The answer, I think, has been discussed for quite a while.
Non-linear transformations is the main benefit I see. And not a small one at
that.

Margus

Nieminen Mika wrote:
> 
>   A question:
>   Is all this triangulation of objects worth the efforts? Ok, you get a
> preview. So what? I think that there are many other things more important
> for the povteam to do than worrying about previews. Making trianguation
> code for _all_ the objects is not a trivial thing and the benefits are
> questionable. If you want a preview, use a modeller.
>   And besides, implementing an OpenGL or whatever preview would make povray
> non-portable.
> 
> --
> main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
> ):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

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