Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!agate!eos!eugene
From: eugene@eos.UUCP (Eugene Miya)
Newsgroups: comp.graphics
Subject: Re: 3-D perceptual abilities
Message-ID: <2796@eos.UUCP>
Date: 4 Mar 89 05:18:28 GMT
References: <MY0CeRy00WB6Q9XlRb@andrew.cmu.edu> <4230@mtuxo.att.com> <15313@cup.portal.com>
Reply-To: eugene@eos.UUCP (Eugene Miya)
Distribution: na
Organization: NASA Ames Research Center, Calif.
Lines: 13

Purchase the 35 mm slide set on Optical Illusions from the Exploratorium.

One interesting consequence I learned in grad school was to rotate images
of lunar craters and mountains upside down.  Mountains appear to become
craters and craters become mountains without adequate cues.

Another gross generalization from

--eugene miya, NASA Ames Research Center, eugene@aurora.arc.nasa.gov
  resident cynic at the Rock of Ages Home for Retired Hackers:
  "Mailers?! HA!", "If my mail does not reach you, please accept my apology."
  {uunet,hplabs,ncar,decwrl,allegra,tektronix}!ames!aurora!eugene
  "Post follow ups.  Contribute to network noise."