The ARFaceTrackingConfiguration of ARKit places ARFaceAnchor with information about the position and orientation of the face onto the scene. Among others, this anchor has the lookAtPoint property that I'm interested in. I know that this vector is relative to the face. How can I draw a point on the screen for this position, meaning how can I translate this point's coordinates?
from ARKit 2 - FaceTracking - How to display the lookAtPoint on the screen
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