C# graphics library used for 3D modeling, built with OpenGL/OpenTK
Vivid3D is an open-source 3D engine with powerful 2D UI.
a 2D Game Development Framework
3D .NET engine for Windows, Linux, Mac
OpenTK library for Stereolithography files
A class library to use conformal geometric algebra in C#
OBJ Load & Display Library
.NET CoverFlow WindowsForms Control
Superseded by OpenTK: https://sourceforge.net/projects/opentk/
A modern 3D App framework using OpenCL to render via raytracing