There are many options for collisions, tried you that stuff?
I use GPU particles in a similar case, but not rain and i am happy with the result. Nothing has to be perfect for me.
https://www.google.de/?gws_rd=ssl#q=ue4+rain+collision
There are many options for collisions, tried you that stuff?
I use GPU particles in a similar case, but not rain and i am happy with the result. Nothing has to be perfect for me.
https://www.google.de/?gws_rd=ssl#q=ue4+rain+collision