Hello, this is my first time posting and know little about UE4. I have build a room inside of the ground. Everything is made up of additive and subtractive geometry brushes. My issue is that the room gets brighter and brighter the longer you stay in the room plus the reflection on the floor gets very intense. There are no lights in the room just one directional light and a sky light. There are no gaps or spaces between the brushes so there shouldn’t be any light leaking into the room. I assume the issue is that I am not using static meshes but I wish to solve this problem without using them because I do not know how to use 3d modeling programs.
TL;DR: Is there an easy solution to my lighting problem without using static meshes?