XScreenSaver(1)                                                XScreenSaver(1)


       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.


       -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

       -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  sec-

       -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.

               Draw solid blocks intstead of reflective blocks.

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

               Only draw outlines.

       -fps | -no-fps
               Whether to show a frames-per-second display at  the  bottom  of
               the screen.


       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.


       X(1), xscreensaver(1)


       Copyright © 2003 by Lars Damerow.  Permission  to  use,  copy,  modify,
       distribute,  and  sell this software and its documentation for any pur-
       pose 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  repre-
       sentations are made about the suitability of this software for any pur-
       pose.  It is provided "as is" without express or implied warranty.


       Lars Damerow <>

X Version 11                                                   XScreenSaver(1)

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