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const size = 20;
function setup() {
createCanvas(400, 400);
}
function draw() {
background(220);
for (let x=size/2; x<width; x+=size) {
for (let y=size/2; y<height; y+=size) {
let r = noise(x,y, frameCount / 100) * TWO_PI;
push();
translate(x, y);
rotate(r);
line(-10, 0, 10, 0);
pop();
}
}
}