Lighting Issue, Skylight lighting inside area the same as outside

[Kyle_Cuss]

As the title says my inside area are lit exactly the same as the outer areas. I have followed the tutorial creating the directional light, skylight, skysphere. Linking the skysphere and directional light. Have tried static, stationary and movable light. I have blocked off all light leaks like the tutorial shows and added a couple torches to experiment. Torch point lights are not showing up either. If I disable the skylight the interior darkens and torch lights work as expected. So as far as I can tell it is some issue with the skylight.

I am using Unreal 5.1. Pics below. Thanks for any help.

[DanM]

Have you tried using Box Brushes to block out the light instead? Have you also tried rebuilding the lighting?

[Kyle_Cuss]

Tried box brushing it in this morning does not fix issue. Have rebuilt the lighting, have deleted and remade the lighting actors doesn’t fix. If I just delete skylight, the inside is perfect, but the outdoor lighting suffers.

[StorkDuck]

Have you checked distance field ambient occlusion (DFAO), lumen global illumination, and similar settings?

These get changed based upon the scalability level, so a quick test is to simply change the scalability level.

Using Unreal 5.1 with scalability high:

And with scalability low:

I tested scalability medium as well, it seems to behave similar to scalability low in terms of how it’s handling the lighting.

edit:
The issue might be the lumen global illumination setting.
off:

on:

Hopefully this helps! If it doesn’t you can pull the finished project repo CryptRaider · main · GameDev.tv / Unreal 5 CPP / Crypt Raider · GitLab and check for any differences.