interference - Man Page

decaying sinusoidal waves


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]


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


-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.


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


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.


Display the current frame rate and CPU load.



to get the default host and display number.


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)


Hannu Mallat.


6.04-1.fc37.1 (23-Jul-2022) X Version 11 XScreenSaver manual