polyhedron
  (points = [
         [0, -10, 60], [0, 10, 60], [0, 10, 0], [0, -10, 0], [60, -10, 
60], [60, 10, 60],
         [10, -10, 50], [10, 10, 50], [10, 10, 30], [10, -10, 30], [30, 
-10, 50], [30, 10, 50]
         ],
   triangles = [
        [0,2,3],   [0,1,2],  [0,4,5],  [0,5,1],   [5,4,2],  [2,4,3],
                [6,8,9],  [6,7,8],  [6,10,11], [6,11,7], [10,8,11],
        [10,9,8], [0,3,9],  [9,0,6], [10,6, 0],  [0,4,10],
                [3,9,10], [3,10,4], [1,7,11],  [1,11,5], [1,7,8], 
                [1,8,2],  [2,8,11], [2,11,5]
        ]
   );