It really helps if you sit back from the screen a little - all we ask now is
an amination :))

Rick

"Alan Kong" <ako### [at] povrayNO-SPAMorg> wrote in message
news:fvpi7scmiocd8d1dvvkp63eovmmpqa0sai@4ax.com...
> (re-rendered at a slightly higher resolution than last posting
> 08-Jan-2000)
>
>   Basic scene modeled using Moray v3.1 (registered). Scene exported and
> focal (blur) point changed. Thanks to Warp (Juha) for his tetrahedron
> macro and object. It's difficult to make out the eight recursive levels
> of detail in this small image but it shows nicely in my wallpaper image.
>
>   Rendered using MegaPov v0.3. Images combined and copyright notice
> added using Paint Shop Pro v5.03 (original scene used text objects but
> it was unreadable in this resolution).
>
>   Enjoy, people! Or, enjoy people (either way).
>
> --
> Alan - ako### [at] povrayorg - a k o n g <at> p o v r a y <dot> o r g
> http://www.povray.org - Home of the Persistence of Vision Ray Tracer
>
>
>

Post a reply to this message

Alan,
Actually you don't do the "diverge thing" if you can help it.
It is a painful side effect of creating a parallel stereo
pair where the centers of the images are more than 2.5 inches
apart. When the images are farther apart than the separation of
your eyes, it forces the eyes to diverge (point away from each
other). Many people have problems crossing their eyes, but
cross eyed stereo pairs are often better for computer presentation
because they don't have to be a specific size, so they can work
for any monitor size/resolution. Again, the ultimate is a pair of
LCS glasses, like the ones packaged with the ELSA graphics boards.
To learn more about stereo on the web, visit my web pages and
the VRex web site.

    http://www.jps.net/baize/bm3d.htm
    http://www.3dexpo.com/

Harold

Alan Kong <ako### [at] povrayNO-SPAMorg> wrote in message
news:tfdj7s4jt9vqr0gtma9lptqlhvs6joccmp@4ax.com...
>   How does one do the diverge thing? All of the stereograms I've checked
> out are like the one I posted.
>
> --
> Alan - ako### [at] povrayorg - a k o n g <at> p o v r a y <dot> o r g
> http://www.povray.org - Home of the Persistence of Vision Ray Tracer
>
> On Sun, 09 Jan 2000 21:34:20 -0800 "SamuelT." <STB### [at] aolcom> wrote:
>
> >Nice. I'm glad you made it to where you have to crossed your eyes, rather
> >than diverge them, for I don't know if my eyes would have done it the
other
> >way. That recursive tetrahedrom really pops out of there!
>

Post a reply to this message

While the divergence of ones eyes isn't any too good for those medium to large
pairs you might come across I just have to say that very large cross-eyed pairs
couldn't be so great for the rigid eye people either.
I have to admit that I always go on the assumption that the images would be
looked at with appropriate gear someday (as in a stereoscope) since I always put
the left/right images into one single image file and that would mean redoing the
file otherwise.
Just thought divergence needed some moral support here.

Bob

"Harold Baize" <bai### [at] itsaucsfedu> wrote in message
news:387a1b33@news.povray.org...
> Alan,
> Actually you don't do the "diverge thing" if you can help it.
> It is a painful side effect of creating a parallel stereo
> pair where the centers of the images are more than 2.5 inches
> apart. When the images are farther apart than the separation of
> your eyes, it forces the eyes to diverge (point away from each
> other). Many people have problems crossing their eyes, but
> cross eyed stereo pairs are often better for computer presentation
> because they don't have to be a specific size, so they can work
> for any monitor size/resolution. Again, the ultimate is a pair of
> LCS glasses, like the ones packaged with the ELSA graphics boards.
> To learn more about stereo on the web, visit my web pages and
> the VRex web site.
>
>     http://www.jps.net/baize/bm3d.htm
>     http://www.3dexpo.com/
>
> Harold
>
> Alan Kong <ako### [at] povrayNO-SPAMorg> wrote in message
> news:tfdj7s4jt9vqr0gtma9lptqlhvs6joccmp@4ax.com...
> >   How does one do the diverge thing? All of the stereograms I've checked
> > out are like the one I posted.
> >
> > --
> > Alan - ako### [at] povrayorg - a k o n g <at> p o v r a y <dot> o r g
> > http://www.povray.org - Home of the Persistence of Vision Ray Tracer
> >
> > On Sun, 09 Jan 2000 21:34:20 -0800 "SamuelT." <STB### [at] aolcom> wrote:
> >
> > >Nice. I'm glad you made it to where you have to crossed your eyes, rather
> > >than diverge them, for I don't know if my eyes would have done it the
> other
> > >way. That recursive tetrahedrom really pops out of there!
> >
>
>

Post a reply to this message

> I can't do it!  I just can't!  Just one of those things I've never been able
> to do.  I need a pair of them stereo viewing glasses.

It was kind of hard for me too, back up a couple feet from your monitor and try
it from there, much less eye strain.

--
Homepage: http://www.faricy.net/~davidf/
___     ______________________________
 | \     |_       <dav### [at] faricynet>
 |_/avid |ontaine      <ICQ 55354965>

Post a reply to this message

Bob,

True, cross-eye format also hurts the eyes, more so for some than others,
and many people can't do it at all. On the other hand, Parallel format,
when presented at more than 2.5 inches, is impossible for most people to
fuse (see in stereo), and uncomfortable to even try. So if you prefer
parallel,
great! You might even be one of those rare people who can diverge your eyes
and fuse large stereo pairs without a stereoscope. Anyway, I was not meaning
to be critical. There is a standard file format for stereo images. It is
called JPS,
for JPEG-Stereo. The format calls for cross-eyed arrangement of the images
in a JPEG file (also PNS for stereo PNG files). There are a number of
programs for viewing 3D images that read JPS format files.

What ever works for you, happy viewing.

Harold

omniVERSE <inv### [at] aolcom> wrote in message
news:387a7b08@news.povray.org...
> While the divergence of ones eyes isn't any too good for those medium to
large
> pairs you might come across I just have to say that very large cross-eyed
pairs
> couldn't be so great for the rigid eye people either.
> I have to admit that I always go on the assumption that the images would
be
> looked at with appropriate gear someday (as in a stereoscope) since I
always put
> the left/right images into one single image file and that would mean
redoing the
> file otherwise.
> Just thought divergence needed some moral support here.
>
> Bob
>

Post a reply to this message

"3Dude" <bai### [at] jpsnet> wrote in message news:387ac0e4@news.povray.org...
> Bob,
>
> True, cross-eye format also hurts the eyes, more so for some than others,
> and many people can't do it at all. On the other hand, Parallel format,
> when presented at more than 2.5 inches, is impossible for most people to
> fuse (see in stereo), and uncomfortable to even try. So if you prefer
> parallel,
> great! You might even be one of those rare people who can diverge your eyes
> and fuse large stereo pairs without a stereoscope. Anyway, I was not meaning
> to be critical.

Me neither.  Just sharing my view (ack. a pun got in there).

> There is a standard file format for stereo images. It is
> called JPS,
> for JPEG-Stereo. The format calls for cross-eyed arrangement of the images
> in a JPEG file (also PNS for stereo PNG files). There are a number of
> programs for viewing 3D images that read JPS format files.
>
> What ever works for you, happy viewing.
>
> Harold
>

Hey thanks, don't recall coming across that bit of info before.

Bob

Post a reply to this message

On Sun, 09 Jan 2000 23:22:17 -0600, Mike <pov### [at] aolcom> wrote:

>I can't do it!  I just can't!  Just one of those things I've never been able
>to do.  I need a pair of them stereo viewing glasses.
>
They only work for me if I shut both eyes and use my imagination.  You should see the
images I see!

David
----------------------------
dav### [at] cwcomnet
http://www.hamiltonite.mcmail.com
----------------------------

Post a reply to this message

There is a cheap and easy method to view stereo pairs: hold a mirror
perpendicular to your forehead between your eyes with the mirror surface eg.
to the right. If you have the two images next to one another, with the right
one for the right eye mirrorred: it should be OK. You look at the left image
directly; to the other via the mirror. A little adjusting does the trick.
Only thing is that the mirror should be of good quality (best is a surface
mirror).
You could view images of over 10cm wide easily...

--
Regards,
Sander


Alan Kong <ako### [at] povrayNO-SPAMorg> schreef in berichtnieuws
fvpi7scmiocd8d1dvvkp63eovmmpqa0sai@4ax.com...
> (re-rendered at a slightly higher resolution than last posting
> 08-Jan-2000)
>
>   Basic scene modeled using Moray v3.1 (registered). Scene exported and
> focal (blur) point changed. Thanks to Warp (Juha) for his tetrahedron
> macro and object. It's difficult to make out the eight recursive levels
> of detail in this small image but it shows nicely in my wallpaper image.
>
>   Rendered using MegaPov v0.3. Images combined and copyright notice
> added using Paint Shop Pro v5.03 (original scene used text objects but
> it was unreadable in this resolution).
>
>   Enjoy, people! Or, enjoy people (either way).
>
> --
> Alan - ako### [at] povrayorg - a k o n g <at> p o v r a y <dot> o r g
> http://www.povray.org - Home of the Persistence of Vision Ray Tracer
>
>
>

Post a reply to this message