Wet-on-wet, or alla prima, direct painting or au premier coup, is a painting technique in which layers of wet paint are applied to previously administered layers of wet paint. Used mostly in oil paint
Diego Velázquez, The Jester Calabacillas (Madrid) (1637-39) is a prime example of the wet-on-wet technique.
Frans Hals, Jasper Schade van Westrum (1645); painted mostly wet-on-wet. The forehead has portions of wet (white) over dry (brown/black).
Rembrandt, Portrait of Jan Six (1654) has numerous uses of the wet-on-wet method.
Winslow Homer, Rowing Home (1890), an example of the wet-on-wet technique in watercolor, especially in the sky
The Arnolfini Portrait is an oil painting on oak panel by the Early Netherlandish painter Jan van Eyck, dated 1434 and now in the National Gallery, London. It is a full-length double portrait, believe
Wet-on-wet
…development of oil painting and was used by several of the major Early Netherlandish painters in parts of their pictures, such as Jan van Eyck in the Arnolfini portrait, and Rogier van der Weyden. Since the mid-19th century, the use of commercially produced paints in small collapsible tubes has facilitated an easily…
Detail showing the male subject, probably Giovanni di Nicolao Arnolfini
Detail showing the female subject and convex mirror
Jan van Eyck, Portrait of Giovanni di Nicolao Arnolfini. Gemäldegalerie, Berlin