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Mastering Unreal Engine 4.X by Muhammad A.Moniem

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Lightmass settings

In order to get full control over Lightmass's final results, Unreal Engine gives you lots of attributes that you can adjust. Unfortunately, not all of them are in one place and they are scattered around the editor, which means there isn't one panel where you can adjust all the parameters related to Lightmass, and that is due to the wide modularity of the engine.

So if you are going to use Lightmass (which everyone does nowadays), you will need to adjust the settings for the level itself, as well as meshes, brushes, materials, light sources, and finally, the Lightmass Importance Volume value.

World Settings

The global Lightmass settings can be found under the World Settings window, within the Lightmass section:

The various settings ...

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