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birth: Synthetic growth in glass

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motd_admin 2026-03-31 01:47:20 +00:00
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commit 562733f36c
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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>Neurameba Tessellation</title>
<style>
body {
margin: 0;
overflow: hidden;
background-color: #000;
color: #fff;
font-family: monospace;
}
canvas {
display: block;
}
#attribution {
position: absolute;
bottom: 10px;
left: 10px;
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();
// Parameters
const params = {
motion: 0.496,
density: 0.523,
complexity: 0.558,
connectedness: 0.582,
lifespan: 0.512,
survivingNodes: 91,
branchCount: 88,
loops: 1609,
maxDepth: 30,
thicknessRatio: 1.50,
fractalDimension: 0.558,
finalEnergy: 525.2,
pulse: { avg: 0.45, min: 0.30, max: 2.00 },
tone: { anger: 0.00, sadness: 0.00, curiosity: 0.70, dryness: 0.90, playfulness: 0.10, tension: 0.00 }
};
// State
const state = {
cells: [],
time: 0,
lastTime: 0,
cellSize: 20 * (1 - params.density) + 5,
gridWidth: Math.ceil(window.innerWidth / (20 * (1 - params.density) + 5)),
gridHeight: Math.ceil(window.innerHeight / (20 * (1 - params.density) + 5))
};
// Initialize cells
function initCells() {
state.cells = [];
for (let y = 0; y < state.gridHeight; y++) {
for (let x = 0; x < state.gridWidth; x++) {
state.cells.push({
x: x * state.cellSize,
y: y * state.cellSize,
size: state.cellSize * 0.8,
baseSize: state.cellSize * 0.8,
angle: 0,
targetAngle: 0,
growth: 0,
targetGrowth: Math.random() * 0.3 + 0.2,
color: `hsl(180, 30%, ${50 + Math.random() * 20}%)`,
connections: [],
energy: params.finalEnergy * Math.random(),
pulse: params.pulse.avg + (Math.random() * 2 - 1) * 0.2
});
}
}
}
// Create connections
function createConnections() {
state.cells.forEach(cell => {
// Connect to nearby cells
const nearbyCells = state.cells.filter(c =>
c !== cell &&
Math.abs(c.x - cell.x) < state.cellSize * 2 &&
Math.abs(c.y - cell.y) < state.cellSize * 2
);
// Create connections based on density and connectedness
const connectionCount = Math.floor(params.connectedness * 3 * params.density);
for (let i = 0; i < connectionCount && nearbyCells.length > 0; i++) {
const target = nearbyCells[Math.floor(Math.random() * nearbyCells.length)];
if (!cell.connections.includes(target)) {
cell.connections.push(target);
// Add reverse connection with lower probability
if (Math.random() < 0.3) {
target.connections.push(cell);
}
}
}
});
}
// Update cells
function updateCells(deltaTime) {
state.time += deltaTime * 0.001 * params.motion * params.pulse.avg;
state.cells.forEach(cell => {
// Update growth
cell.growth = cell.growth * 0.9 + cell.targetGrowth * 0.1;
cell.size = cell.baseSize * (0.7 + cell.growth * 0.3);
// Update angle
cell.angle = cell.angle * 0.9 + cell.targetAngle * 0.1;
cell.targetAngle += (Math.random() - 0.5) * params.motion * params.pulse.avg;
// Pulse effect
cell.size *= 1 + (Math.sin(state.time * cell.pulse) * 0.05 * params.pulse.avg);
// Update energy
cell.energy += params.finalEnergy * 0.001 * params.motion;
// Connect to other cells based on energy
if (cell.energy > params.finalEnergy * 0.5) {
const nearbyCells = state.cells.filter(c =>
c !== cell &&
Math.abs(c.x - cell.x) < state.cellSize * 4 &&
Math.abs(c.y - cell.y) < state.cellSize * 4
);
if (nearbyCells.length > 0 && Math.random() < 0.01) {
const target = nearbyCells[Math.floor(Math.random() * nearbyCells.length)];
if (!cell.connections.includes(target)) {
cell.connections.push(target);
if (Math.random() < 0.3) {
target.connections.push(cell);
}
}
}
}
});
}
// Draw cells
function drawCells() {
ctx.clearRect(0, 0, canvas.width, canvas.height);
// Draw connections first (darker)
ctx.strokeStyle = `rgba(255, 255, 255, ${0.1 * params.tone.dryness})`;
ctx.lineWidth = state.cellSize * 0.2 * params.thicknessRatio * (0.5 + params.connectedness * 0.5);
state.cells.forEach(cell => {
cell.connections.forEach(target => {
if (cell === target) return;
const alpha = 0.2 + params.connectedness * 0.8;
ctx.globalAlpha = alpha;
ctx.beginPath();
ctx.moveTo(cell.x + cell.size/2, cell.y + cell.size/2);
ctx.lineTo(target.x + target.size/2, target.y + target.size/2);
ctx.stroke();
});
});
// Draw cells
ctx.globalAlpha = 1;
state.cells.forEach(cell => {
// Draw cell
ctx.fillStyle = cell.color;
ctx.beginPath();
ctx.arc(
cell.x + cell.size/2,
cell.y + cell.size/2,
cell.size/2,
0,
Math.PI * 2
);
ctx.fill();
// Draw inner circle
ctx.fillStyle = `hsl(180, 40%, ${60 + Math.sin(state.time * 0.5) * 10}%)`;
ctx.beginPath();
ctx.arc(
cell.x + cell.size/2,
cell.y + cell.size/2,
cell.size/4,
0,
Math.PI * 2
);
ctx.fill();
// Draw pulse ring
ctx.strokeStyle = `hsla(180, 100%, 80%, ${0.5 * params.tone.curiosity})`;
ctx.lineWidth = 2;
ctx.beginPath();
ctx.arc(
cell.x + cell.size/2,
cell.y + cell.size/2,
cell.size/2 + Math.sin(state.time * cell.pulse) * 3,
0,
Math.PI * 2
);
ctx.stroke();
});
}
// Animation loop
function animate(timestamp) {
if (!state.lastTime) state.lastTime = timestamp;
const deltaTime = timestamp - state.lastTime;
state.lastTime = timestamp;
updateCells(deltaTime);
drawCells();
requestAnimationFrame(animate);
}
// Start animation
initCells();
createConnections();
requestAnimationFrame(animate);
</script>
</body>
</html>