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cloudlife - Man Page

a cellular automaton based on Conway's Life


cloudlife [--display host:display.screen] [--foreground color] [--background color] [--window] [--root] [--window-id number][--mono] [--install] [--visual visual] [--ncolors integer] [--cycle-delay microseconds] [--cycle-colors integer][--cell-size integer] [--initial-density integer] [--max-age integer]



The cloudlife program draws a cellular automaton based on Conway's Life, except that cells have a maximum age, and only one pixel per cell is drawn every tick.


cloudlife accepts the following options:


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


Draw on the root window.

--window-id number

Draw on the specified window.


If on a color display, pretend we're on a monochrome display.


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.

--cycle-delay integer

Time in microseconds to sleep between ticks.  Default 25000.

--cycle-colors integer

How many ticks should elapse between cycling colors.  0 to disable color cycling.  Default 2.

--ncolors integer

How many colors should be used (if possible).  Default 64. The colors are chosen randomly.

--cell-size integer

Size of each cell, in powers of 2.  Default 3 (8-pixel cells).

--initial-density integer

Percentage of cells that are alive at start and when the field is repopulated.  Default 30.  

--max-age integer

Maximum age for a cell.  Default 64.


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.


The window ID to use with --root.

See Also

X(1), xscreensaver(1), xlock(1)


Don Marti <dmarti@zgp.org> 20 May 2003.  


6.09-1.fc41 (11-Jun-2024) X Version 11 XScreenSaver manual