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: 4.
-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: 128.
-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.

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