>> Yes, because crude approximations to cylindrical columns look so much 
>> more photo-realistic than actually cylindrical columns. Oh, wait...
> 
> Consider what happens if your "approximation" results in sub-pixel-sized 
> triangles. Then it becomes no more an approximation than yours does, 
> considering *your* picture is also made out of pixels.

...until you have a reflection of the object where the triangles appear 
bigger. Or a shadow cast in the wrong direction.

But yeah, sure, I am apparently the only person here who thinks that 
real curves are superior to faked ones. I'll grant you that one.

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