Lightmap problems

Development Rendering
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1

Hi all !

I’m a UDK user converted to Unreal 4.
I’m having a strange issue with lightmaps.

As you can see on the picture my object is really simple and… crappy, and I don’t know why, I have two Uv channels (pictures below)

2736-lightmap_problem.jpg
2736-lightmap_problem.jpg839×650 97.4 KB

UV_0 is overlapped (but I think it’s not a problem, or it was not in UDK)
UV_1 is “clean” (maybe not nicely done, but done…)

2738-uvset.jpg
2738-uvset.jpg932×1070 245 KB

I don"t understand why the lightmap is so wrong.
This is something that I was doing in UDK…
Any help will be appreciated !

Best,
Nicolas

2

Make sure the lightmap channel is set to 1 in the static mesh editor.

3

Thanks a lot, you’re answer is right !
This parameter stayed on “0”, I changed it to “1” and everything works fine which is strange in fact, for some objects it was automatic !