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function setup() {
createCanvas(600, 400);
background(220);
for (var x = 0; x < width; x = x + 20) {
var d = randomGaussian(20, 5);
fill(255, 100);
ellipse(x, 100, d);
}
for (var x = 0; x < width; x = x + 20) {
var d = random(10, 30);
var col = random(255);
fill(col, 200);
ellipse(x, 200, d);
}
var offset = 0;
for (var x = 0; x < width; x = x + 20) {
var d = noise(offset)*40;
var col = noise(offset) * 255;
fill(col, 200);
ellipse(x, 300, d);
offset += 0.1;
}
}