Well it's 500 liner for converting OBJ to my 3D format which is variation of 3D format presented by Frank Luna and which I am using a lot in my personal projects as it's much easier to handle using DirectX. If you want to try it out name obj and associated mtl vena2 and run the code, you should get konwersja.txt with your model converted.

It supports: Materials, Normals, Tangents, Uvs