Copyright by Daniel Schuller

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Chapter 2. Introducing OpenGL

Every computer has special graphics hardware that controls what you see on the screen. OpenGL tells this hardware what to do. Figure 2.1 shows how OpenGL is used by a computer game, or any other piece of software, to issue commands to the graphics hardware using the device drivers supplied by the manufacturer.

The typical use of OpenGL.

Figure 2.1. The typical use of OpenGL.

The Open Graphics Library is one of the oldest, most popular graphics libraries game creators have. It was developed in 1992 by Silicon Graphics Inc. (SGI) but only really got interesting for game players when it was used for GLQuake in 1997. The GameCube, Wii, PlayStation ...

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