Investigate controller-free operation (using hand tracking)

[jackjansen]

I’ve been thinking about reasonable ways to do interaction in VR2Gather without controllers (i.e. using the hand-tracking feature of the Quests and some other controllers). Presuming the API gives us the information about “where each finger is pointing”, which I think it does, the current interactions of extending your index finger (for example to press a virtual button) or grabbing a virtual object by doing a grab gesture should be easy.

But we need gestures for “prepare to teleport”, “activate teleport” and “show the heads-up display”.

Here are some ideas:

• “Show heads-up display” is done with touch-thumb-tip-to-index-finger-tip. This seems to be a gesture that is becoming standard for activating things. The HUD should then be brought up in a place so the user can press any button with their index fingers.
• “Prepare for teleport” is done by extending your index and middle finger, and pointing your thumb upwards. The gesture little kids use if they pretend they have a pistol (at least here in NL the kids do that)
• “Activate teleport” is then done by moving your thumb down to touch the two extended fingers.