This is the documentation for Enlighten.
Level properties
Enlighten automatically creates an Enlighten System Container actor for each level in the world. The properties of each Enlighten System Container actor affect all the actors in the same level. For more information about levels, see the UE4 documentation.
Default Quality
The quality preset applied to actors which have Enlighten Quality set to Use Level Default.
Default Update Method
The update method applied to actors which have Enlighten Update Method set to Use Level Default.
BSP Quality
The quality level applied to Geometry Brushes. When this is set to Use Default, the Default Quality is used.
BSP Update Method
The update method applied to Geometry Brushes. When this is set to Use Default, the Default Update Method is used.
Landscape Quality
The quality level applied to Landscape Actors. When this is set to Use Default, the Default Quality is used.
Landscape Update Method
The update method applied to Landscape Actors. When this is set to Use Default, the Default Update Method is used.
Adaptive Probe Resolution
The resolution of the probe data created for actors using Probe lighting mode. This is a proportion of the Adaptive Probe Grid Spacing setting found in World Settings.
Disable Enlighten
When enabled, no Enlighten lighting information is generated for actors in the level. You can also disable Enlighten for the entire scene using World Settings > Enlighten > Disable Enlighten.
Advanced properties
To show or hide these properties, click the arrow at the bottom of the section.
Allow Gpu Input Shadowing
When enabled, Enlighten systems in this container can use GPU shadowing to compute input light visibility. If you don't need this, disable it to prevent the required data loading, saving memory.
Precompute Data
This setting determines whether the Enlighten precompute data is stored in the level package or in an external asset.