Hi there. I have a gdb which contains, Multipatch LOD2 Buildings (in 3D), I have roof surfaces, trees, water and terrain. I want to colorize the Buildings and the roofs with the attributes stored inside it. For buildings, I want to colorize according to building type (Residential, Office etc). The field for landuse type is Land_Type. Similarly I want to color roofs, but all with the same color lets say light brown. Nothing needs to be extruded as everything is already in 3D. Please help me to write the rules, or any examples which has the similar rules. I am completely new to CityEngine. Please help. I use city engine 2014.1.