OpenGL Utility Library
OpenGL utility library ( GLU) is a graphics library. Sitting up on OpenGL GLU provides graphics functions of higher level. It is part of the OpenGL package.
There are three major implementations of GLU:
- Mesa GLU, GLU implements 1.2 and was abandoned in favor of Mesa SGI GLU
- Containing GLU in Microsoft Windows, implemented GLU 1.2
- SGI GLU, GLU 1.3 implemented