Tuesday, March 23, 2010

Drawing

Introduction

Drawing is a visual art that makes use of any number of drawing instruments to mark a two-dimensional medium. Common instruments include graphite pencils, pen and ink, inked brushes, wax color pencils, crayons, charcoals, chalk, pastels, markers, stylus, or various metals like silverpoint. An artist who practices or works in drawing may be referred to as a draftsman or draughtsman.

A small amount of material is released onto the two dimensional medium which leaves a visible mark—the process is similar to that of painting. The most common support for drawing is paper, although other materials such as cardboard, plastic, leather, canvas and board, may be used. Temporary drawings may be made on a blackboard or whiteboard, or indeed almost anything. The medium has also become popular as a means of public expression via graffiti art, because of the easy availability of permanent markers.

Definition

Drawing is a form of visual expression and is one of the major forms within the visual arts. There are a number of subcategories of drawing, including cartooning. Certain drawing methods or approaches, such as "doodling" and other informal kinds of drawing such as drawing in the fog a shower leaves on a bathroom mirror, or the surrealist method of "entoptic graphomania", in which dots are made at the sites of impurities in a blank sheet of paper, and lines are then made between the dots, may or may not be considered as part of "drawing" as a "fine art."

The word 'drawing' is used as both a verb and a noun:

Drawing (verb) is the act of making marks on a surface so as to create an image, form or shape.
The produced image is also called a drawing (noun). A quick, unrefined drawing may be defined as a sketch.
In simplistic terms, drawing is distinct from painting, perhaps more so in the Western view; East Asian art, which generally only uses brushes, has historically made less distinction between the two. Critics may praise a painter's ability to draw well, meaning that the shapes, especially of the human body, are well-articulated, or a drawing may be considered painterly.

Adding confusion, similar tools and media may be used in both tasks. Dry media normally associated with drawing, such as chalk, may be used in pastel painting. Drawing may be done with liquid media applied with brushes or pens. Similar supports likewise can serve both: painting generally involves the application of liquid paint onto prepared canvas or panels, but sometimes an underdrawing is drawn first on that same support. Drawing is generally concerned with the marking of lines and areas of tone onto paper, but watercolor painting uses a paper support. Traditional drawings were monochrome, or at least had little colour,[1] while modern coloured-pencil drawings may approach or cross the boundary (if there is one) between drawing and painting.

The term drawing suggests a process and intent that is distinct from the traditional act of painting. While there are drawings that are finished artworks, drawing is often exploratory, with considerable emphasis on observation, problem solving and composition, often as a means of preparation for a painting. In contrast, traditional painting is often a means of execution or finishing an artwork. It is fair to note that modern painters often incorporate methods of drawing in their painting process, particularly in the early stages of a painting.

History

André Masson. Automatic Drawing. 1924. Ink on paper, 23.5 x 20.6 cm. Museum of Modern Art, New York.People have made rock and cave drawings since prehistoric times. By the 12th-13th centuries AD, monks were preparing illuminated manuscripts on vellum or parchment in monasteries throughout Europe were using lead styli to draw lines for their writings and for the outlines for their illuminations. Soon artists generally were using silver to make drawings and underdrawings. Initially they used and re-used wooden tablets with prepared ground for these drawings. When paper became generally available from the 14th century onwards, artists' drawings, both preparatory studies and finished works, became increasingly common[edit] Media
The medium is the means by which ink, pigment, or color are delivered onto the drawing surface. Most drawing media are either dry (e.g. graphite, charcoal, pastels, Conté, silverpoint), or water-based (marker, pen and ink).[2] Watercolor pencils can be used dry like ordinary pencil, then moistened with a wet brush to get various painterly effects. Very rarely, artists have drawn with (usually decoded) invisible ink. Metalpoint drawing usually employs either of two metals: silver or lead.[3] More rarely used are gold, platinum, copper, brass, bronze and tinpoint.

Applying media

Almost all draughtsmen use their hands and fingers to apply the media, with the exception of some handicapped individuals who draw with their mouth or feet.

Prior to working on an image, the artist will likely want to gain an understanding of how the various media will work. The different drawing implements can be tried on practice sheets in order to determine value and texture, and how to apply the implement in order to produce various effects.

The stroke of the drawing implement can be used to control the appearance of the image. Ink drawings typically use hatching, which consists of groups of parallel lines.[4] Cross-hatching uses hatching in two or more different directions to create a darker tone. Broken hatching, or lines with intermittent breaks, is used to form lighter tones, and by controlling the density of the breaks a graduation of tone can be achieved. Stippling, uses dots to produce tone, texture or shade.

Sketch drawings use similar techniques, although with pencils and drawing sticks continuous variations in tone can be achieved. For best results the lines in a sketch are typically drawn to follow the contour curves of the surface, thus producing a depth effect. When drawing hair, the lines of the sketch follow the direction of the hair growth.

Typically a drawing will be filled in based on which hand the artist favors. A right-handed artist will want to draw from left to right in order to avoid smearing the image. Sometimes the artist will want to leave a section of the image blank while filling in the remainder of the picture. A frisket can be used for this purpose. The shape of the area to be preserved is cut out of the frisket, and the resulting shape is then applied to the drawing surface. This will protect the surface from receiving any stray marks before it is ready to be filled in.

Another method to preserve a section of the image is to apply a spray-on fixative to the surface. This will hold loose material more firmly to the sheet and prevent it from smearing. However the fixative spray typically uses chemicals that can negatively affect the respiratory system, so it should be employed in a well-ventilated area such as outdoors.

Materials

Paper comes in a variety of different sizes and qualities, ranging from newspaper grade up to high quality and relatively expensive paper sold as individual sheets.[5] Papers can vary in texture, hue, acidity, and strength when wet. Smooth paper is good for rendering fine detail, but a more "toothy" paper will hold the drawing material better. Thus a coarser material is useful for producing deeper contrast.

Newsprint and typing paper may be useful for practice and rough sketches. Tracing paper is used to experiment over a half-finished drawing, and to transfer a design from one sheet to another. Cartridge paper is the basic type of drawing paper sold in pads. Bristol board and even heavier acid-free boards, frequently with smooth finishes, are used for drawing fine detail and do not distort when wet media (ink, washes) are applied. Vellum is extremely smooth and suitable for very fine detail. Coldpressed watercolor paper may be favored for ink drawing due to its texture.

Acid-free, archival quality paper keeps its color and texture far longer than wood pulp based paper such as newsprint, which will turn yellow and become brittle much sooner.

The basic tools are a drawing board or table, pencil sharpener and eraser, and for ink drawing, blotting paper. Other tools used are circle compass, ruler, and set square. Fixative is used to prevent pencil and crayon marks from smudging. Drafting tape is used to secure paper to drawing surface, and also to mask an area to keep it free of accidental marks sprayed or spattered materials and washes. An easel or slanted table is used to keep the drawing surface in a suitable position, which is generally more horizontal than the position used in painting.

Tone

Line drawing in sanguine by Leonardo da VinciShading is the technique of varying the tonal values on the paper to represent the shade of the material as well as the placement of the shadows. Careful attention to reflected light, shadows, and highlights can result in a very realistic rendition of the image.

Blending uses an implement to soften or spread the original drawing strokes. Blending is most easily done with a medium that does not immediately fix itself, such as graphite, chalk, or charcoal, although freshly applied ink can be smudged, wet or dry, for some effects. For shading and blending, the artist can use a blending stump, tissue, a kneaded eraser, a fingertip, or any combination of them. A piece of chamois is useful for creating smooth textures, and for removing material to lighten the tone. Continuous tone can be achieved with graphite on a smooth surface without blending, but the technique is laborious, involving small circular or oval strokes with a somewhat blunt point.

Shading techniques that also introduce texture to the drawing include hatching and stippling. There are a number of other methods for producing texture in the picture: in addition to choosing a suitable paper, the type of drawing material and the drawing technique will result in different textures. Texture can be made to appear more realistic when it is drawn next to a contrasting texture; a coarse texture will be more obvious when placed next to a smoothly blended area. A similar effect can be achieved by drawing different tones in close proximity; a light edge next to a dark background will stand out to the eye, and almost appear to float above the surface.

Layout

Measuring the dimensions of a subject while blocking in the drawing is an important step in producing a realistic rendition of the subject. Tools such as a compass can be used to measure the angles of different sides. These angles can be reproduced on the drawing surface and then rechecked to make sure they are accurate. Another form of measurement is to compare the relative sizes of different parts of the subject with each other. A finger placed at a point along the drawing implement can be used to compare that dimension with other parts of the image. A ruler can be used both as a straightedge and a device to compute proportions.

When attempting to draw a complicated shape such as a human figure, it is helpful at first to represent the form with a set of primitive shapes. Almost any form can be represented by some combination of the cube, sphere, cylinder, and cone. Once these basic shapes have been assembled into a likeness, then the drawing can be refined into a more accurate and polished form. The lines of the primitive shapes are removed and replaced by the final likeness. Drawing the underlying construction is a fundamental skill for representational art and is taught in many books and schools, as its correct application will resolve most uncertainties about smaller details and make the final image look self-consistent.

A more refined art of figure drawing relies upon the artist possessing a deep understanding of anatomy and the human proportions. A trained artist is familiar with the skeleton structure, joint location, muscle placement, tendon movement, and how the different parts work together during movement. This allows the artist to render more natural poses that do not appear artificially stiff. The artist is also familiar with how the proportions vary depending on the age of the subject, particularly when drawing a portrait.

Perspective

Linear perspective is a method of portraying objects on a flat surface so that the dimensions shrink with distance. The parallel, straight edges of any object, whether a building or a table, will follow lines that eventually converge at infinity. Typically this point of convergence will be along the horizon, as buildings are built level with the flat surface. When multiple structures are aligned with each other, such as buildings along a street, the horizontal tops and bottoms of the structures will all typically converge at a vanishing point.

Two point perspective drawing.When both the fronts and sides of a building are drawn, then the parallel lines forming a side converge at a second point along the horizon (which may be off the drawing paper.) This is a "two-point perspective". Converging the vertical lines to a point in the sky then produces a "three-point perspective".

Depth can also be portrayed by several techniques in addition to the perspective approach above. Objects of similar size should appear ever smaller the further they are from the viewer. Thus the back wheel of a cart will appear slightly smaller than the front wheel. Depth can be portrayed through the use of texture. As the texture of an object gets further away it becomes more compressed and busy, taking on an entirely different character than if it was close. Depth can also be portrayed by reducing the amount of contrast of more distant objects, and also by making the colors more pale. This will reproduce the effect of atmospheric haze, and cause the eye to focus primarily on objects drawn in the foreground.

rb

Friday, March 12, 2010

Acrylic Painting

Steps



Acrylic Painting Techniques

Acrylic painting techniques are different styles of manipulating and working with polymer-based acrylic paints. Acrylics differ from oil paints in that they have shorter drying times (as little as 10 minutes) and are soluble in water. These types of paint eliminate the need for turpentine and gesso, and can be applied directly onto canvas. Aside from painting with concentrated color paints, acrylics can also be watered down to a consistency that can be poured or used for glazes.

1. Preventing paint from drying out

Acrylics are often preferred because they dry faster on canvas than oil paints due to their polymer base. Unfortunately, this also affects the time acrylics stay moist. A trick to keep paints from drying out is to spray a light mist of water over them occasionally.[1]Moisture-retaining palettes also increase acrylic paint drying time, and can be substituted with a shallow container, a sheet of grease proof paper, and piece of wet watercolor paper.[2]

2. Creating fluid paints

Fluid paints can be used like watercolors, or for glazing and washes. To create a more fluid texture, water is added to the paint. The ratio of paint to water depends on how thick the glaze is expected to be. An opaque glaze or paint consists of more paint than water, and will give a more solid color.

A translucent glaze or paint will be the opposite, consisting of slightly more water than the opaque version, and will have a smoother texture. Translucent glazes show more of the colors underneath the paint compared to opaque glazes.

Artist Keri Ippolito advises that the paint should be watered no more than 50 percent or the paint will not stick to the canvas.[3] After mixing the paints, allow time for the air bubbles to rise to the surface. This will be crucial in many techniques, especially in pouring paints.

3. Painting glazes

Acrylic paint glazes are often used to create more depthin an image. These types of paints are light enough when brushed onto canvas to show the layers underneath. This technique is commonly used to create more realistic images. Light colored glazes also have softening effects when painted over dark or bright images.

It can be difficult to get the right liquid consistency for glazes. Golden Acrylic Glazes simplify the mixing process by arriving ready-to-use in the bottle. Created to give the artist more time to work with the paints without having to worry about the paint to water ratio, this brand of glaze is commonly used in place of mixing acrylic glazes by hand.[4]

It is best to wait for each layer to dry thoroughly before apply another coat. This will prevent the paint from smearing or leaving unwanted smudge marks. After the application of several layers, rubbing alcoholcan be brushed or sprayed on to reveal colors from earlier layers.[5]

4. Pouring paints

Pour painting is an innovative way to use acrylic paints to create an art piece. Instead of using tools like brushes or knives to create a piece of art, fluid paints can be poured directly onto the surface and the canvas tilted to move the paint around. Pouring paints allow for the colors to blend naturally as they come in contact with each other.

This technique can be done either one color at a time, or with multiple paints to maximize color blending. Pour painting can also be done with oil paints, but because those paints take a longer time to dry, the piece would have to be done over an extended period of time, or with wet paints.[3]

rb

Art History

Art history has historically been understood as the academic study of objects of art in their historical development and stylistic contexts, i.e. genre design, format, and look.[1] This includes the "major" arts of painting, sculpture, and architecture as well as the "minor" arts of ceramics, furniture, and other decorative objects.

As a term, Art history (also history of art) encompasses several methods of studying the visual arts; in common usage referring to works of art and architecture. Aspects of the discipline overlap. As the art historian Ernst Gombrich once observed, "the field of art history [is] much like Caesar's Gaul divided in three parts inhabited by three different, though not necessarily hostile tribes: (i) the connoisseurs (ii) the critics and (iii) the academic art historians. [2]

As a discipline, art history is distinguished from art criticism, which is concerned with establishing a relative artistic value upon individual works with respect to others of comparable style, or sanctioning an entire style or movement; and art theory or "philosophy of art, which is concerned with the fundamental nature of art. One branch of this area of study is aesthetics which includes investigating the enigma of the sublime and determining the essence of beauty.

Technically, art history is not these things, because the art historian uses historical method to answer the questions: How did the artist come to create the work?, Who were the patrons?, Who were his or her teachers?, Who was the audience?, Who were his or her disciples?, What historical forces shaped the artist's oeuvre, and How did he or she and the creation, in turn, affect the course of artistic, political, and social events?

Art history is not only a biographical endeavor. Art historians often root their studies in the close scrutiny of individual objects. They thus attempt to answer in historically specific ways, questions such as: What are key features of this style?, What meaning did this object convey?, How does it function visually?, Did the artist meet their goals well?, What symbols are involved?, and Does it function discursively?

The historical backbone of the discipline is a celebratory chronology of beautiful creations commissioned by public or religious bodies or wealthy individuals in western Europe. Such a "canon" remains prominent, as indicated by the selection of objects present in art history textbooks. Nonetheless, since the 20th century there has been an effort to re-define the discipline to be more inclusive of non-Western art, art made by women, and vernacular creativity.

rb