On the philosophy of painting: a theoretical and practical treatise.. (1849)
Twining, Henry · London, Longman, Brown, Green, and Longmans · leaf 483
ary, in drawinga three-quarter view of a figure placed before a mirror,to mark the situation of the point of sight, and to makesuch perspective arrangements as will show that thethree-quarter view of the head is owing to the sidewardposition of the observer, and not to its being partlyturned round… … The figure looks in a direction which is nearly parallel with the mirror,but is seen by the observer from a diagonal position. REFLECTION TN PLANE MIRRORS. 4.S3 him, the reflected image would be turned round in thecontrary direction, showing partly the back of the headand shoulders ; as is seen in…
Painting · Aesthetics · Perspective
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