level transitiion

Hello everyone, I hope this post is aloud here. I’m looking for help in environment transitions within my ue4 level designs. Does anyone know of any good, links, videos ect. As I can’t seem to find any.
So I have two identical (blocked-out) levels, one that will have higher poly assets, somewhat realistic and the second is low poly and designed “cartoonistic” (not a word i know) and i want the ‘world’ to transition from one the the other on trigger events?
i concerned that i will have to create two separate levels and have them transition that way. But what i am really looking for is a SFX transition that the player can see.
Please any and all help is greatly appreciated. :wink:

well hello there

hope this helps