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Nathan Kopp <Nat### [at] kopp com> wrote:
:> Not if you make the ray to go always in the same direction,
: independently
:> of the direction of the incoming ray.
: But that wouldn't do exactly what you want. That would only produce an
: orthographic camera, not a perspective camera. And what if you wanted your
: camera security camera to do ultra_wide_angle.
Ok, my statement was incomplete.
What I meant was that for a _specific point_ the ray could go always to
the same direction. The direction could then depend on the point calculated
(but not on the direction of the incoming ray), thus allowing perspective or
whatever.
--
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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