Thanks Stewer, the example linked to by bip was sufficient. That effect cannot currently be reproduced in Studio apparently. I was able to easily reproduce it in cinema but I was told that even at 200% displacement in Studio the results were... erm, somewhat sad. Displacement currently - even on a dense mesh - is limited and the end result was not much greater than the image I was sent (posted above). Looks like Daz need to do some work on that.