This article offers a detailed guide to light baking in Unreal Engine, focusing on creating high-quality baked lighting for static objects using lightmaps. It covers key topics like lightmap setup, lighting configuration, reflection optimization, and level hierarchy management.
https://dev.epicgames.com/community/learning/tutorials/KPOx/unreal-engine-light-baking-and-lightmaps-a-step-by-step-ue-guide