May stressed the new "effect" was not a hologram, calling it "an optical illusion of sorts".

BBC: Freddie Mercury

While current screens have a great gee-whiz feel, they are still a far cry from achieving the effect demanded of most three-dimensional researchers: a realistic, moving hologram like the one of Princess Leia projected from a lens inside R2D2 in Star Wars.

FORBES: Adventures in the Third Dimension

Visually these boards have a washboard effect-and as the varied grain intersects the wood surface and light at different angles, a hologram-type depth emerges.

NPR: Excerpt: 'A Splintered History Of Wood'