I have lots of little LED lights (vray sphere lights) behind a thin (2mm) piece of coloured plastic. I need the plastic to blur the lights, and the only method I can think of is to use blurry refractions. This takes ages to render though. Any suggestions?
Ignore. We had broken lights. replaced and it worked out better!
Vlado said somewhere that some major speed gain is to be expected in V-Ray 4.0 when rendering blurry refractions.