gistfile1.txt

                        for f, _ in face_index_pairs[:-1]:
                            for i in f.vertices:
                                fw('%d, ' % (me_verts[i].index + totverts));

                        f, _ = face_index_pairs[-1]
                        fw('%d, ' % (me_verts[f.vertices[0]].index + totverts));
                        fw('%d, ' % (me_verts[f.vertices[1]].index + totverts));
                        fw('%d\n' % (me_verts[f.vertices[2]].index + totverts));
                        fw('I2:\n');