eruption (6x) - Linux Manuals

eruption: eruption of pieces of hot volcanic rock


Eruption - eruption of pieces of hot volcanic rock


Eruption [-display host:display.screen] [-visual visual] [-window] [-root] [-ncolors number] [-nParticles number] [-Heat number] [-Cooling number] [-Gravity number] [-delay number] [-cycles number] [-fps]


This hack creates an eruption of pieces of hot volcanic rock. Ported from the demo effects collection (


-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.
Draw on a newly-created window. This is the default.
Draw on the root 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.
Display the current frame rate and CPU load.


to get the default host and display number.
to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property.


Copyright © 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.


W.P. van Paassen


X(1), xscreensaver(1)