POV-Ray : Newsgroups : povray.binaries.images : Re: Stereogram Server Time
17 Aug 2024 14:19:52 EDT (-0400)
  Re: Stereogram (Message 1 to 9 of 9)  
From: Trevor Quayle
Subject: Re: Stereogram
Date: 18 Sep 2001 11:39:15
Message: <3ba76aa3@news.povray.org>
After Chaps' posting regarding stereograms, I pounded away for a while and
finally came up with working stereogram 'camera'.  It creates the multiple
views using mirrors, no_image and a cylindrical projection camera.  I will
post the macro as well as a sample scene in p.b.s-f. Please let me know what
you think and if you have any suggestions.

This is what the sample image looks like at 800x400 with AA0.1:

tgq


--
camera{location z*13look_at 0}light_source{15 15looks_like{sphere{0 10
}pigment{rgb 1}finish{ambient 15}}}union{torus{3,0.5rotate x*90}cone{y
*4,.5,-y*8,0}cone{-x*4,.5,x*8,0}pigment{rgb<.7,.6,.4>}finish{ambient 0
diffuse 0reflection{1fresnel on metallic 1}}interior{ior 25}rotate 15}
plane{y,-7pigment{checker rgb 0rgb 1scale 4}finish{diffuse.1}}//   TGQ


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Attachments:
Download 'StereoSample.jpg' (40 KB)

Preview of image 'StereoSample.jpg'
StereoSample.jpg


 

From: Jaime Vives Piqueres
Subject: Re: Stereogram
Date: 18 Sep 2001 13:29:15
Message: <3BA7846C.12AFF8E7@ignorancia.org>

> 
> After Chaps' posting regarding stereograms, I pounded away for a while and
> finally came up with working stereogram 'camera'.  It creates the multiple
> views using mirrors, no_image and a cylindrical projection camera.  I will
> post the macro as well as a sample scene in p.b.s-f. Please let me know what
> you think and if you have any suggestions.
> 
  I've a special ability to see stereograms, but anyhow this one is the
most "easy to focus" that I've seen. No artifacts, just enough depth but
not too much... very nice! My only suggestion is to make more different
ones with the same technique.

-- 
Jaime Vives Piqueres

La Persistencia de la Ignorancia
http://www.ignorancia.org/


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From: Trevor Quayle
Subject: Re: Stereogram
Date: 18 Sep 2001 13:41:48
Message: <3ba7875c@news.povray.org>
See the macro in p.b.s-f
Makes it quite easy to make your own as well, great for seeing what your
objects look like in 3D :)

-tgq


--
camera{location z*13look_at 0}light_source{15 15looks_like{sphere{0 10
}pigment{rgb 1}finish{ambient 15}}}union{torus{3,0.5rotate x*90}cone{y
*4,.5,-y*8,0}cone{-x*4,.5,x*8,0}pigment{rgb<.7,.6,.4>}finish{ambient 0
diffuse 0reflection{1fresnel on metallic 1}}interior{ior 25}rotate 15}
plane{y,-7pigment{checker rgb 0rgb 1scale 4}finish{diffuse.1}}//   TGQ


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From: Stephen Bell
Subject: Re: Stereogram
Date: 18 Sep 2001 22:15:49
Message: <3ba7ffd5$1@news.povray.org>
Have you ever tried creating a SIRD (single image random dot) stereogram,
the typical, "mall variety"?  I've found these to be a lot of fun to make
(see http://students.oc.edu/Stephen.Bell/artwork/bfrogstereogram2.jpg for an
example).  You can get free programs to generate these from grayscale 256
color BMPs (http://www.ucl.ac.uk/~ucapwas/stereo.html) generated in POV-Ray.
It's not a perfect system, but it is a lot of fun to play with.

Stephen Bell
http://students.oc.edu/stephen.bell

"Trevor Quayle" <Tin### [at] hotmailcom> wrote in message
news:3ba76aa3@news.povray.org...
> After Chaps' posting regarding stereograms, I pounded away for a while and
> finally came up with working stereogram 'camera'.  It creates the multiple
> views using mirrors, no_image and a cylindrical projection camera.  I will
> post the macro as well as a sample scene in p.b.s-f. Please let me know
what
> you think and if you have any suggestions.
>
> This is what the sample image looks like at 800x400 with AA0.1:
>
> tgq
>
>
> --
> camera{location z*13look_at 0}light_source{15 15looks_like{sphere{0 10
> }pigment{rgb 1}finish{ambient 15}}}union{torus{3,0.5rotate x*90}cone{y
> *4,.5,-y*8,0}cone{-x*4,.5,x*8,0}pigment{rgb<.7,.6,.4>}finish{ambient 0
> diffuse 0reflection{1fresnel on metallic 1}}interior{ior 25}rotate 15}
> plane{y,-7pigment{checker rgb 0rgb 1scale 4}finish{diffuse.1}}//   TGQ
>
>
>


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From: Marc van den Dikkenberg
Subject: Re: Stereogram
Date: 18 Sep 2001 22:28:45
Message: <qAGoOzJsoB2Qz92XjKLL91A5iKD6@4ax.com>
On Tue, 18 Sep 2001 11:35:28 -0400, "Trevor Quayle"
<Tin### [at] hotmailcom> wrote:

>After Chaps' posting regarding stereograms, I pounded away for a while and
>finally came up with working stereogram 'camera'.  It creates the multiple
>views using mirrors, no_image and a cylindrical projection camera.  I will
>post the macro as well as a sample scene in p.b.s-f. Please let me know what
>you think and if you have any suggestions.
>
>This is what the sample image looks like at 800x400 with AA0.1:

Wow, pretty amazing -- I am hardly ever able to see these things, but had
absolutely no problems with this one. :-)
-- 
Marc van den Dikkenberg
--
The PowerBasic Archives -- http://www.xs4all.nl/~excel/pb.html
All Basic Code Archives -- http://come.to/abcpackets


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From: Josh English
Subject: Re: Stereogram
Date: 18 Sep 2001 22:52:49
Message: <3BA807AC.52296031@spiritone.com>
I hate to ask, but how am I supposed to see this in 3D? I'm only familiar with
the "Magic Eye" method which I've never been able to get to work, Red/Blue
imaging, and using polarized lenses.


--
Josh English
eng### [at] spiritonecom
The POV-Ray Cyclopedia http://www.spiritone.com/~english/cyclopedia/


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From: Trevor Quayle
Subject: Re: Stereogram
Date: 19 Sep 2001 09:55:54
Message: <3ba8a3ea$1@news.povray.org>
Same as the magic eye type
you need to focus behind the image
the goal is to get the images seen by each eye to diverge until the adjacent
objects overlap.
that is, for any two objects, the right eye is focused directly on the right
one and the left eye is focused directly on the left one

good luck

-tgq


--
camera{location z*13look_at 0}light_source{15 15looks_like{sphere{0 10
}pigment{rgb 1}finish{ambient 15}}}union{torus{3,0.5rotate x*90}cone{y
*4,.5,-y*8,0}cone{-x*4,.5,x*8,0}pigment{rgb<.7,.6,.4>}finish{ambient 0
diffuse 0reflection{1fresnel on metallic 1}}interior{ior 25}rotate 15}
plane{y,-7pigment{checker rgb 0rgb 1scale 4}finish{diffuse.1}}//   TGQ


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From: Y
Subject: Re: Stereogram
Date: 22 Sep 2001 17:37:16
Message: <3bad048c$1@news.povray.org>
: See the macro in p.b.s-f
: Makes it quite easy to make your own as well, great for seeing what your
: objects look like in 3D :)
:
: -tgq
:
 Looks pretty good ... I had tried doing something like this but was never
able to get the "background" for the different views to look the same.
The mirror reflection always seemed to vary the color.
 Will check out your code ... thanks for reviving my interest.
--
Y


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From: Y
Subject: Re: Stereogram
Date: 22 Sep 2001 17:42:02
Message: <3bad05aa@news.povray.org>
: Same as the magic eye type
: you need to focus behind the image
: the goal is to get the images seen by each eye to diverge until the adjacent
: objects overlap.
: that is, for any two objects, the right eye is focused directly on the right
: one and the left eye is focused directly on the left one
:
: good luck
:
: -tgq
:
 good luck for sure ;)  I know some folks who have tried for years
without success. It's hard for me to understand as it's very easy for
me to see and I've been doing it for 30 years.  Once you "see it",
you'll know what you need to do ... until then, well ... just know that
it can be done ... ;)
--
Y


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