   Anybody implemented PolyCube Maps?
PolyCube MapsI'm attempting to understand and implement PolyCube maps.  The problem I've run into is assigning each vertex in the mesh a 3D texture coordinate.  On page 5, section 6.1 of the paper, it discusses constructing the parameterization and says that once the polycubes have been morphed to approximate the shape of the mesh, each vertice's normal is used to project it onto the appropriate polycube face.  But on page 2, section 3, the author is doing something that seems entirely different.  Instead, another set of polycubes is overlayed over the first one and offset by 0.5, and then a projection is computed for each vertex based on the configuration of polycube faces within each of these new cubes.Has anybody implemented PolyCube Maps before?  How is the assigning of 3D texture coordinates to each vertex correctly done?  Is the vertex normal always used?   