Subject: A genuine ASCII stereogram!

From: [email-masked] (David B. Thomas)
Date: 12 Feb 92 00:16:39 GMT

Here's an ASCII single image random dot stereogram for your enjoyment.
To get the 3d effect, you need to diverge (unfocus) your eyes
such that two adjacent letters in the same row come together.
To help you focus, try to make the two capital O's at the top
look like three.  Once you've done that, the rest of the image
should jump out of the screen at you!

                              O    O
n   n   n   n   n   n   n   n   n   n   n   n   n   n   n   n   n
f    f    f    f    f    f    f    f    f    f    f    f    f    f
e   e   e   e   e   e   e   e   e   e   e   e   e   e   e   e   e
a    a    a    a    a    a    a    a    a    a    a    a    a    a
a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a
r    r    r    r    r    r    r    r    r    r    r    r    r    r
r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r

Hope you enjoyed it!

						little david
-- 
Who *cares* if your child made the %&*#@! honor roll?

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From: [email-masked] (Jonathan Bowen)
Date: 23 Feb 92 15:36:09 GMT

In article <[email-masked]> [email-masked]
>Hope you enjoyed it!

Yes I did, thank you very much. So much so, that I have created

>should jump out of the screen at you!

Try moving your head back from the screen and moving it about a bit
once you have focused on the image to increase the stereo effect even
more.  Have fun!  Perhaps we can have a whole series of these!

                            O         O
.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
 .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .
   .    .    .    .    .    .    .    .    .    .    .    .    .
   .     .     .     .     .     .     .     .     .     .     .
     .      .      .      .      .      .      .      .      .
 .       .       .       .       .       .       .       .       .
      .        .        .        .        .        .        .
   .         .         .         .         .         .         .
.          .          .          .          .          .          .
|          |          |          |          |          |          |
|          |          |          |          |          |          |
|          |          |          |          |          |          |
|          |          |          |          |          |          |
|          |          |          |          |          |          |
|          |          |          |          |          |          |
   .         .         .         .         .         .         .
      .        .        .        .        .        .        .
 .       .       .       .       .       .       .       .       .
     .      .      .      .      .      .      .      .      .
   .     .     .     .     .     .     .     .     .     .     .
   .    .    .    .    .    .    .    .    .    .    .    .    .
 .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .
.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .

--
Jonathan Bowen, <[email-masked]>
Oxford University Computing Laboratory.

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From: [email-masked] (Scott Evernden)
Date: 13 Feb 92 18:57:30 GMT

In article <[email-masked]> [email-masked] (Steve Balogh (+61 3 565 4747)) writes:
>In article <[email-masked]> [email-masked] (David B. Thomas) writes:

>Yes I did. But I also noticed that I could make 'near' appear behind 'far'
>depending on how I focused my eyes. 

Well, in fact, I can't see it any other way- near *is* farther away than
far.  Just look a the codes- the "far"s are widely separated meaning
they're up close, while the "near"s are closer together meaning they're
farther away...

-scott

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From: [email-masked] (Jack Hsiung)
Date: 13 Feb 92 19:04:19 GMT

In article <[email-masked]> [email-masked] (Steve Balogh (+61 3 565 4747)) writes:
>Steve

I found that the odd rows appear closer if I fuse two adjacent letters.
If I fuse 2 letters 2 columns apart, then the even rows appear closer.
So fusing letters at odd or even distances give the opposite illusion.
-- 
Jack Hsiung
[email-masked]
[email-masked]

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From: [email-masked]
Date: 13 Feb 92 19:43:34 GMT

>>Here's an ASCII single image random dot stereogram for your enjoyment.

nice, but I found a nice *REAL* random-letter stereogram, a while
ago.  It was posted by charles durst to the "3d" mailing list
(see mail headers below for info).   There is talk that this list
and this newsgroup will be gatewayed sometime soon.   anyway, enjoy
the following.  --kcb
----------------------------------------------
From: [email-masked] (Charles Durst {x6163})
Subject: Random LETTER Stereograms
To: [email-masked] (Stereo Photography)
Reply-To: [email-masked]
Sender: [email-masked]
Errors-To: [email-masked]

With all the talk on this list about "random dot stereograms", I have
been toying with the idea of writing a program to generate random LETTER
stereograms.  The only problem is that I don't have enough spare time to
write such a program.

Anyway, I just created (manually) a sort of "proof of concept" sample of
what I'm talking about.

It is intended for cross-eyed free viewing.  Cross your eyes until the
V's and X's at the top and bottom overlap with the adjacent ones.

V              V              V              V              V
VEHWETUQECRFVE[VEHWERTUQECFVE[VEHWQERTUQCFVE[VEOHWQERUQCFVE[
UIWTUIRTWUYWQCRUIWTUYIRTWUWQCRUIWTXUYIRTUWQCRUIBWTXUYRTUWQCR
IYPOWOXNPWTHIECIYPOWTOXNPWHIECIYPONWTOXNWHIECIYLPONWTXNWHIEC
R9UHWVETPUNRQYBR9UHWVETPUNRQYBR9UHWVETPUNRQYBR9UHWVETPUNRQYB
X              X              X              X              X

The letters are not really random, I just got them by pounding on the
keyboard with CAPS LOCK on.  Since there are far fewer letters than there
are dot patterns, it seems to be very important to avoid repeated letters.

Charles Durst				[email-masked]
Computervision/Prime Computer		decvax!cvbnet!cdurst

Remember: NOT playing the Lottery only slightly reduces your chances
of winning.

==
3D -- Stereo Photography                  Tom Neff, moderator

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From: [email-masked] (Greg Alt - Perp)
Date: 13 Feb 92 23:01:24 GMT

Can anyone explain the algorithm for this?  I know the basic idea, but
I couldn't figure out how to a random one...  I know that you have to shift
things by one to make it appear at a different depth, but could someone
give a simple algrithm to do this:
 
Given:  a mask:

                      #####    #####
return a row:
               v              v              v   
ABGHDPLOQMENERUABGHDPLOQMENERUABGHDPLOQMENERUABGHDPLOQMENERU
(only shifted correctly...)

I would think you would do a row something like this:
               v              v              v   
ABGHDPLOQMENERUABGHDPLQMENEORUAGHDPLBOQMENERUABGHDPLOQMENERU 
                      ^^^^^    ^^^^^
Note the two places where I shifted...

Is this correct?  This seems to be different way from the random stereogram
that was posted just recently.
-- 
/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)/)
 "I speak only for myself" -me ) "But if someone came for you one night
 _     _  _     _    ___       )  and dragged you away, do you really 
( ` D  L ( `   /_\ |  |        )  think your neighbors would even care?"
 \7 |\ L  \7   | | L_ |        )    --Jello Biafra, 
      ([email-masked])        )  _Last Scream of the Missing Neighbors_

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From: [email-masked] (RichardPuchmayer)
Date: 14 Feb 92 04:20:46 GMT

>they're up close, while the "near"s are closer together meaning they're

I found that if I crossed my eyes I get a different effect from when
I unfocused my eyes.

    My 2 cents,
        Richard.

--
Richard Puchmayer == [email-masked]   | Some of us are poets,
Masters Student at Curtin University of Technology, WA.|  some of us are not!
-------------------------------------------------------+------------------------
I know nothing, so can hold no opinions for myself or others...