This is an update to a post from March 2, 2012.
Click here to access the Langton’s Ants in 3D experiment. Once there, you can right-click on the animation and select “save image as…” to take a screenshot of the Ant trail.
The original post from March 2, 2012, with code breakdown and explanation is here.
Here are a couple more screenshots from later iterations of the algorithm: