On Thu, 23 Dec 1999 23:54:31 -0800 (PST), degby@webtv.net (Donald E.G. Beggs) wrote:

>The setup would be as follows: a projector for the right half of the
>image would follow the right eye of the watcher, by reading the retina
>or iris, and the same with the left eye for the left half of the image.

I made a 3-D video by placing two Sony VX-1000 camcorders
side-by-side on a bar (back-breaker!) with .5X WA converters
on both. I edited the video with images side-by-side, for
cross-eyed viewing. One can see the video fairly well
without glasses if one is used to direct-viewing 3-D still
images (some are on my web page...). Great fun!