newmtl rusted_metal
    d 1.0
    map_Ka textures/rusted_metal.tga
    map_Kd textures/rusted_metal.tga
newmtl m_wheel
    d 1.0
    map_Ka textures/m_wheel.tga
    map_Kd textures/m_wheel.tga
newmtl m_cogteeth
    d 1.0
    map_Ka textures/m_cogteeth.tga
    map_Kd textures/m_cogteeth.tga