Stucco in the context of "Baroque architecture"

Relief is a sculptural method in which the sculpted pieces remain attached to a solid background of the same material. The term relief is from the Latin verb relevare, to raise (lit. 'to lift back'). To create a sculpture in relief is to give the impression that the sculpted material has been raised above the background plane. When a relief is carved into a flat surface of stone (relief sculpture) or wood (relief carving), the field is actually lowered, leaving the unsculpted areas seeming higher. The approach requires chiselling away of the background, which can be time-intensive. On the other hand, a relief saves forming the rear of a subject, and is less fragile and more securely fixed than a sculpture in the round, especially one of a standing figure where the ankles are a potential weak point, particularly in stone. In other materials such as metal, clay, plaster stucco, ceramics or papier-mâché the form can be simply added to or raised up from the background. Monumental bronze reliefs are made by casting.

There are different degrees of relief depending on the degree of projection of the sculpted form from the field, for which the Italian and French terms are still sometimes used in English. The full range includes high relief (Italian alto-rilievo, French haut-relief), where more than 50% of the depth is shown and there may be undercut areas, mid-relief (Italian mezzo-rilievo), low relief (Italian basso-rilievo, French: bas-relief), and shallow-relief (Italian rilievo schiacciato), where the plane is only very slightly lower than the sculpted elements. There is also sunk relief, which was mainly restricted to Ancient Egypt (see below). However, the distinction between high relief and low relief is the clearest and most important, and these two are generally the only terms used to discuss most work.

Plaster is a building material used for the protective or decorative coating of walls and ceilings and for moulding and casting decorative elements. In English, "plaster" usually means a material used for the interiors of buildings, while "render" commonly refers to external applications. The term stucco refers to plasterwork that is worked in some way to produce relief decoration, rather than flat surfaces.

The most common types of plaster mainly contain either gypsum, lime, or cement, but all work in a similar way. The plaster is manufactured as a dry powder and is mixed with water to form a stiff but workable paste immediately before it is applied to the surface. The reaction with water liberates heat through crystallization and the hydrated plaster then hardens.

The Kunsthistorisches Museum Wien (lit. "Vienna Museum of Art History", often referred to as the "Museum of Fine Arts, Vienna") is an art museum in Vienna, Austria. Housed in its festive palatial building on the Vienna Ring Road, it is crowned with an octagonal dome. The term Kunsthistorisches Museum applies to both the institution and the main building. It is the largest art museum in the country.

Emperor Franz Joseph I of Austria-Hungary opened the facility around 1891 at the same time as the Natural History Museum, Vienna which has a similar design and is directly across Maria-Theresien-Platz. The two buildings were constructed between 1871 and 1891 according to plans by Gottfried Semper and Baron Karl von Hasenauer. The emperor commissioned the two Ringstraße museums to create a suitable home for the Habsburgs' formidable art collection and to make it accessible to the general public. The buildings are rectangular, with symmetrical Renaissance Revival façades of sandstone lined with large arched windows on the main levels and topped with octagonal domes 60 metres (200 ft) high. The interiors of the museums are lavishly decorated with marble, stucco ornamentation, gold-leaf, and murals. The grand stairway features paintings by Gustav Klimt, Ernst Klimt, Franz Matsch, Hans Makart and Mihály Munkácsy.

The Bull-Leaping Fresco is the most completely restored of several stucco panels originally sited on the upper-story portion of the east wall of the Minoan palace at Knossos in Crete. It shows a bull-leaping scene. Although they were frescos, they were painted on stucco relief scenes. They were difficult to produce. The artist had to manage not only the altitude of the panel but also the simultaneous molding and painting of fresh stucco. The panels, therefore, do not represent the formative stages of the technique. In Minoan chronology, their polychrome hues – white, pale red, dark red, blue, black – exclude them from the Early Minoan (EM) and early Middle Minoan (MM) Periods. They are, in other words, instances of the "mature art" created no earlier than MM III. The flakes of the destroyed panels fell to the ground from the upper story during the destruction of the palace, probably by earthquake, in Late Minoan (LM) II. By that time the east stairwell, near which they fell, was disused, being partly ruinous.

The subject is common in Minoan art, one of a number depicting the handling of bulls. Arthur Evans, Keeper of the Ashmolean Museum, owner of the palace and director of excavation, presents the topic in Chapter III of his monumental work on Knossos and Minoan Civilization, Palace of Minos. There he calls the several frescos "The Taureador Frescos."

In architecture and decorative art, ornament is decoration used to embellish parts of a building or object. Large figurative elements such as monumental sculpture and their equivalents in decorative art are excluded from the term; most ornaments do not include human figures, and if present they are small compared to the overall scale. Architectural ornament can be carved from stone, wood or precious metals, formed with plaster or clay, or painted or impressed onto a surface as applied ornament; in other applied arts the main material of the object, or a different one such as paint or vitreous enamel may be used.

A wide variety of decorative styles and motifs have been developed for architecture and the applied arts, including pottery, furniture, metalwork. In textiles, wallpaper and other objects where the decoration may be the main justification for its existence, the terms pattern or design are more likely to be used. The vast range of motifs used in ornament draw from geometrical shapes and patterns, plants, and human and animal figures. Across Eurasia and the Mediterranean world there has been a rich and linked tradition of plant-based ornament for over three thousand years; traditional ornament from other parts of the world typically relies more on geometrical and animal motifs. The inspiration for the patterns usually lies in the nature that surrounds the people in the region. Many nomadic tribes in Central Asia had many animalistic motifs before the penetration of Islam in the region.

Portland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty grout. It was developed from other types of hydraulic lime in England in the early 19th century by Joseph Aspdin, and is usually made from limestone. It is a fine powder, produced by heating limestone and clay minerals in a kiln to form clinker, and then grinding the clinker with the addition of several percent (often around 5%) gypsum. Several types of Portland cement are available. The most common, historically called ordinary Portland cement (OPC), is grey, but white Portland cement is also available.

The cement was so named by Joseph Aspdin, who obtained a patent for it in 1824, because, once hardened, it resembled the fine, pale limestone known as Portland stone, quarried from the windswept cliffs of the Isle of Portland in Dorset. Portland stone was prized for centuries in British architecture and used in iconic structures such as St Paul's Cathedral and the British Museum.

Plasterwork is construction or ornamentation done with plaster, such as a layer of plaster on an interior or exterior wall structure, or plaster decorative moldings on ceilings or walls. This is also sometimes called pargeting. The process of creating plasterwork, called plastering or rendering, has been used in building construction for centuries. For the art history of three-dimensional plaster, see stucco.