Employed in layers is used extensively in oil painting for paintings that need several session. For a painting that develops over several days, allowing for the oil paint to dry getting a given layer, it is beneficial to assist explicit painting layers. The first layer may be a ground, usually applied all over the surface. Then an under drawing in outline may follow. All of these layers will affect the appearance from the final painting techniques. To comprehend the role of under painting, it's possible to use metaphor and think of the under painting as a base-rhythm in music, and also the over painting being a solo played over this. Areas not under painted, outlining the room for a figure for example, is considered reserved.
History
Doing work in layers has been utilized by many schools of art over hundreds of years, even though overall trend in Western art since the Dark ages continues to be towards a simplified and quicker technique. For instance, in early 15th century Cennino D’Andrea Cennini describes how to oil paint in layers inside the egg tempera medium. In comparison, his directions for painting in fresco, completed in one session on damp plaster, provide a different system although even here, there is certainly some layering employed. The important distinction is that in fresco, a second layer of paint will physically blend with the first, whereas in egg tempera, which dries rapidly, an additional layer will cover and optically blend with the first layers. When a new layer is included with a still-wet earlier layer, this is known as wet-in-wet painting. A substantial alternation in a brief history of western painting happened the path of the Renaissance if the white grounds of earlier painting were replaced by dark ones, and darker under painting.
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