Karsten Schmidt has just posted the source code from the Processing Workshop which I organized at Metropolitan Work with Marcus Bowerman. On Toxiclibs, he explains how to import the files using the java editor Eclipse. I posted some pictures on my website too. Below are couple images and pictures of the workshop:
Above: The Processing façade app which was developed on the second day : Define a façade in plan on the right using a curve, add and control points on the façade with particle physics and use voxels to solidify. More info.