Open game and rendering engine packed into a JavaScript framework
Vivid3D is a C++ IDE/3D engine, with python scripting.
Design your own pottery for 3D printing in full color
shader editor
A world editor for HGE game engine written in python and uses OpenGL.
Gimpel3D - 2D/3D Stereo Conversion Editor
VB6 Raytracer
3D world editor for game development
Pear3DEngine is a modern and modular 3D development framework
1st 3D game engine built in C# for .NET, Visual3D Engine's predecessor