I'd much appreciate when I add a light source to one side of a solid wall, it didn't shine through the other side of the wall.
Actually, I think it's any solid surface, but the title was catchier that way.
I was about to hijack another thread, then thought better of it & decided to give it its own thread. I've seen it mentioned in other threads, but those go off on a tangents about desired lighting, color, intensity, etc.
I just want a solid surface - wall, floor, ceiling, whatever - to behave like it and block light. Light shouldn't go through to the other side. It's one of the most frustrating things in housing for me. Constantly moving light sources because they're showing through the other side of a wall. Or a floor.