Essentials of Perspective: With Illustrations Drawn by the Author (1887)
Miller, Leslie William, 1848-1931 · New York: C. Scribner's Sons · leaf 90
is easiest to find its vanishing- 80 ESSENTIALS OF PERSPECTIVE. point, even if this surface has to he partly an imaginary one. Fig. 103 shows how such a shadow is fol-lowed when the object casting it has to be lengthened in imagination in order to enable us to determine itsdirection. If we looked… … \f u*r I Fig. 105. Fig. 106. Fig. 107. Fig. 108. shadow, as it is called, though it becomes visible on the dust or mist that sometimes fills the room or thestreet; and it is the intersection of this plane of shadow with some other surface that foims the visibleshadow. This plane of invisible shadow…
Perspective · Drawing -- Study and teaching
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