Provided by: xscreensaver-gl-extra_5.11-1ubuntu2_i386
blocktube - draws a swirling, falling tunnel of reflective slabs
blocktube [-display host:display.screen] [-visual visual] [-window]
[-root] [-delay number] [-holdtime number] [-changetime number] [-no-
texture] [-no-fog] [-wireframe] [-fps]
Blocktube draws a swirling, falling tunnel of reflective slabs. They
fade from hue to hue.
Specify which visual to use. Legal values are the name of a
visual class, or the id number (decimal or hex) of a specific
-window Draw on a newly-created window. This is the default.
-root Draw on the root window.
Per-frame delay, in microseconds. Default: 40000 (0.04
How long to stay on the same color. Default: 1000 frames.
How long it takes to fade to a new color. Default: 200 frames.
Draw solid blocks intstead of reflective blocks.
-no-fog Do not make blocks in the distance be darker.
Only draw outlines.
-fps Display the current frame rate, CPU load, and polygon count.
DISPLAY 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 (C) 2003 by Lars Damerow. 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
Lars Damerow <email@example.com>