Shape, form and volume have always been coordinates of great art in painting, as they can transmit feelings, emotions and a certain sense of reality making the work truly valuable.
Leonardo da Vinci was one of the few who succeeded in creating these perceptions with impressive skills, using the technique known as sfumato, in Italian, or vanished. Da Vinci's own definition for sfumato referred to this manner of painting as to the technique lacking borders and lines and situated beyond the focus plane. The painter subtly blends colors and tones so that the eye perceives only shadows, depth and volume. Perhaps the best known painting ever, and a great example for sfumato technique, is Mona Lisa.
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