Open Source Solid Modeling CAD
Vivid Engine 2 is an open source 3D Engine coded using C# and C++.
A raytracer that tries to combine simplicity with power.
A performant, flexible, and easy-to-use real-time 3D rendering engine
A Arch Linux x86_64 distro for Structure From Motion
3D game engine for C and C++
Pear3DEngine is a modern and modular 3D development framework
QCSS Player by Shuffle
In-flight navigation (and more) for private pilots (Linux).
A 3D rendering / entity engine
Bruno's RAY Tracing Engine