Unreal Engine 5 - Using Lumen with real world light and camera values

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[MrANavarra]

It's really what I was looking for! I always crancked up the directional over 100k lux but in this way all other small lights set in candelas were overhelmed, so working in manual mode was absolutely useless... thankyou!

[robertprescott]

Great tutorial. I will definitely be using that process to light interior scenes. Please make

[peterallely]

Thanks! I had settled on this same method after a lot of frustration, so it’s nice to see someone else doing the same! Hope to see some new content from your channel mate! This is great!

[OfficialCloverPie]

would love to see some tips or tutorials on how to make the interior (day) lighting look more movie/cinematic..., and how to adjust camera and post process and compositing..

[BarryLester]

Sorry for nitpicking, but the problem is that you have a physical value for the sun's illuminance, but the luminance value of the skylight is not calibrated to that. I mean the sun has about 65k lux when it's at about 10am or 1pm on a partially cloudy day, and you need to adjust the intensity of skylight, so the sky has a luminance value of 5-7kcd/m2. Your camera setting is spot on for an interior scene. setting the camera at 1/100, f/4, ISO 800 is the same as enabling auto exposure and has the min max ev100 locked at 7.67, which is enough for an interior shot.

[ChristopherZoog]

Great video! Looks really realistic. Regarding the skylighting bug, Just a guess here, but it looks like lumen is falling back on the screen space effects when looking in that corner. Each wall should be a separate mesh to fix that. Take a look at the "lumen scene" debug view, if the walls in that corner are black, then there is an issue with the lumen proxy mesh. Breaking the walls into sperate meshes may help.

[CRVN]

When I add the sunsky, the directional Light intensity is set to 750 000lux at default

Edit. I dont know if i originally made a mistake or if its since UE5 is now in early access, but I see the sun is by default 75000lux

[cathychoi]

really appreciated your well performed tutorial!

[alxleiva]

Hey, regarding the indirect lighting intensity of the Sunsky, I can confirm it does work but it's out of scale because of those high values of the sun. If you set the intensity to something like 10000 you'll see how it increases a little bit the GI. I'd say Lumen wasn't developed with physical based units in mind and that's find, they can fix it easily.

[robertprescott]

Cant wait for the tutorial on this, lighting is so difficult for me. Grrrr

[natureantilles.]

thx bro with your tuto ! it's a great job ! and for outdoor lighting ?

[kaizendigital_id]

where do you get SunSky actor? is it BP that you made yourself?

[杨志豪-lf]

What causes the reflection to have a noisy flicker

[majidovgokdal]

Nice video thanks for explainations, I always have a problem in ue after baking some objects turning darker I tried to increase GI samples quality and many other tricks bit no luck, do you have any solution for this ?

[bernhard.design]

Did you figure out how to use the AO inside the PPV?

[chrisnguyen]

Hello Sir, I am using ue5.0.3 but I can't find the sun sky at plugin, could you tell it details?

[marcomanunta]

Dude, why the frame rate of the animation at the beginning is so slow ?

[AlexReimann-fwhl]

how did you get this "sun and sky" light, I do not see it in my project

[ArikiSun]

5:05 i cant see sunsky in unreal 5.2 can you direct me ?

[robertprescott]

Any advice on how to light a completely close area, like a TV studio? I am working on a virtual set on and struggling to create realistic lighting.