COGL is a low level OpenGL abstraction library developed for (and part of) Clutter. It is used primarily by Clutter to provide a common rendering API that works transparently across OpenGL >=1.4, OpenGL ES 1.1 and OpenGL ES 2.0.
Note the API references are usually available as packages in the distributions and visible via the Devhelp tool.
This documentation is generated from the following tarball: clutter