Question ARFoundations (ARCore) missing values in light estimation

I'm currently working on a Light Estimation algorithm for my Master Thesis and since my software uses ARCore anyway I wanted to compare the result against the built-in Light Estimation from ARCore for evaluation.

So I activated the light estimation in the ARCameraManager Object and used the provided sample script as starting point. I get values for the ambient spherical harmonics and main light direction for example, but for some reason I don't get any values for average brightness, color correction or main light intensity. I want to use those values to control a directional light to created shadows mainly.

Anyway, what could be the reason for the missing values, how can I check if any options are missing or wrongly set? The documentation is a bit sparse when it comes to things not working as intended.

Any help is much appreciated!

 

Not all features are supported in all configurations. Please review this documentation.
https://docs.unity3d.com/Packages/com.unity.xr.arcore@4.2/manual/index.html#light-estimation