Theo dõi
Eye tracking
Còn gọi là gaze tracking, eye-tracking, ET
Eye tracking uses small cameras inside a headset to follow where your eyes are looking, enabling gaze-based menus, foveated rendering, realistic avatar eyes and automatic IPD checks.
Eye tracking adds inward-facing cameras and infrared lights around the lenses that watch your eyes many times per second. Software then works out the direction of your gaze and, on some headsets, the position of your pupils.
What it is used for
- Input: on the Apple Vision Pro, you look at a button and pinch your fingers to select it, so your eyes act as the pointer.
- Performance: eye-tracked foveated rendering draws full detail only where you are looking, saving GPU power. The PlayStation VR2 uses this in many games.
- Social presence: avatars can mirror your eye movements and blinks.
- Fit: some headsets use it to measure your IPD or to help you line up the lenses.
Calibration and privacy
Most headsets ask you to follow a few dots during setup to calibrate tracking. Gaze data can be sensitive, so platforms generally treat it as protected and limit what apps can access. Check a headset's privacy settings to see how eye data is handled.
Other headsets with eye tracking include the Samsung Galaxy XR, the Meta Quest Pro and the HTC VIVE Focus Vision.
Thuật ngữ liên quan
- Foveated rendering
- Foveated rendering draws the center of your view, or the spot you are looking at…
- Hand tracking
- Hand tracking lets a headset see your bare hands with its cameras and turn finger movements into input, so you can point, pinch…
- Interpupillary distance (IPD)
- Interpupillary distance (IPD) is the distance between the centers of your pupils…