Freehand perspective and sketching; principles and methods of expression in the pictorial representation of common objects, interiors, buildings and landscapes (1916)
Norton, Dora Miriam · Brooklyn : The author · leaf 171
e ground in the direction of VPS, and that itcan extend no farther than its meeting with the ray of light, HI.Shadows from a Lamp. — The radiating rays from an artificiallight can all be contained in an infinite number of radiating ver-tical planes through the light itself. Some of these… … the sun. Thus inthe shadow of thestool the light-rayfrom O throughD gives d wherecut by a line onthe ground di-rectly under it^^- ~^^ (from 0 through E). The shadow of Gh falls on the floor in the direction ofo-H till it reaches the wall. On the vertical wall, the shadowof the vertical GrH is also…
Drawing · Perspective
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