In the historical perspective, Bellini was essential to the development of the Italian Renaissance for his incorporation of aesthetics from Northern Europe. Significantly influenced by Antonello da Messina, who had spent time in Flanders, Bellini made prevalent both the use of oil painting, different from the tempera painting being used at the time by most Italian Renaissance painters, and the use of disguised symbolism integral to the Northern Renaissance. As demonstrated in such works as St. Francis in Ecstasy (c. 1480, at left) and the San Giobbe Altarpiece (c. 1478), Bellini makes use of religious symbolism through natural elements, such as grapevines and rocks. Yet his most important contribution to art lies in his experimentation with the use of color and atmosphere in oil painting.