ply
format ascii 1.0
comment author: user1
comment object: another cube
element vertex 8
property float32 x
property float32 y
property float32 z
element face 6
property list uint8 int32 vertex_index
end_header
0 0 0 {0顶点开始,排序即为面的顶点序号}
0 0 1 {1}
0 1 1 {2}
0 1 0 {3}
1 0 0 {4}
1 0 1 {5}
1 1 1 {6}
1 1 0 {7}
4 2 6 7 3
4 7 6 5 4 { 顶点个数,顶点序号,以下行号没关系 }
4 0 4 5 1
4 1 5 6 2
4 3 7 4 0
4 0 1 2 3