procedural-wallpapers

A collection of wallpaper generators

How to use (Linux only)

1. sudo apt-get install gcc imagemagick
2. git clone https://github.com/ba-sz-at/procedural-wallpapers.git
3. cd procedural-wallpapers/src
4. Open lib/main.h for editing.
5. Change WID and HEI to the width and height of your screen (pixels), and save.
6. ./wp-gen
7. The previous command should have generated a wallpaper.jpg in src/out. Set it as your desktop background.
8. Add the wp-gen script to your startup applications. This will change your wallpaper at each startup.

Generators

Clouds Perlin noise fed into a sigmoid function.	Fern Barnsley fern with mutation.
Flow Perlin flow field.	Islands Perlin noise fed into a cutoff function.
Landscape (original source) Simulated erosion using a midpoint displacement technique.	Lightning Similar to a Brownian tree but faster to generate.
Marrowlike (original source) If a pixel is too dark, give it a random brightness. Scale to double size. Repeat.	Mesh Transformations of the complex plane.
Tangles Rec-tangles.	Water Very simple interference pattern generator.
Wood Modular Perlin noise stretched along the x axis.	Zebra The same complex function as in the Mesh program, but from a different perspective.

Disclaimers

• The landscape generator is shamelessly stolen from here: https://tyrellrummage.github.io/landscape/
• The marrowlike generator follows the recursive algorithm described here: http://pcg.wikidot.com/forum/t-79282/multiplicative-cascades-ish
• The fern generator uses a fractal image compression method that might be patented (I couldn't find much information about it)

Licensing

All programs, except for those listed in the Disclaimers section, are in the public domain.