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# Perspective Drawing Essay

In the tutorial lessons that follow this page, you will be given the tools needed to map out a perspective grid for any s-dimensional situation. From this grid, you will be able to create realistic three dimensional drawings from flat or “Off Angle” reference. The three photos below demonstrate the difference between I-Point and Point Perspective, as well as 3-Point Perspective. The first photograph (Fig. 1) is an example of one-point perspective. All of the major Vanishing Points for the buildings in the foreground of Fig. 1 converge at one central location on the orison line.

The angle view or Point Of View (POP) in Fig. 1 is referred to as Normal View perspective. In Fig. 2 the vanishing points for the two opposing faces of the center foreground building project towards two different vanishing points on the horizon line. In Fig, 3 we see that the horizontal building elements project to the let and right horizon and the vertical building elements project to a central vanishing point in the sky. This upper vanishing point is called the Zenith. If one were looking down on the object from a Bird’s Eye perspective, the gnashing point below the horizon and would be called the Nadir.

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Perspective Types Deconstructing “Perspective” from Photography In the next three diagrams, you Will see the same three photographs With Vanishing Point trajectory lines (magenta) and Horizon Lines (blue) traced over the subject matter. Fig. 4 and Fig. S are both examples Of Normal View perspective. A Normal View angle places the Horizon Line at a natural height as if the viewer was looking straight forward without tilting the head/camera up or down. In these two examples, you will notice that all of the vertical features of the alluding are straight up and down. Fig. Is an example of a Worm’s Eye perspective. In Fig. 6 the head/camera is tilted upward placing the Horizon below the picture. The perspective when the view is tilted in an upward direction, creates a third vanishing point at the Zenith. All of the vertical building features will converge at this upper vanishing point, If we were looking down on a subject, the viewing angle would be a Bird’s Eye View and the vertical details would converge at the Nadir. This technique of tracing parallel lines to their convergence point would be seed to construct a Perspective Grid from exiting photographic material.

Each convergence point will represent the exact location of the Horizon, Zenith, or Nadir in that photograph. Photos With Perspective Grid Overlay The Illusion of Depth In the preceding photographic examples you will notice that as an object recedes towards a Vanishing Point (infinity) it appears to get smaller. This phenomenon is due to the fact that the “viewer” is ATA steeper angle view when looking an object that is in close proximity as opposed to an object of the same size that is rather away and therefore, viewed at a shallower angle.

This phenomenon was first observed during the 16th century, when a German painter and printmaker named Albrecht Dјere began drawing observed objects onto a sheet of glass (below, left), later known as the ‘picture plane. ‘ Prior to the discovery of the picture-plane, artists used their best guess to determine perspective (below, right). Albrecht Dјere and Perspective Drawing History Albrecht Dјere drawing on glass ‘picture plane’ c, 1520 (left), Capable Attribution fresco in Florence c. 1430 (right)

The picture-plane shown in the diagram below represents the point where the observer perceives perspective. In the physical world, the “picture plane” (as shown below) represents the point at which the observer perceives perspective as interpreted by the lens of the eye. In the world of illustration, the “picture plane” is actually the flat surface of the paper or computer screen, and the perception Of 3 dimensional depth or perspective is an artificial illusion. Perspective Drawing Tutorial – Picture Plane Drawing in Perspective The following diagram Fig. Is a sample of the typical reference material you eight expect to receive on a technical illustration project, All of the major plan and elevation views are represented here as well as an Isometric view. From this reference, we will construct a variety of perspective views in the tutorials that follow this page. Reference Sample In the following six examples, you will see a perspective grid and our subject in various aspects discussed in the previous paragraph, Fig. 8 is a Normal View 1 Point Perspective drawing. Fig. 9 is a Worm’s Eye View 1 Point Perspective drawing. Fig. 10 is a Bird’s Eye I Point Perspective drawing.

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Fig. II is a Bird’s Eye or High 3/4 View 2 Point Perspective drawing. Fig. 12 is a Bird’s Eye 3 Point Perspective drawing. If you were to extend the vertical vanishing point lines downward, they would converge at the Nadir Station point. Perspective Grid Fig. 8, 9, and 10 2 Point w, 3 Point Perspective Perspective Grid Pig. II and 12 Perspective vs. Isometric Drawing By now you may have noticed that perspective drawing techniques differ from other types of commonly seen technical imagery. In Fig. 13 you have three examples of 3/4 view illustrations that are not in perspective view.

They re classified as Isometric, Diametric, and Trimester drawings. In these types of illustrations all parallel lines remain parallel and therefore, never converge at a single point. Although they can be very useful for conveying technical intimation, they lack the quality of realism when compared to the perspective view drawing example in Fig, 14. Perspective Isometric Drawing Continue to – 2 Point Perspective Drawing Tutorial Back to – Illustration Tutorials KHAKI Technical Illustration I Glossary Illustration Tutorials Copyright C 2008 Kevin Helsel Illustration, Inc. All rights reserved.

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Perspective Drawing Essay
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In the tutorial lessons that follow this page, you will be given the tools needed to map out a perspective grid for any s-dimensional situation. From this grid, you will be able to create realistic three dimensional drawings from flat or "Off Angle" reference. The three photos below demonstrate the difference between I-Point and Point Perspective, as well as 3-Point Perspective. The first photograph (Fig. 1) is an example of one-point perspective. All of the major Vanishing Po
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