Portraiture is a genre that has long been explored in the history of art. Ancient Egypt, Greece, and Rome depicted gods and nobles. In medieval Europe, portraits were intended to convey religion. The Renaissance period, when the subjects of portraiture became the general public, and artists began to depict individuality and the inner life of the subject. The modern art period, which saw the development of new techniques, and the transition to the modern era with the use of multimedia. In each period, most portraits were painted by the hand of the artist and delivered to the viewer in a single output, whether finished or unfinished. However, today's painters are not only human. Computer systems can also be painters. These systems never sleep, and the paintings they create never settle into a single finished system. An unfinished portrait. This is a new form of portrait that will never be completed.