Duchamp's Rotative Demisphére

For our first project, we had to recreate a piece of art using Processing. I chose Marcel Duchamp's Rotative Demisphére´, as seen below. Came out pretty cool, and I gave the center piece actual rotation. The actual piece, followed by my recreation:

           

Download link to the application and code: https://docs.google.com/file/d/0B_5Hamygr-o7MG9BZkNfdE0xYTQ/edit