Messing around with algorithms from this tutorial: http://flafla2.github.io/2014/08/09/perlinnoise.html

Added color option too

Example output:

(standard) (rgb overlay) (shaded gradient)

First try to add a shaded gradient yielded this:

Finally added the actual noise library. noise_tests.ipynb is a notebook where I play around with 3d representations of perlin noise.

Using brownian motion to get the z cross-section: