It’s this gorgeous topographical map that was made in JavaScript, but when I contacted him he did not respond. I gotta know how he did it. The way that the animation smoothly transitions vectors is so silky smooth and I would like to use it on a project of my own, but I need to understand it first.

Here is the post:
https://www.reddit.com/r/wallpaperengine/comments/19cgjjm/i_made_topographic_wallpaper_using_javascript/

Not super sure where to start with this.