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RedHat 9 (Linux i386) - man page for metaballs (redhat section 1)

XScreenSaver(1) 					      General Commands Manual						   XScreenSaver(1)

NAME
MetaBalls.
SYNOPSIS
MetaBalls [-display host:display.screen] [-visual visual] [-window] [-root] [-ncolors number] [-count number] [-delay number] [-cycles num- ber] [-radius number] [-delta number]
DESCRIPTION
This hack draws 2D metaballs to the screen by calculating the sum of the colors of all metaballs covering a pixel. Ported from the demo effects collection (http://demo-effects.sourceforge.net)
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. -ncolors number Number of Colors. Default: 256. -count number Number of MetaBalls. 2 - 255. Default: 10. -delay number Per-frame delay, in microseconds. Default: 5000 (0.01 seconds.). -cycles number Duration. 100 - 3000. Default: 1000. -radius number MetaBall Radius. 2 - 100. Default: 100. -delta number MetaBall Movement. 1 - 20. Default: 3.
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) 2002-2003 by W.P. van Paassen. 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 soft- ware for any purpose. It is provided "as is" without express or implied warranty.
AUTHOR
W.P. van Paassen X Version 11 XScreenSaver(1)