I would like to generate a. Png for example 4000x5000 greater than the main window or other size indicated in the function void keyPressed () and can be applied to any code.

by example in this code:

Its posible?



Thanks so much!


int n = 1000;
int maxage = 20;
int rdodge = 30;
int opacity = 40;
float speed = .2;
float zoom = .01;
boolean crayons, soft, dodge = true;

float[][] a = new float[n][2];
int[] age = new int[n];
float w, h, s;
int t, c;


void setup() {


 size(1500, 1500);
 background(crayons ? 0 : #ffffff);

  img = createImage(2000,2000,RGB);


  
  w = width/2;
  h = height/2;
  colorMode(HSB, TWO_PI, 2, 1);
  smooth();
  reset();

}


void draw() {
  // create new particles
//co.background(255);
//co.fill(255);

  //translate(-offset, -offset);
  //image(co, 0, 0);
  int np = n / maxage;
 
  for(int i=0; i<np & c<n; i++, c++) newp(c);
  // draw particle traces
  for(int i=0; i<c; i++) {
    age[i]++;
    float[] p = a[i];
    if (age[i] > maxage) newp(i);
    else {
      float[] f = f(p[0], p[1]);    
      // opacity based on speed (soft mode) or age (hard mode)
      int m = maxage/2;
      float o = soft ? mag(f[0], f[1]) * 2 * opacity : (m - abs(m - age[i])) * opacity/m;
      // hue based on direction
      float h =  atan2(f[0], f[1]) + PI;  
      stroke(h, crayons ? 1 : 0, crayons ? 1 : 0, o);
      // draw line while updating position
      line(p[0], p[1], p[0] += s*f[0],  p[1] += s*f[1]);
    }
  }
 

}


// noise based flow field
float[] f(float x, float y) {;
  return new float[] {
    noise(t, x * zoom, y * zoom)-.5,
    noise(t+1, x * zoom, y * zoom) - .5
  };
}


void newp(int p) {
  if(dodge) {
    // particle inside a circle around the mouse position
    float r = random(rdodge), ang = random(TWO_PI);
    a[p] = new float[] { mouseX + r * cos(ang), mouseY + r *sin(ang) }; 
  } else { 
    // particle anywhere on screen
    a[p] = new float[] { random(width), random(height) };
  }
  age[p] = 0;
}


void reset() {
  background(crayons ? 0 : #ffffff);
  s = speed / zoom;
  c = 0;
}



void keyPressed() {
switch(key) {
    case 't' : saveFrame("doodle-###.png"); break;
    case 's' : soft = !soft; break;
    case 'd' : dodge = !dodge; break;
    case 'f' : t++; break;
    case 'c' : crayons = !crayons; break;
    case '+' : zoom /= 1.1; break;
    case '-' : zoom *= 1.1; break;
    case 'v' :    PImage partialSave = get(0,0,1500,1500); partialSave.save("partialSave.jpg");
    case 'z' :  img.save("file.jpg");
    case ' ' : break;
    default: return;
  }
 
 
}