FlightGear Flight Simulator: free open-source multiplatform flight sim
An interactive viewer for three-dimensional chemical structures.
GLScene Engine for Delphi & C++Builder VCL Windows 32/64
High-efficiency minimalist C++ wrapper for OpenGL 4.3
CIRT - CUDA Interactive Ray Tracer
Support for legacy OpenGL in core profiles
crossplatform multithreaded object-oriented render and audio engine
C++ Frontend for the RenderMan Interface
Growth-grammar related Interactive Modelling Platform
Tao3D is a programming language for real-time interactive 3D
3D Charts - Templates for PovRay(TM)
Program for drawing 3D surfaces from parametric equations
Perl bindings to the Modern OpenGL API
3D .NET engine for Windows, Linux, Mac
realtime 3d surface rendering library
Imagin Raytracer is a multithreaded command line raytracer
simple 3d scene viewer for windows/linux/android
Semiautomatic generation of semantic building models from image series
3D game engine for C and C++
Pear3DEngine is a modern and modular 3D development framework