3D engine with modern graphics
Vivid3D is a C++ IDE/3D engine, with python scripting.
HARFANG 3D source code public repository
3D Procedural Modelling and Procedural Texturing Tool in OpenGL/C++
Design your own pottery for 3D printing in full color
Easy creation of normal maps
shader editor
Gimpel3D - 2D/3D Stereo Conversion Editor
3D world editor for game development
Simplified 3D Model Editor, Suitable For Beginners
Pear3DEngine is a modern and modular 3D development framework