In this coding challenge, I attempt to code the Menger Sponge (fractals) using Processing.
- Wikipedia article about the Menger Sponge Fractal 
- Processing reference on using the P3D renderer 
- Processing reference about ArrayList 
- Live Stream with Menger Sponger in Processing 
- My videos accompanying the Nature of Code chapter on fractals. 
- Editingby Mathieu Blanchette 
- Animationsby Jason Heglund 
