Published online by Cambridge University Press: 01 May 2008
This paper deals with the transfer of Arab visual theory in the Middle Ages, asit is believed that the cultural significance of this transfer needs a newemphasis. Mathematical perspective was invented in Florentine Renaissance Art.However, except in the history of science, it is a little known fact that thisvisual theory was based on the Book ofOptics, written by Ibn al Haithan, also known as Alhazen, and wastranslated, probably in Spain, with the Latin title Perspectiva. We therefore can speak of a double history ofperspective, as visual theory and as pictorial theory. The main argument is toidentify the importance of images, which separate Arab thought from Westernthinking. It was the transformation of mathematics into art, in the Westernsense, that allows us to distinguish two different cultures. In this process,the invention of mathematical space by Biagio Pelacani was an important step.Thereafter, the gaze and its looking space became a new concern of theRenaissance.