Global Illumination?

[Flizzy]

"Enable Lumen for global illumination" - can someone explain me what this option exactly does, because I figured that when I have this setting only on "high" while every other graphical setting is at max I get 100+ FPS easily, but when I turn it to "cinematic" my FPS drop to less than 30.
Made a couple landscape screenshots for comparission and I can't spot a slightest difference either...

[Vladolf Putler]

go somewhere inside your factory with windows and look on the shadows and where the light is cast, they are as they should be in real life, thats what this does

edit: I think this is the thing which caused my fps frop to 50%, but it looks really good, hope they will optimize this and I think this will be the focus for devs before their vacation

[Jack-o-Lantern]

Lumen use a completely different method of calculating light and shadows....

You should spot differences specially in indoor areas or in areas where you have set additional light sources (additional from default sun light)

[Flizzy]

Ah here we go

I used a new savegame where I had nothing build, but loading up an old savegame with indoor areas and I can clearly see a difference there, right!

Still tho, the FPS drop is way to hard for me to actually use it on max settings even on a new game, but I guess it's called "experimental" for a reason. Anyway thanks for clearing that one up

[FriendCalledFive]

Just turn it down a notch or two from cinematic. I use performance and it still looks pretty and I get over 100fps.