Trimensional

It is owing to this fundamental fact that the two retinal images of the same trimensional object are slightly different from each other, and this difference is technically called lateral disparity.

Source: wiktionary

Sutt indicated the trimensional star-map on the table. He adjusted the controls and a cluster of some half-dozen stellar systems blazed red.

Source: wiktionary

Photographic aggregates, as stated previously, can be made which produce single images with all the attributes of stereoscopic vision and which the writer termed "trimensional images." […] Trimensional pictures, the writer is certain, will replace the present geometric pictures as a matter of course. The trimensional perspective will lend a touch of amazing reality to photographs and reproductions of any and all kinds whatsoever.

Source: wiktionary

Haskell turned to the captain's desk, studied the trimensional photograph of an Ermesian native. A big creature—over seven feet tall—and heavy, with thick, short legs, hairy torso, long muscular arms terminating in broad, flat hands with multi-jointed fingers tipped with retractile, vermilion-dyed claws.

Source: wiktionary