The superimposition of distinct materials or elements upon one another constitutes a fundamental aspect of artistic creation. This technique involves applying successive coats of paint, collage elements, or digital manipulations to build depth, texture, and complexity within a composition. For example, a painter might begin with a foundational wash of color, then gradually introduce details and highlights in subsequent applications to achieve a desired level of realism or abstraction. A digital artist might stack several images with varying blend modes to produce an intricate final image.
The strategic application of these strata enhances visual interest, contributes to the narrative, and enables artists to convey nuanced meaning. Historically, this approach has been employed across diverse artistic movements, from the meticulous glazing techniques of Renaissance masters to the impasto surfaces characteristic of Impressionist painting. The process not only facilitates the development of rich visual surfaces but also allows for revisions and the incorporation of multiple perspectives within a single artwork. It is useful for conveying sense of history or even a sense of chaos, depending on the purpose of the artwork.