Radiance glass material doesn't take into account the reflectivity of glazing. However, I'm interested in studying the effect of reflective glazing on occupants' visual comfort (glare) in surrounding areas, so reflectance of glass is a required input in this case. How would I define a radiance material for the glazing highlighted in the picture below (the second one, named " Silver 50/30")? it has a reflectance value = 0.39