Results are nice but you should share the code...
fullscreen void setup() {
size(350, 350);
background(255);
smooth();
}
int t;
void draw() {
for (int i = 0;i <= 150;i++) {
stroke(255, 100, 0);
ellipse(width/2+i*cos(t), height/2+i*sin(t), t, t);
t++;
if (t > 50) {
t = 0;
}
}
}