[What plug-in is this?]

That's the one! And it works brilliantly with PSFilterPDN. Thank you very much, Reputo.

[What plug-in is this?]

Hi guys, a while ago I made this pic using a plug-in on a photo of my dog, and then making a background image for it and various tweaks. Since then I have upgraded to Win10 and seem to have lost all my plug-in's and I can't remember which one this was. Any ideas? 
Thanks