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From: lippin@twinkies.berkeley.edu (The Apathist)
Newsgroups: comp.windows.misc,comp.sys.next,comp.sys.mac,alt.cyberpunk
Subject: Re: 3D display (Was: replacing the desktop metaphor)
Message-ID: <18963@agate.BERKELEY.EDU>
Date: 11 Jan 89 05:23:01 GMT
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Recently hyc@math.lsa.umich.edu (Howard Chu) wrote:

>A simpler method might have worked better - recent 3D movies used polarized
>light/glassses combos, which seemed to work well enough. At least the viewing
>hardware (2 pieces of plastic with polarized coatings) is simple. I suppose
>generating the proper image on the display becomes more difficult, though...

A year ago, at MacWorld Expo SF, E-Machines was demonstrating an
experimental 3D monitor for the Mac II along these lines.  The glasses
were of polarizing plastic, and were similar to light sunglasses when
looking at anything but the screen.  The screen proper was behind an
LCD layer, which changed its polarization with each refresh.  The
screen was extra bright to get around the light loss through the
polarizer.

The video card alternated between two images according to one of the
color bits, although they were planning a version which had two image
buffers.

All in all, it was pretty impressive.

					--Tom Lippincott
					  lippin@math.berkeley.edu

		"The one who dies with the most toys wins."