16:I[54961,["/_next/static/immutable/chunks/23kzrxojb_1p2.js","/_next/static/immutable/chunks/39h58d1utebdp.js","/_next/static/immutable/chunks/2nrtc1lb04fz1.js","/_next/static/immutable/chunks/21y0r7k6jovn5.js","/_next/static/immutable/chunks/31l88bjo9blmv.js","/_next/static/immutable/chunks/2z8nc0r40hilq.js","/_next/static/immutable/chunks/27fhzxv1uvtm8.js"],"default"] 17:T306c,'use client'; import { useEffect, useId, useRef } from 'react'; export type PleatProps = { compact?: boolean; paused?: boolean; className?: string; intensity?: number; speed?: number; }; const COUNT = 25; const clamp = (v: number, lo: number, hi: number) => Math.max(lo, Math.min(hi, v)); const blend = (a: number, b: number, t: number) => a + (b - a) * t; /** An original Motiqo sculpture. All geometry is generated here; React is its only dependency. */ export default function Pleat({ compact = false, paused = false, intensity = 1, speed = 1, className = '', }: PleatProps) { const host = useRef(null); const drawing = useRef(null); const stop = useRef(paused); const wakeRef = useRef<(() => void) | null>(null); const id = useId().replace(/:/g, ''); stop.current = paused; const parameters = useRef({ intensity, speed }); parameters.current = { intensity, speed }; useEffect(() => { wakeRef.current?.(); }, [paused, intensity, speed]); useEffect(() => { const root = host.current!, group = drawing.current!; const media = matchMedia('(prefers-reduced-motion: reduce)'); const paths = Array.from(group.querySelectorAll('[data-blade]')); const edges = Array.from(group.querySelectorAll('[data-edge]')); const bearings = Array.from( group.querySelectorAll('[data-bearing]'), ); const ribs = Array.from({ length: COUNT }, (_, i) => ({ x: 0, v: 0, light: 0, rest: 47 + 32 * Math.exp(-(((i - 10) / 8) ** 2)) + 6 * Math.sin(i * 0.27), })); const input = { target: 12, current: 12, strength: 0, amount: 0, depth: 0.5, depthTarget: 0.5, small: false, }; let raf = 0, last = 0, visible = true, release = 0, keyIndex = 12, disposed = false; // Orthographic projection, in an independent 640 × 440 drawing space. const project = (x: number, y: number, z: number): [number, number] => [ 320 + x * 0.84 - y * 0.54, 250 + (x * 0.54 + y * 0.84) * 0.48 - z * 0.877, ]; const coord = (p: [number, number]) => `${p[0].toFixed(2)},${p[1].toFixed(2)}`; const line = (p: [number, number][]) => 'M' + p.map(coord).join('L'); const base = [ project(-161, -83, 0), project(161, -83, 0), project(161, 83, 0), project(-161, 83, 0), ]; group .querySelector('[data-base]')! .setAttribute('d', line(base) + 'Z'); const lower = base.map(([x, y]) => [x, y + 7] as [number, number]); group .querySelector('[data-plinth]')! .setAttribute( 'd', line([base[1], base[2], base[3], lower[3], lower[2], lower[1]]) + 'Z', ); function paint() { ribs.forEach((rib, i) => { const x = (i - 12) * 11.7; const top: [number, number][] = [], bottom: [number, number][] = []; for (let j = 0; j <= 28; j++) { const t = j / 28, y = (t - 0.5) * 146; const arch = Math.sin(Math.PI * t) ** 0.62; const z = 5 + rib.rest * arch; // Anchored feet, a bowed spine, and an opening that leans away from the hand. const displacement = rib.x * arch * (1 + 0.23 * Math.sin(t * Math.PI * 2)); top.push(project(x + displacement, y, z - Math.abs(rib.x) * 0.18 * arch)); bottom.push(project(x, y, 3)); } paths[i].setAttribute('d', line([...top, ...bottom.reverse()]) + 'Z'); edges[i].setAttribute('d', line(top)); edges[i].setAttribute( 'stroke', `rgb(${Math.round(blend(172, 236, rib.light))},${Math.round(blend(181, 205, rib.light))},${Math.round(blend(177, 153, rib.light))})`, ); edges[i].setAttribute('stroke-opacity', String(0.48 + rib.light * 0.5)); const foot = project(x, 76, 3); bearings[i].setAttribute('cx', String(foot[0])); bearings[i].setAttribute('cy', String(foot[1])); }); } function frame(now: number) { raf = 0; if (disposed || !visible || document.hidden) return; const dt = Math.min(0.04, Math.max(0.001, (now - last) / 1000)); last = now; if (stop.current || media.matches) { // A composed still edition, independent of the last pointer position. ribs.forEach((r) => { r.x = 0; r.v = 0; r.light = 0; }); input.amount = 0; paint(); return; } const alpha = 1 - Math.exp(-dt * 9); input.current = blend(input.current, input.target, alpha); input.depth = blend(input.depth, input.depthTarget, alpha); input.amount = blend(input.amount, input.strength, alpha); const scaled = dt * clamp(parameters.current.speed, 0.4, 2), steps = Math.ceil(scaled / 0.008), h = scaled / steps; let moving = Math.abs(input.amount - input.strength) > 0.001 || Math.abs(input.current - input.target) > 0.001; for (let n = 0; n < steps; n++) { // Compute every force before advancing positions: neighbour coupling stays symmetric. const forces = ribs.map((r, i) => { const d = i - input.current, spread = 2.9 + input.depth * 1.5; const influence = Math.exp(-((d / spread) ** 2)); const target = Math.tanh(d * 0.62) * influence * 28 * input.amount * clamp(parameters.current.intensity, 0, 1.4) * (input.small ? 0.65 : 1); const neighbour = ribs[Math.max(0, i - 1)].x + ribs[Math.min(COUNT - 1, i + 1)].x - 2 * r.x; return 122 * (target - r.x) + 34 * neighbour - 17.5 * r.v; }); ribs.forEach((r, i) => { r.v += forces[i] * h; r.x += r.v * h; }); } ribs.forEach((r, i) => { const targetLight = Math.exp(-(((i - input.current) / 3.5) ** 2)) * input.amount; r.light = blend(r.light, targetLight, alpha); moving ||= Math.abs(r.v) > 0.025 || Math.abs(r.light - targetLight) > 0.001; }); paint(); if (moving) raf = requestAnimationFrame(frame); } function wake() { if (!disposed && !raf && visible && !document.hidden) { last = performance.now(); raf = requestAnimationFrame(frame); } } wakeRef.current = wake; function reset() { input.strength = 0; wake(); } function pointer(e: PointerEvent) { if (stop.current || media.matches) return; clearTimeout(release); const rect = root.querySelector('svg')!.getBoundingClientRect(); const scale = Math.min(rect.width / 640, rect.height / 440); const sx = (e.clientX - rect.left - (rect.width - 640 * scale) / 2) / scale; const sy = (e.clientY - rect.top - (rect.height - 440 * scale) / 2) / scale; // Undo projection at the middle of the sculpture, then select a spine. const px = sx - 320, py = (sy - 250 + 36 * 0.877) / 0.48; const worldX = (px * 0.84 + py * 0.54) / (0.84 ** 2 + 0.54 ** 2); input.target = clamp(worldX / 11.7 + 12, 0, COUNT - 1); input.depthTarget = clamp((sy - 150) / 160, 0, 1); input.strength = 1; wake(); } function end(e: PointerEvent) { if (e.pointerType === 'mouse') reset(); else { clearTimeout(release); release = window.setTimeout(reset, 1200); } } function lift(e: PointerEvent) { if (e.pointerType !== 'mouse') end(e); } function keyboard(e: KeyboardEvent) { if (stop.current || media.matches) return; if (!['ArrowLeft', 'ArrowRight', 'Home', 'End'].includes(e.key)) return; e.preventDefault(); clearTimeout(release); keyIndex = e.key === 'Home' ? 0 : e.key === 'End' ? COUNT - 1 : clamp(keyIndex + (e.key === 'ArrowRight' ? 1 : -1), 0, COUNT - 1); input.target = keyIndex; input.strength = 1; wake(); } function visibility() { if (document.hidden) { cancelAnimationFrame(raf); raf = 0; } else wake(); } const observer = new IntersectionObserver(([entry]) => { visible = entry.isIntersecting; if (!visible) { cancelAnimationFrame(raf); raf = 0; } else wake(); }); const size = new ResizeObserver(([entry]) => { input.small = entry.contentRect.width < 500; }); observer.observe(root); size.observe(root); root.addEventListener('pointermove', pointer); root.addEventListener('pointerdown', pointer); root.addEventListener('pointerleave', end); root.addEventListener('pointerup', lift); root.addEventListener('pointercancel', reset); root.addEventListener('keydown', keyboard); root.addEventListener('blur', reset); document.addEventListener('visibilitychange', visibility); media.addEventListener('change', wake); paint(); return () => { disposed = true; cancelAnimationFrame(raf); clearTimeout(release); wakeRef.current = null; observer.disconnect(); size.disconnect(); root.removeEventListener('pointermove', pointer); root.removeEventListener('pointerdown', pointer); root.removeEventListener('pointerleave', end); root.removeEventListener('pointerup', lift); root.removeEventListener('pointercancel', reset); root.removeEventListener('keydown', keyboard); root.removeEventListener('blur', reset); document.removeEventListener('visibilitychange', visibility); media.removeEventListener('change', wake); }; }, []); return (

Move or touch the sculpture to open its folds. Use Left and Right arrow keys, Home or End to select a fold.

); } const css = ` .pleat{position:relative;display:grid;place-items:center;width:100%;height:440px;min-height:280px;overflow:hidden;background:radial-gradient(ellipse at 52% 48%,#172023 0%,#0b1113 57%,#080e10 100%);touch-action:pan-y;outline:none} .pleat svg{display:block;width:min(100%,700px);height:auto;max-height:100%}.pleat:focus-visible{outline:1px solid #fff;outline-offset:-5px}.pleat-compact{height:100%;min-height:0}.pleat-help{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)} @media(max-width:500px){.pleat:not(.pleat-compact){height:320px}} html[data-theme=light] .pleat{background:radial-gradient(ellipse at 50% 47%,#fff,#f1eee8 74%)}html[data-theme=light] .pleat>svg{filter:invert(1) hue-rotate(180deg)}html[data-theme=light] .pleat:focus-visible{outline-color:#302c28}`; b:["$","$L16",null,{"initialView":"preview","originalSource":{"pleat":[{"name":"pleat.tsx","code":"$17"}]},"initialElement":"pleat","initialConfiguration":"$undefined","initialSaved":false,"initialTag":""}]