​

function setup() {

  createCanvas(400, 400, WEBGL);

  pg = createGraphics(200, 200);

  pg.background(255);

    pg.noStroke();

    for(var x=0; x<pg.width; x+=random(30)) {

    pg.fill(random(255), 0, 0);

    pg.rect(x, 50, 100, 100);

    }

}

​

function draw() {

    background(200);

  beginShape();

  texture(pg);

  vertex(100, -200, 0, 0);

  vertex(200, 0, 200, 0);

  vertex(-100, 200, 200, 200);

  vertex(-200, 0, 0, 200);

  endShape(CLOSE);

}