#declare F_Glass4 =
finish {
    ambient 0.1
    diffuse 0.1
    reflection .25
    specular 1
    roughness 0.001
}

#declare T_Beerbottle_Glass=
texture {
    finish { F_Glass4 }
    pigment { color rgbf <0.7, 0.5, 0.1, 0.6> }
}