rd-bomb - reaction/diffusion textures
rd-bomb [-display host:display.screen] [-foreground color] [-background color] [-window]
[-root] [-install] [-visual visual] [-width n] [-height n] [-reaction n] [-diffusion n]
[-size f] [-speed f] [-delay usecs]
The rd-bomb 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.
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".
rd-bomb accepts the following options:
-window Draw on a newly-created window. This is the default.
-root Draw on the root window.
Install a private colormap for the window.
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.
Specify the size of the tile, in pixels.
These are constants in the equations that effect its visual nature. Each may be
one of 0, 1, or 2.
Size of the seed.
Selects a palette. Must be between 0 and 80, inclusive.
-size f What fraction of the window is actively drawn, a floating point number between 0
(exclusive) and 1 (inclusive). Default is 0.66.
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.
How many microseconds to delay between frames; default 1000, or about 1/1000th of
DISPLAY 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.
X(1), xscreensaver(1), xlock(1)
Copyright (C) 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.
Scott Draves <email@example.com>, 9/97
X Version 11 10-May-97 XScreenSaver(1)