Thanks to @mostapha we can modify the reflectance of the surrounding context of a Building with the python programm in the model attached. My aim perhaps is quite stupid but do you think it is possible to assign different reflectance according to different materials as percentage of the surface glazed? In fact in this example the goal is to input 0.2 for the 6 first surfaces, 0.1 to the 7th surface, and so on.
If someone has an idea how to write it on Grasshopper Python
180716_Model Context Reflectance.3dm (146.7 KB)
180716_Context Reflectance.gh (181.5 KB)