UE4 Lightmap UVs - Global Adjustments

In this video, we'll cover how to globally adjust your Lightmap UVs instead of individually changing each and every asset.

00:00 - Intro
01:38 - Asset UV Lightmap
03:25 - Editor Override
04:53 - Lightmap Resolution Table
09:25 - Global Change Tools

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[omri]

Supreme UE4 content Ryan! Keep em coming!

[pronoydutta]

Hey, thanks for making these! They're very informative. You're doing a great job!

[marklavania]

Very handy feature! Thanks for sharing this info Ryan!

[QuirinF]

That was really helpful! This menu isn't intuitive at all and I didn't get it before! Thanks!!!

[fraserhutchison]

Anyone else get the issue that Ryan was getting, where he couldn't change the lightmap resolution in the StasticMesh Info panel?

[heartwarrior]

Thanks for the tutorial.
¿ can we force to give the same lightmap density to an specific objects ? For example I decide green color ligthmap density is perfect for my walls, then I click on each wall and I setup the lightmap resolution until get the green color, I do that action manually for each wall, but what I want is to select all my walls at once, and UE will setup automatically the diferent lightmap resolution to give the same green color density for all walls, ¿ how to do that ?

[sachak]

I am having the same issue as you. Cannot change the values in that spreadsheet. I am coming from unity that has an exceptionally well thought out Lightmapper that lets you do all of this on a global level instead of having to go into each mesh in your level and change individually which really is not ideal especially in a massive level!

[MalikRockie]

Can you show us how proper lightmap UVs for assets should be made? for example, whenever I make modular walls and set them up next to eachother and then bake the lighting I get light seams even at very high lightmap resolutions.

[mikeholmes]

how do I get rid of the thin light at the bottom of my wall in my house

[Si-Toecutter]

Been stuck on a lightmap issue for days, one particular room, no matter where i change the lightmass volumes, no matter how many times i rebuild it does not place enough cells in that room, it acts like its an outdoor space with no static meshes near it yet the room it just a duplicate of others in my map which are fine... any help appreciated

[JamesBrett]

When I open the lighting static mesh info its empty, why is this? (UE4 beginner here)

[youtubiyoutubipel]

Wait, so you can have non power of two values in the lightmap resolution without compromising performance!?!?! This is news to me.