Looks like it’s not possible … Improvement of DeviceOrientationCamera: Recover the real orientation North / South - Questions - Babylon.js
If that’s the case can I guarantee that the subject of my 3D scene is always in frame on initialization, across devices i.e. the scene starts out with subject directly in front and camera then moves relative to this? I’m concerned that more modern devices that do support absolute orientation may act differently to older devices that only support relative orientation. Or does Babylon DeviceOrientationCamera always produce consistent relative orientation regardless of device?