[Visualpython-users] red-cyan stereo

[Bruce S. <bas...@un...>]

I bought some cheap red-cyan glasses from www.reel3d.com and find that 
they are in some ways significantly better than the more common red-blue 
glasses for cheap stereo. With red-blue, the complete lack of green to 
which the eye is particularly sensitive makes the overall scene quite 
dark, and overlap regions are magenta, which isn't very attractive. With 
red-cyan, the scene is much brighter, and overlap regions are gray, 
which looks nicer. It is true that "ghosts" are somewhat more of a 
problem with red-cyan, but surprisingly not as much as one might expect.

It seems possible that one might even achieve something like full color. 
In the overlap regions, which are gray with the current implementation 
of scene.stereo = 'redcyan', in principle one could display all colors, 
with only the nonoverlap areas being limited to red and cyan. Even if 
there is no overlap, you could still perceive full color if the red 
channel plus the cyan channel preserved the full color information. 
However, that would mean that a pure red object would display to only 
the left eye (and an object that has no red content would display only 
to the right eye). Perhaps one could unsaturate the colors somewhat 
(that is, add some white) to ensure that all objects had some red and 
cyan? Maybe this is worth tinkering with.

Bruce Sherwood