What's the best way to check if iOS / Android device is capable of Face Tracking. I tried using ARFaceManager.descriptor but descriptor property seems to be null on iPhones which don't support Face Tracking. Am I missing something?
If the descriptor is null, this means Face Tracking is not supported. https://forum.unity.com/threads/arfoundation-face-tracking-step-by-step.600313/#post-6048314