NAME

Eruption - eruption of pieces of hot volcanic rock

SYNOPSIS

Eruption [-display host:display.screen] [-visual visual] [-window] [-root] [-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. 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.

-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.

SEE ALSO

X(1), xscreensaver(1)

COPYRIGHT

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.

AUTHOR

W.P. van Paassen