Learn how to work with GPU Lightmass that improves the light baking system in UE4.


VR Division shared a detailed tutorial on how to work with the new GPU Lightmass in UE 4.26.

The tutorial includes:

TLDR overview and how to enable it and virtual texturing to work in real-time.
Working on post-processing settings in virtual texturing.
Changing lighting resolutions.
Building lights.
Reviewing bakes.


To understand the lighting process better, check out the tutorial series on lighting processes in UE4.


Find more information on the new GPU Lightmass in Unreal Engine release notes.