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Hello !
I create this image http://imgur.com/e6ICY.png .
1.For some reason, I want to know the information of polygons.These polygons are
on this cylinder and illuminated by reflex light from the ground.I want to know
information such as polygon coordinate , normal vector ...etc.
2.After I find those information,I want to change some properties of these
polygon,such as color or reflection.
So what source code I should modify to conquer above two questions?
Any suggestion would be OK!
Thanks a lot !
tltsai
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