Stereo sync

[Yan Xiao]

In article <17895 at thorin.cs.unc.edu> certain at hatteras.cs.unc.edu (Andrew Certain) writes:
>
>We have a passive-glass system, so that there is a plate that we put in front
>of the monitor which polarizes the light coming from the screen, switching
>directions at 60Hz.  The glasses are just polarized lenses so that each eye
>only gets light every other cycle.  So I need to know when the buffers have
>swapped (and, hence, the plate has flipped eyes), so that I can start drawing
>the other eye.
>
>Andrew

I don't quite understand your system.  Can't you just draw two dots on
the screen, each representing an eye's view?  Whenever the buffer swaps,
you light up a cooresponding dot?

xiao