One-Point Perspective

Illustrator Draftsman 3 & 2 - Volume 2 Standard Practices and Theory
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One-Point Perspective Introduction One-point perspective is when an object is directly in front of an observer and not seen at an angle. The principal surface of an object is parallel to the picture plane and to the station point. The remaining structure of the object is perpendicular to the picture plane. For this reason, one-point perspective is also called parallel perspective. One of the most common uses of one- point perspective is in interior architectural illustrations. For interesting study on one-point perspective, study tromp-l’œil drawings and paintings. One-point or parallel perspective One-point or parallel perspective places two principal edges (height and width) of one surface of an object parallel to the picture plane. Height and width have no vanishing point and appear in true length since they are parallel to the picture plane. Only the depth dimension must be put in perspective, and this requires one vanishing point. The station point is in front and parallel to the object and the vanishing point is directly behind. To find the third dimension representing depth, project visual rays from the station point to the vanishing point. Changing the location of the vanishing point or raising and lowering the eye level affect perspective. Figure 5-12 shows one-point perspective with vanishing points behind and above the cube or object. Figure 5-12.—One-point perspective. 5-13

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