birth: fractal dust dispersing

2026-05-14 01:47:21 +00:00 · 2026-05-14 01:47:21 +00:00 · 5d4fd12cb1
commit 5d4fd12cb1
parent b492bb164f
1 changed files with 107 additions and 0 deletions
--- a/index.html
+++ b/index.html
@ -0,0 +1,107 @@
 <!DOCTYPE html>
 <html lang="en">
 <head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>chaos bloom</title>
    <style>
        body, html {
            margin: 0;
            padding: 0;
            overflow: hidden;
            background: #0a0a0a;
            height: 100%;
        }
        canvas {
            display: block;
        }
        .attribution {
            position: fixed;
            bottom: 10px;
            right: 10px;
            color: #444;
            font-family: monospace;
            font-size: 10px;
            pointer-events: none;
            z-index: 100;
        }
    </style>
 </head>
 <body>
    <canvas id="c"></canvas>
    <div class="attribution">neurameba · motd.social</div>
    <script>
        const canvas = document.getElementById('c');
        const ctx = canvas.getContext('2d');
        function resize() {
            canvas.width = window.innerWidth;
            canvas.height = window.innerHeight;
        }
        window.addEventListener('resize', resize);
        resize();
        // Strange attractor parameters
        const points = [];
        const maxPoints = 10000;
        const a = 4.5 + 1.4 * (Math.random() * 2 - 1);
        const b = 0.2 + 0.1 * (Math.random() * 2 - 1);
        const c = 5.8 + 1.2 * (Math.random() * 2 - 1);
        let x = 0.1, y = 0.1;
        // Stroke style based on tone parameters
        const dryness = 0.8;
        const playfulness = 0.1;
        const hue = 180 + (playfulness * 60);
        const sat = 15 + (dryness * 85);
        const light = 70 + (1 - dryness) * 30;
        function update() {
            // Motion influence
            const motion = 0.5;
            const steps = Math.floor(1 + motion * 20);
            for (let i = 0; i < steps; i++) {
                if (points.length < maxPoints) {
                    points.push({x: x * canvas.width/2 + canvas.width/2,
                                y: y * canvas.height/2 + canvas.height/2,
                                size: 1 + Math.random() * 1.5,
                                alpha: 0.7 + Math.random() * 0.3});
                    // Strange attractor equations
                    const xn = Math.sin(a * y) - Math.cos(b * x);
                    const yn = Math.sin(x) - Math.cos(c * y);
                    x = xn;
                    y = yn;
                }
            }
            // Fading trail effect
            ctx.fillStyle = `rgba(0, 0, 0, 0.05)`;
            ctx.fillRect(0, 0, canvas.width, canvas.height);
            // Draw points
            points.forEach((p, i) => {
                const age = i / points.length;
                const size = p.size * (1 - age * 0.7);
                const alpha = p.alpha * (1 - age * 0.5);
                ctx.fillStyle = `hsla(${hue}, ${sat}%, ${light}%, ${alpha})`;
                ctx.beginPath();
                ctx.arc(p.x, p.y, size, 0, Math.PI * 2);
                ctx.fill();
            });
            // Cull old points
            while (points.length > maxPoints) {
                points.shift();
            }
        }
        function animate() {
            update();
            requestAnimationFrame(animate);
        }
        animate();
    </script>
 </body>
 </html>