The article and this video don't describe the same algorithm. As stated at the end of article, "this is not true perlin noise! Hugo's algorithm is not based on

The article and this video don't describe the same algorithm. As stated at the end of article, "this is not true perlin noise! Hugo's algorithm is not based on gradients like Perlin Noise is. Instead it is what's known as value noise, which is essentially blurred white noise."