libigl_Martin/tutorial/100_FileIO/cube.obj

v 1 0 1
v 0 1 1
v -1 0 1
v 0 -1 1
v 1 0 -1
v 0 1 -1
v -1 0 -1
v 0 -1 -1
f 1 2 3
f 8 5 1
f 5 6 2
f 6 7 3
f 4 3 7
f 7 6 5