In a very large-scale multi-user virtual environment, it would
seem to me that it may be very worth-while to consider the distribution of
the collision detection task.  Notification of a collision detection is,
after all, a relatively low-bandwidth message.
Perhaps it will help later if we presently consider collision detection 
more as a "high-level" behavior or state of the VE that can be passed 
down theough event notifications much the same way that an avatar 
movement would be, then as a "low-level" mechanism which should 
intrinsically be the task of the individual browser to impliment and handle. 
			-Braddock 
----- http://pcil.ece.jhu.edu/~braddock ----- braddock@jhu.edu -----