What is the term for the use of light and shadow in painting to create a sense of three-dimensionality?

The artistic technique that employs strong contrasts between light and dark to create the illusion of depth and three-dimensionality in a painting is known as chiaroscuro. This Italian term literally translates to "light-dark" (chiaro meaning "light" or "bright" and scuro meaning "dark" or "obscure"). By skillfully manipulating these tonal differences, artists can make figures and objects appear solid and rounded, giving them volume and a sense of presence on a flat canvas.

While elements of using light and shadow to suggest depth can be traced back to ancient Greek art, chiaroscuro truly flourished during the Renaissance and Baroque periods. Renaissance masters like Leonardo da Vinci refined the technique, using subtle transitions between light and dark to create a soft, atmospheric realism, evident in works such as the "Mona Lisa."

It was in the Baroque era that chiaroscuro reached its dramatic peak, with artists like Caravaggio becoming renowned for their intense, spotlight-like illumination against deep shadows. This bold approach, sometimes called tenebrism when taken to an extreme, heightened emotional tension and drew viewers directly into the scene. Other notable artists who masterfully employed chiaroscuro include Rembrandt, who used it to express inner psychology and mood, and Georges de La Tour. This enduring technique remains fundamental in art, influencing not only painting but also modern photography and cinema.