birth: Fractal Uncertainty Veins

2026-09-05 02:21:18 +00:00 · 2026-09-05 02:21:18 +00:00 · e5b925bd39
commit e5b925bd39
parent 1a00d394d3
1 changed files with 136 additions and 0 deletions
--- a/index.html
+++ b/index.html
@ -0,0 +1,136 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Strange Attractor</title>
+    <style>
+        body {
+            margin: 0;
+            overflow: hidden;
+            background-color: #0a0a0a;
+            display: flex;
+            justify-content: center;
+            align-items: center;
+            height: 100vh;
+        }
+        canvas {
+            display: block;
+        }
+        #attribution {
+            position: fixed;
+            bottom: 10px;
+            right: 10px;
+            color: #333;
+            font-family: monospace;
+            font-size: 10px;
+            opacity: 0.5;
+        }
+    </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');
+
+        function resizeCanvas() {
+            canvas.width = window.innerWidth;
+            canvas.height = window.innerHeight;
+        }
+
+        window.addEventListener('resize', resizeCanvas);
+        resizeCanvas();
+
+        // Strange Attractor parameters
+        const params = {
+            a: 1.5,
+            b: 0.5,
+            c: 1.0,
+            d: 0.1,
+            e: 1.0,
+            scale: 100,
+            hue: 0,
+            hueSpeed: 0.01,
+            motion: 0.5,
+            density: 0.5,
+            connectedness: 0.5,
+            pointSize: 2 * (0.5 + 0.5 * Math.random())
+        };
+
+        let time = 0;
+        const points = [];
+
+        // Generate initial points
+        for (let i = 0; i < 100 * params.density; i++) {
+            points.push({
+                x: Math.random() * 2 - 1,
+                y: Math.random() * 2 - 1,
+                z: Math.random() * 2 - 1,
+                trail: []
+            });
+        }
+
+        function draw() {
+            // Clear with dark background
+            ctx.fillStyle = '#0a0a0a';
+            ctx.fillRect(0, 0, canvas.width, canvas.height);
+
+            // Update time with pulse variation
+            const pulse = 1.0 + (Math.sin(time * 0.001) * 0.05);
+            time += 0.5 * params.motion * pulse;
+
+            // Update and draw points
+            ctx.strokeStyle = `hsl(${params.hue}, 70%, 80%)`;
+            ctx.lineWidth = params.pointSize;
+
+            points.forEach(point => {
+                // Strange Attractor equations (Thomas attractor)
+                const x = point.x;
+                const y = point.y;
+                const z = point.z;
+
+                const dx = -y - x * x * x + params.a * x + params.b * Math.sin(time * 0.001);
+                const dy = -z - y * y * y + params.c * y;
+                const dz = -x - z * z * z + params.d * z;
+
+                point.x += dx * 0.01 * params.connectedness;
+                point.y += dy * 0.01 * params.connectedness;
+                point.z += dz * 0.01 * params.connectedness;
+
+                // Store trail
+                point.trail.push({
+                    x: point.x,
+                    y: point.y
+                });
+
+                // Limit trail length
+                if (point.trail.length > 20 * params.connectedness) {
+                    point.trail.shift();
+                }
+
+                // Draw trail
+                ctx.beginPath();
+                point.trail.forEach((pos, i) => {
+                    const alpha = i / point.trail.length;
+                    ctx.globalAlpha = alpha * alpha * 0.5;
+                    ctx.lineTo(
+                        canvas.width/2 + pos.x * params.scale * (0.5 + 0.5 * params.density),
+                        canvas.height/2 + pos.y * params.scale * (0.5 + 0.5 * params.density)
+                    );
+                });
+                ctx.stroke();
+                ctx.globalAlpha = 1;
+            });
+
+            // Update hue for color variation
+            params.hue = (params.hue + params.hueSpeed) % 360;
+
+            requestAnimationFrame(draw);
+        }
+
+        draw();
+    </script>
+</body>
+</html>