"Eitan Tal" <eit### [at] netvisionnetil> wrote in message
news:3BB5CE93.DF5B4A79@netvision.net.il...
: I've seen a Stereogram image on povray.binary.images, but it was only an
: RE: message.
: I can see that it is actually the same scene; the camera is somewhere,
: and its look_at is on the scene.
: it looks like the camera had been moved. My question is How much to move
: (Or Rotate?) the camera in order to receive a real-looking stereogram.

 All depends on the scene you are trying to simulate ...
If we assume the eyes are seperated by about 3 inches,
then to simulate a scene where the focus is three foot away,
the shift would be 3/36 or only 1/12 of the distance from your
camera to the object at Look_at.  If your objects in the scene
are meant to be 30 foot away, the shift is then much smaller ...
3/360 or 1/120 of your camera distance.
 These values will get you close ... and yes, it works best to
rotate the camera using the look_at coordinates as the center
of rotation. Camera angle will also affect it so ... just experiment
starting with a small shift and see how it looks.
--
Y

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