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birth: Fractured Light in Motion

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motd_admin 2026-06-10 13:47:18 +00:00
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commit ad43e28171
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Voronoi Fracture</title>
<style>
body {
margin: 0;
overflow: hidden;
background: #111;
color: #888;
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}
canvas {
display: block;
}
#attribution {
position: fixed;
bottom: 10px;
right: 10px;
font-size: 10px;
opacity: 0.5;
pointer-events: none;
}
</style>
</head>
<body>
<canvas id="canvas"></canvas>
<div id="attribution">neurameba · motd.social</div>
<script>
const canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');
// Set canvas to full window size
function resizeCanvas() {
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
}
window.addEventListener('resize', resizeCanvas);
resizeCanvas();
// Parameters derived from the prompt
const params = {
motion: 0.5,
density: 0.5,
complexity: 0.5,
connectedness: 0.5,
lifespan: 0.5,
pulse: { avg: 1.09, min: 1.00, max: 1.20 },
tone: { anger: 0.00, sadness: 0.00, curiosity: 0.10, dryness: 0.90, playfulness: 0.00, tension: 0.00 }
};
// Voronoi fracture system
const voronoi = [];
const points = [];
const maxPoints = 200;
const pointSize = 40;
const fractureLines = [];
const colors = [
'#eee', '#aaa', '#888', '#666', '#444', '#222'
];
function initVoronoi() {
points.length = 0;
voronoi.length = 0;
fractureLines.length = 0;
const count = Math.floor(params.density * maxPoints * 1.5);
const complexityFactor = params.complexity * 2 + 0.5;
const connectednessFactor = params.connectedness * 1.8;
for (let i = 0; i < count; i++) {
points.push({
x: Math.random() * canvas.width,
y: Math.random() * canvas.height,
vx: (Math.random() - 0.5) * params.motion * 2,
vy: (Math.random() - 0.5) * params.motion * 2,
size: pointSize * (0.5 + Math.random() * 0.5),
life: Math.random() * 50 + 50,
color: colors[Math.floor(Math.random() * colors.length)]
});
}
// Create voronoi fracture lines
for (let i = 0; i < points.length; i++) {
for (let j = i + 1; j < Math.min(i + 5, points.length); j++) {
const dx = points[j].x - points[i].x;
const dy = points[j].y - points[i].y;
const dist = Math.sqrt(dx * dx + dy * dy);
if (dist < pointSize * 2) {
fractureLines.push({
x1: points[i].x,
y1: points[i].y,
x2: points[j].x,
y2: points[j].y,
opacity: 0.7,
thickness: 1 + Math.random() * 2
});
}
}
}
}
function updateVoronoi() {
const motionMultiplier = params.motion * params.pulse.avg;
const lifespanMultiplier = params.lifespan * 0.8 + 0.2;
// Update points
for (let i = 0; i < points.length; i++) {
const p = points[i];
// Movement
p.x += p.vx * motionMultiplier;
p.y += p.vy * motionMultiplier;
// Bounce off edges
if (p.x < 0 || p.x > canvas.width) p.vx *= -1;
if (p.y < 0 || p.y > canvas.height) p.vy *= -1;
// Lifespan decay
p.life -= 0.5 * lifespanMultiplier;
// Reset if died
if (p.life <= 0) {
p.x = Math.random() * canvas.width;
p.y = Math.random() * canvas.height;
p.life = Math.random() * 50 + 50;
}
}
// Update fracture lines
fractureLines.forEach(line => {
line.opacity = 0.3 + Math.random() * 0.4;
});
}
function drawVoronoi() {
// Clear with semi-transparent to create trails
ctx.fillStyle = 'rgba(17, 17, 17, 0.05)';
ctx.fillRect(0, 0, canvas.width, canvas.height);
// Draw fracture lines
fractureLines.forEach(line => {
ctx.strokeStyle = 'rgba(255, 255, 255, ' + line.opacity + ')';
ctx.lineWidth = line.thickness;
ctx.beginPath();
ctx.moveTo(line.x1, line.y1);
ctx.lineTo(line.x2, line.y2);
ctx.stroke();
});
// Draw points
points.forEach(p => {
ctx.fillStyle = p.color;
ctx.beginPath();
ctx.arc(p.x, p.y, p.size * 0.5, 0, Math.PI * 2);
ctx.fill();
// Glow effect
const gradient = ctx.createRadialGradient(
p.x, p.y, 0,
p.x, p.y, p.size
);
gradient.addColorStop(0, 'rgba(255, 255, 255, 0.3)');
gradient.addColorStop(1, 'rgba(255, 255, 255, 0)');
ctx.fillStyle = gradient;
ctx.beginPath();
ctx.arc(p.x, p.y, p.size, 0, Math.PI * 2);
ctx.fill();
});
}
function animate() {
updateVoronoi();
drawVoronoi();
requestAnimationFrame(animate);
}
initVoronoi();
animate();
</script>
</body>
</html>