newmtl efx_rain
    d 1.0
    map_Ka textures/efx_rain.tga
    map_Kd textures/efx_rain.tga
newmtl efx_lightning_2
    d 1.0
    map_Ka textures/efx_lightning_2.tga
    map_Kd textures/efx_lightning_2.tga