I have a 3D dataset, with all x,y,z vertices, the faces and face normals. I was using MeshLab to apply the shaders, but it seems that all the shaders in MeshLab works on vertex normals. Can I shade image using face normals in MeshLab? Or is there any other software available to which I can input the vertices, faces and face normals and it should apply the shader based on face normals?