Drawing & Sketching
Free Drawing and Sketching Lessons
"THE PRACTICE & SCIENCE OF DRAWING"
Author: HAROLD SPEED
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Variety in Quality and Texture
Variety in quality and nature is almost too subtle to write about with any prospect of being understood. The play of different qualities and textures in the masses that go to form a picture must be appreciated at first hand, and little can be written about it. Oil paint is capable of almost unlimited variety in this way. But it is better to leave the study of such qualities until you have mastered the medium in its more simple aspects.
The particular tone music of which we were speaking is not helped by any great use of this variety. A oneness of quality throughout the work is best suited to exhibit it. Masters of tone, like Whistler, preserve this oneness of quality very carefully in their work, relying chiefly on the grain of a rough canvas to give the necessary variety and prevent a deadness in the quality of the tones.
But when more force and brilliancy are wanted, some use of your paint in a crumbling, broken manner is necessary, as it catches more light, thus increasing the force of the impression. Claude Monet and his followers in their search for brilliancy used this quality throughout many of their paintings, with new and striking results. But it is at the sacrifice of many beautiful qualities of form, as this roughness of surface does not lend itself readily to any finesse of modelling. In the case of Claude Monet's work, however, this does not matter, as form with all its subtleties is not a thing he made any attempt at exploiting.
Nature is sufficiently vast for beautiful work to be done in separate departments of vision, although one cannot place such work on the same plane with successful pictures of wider scope. And the particular visual beauty of sparkling light and atmosphere, of which he was one of the first to make a separate study, could hardly exist in a work that aimed also at the significance of beautiful form, the appeal of form, as was explained in an earlier chapter, not being entirely due to a visual but to a mental perception, into which the sense of touch enters by association. The scintillation and glitter of light destroys this touch idea, which is better preserved in quieter lightings.
There is another point in connection with the use of thick paint, that I don't think is sufficiently well known, and that is, its greater readiness to be discoloured by the oil in its composition coming to the surface. Fifteen years ago I did what it would be advisable for every student to do as soon as possible, namely, make a chart of the colours he is likely to use. Get a good white canvas, and set upon it in columns the different colours, very much as you would do on your palette, writing the names in ink beside them.
Then take a palette-knife, an ivory one by preference, and drag it from the individual masses of paint so as to get a gradation of different thicknesses, from the thinnest possible layer where your knife ends to the thick mass where it was squeezed out of the tube. It is also advisable to have previously ruled some pencil lines with a hard point down the canvas in such a manner that the strips of paint will cross the lines. This chart will be of the greatest value to you in noting the effect of time on paint. To make it more complete, the colours of several makers should be put down, and at any rate the whites of several different makes should be on it. As white enters so largely into your painting it is highly necessary to use one that does not change.
The two things that I have noticed are that the thin ends of the strips of white have invariably kept whiter than the thick end, and that all the paints have become a little more transparent with time. The pencil lines here come in useful, as they can be seen through the thinner portion, and show to what extent this transparency has occurred. But the point I wish to emphasise is that at the thick end the larger body of oil in the paint, which always comes to the surface as it dries, has darkened and yellowed the surface greatly; while the small amount of oil at the thin end has not darkened it to any extent.
Claude Monet evidently knew this, and got over the difficulty by painting on an absorbent canvas, which sucks the surplus oil out from below and thus prevents its coming to the surface and discolouring the work in time. When this thick manner of painting is adopted, an absorbent canvas should always be used. It also has the advantage of giving a dull dry surface of more brilliancy than a shiny one.
Although not so much as with painting, varieties of texture enter into drawings done with any of the mediums that lend themselves to mass drawing; charcoal, conté crayon, lithographic chalk, and even red chalk and lead pencil are capable of giving a variety of textures, governed largely by the surface of the paper used. But this is more the province of painting than of drawing proper, and charcoal, which is more painting than drawing, is the only medium in which it can be used with much effect.
There is a very beautiful rhythmic quality in the play from softness to sharpness on the edges of masses. A monotonous sharpness of edge is hard, stern, and unsympathetic. This is a useful quality at times, particularly in decorative work, where the more intimate sympathetic qualities are not so much wanted, and where the harder forms go better with the architectural surroundings of which your painted decoration should form a part. On the other hand, a monotonous softness of edge is very weak and feeble-looking, and too entirely lacking in power to be desirable. If you find any successful work done with this quality of edge unrelieved by any sharpnesses, it will depend on colour, and not form, for any qualities it may possess.
Some amount of softness makes for charm, and is extremely popular: "I do like that because it's so nice and soft" is a regular show-day remark in the studio, and is always meant as a great compliment, but is seldom taken as such by the suffering painter. But a balance of these two qualities playing about your contours produces the most delightful results, and the artist is always on the look out for such variations. He seldom lets a sharpness of edge run far without losing it occasionally. It may be necessary for the hang of the composition that some leading edges should be much insisted on. But even here a monotonous sharpness is too dead a thing, and although a firmness of run will be allowed to be felt, subtle variations will be introduced to prevent deadness. The Venetians from Giorgione's time were great masters of this music of edges. The structure of lines surrounding the masses on which their compositions are built were fused in the most mysterious and delightful way. But although melting into the surrounding mass, they are always firm and never soft and feeble. Study the edge in such a good example of the Venetian manner as the "Bacchus and Ariadne" at the National Gallery, and note where they are hard and where lost.