A gyroscope measures how fast a phone rotates in a particular direction. In mobile 3D and mixed-reality experiences, rotation data helps translate head movement into the viewer’s perspective. section 15.2
A gyroscope contributes to head tracking alongside:
- An accelerometer, which detects movement speed in a direction. section 15.2
- A magnetometer, which indicates the phone’s compass direction. section 15.2
- Sensor-fusion algorithms, which combine these measurements to determine head movement more accurately. section 15.2
Phone-based virtual reality
Place a phone in a cardboard viewer and look around: gyroscope data reports rotational head movement, allowing a 3D scene to respond instead of relying on mouse dragging. Split viewpoints can then create a stereo effect. section 15.2
