C++ header-only library that simulates GLSL math
A basic math model of 3D system
Lightweight and modular C++11 graphics middleware for data and games
Gphoton in a simple 3d modeler and ray tracer.
A public domain cross platform 3D game
Multimedia asset management and manipulator for Étoilé
Free vector,quaternion,matrix math library
A 3D rendering / entity engine
Obsolete: use https://github.com/VMML/vmmlib