However, these features represent the cutting edge of graphics technology at this point in 2015, OpenGL is the only way to get them. Because these extensions have become more ubiquitous, I decided to showcase them. This marks a departure from the previous edition, in which I stayed away from extensions in order to ensure the widest possible user base for the code. The book contains examples of the use of all of these features, some of which are available only on very recent hardware with up-to-date drivers that expose specific extensions. Arrayed indirect draws (multi-draw indirect, or MDI).Zero-copy features enabled by persistent mapped buffers. Some key topics addressed in this latest edition are part of what has become known as the "Approaching Zero Driver Overhead" (AZDO) suite of features: However, I believe there is still a place for the venerable OpenGL, which is why OpenGL SuperBible, Seventh Edition incorporates new features from OpenGL 4.5 and brings in discussion of extensions. I am actually involved in the development of Vulkan, Khronos Group's new graphics and compute API. Over the last few months in 2015, we have heard a lot of talk about new APIs and how they enable new rendering effects and unprecedented performance. OpenGL Superbible: Comprehensive Tutorial and Reference, 7th Edition
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