| 1 | .TH XScreenSaver 1 "" "X Version 11" |
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| 2 | .SH NAME |
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| 3 | Eruption. |
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| 4 | .SH SYNOPSIS |
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| 5 | .B Eruption |
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| 6 | [\-display \fIhost:display.screen\fP] |
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| 7 | [\-visual \fIvisual\fP] |
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| 8 | [\-window] |
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| 9 | [\-root] |
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| 10 | [\-ncolors \fInumber\fP] |
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| 11 | [\-nParticles \fInumber\fP] |
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| 12 | [\-Heat \fInumber\fP] |
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| 13 | [\-Cooling \fInumber\fP] |
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| 14 | [\-Gravity \fInumber\fP] |
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| 15 | [\-delay \fInumber\fP] |
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| 16 | [\-cycles \fInumber\fP] |
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| 17 | .SH DESCRIPTION |
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| 18 | This hack creates an eruption of pieces of hot volcanic rock. |
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| 19 | Ported from the demo effects collection (http://demo-effects.sourceforge.net) |
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| 20 | .SH OPTIONS |
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| 21 | .TP 8 |
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| 22 | .B \-visual \fIvisual\fP |
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| 23 | Specify which visual to use. Legal values are the name of a visual class, |
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| 24 | or the id number (decimal or hex) of a specific visual. |
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| 25 | .TP 8 |
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| 26 | .B \-window |
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| 27 | Draw on a newly-created window. This is the default. |
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| 28 | .TP 8 |
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| 29 | .B \-root |
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| 30 | Draw on the root window. |
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| 31 | .TP 8 |
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| 32 | .B \-ncolors \fInumber\fP |
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| 33 | Number of Colors. Default: 256. |
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| 34 | .TP 8 |
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| 35 | .B \-particles \fInumber\fP |
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| 36 | Number of Particles. Default: 300. |
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| 37 | .TP 8 |
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| 38 | .B \-cooloff \fInumber\fP |
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| 39 | Eruption Cooloff. Default: 2. |
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| 40 | .TP 8 |
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| 41 | .B \-heat \fInumber\fP |
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| 42 | Heat of Eruption. Default: 256. |
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| 43 | .TP 8 |
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| 44 | .B \-gravity \fInumber\fP |
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| 45 | Gravity. Default: 1. |
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| 46 | .TP 8 |
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| 47 | .B \-delay \fInumber\fP |
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| 48 | Per-frame delay, in microseconds. Default: 5000 (0.01 seconds.). |
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| 49 | .TP 8 |
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| 50 | .B \-cycles \fInumber\fP |
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| 51 | Duration. 10 - 3000. Default: 80. |
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| 52 | .SH ENVIRONMENT |
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| 53 | .PP |
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| 54 | .TP 8 |
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| 55 | .B DISPLAY |
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| 56 | to get the default host and display number. |
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| 57 | .TP 8 |
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| 58 | .B XENVIRONMENT |
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| 59 | to get the name of a resource file that overrides the global resources |
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| 60 | stored in the RESOURCE_MANAGER property. |
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| 61 | .SH SEE ALSO |
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| 62 | .BR X (1), |
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| 63 | .BR xscreensaver (1) |
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| 64 | .SH COPYRIGHT |
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| 65 | Copyright \(co 2002-2003 by W.P. van Paassen. Permission to use, copy, modify, |
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| 66 | distribute, and sell this software and its documentation for any purpose is |
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| 67 | hereby granted without fee, provided that the above copyright notice appear |
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| 68 | in all copies and that both that copyright notice and this permission notice |
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| 69 | appear in supporting documentation. No representations are made about the |
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| 70 | suitability of this software for any purpose. It is provided "as is" without |
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| 71 | express or implied warranty. |
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| 72 | .SH AUTHOR |
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| 73 | W.P. van Paassen |
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