Unity 5.5 Occlusion not working after updating

Unity Engine
1

We’ve Just updated from Unity 5.4 to 5.5

Each scene gave an error saying “Occlusion culling data is out of date. Please rebake”.

After rebaking, the visualization shows no occlusion culling working when back in 5.4 it was. The frame rate is significantly worse and the the file size is a lot smaller (was around 1.3MB on 5.4 now is 137KB in 5.5)

Any ideas on why this could be or how to fix it? Are there any changes that could effect this? I know 5.5 has multi-scene occlusion but this is all just through 1 static scene.

Thanks

2

We do have an issue where the editor crashes when reading a scene with occlusion culling from an asset bundle, but I can’t find a case that’s similar to yours. Could you send us a bug report and let me know the report number so the team can take a look?

3

Hey, thanks for helping with this.

The report number is 858407

1 Like
4

What that?

5

Occlusion culling with multiple scenes loaded.

6

Oooo… next thing you know we’re all going to be carrying laser guns and FLYING our cars to work.

7

I found the issue.

Apparently Occluders without a material now don’t get counted in the bake process. Adding a material to the Occluder mesh worked.

I don’t think this was documented anywhere in the 5.5 update notes (was working in 5.4 but not in 5.5)