Gilles Tran <tra### [at] inapginrafr> wrote:
: They rely on meshes and not on 3D primitives, which permits non-linear
: transformations

  If we speak absolutely strictly, they don't. A true non-linear
transformation of a mesh would bend the triangles, not only move the
vertices. Usually the triangles are so small (and they are phong-shaded
or whatever) that it doesn't matter, though.
  The only way that I can think to approximate a true non-linear
transformation with big triangles would be splitting the triangle into
smaller ones and moving their vertices. Still, it isn't "true" non-linear
transformation, only an approximation :)

-- 
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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