rd-bomb man page on DigitalUNIX
[printable version]
XScreenSaver(1) XScreenSaver(1)
NAME
rd-bomb - reaction/diffusion textures
SYNOPSIS
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]
DESCRIPTION
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 xmor‐
phia (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.
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 appropri‐
ate 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
Install a private colormap for the window.
-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.
-width n
-height n
Specify the size of the tile, in pixels.
-reaction n
-diffusion n
These are constants in the equations that effect its visual
nature. Each may be one of 0, 1, or 2.
-radius n
Size of the seed.
-palette n
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.
-speed f
When a fraction of the screen is active, the active area moves
at this rate (a floating point number). Default is zero. Sug‐
gested value: 1.0.
-delay usecs
How many microseconds to delay between frames; default 1000, or
about 1/1000th of a second.
ENVIRONMENT
DISPLAY to get the default host and display number.
XENVIRONMENT
to get the name of a resource file that overrides the global
resources stored in the RESOURCE_MANAGER property.
SEE ALSO
X(1), xscreensaver(1), xlock(1)
COPYRIGHT
Copyright © 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, pro‐
vided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in sup‐
porting documentation.
AUTHOR
Scott Draves <spot@cs.cmu.edu>, 9/97
X Version 11 10-May-97 XScreenSaver(1)
[top]
List of man pages available for DigitalUNIX
Copyright (c) for man pages and the logo by the respective OS vendor.
For those who want to learn more, the polarhome community provides shell access and support.
[legal]
[privacy]
[GNU]
[policy]
[cookies]
[netiquette]
[sponsors]
[FAQ]
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
|
|
Vote for polarhome
|
