Mesh Shadow problem

My meshes have these ugly shadows on them after rebuilding light.
I don’t know where these come from. The exact same meshes worked perfectly fine in UDK previously.
Any idea anyone where these dark weirdly shaped bits come from?

10816-shadowprob.jpg

Check if you’re using the correct UV channel for your lightmap. If that doesn’t do it, make sure the mesh is inside a Lightmass Importance Volume.

  • add a lightmass importance volume → this should solve it
  • otherwise also increase the lightmap resolution of your mesh

It doesn’t matter if it’s in this volume or not.

I tried very low, middle and very high lightmap resolutions. It made no difference.

I only had one UV channel. I auto generated another, that solved it apparantly.

Yeah, you need a second one for lightmaps. The built-in generator has always done the trick for me.