interference (6)

NAME

interference - decaying sinusoidal waves

SYNOPSIS

interference [-display host:display.screen] [-visual visual] [-window] [-root] [-count number] [-gridsize number] [-delay number] [-speed number] [-radius number] [-ncolors number] [-color-shift number] [-hue number] [-no-db] [-fps]

DESCRIPTION

Another color-field hack, this one works by computing decaying sinusoidal waves, and allowing them to interfere with each other as their origins move.

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.

-count number

Number of Waves. 0 - 20. Default: 3.

-gridsize number

Magnification. 1 - 20. Default: 2.

-delay number

Per-frame delay, in microseconds. Default: 30000 (0.03 seconds.).

-speed number

Wave Speed. 1 - 100. Default: 30.

-radius number

Wave Size. 50 - 1500. Default: 800.

-ncolors number

Number of Colors. Default: 192.

-color-shift number

Color Contrast. 0 - 100. Default: 60.

-hue number

Hue of the base color (0-360, as in HSV space.) Default 0, meaning random.

-db | -no-db

Whether to double buffer.

-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.

SEE ALSO

X(1), xscreensaver(1)

COPYRIGHT

Copyright © 2002 by Hannu Mallat. 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

Hannu Mallat.