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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]
       [--cycles 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  sec-
	       onds.).

       --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
	       resources 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,
       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 no-
       tice 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
       W.P. van	Paassen

X Version 11		      6.09 (07-Jun-2024)		   eruption(6)

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