DragonFly On-Line Manual Pages

fluidballs(6)                 XScreenSaver manual                fluidballs(6)

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
       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.

       -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
               resources stored in the RESOURCE_MANAGER property.

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 copyright notice appear in all copies and that both that
       copyright notice and this permission notice appear in supporting
       documentation.  No representations 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                  5.34 (24-Oct-2015)                 fluidballs(6)