I’m not sure if that data will be available on iPhone. Still, I understand that on the Vision Pro, none of this data (and similar data) will be available to dev

I’m not sure if that data will be available on iPhone. Still, I understand that on the Vision Pro, none of this data (and similar data) will be available to developers due to privacy concerns. That said, you might be able to do this already with iDevices equipped with LiDAR (e.g., iPhones Pro and iPads Pro). They’re already used to create 3D objects, but I suppose no one has used them yet to take the next step you are talking about.