Of the original 100 Processing works approximately 90% of them have a “source code” link, allowing you to see the logic behind what you are looking at. You can take any of these ideas and experiment with them just by downloading Processing and copy/pasting the source into a script window.

All the code is licensed under a Creative Commons 3.0 License (Attribution – NonCommerical – ShareAlike) which basically means you are free to use it as long as you:
1. give http://www.zenbullets.com a credit
2. don’t use it for commercial gain
3. share anything created with it in the same way I have

If you do something cool with any of these scripts, I’d love to hear about it.

http://en.wikipedia.org/wiki/Open_source
http://www.opensource.org/
http://zenbullets.com/blog/?cat=28