Attached Link: http://www.renderosity.com/mod/gallery/index.php?image_id=1585045

By using a terrain map. I did this image in this way, it's footprints but the method is the same. Make an image of the tracks in black on a white background and add it as a terrain map in your terrain editor!

Injustice will be avenged.
Cofiwch Dryweryn.