Looked like a Leap Motion controller to me.
[EDIT] Seems it was - Geco MIDI – Ultraleap Gallery and Tip - Using Leap Motion Sensor To Control Dolby Atmos Panner in Pro Tools | Pro Tools - The leading website for Pro Tools users
Looked like a Leap Motion controller to me.
[EDIT] Seems it was - Geco MIDI – Ultraleap Gallery and Tip - Using Leap Motion Sensor To Control Dolby Atmos Panner in Pro Tools | Pro Tools - The leading website for Pro Tools users