From many angles, including shows and technology, the gap is too big.

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On television screens, 3-D is difficult to achieve without glasses because people watch from many different angles.

CNN: Mark Milian

Facebook continues to face challenges, including whether its aggressive push to make money from so many angles will eventually turn off consumers.

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Moreover, this rendition doesn't require viewers to look from certain angles or with certain lighting scenarios like many forms of holography oftentimes do, and the team hopes to eventually conjure a 3D image of a human "if they can substantially enlarge the device size" while keeping its current attributes in tact.

ENGADGET: NICT and Kobe University team up to form "floating visual" 3D display