Lighting Problems

ArtChar

Hello all,
So at the moment, I am getting a strange error with my walls and the ceiling. The walls and ceiling are single sided. Please let me know what you think!

Obscura

I guess you can try a 2 sided mesh. But the blockiness isn't because of that. Its related to them being separated, and the lightmass settings. I would suggest to also use the searh here on polycount. If you type lighting problem unreal or something similar into it, I'm sure you'll find a lot of these. You can also do the same with google. But the best is to type "unreal engine modular meshes lighting problem" and you will find a thread on the unreal forums, that talks about this specifically and how to solve it. @EliasWick had a similar case, way less drastic though, check out his threads, there is only workarounds for this, mainly using bigger pieces on flat assets, and some heavier lightmass settings.

http://polycount.com/discussion/187595/lightmap-issue-huge-difference-on-lightmaps-depending-on-level-solved#latest
http://polycount.com/discussion/188536/ue4-lightmaps-rules-and-guidelines-for-creating-rooms#latest 

And the Unreal forum thread:
https://forums.unrealengine.com/showthread.php?46269-Modular-Asset-Lighting-Problem

ArtChar

Thank you @Obscura for your help, I will definitely go that direction. Thank you!