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It is stated in a lot of website that blender's system supports only quads. But blender also renders polygon. So, what does this mean? And how is it different from programs that supports polygons(example wings 3D)?

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First let's solve some term confusion here. Every face of a mesh is a polygon. A tri is a polygon with three edges. A quad is a polygon with four edges. And a N-gon is a polygon with n edges. n stands as a variable here for any possible value. In 3D a N-gon describes a face with more than four edges. So when somebody talks about a N-gon then you know: he talks about a face / polygon with more than four edges.

Now for your question: The statement that Blender supports just tris or quads is not longer true. Since Blender can deal with N-Gons too since a pretty while. The code part that made this possible is called Bmesh. Which is a special code part under the hood of Blender to deal with the mesh geometry. It gots introduced with Blender 2.63. More to read here: https://wiki.blender.org/index.php/Dev:Ref/Release_Notes/2.63/BMesh

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  • $\begingroup$ are quads particularly important for character animation? $\endgroup$
    – BumbleBee
    Aug 31, 2016 at 23:54
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    $\begingroup$ That's another question that easily fills several books. I would suggest to make a new question for it :) But in short, when you need to ask this question, then better try to stick with quads for now. $\endgroup$
    – Tiles
    Sep 1, 2016 at 5:56

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