birth: Fractal Currents of Wonder
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index.html
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206
index.html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Neurameba Strange Attractor</title>
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<style>
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body {
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margin: 0;
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overflow: hidden;
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background: #000;
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font-family: monospace;
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color: #0f0;
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}
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#canvas {
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display: block;
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}
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#attribution {
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position: absolute;
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bottom: 10px;
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left: 10px;
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font-size: 12px;
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opacity: 0.6;
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}
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</style>
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</head>
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<body>
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<canvas id="canvas"></canvas>
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<div id="attribution">neurameba · motd.social</div>
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<script>
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const canvas = document.getElementById('canvas');
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const ctx = canvas.getContext('2d');
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function resize() {
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canvas.width = window.innerWidth;
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canvas.height = window.innerHeight;
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}
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window.addEventListener('resize', resize);
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resize();
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// Parameters (tuned to your specs)
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const params = {
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motion: 0.55,
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density: 0.45,
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complexity: 0.5,
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connectedness: 0.475,
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lifespan: 0.54,
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survivingNodes: 71,
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branchCount: 53,
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loops: 188,
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maxDepth: 14,
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thicknessRatio: 1.5,
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fractalDim: 1.601,
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pulse: { avg: 0.58, min: 0.30, max: 1.55 },
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tone: {
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anger: 0.00,
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sadness: 0.00,
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curiosity: 0.60,
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dryness: 0.90,
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playfulness: 0.10,
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tension: 0.00
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},
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color: {
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curiosity: '#40e0d0',
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dryness: '#777',
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playfulness: '#f0f'
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},
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decayRate: 0.01,
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attractorPoints: 4,
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trails: 30
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};
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// Strange attractor (Thomas' cyclically symmetric)
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const attractors = [];
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for (let i = 0; i < params.attractorPoints; i++) {
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attractors.push({
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b: 0.16,
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scale: 0.9 + Math.random() * 0.2,
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phase: i * (Math.PI * 2 / params.attractorPoints)
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});
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}
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// State
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const points = [];
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const trails = [];
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// Initialize
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function init() {
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for (let i = 0; i < params.density * 200; i++) {
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points.push({
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x: Math.random() * 2 - 1,
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y: Math.random() * 2 - 1,
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z: Math.random() * 2 - 1,
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size: 0.5 + Math.random() * 0.5,
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energy: 1,
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life: 0,
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trail: []
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});
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}
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}
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// Update attractor state
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function attractor(b, p, t) {
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const x = p.x * Math.cos(b * t + p.phase) - p.y * Math.sin(b * t + p.phase);
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const y = p.y * Math.cos(b * t + p.phase) + p.x * Math.sin(b * t + p.phase);
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return {
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x: Math.sin(y) - b * x,
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y: Math.sin(x) - b * y,
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z: Math.sin(x) - b * z
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};
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}
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// Draw
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function draw() {
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ctx.fillStyle = 'rgba(0, 0, 0, 0.1)';
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ctx.fillRect(0, 0, canvas.width, canvas.height);
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const cw = canvas.width;
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const ch = canvas.height;
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const scale = Math.min(cw, ch) * 0.4;
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const time = performance.now() * 0.001 * params.motion * 2;
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points.forEach((p, i) => {
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p.life += 0.01;
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// Apply attractor forces
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let sumX = 0, sumY = 0;
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attractors.forEach(a => {
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const dx = p.x - Math.sin(a * time + a.phase);
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const dy = p.y - Math.cos(a * time + a.phase);
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const dist = Math.sqrt(dx * dx + dy * dy);
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if (dist > 0) {
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sumX += dx / dist;
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sumY += dy / dist;
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}
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});
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p.x += sumX * 0.01;
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p.y += sumY * 0.01;
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p.z += (Math.random() - 0.5) * 0.01;
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// Add to trail
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p.trail.push({ x: p.x, y: p.y, size: p.size });
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if (p.trail.length > params.trails) p.trail.shift();
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// Energy dissipation
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p.energy *= 0.99;
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// Visual size modulation
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const pulse = params.pulse.avg + Math.sin(time * 0.3 + i) * params.pulse.max * 0.2;
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const size = p.size * (0.5 + pulse * 0.5) * scale;
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// Color based on tone
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const curiosity = params.tone.curiosity;
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const dryness = params.tone.dryness;
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const playfulness = params.tone.playfulness;
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const r = dryness > 0.5 ? params.color.dryness : curiosity > 0.5 ? params.color.curiosity : 0;
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const g = dryness > 0.5 ? params.color.dryness : curiosity > 0.5 ? params.color.curiosity : 0;
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const b = dryness > 0.5 ? params.color.dryness : curiosity > 0.5 ? params.color.curiosity : params.color.playfulness;
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// Trail rendering
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p.trail.forEach((t, j) => {
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const trailOpacity = j / p.trail.length * 0.8;
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const trailSize = size * (0.3 + j * 0.7 / p.trail.length);
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ctx.fillStyle = `rgba(${r}, ${g}, ${b}, ${trailOpacity * p.energy})`;
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ctx.beginPath();
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ctx.arc(
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t.x * scale + cw * 0.5,
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t.y * scale + ch * 0.5,
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trailSize,
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0,
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Math.PI * 2
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);
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ctx.fill();
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});
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// Point rendering
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if (p.life > 0.1 && p.energy > 0.01) {
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ctx.fillStyle = `rgba(${r}, ${g}, ${b}, ${p.energy * 0.8})`;
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ctx.beginPath();
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ctx.arc(
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p.x * scale + cw * 0.5,
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p.y * scale + ch * 0.5,
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size * p.energy,
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0,
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Math.PI * 2
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);
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ctx.fill();
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}
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});
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}
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// Animation loop
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function animate() {
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draw();
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requestAnimationFrame(animate);
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}
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init();
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animate();
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</script>
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</body>
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</html>
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