I've been doing stereoscopic imaging with personal computers (not PC's) since '87 or '88. All my early work was done on an Amiga, as that was the first personal computer with the graphics capability to handle what I wanted to do. The four methods that I've used on a personal computer are as follows:
.....1) The use of red and blue glasses (recent movies released have used different color pairs), which is sometimes referred to as the anaglyph technique. Use of this technique has traditionally been used with gray-scale images, or relatively poor quality color images. With the use of different color combination lenses, this has been improved in recent years.
.....2) Liquid crystal shutter glasses that alternately block the image seen by the left eye and then that seen by the right eye. Unfortunately, although this worked well on the Amiga and Atari and certain high end graphics workstations, it didn't work with any computer that didn't provide a vertical blanking interrupt. As Windows OS machines progressed and graphics cards improved, this changed.
.....3) Crossed-eye method. The right eye looks at the image on the left, and the left eye looks at the image on the right. This approach has several advantages (i.e. inexpensive, full color) and a disadvantage in that many people find it difficult to use, and it gives an illusion of the images being smaller than desirable.
.....4) Prismatic wedge (or Fresnel prism) method. A pair of
prisms (apex angle less than 20O is used to merge image pairs in which that for one eye is placed above the that for the other eye. This has the advantage that (as with the crossed eye method) it can be displayed on any monitor with a screen resolution sufficiently high for the image pair. It has an advantage over the crossed-eye method that apparent image size isn't changed, but has the disadvantage that the wedges must be made and correctly positioned during use.
Images using the first, third and fourth of these techniques are available via this web site. If you're interested in seeing different ones posted, email me (firstname.lastname@example.org) to let me know.