How do I fix overlapping UV errors in UE4?

Development Rendering
, , , , ,
1

I have tried changing the lightmap resolution to 512 and the coordinate index to 1 but it is still not working.

I have these errors:
'Lightmap UV are overlapping by ____%" for multiple objects. I got all of my objects from cgtrader and sketchfab so I can’t go back and edit them in Maya/a 3D modeling software. How do I fix this issue in Unreal Engine?

2

Hello Kelly,

It sounds like the UVs may have an incorrect/overlapping layout. There would be no way to fix this in editor. As a workaround you could use movable (dynamic) lights instead of baking, but this will have serious performance implications.

For assets on the Unreal Engine Marketplace, we ensure that meshes do not have overlapping UVs.

Thanks,

3

If I’m only using my scene to collect data from UnrealCV does it mater if it’s built or not? I wont be using it to play an actual game, just to collect ground truth.

4

If FPS is not a concern then using movable lights should be fine.