I prototyped several user OSX user interface animations using Quartz Composer during my time at Apple. It was a great tool for rapid iterations. We would demo t

I prototyped several user OSX user interface animations using Quartz Composer during my time at Apple. It was a great tool for rapid iterations. We would demo to Steve, get feedback and quickly make changes. Before Quartz Composer, Bas Ording would create prototypes using Macromedia Director. He had a nice collection of Lingo routines for various types of animations.