These are ray-traced images generated mostly with the Persistence of Vision ray-tracer.

A surfeit of honey cloys the tongue; a surfeit of wine addles the brain; so a surfeit of ease guts a man of strength. Light, warmth, food, water were free to all men, and gained by a minimum of effort. So the people of Ampridatvir, released from toil, gave increasing attention to faddishness, perversity and the occult. — Jack Vance (The Dying Earth)