I have been using Diva mostly for interior daylight analysis and simulation. However, right now I am trying to figure out if there is a good metric that can determine how much sun reflection a building creates on its surroundings and whether the reflected sun is intolerable or not. I think the glare analysis cannot work for outdoor environment and I am not sure if it takes into account the reflection of the material. For example how can we determine how much sun a glassy skyscraper (fryscraper!) will reflect on the neighborhood? Does radiation map takes into account the effectiveness of the materials?