I think I may have asked this once before but I don't ever remember getting an answere...

When I set lights inside of objects that have been made hollow with windows cut into the sides, How can I prevent the light from passing through the building sides as well as the window openings???

Is there a way to do this... I can get away a fair amout with setting my lights to "ranged" but is there a more apropriate way to do this???

I must admit... I've been playing around with this problem off and on for quite some time now :

I supose it's an OK issue for thumbnails like the sample I have included, see how the lights shines out of the window beautifully but allso bleeds out through the roof top as well... a minor anoyance...

... any way to fix that issue??