World Composition has reduced my performance a lot

Development World Creation
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1

Hi guys,

I’ve been creating an open world map, and after noticing some slight performance issues I did some digging and found that I could use World Composition to improve performance.

So, I made a few duplicates of my terrain and made each its own section of the overall landscape by erasing landscape components.

However, whenever I enable World Composition and load one of the other levels, the unbuilt lighting number goes from 5k to 22k in the viewport and when I press play, this number goes to 300k and my performance tanks. Each level by itself is fine, but when joined with World Composition this happens.

Any help would be much appreciated, because at the moment simply having everything in one level is faster.

Cheers,

2

I’m not sure exactly how world composition works with static lighting. If you load all of the levels at once in the editor and then build lighting for everything, does that keep the lighting built if the level is unloaded during play?