Re: Other uses?
To simulate forming dirt paths in grass, set -impact to about .9999 and maybe set -lengthweight higher, since the difficulty of walking through grass is generally lower than that of walking through snow. And set -cycles to something very high or 0 (unlimited), cause otherwise you'll never see a difference.
snowpath -impact .9999 -cycles 0 -lengthweight 200
And if you're really hardcore, modify the source so that it fades from green to brown instead of white to black.
Does it work for grass too? :)
An open, cross-platform journaling program.
A scientific plotting package.