POV-Ray: Newsgroups: povray.general: How can I create a Stereogram?

POV-Ray : Newsgroups : povray.general : How can I create a Stereogram?		Server Time 20 Nov 2024 12:44:01 EST (-0500)

From: Eitan Tal
Subject: How can I create a Stereogram?
Date: 29 Sep 2001 09:40:45
Message: <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.

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From: Y
Subject: Re: How can I create a Stereogram?
Date: 29 Sep 2001 11:58:11
Message: <3bb5ef93@news.povray.org>

"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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From: Trevor Quayle
Subject: Re: How can I create a Stereogram?
Date: 30 Sep 2001 11:26:36
Message: <3bb739ac@news.povray.org>

I created a macro for a stereo camera that you can use to create a
stereogram.  I can repost it if you would like.

-tgq


"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.
>

Post a reply to this message

From: Trevor Quayle
Subject: Re: How can I create a Stereogram?
Date: 30 Sep 2001 11:28:10
Message: <3bb73a0a$1@news.povray.org>

Actually it should still be available in p.b.s-f under the posting
StereoCamera

-tgq

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