If you don’t touch the Camera exposition, a Sun with 0.06 of intensity and 5 of size, could be good. The bigger the sun, the more nuanced the shadows. By making some light-test renderings, choose the intensity and size of the sun that it is ok also for you. Interiors could need the help of additional lights. Remember to check if another Directional/Sun Light is already active and switch that off, or the image will be very exposed – one is enough and more controllable.
In this post I won’t explain each parameter or description, but I will only list all the necessary steps
I usually suggest these first steps for a good rendering production with Rhinoceros + Vray.
