[DiThi]

N3DS face tracking is only used to correct the stereo separation (so each eye sees a separate image without having to be exactly on the center), not to move the scene depending on where you are. So if you have a scene like in that experiment, you would see it skew to the opposite direction you move your head. Also the vast majority of games don't have that much depth anyway, even at the highest setting, probably because the scene doesn't move accordingly and would make people dizzy.

[drosan]

Yet it was essentially the same technology that was named "wild experiment" in the article above.

Also visually the scene does move accordingly, mostly because the top display is tecnhically two displays in one and they render the scene from 2 different angles.

[DiThi]

The virtual cameras don't change (the games would have to be changed), so the parallax effect is not there. The only thing that changes is the grid of limes that obscures one image for each eye.

The only thing in common is that both have head tracking, that's all.

[drosan]

Yep, and that is exactly what I addressed in my first comment - that head tracking mechanism was already used in mainstream technology piece.

[alexvoda]

This reminds me of this demo from 2007 https://www.youtube.com/watch?v=Jd3-eiid-Uw

And also didn't the Amazon Fire Phone have head tracking?

Also found this, done on an iPhone in 2011: https://www.youtube.com/watch?v=7saRtCUgbNI

Or this table using a Kinect in 2012: https://www.youtube.com/watch?v=2CbiOikirrg

[DiThi]

The "experiment" is _how_ head tracking is used, not head tracking itself. I agree it's not exactly new, but nobody bothered to make it for the iPhone X until now.