ply format ascii 1.0 comment created by platoply element vertex 8 property float32 x property float32 y property float32 z element face 6 property list uint8 int32 vertex_indices end_header -1 -1 -1 1 -1 -1 1 1 -1 -1 1 -1 -1 -1 1 1 -1 1 1 1 1 -1 1 1 4 0 1 2 3 4 5 4 7 6 4 6 2 1 5 4 3 7 4 0 4 7 3 2 6 4 5 1 0 4