Open Source Solid Modeling CAD
Realtime raytracer using SIMD on ARM, MIPS, PPC and x86
Viewer and exporter for Unreal Engine 1-4 assets
Vivid Engine 2 is an open source 3D Engine coded using C# and C++.
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
PixelLight is a cross-platform application framework
In-flight navigation (and more) for private pilots (Linux).
The software for solving special problems of mathematics and physics
A 3D rendering / entity engine