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
               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
               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
       notice 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                  6.08 (10-Oct-2023)                   eruption(6)