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- From: Marcus_Brodeur@dream.uucp (Marcus Brodeur)
- Newsgroups: alt.cyberpunk.tech
- Subject: Re: 3d and Obsolete
- Message-ID: <Marcus_Brodeur.03bc@dream.uucp>
- Date: 17 Nov 92 01:01:03 GMT
- Organization: DreamStates BBS & CyberNet HQ in G'ville, FL 1-904-331-4317
- Lines: 34
-
- On the subject of what 3D glasses would do for our monocular friend here, I
- wonder. A few years back, LC Technologies came out with something called
- StereoTek for the old Atari ST. I had a pair of these suckers, and they
- were very interesting.
-
- Basically, instead of the red-blue nonsense, the lenses of these goggles
- were composed of a liquid crystal lattice. There were wires connected to
- each of these lenses separately. I don't remember exactly how these things
- worked, but it seems to me that the 3D rendering software would prompt the
- 3D goggles through the electronic interface. When the current was flowing
- in one direction, all the crystals would face in the same direction, like
- an open shutter, and you could see right through the lens. When the
- current in the wire reversed, they would all swing in unison in the
- electric field shut, blocking visibility. Basically, the 3D software would
- close the right lens and open the left one, and for that brief interval of
- time display the view for the left eye. Then, a fraction of a second
- later, it would slam shut the left lens, open the right one, turn the 3D
- perspective 3 degrees to simulate the angular difference between the human
- eyes, re-render and display the image. It would keep alternating between
- showing the left eye view and right eye view at something like 70 Hz
- (whatever the raster of your monitor was).
-
- I found the effect to be very impressive in a darkened room. In a daylit
- room, light interference and washout were a problem. The illusion of depth
- was profound. And even on this old Atari ST (goodness, what were they? 8
- MHz machines, if that), you could do real-time wireframe rendering in this
- true stereoscopy mode with the goggles, rotating the image with the mouse
- while viewing it as it floated "outside the monitor" in front of you. If
- that was all possible on an Atari ST 4 years ago, then what incredible
- abilities the hardware of today could offer, I wonder?
-
- !!!!! T E M P U S F U G I T !!!!!
-
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