This artistic technique employs lines that follow the form of the subject matter, delineating its three-dimensional nature on a two-dimensional surface. These lines, unlike outlines, traverse the subject’s surface, illustrating its curves and undulations. For example, in depicting a sphere, the lines would arc around the form, demonstrating its roundness and volume instead of simply tracing its perimeter.
The advantage of this method lies in its capacity to convey depth and volume effectively. By mapping the subject’s surface, it enhances the illusion of three-dimensionality. The practice aids in developing a deeper understanding of form and spatial relationships, enabling artists to render subjects with greater accuracy and expressiveness. Historically, artists have utilized this technique to study and depict complex forms, playing a crucial role in anatomical studies and realistic representations.