( MAKE IT STICKY! ) Light Build, How to set-up the Lightmass -tutorial for beginners

Here’s some more things to talk about: give us general info on building large, open worlds. I take it that the larger the world, the more important it is to lower resolutions on meshes that are small? Like grass, bushes, small rocks for example? I would also like to know how the lightmass volumes work. Simply saying ‘use a lightmass volume’ doesn’t explain a lot. Use it how? How many? Whats the size for each? Keep in mind that A LOT of people want to make big open worlds so you need to tailor your tutorials that way. After reading all your tutorials, I still have no clue how to build effective lighting for an outdoor world. Nobody cares about a small little hut on a 2x2 floor because that isn’t a realistic example. So please change your tutorials to focus on realistic examples such as large open worlds.

Now obviously I might not be understanding the bigger picture, but I’m giving you feedback as someone new to UE4.

EDIT: okay I just read on answerhub (https://answers.unrealengine/questions/133023/handling-huge-terrainbug.html) that you can remove baked lighting entirely which might be the best solution for large open worlds. He says to just use moveable lights only for your scenes. Can you comment here with your suggestions/advice/tips/etc?