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Shading alters the colors of faces in a 3D model based on the angle of the surface to a light source or light sources. The first image below has the faces of the box rendered, but all in the same color. Edge lines have been rendered here as well which makes the image easier to see. The second image is the same model rendered without edge lines.
One of the most fundamental elements of art is the line. An important feature of a line is that it indicates the edge of a two-dimensional (flat) shape or a three-dimensional form. A shape can be indicated by means of an outline, and a three-dimensional form can be indicated by contour lines. [1]
A line drawing is the most direct means of expression. This type of drawing without shading or lightness, is usually the first to be attempted by an artist.It may be somewhat limited in effect, yet it conveys dimension, movement, structure and mood; it can also suggest texture to some extent.
He described sfumato as "without lines or borders, in the manner of smoke". [ 1 ] According to the theory of the art historian Marcia B. Hall , [ 2 ] which has gained considerable acceptance, [ 3 ] sfumato is one of four modes of painting colours available to Italian High Renaissance painters, along with cangiante , chiaroscuro , and unione .
Christ at Rest, by Hans Holbein the Younger, 1519, a chiaroscuro drawing using pen, ink, and brush, washes, white heightening, on ochre prepared paper. The term chiaroscuro originated during the Renaissance as drawing on coloured paper, where the artist worked from the paper's base tone toward light using white gouache, and toward dark using ink, bodycolour or watercolour.
There are different types of lines artists may use, including, actual, implied, vertical, horizontal, diagonal and contour lines, which all have different functions. [3] Lines are also situational elements, requiring the viewer to have knowledge of the physical world in order to understand their flexibility, rigidity, synthetic nature, or life. [1]
In color theory, a tint is a mixture of a color with white, which increases lightness, while a shade is a mixture with black, which increases darkness. Both processes affect the resulting color mixture's relative saturation. A tone is produced either by mixing a color with gray, or by both tinting and shading. [1]
Ligne claire (French: [liɲ(ə) klɛːʁ]; Dutch: klare lijn [ˈklaːrə ˈlɛin]; both meaning "clear line") is a style of drawing created and pioneered by Hergé, the Belgian cartoonist and creator of The Adventures of Tintin. It uses clear strong lines sometimes of varied width and no hatching, while contrast is downplayed as well. Cast ...