OpenScad Height Maps v0.5

I needed the ability to quickly generate a tile from a height map. A height map is essentially a grayscale picture. If you think of each of the 'pixel' values representing a 'z' value for a vertex in a mesh, then you can imagine applying those z values, and what you get is a mesh transformed into a 'landscape'.

This thing is just a further refinement of the technique in OpenScad.

Although I am highlighting the technique by applying it to what looks like a landscape, I've also applied it