Trevi Fountain, Piazza di Trevi, Rome

Photograph Copyright ©2011 Loo Yen Yeo. All Rights Reserved.

Concept: Eye-lines (looking at another object); Diagonal lines (ordering); Cartesian lines (vertical);

Description: In Nicola Salvi's sumptuous baroque creation, the central figure of Oceanus stands in an alcove on a shell reminiscent of Botticelli's 'Birth of Venus', his eye-line directing ours to the rearing mount of a triton in front of him. Eye-lines from the allegories of Abundance (left) and Salubrity (right) reinforce the vector.

Salvi's design utilises a framework of vertical elements: Corinthian columns varying in scale to create a bulge in the middle of the façade with a semi-domed recess; from which spill irregular shapes of statuary, lent dynamism by the also-issuing water.

This image was cropped to emphasise the diagonal of morning light from top-right to bottom left; a line which imposes order on the composition: from the Corinthian capital of the right-most column, to the frieze atop the right-most column of the alcove, then Oceanus and his eye-line, ending finally at the tension in the triton-horse sculptural group.

Title: --

03.07 Eye-lines

The strongest implied line is the eye-line - the direction which someone is looking at. The eye-line owes its insistence to three factors:

1. the high visual weight of the human face;
2. the high visual weight of the eyes in the human face; and
3. the Gestalt theory of Continuity.

Simply put, we want to see what others are looking at, because what interests someone else might well interest us too.

If eye-lines are present in a composition, they will nearly always be important structural elements because of their hard-to-dilute inherent power of directing the viewing eye. Eye-lines take two common forms:

• Direct eye-contact with the viewer
  The observer has direct first-person involvement with the image. This kind of eye-line is the highest attractant.
• Looking at another object
  Used to point out an object of interest, the observer has a third-person involvement. If the eye-line is directed at something out of frame, this introduces ambiguity which creates either delay or a sense of suspension.