Vanishing point

Vanishing point, in the system of linear perspective, is the point at which distant parallel lines, seen in perspective, appear to converge. Although in real three-dimensional space such lines never intersect, on the plane of the picture they seem to meet at a common point, usually situated on the horizon line, thereby creating a convincing impression of depth and distance. In the simplest, one-point perspective, all lines directed into the depth of space converge towards a single central vanishing point; in two-point perspective, used to depict objects at an angle, two vanishing points on the horizon are used; more complex constructions involve three or more points. The concept of the vanishing point is fundamental to the mathematical theory of perspective developed in Renaissance Italy by Brunelleschi and Alberti. The correct placement of the vanishing point determines the viewpoint and direction of gaze within a picture. This concept remains basic to painting, drawing, architectural draughtsmanship, and any realistic depiction of space.