Weird GI bake under terrain?

Unity Engine
,
1

Hi all! Im use last beta of 2019.3b6

Every time when im try bake the light on my scene - its bake good everywhere ,but not on models under ground =(

My light bake settings (No real-time GI)

5050826--495581--upload_2019-10-10_12-23-48.png
5050826--495581--upload_2019-10-10_12-23-48.png1913Ă—622 24.8 KB

The terrain has hole under building, but seems like baked light on terrain is good too
5050826--495584--upload_2019-10-10_12-25-53.jpg
5050826--495584--upload_2019-10-10_12-25-53.jpg1904Ă—923 415 KB

Examples of place where light baked good
5050826--495587--upload_2019-10-10_12-27-26.png
5050826--495587--upload_2019-10-10_12-27-26.png1118Ă—544 583 KB

But part of models under terrain hole (Red line) have artifacts
5050826--495590--upload_2019-10-10_12-31-18.png
5050826--495590--upload_2019-10-10_12-31-18.png1104Ă—558 757 KB

5050826--495593--upload_2019-10-10_12-31-44.jpg
5050826--495593--upload_2019-10-10_12-31-44.jpg1919Ă—910 159 KB

Is there way to fix that?

2

Hi

Not really sure what the problem is here. Is the light meant to come in through the hole and lit up the downstairs area and not cause artefacts? If so, you really need to crank up your bounce and sample count :slight_smile: Especially the indirect one. Hope that helps!

1 Like
3

when I disable terrain and bake light again - all light baked good

4

So everything is fine now? :slight_smile: Let us know if you have more issues!

5

yea, but I would bake scene with terrain too =)

6

Did you try the thing I suggested?

7

Could be something as stupid as needing to use special lightmap settings on the terrain such as “Is Transparent”.

8

im leave my laptop bake whole night with very good GI settings, but still happening that artifact while Terrain GI enabled =(