https://github.com/ChrisJansson/ObjLoader
http://www.codeproject.com/Articles/798054/SimpleScene-d-scene-manager-in-Csharp-and-OpenTK
https://github.com/ChrisJansson/ObjLoader
http://www.codeproject.com/Articles/798054/SimpleScene-d-scene-manager-in-Csharp-and-OpenTK