The open source mesh processing system
aka ogre v2 - scene-oriented, flexible 3D C++ engine
Real-time physically based rendering engine for Android, iOS, and more
Open Source Solid Modeling CAD
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
Gimpel3D - 2D/3D Stereo Conversion Editor