Atmospheric perspective is a theory that was developed by who

Atmospheric perspective was used in painting in the 15th century and it gave them much more accuracy with how they looked, it was also written by polymaths like Leon Battista Alberti and Leonardo da Vinci.

photography had emerged as an elite art pursued by a few creative individuals for a few wealthy patrons. but now, said bauldelaire, it was succumbing to "the great industrial madness of our times." it was becoming a mass production industry that catered to middle-class tastes, including a taste for gadgetry. the stereoscope, the first 3d imaging system, had turned looking at photographs into parlor entertainment. a "thousand hungry eyes were bending over the peepholes of the stereoscope as though they were the attic-windows of the infinite.