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How do I get rid of Light Bleed?

HI GUYS ANYONE CAN HELP SOLVE THIS PROBLEM. ITS MAKE MY HEAD ITCH

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Product Version: UE 4.10
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asked Mar 01 '16 at 08:52 AM in Rendering

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a000m
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2 answers: sort voted first

Try increasing the Light Map resolution. Open up the mesh in the mesh editor, and look under Static Mesh Settings. Increase the Light Map Resolution. Default is 64 I think, so in this case 128 might solve the problem (if that is what is causing the bleeding).

Especially for larger meshes, the default resolution is often too low.

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answered Mar 01 '16 at 10:14 AM

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Thavralex
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avatar image a000m Mar 01 '16 at 10:49 AM

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avatar image Thavralex Mar 01 '16 at 01:02 PM

Oh, you actually did show LMR in the third pic, and had it on 512. My bad. From what I've seen that should be more than enough for a mesh of this size.

However, it does seem like the bleed decreased with 1024. If you haven't already, I would try increasing the gap between islands in the UV map, just to make sure it's not a problem with the light itself.

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Check for mini gaps between the walls. Is the issue gone if you switch to dynamic lighting and remove lightmaps altogether?

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answered Mar 01 '16 at 01:16 PM

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phoboz
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