Two-Point Perspective

Two-Point Perspective

In one-point perspective one face is parallel to the picture plane and stays true. In two-point perspective the object is turned so that no face is parallel to the picture plane — only the vertical edges remain vertical, and the two sets of horizontal edges recede to two vanishing points, both on the horizon.

The setup. Horizon line at eye level; two vanishing points on it, usually well apart; the nearest vertical edge of the object drawn true height. From the top and bottom of that edge, lines run to both vanishing points, and the object is built between them.

Why the leading edge is true height. It touches the picture plane, so it alone is undistorted. Every other vertical is shorter, and its height is found by projecting from the leading edge rather than measured.

Worked example. A building corner viewed from the street: the corner edge is drawn true height, the wall going left recedes to VP1, the wall going right recedes to VP2. Placing the vanishing points too close together produces the violently distorted look of a wide-angle lens — technically constructed, but visually wrong.

Core checkpoint: Verticals stay vertical. Everything horizontal recedes to one of the two vanishing points, and heights are projected, never measured.