I just started using UE4 today! I have had it since the day it launched and have been holding off on getting into all the new craziness. But earlier I learned of a 3DStudio Max script that exports "vector fields" into UE4.  I've been wanting to experiment with vector fields for some time so I quickly made it an excuse to fire up the new editor.

The script is a little buggy, but it works. here's my first test image:

I have been looking forward to this for a long time.