OpenGL is a 3D graphics API available on Windows and Unix.
J uses the API with cd (shared library call) and the J programmer has the same access as a C programmer.
For examples, see the demo Studio|Demos...|opengl. In the demo, click the Definition button to view and experiment with the OpenGL definitions.
For an overview of the facilities, see labs Studio|Labs...|OpenGL Introduction and Studio|Labs...|OpenGL Utilities.
Additonal examples and documentation are in wiki page OpenGL.