NAME

       glmatrix - simulates the title sequence effect of the movie

SYNOPSIS

       glmatrix     [--display     host:display.screen]    [--window]    [--root]    [--window-id
       number][--install] [--visual visual]  [--delay  usecs]  [--speed  ratio]  [--density  pct]
       [--no-fog]   [--no-waves]   [--no-rotate]  [--binary]  [--hexadecimal]  [--dna]  [--clock]
       [--timefmt fmt] [--wireframe] [--fps]

DESCRIPTION

       The glmatrix program draws the 3D "digital rain" effect, as seen in the title sequence  of
       the Wachowski brothers' film, "The Matrix".

       Also  see  xmatrix(6x)  for  a  2D  rendering  of  the similar effect that appeared on the
       computer monitors actually in the movie.

OPTIONS

       glmatrix accepts the following options:

       --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.

       --install
               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.

       --delay usecs
               The delay between frames of the animation, in microseconds: default 30000.

       --speed ratio
               How  fast the glyphs should move; default 1.0.  2.0 means twice as fast, 0.5 means
               half as fast.

       --density percentage
               The approximate percentage of the screen that should be filled with characters  at
               any given time.  Default 20%.

       --no-fog
               By  default,  glyphs are dimmer the farther away they are.  This argument disables
               that.

       --no-waves
               By default, waves of color  roll  down  the  columns  of  glyphs.   This  argument
               disables that.

       --no-rotate
               By default, the scene slowly tilts and rotates.  This argument disables that.

       --binary
               Instead of displaying Matrix glyphs, only display ones and zeros.

       --hexadecimal
               Instead of displaying Matrix glyphs, display hexadecimal digits.

       --dna   Instead  of  displaying  Matrix  glyphs,  display  genetic code (guanine, adenine,
               thymine, and cytosine.)

       --clock Hide a clock displaying the current time somewhere in the glyphs.

       --timefmt strftime-string
               How to format the clock when --clock is specified.  Default " %l%M%p ".

       --speed ratio
               Less than 1 for slower, greater than 1 for faster.  Default 1.

       --wireframe
               Just draw boxes instead of textured characters.

       --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.

       XSCREENSAVER_WINDOW
               The window ID to use with --root.

SEE ALSO

       xmatrix(6x), X(1), xscreensaver(1)

COPYRIGHT

       Copyright © 1999-2003 by Jamie Zawinski.  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

       Jamie Zawinski <jwz@jwz.org>, 8-Jun-2003.