ply
format ascii 1.0
element vertex 8
property float x
property float y
property float z
element face 12
property list uchar int vertex_indices
end_header
-2 2 -2
2 2 -2
-2 -2 -2
2 -2 -2
-2 2 2
2 2 2
-2 -2 2
2 -2 2
3 0 2 3
3 0 3 1
3 4 6 2
3 0 4 2
3 0 1 4
3 1 5 4
3 4 5 6
3 5 7 6
3 7 2 6
3 7 3 2
3 5 1 7
3 1 3 7