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From: numork@ndsuvax.UUCP (James Mork)
Newsgroups: comp.graphics,rec.arts.tv
Subject: Re: How to view Superbowl 3-D
Keywords: TV 3-D graphic
Message-ID: <2059@ndsuvax.UUCP>
Date: 27 Jan 89 21:09:22 GMT
References: <3230@datapg.MN.ORG> <3047@pixar.UUCP>
Reply-To: numork@ndsuvax.UUCP (James Mork)
Distribution: na
Organization: North Dakota State University, Fargo
Lines: 40



  I have seen various arguments about how the three-d effect is
  achieved... would someone correct me if I'm wrong...


  The objects are broadcast with           r........b
  extra colors on the edges (blue          r.      .b
  and red... I think)  A square            r.      .b
  would then look like this ------->       r........b

  The glasses are a blue filter
  and a red filter->  ---(r)-(b)---

  Each side of the square gets
  filtered out by one eye seeing
  through a red or blue filter.

  One eye sees -------------------->       ........b
                                           .      .b
                                           .      .b
                                           ........b

  The other sees ------------------>      r........
                                          r.      .
                                          r.      .
                                          r........

  These conflicting shifts are
  (sorta) combined by the brain
  into a sense of perspective...
  A fake feeling of binocular
  vision...


  Confirm  or  Deny?


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