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Original Usenet message from alt.ascii-art, 6 Nov 2002.
Re: 3D ASCII Sailing ships

Re: 3D ASCII Sailing ships

> don't understand how the 7 ships in the pic become 8 in 3D?  is one
> hiding behind the others? ;-)

</lurk>
<science mode>
you see two separate sets of ships, one for each eye - focusing int he
right place overlaps the first of one with the second of the other, and
small shifts are interpreted by the brain as distance effects.

1 2 3 4 5 6 7   <-- right eye sees
       +
  1 2 3 4 5 6 7 <-- left eye sees
 |     |     |
 v     v     v
X X X X X X X X <-- brain interprets, 8 ships.

 The small differences in spacing you see if you look at the ships picture
normally is what makes the 3D effect work.

</science mode>

-Firien

<lurk>

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From: Pete <ppb...@hermes.cam.ac.uk>
Newsgroups: alt.ascii-art
Subject: Re: 3D ASCII Sailing ships
Date: Wed, 6 Nov 2002 18:16:50 +0000
Organization: University of Cambridge, England
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