Vertex Buffers — An API for submitting extensible arrays of vertex
attributes to OpenGL in a way that aims to minimise
copying or reformatting of the original data.
Materials — Fuctions for creating and manipulating materials
About COGL
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.