Embedding Freetype for iOS projects
Freetype is a font library written in C. From OpenGL’s point of view, it creates alpha texture on the fly for any font size for any string.
OpenGL Texture Coordinates
Let’s talk about OpenGL Texture Coordinates. Whenever we need to render a bitmap image using OpenGL, we need to pass in something called the texture coordinates to the GPU.
Multiple inheritance in ObjC via Message Forwarding
I don’t know how many people know that a sort of very intelligent Multiple inheritance is available with Objective-C.
Converting texture coordinates from iOS to OpenGL coordinate system
One thing I realized at a very early stage is the importance of using a Texture Atlas or Sprite Sheet compared to individual images. If you haven’t yet, I recommend doing it now and realizing the benefits later.
Singleton vs Class Methods: ObjC
Every sometime you might get into a situation with your design pattern, that you might have this inevitable desire to use a Singleton class, or maybe you are coming from C++ background and are much used to it.