Light in painting is not a style but the craft thread running through the whole history of the medium. Light conditions the perception of color, texture and volume; its interplay with shadow models form, organizes the composition and fixes the time of day, and it carries symbolic weight - most often divinity in religious imagery. The depiction of light evolved from the even, intrinsic illumination of medieval panels to the directed extrinsic sources of the Renaissance, Leonardo's sfumato and aerial perspective, Baroque tenebrism and Caravaggio's selective glare. In the seventeenth century Claude Lorrain and others freed landscape from narrative and studied nature at different hours; Impressionism and luminism then made fleeting light itself the subject. Painters name their tools accordingly: chiaroscuro, shading, backlighting, high and low key, nocturne.
Lead image of the Wikipedia article "Light in painting".Public domain (credit: Claude Lorrain) · source
Defining characteristics
Chiaroscuro and tenebrism: volume built by steep light-against-dark contrast
A consistent, named light source with directional cast shadows
Luminous focal points that pull the eye to the narrative center
Aerial perspective: distance dissolved in light, haze and cool blue
Time of day rendered through the color of light - warm dusk, clear noon, moonlit nocturnes
Symbolic light: radiance standing for divinity, knowledge or spiritual presence
Key figures
Caravaggio(1571-1610) — Tenebrism made directed light a dramatic, meaning-carrying event
Claude Lorrain(c. 1600-1682) — Ideal landscape light; studied nature at different hours of the day
Johannes Vermeer(1632-1675) — Calibrated interior daylight that quietly models every surface
J. M. W. Turner(1775-1851) — Light, steam and atmosphere pushed toward pure luminosity
Example works
The Disembarkation of Cleopatra at Tarsus — Claude Lorrain (1642)