In the previous tutorial, we showed you how to mask a sprite with Cocos2D 1.0. This method worked OK, but it had some drawbacks – it bloated our texture memory and had a performance hit for the drawing. But with Cocos2D 2.0 and OpenGL ES 2.0, we can do this much more efficiently by writing a custom shader! This tutorial will be our first foray into the new and exciting Cocos2D 2.0 branch. You’ll l