The lex engine is a completely custom game engine written in C++, it uses 'GLFW' for windowing, and 'GLEW' for the OpenGL function pointers. Starting out as a exercise for learning how to architect a game engine. This project evolved and is now used as a basis of some of my game projects and applications.
Mesh Loading and Saving
GPU Mesh Skinning
Dynamic Mesh Generation
Shader and Material system
Debug Drawing for prototyping UI and 3D graphics applications.