My Sketch

function setup() {

  createCanvas(windowWidth, windowHeight);

  background(0);

}

​

  function draw(){

  const blackVal = map(mouseX, 0, width, 0, 255);

  const whiteVal = map(mouseY, 0, height, 0, 255);

  //noStroke()

  translate(mouseX, mouseY);

  const Rotation = map(mouseY, 0, height, 0, PI);

  rotate(rotationX, rotationY);

  stroke(whiteVal, blackVal, 255);

  line(- 100, 0, 100, 0);

}