Perspective, Distance and Depth

 Key words and Definitions

Linear Perspective

Based on lines - the edges of objects. The receding edges are projected into space and continued along until they meet a point on the horizon line.

Atmospheric Pressure

The effect air has on light passing through it. The more air, the more noticeable the effect will be. The most common example is the way the colours of objects in an outdoor scene shift towards blue as they get further away.They also lose contrast and sharpness.

The Horizon Line

A Horizontal line which represents the height from which the artist is viewing the scene. It can be anywhere. Everything above that is being looked up at, everything below is being looked down upon.

The Vanishing Point

A point on the horizon which all parallel lines from an object converge. There can be more than one vanishing point depending on perspective.

One-point Perspective

Occurs when you and all the objects are parallel to each other. Like looking down an isle in a cathedral. The edge closest is the leading edge.

Two-point Perspective

This occurs when the angle of objects are at an angle to you, not parallel. There will be 2 vanishing points.

Three-point Perspective

Is similar to two-point, but the third vanishing point is above or below the horizon line.

The Vanishing Trace

Is a point above or below the horizon line for vertical objects or along the horizon line for horizontal objects. It is used to determine correct and even spacing for objects.