ftp://ftp.smr.ru/pub/0/FreeBSD/releases/distfiles/xscreensaver-3.16.tar.gz

[xscreensaver] / local / man / man.1 / rd-bomb.1

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-.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 \fIusecs\fP]
-.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.  
-.TP 8
-.B \-radius \fIn\fP
-Size of the seed.
-.TP 8
-.B \-palette \fIn\fP
-Selects a palette.  Must be between 0 and 80, inclusive.
-.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 0.66.
-.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 \fIusecs\fP
-How many microseconds to delay between frames; default 1000, or 
-about 1/1000th of a second.
-.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