Drawbridgep, Yes, those are made in post. Heres a short one of how theyre done. Simply draw a few lines along the buildung walls, and use the eraser tool (size 1-2), and randomly erase parts of the lines. Just wave around, its a good way to avoid that sterile, uniform look. And if needed, add some outer glow to the lights.

Rudolf Herczog
Digital Artist
www.rochr.com