a parametric 3D CAD modeler
X3D is the open-standard format for 3D graphics scenes on the Web.
Rayshade raytracer
Java3d scenegraph editor
Reorganize M32/X32 show files
Converts between many 3D data formats
3D rendering and scene graph library (moved to GitHub)
3D Charts - Templates for PovRay(TM)
3D .NET engine for Windows, Linux, Mac
Imagin Raytracer is a multithreaded command line raytracer
rayshade 4.0.6 linux patch
PHIGS (Programmer's Hierarchical Interactive Graphics System)
Pear3DEngine is a modern and modular 3D development framework
(Auto-)Detect Video Scene Changes, output an edit list
Bruno's RAY Tracing Engine