<canvas id="c" width="955" height="459"></canvas>
<script>
document.body.clientWidth; // webkit fix: http://qfox.nl/weblog/218
// start of submission //
f = Math;
e = document.body.children[$ = 0];
G = "globalCompositeOperation";
Q = .43;
P = .05;
with(e) {
  with(style) width = (w = innerWidth - 9) + "px", height = (h = innerHeight - 25) + "px";
  W = (width = w /= 2) / 2;
  H = (height = h /= 2) / 2;
  g = getContext("2d");
  t = w / h
}
with(g) {
  scale(W / t, H);
  translate(t, 1);
  setInterval(function () {
  with(E = e.cloneNode(0)) width = height = H, c = getContext("2d");
  c.fillRect(0, 0, h, h);
  g[G] = c[G] = "lighter";
  C = f.cos;
  S = f.sin;
  L = f.atan2;
  q = C($);
  r = S(q - $ * .7) + Q;
  u = C(r - $ * Q) + Q;
  a = L(q, -u * 2);
  b = L(r, u * u + q * q);
  n = C(a);
  o = S(a);
  N = C(b);
  O = S(b);
  $ += P;
  clearRect(-t, -1, 2 * t, 2);
  for (i = 14; i > 4; --i) {
  v = 0;
  for (j = 25; j;) {
  M = f.log(j + .2) * Q;
  j--;
  _ = $ - j * .07 - i * 4;
  A = C(_ + S(_ * .8)) * 2 + _ * P;
  B = S(_ * .7 - C(_ * Q)) * 3;
  x = C(A) * C(B) * M - q;
  y = S(A) * C(B) * M - r;
  z = S(B) * M - u;
  k = x * n + z * o;
  _ = z * n - x * o;
  l = y * N + _ * O;
  z = _ * N - y * O;
  lineTo(k /= z, l /= z);
  lineWidth = P / z;
  strokeStyle = "hsl(" + 60 * S($ - z) + ",60%," + ~~ (40 - j) * (Q + !j + (.1 > ($ - j * P) % 1)) + "%)";
  if (z > .1) v++ && stroke();
  else {
  v = 0
  }
  beginPath();
  moveTo(k, l)
  }
  }
  A = "drawImage";
  N = H / 2;
  c.globalAlpha = Q;
  c[A](e, 0, 0, H, H);
  X = k * N + N;
  Y = l * N + N;
  K = 1.1;
  c.translate(X, Y);
  while (i--) c.scale(K, K), c[A](E, -X, -Y, H, H);
  g[A](E, -t, -1, 2 * t, 2)
  }, 33)
}
// end of submission
</script>