In the second of this two-part Unreal Tips & Tricks tutorial, we’ll dive deeper into the process of cleaning up light bleeding, with a look at how to correctly set up your scene in the engine to avoid lighting artifacts by fine tuning lightmap settings.
For additional help, see the documentation:
Lightmass Portals : https://docs.unrealengine.com/en-US/Engine/Rendering/LightingAndShadows/LightmassPortals/index.html
Lightmap Density view mode : https://docs.unrealengine.com/en-US/Engine/UI/LevelEditor/Viewports/ViewModes/index.html#lightmapdensity
Settings for Lightmass (This also covers Lightmass Importance Volume mentioned at the beginning of the video) : https://docs.unrealengine.com/en-US/Engine/Rendering/LightingAndShadows/Lightmass/index.html#lightmasssettings
source
