live - 60fps 1920 x 1080
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Background 3: Symbolic Gyre</title>
<style>
:root {
--bg-color: #101010;
--symbol-color: #444;
--glow-color: #ffffff;
}
body {
margin: 0;
height: 100vh;
background-color: var(--bg-color);
display: flex;
justify-content: center;
align-items: center;
overflow: hidden;
}
.symbol-grid {
width: 105vw;
height: 105vh;
display: grid;
grid-template-columns: repeat(var(--cols), 1fr);
}
.symbol {
font-family: monospace;
font-size: 1.5em;
text-align: center;
color: var(--symbol-color);
transform-origin: center;
will-change: transform, color;
animation: ripple 10s ease-out infinite;
}
@keyframes ripple {
0%, 30%, 100% {
transform: scale(1) rotate(0deg);
color: var(--symbol-color);
text-shadow: none;
}
15% {
transform: scale(2) rotate(180deg);
color: var(--glow-color);
text-shadow: 0 0 5px var(--glow-color);
}
}
</style>
</head>
<body>
<div class="symbol-grid" id="grid"></div>
<script>
const grid = document.getElementById('grid');
const symbol = '+';
const size = Math.floor(Math.max(window.innerWidth, window.innerHeight) / 30);
const cols = Math.floor(window.innerWidth / size);
const rows = Math.floor(window.innerHeight / size);
grid.style.setProperty('--cols', cols);
const centerX = cols / 2;
const centerY = rows / 2;
for(let i = 0; i < cols * rows; i++) {
const symbolSpan = document.createElement('span');
symbolSpan.className = 'symbol';
symbolSpan.textContent = symbol;
const x = i % cols;
const y = Math.floor(i / cols);
// Calculate distance from center
const dist = Math.sqrt(Math.pow(x - centerX, 2) + Math.pow(y - centerY, 2));
// Use distance to calculate animation delay, creating the ripple
const delay = dist * 0.15; // The multiplier controls the speed of the ripple
symbolSpan.style.animationDelay = `${delay}s`;
grid.appendChild(symbolSpan);
}
</script>
</body>
</html>About this animation
Swirling symbols in a mystical pattern.
Under the hood
Trigonometric Rotation
This effect relies heavily on
Math.sin() and Math.cos() to calculate orbital paths around a central nexus. Symbols are drawn dynamically at each calculated point, rotating constantly to form a mesmerizing spiral pattern. Related
