5.3. Layer Animation

While Quartz Core proved useful in the previous section to glue a Core Surface buffer to the user interface, its capabilities extend far beyond a mere sticky layer. Quartz Core can be used to transform a 2-D object into a stunning 3-D texture that can be used to create beautiful transitions between views.

Chapter 3 introduced the UITransitionView class as a means of transitioning between different UIView objects. This class offered some basic animation, but was largely two-dimensional. The Quartz Core framework provides a more advanced set of tools for performing layer animation, allowing more spectacular transitions.