The benefits of clear surface shading in a design patent were highlighted in a recent district circuit decision, which found that purported contour or tangent edge lines added to the drawings to ...

contour drawing - shows outlines, shapes and edges but not fine detail, texture, tone or colour cross contour drawing - uses lines drawn across surfaces to suggest their depth and form tonal study - ...

Drawing depends first on really seeing what’s in front of you, contour drawing can help train your hand to follow your eyes. By Diane Olivier Over the years, people develop a manner of “seeing” that ...