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Leopard Technical Notes: Graphics & Imaging
OpenGL is a cross-platform, standards-based C programming interface that is widely used for games, animation, CAD/CAM, medical imaging, and other applications that need a framework for visualizing and manipulating complex, three-dimensional shapes. OpenGL programs are highly portable and produce consistent results on any supported platform. Apple's implementation of OpenGL has been optimized for the Macintosh platform and includes a suite of ARM and platform-specific extensions that give developers access to advanced graphics hardware capabilities.

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OpenGL Performance Optimization : The Basics (HTML)
TN2093: This document describes some of the concepts and techniques for optimizing performance in OpenGL applications.
2008-11-05
Real world profiling with the OpenGL Profiler (HTML)
TN2178: This document describes how to use OpenGL Profiler, a very powerful tool for your OpenGL development.
2008-09-16
Enabling multi-threaded execution of the OpenGL framework (HTML)
TN2085: OpenGL on Intel-based Macintosh systems can use multi-threading to increase the performance of CPU-bound OpenGL-based applications.
2006-11-07
OpenGL Release Highlights - Mac OS X 10.3 Panther (HTML)
TN2131: Contains a list of bugs along with a short description on a release-by-release basis
2005-02-04
Understanding and Detecting OpenGL Functionality (HTML)
TN2080: Discusses OpenGL API design, and how to access the full power of hardware and software renderers.
2003-12-29