let slider2;

let slider3;

​

function setup() {

  createCanvas(300, 300);

​

  slider = createSlider(0, 200, 100);

  slider.position(10, 320);

  slider.style('width', '150px');

  slider2 = createSlider(0, 255, 100);

  slider2.position(10, 340);

  slider2.style('width', '150px');

  slider3 = createSlider(0, 255, 100);

  slider3.position(10, 360);

  slider3.style('width', '150px');

}

​

function draw() {

  background(0);

  let vrednost1 = slider.value();

  let r = slider2.value();

  let g = slider3.value();

  let b = 100;

  fill(r, g, b);

  noStroke();

  circle(width/2, height/2, vrednost1);

}