# 11 vertices, 11 faces
mtllib output.mat
v 2.081565 15.654244 19.495880
v 1.980740 15.120396 18.736845
v 2.244738 16.173981 20.282568
v 2.860704 15.411818 18.876978
v 1.129614 15.644522 19.075672
v 1.347286 15.817216 20.054308
v 2.806656 16.227013 19.491386
v 2.753963 16.931324 19.997229
v 2.408505 16.817953 20.967091
v 1.586584 16.156471 20.963295
v 0.725674 16.099756 20.581026
usemtl mat0
f 2 4 1
f 6 1 3
f 5 2 1
f 6 5 1
f 7 3 1
f 4 7 1
f 3 7 8
f 8 9 3
f 9 10 3
f 10 6 3
f 6 10 11