(b ?Arezzo, 1579; d Florence, 1642).
Italian writer, painter and architect. He was descended from an illustrious Aretine family (his grandfather was Cardinal Benedetto Accolti (1497–1549), Archbishop of Ravenna and Secretary to Pope Clement VII). He was librarian and architect in the service of Cardinal Carlo Medici, and a member of the Florence Accademia and the Accademia di Disegno. He is known for Lo inganno degli occhi (1625), a three-part treatise (on plane figures, solids and shading) in which he showed how perspective practice derived from principles of visual perception. In this he examined classical and modern theories of vision, including those by Euclid (flc. 300 bc), Witelo (c. 1230–80), Franciscus Aguilonius (1567–1617) and Guidobaldo del Monte, and criticized contemporary writers on perspective for underestimating the importance of light and shadow. He emphasized the need to distinguish parallel solar rays from diverging point sources of light, such as candlelight, and presented some original ideas on arranging compositions with multiple vanishing points and on foreshortening pictures within pictures. Chapters on anamorphosis and ...