From Andreas Gustafsson (http://www.lysator.liu.se/~sdw/opengl2000.html):
"This didn't take me long to do, and I didn't write more than approximately 100 lines of code, but the result is still not that bad!"
Ported to Linux by Tugrul Galatali.
OPTIONS
--root
Draw on the root window.
--maxfps number
Set maximum frame rate.
--nice
Idle between frames using select(), or, if --maxfps is specified, idle in the fps limiting delay loop.
Colorfire is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation.
Colorfire is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.