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Gesture

Gesture works in the combination with Gaze, or followed by Gaze. First, Gaze on some object, then take an action using Gesture. While Gaze is like moving the mouse cursor, Gesture in HoloLens is like a mouse click or tapping in a touch-based application.

The sensors inside HoloLens can recognize a hand gesture as long as we keep our hands inside the viewable range of the HoloLens.

HoloLens viewable range and gestate action within the viewable range

There are several types of gesture, including the following:

Bloom
Air Tap
Tap and Hold

The Bloom gesture will invoke the Start menu; we discussed about it in the HoloLens Shell section; blooming again will dismiss it. So, at any point , if you want the start screen back while using HoloLens, you can simply use the bloom gesture. Using the Air Tap, you can select holograms and take action on them. Air Tap is like a mouse click, where we can take an action by tapping our finger down and then taking it back up. Tap and Hold works like drag and drop with a mouse. Using this gesture experience, you can move an object from one position to another position.

Illustration of Bloom, Air Tap and Tap and Hold Gesture