{
const ctx = DOM.context2d(width,height,1);
ctx.clearRect(0, 0, width, height);
for (let x = 0; x < width; x = x + 20) {
for (let y = 0; y < height; y = y + 25) {
let t = noise3D(x, y, 10) * Math.PI;
ctx.beginPath();
ctx.moveTo(x, y);
let [x1, y1] = [x + 2 * Math.cos(t), y + 2 * Math.sin(t)]
const param = Math.max(2,x/40 - y/30)
for (let i = 0; i < param; i++){
t = noise3D(x1, y1, 10) * Math.PI;
[x1, y1] = [x1 + 2 * Math.cos(t), y1 + 2 * Math.sin(t)]
ctx.lineTo(x1, y1);
}
ctx.stroke();
}
}
yield ctx.canvas
}
noise2D = {
const simplex = new (await require("simplex-noise@2"))(seed);
return (x,y,) => simplex.noise2D.bind(simplex)(x/noiseScale, y/noiseScale)
}
noise3D = {
const simplex = new (await require("simplex-noise@2"))(seed);
return (x,y,z) => simplex.noise3D.bind(simplex)(x/noiseScale, y/noiseScale, z/noiseScale);
}
height = 400
seed = 3
noiseScale = {
yield 340 + 220 * Math.sin(now/3000)
}
noise2D(3, 1.1)
[1,2,3,4,5,6,7].map(x=> noise2D(1,x /100))
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