How to fix these lightmap artifacts?

Development Rendering
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1

Hello everyone!

I am a CGI student and I need some help with lightmaps. I already watched many tutorials and read through the UE4 documentation but nothing helped.

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293467-test-ue4-1.png
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These are my shadows after I baked the light even with the production quality. I used a normal point light and just increased the intensity up to 40 cd.

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I made sure that the lightmap density is green.

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This is my lightmap done in Maya.

293470-test-ue4-4.png
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These are the settings for my lightmap.

Does someone has an idea what I did wrong or what I can improve to fix the artifacts. Help or advice is welcome.

2

You need to up the lightmap resolution of the object the shadow is being cast on, in this case the ground plane.

3

Thank you! It looks much better now.