Additive Scene Lighting

[final rose]

I'll just create a thread so its easier :)

So far:
This is the steps I've taken

1. Lighting Setting is the same on both scene (With realtime lighting & GI turned off, and Baked GI on)
2. Bake Lightmap (All lighting is set to baked, both directional & point)
3. LoadSceneAdditive(additiveScene, LoadSceneMode.Additive)
4. SetActiveScene(additiveScene)

When I build and run the scene, the scene is very dark, but I can see the light colors.
Lighting seems to be perfectly fine in Editor.

[pearl kettle]

Hey yes good idea

[final rose]

Editor vs Build

[pearl kettle]

It looks like the environment light is missing I think? Or the directional? Kind of hard to tell.

[final rose]

This is the setting for directional light

But it shouldn't be missing, since its set to bake.

Lighting setting is set to just bake with no realtime

[pearl kettle]

Are you baking all the scenes?

There are some weird things that can happen with env lighting and additive scenes sometimes.

[final rose]

Gave this a try, same result

Strange part is lighting debug looks like it includes directional light.

It looks well lit

[pearl kettle]

And you're sure that this scene is the active scene when you load them in the build?

[final rose]

Additive Scene Lighting

[final rose]

It should be, I’ll double check

[final rose]

var activeScene = SceneManager.GetActiveScene();
Debug.LogError($"{activeScene.name}({activeScene.buildIndex}) : {sceneName}({(int)sceneName})");

Its the same scene

[pearl kettle]

Hey, sorry for the delayed response. I don't know what's going on here off the top of my head and I don't think I'll be able to investigate in a timely manner. Maybe ask in the channel again and someone will have a different idea?

[final rose]

Might this be a build only bug? Thanks for the response, I’ll try ask around as well, tell me if you need more information.

[final rose]

I encountered this thread https://forum.unity.com/threads/lighting-looks-darker-on-build.1250500/
I will give it a try when I have access to the project.

I noticed I did have SSAO turned off

[final rose]

Also found this : https://issuetracker.unity3d.com/issues/lightmap-is-lost-when-loading-additive-scene

[final rose]

I confirm turning on SSAO in RendererFeature fixed it.

This is strange

[pearl kettle]

That is strange 🤔🤔

Probably worth contributing to that forum thread

Maybe it's a bug

[pearl kettle]

This is fixed / doesn't look like the same issue

[final rose]

They said it has something to do with shader stripping, and it made sense since the issue only appears on build.

But either case it should be fixed, since I have no reason to use SSAO. Hope Unity's side will investigate it!

[pearl kettle]

Hmm interesting. Makes sense but definitely doesn't sound like a feature.

[final rose]

I'd like to request to keep me updated on this case

If it isn't too much trouble

Thanks for the help!

[pearl kettle]

I'll try, but we have automated systems and the public issue tracker for this reason, so I would not recommend relying on my memory about an issue that my team probably doesn't own.

[final rose]

Is there an open issue tracker ID for this case? Because I've not reported it.

[pearl kettle]

If you report it you'll get it by email- which is best because we'd probably need your (edited) project to reproduce the issue instead of trying to get there from scratch.

[final rose]

It should be easy to reproduce, create a scene, bake it, turn off all renderer feature, then build.

Then just load the scene

Then try again with SSAO renderer feature up

[final rose]

Any trackers available yet? highly interested in following this issue :)

If not, I might create a report, but that will take long for QA to approve and pass it down to the GI team.

[pearl kettle]

not that I've seen. I think your best bet is to make the report and eventually it will reach us (the GI team)

[final rose]

I still insist you should open the issue, because QA takes 3 - 5 months to approve issues based on past experience.

A lot of people are affected by this

https://forum.unity.com/threads/turn-urp-ssao-on-and-off-at-runtime.1066961/#post-8183144

https://forum.unity.com/threads/turn-urp-ssao-on-and-off-at-runtime.1066961/#post-8188404

https://forum.unity.com/threads/turn-urp-ssao-on-and-off-at-runtime.1066961/#post-8345079

https://forum.unity.com/threads/turn-urp-ssao-on-and-off-at-runtime.1066961/#post-8613702