# effectively invisible: one 0.1 mm triangle
mtllib mouselaser_none.mtl
v 0 0 0
v 0.0001 0 0
v 0 0.0001 0
vt 0 0
vt 1 0
vt 0 1
vn 0 0 1
usemtl none
f 1/1/1 2/2/1 3/3/1