Appendix C. ES Framework API
The example programs throughout the book use a framework of utility functions for performing common OpenGL ES 3.0 functions. These utility functions are not part of OpenGL ES 3.0, but rather are custom functions that we wrote to support the sample code in the book. The ES Framework API is included with the source code for the book available from the book website at opengles-book.com. The ES Framework API provides routines for tasks such as creating a window, setting up callback functions, loading a shader, loading a program, and creating geometry. The purpose of this appendix is to provide documentation for the ES Framework API functions used throughout the book.
Framework Core Functions
This section provides documentation ...