1) Masaccio was an early 15th century Italian painter who took Giotto's innovations in space and light further in works like the Brancacci Chapel frescoes. 2) In his fresco The Tribute Money, Masaccio introduced techniques like linear perspective, atmospheric perspective, and chiaroscuro to depict realistic three-dimensional space. 3) His fresco Holy Trinity in Santa Maria Novella was one of the first paintings to use mathematical linear perspective to depict space and features ascending figures to represent the journey from death to resurrection.