Unreal Engine 4 Light Leaks From Wall To Another

Ok so the issue i m having now is light leaking.

Unreal engine 4 light leaks from wall to another.

Help how to solve light leaking through the wall. Directional light intensity is 5 and spotlight intensity is 1. The ao contrast settings may be too high in the lightmass settings. One i made sure the wall was overlapping the floor and no space at all.

I did two things just to make sure. I have some torches on a wall but you can see the light from the lower room space glowing up the wall even though there is a floor between them. It doesn t matter if the mesh uses 2 sided lighting. Continuously evolving to serve not only its original purpose as a state of the art game engine today it gives creators across industries the freedom and control to deliver cutting edge content interactive experiences and immersive virtual worlds.

Leaks happen with production value lighting and a lowered static lighting level. This solution works in other engines like unity and ue4. In preview build i tend to get light that leaks in corners. Help i am working on a interior scene where i have one stationary directional light there is a lot of light leak on the edges of the mesh even after creating separate lightmap uv channel with snapping to the grid.

Sometimes point lights shine through walls to varying degrees. They occur with static and brush meshes. I also tried changing diffuse boost value of that and surounding walls and assests but still nothing. Also setting the light build to production lighting may fix the light leaking as well.

I tried different lightmaps with small and large padding and resolution of 1024 and no matter what i do it always has this leaking in this corner and on the top of that wall. Unreal engine is the world s most open and advanced real time 3d creation tool.