Rebuild lighting for selected assets only

Hi, just wondering if it is possible to rebuild lighting for selected assets rather than the whole level? For example, a building has buggy uvs, would be nice to fix and rebuild only that asset.

Many thanks,

It’s currently not possible. There was an option for that in the past but it was removed due to some bugs that were never fixed. Part of the problem is that a lot of the lighting build work has to happen regardless of whether you build a few assets or not, since global illumination is global. The entire scene has to be exported, imported by lightmass, and the photon emitting passes have to be run. However the light transfer computations and export / texture compression could benefit. We’ll consider re-adding support for this.


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Hi Ben, yep sure, make it public.
Best Regards,