g land_base
v 50 0 -52.2209702
v 10.2248421 0 -19.2045326
v -10.2248421 0 -19.2045326
v 50 0 52.2209625
v -50 0 -52.2209702
v 10.2248421 0 19.204525
v -10.2248421 0 19.204525
v -50 0 52.2209625
vt 1 1
vt 1 1
vt 0 1
vt 1 0
vt 0 1
vt 1 0
vt 0 0
vt 0 0
vn -0 1 0
vn -0 1 0
vn -0 1 0
vn -0 1 0
vn -0 1 0
vn -0 1 0
vn -0 1 0
vn -0 1 0
g land_base_0
f 3/3/3 2/2/2 1/1/1
f 1/1/1 2/2/2 4/4/4
f 5/5/5 3/3/3 1/1/1
f 2/2/2 6/6/6 4/4/4
f 7/7/7 3/3/3 5/5/5
f 4/4/4 6/6/6 8/8/8
f 8/8/8 7/7/7 5/5/5
f 6/6/6 7/7/7 8/8/8