What shading with lines going more than one direction?

Shading with lines going in more than one direction is known as cross-hatching. This technique involves layering intersecting lines to create varying degrees of darkness and texture, allowing for more complex shading effects. By adjusting the density and angle of the lines, artists can depict shadows, depth, and form in their drawings. Cross-hatching is commonly used in ink sketches, illustrations, and detailed artwork.