Quake 1 In 3D (RED-BLUE) mod for Quake

What is Anaglyph Quake?

Anaglyph Quake is a modified version of glQuake designed to be viewed with Anaglyph Glasses. The purpose of viewing with Anaglyph glasses is so that the image is viewed in stereo (a separate image for each eye), which is the basis for depth perception. Thus, with this version of Quake, red-cyan glasses, and a suitable computer, you can play Quake in real 3D.
Anaglyph Glasses

Anaglyph Glasses are red-blue glasses (the red lens is over the left eye ). They rely on the idea that the red light will only pass through the red lens, and blue light will only pass through the blue lens. Thus by printing the two different views in these opposing colours, the viewer will see a stereo view, and hence depth (amusing that the two images are appropriate viewpoints of the same scene ). Because red&blue are 2/3 of the colours used by monitors for display , you can get red-cyan glasses, cyan allowing both blue and green thorough.
Why Anaglyph Quake

I originally did this just to see how feasible it was. There are already versions of quake Designed for use with stereo viewing equipment (such as shutter glasses). Although stereo viewing equipment gives better images, the better ones are expensive (and difficult to obtain, where I live); Also the lack of standards in practise also makes me reluctant to purchase such equipment just yet.

Anaglyph have appeared in first person 3d games before; However they were limited to black and purple images and suffered from unsatisfactory stereo perspectives. The Anaglyph feature of older games was largely ignored as it gave the view eye-strain and headaches. Today, with improved computer power and standardised video acceleration, most of the problems suffered by older games is easily over come. I have decided to release this version of Quake here so that other people may try it.