Donwload code

int i;
void setup(){
  size(700,700,P3D);
  background(255);
  stroke(0,20);
  noFill();
}

void draw(){
   rect(0,0,width,height);
   fill(255,0.05);
   noStroke();
    pushMatrix();
    translate(width/2,height/2,0);
    rotateX(radians(i));
    rotateZ(radians(i/4));
      //line(0,-100+i/4,0,100+i/4);
      stroke(0,20);
      ellipse(0,-110,20+i/10,20+i/40);
      ellipse(0,110,20+i/10,20+i/40);
      popMatrix();
      i++;
}