NAME

       xmatrix - simulates the computer displays from the movie

SYNOPSIS

       xmatrix  [-display  host:display.screen]  [-window]  [-root]  [-install]  [-visual visual]
       [-delay usecs] [-density percentage] [-top | -bottom | -both] [-small |  -large]  [-trace]
       [-mode mode] [-phone number] [-fps]

DESCRIPTION

       The  xmatrix  program draws the 2D "digital rain" effect, as seen on the computer monitors
       in the Wachowski brothers' film, "The Matrix".

       Also see glmatrix(6x) for a 3D rendering of the similar effect that appeared in the  title
       sequence of the movie.

OPTIONS

       xmatrix accepts the following options:

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

       -root   Draw on the root 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 steps of the animation, in microseconds: default 10000.

       -density percentage
               The approximate percentage of the screen that should be filled with characters  at
               any given time.  Default 75%.

               When  running  in  a  window, typing + will increase the density and typing - will
               decrease it.  Typing 0 will momentarily drain the screen.

       -top | -bottom | -both
               If -top is specified, the characters will only drop in from the top of the  screen
               as  sliding  columns  of  characters.   If  -bottom  is specified, then instead of
               sliding columns, the characters will appear as columns that grow downwards and are
               erased  from  above.  If -both is specified, then a mixture of both styles will be
               used.  The default is -both.

               When running in a window, typing [ will switch to top-mode, typing ]  will  switch
               to bottom-mode, and typing \ will switch to both-mode.

       -small | -large
               These options specify the sizes of the characters.  The default is -large.

       -mode trace
               Start  off  with a representation of a phone number being traced.  When the number
               is finally found, display The Matrix as usual.  This is the default.

       -phone number
               The phone number to trace, if -trace is specified.

       -mode crack
               Start off by shutting down the power grid.

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

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

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

       -mode ascii
               Instead of displaying Matrix glyphs, display random ASCII characters.

       -mode pipe
               Instead  of  displaying  random characters, display the output of a subprocess, as
               ASCII.

       -program sh-command
               The command to run to generate the text to display.  This option may be any string
               acceptable  to  /bin/sh.  The program will be run at the end of a pty or pipe, and
               any characters that it prints to stdout will be placed in the feeders for xmatrix.
               If  the  program  exits, it will be launched again after xmatrix has processed all
               the text it produced.

               For example:

                    xmatrix -program 'echo Hello World'
                    xmatrix -ascii -program 'ps -eo comm | rev'
                    xmatrix -program 'od -txC -w6 /dev/random'
                    xmatrix -program 'cat /dev/random'

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

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

COPYRIGHT

       Copyright © 1999-2018 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>, 25-Apr-99.