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An example of the cylinder shaded by lines. The area without lines are where the light hit the cylinder. The line become darker when it is away from the light source.

Cylinder Line Shading

An example of the cylinder shaded by lines. The area without lines are where the light hit the cylinder.…

"A row of cylinders of different sizes. The effect of polish is given by leaving several brilliant lines, as might occur if light came in through several windows." —French, 1911

Series of Cylinder Line Shading

"A row of cylinders of different sizes. The effect of polish is given by leaving several brilliant lines,…