PImage dog;
final int NUM_DOGS = 5;
int iter = 0;
final int MAX_ITER = 64;

void setup(){
  size(600, 600);
  dog = loadImage("dog-mature-landing-hero.jpg");
}

void draw() {
  background(255, 255, 255);

  for (float i = 0; i < NUM_DOGS; i++) {
     final float d = width/3.5; // dist from centre
     float angle = (PI*2f)*(i/NUM_DOGS) + (TWO_PI/NUM_DOGS)*((iter+0f)/MAX_ITER);
     pushMatrix();
     translate(width/2 + cos(angle)*d, height/2 + sin(angle)*d);
     rotate(-angle);
     scale(0.35);
     imageMode(CENTER);
     image(dog, 0, 0);
     popMatrix();
  }
  saveFrame();
  iter ++;
  if (iter == MAX_ITER) {
    exit();
  }
}