Utility libraries built on top of OpenGL.
https://en.wikipedia.org/wiki/OpenGL_Utility_Library
Functions prefixed with glu
Mesa implements it apparently, e.g. dpkg
shows libglu1-mesa
.
https://en.wikipedia.org/wiki/OpenGL_Extension_Wrangler_Library
C++ Mathematics useful for OpenGL.
C alternatives?
C image to textures.
http://www.lonesock.net/soil.html
https://en.wikipedia.org/wiki/OGRE
OpenGL wrapper.
Not a full game engine.
Supports multiple backends, including Direct3D as well, possibly giving more portability / performance.
Even if you forget portability, it makes it easier to use OpenGL with some more convenient primitives. E.g.:
- it can draw a sphere: http://www.ogre3d.org/docs/api/1.9/class_ogre_1_1_sphere.html
MIT license.