Perspective
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Transcript of Perspective
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Linear Perspective
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What is perspective?
• A method of organizing forms in space
• Used primarily to create the illusion of depth or space on a 2D surface
• We tend to see perspective as a system of ordering pictorial space in terms of a single point
• Lines converge to mark the diminishing size of forms as they recede into the distance
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Leonardo da Vinci "The Last Supper"
c.1495-1498
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Discovery of Perspective
• Filippo Brunelleschi
• Developed the mathematical system of linear perspective
• Saw the picture plane as a transparent window through which the observer looks into the constructed, pictorial world
• All lines perpendicular to the picture plane meet in a single point on the horizon line (eye line)
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• This discovery was enormously important to Renaissance artists for what was called the "rationalization of sight"
• It brought infinitely various visual sensations under a simple rule that can be expressed mathematically
• The combination of art, math and science is a hallmark of the Italian Renaissance
• The artists of the Renaissance were often mathematicians...and it has been said that the most creative work done in mathematics in the 15th century was done by artists
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• Most early Renaissance artists were not primarily mathematicians but rather saw perspective as a way of organizing a composition
• The use of perspective made paintings exact and space understandable
• Plato said, "the excellence of beauty of every work of art is due to the observance of measure."
• The "measure" or the ability to mathematically observe artworks was considered the height of beauty
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Raphael, "The School of Athens" 1509-1511
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Pierro Della Francesca,"The Flagellation of Christ", 1455
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Perugino, "Christ Delivering the Keys to the Kingdom", 1481-1483
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Andrea Mantegna, "The Dead Christ", 1501
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Andrea Mantegna, ceiling of the Camera degli Sposi, 1474
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Rules of Linear Perspective
• A perspective drawing always has a horizon line, a vanishing point (point of convergence) and converging lines
• Convergence: Lines or edges of objects which in reality are parallel appear to come together as they recede from the observer
• In 1pt perspective, height is always vertical, width is always horizontal, depth always recedes to the vanishing point
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-Diminution: Things appear to become smaller as they go into the distance.
-Foreshortening: Lines or surfaces parallel to the observers face show their maximum size. As they revolve away from the observer they appear increasingly shorter.
-Convergence = Diminution + Foreshortening
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• Leonardo da Vinci added to the illusionistic effect of linear perspective by discovering "atmospheric perspective"
• He said that as things go into the distance they become smaller, lose detail and colors lose intensity
• da Vinci called it the "perspective of disappearance"
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Filippo Brunelleschi
• 1377-1446
• Trained as a goldsmith but was well known as a sculptor
• Began working with architecture after being rejected for a competition to design baptistry doors
• He took several trips to Rome was very interested in the Roman ruins
• In trying to accurately draw the ruins he developed linear perspective
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• His unique blend of architectural knowledge with an analytical and inventive mind permitted him to solve a problem no other 15-century architect could solve
• Brunelleschi won the commission to design and build the dome for the huge crossing of the unfinished cathedral of Florence
• Dedicated to Santa Maria del Fiore, the cathedral was built in 1367...10 years before Brunelleschi was born
• The opening for the dome was left open until Brunelleschi's design was accepted in 1420 and completed in 1436
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Giorgio Vasari
"The Last Judgement"1572-1579
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• Span of the dome was 140 feet, too wide for traditional wooden construction
• Brunelleschi devised new building methods and most of the tools necessary for construction
• Designed the dome around an ogival section, which reduces the outward thrust around the dome's base
• An ogival section is a pointed arch (based on Gothic architecture)
• To reduce weight he designed a double-walled shell
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• The double shell is supported by 24 ribs, 8 of which are most prominent and visible from the exterior
• To hold the 8 segments of the dome in place, Brunelleschi designed a heavy lantern the sits atop the dome and stops the ribs from separating
• This was added after his death
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