are anaglyphs red/green or red/cyan?

[michaelrepucci]

Well, that's not really true. The ghosting is related to the filtering properties of the glasses, so those glasses with a better bandpass filter and good cut-offs would be better. We even notice a significant reduction in ghosting simply from doubling up those paper red/green glasses, rather than using just one layer. But it's not enough to completely remove it, and we're having a perceptual problem (Pulfrich effect), with some of our stimuli.

Can you provide more information about how Vizard renders anaglyphic stereo?

[farshizzo]

Vizard uses the glColorMask command to render anaglyphic stereo. Basically, the code works like this:

glColorMask(GL_TRUE, GL_FALSE, GL_FALSE, GL_TRUE);
RenderLeftEye();

glColorMask(GL_FALSE, GL_TRUE, GL_TRUE, GL_TRUE);
RenderRightEye();

That's pretty much it. If you need more advanced control over the color filtering, then you will have to use a post-process shader. Let me know if you are interested in this and I can provide you some code.