Ron Parker <par### [at] fwicom> wrote:
: By taking the dot product of each of the six bounding box coordinates 
: with the ray direction.  If they're all further away, then the object
: must be.

  You forget that the bounding box is not necesarily around the object...
nor it is a box... :)

-- 
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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