Tutoriaux > Dessin traditionnel
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Portrait Sketching in CharcoalAuteur : G.BannsCatégorie : Dessin traditionnel Tutorial posté le 23 juil. 2006 à 09:08 |
Originally written Jan 2004
Copyright: G.Banns
Like the previous Drawing People - female figure in charcoal, this free art lesson
on sketching faces again uses charcoal and a brush, though this time the water is added to charcoal particles, a
red earth-like pastel is used, and the paper is prepared before use.
The walrus moustache and hair of this 19th century philosopher, make it an ideal subject for the medium using a more coarse,
hog's hair brush to render the textures in a rapid manner. Following paper preparation the sketch took about half
an hour to complete.
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Paper
is completely a personal choice. I used a 40 cm by 30 cm sheet of thick watercolour paper,
but acrylic gesso has a tendency to warp even tough paper, and so before I began I filled up
the bath tub and let the sheet soak for five minutes. Next, I turned the sheet over and
gave it another five minutes or so before pulling it out of the tub, giving it a quick
and gentle wipe with a towel, and laying it down onto a rigid sheet of MDF board (use whatever
you like - Masonite, foamboard - any rigid support should do). Working quickly I taped the
four edges of the paper with masking tape, adding extra tape across the corners as there
is a danger that when the paper dries, it will break free of the tape.
Having pre-soaked the paper in this manner, I felt fairly confident that when I came to
add the gesso, the paper would remain unbuckled.
A quick word about acrylic gesso for those who do not know about this paint.
There are many brands available, you need only pop down to your local art shop, or order online.
For those new to art, art shops can be a little intimidating with so many unknown products
on the shelves. I recall my first visit to an art supply chain, and as I wandered amongst
the alien shelves, filled with so many unknowns, I could sense the eyes of artists aware of
my inexperience as I awaited the cries and jeers of, 'he's not a real artist. Intruder!
- throw him out!!'
I had vaguely heard about odourless turpentine, and so approached the shop assistant and asked
if they had any. She mouthed the word back to me "odourless?" as though I had tried to order
an Indian take-away, and I recall thinking, oh god I've just asked for a fictional product! She
had not heard of the product, and so asked the shop manager.
I stood there contemplating whether to make a run for it and never showing my face in
their establishment again, however, before the flight response kicked in, the manager looked at me,
and said, 'yes we have some on the shelf over here'! I picked up a bottle, handed it to the
shop assistant, smiled, possibly with just a faint trace of smugness, for I was now an expert in art
materials!
Anyway, back to gesso!!... The paint is fairly inexpensive, and used extensively by oil painters
in preparation of their canvases (if oil paint comes in contact with canvas, wood or paper,
the surface will eventually rot). I decided to use acrylic gesso, in part to add more tooth
and texture to the paper, and also that I might tint the colour with a little added yellow ochre
acrylic paint.
You can see from the photograph below, that I used a cheap paper plate to mix the yellow ochre
acrylic and gesso together.
The brush I use is a cheap all-purpose one, with fairly sturdy bristles which added 'tooth' (charcoal
adheres more easily to a rougher surface).
Please note, that if using acrylic gesso (or any acrylic paint) you must wash your brush promptly
after use. Failure to do so will result in the paint drying solidly on your brush, which
you can then pretty much kiss goodbye.
Applying Gesso to PaperHere I apply the gesso to the paper with a crisscross motion of the hand until it is covered up to the edges of the masking tape. |
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Toning the PaperHaving ground the red pastel and charcoal into dust, I decided to use the same large bristle brush I used to apply the gesso, to spread the dust particles around. Although it may vaguely look like I know what I am doing, it is all rather haphazard, and my only real forethought and intention at this moment, is to roughly place the red dust within the general area of the face.
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The BrushJust a quick mention of the brush I use for the majority of the following work. It is a oil painting bristle brush, bought from "The Works" bookshop, and made by Crimson and Blake. It is possibly the cheapest brush you can buy, but the hairs seem to stay fixed (although the handle shed its thin veneer of paint within a day!), and it lends itself ideally to any messy charcoal particles and creating the sketchy textures that make up the shading of the face and hair. |
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Guidelines
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The Initial Block-inI keep a jar of water beside me and periodically wet, or lightly moisten my brush. Doing so allows me to partially control the darkness of the charcoal. If the brush hairs are just slightly moist, they lend themselves to producing interesting textured lines, something that would take much longer to reproduce without the aid of a brush. Although I build up the tones within a few layers, I try to place each stroke with a degree of accuracy. The worst thing you can do is overwork an area (sometimes called 'licking'). Quite a few of my strokes are 'feelers': the brush does not actual make contact with the paper, but by imagining the stroke (in a similar way that a snooker player visualises potting the next ball), I stand a better chance of placing it in the desired place. I typically adopt a different approach to each sketch or painting I undertake. In the case of this portrait I liked the spontaneity of working on all areas at once, letting the unconscious mind roam free of the analytical. My intention from the outset is to give the portrait's eyes a little more attention and depth from the rest of the drawing, so that by the end, they subtly draw the viewers attention. |
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Block-in, First Stage
I use a combination of brush and vine charcoal to mark in the area of the eyes. You will notice that the edges are fairly hard and crude, but at this stage I am just trying to establish the general positioning. A great tip to learn is that good drawings/paintings have very few 'hard' edges, and many soft. By 'hard', I mean having a crisp, and distinct edge which the viewer's eyes will be immediately drawn towards. To loose some of this hardness, a few light strokes of the brush, or a little rubbing from a finger can soften and blend, though I don't recommend over doing it. Once I darkened the eyes, they inevitable stole the attention, and so I quickly established some more darkened areas around the face in an attempt to balance the sketch. |
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Hightlights Through ErasingThis is where the small piece of t-shirt comes in handy. Wetting a piece of the material in my jar of water, I was glad to find that the red pastel could be removed without too much of a fight. I would imagine that the gesso underlayer helped in this respect. Although areas of light and dark are easy enough to see in my small reference photo, squinting your eyes to see tone is an invaluable aid to visualising values. |
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Block-in, Second StageIn this stage, I'm simply interested in increasing the tonal range, by establishing some darker areas. |
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Block-in Third StageOn the third iteration, I try the conte pencil to add depth to the eyes, but then decide to switch to the vine charcoal. Again the eyes are still at a fairly crude stage with a number of unwanted hard edges. I balance these hard edges by drawing in several more across all areas of the face, with the intention of going darker still in the finishing stages so these edges are not so prominent. |
In this stage, I'm simply interested in increasing the tonal range, by establishing some darker areas.
ConclusionsThis is the second charcoal portrait I have attempted almost predominantly with a brush, and I've found this method of approach not only so much cleaner on the hands, but the juicier thickness, and texture of strokes allows for rapid sketchwork and fine parallel lines that would be far more difficult and time consuming to attempt any other way. There's some guess work in how wet to soak your brush before dipping it into the charcoal powder, but such guesstimations resolve themselves after a few strokes. When the brush dries the tone lightens, and you can create some interesting dry brush techniques. I believe the same techniques applied to a more time consuming drawing, could yield in some excellent results - I hope to try it soon, and I hope I've inspired a few of you just enough to try your hand with these methods. A brush in your hand may feel very foreign and can be the difference between using chopsticks and a knife and fork. Some people will pick it up quicker than others, but with a little practice, anybody can easily wield a brush. |
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