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Old 01-29-2003, 01:01 AM   #7
Teelf
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Join Date: Apr 2002
Location: Seattle
Posts: 32
Teelf is on a distinguished road
Because spheres are more simple than rectangles.  You can give a rectangle a bouding sphere and cull off of that vice the bounding box.

I'm not sure what you mean.  Which normal are you refering to?
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