1 .TH XScreenSaver 1 "" "X Version 11"
3 fluidballs - the physics of bouncing balls.
6 [\-display \fIhost:display.screen\fP]
7 [\-visual \fIvisual\fP]
10 [\-count \fInumber\fP]
12 [\-gravity \fInumber\fP]
14 [\-friction \fInumber\fP]
15 [\-delay \fInumber\fP]
20 Models the physics of bouncing balls, or of particles in a gas or fluid,
21 depending on the settings. If "Shake Box" is selected, then every now and
22 then, the box will be rotated, changing which direction is down (in order
23 to keep the settled balls in motion.)
26 .B \-visual \fIvisual\fP
27 Specify which visual to use. Legal values are the name of a visual class,
28 or the id number (decimal or hex) of a specific visual.
31 Draw on a newly-created window. This is the default.
34 Draw on the root window.
36 .B \-count \fInumber\fP
37 How many balls to display. Default: 300.
39 .B \-size \fInumber\fP
40 Maximum size of each ball. Default: 25.
42 .B \-gravity \fInumber\fP
43 Coefficient of gravity. Useful values are < 0.1. Default: 0.01.
45 .B \-wind \fInumber\fP
46 Wind. Useful values are < 0.1. Default: 0.00.
48 .B \-friction \fInumber\fP
49 Coefficient of friction (or viscosity.) Useful values are < 4. Default: 0.8.
51 .B \-delay \fInumber\fP
52 Per-frame delay, in microseconds. Default: 10000 (0.01 seconds.).
55 Make all balls be the same size.
58 Make the balls be random sizes. Default.
60 .B \-shake | \-no-shake
61 Whether to shake the box if the system seems to have settled down.
62 "Shake" means "change the direction of Down."
65 Whether to show a frames-per-second display at the bottom of the screen.
70 to get the default host and display number.
73 to get the name of a resource file that overrides the global resources
74 stored in the RESOURCE_MANAGER property.
79 Copyright \(co 2002 by Peter Birtles and Jamie Zawinski. Permission to
80 use, copy, modify, distribute, and sell this software and its
81 documentation for any purpose is hereby granted without fee, provided
82 that the above copyright notice appear in all copies and that both that
83 copyright notice and this permission notice appear in supporting
84 documentation. No representations are made about the suitability of
85 this software for any purpose. It is provided "as is" without express
88 Peter Birtles and Jamie Zawinski.