Warp <war### [at] tagpovrayorg> wrote:
:   And hope that the ray hits the mesh? If it doesn't, shoot another ray? What
: if after shooting 100 rays you still haven't hit the mesh? :)

  Fool me!
  Of course it's easy to shoot a ray that will certainly hit at least one
triangle (and thus at least two triangles since it's a closed mesh)!
  Just choose a triangle and make the ray go through its center.

  This also solves the problem of isolated mesh parts. After fixing one part,
just check if there are non-fixed triangles and choose one of them and repeat
the same thing described above.

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):_;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

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