Graphics Environment for Multimedia

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GEM (Graphics Environment for Multimedia) is a collection of externals (libraries) that provide OpenGL graphics functionality to pure data, a graphical programming language for real-time audio processing. It is free under the GPL.

Originally written by Mark Danks of Electronic Arts, it is now maintained by Iohannes M. Zmölnig of the Institut für Elektronische Musik und Akustik. It used to be (but is no longer) partially supported by a grant from the Intel Research Council for the The Global Visual Music project of Vibeke Sorensen, Miller Puckette and Rand Steiger.

The externals provide support for many objects, such as polygon graphics, lighting, texture mapping, image processing, and camera motion.

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