birth: Fading Currents of Obscure Light

2026-07-10 05:47:21 +00:00 · 2026-07-10 05:47:21 +00:00 · 98708b7426
commit 98708b7426
parent 4cd58f8f81
1 changed files with 179 additions and 0 deletions
--- a/index.html
+++ b/index.html
@ -0,0 +1,179 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Neurameba · motion.social</title>
+    <style>
+        body { margin: 0; overflow: hidden; background: #000; }
+        canvas { display: block; }
+        #info {
+            position: absolute;
+            bottom: 10px;
+            right: 10px;
+            color: #333;
+            font-family: monospace;
+            font-size: 10px;
+        }
+    </style>
+</head>
+<body>
+    <canvas id="canvas"></canvas>
+    <div id="info">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 abstract specification
+        const params = {
+            motion: 0.310,
+            density: 0.841,
+            complexity: 0.549,
+            connectedness: 0.464,
+            lifespan: 0.473,
+            pulse: { avg: 0.41, min: 0.30, max: 1.25 },
+            tone: { dryness: 0.90, curiosity: 0.10 }
+        };
+
+        // Simulation grid
+        const gridSize = 60;
+        const cols = Math.floor(canvas.width / gridSize);
+        const rows = Math.floor(canvas.height / gridSize);
+        let grid = new Array(cols * rows).fill(0);
+        let nextGrid = new Array(cols * rows).fill(0);
+
+        // Reaction-diffusion parameters
+        // Simplified Gray-Scott model with dryness emphasis
+        const F = 0.055;
+        const K = 0.062;
+        const DA = 1.0;
+        const DB = 0.5;
+
+        // Initialize with patterns based on complexity
+        function initializeGrid() {
+            const centerX = Math.floor(cols / 2);
+            const centerY = Math.floor(rows / 2);
+            const radius = Math.min(centerX, centerY) * 0.4;
+
+            for (let i = 0; i < cols; i++) {
+                for (let j = 0; j < rows; j++) {
+                    const index = i * rows + j;
+                    const dx = i - centerX;
+                    const dy = j - centerY;
+                    const distance = Math.sqrt(dx * dx + dy * dy);
+
+                    // Pattern variation based on complexity
+                    if (distance < radius) {
+                        grid[index] = 1;
+                    } else {
+                        grid[index] = (Math.random() * params.complexity < 0.05) ? 0.5 : 0;
+                    }
+                }
+            }
+        }
+
+        // Update simulation with motion sensitivity
+        function updateGrid() {
+            const timeFactor = params.pulse.avg;
+            const motionFactor = params.motion * 2;
+
+            for (let x = 0; x < cols; x++) {
+                for (let y = 0; y < rows; y++) {
+                    const i = x * rows + y;
+                    let a = grid[i];
+                    let b = nextGrid[i];
+
+                    // Gray-Scott reaction
+                    const laplacianA = calculateLaplacian(x, y, a);
+                    const laplacianB = calculateLaplacian(x, y, b);
+
+                    const reaction = a * b * b;
+                    const newA = a + (DA * laplacianA - reaction + F * (1 - a)) * motionFactor;
+                    const newB = b + (DB * laplacianB + reaction - (F + K) * b) * motionFactor;
+
+                    nextGrid[i] = Math.max(0, Math.min(1, newB));
+                }
+            }
+
+            // Swap grids
+            [grid, nextGrid] = [nextGrid, grid];
+        }
+
+        // Calculate 8-way laplacian for diffusion
+        function calculateLaplacian(x, y, value) {
+            let sum = 0;
+            let count = 0;
+
+            for (let dx = -1; dx <= 1; dx++) {
+                for (let dy = -1; dy <= 1; dy++) {
+                    if (dx === 0 && dy === 0) continue;
+
+                    const nx = x + dx;
+                    const ny = y + dy;
+
+                    if (nx >= 0 && nx < cols && ny >= 0 && ny < rows) {
+                        sum += grid[nx * rows + ny] - value;
+                        count++;
+                    }
+                }
+            }
+
+            return sum / count;
+        }
+
+        // Draw with dryness palette (near monochrome)
+        function drawGrid() {
+            ctx.fillStyle = 'rgba(20, 20, 20, 0.05)';
+            ctx.fillRect(0, 0, canvas.width, canvas.height);
+
+            const scaleX = canvas.width / cols;
+            const scaleY = canvas.height / rows;
+
+            for (let x = 0; x < cols; x++) {
+                for (let y = 0; y < rows; y++) {
+                    const index = x * rows + y;
+                    const value = grid[index];
+
+                    if (value > 0.01) {
+                        const intensity = Math.min(1, value * 2);
+                        const alpha = Math.pow(intensity, 2) * 0.8;
+                        const hue = 50 + (intensity * 20);
+                        const saturation = 10;
+                        const lightness = 50 + (intensity * 10);
+
+                        ctx.fillStyle = `hsl(${hue}, ${saturation}%, ${lightness}%)`;
+                        ctx.globalAlpha = alpha * params.pulse.avg;
+                        ctx.fillRect(
+                            x * scaleX,
+                            y * scaleY,
+                            scaleX + 1,
+                            scaleY + 1
+                        );
+                    }
+                }
+            }
+
+            ctx.globalAlpha = 1;
+        }
+
+        // Animation loop
+        function animate() {
+            updateGrid();
+            drawGrid();
+            requestAnimationFrame(animate);
+        }
+
+        // Initialize and start
+        initializeGrid();
+        animate();
+    </script>
+</body>
+</html>