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Bildflache."]
5
24.
A METHOD OF DRAWING AN OBJECT IN RELIEF AT NIGHT.
Place a sheet of not too transparent paper between the relievo and
the light and you can draw thus very well.
[Footnote: Bodies thus illuminated will show on the surface of the
paper how the copyist has to distribute light and shade.]
5
25.
If you want to represent a figure on a wall, the wall being
foreshortened, while the figure is to appear in its proper form, and
as standing free from the wall, you must proceed thus: have a thin
plate of iron and make a small hole in the centre; this hole must be
round. Set a light close to it in such a position as that it shines
through the central hole, then place any object or figure you please
so close to the wall that it touches it and draw the outline of the
shadow on the wall; then fill in the shade and add the lights; place
the person who is to see it so that he looks through that same hole
where at first the light was; and you will never be able to persuade
yourself that the image is not detached from the wall.
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