To manipulate virtual objects in VR, you have to use an Oculus Touch or other "virtual wand" controller like some kind of hands-off, digital tong. To get an actual "haptic" or touch experience, you need real objects, but it's computationally challenging because the system needs to precisely track each one. Researchers from Microsoft, USC and the University of Waterloo have discovered that by manipulating how you see your body and the world in VR, they can make you think that a single physical object has magically multiplied.
Source: Microsoft (YouTube)
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