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plates
02-24-2002, 09:11 AM
Just a simple question I couldn't find an adequate answer to on google, why are polygons tesselated into triangles? they are both made of of verticies so what is the point? - A technically detailed answer would be cool http://www.opengl.org/discussion_boards/ubb/smile.gif

Thanks

Plates.

tempocrew
02-24-2002, 09:18 AM
Well one big reason that I know of is that triangles are guaranteed to be coplanar.

blood.angel
02-24-2002, 09:48 AM
Yeah, a triangle is guarenteed to be drawn as it appears, but a polygonal shape can be drawn wrongly by the computer.

DFrey
02-24-2002, 10:02 AM
I think the main reason is silicon real-estate. It requires a lot less silicon to rasterize a triangle than it does an arbitrary polygon.

blood.angel
02-24-2002, 10:11 AM
Originally posted by DFrey:
I think the main reason is silicon real-estate. It requires a lot less silicon to rasterize a triangle than it does an arbitrary polygon.

That is true. It is easier to fill in a single planed polygon.