesn''t have an option like this. In the trial version you have to convert them into convex polytopes blah blah blah.. it would be nice if i didn''t have to worry about it. Thanks.. -Rich