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.


W.P. van Paassen