They describe a form inside and out.
If you just pay attention to the outside edges of a form it looks flat like the surface it is
drawn on. Making it look like a flat paper, cut-out form. By following the contours or
edges of a form as well as throughout a form, you can begin to describe volume. 3-D
Contour Lines are not just outlines! For contour line drawing, concentrate and draw all of the lines you see.
Don’t forget the little details and any patterns you see.
Don’t forget the little details and any patterns you see.
Henri Matisse studied portraiture and still-life creating contour line drawings.