perspective and printing press - the first information revolutions
DESCRIPTION
Perspective and Printing Press - The First Information Revolutions. Perspective. Media. Pigments: minerals or organic. No organic synthetic colors until 19th century. Fresco - pigment on plaster. Tempera - pigment plus water or egg. Linseed oil - 15th century. - PowerPoint PPT PresentationTRANSCRIPT
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Perspective and Printing Press - The First Information
Revolutions
Perspective
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Media Pigments: minerals or organic. No organic
synthetic colors until 19th century. Fresco - pigment on plaster. Tempera - pigment plus water or egg. Linseed oil - 15th century. Use of paint as wood preservative very
recent. • First ready-mixed pigment and vehicle sold
only in 19th century.
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Representational Styles
• Conceptual - Elements sized or placed according to importance
• Polydimensional - Objects viewed from vantage point that best shows features
• Perspective– Not automatically seen as “natural” by other
cultures– Children have to learn to interpret it
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Conceptual
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Conceptual Style –
Byzantine Madonna
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Polydimensional
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Polydimensional – British
Columbia Totem
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Polydimensional – Egyptian
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Polydimensional - Picasso
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Polydimensional – Maurits Escher
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Perspective
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Perspective
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Perspective
Vanishing point Size reduction with distance • Conventions are cultural and learned.
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Development of perspective
Distance cues were known and used, but not systematically Size - distance relations Near objects overlap distant ones Foreshortening
Convergence of parallels (pre-perspective examples are common, but lacked geometrical consistency.)
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The Book of Hours of the
Duc du Barry, ca. 1400
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Size - distance relations inconsistent
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Inconsistent Viewpoints
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Convergence of parallels known but
lack geometrical consistency
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Convergence
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The Funeral of Raymond
Diocres (1408)
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Post-14th Century Realism
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A Very Modern
Convention
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Development of perspective
Disasters of 14th century led to graphic depiction of often unpleasant realities. Art climate was ripe for greater realism.
Introduction of Ptolemy's Geographia about 1350 re-introduced projection techniques.
Use of grids as drafting aids Camera obscura as aid in drawing
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Ptolemy’s Geographia
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The Camera Obscura
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Natural Pinhole Cameras
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Effects of perspective technique Delight in new technical mastery (Tour de
Force) Discovery of power of close observation
and attention to detail Power of mathematics to explain nature Power of simple principles to achieve great
effects
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Tour de Force: Andrea Pozzo, 1600’s
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Tour de Force: Andrea Pozzo, 1600’s
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Deliberate Use of Perspective