There are no face normals in Blitz3D, only vertex normals.
What looks like a vertex in a Blitz cube, built with CreateCube(), is really three vertices. There is one vertex for each face at that location, and each vertex has its own normal.
What looks like a vertex in a Blitz cube, built with CreateCube(), is really three vertices. There is one vertex for each face at that location, and each vertex has its own normal.