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BSP stairs to static mesh causes object lighting to disappear?


I have added BSP stairs to the level which looks fine with a materiel.

As soon as I convert the BSP stairs into a static mesh they still look fine until I build the lighting, this causes the stairs to go black and have no lighting at all.

I have tried everything I can think of but I can not get the same results as I can with a normal BSP staircase.

I am new to unreal and game development and do not use any 3D modeling software.

Is there a way that I can use unreal to possibly fix the issue... if not I will have to use the BSP stairs and not create a static mesh (I don't even know the difference).

I am using version 4.12, the screenshots I have attachedalt text show the static mesh before and after I build the lighting.

Any advise would help.

Kind Regards


Product Version: UE 4.12
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asked Jul 12 '16 at 08:36 PM in Rendering

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Hi Tommow,

Follow the instructions here to set the converted BSP to use the correct Lightmap Coordinate Index and have a proper Lightmap Resolution: https://wiki.unrealengine.com/LightingTroubleshootingGuide#Invalid_Lightmap_Settings_When_Converting_BSP_to_Static_Mesh

This should get things looking correctly once you rebuild your lighting.


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answered Jul 13 '16 at 11:38 AM

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Tim Hobson ♦♦ STAFF
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