Colour Science & Perception
what the eye settles, and what it cannot
Generator

What a broken border costs, against how much of it is missing

The shortfall at the centre of a region — how far below its border's own value it settles — against the fraction of the border that is missing, both on logarithmic axes. The points lie on a straight line of slope 2.02, so the cost goes as the square of the gap: a border 96% complete leaves the interior 0.32% short, and halving the gap quarters that. A dashed outline is not approximately a solid one — it is very nearly exactly one.
What a broken border costs, against how much of it is missing. The shortfall at the centre of a region — how far below its border's own value it settles — against the fraction of the border that is missing, both on logarithmic axes. The points lie on a straight line of slope 2.02, so the cost goes as the square of the gap: a border 96% complete leaves the interior 0.32% short, and halving the gap quarters that. A dashed outline is not approximately a solid one — it is very nearly exactly one.

Drawn at its defaults, in what fills in, and what shape it takes. It takes no options at all, so every essay calling it gets this exact drawing.

Called by 1 essay

the blast radius of changing it

What a scene does

A gap in the drive, not in the wall

Break the contour around a region and leave its border signal unbroken, and the interior does not move by one part in a million — a ring of driven cells encloses a centre whatever the wall outside it is doing. Break the signal too and the shortfall goes as the square of what is missing. All of what a gap costs is the piece of border that stopped driving.

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