Perspective Drawing
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Technical Illustrations
Basic Principles Of Perspective Drawing For The Technical Illustrator
By Kevin Hulsey
Perspective Basics
A thorough understanding of the principles of 1-Point and 2-Point Perspective is essential to creating an accurate, and visually appealing piece of art. A lay-person with no technical understanding of the principles of perspective drawing will nonetheless have an intuitive negative reaction to a piece of art in which something is amiss. Using the perspective techniques shown in the preceding tutorials, the mental impression they will make on a viewer will be so strong that once mastered, the illusion of 3-dimensional depth will remain, even when the visual trickery involved in the process has been revealed.
Any good technical illustration starts with well executed line art. If you are working from any type of reference other than a CAD output in the desired angle, you will need to have a strong fundamental understanding of the principles of perspective drawing. This page will cover the various types of perspective angles you will encounter. 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 1-Point and 2-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 horizon line. The angle of view or Point Of View (POV) in Fig. 1 is referred to as Normal View perspective. In Fig. 2 the vanishing points for the two opposing faces of
Technical Illustrations
Basic Principles Of Perspective Drawing For The Technical Illustrator
By Kevin Hulsey
Perspective Basics
A thorough understanding of the principles of 1-Point and 2-Point Perspective is essential to creating an accurate, and visually appealing piece of art. A lay-person with no technical understanding of the principles of perspective drawing will nonetheless have an intuitive negative reaction to a piece of art in which something is amiss. Using the perspective techniques shown in the preceding tutorials, the mental impression they will make on a viewer will be so strong that once mastered, the illusion of 3-dimensional depth will remain, even when the visual trickery involved in the process has been revealed.
Any good technical illustration starts with well executed line art. If you are working from any type of reference other than a CAD output in the desired angle, you will need to have a strong fundamental understanding of the principles of perspective drawing. This page will cover the various types of perspective angles you will encounter. 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 1-Point and 2-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 horizon line. The angle of view or Point Of View (POV) in Fig. 1 is referred to as Normal View perspective. In Fig. 2 the vanishing points for the two opposing faces of