Noise Abstraction

Developer
Akimitsu Hamamuro
Size
16,664 Kb
Views
48,576
  1. Noise Abstraction Previews
  2. Noise Abstraction HTML Codes
  3. Noise Abstraction CSS Codes
  4. Noise Abstraction JS Codes

How do I make an noise abstraction?

Http://jsdo.it/akm2/ncsw. What is a noise abstraction? How do you make a noise abstraction? This script and codes were developed by Akimitsu Hamamuro on 13 June 2022, Monday.

Noise Abstraction Previews
IQ Test

Noise Abstraction - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Noise Abstraction</title> <link rel="stylesheet" href="css/style.css">
</head>
<body> <canvas id='c'></canvas> <script src='https://rawgit.com/akm2/simplex-noise.js/master/simplex-noise.js'></script>
<script src='js/kzymdn.js'></script> <script src="js/index.js"></script>
</body>
</html>

Noise Abstraction - Script Codes CSS Codes

body { font-family: sans-serif; padding: 0; margin: 0; background-color: #eee9e9; overflow: hidden; -webkit-user-select: none; -moz-user-select: none; -o-user-select: none; -ms-user-select: none; user-select: none;
}
canvas { position: absolute; top: 0; left: 0;
}

Noise Abstraction - Script Codes JS Codes

/** * requestAnimationFrame */
window.requestAnimationFrame = (function(){ return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function (callback) { window.setTimeout(callback, 1000 / 60); };
})();
// Configs
var Configs = { backgroundColor: '#eee9e9', particleNum: 1000, step: 5, base: 1000, zInc: 0.001
};
// Vars
var canvas, context, screenWidth, screenHeight, centerX, centerY, particles = [], hueBase = 0, simplexNoise, zoff = 0, gui;
// Initialize
function init() { canvas = document.getElementById('c'); window.addEventListener('resize', onWindowResize, false); onWindowResize(null); for (var i = 0, len = Configs.particleNum; i < len; i++) { initParticle((particles[i] = new Particle())); } simplexNoise = new SimplexNoise(); canvas.addEventListener('click', onCanvasClick, false); gui = new dat.GUI(); gui.add(Configs, 'step', 1, 10); gui.add(Configs, 'base', 500, 3000); gui.add(Configs, 'zInc', 0.0001, 0.01); gui.close(); update();
}
// Event listeners
function onWindowResize(e) { screenWidth = canvas.width = window.innerWidth; screenHeight = canvas.height = window.innerHeight; centerX = screenWidth / 2; centerY = screenHeight / 2; context = canvas.getContext('2d'); context.lineWidth = 0.3; context.lineCap = context.lineJoin = 'round';
}
function onCanvasClick(e) { context.save(); context.globalAlpha = 0.8; context.fillStyle = Configs.backgroundColor; context.fillRect(0, 0, screenWidth, screenHeight); context.restore(); simplexNoise = new SimplexNoise();
}
// Functions
function getNoise(x, y, z) { var octaves = 4, fallout = 0.5, amp = 1, f = 1, sum = 0, i; for (i = 0; i < octaves; ++i) { amp *= fallout; sum += amp * (simplexNoise.noise3D(x * f, y * f, z * f) + 1) * 0.5; f *= 2; } return sum;
}
function initParticle(p) { p.x = p.pastX = screenWidth * Math.random(); p.y = p.pastY = screenHeight * Math.random(); p.color.h = hueBase + Math.atan2(centerY - p.y, centerX - p.x) * 180 / Math.PI; p.color.s = 1; p.color.l = 0.5; p.color.a = 0;
}
// Update
function update() { var step = Configs.step, base = Configs.base, i, p, angle; for (i = 0, len = particles.length; i < len; i++) { p = particles[i]; p.pastX = p.x; p.pastY = p.y; angle = Math.PI * 6 * getNoise(p.x / base * 1.75, p.y / base * 1.75, zoff); p.x += Math.cos(angle) * step; p.y += Math.sin(angle) * step; if (p.color.a < 1) p.color.a += 0.003; context.beginPath(); context.strokeStyle = p.color.toString(); context.moveTo(p.pastX, p.pastY); context.lineTo(p.x, p.y); context.stroke(); if (p.x < 0 || p.x > screenWidth || p.y < 0 || p.y > screenHeight) { initParticle(p); } } hueBase += 0.1; zoff += Configs.zInc; requestAnimationFrame(update);
}
/** * HSLA */
function HSLA(h, s, l, a) { this.h = h || 0; this.s = s || 0; this.l = l || 0; this.a = a || 0;
}
HSLA.prototype.toString = function() { return 'hsla(' + this.h + ',' + (this.s * 100) + '%,' + (this.l * 100) + '%,' + this.a + ')';
}
/** * Particle */
function Particle(x, y, color) { this.x = x || 0; this.y = y || 0; this.color = color || new HSLA(); this.pastX = this.x; this.pastY = this.y;
}
// Run
init();
Noise Abstraction - Script Codes
Noise Abstraction - Script Codes
Home Page Home
Developer Akimitsu Hamamuro
Username akm2
Uploaded June 13, 2022
Rating 4.5
Size 16,664 Kb
Views 48,576
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