obj2gltf/specs/data/box-texture-options/box-texture-options.mtl

# Blender MTL File: 'box.blend'
# Material Count: 1

newmtl Material
Ns 96.078431
Ka 0.200000 0.200000 0.200000
Kd 0.640000 0.640000 0.640000
Ks 0.500000 0.500000 0.500000
Ke 0.100000 0.100000 0.100000
Ni 1.000000
d 0.900000
Tr 0.100000
map_Ka -s 1.0 1.0 1.0 -o 0.0 0.0 0.0 ambient.gif
map_Ke -s 1.0 1.0 1.0 -o 0.0 0.0 0.0 emission.jpg
map_Kd -s 1.0 1.0 1.0 -o 0.0 0.0 0.0 diffuse.png
map_Ks -s 1.0 1.0 1.0 -o 0.0 0.0 0.0 specular.jpeg
map_Ns -s 1.0 1.0 1.0 -o 0.0 0.0 0.0 shininess.png
map_Bump -bm 0.2 bump.png
illum 2