arfoundation-samples VS 3d-models

https://github.com/Unity-Technologies/arfoundation-samples/

If you are looking to get started with the Unity platform and want to get started with code. Here is a great Github repo with a detailed overview and some well-structured code samples: https://github.com/Unity-Technologies/arfoundation-samples

Try AR Foundation samples: https://github.com/Unity-Technologies/arfoundation-samples - can you run some of those and confirm they run fine?

Sure, you can create AR apps for Android and iOS with Unity's AR Foundation package. For examples, check out the AR Foundation Samples repo.

The ARFoundation Samples repo is up-to-date, but you need to use the correct branch for your specific version of Unity. See the README's "What version should I use?" section.

This code is Unity's sample code which toggles between enabling and disabling the plane detection. You can check all their samples from here. Save the script and go back to Unity editor.

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.

and this is the one for trackable image (like qr code): https://github.com/Unity-Technologies/arfoundation-samples/blob/main/Assets/Scenes/ImageTracking/BasicImageTracking/TrackedImageInfoManager.cs

Download a picture frame 3D model from here and an image of a low poly world from here. Put them in the project's Asset folder.

Right click on the Hierarchy, choose Create Empty and name it ARModel. Download the frog 3D model from here and add it to the Unity's Asset folder. Drag and drop the frog model to the hierarchy and move it as a child of ARModel. Make sure that the child frog model is positioned in 0, 0, 0.