simple_mesh/004_cracker_box/material.mtl

# https://github.com/mikedh/trimesh

newmtl material_0.009
Ka 1.00000000 1.00000000 1.00000000
Kd 0.40000000 0.40000000 0.40000000
Ks 0.00000000 0.00000000 0.00000000
Ns 10.00000500
map_Kd material_0.009.jpeg