I was wonering if anyone can guess if this effect is done with pure java or using openGL or DirectX?
http://www.waterlogic.com.sg/smallmedia/gallery/volumetriclight4.html
same question here for another example
http://www.waterlogic.com.sg/smallmedia/gallery/volumetriclight2.html
these are examples taken from the site WaterLogic.com.sg