This indicates that the position of the light source and the arrangement of shadows is very important. Professional photographers often wait for hours for the sun to reach the right position before taking a shot of some architectural views. Much patience is needed to determine shadows in very good drawings. This mistake can be avoided through exact reproduction of the scene or, if necessary, by verifying the correct geographical references (points of the compass). One common error is to draw the sun shining from the north or to provide northerly views with deep shadows. Later additions to a drawing should also be avoided under no circumstances should large shadows be added afterward to "improve" clarity. It can be awkward if persons viewing the picture get the feeling that you are using shadow to conceal weaknesses or design defects or to attract particular attention to yourself.
Shadows cast by the sun or artificial light can be added to the drawing for extra three-dimensional impression, but beware of too many contrasting effects. Figure 10.6ġ0.1.6 Shadow Cast by Sun or Artificial Light
Deviations in standpoint or sight-line will immediately falsify the illustrationĭimensions and spaces in the drawn parts should be checked now and again for correct proportions. Similarly, the eyes must always follow the same sightline. Parts that lie parallel to the drawing and picture plane in central perspective appear bigger.Īnother point, though obvious, is worth mentioning: your drawing standpoint must never vary while you prepare your freehand drawing, i.e., there must be no change in standing or sitting position. If you are still uncertain about judging foreshortened lengths, we suggest that you plot and measure the various parts of the apparent image with outstretched arm. Lengths and widths are almost always far too large, especially in the work of beginners Take a look at the side wall of your room from where you are now standing or sitting and see just how wide the doors appear in the wall along which you are looking: they actually are very narrow but are frequently drawn far too wide.Īnd so it is with many other things which are foreshortened by perspective. We should stress here that the utmost care and attention should be devoted to receding lengths. We now draw in the spatial dimension, the step and grid for scraping off muddy shoes Once all vanishing lines have been inserted it will be possible to outline the entire canopy on the strength of these new reference points and the estimated length and height of the canopy, which vanishes to the main point.
The next step is to indicate the vanishing lines to the main point. Drawing the first vanishing lines 1 A I 10.1.5 Vanishing Lines
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