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XScreenSaver(1)						       XScreenSaver(1)

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]
       [-friction 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.

       -friction number
	       Coefficient of friction (or viscosity.)	Useful values are < 4.
	       Default: 0.8.

       -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 | -no-fps
	       Whether to show a frames-per-second display at  the  bottom  of
	       the screen.

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
       implied warranty.

AUTHOR
       Peter Birtles and Jamie Zawinski.

X Version 11						       XScreenSaver(1)

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