UML Tool for Fast UML Diagrams. Welcome to MercurialEclipse. Overview. OpenGL - The Industry's Foundation for High Performance Graphics Most Widely Adopted Graphics Standard OpenGL is the premier environment for developing portable, interactive 2D and 3D graphics applications. Since its introduction in 1992, OpenGL has become the industry's most widely used and supported 2D and 3D graphics application programming interface (API), bringing thousands of applications to a wide variety of computer platforms. PyDev.