ply
format ascii 1.0
comment VCGLIB generated
element vertex 5
property float x
property float y
property float z
element face 4
property list uchar int vertex_indices
end_header
-1 -1 0
1 -1 0
1 1 0
-1 1 0
0 0 0
3 0 1 4
3 1 2 4
3 2 3 4
3 3 0 4