its hard to render on a high scene model especially with sketchup. What im doing here is i just render it part by part (this is the first part). and it is also very hard to render a night scene especially the light effect that come out from the building. Still bother me until now, How to achieve a great night scene rendering? without using the method of try and error which consume hugh amount of time and resource. Clearly this field needs a lot of experience, and a great sifu.