Pencil of Nature

PN.26.018. Art. Studio project, 2026.

Seven Weathers

Seven algorithms, one climate. Drizzle is falling strokes, Anticyclone is contour lines, Hard Frost is one rule about sixty degrees.

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Red and blue flow lines meeting at a weather front.
Occluded Front
Isobars around a golden high pressure centre.
Anticyclone
White curl-noise lines on black with one yellow lightning bolt.
Squall Line
Hexagonal frost dendrites growing in from the edges of deep blue.
Hard Frost
A sun engraved in horizontal lines over a shimmering red ground.
Heat Dome
Tens of thousands of fine falling strokes in grey.
Drizzle

The brief

Create a generative art series with real variety, and let visitors explore it.

The idea

Weather is the oldest generative art: set a gradient, step back, and everything visible is that gradient working itself out. Each piece here starts from a field, not a composition. A philosophy document, Pressure Systems, was written before any code.

Decisions

  • Seven different algorithms, because a series should not be one trick with seven palettes.
  • Every control has a physical meaning: density, turbulence and ink weight.
  • Same seed always gives the same afternoon.
  • Close up, each print dissolves into legible individual marks.

How it came together

  1. Wrote the philosophy before any code.
  2. Built seven separate systems sharing one seeded engine.
  3. Reworked Drizzle after the first contact sheet showed it was too pale.
  4. Printed every piece at 2,400 px from the live page.

How it works

p5.js supplies seeded random and noise, and the drawing uses the raw canvas context for speed. Anticyclone uses marching squares, Squall uses curl noise, and Hard Frost is recursive sixty-degree branching.

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