Verdaccio Painting: Undermodelling as Structural Method
In verdaccio painting, a cool, greenish underpainting mixture is used to model flesh before warmer tones are introduced. It is not an effect applied at the end of a painting, but an early structural decision that shapes the development of form from the outset.
Technical examination of fifteenth- and early sixteenth-century Italian painting confirms the presence of greenish-brown undermodelling beneath flesh passages (Roy, Spring, and Plazzotta 2004, 10–12). This preliminary layer established value relationships before pinks, reds, and highlights were added. The intention was not to produce a green cast in the skin, but to construct light and shadow with measured restraint.
For contemporary painters, verdaccio functions as a disciplined way of mapping light and shadow before full color is engaged. Once the darker and middle values are resolved in a cool, subdued mixture, later applications of warm color are less likely to disturb the overall balance. If the shadow beneath a cheekbone is correctly established at this stage, the addition of vermilion or a warm flesh mixture will alter hue without unexpectedly lifting or flattening the value. Because the underlayer remains thin, later color can settle over it without fully obscuring it, preserving subtle interaction between layers in both tempera and oil systems.
Figure 1. Unfinished verdaccio underpainting in Michelangelo’s Madonna and Child (Manchester Madonna), c. 1496–97, National Gallery, London. This unfinished panel reveals the greenish underpainting used to establish the shadow structure of the figures before the application of flesh tones. The cool verdaccio layer models the major forms of the face and body—forehead, cheek, jaw, and neck—by defining the middle tones and shadows in advance of warmer color. Because the painting was left incomplete, the relationship between the verdaccio modelling and the reserved highlights of the ground remains clearly visible. The image demonstrates how Renaissance painters constructed flesh by first resolving value and form with a subdued green underlayer, allowing later applications of pink and red tones to adjust color while preserving the established light–dark structure.
Verdaccio Painting in Historical Practice: From Terra Verde to Workshop Method
Italian panel painters frequently developed flesh over a cool greenish underlayer. Terra verde, a term used historically for natural green earth pigments typically composed of celadonite or glauconite, was one of the materials associated with this approach.
It is important to distinguish between historical natural green earths and many modern products labeled “green earth.” Traditional terra verde derived from naturally occurring minerals that tend to be relatively transparent and moderate in tinting strength. By contrast, some contemporary substitutes are blended from chromium oxide, iron oxides, or other synthetic pigments. These substitutes may differ significantly in opacity, tinting power, and long-term behavior in oil or tempera. When selecting a material for verdaccio painting, painters should evaluate whether the pigment behaves as a subdued, semi-transparent earth rather than assuming that any tube labeled “green earth” will perform in the same way as historical terra verde.
The method evolved from late medieval tempera practice and persisted into early oil painting. Technical investigation of Raphael’s early works describes a faintly greenish-brown underpaint beneath thin flesh layers (Roy, Spring, and Plazzotta 2004, 10–11).
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Thanks for sharing this article, George. It arrives just as I was contemplating how to begin the verdaccio layer on a portrait study over the Rublev Egg Tempera Ground. (For other egg tempera painters: the surface is marble-like and, in my experience, unmatched.)
One painting that has served as my guide for the verdaccio layer—especially because it can be examined in such extraordinary detail—is Domenico Ghirlandaio’s Portrait of a Girl in the National Gallery, London.
The information and knowledge contained in this article represent what was once, 25 years ago, a challenging and formidable task for me: simply discerning how to execute a true verdaccio layer as outlined by Cennino Cennini and evidenced in subsequent Quattrocento examples.
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Thanks for sharing this article, George. It arrives just as I was contemplating how to begin the verdaccio layer on a portrait study over the Rublev Egg Tempera Ground. (For other egg tempera painters: the surface is marble-like and, in my experience, unmatched.)
One painting that has served as my guide for the verdaccio layer—especially because it can be examined in such extraordinary detail—is Domenico Ghirlandaio’s Portrait of a Girl in the National Gallery, London.
https://www.nationalgallery.org.uk/paintings/workshop-of-domenico-ghirlandaio-portrait-of-a-girl
The information and knowledge contained in this article represent what was once, 25 years ago, a challenging and formidable task for me: simply discerning how to execute a true verdaccio layer as outlined by Cennino Cennini and evidenced in subsequent Quattrocento examples.
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