Dynamic shadow works very well: i managed to create a very realistic day/night cycle that takes into account seasons, relative position of sun, day length and various weather-related brightness effects.
There is just one thing i'm not happy about: the fact object shadows "overlap" and the overlapping areas are darker, as shown in the screenshot.
Do you know a way to fix it, if there is one?
EDIT: Ok my team mate pointed out i just had to use the "Copy" blend mode on the shadow item, NOT the layer used by it. Retardation: confiermed.