Click to see the fullscreen sketch and the code editor.
I took some ideas from Gene Kogan’s Perlin Noise examples. I love the way this line moves and tumbles back over itself. One key element and favorite trick was to decrease the background opacity. I still don’t fully grasp what is happening with Perlin versus random in that random will continuously give random numbers in draw() but Perlin noise only outputs one value and how that is overcome, even in my own example.