3 ms·

what if it is dark? this guy even had issues just using it on stage

• Shikadi 9y ago
  It probably uses an IR light source to illuminate your face invisibly. Trouble on stage may have been from stage lighting drowning out the IR, though that parts just speculation. I didn't watch
  • theshrike79 9y ago
    It definitely uses IR, they said so. The failed attempt was caused by a rebooted phone, it wanted the passcode even before it saw his face.
    • Shikadi 9y ago
      Right, but I was saying it probably uses an IR _source_ to illuminate your face in the dark. Then again, humans probably just emit enough IR without it.
• function_seven 9y ago
  It uses an infrared camera, dot projector, and floodlight. It doesn’t appear to rely on ambient lighting. But the guy did have issues on stage...
• astrodust 9y ago
  Pre-production phone. Beta software. Mistakes happen.
  • deleted 9y ago
    [deleted]
• saagarjha 9y ago
  The issues were because the phone had just been restarted, which disables Face ID.