fluidballs(6x) XScreenSaver manual fluidballs(6x)
NAME
fluidballs - the physics of bouncing balls.
SYNOPSIS
fluidballs [-display host:display.screen] [-visual visual] [-window]
[-root] [-count number] [-size number] [-gravity number] [-wind number]
[-elasticity number] [-delay number] [-nonrandom] [-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 ev-
ery 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.
-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. De-
fault: 0.97. Lower numbers make less bouncy balls.
-delay number
Per-frame delay, in microseconds. Default: 10000 (0.01 sec-
onds.).
-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
resources stored in the RESOURCE_MANAGER property.
SEE ALSO
X(1), xscreensaver(1)
COPYRIGHT
Copyright © 2002 by Peter Birtles and Jamie Zawinski. Permission to
use, copy, modify, distribute, and sell this software and its documen-
tation for any purpose is hereby granted without fee, provided that the
above copyright notice appear in all copies and that both that copy-
right notice and this permission notice appear in supporting documenta-
tion. No representations are made about the suitability of this soft-
ware for any purpose. It is provided "as is" without express or im-
plied warranty.
AUTHOR
Peter Birtles, Jamie Zawinski, and Steven Barker.
X Version 11 5.45 (08-Dec-2020) fluidballs(6x)
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