i maybe had found the setting to change to get softer shadows, i 'm currently running several renders only tweaking the environement, check there tomorrow please
EDIT:
so here it is... actually it seems that we cannot yet modify a lot of things in the environement setting.Yet only few tweak seems to work but not sure it'll be that useful... for softer shadow it seems that the skydome is a better choice...
the tests
daysetup, default madrid set to14h
i had increase each 3 slots one by one
same thing by night 0h00
apparently the ozone seems to increase the amount of the sky influence while the turbidity increase the sun one (in physicall sky) but strangely doing so lower the shadow sharpness...incresaing water yet seems to change nothing ... i'll run same tests with next release...
De Humanis fabricae...
aka vesalus on cgtalk
aka vesale on frenchcinema4d