saw this on somebody else's machine and just wanted to have it...

the best way to see it is to start in a small window and then resize to full
screen as soon as it has grabbed the screenshot.

it didn't take that long to convert all the X calls to draw ones, but much
longer to clean it up into viewable form. i'm sure i haven't cleaned
everything :)

the non-plan9 code is gnu, so have that in mind if you decide to play with
it.

andrey

ps: other xscreensaver stuff for plan9:

    http://www.acl.lanl.gov/plan9/xscreensaver