Shows the use of the CoreAnimation and QuartzComposition QCCompositionLayer.
For a full description of the program and the original article point your browser here:
Core Animation Tutorial

There are two menu options you can access from the View menu item.

• Switch View - which will switch between the to Quartz Compositions.
• Use Filters - which toggles the use of filters being applied to the layer or not.

Ported to Xamarin.Mac by Kenneth J. Pouncey.