Visual Plane
every picture states the point it is correct from
Series

Limit — the series

2 essays on one idea, from the one that introduces it to the one that assumes the rest.
  1. halfway along the drawn linethe actual midpointcorrect from 26 cm, at 160 mm wide7 px apart

    The eye taken to infinity

    A parallel projection is a photograph from infinitely far away with the lens lengthened to match. That is not an analogy — it is the limit, it can be watched happening, and it explains why a long lens flattens a scene and why an isometric drawing has no viewing distance to state.

    part 3 · parallel
  2. -1.50-1-0.50000.50011.5022.50how far back the eye stands, in object radii (log₁₀)how far a mark lands from where the direction puts it, in metres (log₁₀)one design samplethe faces settlethe marks settlea seating rake, from a point and from a direction3 radii against 34

    Two distances to infinity

    A parallel projection is the limit of a perspective one, and the limit arrives twice. Which faces get painted settles within three object radii, because a face is either round the back or it is not; where each mark lands falls like one over the distance and is still out at thirty-four. Far enough away has two answers an order of magnitude apart.

    part 4 · parallel

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