Sorry, but no. No such things were shown.
Well, a three-dimensional object of unknown physicality was shown. For all we know, even the tables from which the games emerged were holographic, and could be replaced by holographic trees, pole dancers or other ornaments at the push of a button.
But yeah, no effort was made to suggest a visual illusion nature for the fancy games. Then again, effort was
made to suggest that shower stalls clothe Starfleet officers with the help of transporter technology, but none of this really manages to be evident on screen...