aka ogre v2 - scene-oriented, flexible 3D C++ engine
Open Source Solid Modeling CAD
Interactive 3D Layout Viewer for GDSII
3D Without Boundaries
Scanning Probe Microscopy Controller and Data Visualization Software
Viewer and exporter for Unreal Engine 1-4 assets
Tao3D is a programming language for real-time interactive 3D
Program for drawing 3D surfaces from parametric equations
Semiautomatic generation of semantic building models from image series
Pear3DEngine is a modern and modular 3D development framework
PixelLight is a cross-platform application framework
A 3D rendering / entity engine