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Why do I get these Artefacts

I model my meshes in Blender. I do the 2nd UV-Map for the Lightmap and assign that to the right channel etc., however, I still have these ugly artefacts allover my meshes. Please help!alt text

Product Version: UE 4.11
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asked Jun 27 '16 at 01:44 PM in Rendering

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Hi Achnequark,

That's caused by the the layout of your UVs for that meshes lightmap and a having a lower lightmap resolution.

For faces that need to have continuous lighting smoothly across them you will want to set up your UV so these faces are connected.

I would recommend taking a look at the documentation here: https://docs.unrealengine.com/latest/INT/Engine/Content/Types/StaticMeshes/LightmapUnwrapping/

Also Warren has a really good demonstration of setting up Lightmaps for UE4 here: https://www.youtube.com/watch?v=pUk-EUV_pbo

I hope this helps!


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answered Jun 27 '16 at 08:44 PM

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Tim Hobson ♦♦ STAFF
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Thanks a lot. I really needed that information! I will try it out tomorrow (Europe).

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