Lighting

Lightmass Importance Volume

During baking I got a warning saying that my scene is quite big and that it's recommended to put down Lightmass Importance Volumes. After looking it up, it turns out those volumes are for indicating where static light needs to be build. Without them, Unreal will calculate the whole area equally.

Overlapping Error

Terrain Shadows

Because my directional light used to be on moveable I had pretty nice shadows. After baking I realised that my shadows weren't looking so good anymore. I googled for a long while until I realised it had to have something to do with lightmap density. After turning on viewmode, it all made sense. I turned up the resolution from 1 to 20. I wish I could put it higher but I noticed the baking time being unreasonable long. The ideal number would've been  around 30.

Very Dark

I don't get why exactly but after baking the lighting, everything properly turned dark in the caves. I wanted to acquire this effect in KM3 so I could take control of the lighting, but now that it showed up in this subject, I'll let it be dark for now. It's a good opportunity to try and learn more about lighting a scene.

The directional light used to be on Movable, but for optimization I put it on Stationary and baked it. When I saw how pitch black everything got I wanted to go back , but even after putting it back to Movable, it still looks this dark.

Learn about lighting

I read through this artstation post (https://www.artstation.com/artwork/YeEKy6) to get a better understanding of light. Since the caves are extremely dark, I created holes in the roof of the caves to let in the sun. I tweaked several settings to try to get indirectional lighting but it just doesn't want to work, so instead I added static point lights and spotlights to recreate the indirectional light effect.