rd-bomb(6x)

📦 version 5.45, in ubuntu jammy

💖 rd-bomb — reaction/diffusion textures 💖

okay bestie, sit down, because this is genuinely one of the prettiest things in the whole XScreenSaver manual and I need you to be normal about it. it's rd-bomb, from the XScreenSaver manual, and it makes reaction/diffusion textures — like, actual chemical-reaction-looking patterns blooming all over your screen. no cap. 🧪✨

✨ 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 millisecs]
[-fps]

look at her. she's got range. 💅

🌸 DESCRIPTION 🌸

so rd-bomb draws reaction/diffusion textures. that's the whole vibe. 🔥

the code is derived from the 'd' mode of the "bomb" visual musical instrument — you can peep it at http://www.cs.cmu.edu/~spot/bomb.html. and the equations? got them 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.

academic baddie behaviour honestly. 📚👑

real talk though, bestie: 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. don't just sit there suffering. 😭

🎀 OPTIONS 🎀

first things first, this is important: 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. chaos mode activated, we love her. 🎲

and be sure to try this, like, for real:

-speed 1 -size 0.1 -epoch 3000

okay and rd-bomb accepts the following options:

  • -window — draw on a newly-created window. this is the default, so if you do nothing, you already did this. main character energy. 👑
  • -root — draw on the root window. yes, the whole entire desktop. go big. 🌈
  • -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. (yes these two share a description, they're a package deal, they're holding hands 🫶)
  • *-reaction *n
  • -diffusion n — 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.
  • -radius n — size of the seed.
  • -size f — what fraction of the window is actively drawn, a floating point number between 0 (exclusive) and 1 (inclusive). default is 1.0.
  • -speed f — 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. 👀
  • -delay millisecs — how many milliseconds to delay between frames; default 1, or about 1/1000th of a second. she is fast.
  • -fps — display the current frame rate and CPU load. the little numbers. the stats. obsessed. 📊

🦋 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)

iykyk. 💜

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, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation.

✍️ AUTHOR ✍️

Scott Draves <spot@cs.cmu.edu>, 9/97

okay that's the whole thing, bestie, you're officially educated 💖

this lil masterpiece lives in X Version 11, version 5.45, dated 08-Dec-2020, and she answers to the name rd-bomb(6x) — go forth and make your screen look like a very expensive science experiment. periodt. 💅✨🎀

📦 where this page comes from