glmatrix (6x)

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]

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.

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.

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.

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

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.

Jamie Zawinski <[email protected]>, 8-Jun-2003.