Monday, June 30, 2008

The Two Rules of Foliage


1. When seen against the skyline, leaves are always darker than the background.


2. When seen below the skyline, leaves in a natural setting are always lighter than their surroundings.


The "skyline" is the line of the top of the trees against the sky. Here's an example of Rule 1, which is not surprising.

The second law may come as a surprise, because we always tend to think of leaves as dark silhouettes, and we tend to paint them that way. But in a natural setting, whenever you see any leaf against any background below the sky, chances are that nearly every single leaf is lighter than what is behind it.

The exceptions to Rule #1 are so rare that they are momentary and breathtaking. Here’s a shot of a Rule 1 exception, taken from a fast-moving car when the late afternoon light penetrated beneath a deck of stormclouds. The effect only lasted five minutes. It can be very exciting to break this rule, but all the conditions should be carefully observed.

The exceptions to Rule #2 (pink circle at right) happen a little more often, but usually only when leaves are seen against human interventions, like lawns, walls, or cleared areas. If you walk around in a forest or a meadow, the leaves are almost always lighter than what’s around them.

I assume that Rule #2 happens because of the light-seeking nature of leaves. They are little machines that are superb at angling for the best position to capture the most light.

Sunday, June 29, 2008

High Dynamic Range (HDR) Imaging

This photo of the interior of John Burroughs’s writing studio illustrates a fundamental limitation of photography.

The view out the window is so bright that it has burned out (or “clipped”) to white, and the shadows in the corner are an impenetrable black. In both instances, the optical sensors are unable to record any meaningful color data. But in real life, our human eyes could see plenty of color and detail in both areas of the view.

The problem is that the camera, whether film or digital, can only record within roughly a 300/1 ratio of light intensities, while the human eye can easily respond to a range of 50,000/1 within a single scene.

The range of intensities is called the dynamic range. The camera is not the only thing with a limited dynamic range. The same 300/1 ratio also applies to digital printers, computer screens, or artist’s pigments.

It’s analogous to the problem you’d have playing Beethoven’s Ninth over a cellphone.
Photographers have found a way around the problem. By taking several different exposures of the same scene (one shot exposed for the bright sky and another for the dark shadows), the photos can be combined, or “tone-mapped” into a single image where every part of the scene is visible in rich, glowing color.

Here is a photo of a room interior with a normal exposure.


With tone mapping in HDR photography, color is saturated and detail is present throughout the image.


The effect of HDR can look a bit garish at first, partly because we’re not used to it, but also because it can take away the excitement of strong contrast. But in artistic hands, it can also be otherworldly and attractive, reproducing the feeling of what an artist might see, with color and detail infusing the entire scene, both in the shadows and in the blue sky.

The real frontier for HDR photography will be the new brighter computer screens, like the new BrightSide technology, which will be able to output HDR image files in their true range of brilliancy, giving the viewer the feeling of standing in a real street in the bright sunlight.

What does all this mean to painters? Although our eyes can see greater dynamic range than the camera can see, we’re still forced to translate our observation through the measly 300/1 funnel of pigments on canvas.

When you're painting subjects in soft, overcast light, it's easy to convert reality into paint. But when you have subjects with extreme tonal contrasts, like views out windows, or illuminated signs at night, a successful painting requires a keen awareness of the distribution of tones.
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Flickr HDR groups, link and link.
Wikipedia on HDR imaging, link.

Saturday, June 28, 2008

Action Figures

What? An Arthur Denison action figure? And isn’t that Nallab the librarian all beefed up and ready for adventure?

Back in 1995 when Dinotopia was in development for a theatrical motion picture, the Hasbro toy company embarked on an ambitious proposal for a Dinotopia toy line. What you are looking at are one-of-a-kind presentation prototypes, not production toys.

Focus group tests at Hasbro showed that boys and girls liked Dinotopia equally and that kids spontaneously played with dinosaur toys by having people feeding the dinosaurs and riding them, not just the “attack mode” that has become so commonplace. Hasbro took the unprecedented step of teaming up their boy and girl toy designers to generate ideas in what is normally a very gender-segregated and conceptually stereotyped category of merchandise.

For my own part, starting as early as 1991, I did a number of sketches to explore how my characters might look if they were translated visually in other forms.

Above are some character key drawings in gouache with an acetate overlay to see how they would look in line and flat color.

The theatrical motion picture never came to pass, and neither did the toys, which is a common fate of concept proposals. In 1999, we decided to permit a TV miniseries to move forward instead, and we strictly limited the merchandising—but that’s another story.

On future posts, if you’re interested, I’ll share a few of the exploratory prototypes as well as some of my own unpublished development sketches.
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I’d like to express my thanks and appreciation to the talented team at Hasbro, as well as Michael Stone of The Beanstalk Group, plus Jim Black, Ken Ralston and Lynda Guber, together with Robert Gould of Imaginosis, who helped develop the film project.

Friday, June 27, 2008

Vasnetsov’s Flight of Fantasy

We tend to associate 19th century Russian painting with earthy and uncompromising realism, so it’s a rare treat to see what one of the Russian painters came up with in the realm of fantasy.

This image by Victor Vasnetsov (1848-1926) is called “Flying Carpet” from 1880. It was commissioned for a railway station, and contains some of the era’s sense of optimism and adventure.

The colors are muted, both in the cloudy sky and the winter landscape below. A scrap of cloud, a slice of river, and a trio of owls hover at the edges of the composition.

The hero stands astride the carpet, his jacket flapping. What is his mission? And what is that enigmatic object in front of him? A lamp? The Ark of the Covenant? A steampunk jukebox?

This painting was criticized by Russian writers for undermining the new spirit of realism. The influential writer Chernyshevsky argued that “aesthetic beauty can only exist as an exact reflection of physical reality and not a manifestation of the imagination. Only in representations of physical reality…can the artist reveal true beauty.”

Eventually thinkers like Nikolai Chernyshevsky and Vladimir Stasov won over Repin, Vasnetsov’s good friend, who had painted a few fantastic scenes, like "Sadko in the Underwater Kingdom" (for which Vasnetsov was the model). Repin gradually moved away from imaginative subjects, but Vasnetsov, despite the critics, followed his vision of painting scenes from folklore and mythology.

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Wikipedia entry on Vasnetsov, link.
Link to GJ post showing Sadko in the Underwater Kingdom by Repin.
Thanks, Barry.

Thursday, June 26, 2008

Dinotopia Arrives in Switzerland

Yesterday a truck arrived outside a museum called Maison d’Ailleurs in Yverdon, Switzerland and unloaded several wooden crates containing over 50 original Dinotopia paintings.

The exhibition, called “Return to Dinotopia,” will open October 4 and will run for five months, then continue to other museums in Europe. It will include new paintings and maquettes from Dinotopia: Journey to Chandara.

Maison d’Ailleurs (literally "House of Elsewhere") is a jewel of a museum specializing in "science fiction, utopia and extraordinary journeys," with a recently expanded Jules Verne collection. I did this plein-air watercolor sketch of the museum (the white building) when it hosted the last Dinotopia exhibit five years ago.
I’ll be in attendance for the opening of “Return to Dinotopia” in October, which will coincide with the publication of the French edition of Chandara from Editions Fleurus of Paris. After a visit to Switzerland, I’m planning to visit Paris for a few signing events. I am as excited as a schoolboy because I’ve never been to France before!
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Maison d'Ailleurs, link.
"Return to Dinotopia" and "Fantastical Art" exhibitions, link.
Editions Fleurus, link.
Mr. Patrick Gyger of Maison d'Ailleurs is arranging the European tour after Switzerland. To contact him: maison@ailleurs.ch

Wednesday, June 25, 2008

Art By Committee: Mutated Rodents

On Wednesdays we play a group sketch game called "Art By Committee." This all began with a sketchbook that I bring to coffee shops whenever I have lunch with fellow artists. The challenge is to illustrate an actual excerpt taken out of context from a science fiction novel.

This week’s quote about mutated rodents brought out some brilliant solutions. Thanks to everyone for lending your time and talent.

If you think you might like to give it a try next week, check at the end of the post for the submission guidelines and the next challenge.


…and the sketch by Jeanette, me, and a couple friends.

Here’s next week’s quote: “I was thankful I had brought goggles when the quick deadly dust storms came boiling up.”

Please scale your JPG to around 700 pixels across (I'm trying to keep the files small so I don't top out my Blogger account). Title it with your name, send it to: jgurneyart(at)yahoo.com, subject line ABC, and let me know in your email if you want me to link to your blog or website. Please have your entries in by next Tuesday at 10:00 AM Eastern Time USA.

Tuesday, June 24, 2008

Pareidolia and Apophenia

Whenever you see a face in a cloud or the man in the moon you’re experiencing a phenomenon called “pareidoliac apophenia.” One example is the apparent face that emerged from the shadows of a mesa on Mars.



The term apophenia was coined by Klaus Conrad in 1958. It refers to our tendency to find meaningful patterns or to draw connections in random sets of data.

In east Asian folklore, by the way, they don’t see a man in the moon; they see a rabbit.



Another example of apophenia is the apparent synchronicity between the 1939 film Wizard of Oz and the Pink Floyd album Dark Side of the Moon. If you watch this YouTube clip of the album playing as the movie soundtrack, meaningful connections seem to emerge.

Pareidolia is a specific kind of apophenia where faces or other patterns emerge from random shapes. The Rorschach test is a classic example. It also explains the remarkable discovery in 1978 of the face of Jesus in the burn marks of a tortilla, and the appearance of the Virgin Mary in a grilled cheese sandwich.

In September of 2007, a monkey god was observed in a car-damaged tree in Singapore. Pilgrims have flocked there ever since then to offer bananas to the monkey deity.

As artists, we can have some fun with this phenomenon. Whenever I sense a face emerging from the randomness of the world, I like to sketch it, accentuating the pareidolia just slightly. Maybe I’m going crazy, but last week I saw a face in the dormer windows of a building, and did this quick sketch to push it just a little.

Another time on a hike I stopped in my tracks when I saw a face in the rocky cliff. I did this sketch to accentuate the forms just enough to make it apparent, but without making it too obvious, hopefully. Rackham did the same thing with tree roots.

Though I didn’t know the name for it at the time, I used the idea in The World Beneath (1995), where Lee Crabb sees a skull (center) and Oriana sees a mother figure (right) in an apparently random grouping of stalagmites (left). Designing a form that could be interpreted in two different ways was a real brain-teaser.
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Wikipedia entries on pareidolia and apophenia and Dark Side of the Rainbow
More on the Monkey Tree phenomenon, link.
Man in the Moon, link.
Rabbit in the Moon, link.
Alien face in duck x-ray, link.
Thanks, Andy

Monday, June 23, 2008

Selectivity

In any given plein-air painting of a few hours, you can probably only capture one percent of the detail that meets your eyes.

There have been some amazing attempts to capture more with extended periods of close observation. The PreRaphaelites tried to follow John Ruskin’s advice in his influential treatise Modern Painters in 1843. Ruskin suggested that artists should to “Go to Nature in all singleness of heart, and walk with her laboriously and trustingly, having no other thought but how best to penetrate her meaning, rejecting nothing, selecting nothing, and scorning nothing.”

In other words, go for the 100 percent.

Here’s a closeup of William Holman Hunt’s Hireling Shepherd (1851), where he lovingly painted the tiniest blades of grass. The level of detail creates a haunting, dreamlike quality, and everything is imbued with symbolic meaning.

Assuming that not many of us have the time or patience or desire for such infinite exactitude, the question is WHICH fraction—which one percent—of the immensity of Nature should we try to capture?

When Daniel Robinson set out to paint this beached sailing ship he had a hierarchy of interest. With the limited time he had to paint the scene, he had to “reject, select, and scorn” a lot of details. He scrubbed in the grass as a flat tone and did the same with the beach, the far mountain, and the sky.

Instead he lavished his attention on the ship’s standing and running rigging. He most likely used a small sable brush (either a round or a rigger brush) with his hand steadied with a mahl stick. He painted what interested him the most and simplified the rest.

It’s a completely different aesthetic from what Ruskin advocated. The point is to convey a feeling of completeness, selecting only the one percent that interests you.
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For a deep analysis of Holman Hunt's Hireling Shepherd, check out the Victorian Web Book and the Wikipedia entry about the painting.

For Ruskin's quote in context, link.

Sunday, June 22, 2008

Palette Arrangements

Palettes appear in many paintings, especially self-portraits, and they reveal something about the artist’s thinking and working process.

Charles Willson Peale (1741-1827) doesn’t show his working palette: after all, where’s the white? Instead he wants to let us know that he understands Isaac Newton’s theory of primaries and color mixing.

In the Middle Ages, artists kept their paint in shallow containers like shells or saucers, and expressed a dislike of mixing paint.

The first reference to a mixing palette was from an account of the Duke of Burgundy in the 1460s, where he described “trenchers of wood for painters to put oil colors on and to hold them in the hand.” Often palettes were set up by assistants, which helped standardize the procedure for laying out the colors.

The practice of mixing colors on a palette was common in the early 1500s. By 1630 it was a lively topic. Vasari said of Lorenzo di Credi that he “made on his palette a great number of color mixtures.” Above, Velasquez painted himself in Las Meninas in 1656. Note the sequence: red and white, yellow, with dark and cool colors away from the thumb.

This detail of a portrait of Asher Durand by Daniel Huntington, reveals a typical arrangement, with light colors at the top, that is, near the thumb hole.

As this self-portrait by Milly Childers shows, often bright red pigments like vermillion were placed ahead of white because red was seen as a valuable, intense color, different from all the others and in a sense brighter than white.

Above and below are by Sargent. Blues, greens, and black went away from the thumbhole. The paints were usually placed on the outer edge, away from the body, which makes Paul Helleu’s layout (below) a bit puzzling—there’s a real danger of getting paint on his jacket.

References to palette knives show up around 1650. Elaborate premixed tints became a common practice by the late 1600s. During the next century artists more frequencly used a “loaded palette” with fully developed gradations of tints and variations. A Swiss painter’s manual in the 1820s compared the gradations on the palette to the notes of a piano keyboard.

Whistler was said to spend an hour preparing his mixtures. Delacroix’s assistant reported that it sometimes took days to set up his master’s palette.

Cezanne (left) and Picasso (right) were evidently either ignorant or indifferent to these traditions, and showed their own palettes hanging vertically with a few confused and random smudges of color.

Now with the resurgence of realism and a revived interest in the craft of painting, palette arrangements are a hot topic again. Many artists work on a tabletop or taboret-mounted palette instead of a hand-held palette. Let me know how you set up your palette, and I’ll try to do another post in the future about contemporary methods.

My source for this post is Color and Culture: Practice and Meaning from Antiquity to Abstraction, by John Gage, Little, Brown, 1993.

Saturday, June 21, 2008

Three Value Study

American illustrator Tom Lovell (1909-1997) often planned his compositions with soft charcoal, keeping the design to three simple tones: light, middle, and dark. This preliminary sketch was done with vine and compressed charcoal on tracing paper, about 3 by 6 inches.

The three-value study is an effective way to plan a painting, not only because it’s fast, but because the medium lends itself to a simple, bold statement. Instead of getting carried away with details of the figures, Lovell is concerned only with their overall position and gesture. He shapewelds the figures at the right, and accentuates the central caped figure by lightening the tone of the far bank behind him.

Friday, June 20, 2008

The Creative Habitats of John Burroughs

Artists and writers love to customize the perfect environment for their creative life.

John Burroughs, (1837-1921) strove for rustic simplicity. Burroughs was an American naturalist and essayist, a friend of Walt Whitman, John Muir, and Theodore Roosevelt. According to Jeff Walker, professor of geology at Vassar College, Burroughs was “a pioneer of the new school of nature writing, and one of the most widely read authors of his time.”

Yesterday we joined Jeff Walker and a small group of scholars from the Burroughs Association to be the first outside visitors in decades to tour the 9-acre family-owned estate south of Kingston, New York.

The first house that Burroughs built here was a stone cottage called “Riverby” (above), now abandoned, with a collapsing porch and three floors of accumulated bric-a-brac. Burroughs became disenchanted with its dark and crowded interiors, and wanted another place to write.

Fifty yards downhill from Riverby he built a 15x20 foot structure called “Bark Study,” covered with chestnut bark, with a cobble chimney on the north side.

Inside Bark Study his writing desk remains just as he left it, with round stream stones, ink bottles, and quill pens. The ashes in the fireplace were from his last fire in 1921. Members of the family told us that they had to remove the books from the shelves for safekeeping because they were getting eaten by bugs.

In good weather, Burroughs would do his writing in this place, called the “Summer House,” which has survived for over a hundred years because of the rot-resistance of the cedar wood. In his day, there would have been no trees to block the wide vista of the Hudson River. But Burroughs didn't care for big views of the Hudson. He aspired to live in a shack by a swamp.

After 1895, he built nearby "Slabsides," a masterpiece of rustic architecture, which is the only structure open to the public, twice a year in the spring and fall. Here his only view was a swampy celery patch. He would entertain guests like Harvey Firestone, Thomas Edison, and Henry Ford—and legions of adoring fans, sometimes 100 per day.

He was always trying to rid himself of pretentions and to keep his life simple: “Unless, therefore, you have had the rare success of building without pride, your house will offend you by and by, and offend others.”
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John Burroughs Association, link.
Wikipedia entry on JB, link.

Thursday, June 19, 2008

Chiaroscuro

The word “chiaroscuro” translates as “light-dark” in Italian. Generally it means the management of light and dark tones in a picture. As an art term, it has a variety of specific meanings.

Originally it referred to a way of drawing on tone paper using white paint for the lighter areas and ink for the shadows. It also can describe a type of woodcut block printing where separate blocks are used for different degrees of tone.

More often it describes the use of bold contrasts of illuminated areas versus shaded passages within a composition, as with this Caravaggio. The effect conveys not only realism of appearance, but psychological tension.

Note the separation of light and dark tones. Caravaggio doesn’t muddle around very much with transitional halftones or reflected light. To achieve this tonal separation with a posed figure, the model stand needs to be surrounded with dark cloth to suppress fill light.

Sometimes this effect is called “tenebrism,” especially in association with 17th Century followers of Caravaggio in Spain and Italy.


Chiaroscuro is also often associated with candlelit scenes. In this painting by Georges De La Tour, the light source comes from within the picture and the overall effect is dark and dramatic. Note the subsurface scattering in the child’s fingers.
Finally the term is used to refer to the use of controlled tonal modeling to convey dimensionalism in anatomical form. Peter Paul Rubens’ “Elevation of the Cross” is a good example of this sense of chiaroscuro. The image has a bulging, rippling, “formy” appearance.
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Related GurneyJourney posts: Key and Fill lighting, high-contrast shapewelding,

Wednesday, June 18, 2008

Art By Committee: Enchanting Voice

On Wednesdays we've been playing a group sketch game called "Art By Committee." I present an actual excerpt from a science fiction manuscript and you have all week to illustrate it.

This week’s challenge about an enchanting voice brought out amazingly creative solutions ranging from heartwarming to comic to romantic to vaguely sinister.

If you were too busy to contribute this week, and are looking for a reason to goof off, I hope you can join in next time. The new challenge is at the end of this post.

Alicia Padron

John Randall York

Andy Wales

Roberta Baird Christoffer Gertz Bech

Susan Adsett

Anna Myers

Rob Hummer

And the one from the original sketchbook.

Here’s next week’s quote: “He felt violated, somehow. It was unbearable to him to see these detested creatures, mutated rodents, among things he’d loved all his life.”

Have fun! Please scale your JPG to around 700 pixels across. Title it with your name, send it to: jgurneyart(at)yahoo.com, subject line ABC, and let me know in your email if you want me to link to your blog or website. Please have your entries in by next Tuesday at 10:00 AM Eastern Time USA.

Tuesday, June 17, 2008

Dalleo’s Deli

I forgot to bring my palette knife last Friday, so I had to use a plastic spoon to mix the paint.

Jeanette I set up our easels across the street from Dalleo’s Market on Mill and North Clover Streets in Poughkeepsie, New York.

A police officer stopped his patrol car and walked slowly over to us. I thought he was going to arrest me for bad perspective. He chuckled when I showed him the “Department of Art” traffic cones. We talked about the neighborhood. Then the radio on his belt alerted him to a bicycle theft incident in progress. He got into his car and sped off, siren wailing.

A huge man in a ripped t-shirt, stopped in the crosswalk and yelled “HEY!” He kept on yelling “HEY!” again and again at no one in particular. Everyone ignored him.

I drew the lines of the composition with a bristle brush and burnt sienna. I washed in the big tones with transparent color. Then I got down to details, balancing my hand on a mahl stick.


We faced all the usual questions: “Do you mind if I look?” “Are you a professional artist?” “Do you do this for a living?” “Are you going to sell that picture?” “How much does it cost?”

The answer that leads to the fewest followup questions: “I’m unemployed, and my therapist said I should learn to paint.”

A group of women and children gathered shyly behind us. Most of the children had never seen an artist painting outdoors before. We pointed to the subject we were painting. Most of them couldn’t connect what we were painting with the scene in front of them.

A green signboard once said “D’ALLEOS IMPORTED SPECIALTIES,” but the letters had fallen off, leaving a palimpsest in the faded paint. An old man said that when Mr. D’Alleo owned it, the bread had “body and soul.”

Dalleo’s had both a Pepsi and a Coca Cola sign, both faded. Since each company distributes exclusively, evidently the deli has survived several allegiances.

After we finished painting, we crossed the street to Caffe Aurora for pignole nut cookies, biscotti, coffee, and Italian ices.

Monday, June 16, 2008

Warthin Museum

Last evening, Jeanette and I attended the opening of a new exhibition called “The Evolution of the Natural Sciences” in the Warthin Museum of Geology and Natural History on the campus of Vassar College in Poughkeepsie, New York.

The museum’s collection of fossils, minerals, and curios is laid out in antique glass cases, giving it the steampunk feel of a Victorian cabinet museum. Curator Rick Jones decided to feature a few luminaries from the old days of dinosaur hunting, including Mary Anning, Edward Drinker Cope, Othniel Charles Marsh, and Charles Knight, pictured here.

There are two original paintings from Dinotopia: A Land Apart from Time to represent Knight’s influence on the current generation. As Mr. Jones put it, “Charles Knight is the most influential paleoartist that America has produced.” It was an added pleasure that Rhoda Kalt, Knight’s granddaughter, was also in attendance for the opening.

If you happen to be visiting Vassar, don't miss the Francis Lehman Loeb art museum, which, in addition to its strong collection of Hudson River School paintings, is borrowing eight major works (including F. Church's glorious Parthenon) from the Metropolitan Museum during the Met's refurbishment of the American Wing. More about the Loeb art museum, link. The Wartin natural history museum is open Monday through Friday in the month of June, and by appointment (845.437-5540). More on the Warthin Museum, link.

Sunday, June 15, 2008

Mucha and Emotional Color

Color doesn’t have be used in a literal or naturalistic way. Alphonse Mucha (1860-1939), best known for his Art Nouveau posters, was also an accomplished oil painter with an unusually evocative sense of color.

His color conception for “Madonna of the Lilies” (1905) changed from the sketch stage (left) to the finished painting. In the sketch, which appears to be created from his imagination, he keeps everything pale and warm, with reds, greens, and oranges giving a spiritual glow to the figures.

In the finished work, painted over a careful drawing after the benefit of models, the background stays high-key, but relatively cool. The warm notes and dark accents are reserved for the figures and for the areas of the picture nearer the earth.

He restricts the values mainly in the light or middle range, avoiding strong tonal contrasts and large expanses of dark. The adjacent tints take on a richness beyond reality. Mucha wrote in his “Lectures on Art,” (Academy Editions, London): “If we wish to add to the luminosity of a color, it is placed in a higher key.”

Above is one of his Slav Epic paintings. The color scheme is extremely disciplined, just pale blue and orange. The dreamy feeling comes from the light value range, reserving the darks for the upper left and lower right of the composition.

Mucha’s artistic choices serve emotion rather than illusionism for its own sake. “The expression of beauty is by emotion,” he said. “The person who can communicate his emotions to the soul of the other is the artist.”

Alphonse Mucha Foundation website, link.
Article in Lines and Colors, link.

Saturday, June 14, 2008

Caustics

A drinking glass or a water-filled vase can act like a lens to focus light rays into curving projected lines or spots of light. This field of optics is called “caustics.” The word connotes the sense of burning, reminiscent of the way that a light from a lens can burn.

In this arrangement, set up in the morning sunlight, note the difference in the shapes of the caustic projections. Essentially, the objects are imperfect lenses. Also, check out the rich assortment of internal highlights in the glass, and the cast shadows of both forms. The cast shadow of the surface of water itself is visible as the dark shape within the cast shadow at lower left.


I’ve mentioned the digital imaging pioneer Henrik Jensen before. He has produced some striking images of caustic effects, like this cognac glass…


…and this one of a transparent ball. Artists, scientists, and mathematicians in the field of digital imaging have been breaking new ground in understanding this realm of optics, and their work inspires all of us traditional painters.

The hard thing to capture with any digital simulation is the quality found in Nature of infinite surface variation and complex interactivity of light, which causes unexpected nuances like that array of internal highlights.


Caustics are also at play when sunlight is refracted by a gently undulating water surface. The waves act like lenses. They focus a network of dancing lines on objects below the surface—like this Dunkleosteus from Dinotopia: The World Beneath.


Note the chromatic effects on the borders of the caustics above. Keep in mind that underwater caustic effects don’t occur much deeper than 20 or 30 feet. It would look wrong to include them in a deep-sea picture.

Dr. Jensen’s website, with explanations, link.
A 3D digital scene before and after caustics, link.

Friday, June 13, 2008

Area-By-Area Painting

Almost every painting teacher will tell you to establish the big overall statement right away.

The idea is to loosely block in the whole picture immediately, ignoring detail. Scrub some tone over the whole canvas. Later on you can fine-tune the nuances of color and value and add the small touches, like the petals on the rose. This “overall approach” is a sensible way to work, but it’s not the only way to work.

This anonymous, undated, and unfinished figure study was produced by the school of Ingres using an unusual method called "area-by-area" painting.

The artist proceeded in essentially two steps. First, the main lines and landmarks were carefully drawn with a brush. Then the painting was taken directly to finished effect at the first statement, proceeding across the canvas one area at a time.

Here’s a plein-air study of Mount Katahdin by Frederic Church. He worked over a natural-toned paperboard, probably sealed with shellac. He began with an exact drawing of the mountain silhouette. The sky was painted next, very thinly, stippled and blended with the end of a big (probably badger-hair) brush. Then he rendered the delicate construction of the mountain and far shore using semi-opaque oils. He worked from top to bottom, left to right, like a human ink-jet printer.

In this unfinished study, Church captured the rocky coast of Maine in a similar way. On the right, you can see traces of his preliminary—and very precise—pencil drawing.

My suggestion is to follow what your painting teacher says while you’re in the classroom, but next time you’re painting from life on your own time, give this method a try and see if you like the results.

It’s not as hard as it looks. And it’s fast. The trick is to take your time getting the drawing right before you start in with paint, and then mix and render each area with full awareness of its relationship to other values.

What matters is not the method but the result.

Thursday, June 12, 2008

Doorway Light

This 8x10-inch oil study of an Irish hearth was painted on two consecutive mornings in a cottage in County Kerry, Ireland. The cool light from the open doorway and an adjacent window casts soft warm shadows to the right of the black stovepipe, the china dogs, and the plastic bucket of turf.

You can tell the light comes from side-by-side light sources because of the twin highlights on the teakettle, water pot, and stovepipe. The light was brightest on the left of the scene, at the place where the owner apparently replaced a broken black tile with a white tile.

Wednesday, June 11, 2008

Art By Committee: Hulking Dude

Wednesday is a chance for us all to goof off a little with a game called "Art By Committee.” Your job is to illustrate an actual excerpt taken more or less at random from a big stack of science fiction manuscripts I have kicking around the studio from my work as a paperback cover artist.

This week’s quote seems straightforward enough: “Wildon, a big hulking dude, went into a crouch and threw out his arms, ready to catch the running Jeremy.” No two imaginations took it the same direction, but each solution makes complete sense.

Be sure to scroll down to the end of the post for next week’s challenge.




…and the one from the original Art By Committee book.

Here’s the challenge for next Wednesday:
Have fun! Please scale your JPG to around 700 pixels across. Title it with your name, send it to: jgurneyart(at)yahoo.com, subject line ABC, and let me know in your email if you want me to link to your blog or website. Please have your entries in by next Tuesday at 10:00 AM Eastern Time USA.

Tuesday, June 10, 2008

Depth and Edges

When one object sits in front of another in space, what happens at the location where the contours intersect each other? How can you create a sense of space between the object in front and the one behind?

Here’s a gray rectangle in front of a cross of white lines. All the edges are kept sharp. The result is that the rectangle appears to be sitting atop the lines, but it lies on the same two-dimensional plane.

If you soften all the edges of the white lines to an equal degree, the gray rectangle floats upward. This is how a camera would interpret a situation where two objects are on separate focal planes, assuming the camera was focused on the rectangle.

Instead, if you soften the edges of the rectangle and keep the white lines sharp, it looks like the camera has shifted its focus to the back plane. This creates a perceptual ambiguity. The gray rectangle still comes forward because it is superimposed, but the white lines also want to come forward because they’re in sharper focus.

Neither of these “photographic” interpretations is quite like the way we perceive things with our eyes. We don’t really see an entire area of a scene out of focus; we’re constantly adjusting our focus to create a sharp impression of the world.


Here is how I would suggest we might simulate our visual perception in paint. It’s similar to the photographic mode in #2, but this time the lines get progressively more out of focus as they pass behind the rectangle.

In addition, the vertical white line is softened to a greater degree than the horizontal line. The reason for this is the stereoscopic effect of our eyes. Since our eyes are set on a horizontal plane, vertical lines seen behind an object are doubled (and effectively blurred) more than the horizontal bars. You demonstrate this if you focus both of your eyes on your fingertip held in front of the mullions of a window.

In this detail from a Bouguereau, the contour of the farther leg of the angel figure is softened where it crosses the nearer leg.

In another of his paintings, the landscape lines are softened where they intersect the woman’s lower back.

And finally in this detail from a Waterhouse, the line of the green hill and the blue dress are softer where they cross behind the heads.

Monday, June 9, 2008

Interview Portrait

Patrick Lendino never said a word about his war experiences until one day when we sat down and I started drawing his portrait.

Then the memories started tumbling out, one after another. He began to describe his training in the Eighth Air Force, and how he became a pilot of a B-17. I struggled to draw his likeness and to capture his quotes, both of which were equally valuable as a memory of his life.

Sunday, June 8, 2008

The Green Problem

In the paperback book field, there’s an old saying that “green covers don’t sell.” Costume designers have told me that green often looks ghastly in stage lighting. Gallery directors have reported that clients aren’t attracted to paintings with a strong greenish cast, especially if the color tends toward a bright yellow-green.

Evidently this was an issue even 150 years ago, when Asher B. Durand commented on “the common prejudice against green.” “I can well understand why it has been denounced by the Artist,” he wrote, “for no other color is attended with equal embarrassments.”

Here is a plein-air study where I tried to match the colors that I saw without modifying them.

There is no doubt that green is a fundamentally important color. Many modern psychologists and color theorists regard it as a primary, not a secondary, color: indeed green is a primary color of light. The word “green” is occurs more than twice as frequently as “yellow” in modern written English. The human eye is more sensitive to green wavelengths than to any other; that’s one reason why flourescent lights are designed to give a peak output in the green range.

So why do many painters recoil in horror from certain pigments, like permanent green light or pthalo yellow green? Why do many artists banish green from the palette?

A friend of mine who is a landscape painter said, “One thing I've been noticing in doing studies outdoors recently is that the greens are very intense, often a pale acid yellow green in the grass when sunlight is on it. Yet I rarely see that intensity in past plein studies except perhaps in the later Impressionists. I think there must have been a conscious decision by artists to mute the greens they see in Nature towards gray or a warm brown. I find myself tempted to impose upon nature a more moderate interpretation of color sensation based on some aesthetic / psychological convention.”

For those of us trying to be true to Nature, should we be faithful to our mistress, or is there a legitimate reason to neutralize the strength of green? Why should there be a problem with green? What has been your experience?

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One more bit of trivia: 79% of the flags of Europe contain red, while only 16% contain green.
Thanks to Handprint.com for the color diagram.

Saturday, June 7, 2008

Annular Highlights

When you look into the maze of bare branches of a forest in winter, you’re only seeing a fraction of the detail. The light illuminates only a few of these ice-covered branches. Most of them blend invisibly into the general gray.

Which of the smaller branches and twigs catch the highlights? Only those that are oriented 90 degrees to the direction of the light. The illuminated twigs align into concentric rings around the centerpoint of the light source; hence I’ve named the phenomenon “annular highlights.”

The three arrows in the photo are placed perpendicular to the illuminated twigs. If you follow the arrows, they lead to the location of the sun.

Annular highlights can also be observed in the scratches of a well-used stainless steel surface, like this cookie sheet and pot lid. Look for it in the window of a passenger train on a late afternoon, in a cobweb on a dewy morning, in a cornfield lit by a setting sun, or on telephone wires on a rainy night.

Friday, June 6, 2008

Covering the Coronation

When King George V was crowned on June 22, 1911, newspapers from around the world sent their best artist-correspondents to cover the event.

Joseph Pennell was one of them. He recalled the scene in the artist’s gallery: “In the midst, behind a six-foot canvas, was Tuxen, the Danish Court Painter; at his side the English Academic Bacon in black skullcap, making a six-inch sketch for the official British picture, and Gillot, the official French Painter…Every paper in the world with a London correspondent was represented.”

There were a couple of photographers and a film cameraman there as well, but they were hardly a footnote.

The artists had to work fast to complete their drawings for the next day’s paper. “Every artist had a little notebook which he took out of the pocket of his frock coat and made dots in, putting down his top hat to do so.”

Pennell suspected his contemporaries of cribbing likenesses from pre-existing photos, or from starting their drawings ahead of time. The top artists had been to the rehearsals and told where the dignitaries would stand. But the actual event varied from the plan: “Few of the people stood where they should, fewer wore the robes they ought, and no one did as they were told.”

Pennell himself brought four large sheets of lithographic paper, chalks, and a drawing board. He also brought his lunch, knowing the ceremony would last many hours. He insisted on a position in the organ loft, giving him a sweeping view of the scene, including the peers, peeresses, ambassadors, envoys, dukes, princes, major generals, and admirals (detail, below).


It took him about three hours to establish the perspective of the interior of Westiminster Hall, two or three more hours more to draw the figures on the location, (though they were constantly changing positions), and another hour or two back at the studio to finish it up. His drawing was reproduced in the London Daily Chronicle on June 23, 1911.

“Today,” said Pennell in 1925, “There is no one capable of doing drawings like them save us. Illustration has gone to the dogs—or photography.”
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Quotes are from: Adventures of an Illustrator, by Joseph Pennell, 1925

Thursday, June 5, 2008

Water-Soluble Pencil

There are several makers of water-soluble pencils. This one is called a “Derwent Inktense/Ink Black” and it gives you a rich, intense black when blended with water.

I used a Kuretake brushpen to deliver the water. It has a hollow plastic handle that you can fill with water. I worked back and forth with the water and the pencil, adding lines over wet washes or washes over lines, working my way from lighter to darker washes.

I used another brushpen with colored ink for a few spots of color. These tools fit easily in a pocket, and they’re convenient if you happen to be in a museum or a classroom and you don’t want to break out a whole watercolor set.

My subject is Keith Gunderson, a dedicated plein air painter and teacher, whose website is called “Classic Realism.

Wednesday, June 4, 2008

Art By Committee: Indescribable

Thanks to BoingBoing for yesterday's post about my recent unexpected visitors.

Wednesday is the day for our group sketch game called "Art By Committee,” where you illustrate an actual excerpt from a science fiction manuscript.

This week’s quote left some scope for interpretation, especially for the “indescribable” figures. As always, you came up with great ideas, and no two of you took it in the same direction.

Andrew Wales

Todd Norris

...and the drawing in the original sketchbook.

Thanks to you all. I'm amazed every time with what you come up with. Here’s the challenge for next Wednesday: “Wildon, a big hulking dude, went into a crouch and threw out his arms, ready to catch the running Jeremy.”Please scale your JPG to around 700 pixels across. Title it with your name, send it to: jgurneyart(at)yahoo.com, subject line ABC, and let me know in your email if you want me to link to your blog or website (even if you told me before). Please have your entries in by next Tuesday at noon.
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P.S. Thanks to Simon Owens of Bloggasm for the nice writeup about the recent Unexpected Visitors.

Tuesday, June 3, 2008

Schematic Maquette

Dinotopia: The World Beneath contains several views of Waterfall City, including this overview.

The challenge for me as a designer was how to keep the city visually consistent when it appears in various angles. To do this, I built a schematic maquette out of gray-painted styrofoam.

In a schematic maquette, you don’t have to sculpt every single building, just a few characteristic geometric forms. By looking at photos of those representative forms as you do your drawing, you can add details and multiply them into the full city.


The real benefit of such a schematic maquette is that you can swing it around at any angle and see how the light plays on it. This kind of model is a great help for entertainment designers or sequential artists who need to imagine a complex form consistently from a variety of angles.

Monday, June 2, 2008

Millbrook Paint Out

The weatherman warned of torrential rains and lightning. Ah, a perfect day for painting.


The weatherman was right. Clouds converged on the village of Millbrook for the 5th Annual Millbrook Paint-Out, and nearly 40 artists from five states attended this plein-air painting event. Each of us started a painting in the morning, and the wet paintings were auctioned at 5:00 the same day.

Jeanette set up under the hatchback of Trusty Rusty, but her watercolor washes just wouldn’t dry.
Garin Baker didn’t have an umbrella. He got most of his work done before the showers arrived, but his palette ended up a half-inch deep in water.

I was caught in the downpour. The two umbrellas, each on its own C-stand, kept the rain off the painting, but a cold stream headed down my neck. When the wind picked up I had to put my foot on the stands to keep them from tipping over.

Here’s the motif: the Farmer’s Market. The first photo shows how it looked in the morning when we arrived. The second shows how it looked when I was finishing up the painting. I was attracted by the variety of white triangular shapes, and the clustering versus blank areas.

I laid in the drawing with burnt sienna and a bristle brush over a color-tinted oil-primed 11x14 canvas. Corrections are easy with a paint rag.

The horizontal line at my index finger is the eye level, the most important line in the layin, even if it is not visible in the scene itself.

The foundation of the color scheme was venetian red and terre verte, two powerfully opaque pigments with weird tinting properties. I dipped into other tube colors here and there, but tried to paint almost everything with greenish and reddish harmonies in three or four premixed values.

This premixing is a huge timesaver for a complex motif, and it lends unity to the color scheme. The painting is almost entirely in bristle filberts.

I started with the sky and worked back-to-front. This was a miscalculation because I assumed that the market scene would be there when I got around to the foreground. But to my surprise they started folding up the tents at noon.

I hurried to capture the remaining tents and tables. The payoff was painting the reflections in the wet pavement. Note how the color of the puddle changes from green (under the trees) to red (under the truck and brick building).


Finally I painted the telephone wires using a watercolor round guided by the mahl stick. Here’s the final painting after about five hours.