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Lighting Issue

I'm having an issue with the lights. I've got my scene without any lights in the interior space, just the sun and the sky light. The problem is that the outer light is passing through the corners of my model. The wall and ceilling are all one volume in this case, so i dont understand whats happening there.

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Product Version: UE 4.12
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asked Jun 19 '16 at 04:48 PM in Rendering

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cgmpalencia
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Hi!

Please make sure to go through the lighting quickstart: https://docs.unrealengine.com/latest/INT/Engine/Rendering/LightingAndShadows/QuickStart/index.html

I will try to explain what is happening here: The outer light is leaking through the mesh. This usually happends when the lightmap resolution of the mesh is too low. It is a best practice to seperate your meshes (for example seperate walls/doors/ceiling).

How to fix this problem:

  1. Make sure your lightmap UVs are correct (So no overlapping UV errors and enough resolution. )

  2. Increase your lightmap resolution in the asset editor.

Check this info on lightmap UVs: http://docs.unrealengine.com/latest/INT/Engine/Content/Types/StaticMeshes/LightmapUnwrapping/

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answered Jun 19 '16 at 10:38 PM

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vonBerg
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It works! Thank you so much!

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answered Jun 20 '16 at 02:12 AM

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cgmpalencia
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avatar image vonBerg Jun 20 '16 at 09:56 AM
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