NAME

       blocktube - draws a swirling, falling tunnel of reflective slabs

SYNOPSIS

       blocktube  [-display  host:display.screen]  [-visual visual] [-window] [-root] [-delay number] [-holdtime
       number] [-changetime number] [-no-texture] [-no-fog] [-wireframe] [-fps]

DESCRIPTION

       Blocktube draws a swirling, falling tunnel of reflective slabs. They fade from hue to hue.

OPTIONS

       -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.

       -window Draw on a newly-created window.  This is the default.

       -root   Draw on the root window.

       -delay number
               Per-frame delay, in microseconds.  Default: 40000 (0.04 seconds.).

       -holdtime number
               How long to stay on the same color.  Default: 1000 frames.

       -changetime number
               How long it takes to fade to a new color.  Default: 200 frames.

       -no-texture
               Draw solid blocks intstead of reflective blocks.

       -no-fog Do not make blocks in the distance be darker.

       -wireframe
               Only draw outlines.

       -fps    Display the current frame rate, CPU load, and polygon count.

ENVIRONMENT

       DISPLAY to get the default host and display number.

       XENVIRONMENT
               to  get  the  name  of  a  resource  file  that  overrides  the  global  resources  stored in the
               RESOURCE_MANAGER property.

SEE ALSO

       X(1), xscreensaver(1)

COPYRIGHT

       Copyright © 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 warranty.

AUTHOR

       Lars Damerow <lars@oddment.org>

X Version 11                                   5.45 (08-Dec-2020)                                  blocktube(6x)