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| [* black] Survey says: a six-degrees-of-freedom [https://en.wikipedia.org/wiki/Electromagnetic_coil#Electromagnets|magnetic sensor coil|new_window=true] for [https://en.wikipedia.org/wiki/Positional_tracking#Magnetic_Tracking|tracking the position|new_window=true] of the controller. | |
| [* icon_note] The intensity of the three perpendicular magnetic fields is measured to determine the position and orientation of the controller relative to the headset. | |
| [* black] Cracking open the controller, we find the—much bigger—emitting half of the tracker, and an 8.4 Wh battery to boot. | |
| - | [* black] The copper |
| + | [* black] The copper shielding sprayed into each housing piece protects the coils from interference, and helps direct the magnetic field. |
| [* black] Interference may explain the tracker's odd placement, but this may be a temporary solution. It's old tech, and will probably be harder for left-handed use. | |
| [* icon_note] Not pictured: we also dug up what looks like a custom-designed [https://d3nevzfk7ii3be.cloudfront.net/igi/MGWOokdPJY2ZEjdU|trackpad ringed with LEDs|new_window=true] (for future light-tracking hardware, perhaps?). |