Wyllie, W. L. (William Lionel), 1851-1931 · London, E. Arnold · leaf 16
. If the object throwing theshadow be not upright, or overhang, like theburden on the ass, you have only to drop uprightlines from the corners, and cut their shadows tothe proper length by rays of the sun. These ravs are a good example of parallel linesvanishing or appearing to vanish. For so… … On some days, if you turn your back to thesun, you may see the rays vanishing away towardsthe shadow of your head on the ground, as on theright-hand side of this example. These rays maybe used to cut the shadows to the proper length,just as in the previous instance. I want you tonotice that the…
Drawing · Perspective
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
