July 31, 2010
July 14, 2010
My theory of painting is simply this: travelling has to be at least as interesting as finally arriving. It helps to have a numinal idea of what arriving should actually look like, but it wouldn’t be “art” if I already knew, would it? Thus, I always experience a certain kind of hesitancy as I approach the final levels in a painting. Do I really want the journey to end? Will this level “do” it? Or will it need more? And if so: what, where, how? Will the final image end up looking like a bored adult in comparison to its earlier youthful promise? Should I have stopped at some earlier vantage point along the way and just grabbed the ‘chute?
Additionally, imposing a chromatic structure on image development allows for lots of lateral exploration at each level of additional color. Or to put it in even simpler terms, it helps me to control chaos. Chaos of my own emotions and my emotional reactions either to the subject matter or the developing image in front of my nose. But too much control results in lifelessness, too little, and it’s just chaos.
Riding the surge of that inbetween space, of that wave, is richly rewarding: both exhilirating and terrifying. Committing myself to it involves a kind of surrender and also a kind of trust. If I imagine that the landscape I paint is essentially external to me, if I imagine that the paints I use are essentially “other”, if I imagine that the world itself is not a part of me and myself a part of it, then there is fear.
So, instead of experiencing distance to it all like some alien stranger, I’d rather be blue (thalo or ultramarine, to be exact)…
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:
- 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)
- Viridian (a pure green)
- Terre Verte (an earth green)
- Sienna (burnt and raw)
- Umber (burnt and raw)
- Mars Red
- Yellow Ochre
- Two whites (Lead white and Titanium)
- Two grays (Payne’s, and Warm Gray)
My thinking is that 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 pigments themselves (opacity, translucency and tinting power). It also can mean using the translucency effects of the medium of oil or wax itself to create rich vibrant colors, that resonate like a sunset.
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 of the various scientific theories that have been created over time. At rationalpainting.com I recently discovered an online community of realistic painters who apply the Munsell Color Theory in a very practical way to their working methods. 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.
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).
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.
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.
If magazine green never comes from green ink, then why should an artist mix his or her colors so easily on the pallette? Similarly, 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. Since painting occurs in the world of reflective light, and subtractive color combinations are experientially clear, it’s also reasonable to ask, how much pallette mixing is truly necessary if the beauty of light itself is the goal? Any color we see 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 itself being particularly adept at transmitting light through layers.
May 19, 2009
Everything changes when you begin to do fresco. The whole process is a chemical reaction in the plaster itself that can take up to 6 months to a year to ‘cure’. So it’s really important to stick with known and trusted colors; the traditional pallette is mainly comprised of earth minerals.
Here is a list:
Raw umber – Natural earth – Highly Permanent – Tedancy to flour : needs a lot of binder
Burnt umber – Burnt natural earth – Highly Permanent – Mix it well before puddling the colour
Raw Sienna – Natural earth (Italy) – Highly Permanent
Burnt Sienna – Natural earth (Italy) – Highly Permanent – Mix it well with the brush before application
Cadmium red purple (genuine) – Cadmium sulfo seleniure – Highly Permanent
Venise red – Iron oxide – Highly Permanent – Very good light resistance – stable in mixture (Mars Red, Pozzuoli Red)
Cadmium red (genuine) – Cadmium sulfo seleniure (minéral) – Highly Permanent – Covering – don’t mix with leads or titanium white
Mars orange – Iron oxide – Durable
Yellow ochre – Natural earth – Highly Permanent – Many variations and shades of this exist, Italian, Greek, and French
Cadmium yellow (genuine) – Cadmium sulfide – Highly Permanent – Covering – don’t mix with white lead or with ultramarine blue
Viridian (genuine) – Hydraded chrome oxide – Durable – Very solid in mixture – use it in glazes
Chromium oxide green – Chrome oxide – Highly Permanent – Covering and coloring – very stable in mixture
Green earth (Terre Verde) – Natural earth – Highly Permanent
Ultramarine blue – Silico-aluminate of polysulfuretted sodiums – Highly Permanent – Luminous and intense – don’t mix with chrome yellow
Cerulean blue (substitute) – Barite sulfate and phtalocianine blue – Highly Permanent – High colouring capacity
Cerulean blue (genuine) – Cobalt stanate – Highly Permanent – Opaque – unvarying in mixture
Cobalt blue – Cobalt aluminate – Highly Permanent – Excellent light resistance – stable in mixture
Black and white
Titanium white – Titanium dioxide – Highly Permanent – Don’t mix with cadmiums – luminous – intense
Lime white – slaked lime – Highly Permanent – dull highlights, natural plaster tint
Lamp black – Carbon – Highly Permanent – the favored black for fresco
This blog space is for those who are actively working with these pigments and who want to exchange information about them. Thus additions and corrections are welcome.
May 18, 2009
Pigments ground into an appropriate binding medium create paint. The medium defines the paint: the handling (brushwork and siccative qualities), viscosity, translucency, toxicity and permanency. Oil paints are pigments ground and suspended in linseed oil, as acrylics are pigments ground and suspended in acrylic resin. Watercolors are pigments suspended in gum arabic and egg tempera is pigment suspended in the yolk of a fresh egg. Encaustic uses resinated hot wax, while for fresco the setting of the fresh plaster creates the permanency of the water diluted pigment.
Quite naturally, the medium has it’s own qualities which then become a matter of personal taste, capacity or preference. Oil, acrylics and encaustic as mediums, leave a tactile residue of their own quality. Does that quality resonate within you? Find out! All mediums require a support, as for some like watercolor or fresco the support plays a critical, essential role. Do the qualities of the support resonate within you? Find out!
Most modern artists don’t need to grind their own colors to practice their art. However, for the artist working in fresco or egg tempera contact with the powdered pigment is essential. In addition, knowing which pigments to use for which medium is critical not only for successful in-the-moment-handling but also for longevity and personal health. Manuals like ‘Artist’s Handbook of Materials and Techniques’ by Ralph Mayer or Max Doerner’s ‘The Materials of the Artist’ are time honoured general resources. Daniel Thompson’s ‘The Practice of Tempera Painting’ is probably the best comprehensive resource for the tempera painter. Each pigment has its own nuances of hue, saturation and value, also transparency and opacity. Getting to know both mediums and pigments qualitively is a real and exciting adventure. At makingpaint.com you can find extensive information from another working and experimenting artist.
Finally each medium defines its pallette. Fresco due to the chemical interactions of plaster and pigment offers perhaps the most limited choice, while oil may offer the widest. Becoming familiar with pigments and mediums up-close-and-personal is like becoming a master chef. You choose the ingredients based upon experience and a good cookbook, but it’s the attention to detail in the processing that determine a truly successful dish. And who doesn’t enjoy a well prepared meal? Should we treat our eyes with any less care?
May 9, 2009
The list of pigments available for use in egg tempera is essentially the same as that of oil with the exception of the lead based pigments of naples yellow and flake (lead) white which are highly poisonous, anyway. The lead based pigments discolor upon exposure to sulphur fumes; their discoloration can then be avoided by varnishing the final picture but why bother when so many other safer pigments are available today?
Powdered pigments can be quite exciting to see and to use – especially for the first time. In egg tempera you must always work with powders to grind up the paint for the daily session. It is possible to pregrind up a number of common colors in distilled water and keep the paste in a small airtight jar ready for the egg yolk medium. This avoids the short time shelf life of egg spoilage.
In either case, I use a glass muller and a piece of frosted glass for grinding. Though it may sound like alot of work, in actual practice, I only use a few pigments each day so a daily session does not take alot of extra time or effort. I try to be sure to clean off the muller and glass plate directly after each grinding session.
Because you will have direct skin contact with the pigment, it is critical to inform yourself regarding its characteristics. Poisonous pigments should naturally be avoided. The Society of Tempera Painters has extensive experiential information relating to individual pigments and their various characteristics. So, take my own thoughts here with a grain of salt.
Generally, I like to use earth pigments. They grind up easily and absorb medium well, too. Grinding your own colors allows you to get to know the pigment’s characteristics in an intimate way. Translucency, tinting power and handling then become first hand knowledge. Because I use egg tempera as an underpainting, I usually temper each color with zinc white to create a tint of the hue that I want. Zinc white is somewhat transparent so I can achieve a pastel hue without adding too much water or egg to dilute the pigment. (If I add too much water, then there is not enough binder left to hold the pigment. If I add extra egg in order to dilute the paint, the binding mechanism works fine but it is harder for me to visibly control the dilution.)
For the color pallette itself, I use ultramarine blue, viridian green, mars red, burnt umber, burnt siena, yellow ochre, cadmium yellow, vine black and zinc white. I tend to honor spectral purity so I don’t mix up colors on the pallette but instead paint thin layers of a yellow and red for example to achieve an orange.