Oliver Deussen Alexander Keller Kavita Bala Philip Dutré Dieter W. Fellner Stephen N. Spencer Proceedings of the Eurographics Symposium on Rendering Techniques, Konstanz, Germany, June 29 - July 1, 2005 Rendering Techniques Eurographics Association 2005 3-905673-23-1 db/conf/rt/rt2005.html