fluidballs(6) XScreenSaver manual fluidballs(6) NAME fluidballs - the physics of bouncing balls. SYNOPSIS fluidballs [--display host:display.screen] [--visual visual] [--window] [--root] [--window-id number] [--count number] [--size number] [--gravity number] [--wind number] [--elasticity number] [--delay number] [--nonran- dom] [--no-shake] [--fps] DESCRIPTION Models the physics of bouncing balls, or of particles in a gas or fluid, depending on the settings. If "Shake Box" is selected, then every now and then, the box will be rotated, changing which direction is down (in order to keep the settled balls in motion.) 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. --window-id number Draw on the specified window. --count number How many balls to display. Default: 300. --size number Maximum size of each ball. Default: 25. --gravity number Coefficient of gravity. Useful values are < 0.1. Default: 0.01. --wind number Wind. Useful values are < 0.1. Default: 0.00. --elasticity number Coefficient of elasticity. Useful values are 0.2 to 1.0. Default: 0.97. Lower numbers make less bouncy balls. --delay number Per-frame delay, in microseconds. Default: 10000 (0.01 seconds.). --nonrandom Make all balls be the same size. --no-nonrandom Make the balls be random sizes. Default. --shake | --no-shake Whether to shake the box if the system seems to have settled down. "Shake" means "change the direction of Down." --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 re- sources stored in the RESOURCE_MANAGER property. XSCREENSAVER_WINDOW The window ID to use with --root. SEE ALSO X(1), xscreensaver(1) COPYRIGHT Copyright (C) 2002 by Peter Birtles and Jamie Zawinski. 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 copy- right notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation. No representa- tions are made about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty. AUTHOR Peter Birtles, Jamie Zawinski, and Steven Barker. X Version 11 6.15 (30-Mar-2026) fluidballs(6)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | ENVIRONMENT | SEE ALSO | COPYRIGHT | AUTHOR
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