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diff --git a/hacks/rd-bomb.man b/hacks/rd-bomb.man new file mode 100644 index 0000000..4022a43 --- /dev/null +++ b/hacks/rd-bomb.man @@ -0,0 +1,100 @@ +.TH XScreenSaver 1 "10-May-97" "X Version 11" +.SH NAME +rd-bomb - reaction/diffusion textures +.SH SYNOPSIS +.B rd-bomb +[\-display \fIhost:display.screen\fP] [\-foreground \fIcolor\fP] +[\-background \fIcolor\fP] [\-window] [\-root] [\-install] +[\-visual \fIvisual\fP] [\-width \fIn\fP] [\-height \fIn\fP] +[\-reaction \fIn\fP] [\-diffusion \fIn\fP] +[\-size \fIf\fP] [\-speed \fIf\fP] [\-delay \fImillisecs\fP] +[\-fps] +.SH DESCRIPTION + +The \fIrd-bomb\fP program draws reaction/diffusion textures. The code +is derived from the 'd' mode of the "bomb" visual musical instrument +(see http://www.cs.cmu.edu/~spot/bomb.html). I got the equations from +xmorphia (http://www.ccsf.caltech.edu/ismap/image.html), which is +based on a version of the Gray-Scott model taken from: + John E. Pearson "Complex Patterns in a Simple System" + Science, 261,189, 9 July 1993. + +If the frame-rate is too low, consider decreasing the width and height +of the tile, or decreasing the size of the active part of the screen. + +.SH OPTIONS + +If one of the reaction, diffusion, radius, and palette options is set +to a negative value, then that option will be set to a random +appropriate value. + +Be sure to try "-speed 1 -size 0.1 -epoch 3000". + +.I rd-bomb +accepts the following options: +.TP 8 +.B \-window +Draw on a newly-created window. This is the default. +.TP 8 +.B \-root +Draw on the root window. +.TP 8 +.B \-install +Install a private colormap for the window. +.TP 8 +.B \-visual \fIvisual\fP +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. +.TP 8 +.B \-width \fIn\fP +.TP 8 +.B \-height \fIn\fP +Specify the size of the tile, in pixels. +.TP 8 +.B \-reaction \fIn\fP +.TP 8 +.B \-diffusion \fIn\fP +These are constants in the equations that effect its visual nature. +Each may be one of 0, 1, or 2. Default is -1: these constants are +chosen randomly. +.TP 8 +.B \-radius \fIn\fP +Size of the seed. +.TP 8 +.B \-size \fIf\fP +What fraction of the window is actively drawn, a floating point number +between 0 (exclusive) and 1 (inclusive). Default is 1.0. +.TP 8 +.B \-speed \fIf\fP +When a fraction of the screen is active, the active area moves at this +rate (a floating point number). Default is zero. Suggested value: 1.0. +.TP 8 +.B \-delay \fImillisecs\fP +How many milliseconds to delay between frames; default 1, or +about 1/1000th of a second. +.TP 8 +.B \-fps +Display the current frame rate and CPU load. +.SH ENVIRONMENT +.PP +.TP 8 +.B DISPLAY +to get the default host and display number. +.TP 8 +.B XENVIRONMENT +to get the name of a resource file that overrides the global resources +stored in the RESOURCE_MANAGER property. +.SH SEE ALSO +.BR X (1), +.BR xscreensaver (1), +.BR xlock (1) +.SH COPYRIGHT +Copyright \(co 1997 by Scott Draves. + +Permission to use, copy, modify, and distribute this software and its +documentation for any purpose and without fee is hereby granted, +provided that the above copyright notice appear in all copies and that +both that copyright notice and this permission notice appear in +supporting documentation. +.SH AUTHOR +Scott Draves <spot@cs.cmu.edu>, 9/97 |