Real-time physically based rendering engine for Android, iOS, and more
FlightGear Flight Simulator: free open-source multiplatform flight sim
3D fractal rendering software
Cross Platform Professional Procedural Terrain Generation & Texturing
Design your own pottery for 3D printing in full color
Tao3D is a programming language for real-time interactive 3D
A tool that uses OpenCL to procedurally generate 3D models
Imagin Raytracer is a multithreaded command line raytracer
shader editor
ITK-SNAP static builds for Windows 64-bit(only one file)
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
https://github.com/horde3d/Horde3D
In-flight navigation (and more) for private pilots (Linux).
A C++ library to easily create GUI-editable objects