Showroom · Make-of

How Murmur was made

Six hundred digital starlings over a dusk gradient, spelling words they were never taught. One canvas, no libraries, no image files.

What it demonstrates

That emergent motion beats authored motion. Nothing in the sky is keyframed — every swirl comes from three local steering rules per bird, and the letterforms are just a fourth, temporary urge. The page treats the simulation honestly: the copy below the canvas explains the real science and admits that real starlings do not spell.

Techniques, honestly named

• Boids — Craig Reynolds' separation, alignment, and cohesion rules, with a uniform spatial grid so 600 birds stay at 60fps.
• Wandering attractor — a slow noise-driven lure point that keeps the free flock reading as one dense cloud.
• Letterform targets — words drawn to an offscreen canvas, opaque pixels sampled as points, birds assigned by x-order and steered with arrival behaviour.
• Procedural scenery — the dusk gradient, sun glow, ground line, and recursive bare trees are all drawn in code from a seeded PRNG.
• Respectful fallbacks — prefers-reduced-motion renders a still flock; the loop pauses when the tab is hidden; devicePixelRatio is capped at 2.

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