Cycles alternative DOF blur Tutorial (Loica studio (Rough refractor) (TNT-LEGENDS))
Original page: http://www.blendernation.com/2014/06/...
So Loica studio recently created this amazing promo video in blender using cycles. They created a unique way of creating a Depth of field style blur using a customized glass shader.
This is my interpretation of how they might have done that.