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- 1. [dictionary] The technique of representing three-dimensional objects and depth relationships on a two-dimensional surface. [wikipedia] Is an approximate representation, on a flat surface (such as paper), of an image as it is seen by the eyeCharacteristic featuresSmaller as their distance from the observer increasesForeshortened: the size of an objects dimensions along the line of sight are relatively shorter than dimensions across the line of sight
- 2. Perspective developed during the renaissance period Albrecht Durer He said that if two painters were to draw a scene from two different angles, the paintings would be different but then, what would they have in common?Filippo Brunelleschione of the foremost architects andengineers of the RenaissanceInvented artistic linear perspective
- 3. Before After Illusion of depth Oddness and flatness Size of elements according to distance ShapesReconstruction of the Temple The school of athensof Jerusalem BV
- 4. Vanishing point the point at which parallel lines receding from an observer seem to convergePicture plane or painting plate the appearance of things relative to one another as determined by their distance to the viewerAxis a reference line from which distances or angles are measured in a
- 5. 1. One-point perspective2. Two-point perspective3. Three-point perspective4. Four-point perspective5.Zero-point perspective6. Foreshortening
- 6. Characteristics -one vanishing point is present -one-point perspective is present when the scene drawn is composed of -line segments which intersect only at right anglesApplications - one-point perspective can be used when subject is made up of lines which are either parallel with the viewer’s line of sight or perpendicular
- 7. Draw a horizontal lineIndicate vanishing point in the horizontal lineDraw desired shapeDraw lines from the shape’s corners to vanishing pointDraw vertical and horizontal lines to finish desired shapehttp://www.slideshare.net/Lexi83/perspective-ppt
- 8. Characteristics -two vanishing points are present -one point represents a set of parallel lines -other point represents the other set -to make things easy, imagine you are in a junctionApplications -scenes wherein one-point perspective is used but rotated -corner of a building, book, box, two forked roads
- 9. Draw guide lines (horizontal and vertical)Indicate left and right vanishing pointsDraw desired height of object (vertical)Draw lines from tips to vanishing pointshttp://www.slideshare.net/jgammill/two-point-perspective
- 10. Characteristics -three vanishing points are present -two points (from two-point perspective) one for each wall -third vanishing point is used for how those walls vanish into the groundApplications -used for buildings seen from above or below
- 11. Characteristics -two vanishing points are present -one point represents a set of parallel lines -other point represents the other set -to make things easy, imagine you are in a junctionApplications -scenes wherein one-point perspective is used but rotated -corner of a building, book, box, two forked roads
- 12. Characteristics -two vanishing points are present -one point represents a set of parallel lines -other point represents the other set -to make things easy, imagine you are in a junctionApplications -scenes wherein one-point perspective is used but rotated -corner of a building, book, box, two forked roads
- 13. Characteristics -two vanishing points are present -one point represents a set of parallel lines -other point represents the other set -to make things easy, imagine you are in a junctionApplications -scenes wherein one-point perspective is used but rotated -corner of a building, book, box, two forked roads
- 14. - Projections wherein parallel linesremain parallel.-Ratios of distances between twodifferent points (in a line) arepreserved.- Three types: elevation, obliqueprojections, and isometric projections.
- 15. - Only twocoordinates areconsidered
- 16. Drawn from an angle, causing the frontsides to look distorted.
- 17. The floor is drawn without distortions. TheThe walls emerge at an angle.
- 18. The perpendicular corners form 120degree angles.
- 19. DO WE REALLY SEE THESE FIGURESWHEN WE LOOK AT A NORMAL HOUSE? WHY OR WHY NOT? This is where perspective comes in…
- 20. What’s the difference?
- 21. The cone of vision is only thirty degrees about the axis so the vanishing points of a cube at both sides can’t be seen at the same time.
- 22. - Since two parallel lines never intersect, these‘vanishing points’ do not really exist in three-space, so where are they located?-A solution to this problem was introduced byDesargues. - He introduced the idea that “points at infinity” exist.
- 23. - It is also called the ideal point. - The union of the number line and its point atinfinity will yield a closed curve. (the real projective line) - All lines now intersect, including parallel lines.
- 24. - New arithmetic operations were defined in thiskind of system.

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