More Musings on Memory

July 27, 2009

Two important events occurred in mid-nineteenth century France: Louis Daguerre’s patent application to the French Academy of Sciences for his Daguerreotype and Horace Lecoq de Boisbaudran’s publication of a systematic way for the artist to develop visual memory. The former was destined to radically change the way humans communicate, while the latter would eventually become relegated to the now old fashioned practice of perceiving, conceiving and rendering external reality in terms of three dimensional forms. Additionally, the former could (after the additional technological advancements of more than a century) be used by anyone to communicate anything, while the latter took years of practice to master (by fewer and fewer artists). In Lecoq’s time, one could imagine him to be deeply aware of how the early stirrings of photography might impact both the world – and the artist. But also, the world of his time was still deeply embedded in Western Civilization’s long tradition of the representation of classical forms of beauty. If we fast forward more than one hundred and fifty years, we can see a remarkably different art world functioning now and understand why he has hardly been heard of. Still, back in the day, his methods had a strong influence on Fantin-Latour, Legros, Rodin, Lepère, Lhermitte, George Innes and James MacNeill Whistler, among others.

One additional factor – which also occurred in France around that same time period – could have been nail in Lecoq’s memorial coffin. One year after the 1862 publication of Lecoq’s revised edition of L’Education de la mémoire pittoresque was the famous 1863 Salon des Refusés. Art history books mark this as the beginnings of the Impressionistic movement. It’s readily acknowledged then that the advent of photography provided the impetus for Impressionism and the further deconstruction of the realistic picture space: Neo-Impressionism, Post-Impressionism, Fauvism, Cubism, Surrealism, Da-Da, Expressionism, Pop-Art, Hard-Edge, Color Field, Minimalism, Symbolism, etc… . As they all continued to move away from a form oriented, realistic rendering of external reality they moved towards an abstract vision of an inner, subjective reality. This inner subjective experience of consciousness (on whatever level) then became objectified using whatever tools might be available to the artist – or to which they were attracted. Such expressions then need not have any relation to the external “objective” world rather, if successful, these expressions somehow depicted a universality (that is not subject to the subject-object dichotomy of both science and even language itself). So I wouldn’t  argue against any of these developments, as a young artist I was exposed to them all and truly appreciated most. Yet also as an artist I do question what has been lost in the interim. For example, my own artistic education included very little formal training, that is, training in the rendering of form and the use of the traditional materials to do so. So I’ve really had to teach myself.

At this point, and as a very generalised statement of the current artistic world, I humbly submit that by losing touch with the various tools and techniques which artists have used for centuries to render personally significant reactions to the external world in and around themselves, humanity has lost an essential relationship. An essential mirror. I certainly do not argue against abstraction, and conversely, I do not argue for realism. Both languages can be exceptionally powerful or exceptionally vapid, depending upon their practitioner/spokesperson. I’m just arguing for integration. The physical absorbed into the metaphysical; the metaphysical rendered meaningful through the physical. The Heart Sutra of Mahayana Buddhism expresses it this way: Form is Emptiness and Emptiness is Form.

In 1848 the art teacher Horace Lecoq de Boisbaudran wrote a treatise called L’Education de la mémoire pittoresque for his students. That treatise was revised and republished in 1862. Later, he wrote two other small texts for his students which were published in 1876 and 1879, respectively. Many notable 19th century artists passed through his atelier: Fantin-Latour, Legros, Rodin, Lepère, Lhermitte among others. Subsequently through Legros, many other artists, like George Innes and James MacNeill Whistler were influenced by his ideas.

Although the mainstream current of twentieth century art has moved away from form inspired realistic interpretations of the world around us, the role of personally significant memory has never been greater. It is with that in mind that I have finally located, downloaded and printed out this text. The translation, which was done approximately one hundred years ago, appears to be a fine one, well researched among the still extant students of LeCoq at that time.

I’m posting this link as information for anyone else who may be interested in exploring Lecoq’s work. The Training of the Memory in Art and the Education of the Artist, Translated by L. D. Luard. Et l’original en français: L’éducation de la mémoire pittoresque, de Horace Lecoq de Boisbaudran. Yesterday, for 14 Euros and an hour of my time, I located the link, downloaded the file, burned a CD, took it to a local print shop, for the which I received a simple, black and white, plastic coated, spiral bound edition. I now have a copy of a book that I have searched twenty years for. Hooray for the internet!!!

After years of experimentation and study, I have come to a technique that at least allows for the possibility of fine painting, in my case landscapes. I’ll try to describe it briefly here below using illustrations from a current project, the Sint Anna Kerk here in Brughes. The value study is completed “en plen air”; the studio work is done in the atelier in successive stages, each oil session is completed “alla prima” (within a few hours). The intent is to capture as much spontneity as possible, within the long time frame that defines an indirect technique.

Sint Anna Kerk value study The start is a value study describing mid-afternoon light. It’s usually a simplified version of where I hope to finally go. I consider it invaluable for setting up both the composition and tonality of the final piece. This study here is done with pencil, white chalk and ink on standard charcoal paper. Highlights and shadows are developed to render a simple direct statement. Any addition information needed can be augmented from photographs and direct observation, since I live around the corner, though I try more and more to rely on my own pictorial memory.

Sint AnnaKerk silverpoint with india inkThe main elements of the composition are transposed to a panel using line, texture, shading and form. Traditionally, fine drawing pens loaded with india ink are used for transferring the linear, graphical part of the drawing but I have recently been experimenting with using a silverpoint stylus for my underdrawing. The final result is softer, warmer and subtler than india ink (see the grey tones). However, that descriptive subtlety is often lost in the intervening layers of paint, thus, I have begun augmenting the silver point with india ink in order to accentuate the contrasts of the foreground. Thus, distance is described from the beginning in a few ways. The decisions made now guide many aspects of the final result, so it is important to be sure and thus avoid pentimento.

Sint Anna Kerk Egg Tempera In order to minimize the amount of oil needed to achieve layers of color, I use a traditional egg tempera technique to begin the painting. Oil can be painted over egg (fat over lean), however egg cannot be painted over oil. In addition, egg tempera must be painted on a hard, firm surface, otherwise it will crack, thus the panel is prepared with a traditional gesso surface.

I use the egg tempera technique to indicate basic broad areas of local color. All objects at this point are better stated as pastel suggestions rather than full strong colors. In this version of the Sint Anna Kerk, I have been careful to keep my colors light in order to avoid an oversaturated painting in the middle and background areas. I have learned (the hard way) that control of hue, saturation and value are critical for describing distance. The vibrations of complimentary colors are hinted at but not yet fully explored. Also, I try to use single pigments only for spectral purity; no color mixing is done on the pallette. Colors (like certain greens and oranges) that might require mixing are indicated through separate layers of translucent paint. This layer will be dry to the touch almost immediately, but it should dry at least one week before attempting to work in oil.

SintAnnaKerk_IMP_web_aa Although it may seem like a sin to cover the fine egg tempera painting with a blanket of brown, the imprimatura quickly helps to establish the overall key of the piece as well as to unify any disparate elements. The previous egg tempera layer must be not only completely dried but sealed with a layer of glue size to protect it from the succeeding layers of oil based paints. The lines and colors of the previous layers continue to shine through, adding texture and interest, particularly in the mid tones and shadows. The imprimatura is a mixture of damar varnish, turpentine, and brown pigment (in this case, burnt umber). I brush it on, wait a minute or so and then wipe it off with a dry, lint free, soft clean cloth.

Since I was very interested to retain the purity of the whites in the highlight areas of the picture, I went back into the fresh imprimatura with a brush dipped in fresh turpentine to remove the brown tint from the highlight areas. My theory/concept is that even though I will be painting over these areas in white oil paint to create mass and to soften edges, whatever is underneath ultimately does matter. If I want to somehow simulate the intensity of pure light – even if it is reflective and not transmissive – then the purity of the original gessoed board is important. I let the imprimatura then dry a day or so, and begin painting in the Mixed Technique.

SintAnnaKerk_MT1_web_aa I squeeze a quantity of cadmium yellow onto the pallette and dip a thin, wide bristle brush into the clear medium (1 part Damar, 1 part Stand Oil, 1 part Turps), then scumble in a very thin coat of yellow over the whole surfce. It sets for a minute or so and then I wipe it back off with a soft, lint free cloth. The idea is to leave some translucent color tint with some tack and work the first levels of oil back into it. Because it’s a panel and not canvas, the tackiness of the oil/varnish medium catches the brush stroke well, functioning like the weave of a canvas in attracting the brushstroke yet leaving no trace of a fabric-like texture.

At this stage, I work with two basic colors, yellow and gray. I mix up a gray to match the same value of the pure cadmium yellow medium, in order to set the overall darkest value. I then mix up a series of tints (5 or 6 steps) from both the gray and the yellow to white. I begin painting in large areas trying to quickly cover the whole painting with one of these tints, using a thick bristle brush and an emulsion for the pigments (1 methyl cellulose glue, .5 oil/.5 varnish, 1 water) which hastens the drying time. The drawing and egg tempera levels have already set the stage, so to speak, and function not only as guides but also as mirror like reflections. It takes only a few strokes to bring out a form. I use a fan shaped dry brush to merge forms together.

It’s fine to be working with a limited palette now, thinking ahead by laying in a more saturated yellow for both the greens and the oranges. I use the gray for neutral tonalities, shadow and to suggest distance. The overall contrast is quite low.

SintAnnaKerk_MT2_web_aa I squeeze a small amount of a cool, translucent red pigment out onto a pallette board. In this case I use crimson lake, in the past I have used alizarin crimson. Dipping a wide, flat bristle brush into clear medium (1T,1D,1SO) and then into the pigment, I proceed to scumble a thin layer of translucent red over the entire piece. After a minute or so, I wipe this off with a clean soft cloth, taking off as much pigmented medium as possible. The remaining surface has a slight tack to the touch.

I mix up three colors this time. Red, in a series of tints up to white. Warm gray mixed in a series of tints up to white and yellow, mixed in the same way. (The value of the pure red is the same value as the pure warm gray, both being close to a pure medium gray value.) Using a big bristle brush and emulsion, I work quickly to re-establish all the values and colors of the intended piece. Occassionally I need to mix a color that requires a combination of two of the premixed tints.

But look, some strong greens are emerging although I haven’t used any green or blue pigment yet! It’s only yellow refracting back through levels of drawing, egg tempera, imprimatura and glaze. Because I use an emulsion (1 methyl cellulose glue, .5 oil/.5 varnish, 1 water) as my painting medium, the work dries quickly, the colors maintain a level of transparency, and the layers of paint are rather lean.

SintAnnaKerk_MT3_web_aa This is the blue level. I premix my intended colors: yellow in a series of 5-6 tints up to white, red, blue and Payne’s gray all mixed in the same way. There are about 20 little blobs of paint, which I may or may not use but I want to be able to work quickly and precisely in my choices.

I squeeze out a small amount of pure cyan (Thalo Blue) and dip my brush in clear medium (1T, 1V, 1 SO). Cyan is a highly saturated pigment with strong tinting power so a little goes a long way. I scumble it on and after a few moments wipe it back off, leaving a slightly tacky surface that has still more blue in it than I would actually prefer. I remind myself to use Ultramarine Blue next time…

I begin to reclaim the highlights and quarter tones, working with a big brush for starters. Any color I paint now picks up a bit of blue from the glaze. Hmmm…that’s good and it unifies the painting, but is there too much blue? A lot of unexpected colors start to happen. OK, let them emerge. I need to reintroduce the main color contrasts, like the orange for the clay tile roof, the brown bricks and the green vegetation. After the main value and hue statements are set, a few details are reintroduced with a smaller brush to help refine those shapes: window and trim, shadows and highlights. After a few hours, I’ve covered the panel. But is it done?

SintAnnaKerk_final_aaAfter the blue session, all the color statements have been made and I’m happy, sort of, but there remains a bluish tint to the whole piece. I could leave it that way, but the intended gray of the church steeple and road pavement encourage me to attempt some gray balance adjustment. So, I cover the entire piece with a clear glaze of medium and wipe it back off (as usual). I mix up a series of tints using Payne’s gray this time as it is both darker and more neutral than the lighter warm gray pigment I have been using. I squeeze out lead white but mix it 50/50 with titanium white; since the painting is moving into it’s oilier stages. I strengthen the pure whites, the gray steeple and pavement, even scumble some body back into the buildings on the shadow side of the street. I put a glaze of yellow on the buildings on the left for local color, and add the final highlights to the tree. There is not much to do, but what is done crisps up value contrasts and defines gray balance.

Eh, voila. C’est fini! The cherries on top are the final touches of gold to the church steeple.

Oils

May 26, 2009

Most books advise a beginner to begin with oils as it is more forgiving.  It is easier to correct a mistake for example, than with watercolor.  That may be true – especially if one uses opaque pigments – but oils, by nature of the medium itself, are viscously translucent, thus understanding their innate capacity to transmit light through a clear film is ultimately critical for both succesful manipulations of form without pentimento as well as transmission of light.   Eastlake noted, in referring to Jan Van Eyck, “The leading attribute of the material of oil painting, as distinguished from those of tempera and fresco, viz. its power to transmit light of an internal surface through superimposed substances more or less diaphanous…”.

There are two main approaches to painting in oils, alla prima and indirect.  Although much art is created as a mixture of the two approaches, in themselves they are distinct. The contemporary art world relies quite heavily upon directly percieved and expressed imagery, thus an “alla prima” approach is emphasized. Information on the indirect methods of painting is out of style, so you have to search for it. More and more sites, blogs and forums continue to pop up on the internet. Here is one site I have found that is a fine, yet relatively dis-interested treasure trove. There are others.

Jackson Pollock Abstract Expressionism

Jackson Pollock Abstract Expressionism

Alla prima essentially means executed in one session as exemplified by Jackson Pollock in his drip paintings.  There can be no argument against this method of approach as both its demands and results can be superlative.  After all, if a painting has any chance of reflecting the evanescent truth of the moment, it needs to be created in the same spirit, with a Zen-like accuracy and intensity.

the Mona Lisa

the Mona Lisa

What then are the values or possibilities of a more indirect technique?  Does a laborious technique result in a tedious and heavy painting (it often does!)?  Can a painting developed indirectly still retain the freshness of the moment?  If so, then how?  Thus, for those who feel themselves drawn to an indirect method, the knowledge of ancient techniques is extremely helpful.  Indirect painting simply means developing an image through a series of manipulations over time and calculated to achieve a particular result.  A further refinement of the indirect painting technique is the mixed technique.  Both allow for a methodological layering which in itself creates optical effects of great beauty and luminescence.  Subject matter aside – what can be more eternal than that?

Encaustic

May 26, 2009

Encaustic:

portrait in encaustic

portrait in encaustic

Interestingly, encaustic or hot wax painting, was known to be one of the major creative techniques used by the ancient Greeks.  The Egyptian tomb portraits, which are some of the finest examples of encaustic portrait painting available today, were (according to Ralph Mayer) done by Greeks (not Egyptians).  In recent times Jasper Johns has used the technique with a great deal of success in his series of images of the American flag.  It is a technique that traditionally requires alot of cumbersome tools.  Today the process has been streamlined with simpler tools but for purity, simplicity, and honesty’s sake I will try to describe the technique that I have used.

The Ground:
The Greeks reportedly used encaustic on walls and panels.  A revival of the technique in the 18th/19th century concentrated mostly on mural painting – with reportedly insubstantial results, now 200 years later.  My own experience has been entirely on wooden panels, prepared with traditional chalk gesso (the same treatment that is used for egg tempera).

Tools:
As the medium is melted beeswax, the first tool one needs is a pallette for mixing the colors in a molten state.  Years ago, I went to my local metal junk yard and commissioned a pallette measuring 18″ x 28″ of 1/4″ steel plate welded on four sides by legs 5″  high (also of 1/4″ steel plate).  This pallette then sat on top of a hot plate with an air space of approximately 2″.  At the time, I remember it cost me about $10.  The second tool one needs is a hotplate.  The best are the kind that allow for variable temperature adjustments.  A quick search at the local flea market should offer what you need.

Materials:
The same dry pigments that can be used for egg tempera can be used in encaustic.  Purchase a few blocks of fine beesawax.   Melt some wax and mix it with approximately 20% damar varnish crystals by volume.  Mix this molten fluid together with a similar amount of dry pigment and keep it in a metal cup on the warmed pallette.  Mix up a few colours as needed for the project at hand and keep them warm on the pallette. These days encaustic sticks can be purchased with the resin/oil component already mixed in. Your choice.

encaustic flag by Jasper Johns

encaustic flag by Jasper Johns

Painting:
Molten colors can be applied using bristle brushes or even the pallette knife.  As the paint hardens almost immediately upon contact with the panel, expect a highly textured, immovable result. [My original experiments were done outside in the hot humid summertime, so setting time worked slightly to my advantage.]

Burning In:
Further manipulations can be obtained by heating the panel surface with a heat lamp.  Be careful to keep the surface horizontal to avoid runs. The final “burning in” is also done with a heat lamp close and evenly rotated over the surface to achieve a final fused result.  In this way heavy impasto effects can melt into thin, veil like veneers.

There are some other resources for encaustic.  The University of Delaware’s MITRA forum is an invaluable reference for artists on all things technical. Notebook is another. These days there are many blogs dedicated to the arts and crafts practice of encaustic. They can provide useful tips and tricks but, of course, it’s best to always do your own research by consulting tried and true technical manuals, like Reed Kay’s, The Painters Guide to Studio Methods and Materials. Englewood Cliffs, NJ: Prentice-Hall, Inc., 1983.

Egg Tempera

May 25, 2009

Egg tempera portrait by Botticelli

Egg tempera Medici Portrait by Botticelli

Egg tempera is an time tested technique, especially well loved by panel and icon painters.  It renders flat graphical shapes and fine precise detail quite well.  Softer gradual modulations are possible but take practice and patience.  The unvarnished final work has an almost chalk-like finish to it.  This technique formed the backbone-skill to any medieval or renaissance painter’s tool chest. The twentieth century has witnessed its revival with Andrew Wyeth being perhaps its most famous spokesman.

For anyone wishing to ask experts geeky questions about the medium check out the MITRA forum. In the past there has also been the Society of Tempera Painters (whose informative forum is currently offline). The Tempera Society had a well established site and forum, documenting many aspects of the process as well as related techniques. In its absence, I’d suggest picking up a good book and starting in. The online version of Daniel Thompson’s, The Practice of Tempera Painting is one of the most extensive sources around.  Cennini is charming even if a bit antiquated in his terminology and procedures.  If you are looking for something more general in order to get started, try Ralph Mayer’s “The Artist’s Handbook of Materials and Techniques”, Reed Kay’s “The Painter’s Guide to Studio Methods and Materials”, or “The Materials of the Artist and Their Use in Painting” by Max Doerner.  All are tried and true comprehensive source books for the craft of painting.

Egg tempera is a paint made from an emulsion of oil and water.  The final paint film is not as flexible as oil.  Thus, to avoid cracking, the painting is executed on a firm and stable panel not on a stretched canvas.  At the moment, I use egg tempera primarily as an underpainting.  The links here on the right offer some info – by no means extensive – about how I prepare my gesso and panels.

Pigments:
Be sure to supply yourself with a good collection of dry pigments – avoiding poisonous materials whenever possible.  You don’t want to breathe in toxic dust. By grinding your own paints you get to know the specific characteristics of each pigment – opacity/translucency, saturation, hydrophobic or philic, chromatic nuance. Online suppliers are very helpful if you do not live in a large city with a big art supply store. Get a thick piece of frosted plate glass and a glass muller. Otherwise a pallette knife and wooden painter’s pallette can suffice in a pinch. Grind up a small amount of each pigment you want to use in distilled water, making a smooth paste. The pastes can be stored in plastic film containers for short periods without drying out. To extend that drying out time I usually insert a piece of sponge at the top of the jar. Keeping it moist prolongs the life of the pigment paste.

The Egg:
Locate as fresh an organic an egg as you can. Crack the shell carefully in half without breaking the yolk. Carefully move the yolk between shell halves to isolate the yolk from the white (all the while protecting the egg yolk membrane from puncture).  Let the white albumen drip away. Pass the yolk back and forth between the palms of the hands in order to dry it off.  Roll it across a piece of absorbent paper towel for further drying.  Eventually you should be able to pick up the yolk by it’s sac.  Hold it over a small clean jar (empty jelly jars from hotels are great for this) and pinch the bottom.  The pure yolk will drip out.  Add an equal amount of distillled water, cap, and shake it. Store in the refridgerator.

Tempering the Paint:
On your glass palette add equal amounts of pigment paste and egg yolk. I use a palette knife to measure a “bean” of pigment paste and a small pipette to measure the same by dipping into my prepared egg. Mix until smooth. If you have already ground up your pigments in distilled water, then adding the egg binder now is easier and requires much less grinding. Some pigments will require more yolk, others less. To make sure you have tempered your paint correctly, Take a moistened sable brush, dip it in your newly mixed paint and lay a stroke on a nearby piece of window glass. It should dry quite quickly. Then take a one-sided razor blade and gently scrape the paint swash off. It should maintain its own consistency and curl off like a ribbon. If you have not added enough egg the pigment will return to powder and flake off. If you have added too much egg the paint film will lack chromatic saturation. Let experience be your guide. Soon you will get the knack of it.

When you are satisfied that you have tempered your paint correctly, transfer this mixture to a painting cup. I use a nested set of porcelain dishes that have a top cover. The tempered paint is rather thick, too think for painting, so at this point it is important to add additional water in order to arrive at the right mixture of pigment/yolk. How much water? Apparently, that doesn’t really matter. If your paint has been tempered correctly you can (if you wish) dilute it with large amounts of water so as to paint with many fine watercolor-like washes. As you work, it may seem as though the color is not building, but be patient and you will see that it does.

Painting:
Sable brushes dipped in this watered down paint will be too saturated for the painting stroke. Using your thumb and forefinger press the excess liquid out until the brush renders a clean full stroke without leaving behind a blob of paint at  the end of the motion.

Egg tempera does well with many light thin strokes. Do not immediately rebrush a stroke. Let it dry, then add another level. Because it dries so quickly this is usually not a problem at all. In this way soft transitions can be achieved. But is is important to let your brush dance over your whole painting. Do not obsess in any one area, if it has not thoroughly dried it can become overworked and lift off earlier levels of paint, creating a hole that is difficult to repair. Stay light and playful, attentive to the whole work. Each artist decides how to use this medium to his/her own ends.

Fresco

May 20, 2009

fresco from the Sistine Chapel

fresco from the Sistine Chapel

Historically, fresco was used to decorate large interior spaces – often in churches.  The Sistine Chapel remains as one of humanity’s great treasures executed in this technique.  In the 20th century during the great depression, the WPA sponsored many public works in fresco which yet survive today. Working in fresco is very coarse, simple and elemental. The paint is applied directly upon fresh plaster. The chemical changes that occur as plaster sets lock the pigment into the surface. There is no eraser. Small mistakes may be able to be handled in fresco secco (no guarantee). Larger mistakes simply require a fresh start.

The information here does not come from long, in depth experience, rather this is what I know from a few experiments. If you are serious and interested, I recommed a good book, course, or seminar. Notebook is an informative disinterested site with more information as well as additional links. This site from Sister Lucia Wiley a (deceased) WPA fresco artist is quite informative and helpful.  If you do not have a wall handy on which to experiment, the back side of large tiles from your local tile shop may offer a highly textured surface fully appropriate for your first fresco experiments.

Arrichio:
A wall that is ready for a mural must be of relatively even surface but coarsely textured. It must be solid and not allow moisture to enter from the rear. It is a good idea to wet the entire wall surface with a hose the night before applying the arrichio in order to insure a good bond. The arrichio is a mixture of slaked lime and sand (1 part lime putty to 2-3 parts coarse sand), applied about 1/2″ thick. It can hold the basics of the underpainting. If you are painting on tiles, you can omit this step and go straight to the intonacco.

Sinopia:
The full scale design or drawing can be transferred to the arrichio. The Renaissance Masters seem to have used red sinopa pigment for laying in the basics of the design. It will be covered by a final layer of plaster called the intonocco, so the purpose is to lay in the complete composition to determine relationships in situ, as well as provide a guide for the ‘giornata’.

Intonacco:
This is the final layer of plaster upon which one paints. It is a mixture of slaked lime putty, sand and powdered marble (one part lime putty to two parts fine sand plus 10% marble dust), applied approximately 1/4” thick.  Be sure to wet the surface well to insure a good bond with the plaster (this is an important step in order to avoid the having plaster flake off a year or two later due to an insufficient bond). An amount of fresh plaster is mixed and plastered onto the wall (or tile) for one day’s effort (which is then called the ‘giornata’). The ‘sinopia’ (or design that has been laid on the arricio) is used as a guide to determine where to lay in the ‘giornata’. Artifical boundaries (like the traditional grid for transposition) are avoided, whereas edges of bodies, buildings etc..form natural boundaries. The working session for one day of fresh plaster can at best be 12 – 14 hours (depending on your external climate). Therefore, the design needs to be well thought out ahead of time in order to be able to complete the day’s section well and to allow it to invisibly merge with the rest of the painting.  The color of the fresh paint may not exactly match that of the dried, so at least be sure that your pigment mixes are the same, then the dried painting will be fine.  Allow about an hour for the fresh plaster to set before beginning to paint.

Cartoon:
If there is no sinopia, a monochromatic design rendered full scale for the project, is then transferred to the fresh plaster intonocco via a pounce bag tapped over tiny holes that have been pricked into the drawing. This can help one to work quickly and effectively. Be careful, the pricked holes become part of the final painting, so only transfer dark lines, or use a light to medium value pigment in your pounce.

Pallette:
Because the action of setting the pigment occurs as a chemical change within the plaster, the pigments need to be chosen carefully. Stick with known minerals from the earth as the lime burns organic and vegetable pigments. See the seperate page for fresco pallette recommendations. Using a pallette knife, simply mix a small amount of dry pigment with distilled water to create a useable paint.

Painting:

fresco WPA of Fisherman's Wharf

fresco WPA of Fisherman's Wharf

Now, finally, to painting. A tip on technique: as in watercolor, many dilute strokes can be absorpbed to build up color. In this way one can avoid large garish mistakes while gently building up the design. This of course, needs to be balanced with the need to work quickly. Remember to let an area dry before returning to it to apply fresh paint. Have on hand a variety of sizes of good sable brushes. Mix up your colors and tints before hand. Good luck.  Have fun.

If you run out of time, or find small errors that need correcting, it is possible to continue in Fresco Secco after the plaster has dried.

the Indirect Method

May 20, 2009

Indirect painting simply refers to the method of using multiple layers or levels of paint to develop an image. A subset or refinement of indirect painting is the mixed method or mische techinique. The best general description of the indirect painting technique that I know of comes from the out of print book, “The Painter’s Companion: a Basic Guide to Studio Methods and Materials”, by Reed Kay.  The book was originally published in 1961 by Webb Books, Inc. and later by Doubleday in 1972 with the new title “The Painter’s Guide to Studio Methods and Materials” .

I have followed his instructions with more and less success for a number of years.  I’m hoping to attract others who also have done so and are willing and interested to share their experience.  Please use the “Comment” link at the bottom of this article to post questions or experience.

“Indirect Painting
Indirect painting involves procedures in which the final effects in a picture are built up gradually by placing several layers of paint, one over the other, the upper layers modifying, but not altogether concealing, the lower layers.

Indirect painters put their first strokes on the canvas with the expectation that they will paint over them again when they are dry in order to change their effect in some way. Therefore when they put on the first layer of paint, called the underpainting, they do not try for a finished effect, complete in final color, drawing definition, and pattern emphasis. Instead at the beginning of the work they concentrate on one or two of these problems, and they depend upon (and make allowance for) the subsequent layers of paint to develop and modify the underpainting until the remaining problems are finally solved.

Indirect methods of painting have been employed in the past by many artists including Van Eyck, El Greco, and Rembrandt. More recently such painters as Soutine, Modigliani, Rouault, Braque, and Paul Klee have utilized the optical effects of indirect processes.

The existence of indirect painting arises from the fact that although paint may be used opaquely to conceal what is beneath it, it can also be applied so as to be transparent, revealing to a greater or lesser extent what it covers. For example, an oil color, such as cadmium red, in paste consistency may be brushed over an area of thoroughly dried yellow paint. If it is applied evenly and fairly heavily, it will conceal the yellow color entirely. Alternatively the red paint may be thinned with an appropriate diluent and may be spread so thinly over the dried yellow color that it lies over the yellow like a sheet of red cellophane, tinting the area a fiery orange color, while allowing the shape and every surface brush mark on the yellow area to remain visible. The orange tone thus obtained, by superimposing a layer of transparent red on an opaque yellow, will differ considerably in optical character from an orange made by combining the same red and yellow pigments in direct mixture on the palette. The directly mixed tone will have a weighty solid opacity, whereas the orange tone produced through the indirect, or “optical,” mixture of the two colors will have a more luminous vibration, rather like that seen in stained glass when light passes through it.

By exploiting this characteristic of the oil technique, painters found that they could develop a brilliant luminosity whose exact character was unobtainable in the direct techniques. The procedures most commonly used in indirect painting are called glazing and scumbling.

Glazing
A glaze is an almost transparent film of color laid over another paint surface, modifying the original tone of the area. It is usually a dark color placed over a lighter one. Some colors, such as alizarin crimson or viridian green, tend naturally toward a glaze-like transparency. Almost any color can be used as a glaze if it is thinned enough and placed over a lighter tone.

Scumbling
A scumble is related to a glaze in that it is a film of color laid over another paint surface so that it modifies the original color but does not completely conceal it. Unlike a glaze, the scumble is usually a light, semi-opaque color placed over a darker one. Some colors (Naples yellow, for example) are particularly suitable for this technique, but any color may be combined with opaque white and used as a scumble when it is placed over a darker tone. Scumbles are usually characterized by a pearly opalescence or by a soft smoky optical effect.

Mediums
The film of either a glaze or a scumble must be thin enough to allow the paint below it to be visible; otherwise the glaze or scumble would be completely opaque, and its chief characteristic would be lost. The simplest way to obtain the required thin transparent film is to take a little color straight from the tube-for example ultramarine blue-and rub it over a solid, dry, heavily applied area of light underpainting-let us say in this case, pure white. If the blue is scrubbed on vigorously with the brush or rubbed on with a rag or fingertip, it will spread over the white underpainting as a clear transparent tone of rich blue, which can be made lighter the more vigorously it is rubbed and dispersed. The white underpainting must be dry and hard as a rock to withstand the rubbing of the blue paint, or it will smear into the blue and produce a muddy mixture. If the paint is rubbed over too large an area, the binder may be stretched too far and may leave the pigment badly attached to the picture. However, most oil colors now on the market contain sufficient oil to prevent this occurrence.

A different character of glaze or scumble may be obtained by thinning the paint with a diluent or glazing medium, so that it need not be rubbed. This medium may be made up of various combinations of oils, varnishes, and volatile solvents. As in the case of the painting medium, the personal requirements of each artist must determine the exact composition of such a medium. A painter who wishes to glaze rather heavily and to obtain an even vitreous film over an area may want a glaze medium that can be applied evenly and rapidly to the picture surface. The artist may also want the glaze to set quickly so that the picture may be placed upright in a short time without the paint’s trickling. Such rapid setting mediums contain varnish or driers or both, along with the oils, and require a certain skill in handling, since they quickly become tacky and then cannot be reworked or easily removed.

In the original text this formula for a rapid setting medium is given.

  • 3 parts by volume stand oil
  • 2 parts by volume damar varnish(5-pound cut)
  • 3 parts by volume turpentine
  • 1 or 2 drops cobalt drier per pint of medium

In present times artists looking for a rapid setting medium would use Liquin by Winsor Newton or Galkyd by Gamblin.

Another painter may prefer a slower setting material so as to be able to deepen or lighten it, remove it or add to it, or reinforce modeling transitions with it. Such a medium might consist solely of stand oil with a little turpentine added.

In general, the less medium used, the better. The glaze or scumble should be made lighter or thinner by dispersing or rubbing rather than by adding excessive amounts of glaze medium as a diluent.

When discussing the merits or disadvantages of a given glazing medium, one must keep in mind the way it is to be used. If only small amounts of medium are added to conventional tube colors, such factors as the yellowing of a particular oil (sun-thickened oil, for example) or the possibility of redissolving a soft resin varnish (such as dammar) are much less hazardous than they would be if the painter were to use large amounts of the medium in proportion to the tube color. The practice of adding glaze mediums to oil paint until it has the consistency of a watercolor wash seems to me to be unnecessary and to magnify all the technical dangers of the oil technique. The desired effects can usually be obtained with less medium and more skill.

Notes
A. The glaze or scumble actually accentuates all brush marks and surface irregularities in the underpainting. Thus the character and direction of all strokes in the underpainting should be meaningful and consistent with the painter’s purpose.

B. Colors diluted with too much glaze medium may trickle. Sometimes such overthinned color develops small spots in the dry film which look like dust spots. Actually they are particles of color clumped together like islands of pigment in a sea of oil.

C. The underpainting must be bone dry before it receives a glaze or scumble.

D. Glazes containing so much medium as to create a glassy surface are dangerous, since subsequent films cannot adhere well to them and must crack at the first movement of the canvas.

E. Glaze films containing high amounts of spirit-resin varnishes (such as dammar) in relation to the oil and pigment content are extremely vulnerable to cleaning operations, since the varnish is always resoluble in the cleaning agents used by most restorers. Glazes that are the final or finishing films on a picture are especially vulnerable since they are usually thin.

F. Pictures glazed with slow-drying colors and very slow-drying mediums (such as walnut oil or poppyseed oil) should be shielded from dirt and dust while they dry.

G. Unsuccessful scumbling or glazing effects may be removed while the glaze is still fresh without disturbing the underpainting by wiping the surface with a clean, soft, lintless rag, moistened, if necessary, with a little turpentine. Such removals are possible only if the underpainting was thoroughly dry before the glaze was applied.

Technical Procedures
Technical complication and variety increase with indirect painting. One method frequently employed may be described in the following general terms:

1. A brush drawing involving only one or two colors is developed to mark out the important locations and divisions on the canvas. The paint is thinned by means of a “lean” medium (such as 1 part sun-thickened oil, 1/2 part varnish, 3 parts turpentine) to a brushable consistency which flows rather easily.

2. The dark and light contrasts are developed by the use of a “lean” fast-drying white (such as flake white) in all the light areas.  [Flake White is lead based and therefore rarely used nowadays.  Various manufacturers now make alkyd based fast drying whites that are less poisonous]. In the light middle tones the white is mixed slightly with another pigment (ocher, for example, or Indian red). Darks are produced by adding more color or mixed grays to the white, but all darks are kept much lighter than they will appear in the finished painting. The main effort, at this point, is to produce strong placement and gesture of shapes and volumes. These should be expressed broadly with little surface detail but should be accurate as to the relationships of the larger major pictorial masses. At this stage, the effect of this underpainting must be lighter, both in the lights and the darks, than the artist wishes the finished picture to be (Figure 3-16).

3. When this underpainting has dried thoroughly, color relationships are developed over the light monochrome by the use of glazes. These may be brushed on and then modified by wiping them down with a rag or a clean brush so that they emphasize and reinforce the drawing and movement of the underpainting.

4. Color effects are strengthened and made more definite by vigorous direct painting into the glazes (either when the glaze has dried or while it is still wet) with substantial strokes of opaque color. Glazes that have lowered the tone of an area too much may be scumbled over with a lighter color to raise their tonality. Drawing and edges are redefined, especially where glazing or scumbling has caused a passage to lose its initial strength.

Notes
In considering the many possible variations of this procedure, it is wise to keep in mind a few of the possible difficulties.

A. The glaze tends to darken the general tone of the picture. To compensate for this, the underpainting must be kept considerably lighter than the final painting.

B. The glaze and the scumble tend to create soft, unified, diffused effects. Therefore the underpainting should be strong, even somewhat “harder” than the anticipated final effect.

C. If the quality of the glaze is not relieved by some opaque painting and vigorous redrawing, the total effect of the picture may become too washy, spotty, and transparent.

D. In all indirect processes where more than one layer of paint is anticipated, successive layers should be applied “fat over lean.”

Copyright ©1972 by Reed Kay, “The Painter’s Guide to Studio Methods and Materials” (Doubleday & Company)

the Oil Pallette

May 20, 2009

I suspect that every artist has his or her favorite pigments and colors.  It is necessary to find your own.  It can be quite challenging at first to sort one’s way through the huge selection of colors available at any art supply store.  Experience is the best guide.  But that’s hard when you don’t have it.
Here’s what I use:

Color

  • Two yellows (a cool and a warm one, like citron yellow and cadmium yellow medium)
  • Two reds (a cool and a warm one, like  alizarin crimson and cadmium red medium)
  • Two blues (a cool and a warm one, like thalo blue and ultramarine blue)

The Earth Colors

  • Sienna (burnt and raw, though I most use burnt)
  • Umber (burnt and raw, though I mostly use raw)
  • Mars Red (a red iron oxide)
  • Yellow Ochre

Neutrals

  • Two whites (Lead white and Titanium)
  • Warm gray
  • Mars black

From these basic colors I can mix just about any thing I need while maintaining a clear idea of how I got there.  In addition, the spectral purity of a color can best be appreciated by employing it directly out of the tube, unmixed.  Therefore, one can try to achieve certain ‘mixed’ colors through translucent layers of paint, rather than mixing on the pallette.  Doing this means becoming familiar with the characteristics of the pigments themselves (opacity/translucency, saturation/tinting power and capacity to absorb oil).  It also means using the translucency effects of the oil medium to create rich vibrant colors, that resonate like a sunset.

Light and Color

May 19, 2009

To talk about color divorced from whatever medium in which it is suspended means necessarily taking a theoretical approach. So, a small digression here:

There are many ways in which both the painter and the scientist approach color. For the scientist, a rational model is constructed to categorize and describe it as a phenomena. At colorsystem.com there is an excellent presentation in German of the various scientific theories that have been created over time.  Additional to scientific theories, artistic color theories tend to be more relational, more psychological, and ultimately more visceral. The theories of Josef Albers, in ‘The Interaction of Color’ and Johannes Itten, in ‘The Art of Color’ are two such 20th century examples.

Another way to approach color involves viewing it from the standpoint of light itself, that is, additive and subtractive light.  Notebook has an interesting resource page on the topic of Light and its qualities. Thus, while the painter’s craft necessarily exists in the world of subtractive light, by manipulating mediums and pigments to experientially stimulate thoughts, emotions and sensations, it derives – as does life itself – from the world of additive light.

additive primaries

additive primaries

The primary colors for additive light are red, green and blue. Thus, if three different spotlights are focused together upon one location, and one light is covered with a filter of red, the second of green and the third blue, the location itself will reveal white light to the human eye. The technologies of television, computer screens and color separation in the printing industry are all based upon additive light theory or RGB (red, green, blue).

subtractive primaries

subtractive primaries

The primary colors of subtractractive color theory are yellow, red, and blue. Every young child learns this in kindergarden. He/she learns quickly that yellow plus red makes orange, yellow plus blue makes green, red plus blue makes purple, and all three together create black (or a very mucky brown).  I call this kindergarden primary color.

process pramaries

process pramaries

A further refinement to subtractive color theory are the primary colors of the printing industry. Rather than the yellow, red and blue of kindergarten, the printing industry uses process yellow, magenta, cyan and black. Process yellow actually contains the slightest bit of green in it – a cool, translucent, lemon yellow. Cyan is a translucent and dark turquoise kind of blue. While magenta is a cool, translucent ruby red, similar to the external fleshy covering of pomegranate seeds. These subtractive primaries, derived from additive light theory combine in different ways – principally through layering –  to create the whole gamut of visual color that we experience in 99% of our printed material.

I tend to speculate that if magazine green never comes from green ink, then why should an artist mix his or her colours so easily on the pallette? Similarly, through the luminosity of oil, a painter’s green created from superimposed layers of yellow and blue is qualitatively a different experience than that of a mixed green on the pallette. Thus, since painting occurs in the world of reflective light, and subtractive color combinations are intuitively clear, it’s reasonable to ask, how much palette mixing is truly necessary if the beauty of light itself is the goal? Additionally, any colour we perceive in the natural world is always more beautiful in the degree to which it can transmit light. The ancient techniques for creating imagery are time tested procedures for isolating, cherishing and showcasing the spectral purity and luminosity of individual pigments. The medium of oil is particularly adept at transmitting light through layers.

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