Drawing is a visual art that uses an instrument to mark paper or another two-dimensional surface. The instrument might be pencils, crayons, pens with inks, brushes with paints, or combinations of these, and in more modern times, computer styluses with graphics tablets.
A pastel is an art medium that consist of powdered pigment and a binder. It can exist in a variety of forms, including a stick, a square, a pebble, or a pan of color, though other forms are possible. The pigments used in pastels are similar to those used to produce some other colored visual arts media, such as oil paints; the binder is of a neutral hue and low saturation. The color effect of pastels is closer to the natural dry pigments than that of any other process.
Purple is a color similar in appearance to violet light. In the RYB color model historically used in the arts, purple is a secondary color created by combining red and blue pigments. In the CMYK color model used in modern printing, purple is made by combining magenta pigment with either cyan pigment, black pigment, or both. In the RGB color model used in computer and television screens, purple is created by mixing red and blue light in order to create colors that appear similar to violet light.
In art, chiaroscuro is the use of strong contrasts between light and dark, usually bold contrasts affecting a whole composition. It is also a technical term used by artists and art historians for the use of contrasts of light to achieve a sense of volume in modelling three-dimensional objects and figures. Similar effects in cinema, and black and white and low-key photography, are also called chiaroscuro.
Sfumato is a painting technique for softening the transition between colours, mimicking an area beyond what the human eye is focusing on, or the out-of-focus plane. It is one of the canonical painting modes of the Renaissance. Leonardo da Vinci was the most prominent practitioner of sfumato, based on his research in optics and human vision, and his experimentation with the camera obscura. He introduced it and implemented it in many of his works, including the Virgin of the Rocks and in his famous painting of the Mona Lisa. He described sfumato as "without lines or borders, in the manner of smoke".
The Ben Day process is a printing and photoengraving technique for producing areas of gray or various colors by using fine patterns of ink on the paper. It was developed in 1879 by illustrator and printer Benjamin Henry Day Jr.. The process is commonly described in terms of Ben Day dots, but other shapes can be used, such as parallel lines or textures.
Shading refers to the depiction of depth perception in 3D models or illustrations by varying the level of darkness. Shading tries to approximate local behavior of light on the object's surface and is not to be confused with techniques of adding shadows, such as shadow mapping or shadow volumes, which fall under global behavior of light.
Cel shading or toon shading is a type of non-photorealistic rendering designed to make 3-D computer graphics appear to be flat by using less shading color instead of a shade gradient or tints and shades. A cel shader is often used to mimic the style of a comic book or cartoon and/or give the render a characteristic paper-like texture. There are similar techniques that can make an image look like a sketch, an oil painting or an ink painting. The name comes from cels, clear sheets of acetate which were painted on for use in traditional 2D animation.
Non-photorealistic rendering (NPR) is an area of computer graphics that focuses on enabling a wide variety of expressive styles for digital art, in contrast to traditional computer graphics, which focuses on photorealism. NPR is inspired by other artistic modes such as painting, drawing, technical illustration, and animated cartoons. NPR has appeared in movies and video games in the form of cel-shaded animation as well as in scientific visualization, architectural illustration and experimental animation.
Hatching is an artistic technique used to create tonal or shading effects by drawing closely spaced parallel lines. When lines are placed at an angle to one another, it is called cross-hatching. Hatching is also sometimes used to encode colours in monochromatic representations of colour images, particularly in heraldry.
Apollodorus Skiagraphos was an influential Ancient Greek painter of the 5th century BC whose work has since been entirely lost. Apollodorus left a technique behind known as skiagraphia, a way to easily produce shadow, that affected the works not only of his contemporaries but also of later generations. This shading technique uses hatched areas to give the illusion of both shadow and volume.
Line engraving is a term for engraved images printed on paper to be used as prints or illustrations. The term is mainly used in connection with 18th- or 19th-century commercial illustrations for magazines and books or reproductions of paintings. It is not a technical term in printmaking, and can cover a variety of techniques, giving similar results.
3D rendering is the 3D computer graphics process of converting 3D models into 2D images on a computer. 3D renders may include photorealistic effects or non-photorealistic styles.
White-ground technique is a style of white ancient Greek pottery and the painting in which figures appear on a white background. It developed in the region of Attica, dated to about 500 BC. It was especially associated with vases made for ritual and funerary use, if only because the painted surface was more fragile than in the other main techniques of black-figure and red-figure vase painting. Nevertheless, a wide range of subjects are depicted.
Terrain cartography or relief mapping is the depiction of the shape of the surface of the Earth on a map, using one or more of several techniques that have been developed. Terrain or relief is an essential aspect of physical geography, and as such its portrayal presents a central problem in cartographic design, and more recently geographic information systems and geovisualization.
Giulio Bonasone was an Italian painter and engraver born in Bologna. He possibly studied painting under Lorenzo Sabbatini, and painted a Purgatory for the church of San Stefano, but all his paintings have been lost. He is better known as an engraver and is believed to have trained with Marcantonio Raimondi. He worked mainly in Mantua, Rome and Venice and with great success, producing etchings and engravings after the old masters and his own designs. He signed his plates B., I.B., Julio Bonaso, Julio Bonasone, Juli Bonasonis, Julio Bolognese Bonahso.
The visual arts are art forms such as painting, drawing, printmaking, sculpture, ceramics, photography, video, filmmaking, comics, design, crafts, and architecture. Many artistic disciplines, such as performing arts, conceptual art, and textile arts, also involve aspects of the visual arts as well as arts of other types. Also included within the visual arts are the applied arts, such as industrial design, graphic design, fashion design, interior design, and decorative art.
In the visual arts, gradation is the technique of gradually transitioning from one hue to another, or from one shade to another, or one texture to another. Space, distance, atmosphere, volume, and curved or rounded forms are some of the visual effects created with gradation.
Caroline Townsend (1854-1889) was an American designer and embroiderer, best known for her design work at Tiffany & Co. and as the principal designer at Associated Artists.
Chitra or citra is an Indian genre of art that includes painting, sketch and any art form of delineation. The earliest mention of the term Chitra in the context of painting or picture is found in some of the ancient Sanskrit texts of Hinduism and Pali texts of Buddhism.
Detail from the vergina tomb, given as an example of skiagraphia by Britannica. The original article points to the hatched, colored lines of the drapery to create shade.
