birth: Fractal Veins in Drift

2026-06-13 09:47:17 +00:00 · 2026-06-13 09:47:17 +00:00 · 8d14751e7c
commit 8d14751e7c
parent c2b0244839
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>Recursive Fractal Drift</title>
+    <style>
+        body {
+            margin: 0;
+            overflow: hidden;
+            background: #0a0a0a;
+            display: flex;
+            justify-content: center;
+            align-items: center;
+            height: 100vh;
+            color: #cccccc;
+            font-family: 'Courier New', monospace;
+            text-align: center;
+        }
+        canvas {
+            display: block;
+        }
+        #attribution {
+            position: absolute;
+            bottom: 20px;
+            font-size: 10px;
+            color: #666;
+            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');
+
+        function resizeCanvas() {
+            canvas.width = window.innerWidth;
+            canvas.height = window.innerHeight;
+        }
+        window.addEventListener('resize', resizeCanvas);
+        resizeCanvas();
+
+        const params = {
+            motion: 0.5,
+            density: 0.5,
+            complexity: 0.5,
+            connectedness: 0.5,
+            lifespan: 0.5,
+            pulse: { avg: 1.09, min: 1.0, max: 1.2 },
+            tone: { anger: 0.0, sadness: 0.0, curiosity: 0.1, dryness: 0.9, playfulness: 0.0, tension: 0.0 }
+        };
+
+        let t = 0;
+        let nodes = [];
+
+        function initNodes() {
+            nodes = [];
+            const count = 5 + Math.floor(params.density * 20);
+            for (let i = 0; i < count; i++) {
+                nodes.push({
+                    x: Math.random() * canvas.width,
+                    y: Math.random() * canvas.height,
+                    size: 1 + Math.random() * 3,
+                    angle: Math.random() * Math.PI * 2,
+                    depth: 0,
+                    color: `hsla(0, 0%, ${70 + Math.random() * 10}%, 0.8)`,
+                    branch: null
+                });
+            }
+        }
+
+        function drawFractalNode(x, y, size, angle, depth, parentColor) {
+            if (depth > 5) return;
+
+            const twist = Math.sin(t * 0.1 + depth) * 0.5;
+            const branchAngle = angle + twist;
+            const branchLength = size * (0.6 + Math.sin(t * 0.05) * 0.2);
+
+            const endX = x + Math.cos(branchAngle) * branchLength;
+            const endY = y + Math.sin(branchAngle) * branchLength;
+
+            const hue = 0;
+            const saturation = 10 + Math.sin(t * 0.02 + depth) * 5;
+            const lightness = 70 + Math.sin(t * 0.03 + depth) * 10;
+            const alpha = 0.7 * (1 - depth * 0.15);
+
+            ctx.strokeStyle = `hsla(${hue}, ${saturation}%, ${lightness}%, ${alpha})`;
+            ctx.lineWidth = size * (0.8 + Math.sin(t * 0.04) * 0.3);
+
+            ctx.beginPath();
+            ctx.moveTo(x, y);
+            ctx.lineTo(endX, endY);
+            ctx.stroke();
+
+            if (depth < 3 && Math.random() > 0.6) {
+                drawFractalNode(endX, endY, size * 0.6, branchAngle + Math.PI/4, depth+1, {h: hue, s: saturation, l: lightness});
+                drawFractalNode(endX, endY, size * 0.6, branchAngle - Math.PI/4, depth+1, {h: hue, s: saturation, l: lightness});
+            }
+        }
+
+        function animate() {
+            ctx.clearRect(0, 0, canvas.width, canvas.height);
+            ctx.fillStyle = 'rgba(0, 0, 0, 0.05)';
+            ctx.fillRect(0, 0, canvas.width, canvas.height);
+
+            const pulse = params.pulse.avg + Math.sin(t * 0.01) * 0.1;
+
+            for (let i = 0; i < nodes.length; i++) {
+                const node = nodes[i];
+                node.angle += (Math.random() - 0.5) * 0.02 * params.motion * pulse;
+                node.size = 1 + 2 * params.density * Math.sin(t * 0.03 + i);
+            }
+
+            for (let i = 0; i < nodes.length; i++) {
+                drawFractalNode(
+                    nodes[i].x,
+                    nodes[i].y,
+                    nodes[i].size,
+                    nodes[i].angle,
+                    0,
+                    null
+                );
+            }
+
+            t += 0.02;
+            requestAnimationFrame(animate);
+        }
+
+        initNodes();
+        animate();
+    </script>
+</body>
+</html>