No special skill is required to light a stage; we need only switch on the fluorescents, or perform in daylight like the Greeks and Elizabethans. Our troubles began when we decided that we wanted to control light. The sun remains as intractable as Phaeton found it, so we excluded it by enclosing our theatres. Even then, the battle with artificial light was long and hard, Philippe Jacques de Loutherbourg's Eidophusikon established the goal: a measure of control that could duplicate on stage and in motion the painterly variation of color and chiaroscuro that had been mastered on canvas in the High Renaissance and Baroque.