kk, made a quick little sample up, here is the node graph for it in udk, the exact same setup should also work in ue4. [ame="http://www.youtube.com/watch?v=gQLFP_6t7so"]Basic Forcefeild shader - YouTube[/ame] Alight the first section there distortion, is really just taking a panning texture coordinate, adding it, to some…