OpenGL Mathematics (GLM)
Javascript Matrix and Vector library for High Performance WebGL apps
A package containing a few micro-interactions you can use
Universal Scene Description
virtual reality authoring toolkit created by artists, for artists
realistic driving simulation + functions for 2D/3D graphics
Volumetric image processing software
iOS and OS X animation library for physics-based interactions
3D .NET engine for Windows, Linux, Mac
Pear3DEngine is a modern and modular 3D development framework
1st 3D game engine built in C# for .NET, Visual3D Engine's predecessor