Three-point lighting

The classic triangle: key to model, fill to soften, backlight to separate. Not a rule; a grammar to depart from knowingly.

Three-point is lighting's complete sentence: the key states, the fill moderates, the backlight lifts the figure off the world. Learn it and any face anywhere can be made legible and dimensional; it is the craft's common tongue, from portrait studio to soundstage.

Its status as default is exactly why departures speak: kill the fill and you have noir; drop the backlight and the figure sinks into the world; light with practicals only and realism arrives. The grammar is not a look but a set of named decisions, and knowing it is what makes breaking it a choice rather than an accident.