http://www.artstation.com/marketplace/p/GJOy/intro-to-ue4-lighting-exterior-and-interior-tutorial

A full run through of creating an exterior and interior lighting scene in UE4. Starting by showing the dynamic version of building a scene by using directional lights, volumetric height fog, and skylights. Then moving on to setting up a scene using UE4's light baking system and how to modify the results and trouble shoot any factors that occur during the process. Finishing with showcasing post process features and how to modify basic materials and their relationships with the lighting results.