PHIGS (Programmer's Hierarchical Interactive Graphics System)
a java based software to convert 2D to 3D images.
3D game engine for C and C++
A small library to create SDL 2 - OpenGL applications.
An object oriented 3D graphics API on top of OpenGL
Pear3DEngine is a modern and modular 3D development framework
Collections of abstractions for Pure Data
PNNL Waterfall Visualization Tool
Multi-Language Wrapper Collection for the Irrlicht Engine
A C++ library to easily create GUI-editable objects