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From: jcs@crash.cts.com (John Schultz)
Newsgroups: sci.virtual-worlds
Subject: Re: VR on Small Machines?
Message-ID: <6839@crash.cts.com>
Date: 11 Jan 91 02:43:57 GMT
References: <13838@milton.u.washington.edu> <6793@crash.cts.com> <14101@milton.u
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In <14101@milton.u.washington.edu> ron@vicorp.com (Ron Peterson) writes:



>In article <6793@crash.cts.com> jcs@crash.cts.com (John Schultz) writes:
>> It even does anaglyph stereo (very inexpensive!).
>>  Any other questions, feel free to ask.
>What is anaglyph stereo?  Is it different than just creating two images
>using a standard perspective transformation from two slightly seperated
>points of view?

  Anaglyph: aka Red/Green, Red/Blue (Low/high frequency light filters),
was real popular in the 50's (movies, comic books). Cardboard glasses
with plastic filters cost pennies, and generating the image on the computer
is also very easy. The end result is a "grey" scale color when seen
through the filters (really a purple or yellow/green scale). The math is
the same as other stereo techniques.


  John