material Gazebo/Blue { technique { pass ambient { ambient 0 0 1 diffuse 0 0 1 specular 0.1 0.1 0.1 1 1 } } } material Gazebo/BlueGlow { technique { pass ambient { ambient 0 0 1 diffuse 0 0 1 specular 0.1 0.1 0.1 1 1 emissive 0 0 1 } } }