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I was trying out Kevin Ellis' clouds and so I figured I'd make a 3D stereo
pair.
I made the clouds with density_map using a zero density and regular density,
also with both high and low cloud levels.
Both diverged (z) and cross-eyed (x).
Bob H.
--
omniVerse http://users.aol.com/persistenceofv/all.htm
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Attachments:
Download '3D_clouds_x.jpg' (27 KB)
Download '3D_clouds_z.jpg' (27 KB)
Preview of image '3D_clouds_x.jpg'
![3D_clouds_x.jpg](/povray.binaries.images/attachment/%3C3a3cd14b%40news.povray.org%3E/3D_clouds_x.jpg?preview=1)
Preview of image '3D_clouds_z.jpg'
![3D_clouds_z.jpg](/povray.binaries.images/attachment/%3C3a3cd14b%40news.povray.org%3E/3D_clouds_z.jpg?preview=1)
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There seems to be an increased sense of depth looking at the diverged
sphere with crossed eyes. Odd...
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If I could cross my eyes I'd have a look myself, but I can't.
I neglected to mention how this was done. I moved the sphere along with the
camera since it was impossible to have the sphere show up in the scene the way
it was added. It's 6 units wide and 10 units away, while the clouds are
centered on 1000 and 2000 units y. Camera/sphere shifted -7.5 and +7.5 for
each, with look_at being parallel.
That might account for how it looks.
While I'm at it I might as well tell how long it took to render each one.
About one hour (I changed the media settings a little between) on this PIII
500MHz with 256MB. The media could be made to look better but I was opting for
speed.
Bob H.
"Bill DeWitt" <bde### [at] cfl rr com> wrote in message
news:3a3cd589$1@news.povray.org...
>
> There seems to be an increased sense of depth looking at the diverged
> sphere with crossed eyes. Odd...
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"Bob H." wrote:
>
> If I could cross my eyes I'd have a look myself, but I can't.
Then try diverging the cross-eyed ones. The sun seems to retreat to the
far inside of the sphere.
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From: Rick [Kitty5]
Subject: Re: 3D clouds in reflective sphere [~71K Jpg]
Date: 17 Dec 2000 18:16:24
Message: <3a3d4948@news.povray.org>
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> I was trying out Kevin Ellis' clouds and so I figured I'd make a 3D stereo
> pair.
weird - think i am going to have to try some of these...
--
Rick
POVray News & Resources - http://povray.co.uk
Kitty5 WebDesign - http://www.kitty5.com
Hi-Impact web site design & database driven e-commerce
TEL : +44 (01625) 266358 - FAX : +44 (01625) 611913 - ICQ : 15776037
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http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=0x231E1CEA
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It's not working very well for me...
--
David Fontaine <dav### [at] faricy net> ICQ 55354965
My raytracing gallery: http://davidf.faricy.net/
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Okay, I did. It pops up off the surface some for me.
The 3D_clouds_z.jpg (diverged) does show the Sun as being a little recessed
into the sphere I think. Problem is that it's actually only highlight and no
object is actually used for a Sun. I'd expect it to stay at the surface.
Maybe it's the high thin cloud surrounding that.
Bob H.
"Bill DeWitt" <bde### [at] cfl rr com> wrote in message
news:3a3cff87$1@news.povray.org...
> "Bob H." wrote:
> >
> > If I could cross my eyes I'd have a look myself, but I can't.
>
> Then try diverging the cross-eyed ones. The sun seems to retreat to the
> far inside of the sphere.
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The 3D depth was made to be about that of a typical nearby scene, almost
anyway. You have to be kind of far away due to the image size depending on
screen res./monitor size if doing the diverging eyes method (on
3D_clouds_z.jpg).
Can be a bit painful for me unless 3 feet away.
Bob H.
"David Fontaine" <dav### [at] faricy net> wrote in message
news:3A3DA299.AAA1B452@faricy.net...
> It's not working very well for me...
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in povray.binaries.images, Bob H. says...
> I was trying out Kevin Ellis' clouds and so I figured I'd make a 3D stereo
> pair.
> I made the clouds with density_map using a zero density and regular density,
> also with both high and low cloud levels.
> Both diverged (z) and cross-eyed (x).
>
Although I have been looking at quite a lot of stereo pairs in all sorts
of ways with success, I have the suspicion that your pair does not have
very much stereo information. What I mean is that it remains quite flat
if I look at it (easiest is the x-eyed one for me). Also: when I subtract
the one from the other using Photoshop, I get a nearly grey image either
for the sphere or for the sky. Could you perhaps increase the effect a
little to see if that makes it better for me? The scene should be very 3D
in my opinion!
--
Regards, Sander
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"Bob H." wrote:
> The 3D depth was made to be about that of a typical nearby scene, almost
> anyway. You have to be kind of far away due to the image size depending on
> screen res./monitor size if doing the diverging eyes method (on
> 3D_clouds_z.jpg).
> Can be a bit painful for me unless 3 feet away.
Tried it, better, but still kinda flat.
--
David Fontaine <dav### [at] faricy net> ICQ 55354965
My raytracing gallery: http://davidf.faricy.net/
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