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Odd dark shading / shadowing / AO ?

Hello everyone,

I've been having an issue with an archvis type project. The lighting looks absolutely fine everywhere but this particular mesh with rounded edges keeps receiving a lot of dark shading in flat areas which should be lit uniformly. I've completely redone the lightmap UVs, altered the smoothing/normal directions and have tried different ligthmass/AO settings. I've been trying to figure out if this is being caused by DFAO but have not been able to find a solution. Does anybody recognize this problem or know a possible solution?

Thank you!

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Product Version: UE 4.15
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asked Mar 22 '17 at 11:10 AM in Rendering

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MauroRobert
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avatar image MauroRobert Mar 28 '17 at 06:58 AM

Does anybody know what might be causing this shading?

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If you have DFAO enabled, try toggling your Cast Shadows variable on your skylight and see if you notice any difference. Alternatively, take a peek at your post process volume in the AO settings and try turning the Ambient Occlusion intensity all the way down to see if that's the culprit.

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answered Mar 31 '17 at 05:36 PM

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hippowombat
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avatar image MauroRobert Apr 01 '17 at 06:00 AM

Thank you for your comment! I experimented with the Cast Shadows, but without it I was getting illumination in areas where I didn't need it. I do think it's the AO going crazy with the corners. Eventually I decided to replace those meshes entirely which solved the biggest shading issues. :) alt text

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