gazebo_models/fire_station/materials/scripts/fire_station.material

material FireStation/Diffuse
{
  receive_shadows off
  technique
  {
    pass
    {
      texture_unit
      {
        texture FireStation_Diffuse.png
      }

      rtshader_system
      {
        lighting_stage normal_map FireStation_Normal.png tangent_space 0
      }
    }
  }
}

material FireStation/Specular
{
  receive_shadows off
  technique
  {
    pass
    {
      texture_unit
      {
        texture FireStation_Spec.png
      }
    }
  }
}