Culture · 6 pages · 12 min

How perspective is a geometry

Linear perspective is a projection: receding parallels meet because the construction puts them there.

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From the opening

Linear perspective is a geometric projection, a way of mapping edges in space onto a flat picture so that parallels receding from the viewer meet at a vanishing point. It is not a mood and not a talent, and it is a construction you can draw with lines. The opening covers a viewpoint and a picture plane, one vanishing point or two, and why a tiled floor can be checked.

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Inside

A viewpoint and a picture plane
One vanishing point or two
Why a tiled floor can be checked
Aerial perspective is another cue
Where the idea stops applying
A distinction worth keeping

Sources

Alberti's costruzione legittima for painters
Brunelleschi's demonstration of linear perspective

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How perspective is a geometry

From the opening

Inside

Sources

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