Pro‐Lighting - Tomb-Raider-Level-Editor/Tutorials GitHub Wiki
Written by Jonny89 aka Heckler
Here is a little foolproof method for achieving a more appealing lighting setup in TEN to bring out depth and liven up your textures.
This is just a standard setup in the pdf with a basic room I threw together, but the steps included will work with any environment and planned light sources. This also works well for TRNG.