[gameprogrammer] Re: Red/Blue 3d Glasses

[Sami Näätänen <sn.ml@bayminer.com>]

On Wednesday 09 May 2007, Alan Wolfe wrote:
> A little follow up to this stuff in case anyone is interested now or
> in the future sometime :P
>
> I was experimenting with this stuff and found some odd results.
>
> when drawing on a black background, red and blue (pure colors) were
> needed for the 3d glasses to work.
>
> when drawing on a white background, cyan and red were needed.
>
> It was strange.

This is just, because they try to balance and maximize the intensity 
level with the green.

So as you found out the red will let just a litle bit green through and 
from black background you can see that as a shadow if you use cyan as 
the right color when the background is dark.

This is also the reason that the right lens has more green in it, 
because the pure blue is not nearly as bright as pure red.

For good quality you would need a static background color and a proper 
lookup tables for both lenses (for that background color). If you want 
to change the background the lut will also change.

I think I bumped somewhere to the background color, that will give the 
widest intensity range for those color 3D-glasses, but I can't remeber 
where or what.

I got proper shutter glasses for 30€, so I don't need to anymore. :)
Sadly though they are useless in linux, because the NVidia drivers don't 
allow stereo visuals for the gamer HW. :(

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