Playing around with 3D lighting in Quartz Composer. Shadows are rendered somewhat lamely, but still very cool for any sort of experimenting, prototyping, or less critical interactive components. In this demo I was testing out my custom Quartz nodes (Editor -> Add to Library ) for my Korg nanoKontrol MIDI control to manipulate parameters on the fly. Apologies for the crappy audio, my computer fans were blasting and I was too lazy to plug in a mic. Recorded with the most excellent Syphon Recorder.