How did Filippo Brunelleschi and Leon Battista Alberti contribute to the development of perspective?

Filippo Brunelleschi and Leon Battista Alberti were instrumental in the development of linear perspective, a system that revolutionized Western painting by allowing artists to create the illusion of three-dimensional space on a flat surface.123

Filippo Brunelleschi’s Discovery

Around 1415, the architect Filippo Brunelleschi rediscovered the mathematical principles of perspective, which had been known to the Greeks and Romans but were lost during the Middle Ages. Through his experiments with painted panels, he demonstrated the concept of a single vanishing point—where parallel lines appear to converge—and the relationship between distance and the diminution of objects as they recede from the viewer.13

Leon Battista Alberti’s Codification

While Brunelleschi discovered these laws, Leon Battista Alberti was responsible for codifying them for the artistic community. In his seminal 1435 treatise, Della pittura (On Painting), Alberti provided the first written rules for constructing perspective. He described the process as viewing a scene through a window, where the painting acts as a vertical plane intersecting the viewer's visual pyramid. His work transformed these practical observations into a formal theory, establishing the geometric foundation that defined the Renaissance style.145