What is the function of grounds in painting?

Grounds in painting serve primarily as a surface preparation layer applied to a support, such as a canvas or panel, before the artist begins their work. This layer creates a suitable surface for paint application, influencing the paint's adhesion and appearance. Different types of grounds can affect how the colors of the paint are perceived and can alter the texture on which the paint is applied.

For instance, a well-prepared ground can prevent the absorption of the paint into the support, helping to maintain the vibrancy and richness of the colors. Various types of grounds, such as gesso, provide different finishes and textures, which can further enhance the overall artistic effect. Therefore, understanding the role of grounds is essential for artists, as it directly impacts the longevity and effectiveness of their work.