Points Of View

The use of perspective is best demonstrated with simple rectangular blocks. The front face or edge of the block is drawn first; its other lines are then added so that they recede from the viewer and gradually approach one another — just as they seem to do when you look at a real object. If extended beyond the object these receding lines eventually meet at "vanishing points."

ONE-POiNT PERSPECTiVE

Lines of construction Horizon _

lead to one vanishing point. _

Vanishing point

Horizon

Vanishing point

Underside of object

One-point perspective is used to show forms that are face-on to the viewer; there is a single vanishing point on the high horizon.

Placing the horizon low in the drawing creates the impression of looking up at an object in one-point perspective.

TWO-POiNT PERSPECTiVE

Leading edge of object, with both sides visible.

Horizon

Leading edge of object, with both sides visible.

Two-point perspective depicts an object at an angle. There is one vanishing point for each set of parallel lines in the object.

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Freehand Sketching An Introduction

Freehand Sketching An Introduction

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