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eruption(6)		       XScreenSaver manual		     eruption(6)

NAME
     eruption - eruption of pieces of hot volcanic rock

SYNOPSIS
     eruption	[--display  host:display.screen]  [--visual  visual]  [--window]
     [--root] [--window-id  number]  [--ncolors  number]  [--nParticles  number]
     [-Heat  number] [-Cooling number] [-Gravity number] [--delay number] [--cy-
     cles number] [--fps]

DESCRIPTION
     This hack creates an eruption of pieces of hot volcanic rock.

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.

     --window-id number
	     Draw on the specified window.

     --ncolors number
	     Number of Colors.	Default: 256.

     --particles number
	     Number of Particles. Default: 300.

     --cooloff number
	     Eruption Cooloff. Default: 2.

     --heat number
	     Heat of Eruption. Default: 256.

     --gravity number
	     Gravity. Default: 1.

     --delay number
	     Per-frame delay, in microseconds.	Default: 5000 (0.01 seconds.).

     --cycles number
	     Duration.	10 - 3000.  Default: 80.

     --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  re-
	     sources stored in the RESOURCE_MANAGER property.

     XSCREENSAVER_WINDOW
	     The window ID to use with --root.

SEE ALSO
     X(1), xscreensaver(1),
     https://demo-effects.sourceforge.net/

COPYRIGHT
     Copyright (C) 2002-2003 by W.P. van Paassen.  Permission to use, copy, mod-
     ify,  distribute, and sell this software and its documentation for any pur-
     pose is hereby granted without fee, provided that the above  copyright  no-
     tice appear in all copies and that both that copyright notice and this per-
     mission  notice appear in supporting documentation.  No representations are
     made about the suitability of this software for any purpose.   It	is  pro-
     vided "as is" without express or implied warranty.

AUTHOR
     W.P. van Paassen

X Version 11		       6.15 (30-Mar-2026)		     eruption(6)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=eruption&sektion=6&manpath=FreeBSD+Ports+15.1.quarterly>

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