NAME

       glmatrix - simulates the title sequence effect of the movie

SYNOPSIS

       glmatrix  [-display  host:display.screen]  [-window]  [-root]  [-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.

       -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.

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.