http://www.opticalillusion.net Illusions and visual special effects - explanations and tutorials Mon, 06 Sep 2010 17:07:11 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 http://www.opticalillusion.net/special-effects/polarised-ice-pic/ http://www.opticalillusion.net/special-effects/polarised-ice-pic/#comments Sun, 26 Apr 2009 08:33:13 +0000 david http://www.opticalillusion.net/?p=925 http://www.opticalillusion.net/special-effects/polarised-ice-pic/feed/ 0