I remember a while back (a few months), someone was trying to prevent rain from appearing under buildings. Did that ever go anywhere ?

Reneer released the mod.

Ah, good. How did he do it ?

I think it had to do with an invisible actor above your head, and one behind you. I might be completely wrong though, so don't trust that. It might say in the mod's Readme.

I always figured someone would shrink the particle effect so it appeared farther away, but this seems pretty good.