text:   
  let w = 600;
  let n = 10;
  let t = 0;
  
  function setup() {
    createCanvas(w, w);
  }
  
  function draw() {
    background(220);
    let m = w/n;
  
    stroke(0);
  
     for(let fila= 0; fila< n; fila++){
       strokeWeight(1);
      // line(0, (fila*m), w, (fila*m));
       //line((fila*m), 0, (fila*m), w);
  
       for(col = 0; col<n; col++){
  
        let i = (fila*n) + col; // indice
        let x = col*m;
        let y = fila*m;
        let xc = x + (m/2);
        let yc = y + (m/2);
         let c = color(255,255,0);
  
        let d = map(i, 0, n*n, 2, m); // diametro
        // let g = map(fila, 0, n-1, 0,255); // grigio
        let g = map(i, 0, n*n, 0,255); // grigio
        let s = map(fila, 0, n-1, 1,8);
        //let z = noise(t + x/100,y/100);
        
        //fill(noise(t + x/100,y/100)*220);
        //fill(noise(t + x/100,y/w)*220);
        stroke(noise(t + x/100,y/100)*255,200,120);
        strokeWeight(3);
        //rect(x,y,m,m);
        //circle(xc, yc, m);
         
         
         //fill(g);
        // strokeWeight(s);
        let z = noise(t + x/100,y/100);
        fill(noise(t + x/100,y/w)*220);
         circle(xc, yc, z*m+5);
  
        // textAlign(CENTER, CENTER);
        // text(fila, xc, yc);
  
           
       }
     }
  
     t+= 0.01;
  
  }
  