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Weird shadows on wall corner ?

After building light with Production quality, wall corner shadows have something wrong. Could you tell me how to fix this problem, please?

I attached sreenshot with my lightmass setting.

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Product Version: UE 4.19
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asked Oct 25 '18 at 01:49 AM in Rendering

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Are your walls corner snapped to each other or overlapping? What is the lightmap resolution per wall piece? ...are you using portals? Is lightmap compression turned off? /I'd turn off ao also while you're just testing your lighting...

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answered Oct 25 '18 at 03:38 PM

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avatar image TNH.MTH Oct 31 '18 at 09:25 AM

I have checked it, no snapped, already using portal. The lightmap resolution is 256, yellow color in Lightmap Density. then I will try higher resolution. thanks your reply.

avatar image Makigirl Nov 01 '18 at 03:55 PM

I'd say it will be the lightmap resolution then! Also I would suggest to have your walls corner/edge snapped and not overlapping!! You'll lose uv space for the "invisible" parts + you'll have a bigger chance to get artifacts on the edges!! ...while you're just testing the lighting you can save a lot of time if you'll go with quality 1<4!

avatar image TNH.MTH Nov 07 '18 at 04:32 AM

I was increase Indirect Intensity then it was not improved completely but very much. Thank your help.

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