Kene wrote:
> I have realized that a merge does this work well enough with some recalculation
> to get the new intersections. This seems to make more sense at this point.

One thing to be careful of is if you're using actual shadow-casting lights 
instead of ambient or some such. If you build the entire building out of one 
object (e.g., a union of walls and floors), the shadow calculations will 
take forever. Each light will have to test every object in the entire 
structure for each ray cast.

-- 
Darren New, San Diego CA, USA (PST)
   Forget "focus follows mouse." When do
   I get "focus follows gaze"?

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