iOS Programming

OpenGL Datatypes The first thing we'll talk about are OpenGL's datatypes. Because OpenGL is a cross-platform API, and the size of datatypes can vary depending on the programming language being used as well as the underlying processor (64-bit vs. 32-bit vs 16-bit), OpenGL declares its own custom datatypes. When passing values into OpenGL, you should always use these OpenGL datatypes to make sure that you are passing values of the right size or precision. Failure to do so could cause unexpected results or slowdowns caused by data conversion at runtime. Every implementation of OpenGL, regardless of platform or language, declares the standard OpenGL datatypes in such a way that they will be the same size on every platform, making porting OpenGL code from one platform to another easier. Here are the OpenGL ES datatypes: GLenum : An unsigned integer used for GL-specific enumerations. Most commonly used to tell OpenGL the type of data stored in an array passed by pointer (e....