I was working on a couple of 3D images today, and the first one (Northern Perspective) worked fine, but then I couldn't get the second one's (Southern Perspective) lighting to work the way I wanted. In trying to eliminate the problem, I ended up doing the first render again, to check that it all looked ok, and then I swung the view around to the other side and rendered that view, without touching anything else. You can see in the attached images, specifically in the circled areas, that the shadows behind the wall sticking out look correct in the first image, but not in the second. I have turned on all layers and searched each story for any Lamp objects that shouldn't be there, but the only Lamp objects were my sun and sky objects. So can anyone suggest what the problem might be? If it makes any difference, the horizontal boarded cladding is a Morph, but both 'Cast' and 'Received' are ticked under 'Morph Shadows'.