Half-Life-PBR/gearbox/pbr/models/sprite.mdl/sprite.mdl.mat

{
"for" "#models/sprite/null.mdl"
//"basecolor_map" "null.png"
//"normal_map" "null_normal.png"
//"metal_map" "null_metal.png"
//"roughness_map" "null_roughness.png"
}