Processing - 13 - forとlineを使った描画

void setup() {
  size(500, 500);
  background(0);
  stroke(255, 60);
  noLoop();
}

void draw() {
  for (int i = 0; i < 100; i++) {
    float random = random(30);
    strokeWeight(random);
    float offset = random * 20.0;
    line(i-20, height, i+offset, 0);
  }
}