Gloss-Caustic Shading
Matt Gallagher recently wrote a very useful article about drawing gloss gradients using Core Graphics. In his article, Matt describes how to reproduce the oft-seen glossy gradient effect. Thanks Matt! It’s a nice article. “Cocoa with Love” lovingly provides the working source code. This little article aims to complement Matt’s work.
I’ve also re-factored the software and packaged the result within an Objective-C class called RRGlossCausticShader. This packaging automatically adds support for key-value coding and observing. Bindings then let you easily wrap the class within a little application able to adjust the many parameters interactively.