The themes that preoccupied painters of the Italian Renaissance were those of both subject matter and execution – what was painted and the style in which it was painted. The artist had far more freedom of both subject and style than did a Medieval painter. Certain characteristic elements of Renaissance painting evolved a great deal during the period. These include perspective, both in terms of how it was achieved and the effect to which it was applied, and realism, particularly in the depiction of humanity, either as symbolic, portrait or narrative element.