What is OpenGL ES and Why Should I Care?
OpenGL ES is an industry standard for (3D) graphics programming. It is especially targeted at mobile and embedded devices. It is maintained by the Khronos Group, which is a conglomerate including ATI, NVIDIA, and Intel; together, these companies define and extend the standard.
Speaking of standards, there are currently three incremental versions of OpenGL ES: 1.0, 1.1, and 2.0. We are concerned with the first two in this book. All Android devices support OpenGL ES 1.0, and most also support version 1.1, which adds some new features to the 1.0 specification. OpenGL ES 2.0, however, breaks compatibility with the 1.x versions. You can use either 1.x or 2.0, but not both at the same time. The reason for this ...
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