NAME

       crystal - kaleidescope.

SYNOPSIS

       crystal [--display host:display.screen] [--visual visual] [--window] [--root] [--window-id
       number] [--grid] [--no-cell] [--centre]  [--nx  number]  [--ny  number]  [--count  number]
       [--delay number] [--ncolors number] [--fps]

DESCRIPTION

       Moving  polygons, similar to a kaleidescope (more like a kaleidescope than the hack called
       `kaleid,' actually.)

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.

       --window-id number
               Draw on the specified window.

       --grid | --no-grid
               Whether to draw grid.

       --cell | --no-cell
               Whether to draw the cell.

       --centre | --no-centre
               Whether to center on screen

       --nx number
               Horizontal Symmetries.   -10 - 10.  Default: -3.

       --ny number
               Vertical Symmetries.  -10 - 10.  Default: -3.

       --count number
               Count.    -5000 - 5000.  Default: -500.

       --delay number
               Per-frame delay, in microseconds.  Default: 60000 (0.06 seconds.).

       --ncolors number
               Number of Colors.  Default: 100.

       --fps   Display the current frame rate and CPU load.

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.

       XSCREENSAVER_WINDOW
               The window ID to use with --root.

SEE ALSO

       X(1), xscreensaver(1)

COPYRIGHT

       Copyright © 2002 by Jouk Jansen.  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

       Jouk Jansen.