The following images/animations are the result of my first processing sketch.

This first sketch is a static drawing. I essentially wanted to replicate patterns that I would draw in Photoshop by performing and repeating a transformation. I learned about pushing and popping transformation matrices to perform these transformations.

I then extended this sketch to be dynamic. I initially started by making the background move and shift as the mouse moved and shifted. I then made the color and shading of the shapes change as the mouse moved around the sketch. With both the background moving and the colors/shading changing I found the sketch to be nauseating; there was just too much going on. I fixed the background and added functions to allow the scene to be either automatically changing or change with mouse movement. The change mode can be toggled by clicking on the sketch.