Showing posts with label early renaissance. Show all posts
Showing posts with label early renaissance. Show all posts

Wednesday

Annunciations, Nativities, and Altars in the Early Renaissance Pisano, Martini, Duccio, Giotto and Lorenzetti


Some of the images you will encounter in this section you have already looked at.  The purpose of this next section is to teach you how the iconography that began in earlier periods is used but also transformed over time.  At the end of this essay you will be presnted with a work of art that you will have to interpret according to the rules that you have learned.
 

 
For this reason, the sections concerning each works formal aspects will be deemphasized.
There are two terms you will need to understand in depth for this next section, nativity and annunciation.
According to the Brittanica,
a nativity is a theme in Christian art depicting the newborn Jesus with the Virgin Mary and other figures, following descriptions of Christ's birth in the Gospels and Apocrypha. An old and popular subject with a complicated iconography, the Nativity was first represented in the 4th century, carved on Early Christian Roman sarcophagi, and was later included with other scenes from Christ's life in monumental decoration of Early Christian basilicas. It was a very important subject for Early Christian art from the 5th century because it emphasized the reality of the incarnation of Christ and the validity of the Virgin's newly established (431) title of Theotokos (Mother of God). The Early Christian version of the Nativity shows the Virgin seated, to emphasize that the birth was painless, and the Child, in swaddling clothes, lying in a manger. The two, along with an ox and an ass, are under the roof of a barnlike stable. Usually one or two shepherds, who symbolize the revelation of Christ to the Jews, and often also the Magi--Wise Men from the East who symbolize his revelation to the Gentiles--appear in the scene. By the 6th century another version of the Nativity appeared in Syria, becoming universal in the East throughout the Middle Ages, and in Italy until the late 14th century. It differs from the earlier version, which was retained with some modifications in northwestern Europe, mainly in that it shows the Virgin lying on a mattress, thus ignoring the concept of the painless birth. The Child is again in swaddling clothes in a manger, and the ox and ass are retained, but the stable is located not in a barn but in a cave, as was the custom in Palestine. Angels usually hover above the cave, and Joseph sits outside it. The Magi and the shepherds are often present. The announcement of the miraculous birth to the shepherds by an angel and the journey of the Magi may be depicted simultaneously in the background. Another simultaneous representation--the bathing of the Child by two midwives in the foreground--became standard in Eastern Nativities. It probably derives from classical scenes of the birth of the god Dionysus and is a prefiguration of Christ's Baptism. As the emblem of a major feast day, this version of the Nativity figured prominently, usually in its most complicated form, in the liturgical iconography of Byzantine church decoration.
In the late 14th century an abrupt transformation of the iconography of the Nativity occurred throughout western Europe, including Italy, and a second major version came into being. This was essentially an adoration; the most important change is that the Virgin is depicted no longer in the aftermath of childbirth but kneeling before the Child, who is now nude and luminous and lies not in a manger but on the ground on a pile of straw or a fold of the Virgin's mantle. Often Joseph, too, kneels in adoration. Most of the other details, except the ox and ass, are omitted, especially in earlier works. This version, which seems to have spread from Italy, follows in detail--and in fact almost certainly originates with--an account of a vision by St. Bridget of Sweden, an influential 14th-century mystic. Universally adopted in western Europe by the 15th century, this version is widely depicted in altarpieces and other devotional works.
In the Renaissance, angels reappeared, and the scene was often combined with the adoration of the shepherds, which had recently developed as a separate theme. The midwives were still included occasionally. In the 16th century the Council of Trent outlawed the midwives, the ox and ass, and the bathing of Christ as ignoble, apocryphal, and theologically unsound (the bathing of the Child is inconsistent with the doctrine of a pure and supernatural birth).
In the 17th century a more prosaic representation reappeared, with the Virgin again reclining and holding the Child. After the 17th century, despite the decline of Christian religious art in general, the Nativity remained an important theme in the popular arts.
"Nativity."   Britannica 2001 Standard Edition CD-ROM.   Copyright © 1994-2001 Britannica.com Inc.   November 17, 2002.
According to the Brittanica,
the Annunciation in Christianity, the announcement by the angel Gabriel to the Virgin Mary that she would conceive a Son of the Holy Spirit to be called Jesus (Luke 1:26-38). The Feast of the Annunciation, one of the principal feasts of the Christian church, is celebrated on March 25 (Lady Day). The first authentic allusions to the feast (apart from the Gelasian and Gregorian sacramentaries, in both of which it is mentioned) are in acts of the Council of Toledo (656) and of the Trullan Council (692).
Because its significance is much more than narrative, the Annunciation had a particularly important place in the arts and church decoration of the early Christian and medieval periods and in the devotional art of the Renaissance and Baroque. Moreover, because, in Christian doctrine, the event coincides with the Incarnation of Christ, it also represents a prelude to the redemption of the world.
 "Annunciation."   Britannica 2001 Standard Edition CD-ROM.   Copyright © 1994-2001 Britannica.com Inc.   November 17, 2002.

 



Nicola Pisano. Nativity, 
detail of Baptistery Pulpit panel: Annunciation, 
Nativity and Annunciation to Shepherds 1259-60
Italian Gothic,
Form:  This is a relief carving.  The relief varies greatly in the height and or depth of each of the figures and objects.  In general the composition is fairly symmetrical yet it is very crowded and almost seems disorganized.  Most of the figures are placed in the foreground of the picture plane and the space created is not very illusionistic.  Space is created by placing the figures in the foreground lower in the picture plane.  In order to show the recession of space, the figures are layered and the placed in a vertical perspective.  The rendering of each of the figures is fairly naturalistic and the clothing, drapery and poses are somewhat reminiscent of carvings such as the this one from the Parthenon's pediment.  Several of the figures, such as the main one which depicts Mary and the child (Jesus) are repeated because several scenes are simultaneously being represented.  This kind of continuous narrative is common in Byzantine, Romanesque, Gothic and Renaissance art. 
Iconography:  This is a nativity scene that at first appears to take place in a manger but it also contains the baptism of Christ as well as the annunciation by the angel Gabriel.  The scenes are as follows, far left the angel Gabriel confronts Mary with his annunciation of the birth of Jesus. Mary pulls away towards the center of the scene.  In the upper right hand corner is a manger scene in which Jesus lies in his crib, at the far right are two of the wise men who are missing their heads.  The center of the scene Mary reclines in a pose very reminiscent of the Goddesses from Parthenon.  In the lower left foreground of the image is the baptism of Christ (note he's missing his head too.)

Duccio di Buoninsegna, The Nativity with the Prophets Isaiah and Ezekiel, 1308/1311
This panel in the National Gallery, Washington DC
Form: The rendering of each of the figures is fairly naturalistic and the clothing, drapery and poses are somewhat reminiscent of Nicola Pisano's Nativity, from the Baptistery Pulpit panel and carvings such from the Parthenon's pediment.  Several of the figures, such as the main one which depicts Mary and the child (Jesus) are repeated because several scenes are simultaneously being represented.  This kind of continuous narrative is common in Byzantine, Romanesque, Gothic and Renaissance art.  Iconography:  This is a nativity scene that at first appears to take place in a manger but it also contains the baptism of Christ as well.  The center of the scene Mary reclines in a pose very reminiscent of the Goddesses from Parthenon.  In the lower left foreground of the image is the baptism of Christ.
 
 
The figures that flank the main scene serve as a kind of framing device that also update the image and provide transitional figures that bridge the gap between Mary, Jesus and us.  The image of the saint in Catholic art and religious practice is one that symbolizes our possibilities.  The saints were normal people, who in their emulation of Christlike qualities show us what every person is capable of attaining.  When Catholics pray to them they are asking for the saint to intercede with God.  Basically ask God for a favor for us. Context:  It is easy to guess that Duccio probably used, almost directly Nicola Pisano's Nativity, from the Baptistery Pulpit panel as his schema.  This was not considered plagiarism by the Gothic artists but rather a compliment and a continuation of a time honored Byzantine tradition.  Her pose and drapery almost exactly mimic Nicola Pisano's Nativity, from the Baptistery Pulpit panel but the drapery is somewhat less lifelike.  This also demonstrates the desire to continue older visual traditions and to not always have a revolutionary and innovative stylistic break with earlier traditions.
 

Duccio di Buoninsegna, Annunciation 1308-11
Tempera on wood, 43 x 44 cm 
National Gallery, London
predella Maesta Altar
Form: Duccio's Annunciation scene shares some of the same formal devices that the other works we've looked at.  There is no deep space but there is an attempt to relate the figures to the architectural environment they reside in.  There is a consistent sense of chiaroscuro that unifies the picture plane.  The drapery of the figures is beginning to demonstrate a shift of light and shadow (chiaroscuro) that we see in Giotto's work and the drapery begins to actually feel as if the anatomy beneath is revealed in how the drapery hangs on the figures.  The composition is still symmetrical but there is an out door in door feeling to the image.  Mary is framed within an arch like structure. Iconography:  The increased illusionism of the image is symbolic of some of the growing humanistic trends in the Catholic faith that is further evidenced by the philosophies of St. Francis.
Both Mary and Gabriel are dressed in a cross between Byzantine clothing and Roman style togas indicating a  historicism about them.  The colors used for the clothing are expensive and so is the gold leaf in  the background.  Both the figures heads are adorned with halos that are ornamneted with punchwork.
Mary is holding either a book of hours or a Bible.  Brittanica describes a book of hours as a,
devotional book widely popular in the later Middle Ages. The book of hours began to appear in the 13th century, containing prayers to be said at the canonical hours in honour of the Virgin Mary. The growing demand for smaller such books for family and individual use created a prayerbook style enormously popular among the wealthy. The demand for the books was crucial to the development of Gothic illumination. These lavishly decorated texts, of small dimensions, varied in content according to their patrons' desires.
She pulls away slightly from Gabriel as he announces that she will be having the son of god demonstrating a very human response and therefore humanistic perspective.  Above her head flying in through the combination Gothic/Triumphal arch is the holy spirit which is represented as a dove.  This is also a reference to the story of Noah as a typology.  The architectural structure is designed to look like both a Church and a triumphal arch.  This is representative of Mary's house as the house of God and a place of worship.  The scepter Gabriel holds represents triumph. Between the two figures is a vessel filled with lilies.  The vessel refers to Mary's role as the "vessel of God" and the white flowers refer to her purity.  In fact there is a whole iconographic system devoted to flowers and Mary.


Simone Martini, Annunciation, 1333 10'x8' 
(central panel)  Lippo Memmi, (Wings)
Frame 19th C Anonymous
Florence Uffizi
Italian Late Gothic/Early Renaissance
Form: Martini's Annunciation scene shares some of the same formal devices that the other works we've looked at too.  There is no deep space whatsoever in this image because of the use of gold leaf for the background.  The drapery of the figures is beginning to demonstrate chiaroscuro and anatomical structure but in some ways less so then some of the other images.  The composition is perfectly symmetrical and the figures are placed beneath each of the three pointed Gothic style arches. Iconography:  As in the other works the  increased illusionism of the image is symbolic of some of the growing humanistic trends in the Catholic faith that is further evidenced by the philosophies of St. Francis.
Both Mary and Gabriel are dressed in a cross between Byzantine clothing and Roman style togas indicating a  historicism about them.  The colors used for the clothing are expensive and so is the gold leaf in  the background.  Both the figures heads are adorned with halos that are ornamneted with punchwork.  However, there is a bit more in terms of their ornamnetation.  The checked pattern on Gabriel's gown may actually be a reference to either a popular style of fabric design or a type of fabric produced by the patron.  In this way it is a form of "product placement."  Mary is holding a book of hours and like Duccio's painting she pulls away slightly from Gabriel as he makes his announcement. 
A possible reference to the literacy of the wealthy may be the words inscribed in the gold leaf which emenate from Gabriel's mouth, "Hail favored one!  The Lord is with you."
Plant forms figure powerfully into this kind of image.  Between the two figures is a vessel filled with lilies.  The vessel refers to Mary's role as the "vessel of God" and the white flowers refer to her purity.  In fact there is a whole iconographic system devoted to flowers and Mary.  The olive branch is a reference to the story of Noah in which the dove brings an olive branch back to the ark and this is a symbol of God's renewed covenant with Noah.  The wreath of olives around Gabriel's head is a similar refernce both also refers to the Greek and Roman traditions of honoring heroes and athletes with the laurel wreaths on there head as an impromptu crown.  It may also be a reference to Christ's crwon of thorns. The central panel of the altar is in a tripartite division (three part).  This is possibly a reference to the holy trinity which is "in Christian doctrine, the unity of Father, Son, and Holy Spirit as three persons in one Godhead," according to the Brittanica.  It also designed to look like the arches in a Gothic church.  In the central bay of the image is an image of the holy spirit surrounded by a series of cherubim in the form of sparrows.  The sparrow comes up quite a bit as a symbol of the word of God and as cherubim.

 

 
Pietro Lorenzetti, The Birth of the Virgin, from Siena Cathedral, 1342.
Tempera and gold on wood, frame partially replaced
6'x5' Museo dell'Opera del Duomo, Siena
Synthesis:  This image represents the birth of Mary.  On the next worksheet you will be asked to pull together all the main ideas that you have learned in the section above and explain how the iconography and form are descended from the images above. Make sure you read Stokstad's analysis of this image!

 
 
 
 
 
 
 
 
 
 
 
 
 

Friday

How Linear Perspective Works (A Renaissance approach)



Perspective Webster's dictionary defines "perspective" in a variety of ways:
2 a: the interrelation in which a subject or its parts are mentally viewed ; also: point of view b: the capacity to view things in their true relations or relative importance
So perspective is really just a point of view.  This section will deal with a variety of points of view.  Visual systems such a linear perspective will be discussed as well theological, humanistic and neoplatonic points of view.

Cimabue, Madonna Enthroned c1280
Late Gothic Italian 

space,  picture plane, and overlapping Paintings on a flat two dimensional space employ different ways of creating space.  Before the Renaissance period artists looked at a picture as a kind of window.  The front of this window is sometimes referred to as the picture plane.  As you look through the front of the plane, like a window, you will see things that are in the foreground or front of the picture, then in the middle ground, and finally the background.  In this painting in particular, this artist, named Cimabue, is trying to create the illusion of space by layering or overlapping one figure in front of another, however, you can see that he really does not create the illusion of space or deep space too convincingly.


Giotto, St Francis Giving his Mantle to a Poor Man, c1305
Late Gothic sometimes his style is considered 
Proto Renaissance or Early Renaissance
Giotto, a student of Cimabue, is one of the first Italian artists to really try to create some sort of space in the picture plane.  If you look at this painting you can see that he has claerly created a foreground, where the men and the donkey are, a mid-ground, where the mountains start to rise, and then a background where the buildings are.  He creates this illusion in several ways.  One way is that he overlaps or layers the figures.  The other is that he uses dimunution.  Things in the background diminish, or get smaller.  Giotto creates space is that he changes the size of things as they move back in space.  The buildings and mountains are much smaller than the people are in the foreground.  This difference in size is refered to as a size scale relationship
The building in this image and the others like it are rendered with the illusion of space called intuitive perspective and isometric perspective.  (This kind of perspective is not as illusionistic as the linear perspective that is invented during the Renaissance around 1400 CE.)

Different artists and different cultures through out time have tried their hand at creating the illusion of space or realism in their art.
 

 

Fowling Scene from the tomb of Nebamun
1400 BCE - 1350 BCE
Thebes, Egypt
Dynasty 18
According to the Brittanica: Perspective is a method of graphically depicting three-dimensional objects and spatial relationships on a two-dimensional plane or on a plane that is shallower than the original (for example, in flat relief).
Perceptual methods of representing space and volume, which render them as seen at a particular time and from a fixed position and are characteristic of Chinese and most Western painting since the Renaissance, are in contrast to conceptual methods. Pictures drawn by young children and primitives (untrained artists), many paintings of cultures such as ancient Egypt and Crete, India, Islam, and pre-Renaissance Europe, as well as the paintings of many modern artists, depict objects and surroundings independently of one another--as they are known to be, rather than as they are seen to be--and from the directions that best present their most characteristic features. Many Egyptian and Cretan paintings and drawings, for example, show the head and legs of a figure in profile, while the eye and torso are shown frontally . This system produces not the illusion of depth but the sense that objects and their surroundings have been compressed within a shallow space behind the picture plane.


Leonardo da Vinci, Last Supper, 1495-7 Milan, 
Santa Maria delle Grazie 
According to the Brittanica:
In Western art, illusions of perceptual volume and space are generally created by use of the linear perspective system, based on the observations that objects appear to the eye to shrink and parallel lines and planes to converge to infinitely distant vanishing points as they recede in space from the viewer. Parallel lines in spatial recession will appear to converge on a single vanishing point, called one-point perspective. Perceptual space and volume may be simulated on the picture plane by variations on this basic principle, differing according to the number and location of the vanishing points. Instead of one-point (or central) perspective, the artist may use, for instance, angular (or oblique) perspective, which employs two vanishing points.

Linear perspective is a mathematical system for creating the illusion of space and distance on a flat surface. The system originated in Florence, Italy in the early 1400s. The artist and architect Brunelleschi demonstrated its principles, but another architect and writer, Leon Battista Alberti was first to write down rules of linear perspective for artists to follow. Leonardo da Vinci probably learned Alberti's system while serving as an apprentice to the artist Verrocchio in Florence. To use linear perspective an artist must first imagine the picture surface as an "open window" through which to see the painted world. Straight lines are then drawn on the canvas to represent the horizon and "visual rays" connecting the viewer's eye to a point in the distance.
The horizon line runs across the canvas at the eye level of the viewer. The horizon line is where the sky appears to meet the ground.
The vanishing point should be located near the center of the horizon line. The vanishing point is where all parallel lines (orthogonals) that run towards the horizon line appear to come together like train tracks in the distance.
Orthogonal lines are "visual rays" helping the viewer's eye to connect points around the edges of the canvas to the vanishing point. An artist uses them to align the edges of walls and paving stones.
Please visit this site for more of an explanation.
http://psych.hanover.edu/Krantz/art/linear.html

 

Masaccio, Trinity with Donors, c1425 - 8?
fresco in the 
Church of Santa Maria Novella, Florence
21'x10'5"
According to the Brittanica:
The early European artist used a perspective that was an individual interpretation of what he saw rather than a fixed mechanical method. At the beginning of the Italian Renaissance, early in the 15th century, the mathematical laws of perspective were discovered by the architect Filippo Brunelleschi, who worked out some of the basic principles, including the concept of the vanishing point, which had been known to the Greeks and Romans but had been lost. These principles were applied in painting by Masaccio (as in his "Trinity" fresco in Santa Maria Novella, Florence; c. 1427), who within a short period brought about an entirely new approach in painting. A style was soon developed using configurations of architectural exteriors and interiors as the background for religious paintings, which thereby acquired the illusion of great spatial depth. In his seminal Della pittura (1436; On Painting), Leon Battista Alberti codified, especially for painters, much of the practical work on the subject that had been carried out by earlier artists; he formulated, for example, the idea that "vision makes a triangle, and from this it is clear that a very distant quantity seems no larger than a point." Linear perspective dominated Western painting until the end of the 19th century, when Paul Cézanne flattened the conventional Renaissance picture space. The Cubists and other 20th-century painters abandoned the depiction of three-dimensional space altogether and hence had no need for linear perspective.
Linear perspective plays an important part in presentations of ideas for works by architects, engineers, landscape architects, and industrial designers, furnishing an opportunity to view the finished product before it is begun. Differing in principle from linear perspective and used by both Chinese and European painters, aerial perspective is a method of creating the illusion of depth by a modulation of color and tone. 

 
Dennis Hwang, a student from Stanford was so taken with the three dimensional quality of the image that he designed a virtual reality image that simulates another view of Masaccio's fresco. http://graphics.stanford.edu/courses/cs99d-98/online_projects.html

 


Masaccio, Trinity with Donors, c1425 - 8?
fresco in the Church of Santa Maria Novella, Florence
21'x10'5"
Form: This is a tremendous work of art.  The figures in the work are just slightly bigger than life size.  The overall composition of the works is symmetrical and the composition within the arch is based on a stable pyramidal form.  While not strictly in accordance with the rules of perspective, this form is a visual device that draws the eye back into the picture plane. The figures of God the Father, The Spirit (which is a Dove that doubles for God's collar) and the crucified Jesus are placed with a Roman triumphal arch complete with Pantheon like coffers and ionic columns on the edges.  Moving out of the arch on either side are two flattened pilasters (squared off half columns) that have corinthian capitals.
The work is executed in one point perspective with the horizon line placed right on the level of the first trompe l’oeil ledge at the viewer's eye level.   The figures representing the two donors or patrons are located on a ledge about six feet off the ground, just outside of the arch slightly above the viewer's point of view. Beneath the ledge/horizon line is a painted skeleton representing a tomb.
Iconography:  Symbolically speaking this image is packed with all kinds of different perspectives. 
The linear perspective is both a formal device, which creates space, and a way of including the viewer.  The fact that the use of linear perspective is used actually symbolizes that the real subject of the painting is not the Trinity but rather the Renaissance man's relationship to it.  This leads us to discuss the various themes that are hidden within the obvious meaning behind the fresco.
It's almost a shopping list of ideas. 
idealism
neoplatonism
humanism
theology
Overall, the fresco does represent a theological (religious) point of view.  More specifically it represents a unification of the Trinity as expressed in the Catholic Nicene Creed.
We believe in one God, the Father Almighty, maker of all things visible and invisible; and in one Lord Jesus Christ, the Son of God, the only-begotten of his Father, of the substance of the Father, God of God, Light of Light, very God of very God, begotten, not made, being of one substance with the Father.
The Brittanica refers to Masaccio's Trinity as "rational, human-scaled and human-centred, and inspired by the ancient world."  This statement illustrates that beyond a theological point of view, the naturalistic life-size scale and placement of the figures of God the Father, The Spirit, within a Roman triumphal arch complete with Pantheon like coffers and ionic columns on the edges, represents how the Renaissance person was framing their view of the world within a classicizing and humanistic point of view.  Jesus' body is idealized and he looks almost as if he is a Greek god.  God the Father looks like a Greek or Roman philosopher and these representations make reference to the new ideas concerning neoplatonism and humanism. The neoplatonic aspect, deals with the concept of humankind's ability to be perfected to an ideal state.  One that is more spiritual and mental than flesh.  The humanistic point of view deals with the concept that while humankind is spiritual it is also physical and emotional.  When the body of Christ is depicted as a real human's body, the artist is showing you a point of view based on a more human and possibly even fallible point of view of the world.  The perfectibility of man and the ideal conception of a what a perfect person should be is discussed in Mencher, Liaisons 109-112 Baldassare Castiglione (1478-1529) Il Cortegiano (The Courtier) Excerpts from "The First Book of the Courtier"  and William Shakespeare c1600 excerpts from Hamlet 115-117All of these points of view are pulled together in by the appearance and text above the skeleton.
Above the skeleton is inscribed, "What I was you are.  What I am, you will become."  This idea that we are to be reminded of our mortality and frailty is a reminder or a lesson referred to as a memento mori.  A literal reminder of death.  This them is taken up not just in the visual arts but also in literature and theatrical productions.  Read Mencher, Liaisons, William Shakespeare c1600 excerpts from Hamlet115-117 for another example.  What kinds of iconography to they both share?

Masaccio. Tribute Money, and Expulsion, fresco c1427 
Brancacci Chapel, Santa Maria del Carmine Florence, 
Italy, Italian Renaissance

Context: Masaccio. Tribute Money, and Expulsion, fresco c1427  are prime examples of many of the innovations that marked 15th century Italian art.  In addition to demonstrating all of the formal views concerning perspective, these frescoes also express all of the more philosophical points of view. According to the Brittanica: 
The Brancacci Chapel. Shortly after completing the Pisa Altarpiece, Masaccio began working on what was to be his masterpiece--the frescoes of the Brancacci Chapel (c. 1427) in the Florentine Church of Santa Maria del Carmine. He was commissioned to finish painting the chapel's scenes of the stories of St. Peter after Masolino (1383-1447) had abandoned the job, leaving only the vaults and several frescoes in the upper registers finished. Previously, Masaccio and Masolino were engaged in some sort of loose working relationship. They had already collaborated on a "Madonna and Child with St. Anne" (Uffizi Gallery, Florence) in which the style of Masaccio, who was the younger of the two, had a profound influence on that of Masolino. It has been suggested, but never proven, that both artists were jointly commissioned to paint the Brancacci Chapel. The question of which painter executed which frescoes in the chapel posed one of the most discussed artistic problems of the 19th and 20th centuries. It is now generally thought that Masaccio was responsible for the following sections: the "Expulsion of Adam and Eve" (or "Expulsion from Paradise"), "Baptism of the Neophytes," "The Tribute Money," "St. Peter Enthroned," "St. Peter Healing the Sick with His Shadow," "St. Peter Distributing Alms," and part of the "Resurrection of the Son of Theophilus." (A cleaning and restoration of the Brancacci Chapel frescoes in 1985-89 removed centuries of accumulated grime and revealed the frescoes' vivid original colours.)
There are other forms of perspective and one of them, which is slightly later development used by Masaccio but perfected by Leonardo is called aerial perspective.  According to the Brittanica,
 


Masaccio. Tribute Money, and Expulsion, fresco c1427 
Brancacci Chapel, Santa Maria del Carmine Florence, Italy, Italian Renaissance
Photo of atmospheric perspective 
Aerial perspective also called ATMOSPHERIC PERSPECTIVE, method of creating the illusion of depth, or recession, in a painting or drawing by modulating color to simulate changes effected by the atmosphere on the colours of things seen at a distance. Although the use of aerial perspective has been known since antiquity, Leonardo da Vinci first used the term aerial perspective in his Treatise on Painting, in which he wrote: "Colours become weaker in proportion to their distance from the person who is looking at them." It was later discovered that the presence in the atmosphere of moisture and of tiny particles of dust and similar material causes a scattering of light as it passes through them, the degree of scattering being dependent on the wavelength, which corresponds to the color, of the light. Because light of short wavelength--blue light--is scattered most, the colours of all distant dark objects tend toward blue; for example, distant mountains have a bluish cast. Light of long wavelength--red light--is scattered least; thus, distant bright objects appear redder because some of the blue is scattered and lost from the light by which they are seen. The intervening atmosphere between a viewer and, for example, distant mountains, creates other visual effects that can be mimicked by landscape painters. The atmosphere causes distant forms to have less distinct edges and outlines than forms near the viewer, and interior detail is similarly softened or blurred. Distant objects appear somewhat lighter than objects of similar tone lying closer at hand, and in general contrasts between light and shade appear less extreme at great distances. All these effects are more apparent at the base of a mountain than at its peak, since the density of the intervening atmosphere is greater at lower elevations.
 "aerial perspective."   Britannica 2001 Standard Edition CD-ROM.   Copyright © 1994-2001 Britannica.com Inc.   November 19, 2002. 

 


chiaroscuro
 
The picture plane is further unified by its value structure or shading.  This use of light and shadow to create a dramatic and consistent picture plane is  referred to as chiaroscuro. According to the Brittanica, 
 
Chiaroscuro (from Italian chiaro, "light"; scuro, "dark"),
technique employed in the visual arts to represent light and shadow as they define three-dimensional objects. Some evidence exists that ancient Greek and Roman artists used chiaroscuro effects, but in European painting the technique was first brought to its full potential by Leonardo da Vinci in the late 15th century in such paintings as his "Adoration of the Magi" (1481; Uffizi, Florence). Thereafter, chiaroscuro became a primary technique for many painters, and by the late 17th century the term was routinely used to describe any painting, drawing, or print that depends for its effect on an extensive gradation of light and darkness.
The scene depicted in "The Tribute Money" is consistently lit from the upper right and thus harmonizes with the actual lighting of the chapel, which comes from a window on the wall to the right of the fresco. The mountain background of the fresco is convincingly rendered using aerial perspective; an illusion of depth is created by successively lightening the tones of the more distant mountains, thereby simulating the changes effected by the atmosphere on the colours of distant objects. In "The Tribute Money," with its solid, anatomically convincing figures set in a clear, controlled space lit by a consistent fall of light, Masaccio decisively broke with the medieval conception of a picture as a world governed by different and arbitrary physical laws. Instead, he embraced the concept of a painting as a window behind which a continuation of the real world is to be found, with the same laws of space, light, form, and perspective that obtain in reality. This concept was to remain the basic idiom of Western painting for the next 450 years. 
 "chiaroscuro."  and "Masaccio"  Britannica 2001 Standard Edition CD-ROM.   Copyright © 1994-2001 Britannica.com Inc.   November 19, 2002. 
Although Giotto uses the technique somewhat in his paintings, notice how chiaroscuro is employed by Masaccio in the image on the left to make the figures appear more life like.  Also notice how Masaccio has become so involved with perspective that the halo atop the apostles heads are represented as an elliptical plates floating above rather than the more traditional circle of light that surrounds the heads of Giotto's and Cimabue's figures.
Context and Iconography:  In order to really understand this next section you need to know the story of the Tribute Money.  I think that what Masaccio was doing was following the lessons and type of sermons that would have been delivered in Church.  In these sermons, two stories concerning the testing of Jesus might have been combined.
 
Matthew Chapter 17


24  When they came to Capernaum, the collectors of the temple tax approached Peter and said, "Doesn't your teacher pay the temple tax?"


25 "Yes," he said. When he came into the house, before he had time to speak, Jesus asked him, "What is your opinion, Simon? From whom do the kings of the earth take tolls or census tax? From their subjects or from foreigners?"


26 When he said, "From foreigners," Jesus said to him, "Then the subjects are exempt.


27 But that we may not offend them, go to the sea, drop in a hook, and take the first fish that comes up. Open its mouth and you will find a coin worth twice the temple tax. Give that to them for me and for you."


Matthew Chapter 22


15  Then the Pharisees went off and plotted how they might entrap him in speech.


16 They sent their disciples to him, with the Herodians, saying, "Teacher, we know that you are a truthful man and that you teach the way of God in accordance with the truth. And you are not concerned with anyone's opinion, for you do not regard a person's status.


17 Tell us, then, what is your opinion: Is it lawful to pay the census tax to Caesar or not?"


18 Knowing their malice, Jesus said, "Why are you testing me, you hypocrites?


19 Show me the coin that pays the census tax." Then they handed him the Roman coin.


20 He said to them, "Whose image is this and whose inscription?"


21 They replied, "Caesar's." At that he said to them, "Then repay to Caesar what belongs to Caesar and to God what belongs to God."


22 When they heard this they were amazed, and leaving him they went away.
Masaccio also uses linear perspective to focus the attention on the viewer to the central figure of Christ.  In addition to this, he also places the heads of the apostles on the horizon line almost as if they were ducks in a shooting gallery. The Tribute Money is a continuous narrative.  Meaning that all the episodes of the story are united in one picture plane, such as we see in Nicola Pisano's Nativity, however in Masaccio's image the space makes more sense.  He also divides the story in three segments by using linear perspective.
The vanishing point also divides the picture plane in two sections.  On the left we see the mountains and natural world depicted almost as an infinite place.  To the right of the picture plane, and on the left hand of Jesus, the place where the damned are traditionally placed are the manmade structures of the city.
What this may represent is a concept that is expressed by the story of the Tribute Money as interpreted by St. Augustine 354-430.  According to the Brittanica, Augustine's, "adaptation of classical thought to Christian teaching created a theological system of great power and lasting influence. His numerous written works, the most important of which are Confessions and City of God, shaped the practice of biblical exegesis and helped lay the foundation for much of medieval and modern Christian thought."
St. Augustine, came up with a concept in which he viewed the universe and man's existence as divided in two worlds.  One was the City of Man which was temporary and fallible.  This is represented by the architecture and the place in which the tax collectors stands and collects what is "due Caesar."  The other world is the City of God which goes on forever and in which god will provide for the faithful.  This is where Peter pulls the coin from the fishes mouth. Stokstad points out that this story was also used as a propagandistic tool and a way of instilling patriotism for Florence and raising funds.
o Form:  These two nude figures are depicted in an anatomically accurate manner.  The angel of Michael above escorts them out of a triumphal arch and out into a seemingly featureless landscape.  The bodies are arranged in expressive poses. The torso of the angel floating above has been somewhat foreshortened.

Iconography:  The classical arch symbolizes the figures expulsion from a classical and ideal world: the Garden of Eden.  The expression of there bodies ties in with some of the ideas of human expression that one can see in monuments like the Parthenon's metopes and the Ara Pacis Augustae, except in this case, Masaccio uses the language of gesture to directly communicate what each one of these figures is feeling.  My Professor Broderick, from Lehman college, suggested that the figure of Adam is ashamed of himself in a more internal way and therefore hides his face from us and from God.  In contrast to this, Eve, is more superficially ashamed and hides her body.  For Broderick, this was an expression of male and female roles during the Renaissance.

 
 


Albrecht Durer, Alberti's Veil c1500
One way of dealing with perspective and foreshortening is to use mechanical devices to help the artist figure out how perspective works.  In the central image, Durer is using a device based on a treatise by Alberti.  This device allows the artist to abstract the image and chart the image into a series of squares.  This gives the artist many more reference points and allows him to check and measure the way things are foreshortened.
This machine is based on a device that artists used to make multiple copies of the same image or to enlarge a drawing accurately for placement on a wall or canvas.  This process is called "grid and transfer" or "squaring."  According to the Brittanica,
"Squaring" in painting, simple technique for transferring an image from one surface to another (and sometimes converting the image from one scale to another) by non mechanical means. The original work to be transferred is divided into a given number of squares; the same number of squares is then marked off-- with charcoal or some other easily removable medium--on the surface of the receiving area. The contents of each square of the original are then drawn in the corresponding square of the reproduction. The use of the grid ensures the accurate placement of images onto the reproduction. The Egyptians used squaring at least 5,000 years ago. It has been used to transfer cartoons onto murals, to transfer preparatory drawings onto canvas paintings, and to alter the scale of any work in the same media.
This process was used extensively during the Renaissance.  Check this out:
http://www.clevelandart.org/techniques/squaring.html also see this
http://www.aliciastrose.com/f-process.html
Two Point Perspective
 

1) To draw a simple shape in two point perspective you start with a single line across the picture plane called the horizon line.
 
3) Next, add converging lines from the top and bottom of the vertical line and draw two vertical lines which will become the back corners of the box.

2 Then add two vanishing points.  Place one at each end of the horizon line. Then draw a vertical line as big as you want the first box.
4) After erasing some of the horizon line (the part behind the box) it looks like a three dimensional form.
A page with a great example of two point perspective.
http://www.proviso.k12.il.us/EAST/GeometryWorld/2PER.HTM
 
 

Gustave Caillebotte, Paris a Rainy Day, 1877
French, Impressionism
Here's an example of two point perspective in a painting.  This painting actually has multiple points on the horizon line but I've traced most of the orthagonals to the two most dominant ones in the black and white illustration. Here's how Giotto kind of had it right.

 
Here's where the lines should have gone.

 
 
Giotto di Bondone, Virgin and Child Enthroned, 
(Ognissanti Altar,) c 1310. 
Tempera and gold on wood, 10'8"x6'8"
Galleria degli Uffizi, Florence
Cimabue, Virgin and Child Enthroned, 
from the Church of Santa Trinita, Florence
c 1280. Tempera and gold on wood, 12' 7"x7'4"
Galleria degli Uffizi, Florence


Masaccio, Madonna Enthroned, 1426,
oil on panel, 56x29"
London, National Gallery
These two works of art on the left are ones that you have already studied extensively.  Compare these two works to this one by Masaccio.  Think about and be prepared to relate the concepts you have just learned about to them.
Go back to the page where you first learned about them.
Ignore this question if you are in the ART 101 class.

hu.man.ism n (1832) 1 a: devotion to the humanities: literary culture b: the revival of classical letters, individualistic and critical spirit, and emphasis on secular concerns characteristic of the Renaissance 2: humanitarianism 3: a doctrine, attitude, or way of life centered on human interests or values; esp: a philosophy that usu. rejects supernaturalism and stresses an individual's dignity and worth and capacity for self-realization through reason -- hu.man.ist n or adj -- hu.man.is.tic adj -- hu.man.is.ti.cal.ly adv me.men.to mo.ri n, pl memento mori [L, remember that you must die] (1596): a reminder of mortality; esp: death's-head
me.men.to n, pl -tos or -toes [ME, fr. L, remember, imper. of meminisse to remember; akin to L ment-, mens mind--more at mind] (1580): something that serves to warn or remind; also: souvenir
Neo.pla.to.nism n (1845) 1: Platonism modified in later antiquity to accord with Aristotelian, post-Aristotelian, and oriental conceptions that conceives of the world as an emanation from an ultimate indivisible being with whom the soul is capable of being reunited in trance or ecstasy 2: a doctrine similar to ancient Neoplatonism -- Neo.pla.ton.ic adj -- Neo.pla.to.nist n
trompe l’oeil - (French: "deceive the eye"), in painting, the representation of an object with such verisimilitude as to deceive the viewer concerning the material reality of the object. This idea appealed to the ancient Greeks who were newly emancipated from the conventional stylizations of earlier art. Zeuxis, for example, reportedly painted such realistic grapes that birds tried to eat them. The technique was also popular with Roman muralists. Although trompe l’oeil never achieved the status of a major artistic aim, from the early Renaissance on, European painters occasionally fostered illusionism by painting false frames out of which the contents of a still life or portrait appeared to spill, or by creating window-like images suggesting actual openings in the wall or ceiling. (Brittanica)
Value Structure
Is the lightness or darkness of a color or shade.  Chiaroscuro and tenebrism both employ the use quick shifts of light and dark.
Value refers to the lightness or darkness of a color. It is a variable that can substantially alter a color's appearance, and as we will see later, it is also an important factor in achieving legibility with type and color. A hue changes in value when either white or black are added to it. A color with added white is called a tint (fig.7) ; a color with added black is called a shade (fig.8). Generally speaking, pure hues that are normally light in value (yellow, orange, green) make the best tints, white pure hues that are normally dark in value (red, blue, violet) make the most desirable shades. The palettes colors below shoes a spectrum of tints and shades based on the hues from the colors clearly shows that changes in value greatly expand color possibilities.
 
 

fig.7

fig.8

 

Sunday

Italian Art of the Late Gothic/Early to Mid Renaissance

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Transition from the Romanesque and Byzantine or "Greek Manner" to the Late Gothic and Renaissance Styles in Painting and Sculpture

 
 

Bonaventura Berlinghieri, 
"St. Francis Altarpiece" 1235 
tempera on wood 60' x 42' (approx. 5" x 3.5)
Byzantine Style (maniera greca) painted during the Gothic Period
Form: 
This altarpiece is painted in tempera on wood.  At five feet, the representation of St. Francis is depicted as nearly life-size.  Art of the Byzantine period largely influenced Italian Gothic art.  There is no depth to St. Francis.  He is two-dimensional and at the front of the picture plane.  His feet are not standing on the ground but seem to be floating just above it. Iconography: 
St. Francis is situated in the center of the painting - a position usually reserved for Christ or the Virgin Mary.  The identification with Christ is further enhanced with the clearly displayed stigmata on his raised blessing hand.  The three knots on his rope belt represent chastity, poverty and obedience. He is flanked on either side by angels and is surrounded by boxes containing major events in his life. 
Context:
This altarpiece was completed in 1235, less than ten years after Francis’ canonization. St. Francis taught that studying nature was a way to understand God and religious ideas should be discovered through human experience of the world.  These observations were partially responsible for the reflection on nature rather than most art of its time and were a prototype for new works.  This led to new observations of nature in art and the beginnings of scientific study.
Written by Annette Abbott
Context continued:  Many paintings like this have a rather Byzantine flavor or style to how they are painted.  This formulaic attempts to emulate Greek icons is what Vasari (an art hsitorian from the late 16th C) called the maniera greca in Italy.
According to the Brittanica
from Francis Of Assisi, Saint
The Franciscan rule of life. Although he was a layman, Francis began to preach to the townspeople. Disciples were attracted to him, and he composed a simple rule of life for them. In 1209, when the group of friars (as the mendicant disciples were called) numbered 12, they went to Rome to seek the approval of Pope Innocent III, who, although hesitant at first, gave his oral approbation to their rule of life. This event, which according to tradition occurred on April 16, marked the official founding of the Franciscan order. The friars, who were actually street preachers with no possessions of any kind and with only the Porziuncola as a center, preached and worked first in Umbria and then, as their numbers grew, in the rest of Italy.
The early Franciscan rule of life, which has not survived, set as the aim of the new life, "To follow the teachings of our Lord Jesus Christ and to walk in his footsteps." Probably no one in history has ever set himself so seriously as did Francis to imitate the life of Christ and to carry out so literally Christ's work in Christ's own way. This is the key to the character and spirit of St. Francis. To neglect this point is to show an unbalanced portrait of the saint as a lover of nature, a social worker, an itinerant preacher, and a lover of poverty.
Certainly the love of poverty is part of his spirit, and his contemporaries celebrated poverty either as his "lady," in the allegorical Sacrum Commercium (Eng. trans., Francis and His Lady Poverty, 1964), or as his "bride," in the fresco of Giotto in the lower church of S. Francesco at Assisi. It was not, however, mere external poverty he sought but the total denial of self (as in Letter of Paul to the Philippians 2:7).
He considered all nature as the mirror of God and as so many steps to God. He called all creatures his "brothers" and "sisters," and in his "Canticle of the Creatures" (less properly called by such names as the "Praises of Creatures" or the "Canticle of the Sun") he referred to "Brother Sun" and "Sister Moon," the wind and water, and even "Sister Death." His long and painful illnesses were nicknamed his sisters, and he begged pardon of "Brother Ass the body" for having unduly burdened him with his penances. Above all, his deep sense of brotherhood under God embraced his fellow men, for "he considered himself no friend of Christ if he did not cherish those for whom Christ died."
"The Franciscan rule of life.."   Britannica 2001 Standard Edition CD-ROM.   Copyright © 1994-2001 Britannica.com Inc.   November 16, 2002.
Context and Critical points of view:  The previous section is a a biography of St. Francis' life however, Francis represents a pivotal figure that represents the transition in thinking between the Gothic period and the Renaissance. Previous to the life of St. Francis, the Catholic Church was the sole source of information about God for the layman (every day non-clergy).  The Church interpreted, interceded and imposed a very clear point of view about God's teachings and was the sole source of biblical interpretation.  In fact, laymen were not even allowed to own a Bible, not that they could afford one since they were hand written and very expensive.  This point of view and religious/political system meant that everyday people could not actually "know" God for themselves and supported and maintained a point of view that one was born to a place on this earth that was unchangeable.
Francis' point of view that "To follow the teachings of our Lord Jesus Christ and to walk in his footsteps." Breaks with this tradition and demonstrates the beginning of a point of view in which the lay person could not only have a direct experience of God but also alter their behavior in accordance with their knowledge without needing to consult the Church for interpretation.  This is important and interesting because aside form the ideas exhibited in the teachings of Thomas Aquinas, this represents the beginning of a change in the way of thinking and the stirrings of individual critical thought.  The art that follows, after the Byzantine period and in the late Gothic and Early Renaissance exhibits a new and critical point of view of the world.
 
 

Virgin and Child, 
from the Auvergne region, France. c1150-1200
Oak with polychromy, height 31", 
Metropolitan Museum of Art
French Romanesque
Form:  This sculpture is both naturalistic and stylized.  The rendering of the face and hands was an attempt by the sculptor to represent convincing human forms however, the faces show no real expression and the bodies are completely covered with stylized drapery that conceals both figures bodies.  The child Jesus is not rendered as a child buy rather a stiff looking miniature adult.  The poses of both figures are stiff and fairly wooden but in the case of Mary, this is appropriate if you look at her role in  terms of the work's iconography. Iconography:  This image of Mary is significant in it's iconography because it is a perfect example of the Gothic depiction of Mary as the "Throne of Wisdom." Here she not only serves as a mother but as a platform or throne for her child.  Stokstad discusses her pose as regal and that her throne like posture is symbolic of the old testament references to the Lion Throne of King Solomon who is known as a wise and fair ruler and judge.  See Stokstad for a more complete discussion of the iconography.
Context:  Smaller and more portable works like this served as portable symbols of the faith.  The iconography associated with such symbols and the creation of smaller and more portable objects grows over time and has a strong influence on the creation of altars and other religious items in the Renaissance.  The works of such late Gothic/Early Renaissance artists such as Giotto and his teacher Cimabue are most certainly a product of this era although as we'll see they changed the schema considerably.
Cimabue, Virgin and Child Enthroned, 
from the Church of Santa Trinita, Florence
c 1280. Tempera and gold on wood, 12' 7"x7'4"
Galleria degli Uffizi, Florence
Byzantine Style (maniera greca) 
painted during the Gothic Period
Form:  The overall composition of this work is symmetrical.  The largest figures of Mary and Jesus are at the center of the composition and they are flanked by two rows of angels overlapped as if they are standing on bleachers.  Beneath the structure of the throne are several representations of older men with halos.  In order to create space, Cimabue uses the same convention of vertical perspective we saw in Pisano's pulpit.  The figures that are highest up in the picture plane are furthest back. This painting was rendered with tempera paint and gold leaf.  Tempera is a medium which is made from egg (sometimes just the yolk sometimes the whites) glue and ground up minerals that serve as pigment or colorant.  The egg actually glues or binds the pigments to the surface.  The paint is applied in small distinct brush strokes that show the brushwork when looked at closely. 
According to the Brittanica,
Tempera originally came from the verb temper--that is, "to bring to a desired consistency"; dry pigments are made usable by "tempering" them with a binding and adhesive vehicle. Such painting was distinguished from fresco painting, the colours for which contained no binder. Eventually, after the rise of oil painting, the word gained its present meaning. The standard tempera vehicle is a natural emulsion, egg yolk, thinned with water. Variants of this vehicle have been developed to widen its use. Among the man-made emulsions are those prepared with whole egg and linseed oil, with gum, and with wax.
The special ground for tempera painting is a rigid wood or wallboard panel coated with several thin layers of gesso, a white, smooth, fully absorbent preparation made of burnt gypsum (or chalk, plaster of Paris, or whiting) and hide (or parchment) glue. A few minutes after application, tempera paint is sufficiently resistant to water to allow overpainting with more colour. Thin, transparent layers of paint produce a clear, luminous effect, and the colour tones of successive brushstrokes blend optically. Modern tempera paintings are sometimes varnished or overpainted with thin, transparent oil glazes to produce full, deep-toned results, or they are left unglazed for blond effects.

The background is gold leaf on a wooden panel that has been painted with a a combination of glue and marble dust or chalk referred to as gesso.   The gold leaf is then incised and punctured with designs.  Gold leaf has also been added to the drapery as a means to highlight the folds. 
 
 
Make sure you read in Stokstad Technique: Cenini on Painting
The rendering of color and value in this painting is fairly limited.  There is no distinct source of light and very little tonal variation on the faces or drapery of the individual figures and there are no real differences of character or appearance from one face to the next. Cimabue's rendition of the Virgin is very similar to the one from Auvergne.  This painting, like the sculpture, is both naturalistic and stylized.  Again the rendering of the face and hands was an attempt by the sculptor to represent convincing human forms however, the faces show no real expression and the bodies are completely covered with an almost Byzantine style of drapery that almost completely conceals both figures' bodies.  The child Jesus is not rendered as a child buy rather a stiff looking miniature adult.  The poses of both figures are stiff and fairly wooden but in the case of Mary, this is appropriate if you look at her role in  terms of the work's iconography.
Iconography:  As in the French Gothic sculpture Mary is depicted as the "Throne of Wisdom."   The arrangement of the composition places Mary at the center of the image and in the most important location.  So the use of symmetry and the placement of figures can indicate their status.  Notice that Mary is framed and as such "backed up" by the angels.  The less important figures of the prophets are literally beneath her and Jesus.
Color and the gold leaf used also serve as iconographic reminders of Mary and Jesus' status.  Gold leaf and red and blue pigments were made from precious stones and materials and are symbols of there status.
Context: Stokstad relates that this work probably set the standard for monumental panel paintings.  Cimabue was one of the best known and sought after artists of his day and although he stuck to the old Byzantine conventions of depicting the human figure in a caricaturish manner he was still innovative in his illusionistic techniques.  He was also an artist of the times and the production and patronage concerning such works of art was going through a bit of a change at the end of the Gothic era.
Artist's during the late Gothic and early Renaissance periods were reliant on three major groups for patronage, the church, the aristocracy and the new wealthy merchant class.   Wealthy merchants, such as the Enrico Scrovegni, often would contribute frescoes and altar paintings to churches as a form of indulgence.  Often these merchants were wealthy enough to and commission artists to decorate a private altar for their own homes.
During the Gothic period, artists and fine furniture makers were on the same social and economic level.   Each group belonged to guilds that one paid dues to and were governed by certain rules.  A master who would often have a group of assistants and apprentices working for them ran these shops.  Apprentices were children anywhere between the ages of 11-20 years old.  Sometimes the parents of a child would pay the master of a shop a monthly or yearly fee in order for the master to teach the child a trade.  The child was expected to do work in the shop and when they had earned enough respect or mastery of skills, the master would then advance them on to more complex tasks.  After learning these skills for a long enough time, an exceptional child might learn enough to open their own shop; however, some apprentices, as adults remained as an assistant in their master's shop.
How Paintings were commissioned and bought.
The patron and artist negotiate the price.  The cost is established by how many figures are present in the painting, the size, the amount of gold leaf and the colors that are used.
The artist orders a wood panel from a furniture maker. It is very important that the wood is "gassed out." This means the older the wood, the more petrified, the better. This can be the most expensive part.
Panel is prepared by apprentices or an assistant by coating it with gesso.  Gesso is a mixture of chalk or calcium carbonate (marble dust) mixed with rabbit skin glue.
Now the paint is made. For tempera, egg yolk is mixed with ground-up minerals (sometimes even semiprecious stones) to make a very durable paint.
When all this is done and the painting is complete, there is a procession from the artist's studio to the church.
At this time the altarpiece for the high altar was finished and the picture which was called the "Madonna with the large eyes" or Our Lady of Grace, that now hangs over the altar of St. Boniface, was taken down. Now this Our Lady was she who had hearkened to the people of Siena when the Florentines were routed at Monte Aperto, and her place was changed because the new one was made, which is far more beautiful and devout and larger, and is painted on the back with the stories of the Old and New Testaments. And on the day that it was carried to the Duomo the shops were shut, and the bishop conducted a great and devout company of priests and friars in solemn procession, accompanied by the nine signiors, and all the officers of the commune, and all the people, and one after another the worthiest with lighted candles in their hands took places near the picture, and behind came the women and children with great devotion. And they accompanied the said picture up to the Duomo, making the procession around the Campo, as is the custom, all the bells ringing joyously, out of reverence for so noble a picture as this. And this picture Duccio di Niccolò the painter made, and it was made in the house of the Muciatti outside the gate a Stalloreggi . And all that day persons, praying God and His Mother, who is our advocate, to defend us by their infinite mercy from every adversity and all evil, and keep us from the hands of traitors and of the enemies of Siena. This account reminds us how we should remember the integral role of a major work like this in the civic life of the city. Notice also how the adoration devoted to this new image is comparable to that shown the relics of a patron saint of a community. It is important to remember that the Virgin was the patron saint of Siena, and as such she was the center of the civic and religious life of the city. Kneeling beside the throne of the Virgin are the other patron saints of Siena: Ansanus, Sabinus, Crescentius, and Victor. The order of the altarpiece and the privileged position given to the Sienese saints, especially the Virgin, would have been clearly understood to reflect the ideal order of the city of Siena which would stand before it in the Duomo. The civic implications are further brought out by the original inscription: HOLY MOTHER OF GOD BESTOW PEACE ON SIENA AND SALVATION ON DUCCIO WHO PAINTED THEE.
The reference in the account above to the Madonna with the Large Eyes , or in Italian --Madonna degli Occhi Grossi-- relates to a painting done about 1200:

This work was seen to be a miracle working image. The Sienese appeals to this image of their patron saint were believed to have lead to the salvation of the city from the Florentines in the Battle of Montaperti in 1260. Why do you think the Sienese would have wanted to have replaced such a revered image with the Duccio altarpiece?
quoted directly from:
Make sure you read in Stokstad Technique: Cenini on Painting

 

Giotto di Bondone, Virgin and Child Enthroned, 
(Ognissanti Altar,) c 1310. 
Tempera and gold on wood, 10'8"x6'8"
Galleria degli Uffizi, Florence
Late Gothic or Early Renaissance

Form:  Giotto's painting of the Virgin child shows some marked formal differences. Giotto is a kind of special effects master. His paintings are more three dimensional. He also uses more contrasts of light and shadow. This is called chiaroscuro. He also uses overlapping of the figures to create a sense of space. Compare to Duccio or Cimabue's paintings in which the figures that accompany Mary seem to be standing on bleachers as if for a class photo. Giotto also uses more life like gestures. The figures interact and tend to regard one another. Notice the tilted heads in adoration of the Virgin. The figure of Mary is more life like and even dresses more in the Italian style. Notice her hair is slightly uncovered and her clothing reveals the anatomy beneath almost like the wet drapery style of the ancient Greeks. The throne is also more convincingly rendered it looks looks like an actual architectural structure.  Iconography:  In an overt description of the iconography Giotto's rendition of this then seems identical to Cimabue's but on closer inspection, the naturalism and illusionism of the work is symbolic of some of the fundamental changes that were occurring during the late Gothic to Renaissance periods.
The naturalism relates to the study and pursuit of humanism.  The ideas of Christian and Catholic though go through a radical change with the canonization of St. Francis.  The idea that one should and could emulate the life and behavior of Christ meant that art needed to relate more to the individual and strike a chord of compassion.  The heightened realism of such images were designed to create a sense of sympathy or empathy with the religious characters they portrayed. 
Context:  Giotto was the student of Cimabue and considered a genius by Michelangelo and other later Renaissance painters.  Make sure you read about his life in "Liaisons."
According to the Brittanica,
Tempera
A tempera medium is dry pigment tempered with an emulsion and thinned with water. It is a very ancient medium, having been in constant use in most world cultures, until in Europe it was gradually superseded, during the Renaissance, by oil paints. Tempera was the original mural medium in the ancient dynasties of Egypt, Babylonia, Mycenean Greece, and China and was used to decorate the early Christian catacombs. It was employed on a variety of supports, from the stone stelae (or commemorative pillars), mummy cases, and papyrus rolls of ancient Egypt to the wood panels of Byzantine icons and altarpieces and the vellum leaves of medieval illuminated manuscripts. True tempera is made by mixture with the yolk of fresh eggs, although manuscript illuminators often used egg white and some easel painters added the whole egg. Other emulsions have been used, such as casein glue with linseed oil, egg yolk with gum and linseed oil, and egg white with linseed or poppy oil. Individual painters have experimented with other recipes, but few of these have proved successful; all but William Blake's later tempera paintings on copper sheets, for instance, have darkened and decayed, and it is thought that he mixed his pigment with carpenter's glue.
Distemper is a crude form of tempera made by mixing dry pigment into a paste with water, which is thinned with heated glue in working or by adding pigment to whiting, a mixture of fine-ground chalk and size. It is used for stage scenery and full-size preparatory cartoons for murals and tapestries. When dry, its colours have the pale, mat, powdery quality of pastels, with a similar tendency to smudge. Indeed, damaged cartoons have been retouched with pastel chalks.
Egg tempera is the most durable form of the medium, being generally unaffected by humidity and temperature. It dries quickly to form a tough film that acts as a protective skin to the support. In handling, in its diversity of transparent and opaque effects, and in the satin sheen of its finish, it resembles the modern acrylic resin emulsion paints.
Traditional tempera painting is a lengthy process. Its supports are smooth surfaces, such as planed wood, fine set plaster, stone, paper, vellum, canvas, and modern composition boards of compressed wood or paper. Linen is generally glued to the surface of panel supports, additional strips masking the seams between braced wood planks. Gesso, a mixture of plaster of paris (or gypsum) with size, is the traditional ground. The first layer is of gesso grosso, a mixture of coarse, unslaked plaster and size. This provides a rough, absorbent surface for ten or more thin coats of gesso sotile, a smooth mixture of size and fine plaster previously slaked in water to retard drying. This laborious preparation results, however, in an opaque, brilliant white, light-reflecting surface, similar in texture to hard, flat icing sugar.
The design for a large tempera painting traditionally was executed in distemper on a thick paper cartoon. The outlines were pricked with a perforating wheel so that when the cartoon was laid on the surface of the support, the linear pattern was transferred by dabbing, or "pouncing," the perforations with a muslin bag of powdered charcoal. The dotted contours traced through were then fixed in paint. Medieval tempera painters of panels and manuscripts made lavish use of gold leaf on backgrounds and for symbolic features, such as haloes and beams of heavenly light. Areas of the pounced design intended for gilding were first built up into low relief with gesso duro, the harder, less absorbent gesso compound used also for elaborate frame moldings. Background fields were often textured by impressing the gesso duro, before it set, with small, carved, intaglio wood blocks to create raised, pimpled, and quilted repeat patterns that glittered when gilded. Leaves of finely beaten gold were pressed onto a tacky mordant (adhesive compound) or over wet bole (reddish-brown earth pigment) that gave greater warmth and depth when the gilded areas were burnished.
Colours were applied with sable brushes in successive broad sweeps or washes of semitransparent tempera. These dried quickly, preventing the subtle tonal gradations possible with watercolour washes or oil paint; effects of shaded modelling had therefore to be obtained by a crosshatching technique of fine brush strokes. According to the Italian painter Cennino Cennini, the early Renaissance tempera painters laid the colour washes across a fully modelled monochrome underpainting in terre vert (olive-green pigment), a method developed later into the mixed mediums technique of tempera underpainting followed by transparent oil glazes.
The luminous gesso base of a tempera painting, combined with the accumulative effect of overlaid colour washes, produces a unique depth and intensity of colour. Tempera paints dry lighter in value, but their original tonality can be restored by subsequent waxing or varnishing. Other characteristic qualities of a tempera painting, resulting from its fast drying property and disciplined technique, are its steely lines and crisp edges, its meticulous detail and rich linear textures, and its overall emphasis upon a decorative flat pattern of bold colour masses.
The great Byzantine tradition of tempera painting was developed in Italy in the 13th and 14th centuries by Duccio di Buoninsegna and Giotto. Their flattened picture space, generously enriched by fields and textures of gold leaf, was extended by the Renaissance depth perspectives in the paintings of Giovanni Bellini, Piero della Francesca, Carlo Crivelli, Sandro Botticelli, and Vittore Carpaccio. By that time, oil painting was already challenging the primacy of tempera, Botticelli and some of his contemporaries apparently adding oil to the tempera emulsion or overglazing it in oil colour.
Following the supremacy of the oil medium during succeeding periods of Western painting, the 20th century saw a revival of tempera techniques by such U.S. artists as Ben Shahn, Andrew Wyeth, and George McNeil and by the British painter Edward Wadsworth. It would probably have been the medium also of the later hard-edge abstract painters had the new acrylic resin paints not proved more easily and quickly.
Gesso according to the Brittanica,
 
(Italian: "gypsum," or "chalk"), fluid, white coating composed of plaster of paris, chalk, gypsum, or other whiting mixed with glue, applied to smooth surfaces such as wood panels, plaster, stone, or canvas to provide the ground for tempera and oil painting or for gilding and painting carved furniture and picture frames. In Medieval and Renaissance tempera painting, the surface was covered first with a layer of gesso grosso (rough gesso) made with coarse, unslaked plaster, then with a series of layers of gesso sottile (finishing gesso) made with fine plaster slaked in water, which produced an opaque, white, reflective surface. In the 14th century, Giotto, the notable Italian painter, used a finishing gesso of parchment glue and slaked plaster of paris. In medieval tempera painting, background areas intended for gilding were built up into low relief with gesso duro (hard gesso), a less absorbent composition also used for frame moldings, with patterns often pressed into the gesso with small carved woodblocks. Modern gesso is made of chalk mixed with glue obtained from the skins of rabbits or calves.

Giotto and the Arena Chapel
Enrico Scrovegni
 

 
 
Context:  A quick overview provided by Brittanica:
 
Giotto's Arena Chapel 1305-1306 also called Scrovegni Chapel (consecrated March 25, 1305), small chapel built in the first years of the 14th century in Padua, Italy, by Enrico Scrovegni and containing frescoes by the Florentine painter Giotto.  A "Last Judgment" covers the entire west wall. The rest of the chapel is covered with frescoes in three tiers representing scenes from the lives of Saints Joachim and Anna, the life of the Virgin, the Annunciation, and the Life and Passion of Christ, concluding with the Pentecost. Below the three narrative bands is a fourth containing monochrome personifications of the virtues and vices. The frescoes were completed in or before 1309, and they are generally dated about 1305-06. There is thus no very generally agreed picture of Giotto's early development. It is some relief, therefore, to turn to the fresco cycle in the chapel in Padua known as the Arena or Scrovegni Chapel. Its name derives from the fact that it was built on the site of a Roman amphitheatre by Enrico Scrovegni, the son of a notorious usurer mentioned by Dante. The founder is shown offering a model of the church in the huge "Last Judgment," which covers the whole west wall.
"Arena Chapel."   Britannica 2001 Standard Edition CD-ROM.   Copyright © 1994-2001 Britannica.com Inc.   November 16, 2002. 
 The rest of the small, bare church is covered with frescoes in three tiers representing scenes from the lives of Joachim and Anna, the life of the Virgin, the Annunciation (on the chancel arch), and the life and Passion of Christ, concluding with Pentecost. Below these three narrative bands is a fourth containing monochrome personifications of the Virtues and Vices. The chapel was apparently founded in 1303 and consecrated on March 25, 1305. It is known that the frescoes were completed in or before 1309, and they are generally dated c. 1305-06, but even with several assistants it must have taken at least two years to complete so large a cycle. The frescoes are in relatively good condition, and all that has been said of Giotto's power to render the bare essentials of a setting with a few impressive and simple figures telling the story as dramatically and yet as economically as possible is usually based on the narrative power that is the fundamental characteristic of these frescoes. These dominating figures, simple and severe, similar to those in the Assisi cycle but placed in settings of more formal abstraction and rendered with more grandeur, are the quintessence of his style, and anatomy and perspective were used--or even invented--by him as adjuncts to his narrative gifts. He never attained to the skill that so often, in fact, misled the men of the 15th and 16th centuries. In the Padua frescoes the details are always significant, whereas it is a characteristic of the Assisi cycle that there occurs from time to time a delighted dwelling on details that are not absolutely essential to the story.
 "Paduan period."   Britannica 2001 Standard Edition CD-ROM.   Copyright © 1994-2001 Britannica.com Inc.   November 16, 2002. 
Form: The frescos are executed in a combination of buon fresco and fresco secco.  According to Webster's Dictionary, fresco is "the art of painting on freshly spread moist lime plaster with water-based pigments."   Fresco is a term that literally means "fresh."  There are two kinds, buon fresco and fresco secco.  This painting painting is made by coating a wall with plaster and while the wall is still damp, ground up pigments are mixed with water and lime and painted on the wall.  The paint soaks in and literally stains the wall up to a half an inch and becomes permanent.  This is called buon fresco (good fresh).  Details with more expensive colors (such as blue made from lapis lazuli) are added with tempera paint (egg yolks and glue) when the fresco is dry.  This is called secco fresco (dry fresh). 
This technique was first developed in Rome and you can still see some really good examples of early fresco dating from 79 CE in Pompeii.
The arrangement of the frescoes in the Arena Chapel actually adds to the frescoes meanings.   In order to better understand the frescoes art historians use a the same theory that literary analysts do to study the interrelationship of the stories or narratives.  This kind of analysis is called a semiotic or structural analysis.  By looking at this wall as a whole, and interpreting the relationship of panel image to the others, it is possible to come up with a deeper understanding of the set of frescoes as a whole. 
For example, the top set of images represents scenes from the life of Joachim, Mary's father.  This top set of scenes acts as a kind of thematic framework in which to view the life of Jesus which is set in the central section, beneath these stories, acting almost like a foundation or the caryatids from the Acropolis are the seven virtues and vices.  See the diagram below.
Scenes from the Life of Joachim
1. Expulsion of Joachim from the Temple
2. Joachim among the Shepherds
3. Annunciation to St. Anne
4. Joachim's Sacrificial Offering
5. Joachim's Dream
6. Meeting at the Golden Gate Scenes from the Life of the Virgin
7. The Birth of the Virgin
8. Presentation of the Virgin in the Temple
9. The Rods Brought to the Temple
10. Prayer of the Suitors
11. Marriage of the Virgin
12. The Wedding Procession
13. God Sends Gabriel to the Virgin
14. Annunciation: The Angel Gabriel Sent by God
15. Annunciation: The Virgin Receiving the Message
16. Visitation
Scenes From the Life of Christ
17. Nativity: Birth of Jesus
18. Adoration of the Magi
19. Presentation at the Temple
20. Flight into Egypt
21. Massacre of the Innocents
22. Christ among the Doctors
23. Baptism of Christ
24. Marriage at Cana
25. Raising of Lazarus
26. Entry into Jerusalem
27. Expulsion of the Money-changers from the Temple
28. Judas Receiving Payment for his Betrayal
29. Last Supper
30. Washing of Feet
31. Kiss of Judas
32. Christ before Caiaphas
33. Flagellation
34. Road to Calvary
35. Crucifixion
36. Lamentation (The Mourning of Christ)
37. Resurrection (Noli me tangere)
38. Ascension
39. Pentecost

 
 
Virtues and Vices
Justice and Injustice Form: This is a monochromatic fresco.  It resembles a marble relief sculpture.  Giotto's genius is also seen in his perspective and visual depth.  Light and shadow of the gown she wears resembles the type of gown a Roman woman would wear.  Perhaps this is an allusion to Roman art and law.  The personification of Justice (as well as Injustice) is slightly larger than the rest of the vices and virtues. 
Giotto uses chiaroscuro (the play of light and shadow or shading) to create realism in this work.  The drapery is no longer rendered in the cartoonish or awkward manner of earlier paintings and the light source seems consistent across the entire picture plane.
Iconography:  The pointed domes surrounding her throne resemble the arches of a gothic cathedral.  Though wearing a crown that is a symbol of royalty, this religious backdrop would indicate that she is Godly.  Some people also believe that this is Mary.  The procession of people at the bottom of this image shows people living prosperous lives.  They are dancing, tending their animals and conversing amongst themselves.  The lesson being subtly portrayed would be that if one lives a moral life, he will enjoy happiness and prosperity.
Context:  Literacy of the Middle Ages was very low.  Only the clergy could read the scriptures.  Therefore, the paintings inside the temples during this period were for didactic purposes.  They were meant to tell a story.  In the Arena Chapel the stories are of Jesus’ parents, His life, and then running around the bottom of the church (at eye level) are the Virtues and Vices so that all could see them. Virtues consisted of: Justice (above) prudence, fortitude, temperance, faith, charity, and hope. 
by Annette Abbotte
Form:  Marble during this period was very expensive, so to cut down on costs, Giotto painted the virtues and vices in a way that made them look like marble.  It is also a monochromatic fresco.   Though he sits quite close to the fore of the picture plane, Giotto's use of light, shadow and perspective make this ruler appear to be receding beneath the arches of his throne. Iconography:  The crumbling castle that serves as a backdrop to this ruler’s throne would suggest that he is a tyrant.  He rules his kingdom with a sword.  There are trees growing up in front of him.  They symbolize the idiomatic expression of one not being able to “see the forest for the trees” – not that this is of any value because, with his head tilted away from the viewer, it appears as if he does not wish to see them at all. The procession of people running along the bottom of this painting indicates these people live in a place of unrest - perhaps a civilization in decline.  We see them pillaging, stealing and fighting amongst each other. 
Context:  The seven vices are personified on one side of the temple facing the virtues.  The vices are:  Injustice, desperation, envy, infidelity, wrath, inconstancy and foolishness.
Semiotic or structural analysis:  The seven vices and virtues are positioned around lowest part of the cathedral.  They are intentionally at eye level so that every man who enters the temple can look at and be reminded of the constant and equal struggle of these characteristics in everyone.  Justice and Injustice both occupy a central position on the dado.  The inside of the Arena Chapel is a didactic text.  The higher the eye rises when viewing these frescos, the loftier are the images or stories being portrayed.  We can look up to see Christ's parents and his life, but then when we look at the images on the bottom – the ones nearest to ourselves, we see our own souls.  The Virtues are on the right side of the chapel.  The right in such paintings always represents good (“right hand of God”) or Godliness.  The Vices are located along the left side. 
by Annette Abbotte
Take a virtual tour of the Arena chapel here:
http://www.mystudios.com/gallery/giotto/preamble.html

St. Lazare, Autun Cathedral, France
West Portal, sculpted by Gislebertus c1130CE
 
Form: Compare this image to Gislebertus' carving at Autun Cathedral. The composition is symmetrical and organized using hieratic scale.  The picture plane is also organized according to horizontal bands but in this image, unlike its Romanesque predecessor, there is overlapping and some sense of space created.  The structure of the composition is still standard according to depictions of a "Last Judgment." According to the Brittanica,
Typically, the figure of Christ appears in the centre of the composition, dominant in size and usually enclosed in a mandorla (an oval, nimbus-like form). At his right and left are the four Evangelists, sometimes represented or accompanied by their animal symbols. To the sides, smaller figures of angels and demons weigh sins of the resurrected dead, who are ranked along the lowest and smallest section of the tympanum, directly above the lintel.

Iconography: What makes St. Lazare an interesting example of Romanesque architecture and art is the fact that the west portal, which depicts  a "sermon in stone," was originally painted. It is exceedingly well organized and stylized. This means that the figures represented in the relief sculpture are non naturalistic, this is akin to what one would see in Byzantine art. The figures relative size is based not on reality, but  on their spiritual importance. 
Jesus, as the central figure is shown impossibly huge the figures around him are depicting judgment, heaven and hell, and good and evil. The organization of the composition is designed so that all of the other figures relate in some way to the central figure of Jesus.  Figures who are to the right of Christ are literally on his good side while the figures to his left are not.  Likewise there is a hierarchy according to placement in the three bands.  The correlation between left and right (good and evil) does not exist in the topmost band.  Anything placed in the uppermost register of the composition is "good" or heavenly.
According to the Brittanica,
 
Christianity, further developing the concept of the Last Judgment, teaches that it will occur at the Parousia (the Second Coming, or Second Advent, of Christ in glory), when all men will stand before a judging God. In early Christian art the scene is one of Christ the judge, the resurrection of the dead, the weighing of souls, the separation of the saved and the damned, and representations of paradise and hell. Romanesque artists produced a more terrible vision of the Last Judgment: Christ is shown as a stern judge, sometimes carrying a sword and surrounded by the four mystical beasts--eagle, lion, ox, and winged man--of the apocalypse; the contrast between paradise and hell is between the awesome and the ferocious. In the gentler, more humanistic art of the Gothic period, a beautiful Christ is shown as the Redeemer, his right side undraped to reveal the wound of the lance, and both wounded hands raised high in a gesture that emphasizes his sacrifice. He is surrounded by the instruments of his Passion--cross, nails, lance, and crown of thorns. The intercessors are restored, and the scene of the Judgment is treated with optimism. In the 16th century, Michelangelo produced a radically different version of the Last Judgment in his fresco in the Sistine Chapel in Rome (1533-41): a vengeful Christ, nude like a pagan god, gestures menacingly toward the damned.

 
The iconography of this "Last Judgment" does change a bit also by the inclusion of the patron of the image just to the left of center (Christ's right.)  The inclusion of a patron or donor to the chapel actually is very significant, it tells us that there is a new class of people on the scene and that they consider themselves important.  It also indicates some ideas concerning the sale of indulgences and usury that are later on considered suspicious during the 1500's.  See professor Farber's page for a more complete discussion.  Dr. Farber's Lecture on the Arena Chapel
 
Below the cross, on the left, is the dedicatory scene, in which Enrico Scrovegni kneels before the Virgin and two saints, offering a model of the Arena Chapel upheld by an Augustinian friar. The portrait of Scrovegni, who is shown in sharp profile, is a faithful representation of the youthful features of the same man shown in old age on his marble tomb in the same chapel. His clothing and hair style reflect the fashions of the day, and provide valuable information on contemporary costume. The figure of Scrovegni is on the same scale as the sacred figures he is addressing - it was evidently enough to show him kneeling before these figures to indicate his 'inferior' status.  The model of the chapel presented by Scrovegni differs in a few details from the real chapel, a fact which suggests that the Last Judgment may have been painted before the exterior of the chapel was completed. This is a strong possibility since the most pictorially advanced parts of the cycle, i.e. those most similar to Giotto's later works, appear on the wall opposite the Last Judgment, above and on each side of the chancel arch. The warm, rich coloures of the angels surrounding God, and of the figures of Gabriel and Mary are related to the fresco decorations in the Magdalen Chapel in the Lower Church at Assisi, which are the closest to the Paduan frescoes of all of Giotto's surviving cycles.
http://www.kfki.hu/~arthp/tours/giotto/lastjudg.html

Context: According to Professor Farber,
In 1300, the wealthy Paduan merchant Enrico Scrovegni bought a piece of land on the site of a former Roman arena. Included in the palace that he built on the site was a chapel dedicated to the Virgin of the Annunciation, Santa Maria Annunziata, and the Virgin of Charity, Santa Maria del Carità. Enrico is shown in the fresco of the Last Judgment presenting a model of the chapel to the Virgin: The family wealth had been amassed by Enrico's father, Reginaldo, whom Dante singled out as the arch usurer in his Inferno. Usury, the lending of money for profit, was considered a sin during the Middle Ages. It is likely that Enrico constructed the chapel as a means to expiate the father's sin. The dedication of the Chapel to the Virgin of Charity, referred to in a document of March of 1304 in which Pope Benedict XI granted indulgences to those who visited "Santa Maria del Carità de Arena," was an obvious choice to disassociate the family from taint of greed and miserliness.

 

Form:  This is a detail of the lower right hand corner (to Christ's left) of the Last Judgment.  In this section the coloring shifts radically with its flames and lava.  The figure of the devil is placed in the center of the sub region of hell. 
  Iconography: 
 
The damned, who are shown in the lower right hand corner, fall into a hell dominated by the figure of Satan. This hell teems with hopeless diminutive figures being subjected to a variety of comically indecent humiliations and torments by apish devils. It is a far cry from Dante's tragic vision of hell and recalls only a few verses of the Inferno about the area of hell known as the Malebolge. Almost all these figures can be attributed to Giotto's assistants, though here, too, the guiding hand of the master can be perceived in the rich play of imagination which characterizes the whole, and in the execution of certain parts, which suggest his direct intervention. This is true of the wonderfully immediate episode that takes place on the brink of hell, below the cross, where two devils conduct a struggling man back to the damned, tugging him by his clothes, which are being pulled over his head to reveal his disproportionate genitals.  (It seems these two sites copied from each other, I'm not sure which is the original source so here's links to both.)
http://gallery.euroweb.hu/html/g/giotto/padova/4lastjud/lastj_d4.html
http://www.kfki.hu/~arthp/tours/giotto/lastjudg.html

According to Dr. Farber, In hell . . . 
the theme of usury is also developed in the adjacent image of Christ expelling the merchants from the Temple and the detail of usurers hanging from the their money bags in the Hell scene included in the Last Judgment:
Giotto's walls and paintings are done in fresco,  According to the Brittanica,
 
Fresco is a method of painting water-based pigments on freshly applied plaster, usually on wall surfaces. The colours, which are made by grinding dry-powder pigments in pure water, dry and set with the plaster to become a permanent part of the wall. Fresco painting is ideal for making murals because it lends itself to a monumental style, is durable, and has a matte surface. Buon', or "true," fresco is the most durable technique and consists of the following process. Three successive coats of specially prepared plaster, sand, and sometimes marble dust are troweled onto a wall. Each of the first two rough coats is applied and then allowed to set (dry and harden). In the meantime, the artist, who has made a full-scale cartoon (preparatory drawing) of the image that he intends to paint, transfers the outlines of the design onto the wall from a tracing made of the cartoon. The final, smooth coat (intonaco) of plaster is then troweled onto as much of the wall as can be painted in one session. The boundaries of this area are confined carefully along contour lines, so that the edges, or joints, of each successive section of fresh plastering are imperceptible. The tracing is then held against the fresh intonaco and lined up carefully with the adjacent sections of painted wall, and its pertinent contours and interior lines are traced onto the fresh plaster; this faint but accurate drawing serves as a guide for painting the image in colour.
A correctly prepared intonaco will hold its moisture for many hours. When the painter dilutes his colours with water and applies them with brushstrokes to the plaster, the colours are imbibed into the surface, and as the wall dries and sets, the pigment particles become bound or cemented along with the lime and sand particles. This gives the colours great permanence and resistance to aging, since they are an integral part of the wall surface, rather than a superimposed layer of paint on it. The medium of fresco makes great demands on a painter's technical skill, since he must work fast (while the plaster is wet) but cannot correct mistakes by overpainting; this must be done on a fresh coat of plaster or by using the secco method.
Secco ("dry") fresco is a somewhat superficial process that dispenses with the complex preparation of the wall with wet plaster. Instead, dry, finished walls are soaked with limewater and painted while wet. The colours do not penetrate into the plaster but form a surface film, like any other paint. Secco has always held an inferior position to true fresco, but it is useful for retouching the latter.
The origins of fresco painting are unknown, but it was used as early as the Minoan civilization (at Knossos on Crete) and by the ancient Romans (at Pompeii). The Italian Renaissance was the great period of fresco painting, as seen in the works of Cimabue, Giotto, Masaccio, Fra Angelico, Correggio, and many other painters from the late 13th to the mid-16th century. Michelangelo's paintings in the Sistine Chapel and Raphael's Stanza murals in the Vatican are the most famous of all frescoes. By the mid-16th century, however, the use of fresco had largely been supplanted by oil painting. The technique was briefly revived by Diego Rivera and other Mexican Muralists in the first half of the 20th century.

Christ Entering Jerusalem
Duccio di Buoninsegna, (Maestà)
detail Christ Entering Jerusalem
(Maestà, reverse of the top panel called "verso")
1308-11Tempera on wood
Museo dell'Opera del Duomo, Siena
Form: Giotto is known for his ability to create a rational sense of space, even though he hasn't really formulated or learned the laws of perspective as they are known by 1400. He does use vertical perspective to create space initially.  He places the figures that are closest to the viewer the lowest in the picture plane and those further back higher up but, he places the figures more on a horizontal and logical plane. 
He also uses overlapping and a size scale difference between foreground and background.  Some of the figures in the crowd overlap and hide the figure's behind them.  The figures in the background are significantly smaller but the scale of the building is a bit illogical.
Compare this image to Duccio's rendition of the same image.
Giotto also uses chiaroscuro (the play of light and shadow or shading) to create realism in this work.  According to the Brittanica, chiaroscuro (from Italian chiaro, "light"; scuro, "dark"), which is technique employed in the visual arts to represent light and shadow as they define three-dimensional objects. The drapery is no longer rendered in the cartoonish or awkward manner of earlier paintings and the light source seems consistent across the entire picture plane.
Context:  In order to understand the iconography of this scene one needs to go to the Bible passage on which it is modeled first:
Matthew Chapter 21
1
When they drew near Jerusalem and came to Bethphage on the Mount of Olives, Jesus sent two disciples,
2
saying to them, "Go into the village opposite you, and immediately you will find an ass tethered, and a colt with her. Untie them and bring them here to me.
3
And if anyone should say anything to you, reply, 'The master has need of them.' Then he will send them at once."
4
This happened so that what had been spoken through the prophet might be fulfilled:
5
"Say to daughter Zion, 'Behold, your king comes to you, meek and riding on an ass, and on a colt, the foal of a beast of burden.'"
6
The disciples went and did as Jesus had ordered them.
7
They brought the ass and the colt and laid their cloaks over them, and he sat upon them.
8
The very large crowd spread their cloaks on the road, while others cut branches from the trees and strewed them on the road.
9
The crowds preceding him and those following kept crying out and saying: "Hosanna to the Son of David; blessed is he who comes in the name of the Lord; hosanna in the highest."
10
And when he entered Jerusalem the whole city was shaken and asked, "Who is this?"
11     And the crowds replied, "This is Jesus the prophet, from Nazareth in Galilee."
Iconography:  Most of the iconography is fairly standard in this image.  Jesus is depicted in he usual manner, he has a beard and is depicted, as his apostles with a beautiful nimbus of gold around his head.  His halo is literally the light of divine knowledge which radiates from him.  The royal red and blue colors he wears and the gold leaf are all meant to emphasize his status, however, he is also humble.  He rides a common beast of burden to show his connection to all men.  However, Giotto has a sense of humor about the whole thing.  If you look at the figure in the far right hand corner of Giotto's image, you may notice that one of the figures seems to be having some trouble removing his cloak.


Giotto, The Lamentation, c1305 Arena Chapel, Padua, Italy ¹la.ment vb [ME lementen, fr. MF & L; MF lamenter,
fr. L lamentari, fr. lamentum, n., lament] vi (15c): to mourn aloud: 
wail ~ vt 1: to express sorrow, mourning, or regret for often 
demonstratively: mourn 2: to regret strongly syn see deplore 
²lament n (1591) 1: a crying out in grief: wailing 2: dirge, elegy 
3: complaint 
Form: Giotto is known for his ability to create a rational sense of space, even though he hasn't really formulated or learned the laws of perspective as they are known by 1400.  In this image, he does not really rely on vertical perspective to create space initially but rather he overlaps the figures. Giotto uses chiaroscuro (the play of light and shadow or shading) to create realism in this work.  According to the Brittanica, chiaroscuro (from Italian chiaro, "light"; scuro, "dark"), which is technique employed in the visual arts to represent light and shadow as they define three-dimensional objects. The drapery is no longer rendered in the cartoonish or awkward manner of earlier paintings and the light source seems consistent across the entire picture plane.
The gesture and the creation of space are combined by Giotto in the figure of St. John (?) whose arms he shows as being thrown wide and in the attitudes and poses of the angels and the figures with their backs to the viewer.  The torsos of both the angels who fly above and the figures in the foreground are foreshortened.  Foreshortening, is when something like an arm, or a finger or even the trunk of the bodies of the angels project forward into the viewer's face.  As things move towards the front (the fore ground) of the picture plane, they actually look shorter, hence, foreshortened.
The figures with their backs to the viewer also create space by placing the viewer in the position in which they are literally looking over the shoulder of someone else to get a better view.
Iconography:  Giotto especially uses the language of humanism to get the viewer to identify with the participants in this scene.  Gesture and the use of the back turned figures in the foreground are both iconographic as well as formal.  In this case, Giotto is attempting to demonstrate or provide for the viewer every emotion one might feel as they looked on the body of Christ just after it was deposed (taken down from the cross) and before it was entombed.  The audience is invited to imagine how they might have felt at this event and are asked to match themselves up with one of the characters in the image.

  chiar.oscu.ro n, pl -ros [It, fr. chiaro clear, light + oscuro obscure, dark] (1686) 1: pictorial representation in terms of light and shade without regard to color 2 a: the arrangement or treatment of light and dark parts in a pictorial work of art b: the interplay or contrast of dissimilar qualities (as of mood or character) 3: a 16th century woodcut technique involving the use of several blocks to print different tones of the same color; also: a print made by this technique 4: the interplay of light and shadow on or as if on a surface 5: the quality of being veiled or partly in shadow
 

chiaroscuro
The picture plane is further unified and made consistent by the use of light and shadow referred to as chiaroscuro. According to the Brittanica, 
 
Chiaroscuro (from Italian chiaro, "light"; scuro, "dark"),
technique employed in the visual arts to represent light and shadow as they define three-dimensional objects. Some evidence exists that ancient Greek and Roman artists used chiaroscuro effects, but in European painting the technique was first brought to its full potential by Leonardo da Vinci in the late 15th century in such paintings as his "Adoration of the Magi" (1481; Uffizi, Florence). Thereafter, chiaroscuro became a primary technique for many painters, and by the late 17th century the term was routinely used to describe any painting, drawing, or print that depends for its effect on an extensive gradation of light and darkness.
 "chiaroscuro."  and  Britannica 2001 Standard Edition CD-ROM.   Copyright © 1994-2001 Britannica.com Inc.   November 19, 2002. 
 
Dado:  lower part of the interior wall that is decorated differently than the top.
Didactic:  a painting or piece of literature that contains a moral lesson. di.dac.tic adj [Gk didaktikos, fr. didaskein to teach] (1658) 1 a: designed or intended to teach b: intended to convey instruction and information as well as pleasure and entertainment 2: making moral observations -- di.dac.ti.cal adj -- di.dac.ti.cal.ly adv -- di.dac.ti.cism n
 
fres.co n, pl frescoes
[It, fr. fresco fresh, of Gmc origin; akin to OHG frisc fresh] (1598)
1: the art of painting on freshly spread moist lime plaster with water-based pigments
2: a painting executed in fresco -- fresco vt
fresco comes from the Italian word for fresh.  The paint is applied quickly in fresh patches of plaster that haven't had a chance to dry yet.  This allows the paint to sink into the plaster and stain it sometimes up to a quarter of an inch below the surface of the wall.
buon fresco, which literally means "good fresh," the water color and lime (the mineral not the fruit) are painted directly on damp plaster that has just been applied.
fresco secco (Italian for "dry fresh") is a little less permanent and the paint sometimes can flake off the walls.  Paint and especially details and expensive colors are applied to sections of the mural that have already dried.  The medium in this case is either tempera (egg and water) or some kind of glue usually made from animal skin or some sort of dairy product.
hu.man.ism n (1832) 1 a: devotion to the humanities: literary culture b: the revival of classical letters, individualistic and critical spirit, and emphasis on secular concerns characteristic of the Renaissance 2: humanitarianism 3: a doctrine, attitude, or way of life centered on human interests or values; esp: a philosophy that usu. rejects supernaturalism and stresses an individual's dignity and worth and capacity for self-realization through reason -- hu.man.ist n or adj -- hu.man.is.tic adj -- hu.man.is.ti.cal.ly adv
monochromatic "mono" means one or single.  "Chroma" refers to color.  So this means painted in one color or a single color.
Trompe l'oeil - (French: "deceive the eye"), in painting, the representation of an object with such verisimilitude as to deceive the viewer concerning the material reality of the object. This idea appealed to the ancient Greeks who were newly emancipated from the conventional stylizations of earlier art. Zeuxis, for example, reportedly painted such realistic grapes that birds tried to eat them. The technique was also popular with Roman muralists. Although trompe l'oeil never achieved the status of a major artistic aim, from the early Renaissance on, European painters occasionally fostered illusionism by painting false frames out of which the contents of a still life or portrait appeared to spill, or by creating window-like images suggesting actual openings in the wall or ceiling. (Brittanica)