createCanvas(600, 400);

}

​

function draw() {

  background(220);

  // left quad vertices

  let xl1 = 0, yl1 = 0;    // Top-left point

  let xl2 = 0, yl2 = 400;  // Bottom-left point

  let xl3 = 150, yl3 = 300; // Bottom-right point

  let xl4 = 150, yl4 = 100; // Top-right point

​

  let sections = 10;

  for (let i = 0; i < sections; i++) {

    let t1 = i / sections;        // Interpolation factor for left points of each section

    let t2 = (i + 1) / sections;  // Interpolation factor for right points of each section

    let xTopLeft = lerp(xl1, xl4, t1);

    let yTopLeft = lerp(yl1, yl4, t1);

    let xBottomLeft = lerp(xl2, xl3, t1);

    let yBottomLeft = lerp(yl2, yl3, t1);

    let xTopRight = lerp(xl1, xl4, t2);

    let yTopRight = lerp(yl1, yl4, t2);

    let xBottomRight = lerp(xl2, xl3, t2);

    let yBottomRight = lerp(yl2, yl3, t2);

    //noStroke();

    quad(xTopLeft, yTopLeft, xBottomLeft, yBottomLeft, xBottomRight, yBottomRight, xTopRight, yTopRight);

  }

}