What do we call the process of determining what to include and exclude; deciding what is to be seen (onscreen space) and not seen (offscreen space); and controlling the distribution, balance, and spatial an perspectival relations of what appears on the screen?

answer; timpani,horns and bells;

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.