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Karin, In researching glazing recipes this am I came upon a thread by an artist we know, referring to different techniques of grisaille and verdaccio. He is responding to another artist who asked if he could use a particular color recipe described below. I thought you would find this interesting.
Renee
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What is verdaccio?
Rafaelle wrote: We are looking to produce a monochromatic underpainting. We need value differences in our painting to achieve an illusion of the form/object in our painting. With value being the lightness/darkness of our colour, well it stands to reason that we need to be able to achieve this form by either the lightening or darkening of the colour. If I look at producing a grayscale or Grisaille, I am using Black and White. White is lightening, Black is darkening, of course depending on what end of the scale you begin. So what is the base colour of the verdaccio? Michael describes Black and COG. He lightens with White and darkens with Black, producing a range of values, by removing or adding light. The mixture itself is a grayish green.
Now you have proposed Black, YO, and PG. Let
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