Helix Toolkit is a collection of 3D components for .NET
The interactive graphing library for Python
C# graphics library used for 3D modeling, built with OpenGL/OpenTK
Code City metaphor for visualizing Go source code in 3D
A tool for creating voxels for the DelphiDoom Engine
Global visual guides for Windows
Multimedia asset management and manipulator for Étoilé
It's a direct manipulation parametric curve modeler.