metaballs - Man Page

draws 2D metaballs


MetaBalls [-display host:display.screen] [-visual visual] [-window] [-root] [-ncolors number] [-count number] [-delay number] [-cycles number] [-radius number] [-delta number] [-fps]


This hack draws 2D metaballs to the screen by calculating the sum of the colors of all metaballs covering a pixel.


-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.

-ncolors number

Number of Colors.  Default: 256.

-count number

Number of MetaBalls. 2 - 255.  Default: 10.

-delay number

Per-frame delay, in microseconds.  Default: 5000 (0.005 seconds.).

-cycles number

Duration.  100 - 3000.  Default: 1000.

-radius number

MetaBall Radius.  2 - 100.  Default: 100.

-delta number

MetaBall Movement.  1 - 20.  Default: 3.


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),


W.P. van Paassen


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