The dynamic widget for daylight and shadows in webscenes is awesome. But because our landscapes in Norway are anything but flat, we usually can't completely trust the result because it only shows shadows cast from vector data, i.e. multipatch buildings. Usually the shadows cast by terrain is equally important. My idea is that you develop this function further to include the shadows cast by the elevation surface/ DTM raster.
I have used an inelegant workaround up until now by draping av a fishnet vector layer over the terrain. But the result is pixellated and does not look great.