Vertical Blank syncronization

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From: Mark Evans (mrrevans++at++yahoo.com)
Date: 04/03/2001 12:21:15


I've tried to syncronize swapping buffers with the
vertical retrace. I used the environment

setenv __GL_SYNC_TO_VBLANK 1

and it didn't work.
There was one change though: it seemed like the
refresh was done exactly in the same place (like after
drawing aprox 1/3 of the whole image), but NOT during
vertical retrace. If I move the window to be lower
than
the line on which I noticed the buffer swap was taking
place, it was running OK.
I need my window to fill all the screen.
I use Performer 2.4 (demo version)
on Linux RedHat 6.2.

Any ideas on how I could solve this?

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