The animations were built with a Unity 3D app, while the lights controlled by a built-in Arduino. The device can also track your face, so Cortana is always looking in the right direction.
moar: http://unt1tled.com/blog/cortana-hologram-working-concept
Pokemon Go says
Nice post, follow me as a friend +Paul Spoerry
Eto Demerze says
+John Bump