#declare my_glass =
  texture {
    pigment { rgbf <0.99, 1.0, 0.99, 0.75> }
    finish {
      ambient 0.1
      diffuse 0.6
      reflection .02
      specular 1 
      roughness .001
      #if (version<3.1)
	ior 1.5
      #end
    }
  }

#declare My_Ruby_Glass =
  texture { 
    my_glass
    pigment { rgbf <0.9, 0.1, 0.2, 0.5> transmit 0.5}
//    pigment { transmit 0.2}
  }

#declare My_M_Ruby_Glass = material {texture {Ruby_Glass} interior {Glass_Interior}}