Egon, on your importer, you do not use any information about faces, or normals.
I do see a calcNormals, so you must be doing that yourself.
Do you think it will make much difference? I know that in blender, you sometimes have to manually flip some face normals, because you just dont work automatically.
Should I ignore them for now?
Oh, one more thing;)....
I have doubt with how the vertexes are stored.
I read they have three vertexes for the first triangle, and one for the rest.
I had better look into it more - it is, after all, the first time i've parsed a 3d model file;)