ar Noise</a></li>
    <li class="level4 nav-leaf"><a href="../classic-perlin-noise/">Classic Perlin Noise</a></li>
    <li class="level4 active nav-leaf"><a href="#">Gradient Noise</a></li>
    <li class="level4 nav-leaf"><a href="../simplex-noise/">Simplex Noise</a></li>
    <li class="level4 nav-leaf"><a href="../white-noise/">White Noise</a></li>
    <li class="level3 nav-node"><a href="../../patterns/">Patterns</a></li>
    <li class="level4 nav-leaf"><a href="../../patterns/grid/">Grid</a></li>
    <li