What type of API is OpenGL? -


Some APIs are pure specification, while some others (such as Windows APIs) also come with their own implementation (do I Right?).

I know that there is nothing about OpenGL and to start, I want to know that the above two types of APIs are OpenGL? I mean, how can I use it in different platforms? Do I have to search the Internet and get an implementation, or have such a OpenGL done already?

OpenGL is a pure specification API

Implementation provided by Graphics Card Driving, so if you want to start programming with OpenGL, the first thing to do is to update drivers for your card.

Not specified in OpenGL only (which is necessary to do anything with it)

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