John VanSickle <van### [at] erolscom> wrote:
: For flat triangles the normal is derived from a cross-product of two
: of the edge vectors (I presume) and therefore depends on the order the
: vertices are defined.

  I think it doesn't matter which side the normal is pointing to (as in any
other surface in povray). This specially doesn't matter with triangles since
they do not have interior.

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

Post a reply to this message