let xspace = 4;

let yspace = 4;

​

function setup() {

  feed = createCapture(VIDEO);

  createCanvas(640, 480);

  noFill();

  feed.hide();

  strokeWeight(1);

  stroke(255);

}

​

function draw() {

  background(0);

  //image(feed,0,0);

  feed.loadPixels();

  for(let e=0; e<height/yspace; e++){

    let y = (height*0.125)+ e*yspace*0.75;

    beginShape();

    for(let i=0; i<width/xspace; i++){

      let x = (width*0.125)+i*xspace*0.75;

      let yoff = sin(frameCount*0.1+x*0.01)*20;// frameCount%yspace;

      let index = ((y*width)+x)*4;

      let brightness = (feed.pixels[index]+feed.pixels[index+1]+feed.pixels[index+2])/3;

      let offset = map(brightness,0,255,0,10);

      let tempy = y+offset+yoff;

​

      curveVertex(x,tempy);

    }

    endShape();

  }

}