
xxvi Introduction to Process Dependency
Leonardo da Vinci sought to create a spectacular new style of painting in
a work entitled “Battle of Anghiari.” The job was commissioned by the city
fathers for the great hall of the Palazzo Vecchio in Florence, which still stands
today. It was to be sited opposite the never nished “Battle of Cascina” by
Michelangelo.
Traditional fresco techniques require the artist to paint onto a small patch
of wet plaster. Each segment represents one day’s work in a larger composi-
tion. Once dried, the plaster holds the brush strokes for centuries. Fresco
painters are restricted in the pigments and brush techniques t ...