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Messed-up lightmapping

Good day,

I'm currently experiencing some issues with a custom mesh i'm trying to import into my game. Since i'm a bloody beginner in 3D-modelling and the stuff that comes with it, lightmapping brings some issues. I went through the following steps:

Mesh with no UV-Map and therefore no lightmap:


both channels are empty:


As you can see there's literally no lightning at all after lightning-build.

I went on auto-creating a simple UV-Map in blender and left the lightmapping-job to unreal:


uv-map channel:


lightmap channel created by unreal:


Today i tried creating a lightmap as a second uv-map in blender with the following results:


uv-map (the same as before):


blender-created lightmap:


In comparison:


As you can see there are still plenty of rendering errors although the black parts vary from the blender-lightmap to the unreal-lightmap. Any help would be greatly appreciated! Thanks in advance.

Product Version: UE 4.15
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asked Apr 18 '17 at 01:22 PM in Rendering

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