man atunnel () - hypnotic GL tunnel journey


atunnel - hypnotic GL tunnel journey


sballs [-display host:display.screen] [-window] [-root] [-visual visual] [-delay microseconds] [-light] [-no-light] [-wire] [-no-wire] [-texture] [-no-texture] [-fps] [-no-fps]


The atunnel program draws an animation of a journey in a GL tunnel.


sballs accepts the following options:

Draw on a newly-created window. This is the default.
Draw on the root window.
Install a private colormap for the window.
-visual visual
Specify which visual to use. Legal values are the name of a visual class, or the id number (decimal or hex) of a specific visual.
Display a running tally of how many frames per second are being rendered. In conjunction with -delay 0, this can be a useful benchmark of your GL performance.
Show a textured tunnel. This is the default.
Disables texturing the animation.
Draw a wireframe rendition of the tunnel.


to get the default host and display number.
to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property.



Copyright © 2003 by Eric Lassauge. Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation. No representations are made about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty.

The original code for this mode was written by Roman Podobedov <> and can be found at


Roman Podobedov <> Eric Lassauge <>