there are also tools like crazybump: http://www.crazybump.com/ http://www.crazybump.com/ that generate normal maps from photos without human intervention. Wha

there are also tools like crazybump: http://www.crazybump.com/ http://www.crazybump.com/ that generate normal maps from photos without human intervention. What sprite lamp needs is integration with a 2d game engine. I'm not totally familiar with 2d engines, but they would have to support dynamic lighting with normal maps to make this work right?