Saw this some days ago. I think the idea really cool and I'd love to try it out myself. Though, I don't think it would be used by a broader audience,...
That looks a lot better than having a random shaped black space, but you have a point when you say it looks empty. Hmm... Is there any way the C and...
If PiscesFish's idea really works then you could use it to create light at the bottom of the stair. A sunshaft could lit up the upper half. (haven't...