Btw, it is not about 3D, thus, no need for eye tracking. It is more about panoramic experience. And there is one part they didn't show you, but, I think it reconstruct the room in real time as the video claimed. Meaning, if your cat walks over, the image will adjust to your cat. Obviously it is overdone, but, since MS research already have such tech, they just reused it. and I loves the shockwave effect. Had to keep replay it to make sure they are not faking it.