Re: Late night Reg posting
a few years back, when 3D movies started to regain popularity, I wrote an application that lets you take simple 3D photos and produce an anaglyphic (in this case, red/cyan) image from two side by side photos. The idea is to be able to produce the combined image from an imperfect pair, and the image on one side can be moved around a bit to try and accomplish this - ad when you like it, you save the resulting anaglyphic image.
I put several demo photos on a web site, from shots at the hoover dam [the 3D shot of the generators is pretty impressive] which I literally did by moving the camera 1 foot to the right and taking a 2nd shot of the same basic view. no tripod, just had my arms braced against a rail.
Also I had written a slightly improved starfield screen saver, simlar to the one that came with windows, and I added anaglyphic 3D t that - stars whizzing past your head, kinda fun.
Anyway, a resurrection of simple [yet effective] anaglyphic 3D is kinda fun. Sometimes you find that the low tech bandade, spit, bailing wire, and duck-tape solutions are just as effective as spending zillions of dollars on overpriced over-technical "crap" that lines your friend's pockets and looks good in advertisements and presentations, but really doesn't make the difference between success and failure.
(Small startup businesses have to "make do" with hacker-type solutions a LOT, due to a lack of deep pocket investors, just sayin'...)
how to do it: produce red-only from RGB image for left eye, superimose green-blue for right eye into new RGB image. Allow creator to move around and rotate [and maybe even skew] one side so that they line up properly. Then you can slloppy take 2 photos, a foot or so apart horizontally, using the same 2D camera, and later tweek one of the photos a bit and combine them so they look good in 3D. Not hard!