Shades and shadows, with applications to architectural details, and exercises in drawing them with the brush and pen .. (1912)
Ware, William R. (William Robert), 1832-1915 · Scranton, International Textbook Company · leaf 28
are points inits Line and Shade, and the points on the corresponding slices of the large sphere are points of the requiredLine of Shadow. These lines are then transferred from the elevation to the plan. Fig. R 4 shows the same two spheres, with the light falling parallel to the vertical plane of…
Shades and shadows
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