Ran across this thread over on BlenderArtists.org ...
It references this Code Project:
The author of the project has chimed in over on BA and is willing to open source it for Blender. I thought some of what he was doing looked interesting and I know that there is a desire for more noise types in TG, so I thought I would share.
Very interesting. I had seen his original article previously (not sure where it was linked from, maybe even here), but I see he's evolving it and working on some interesting additions, as well as adjusting the license to possibly be compatible with Blender (MIT). Nice! I could see someone implementing it with the forthcoming SDK.
Nice post Neighbor! (we live like 50 miles apart!!) That's some very cool info, thanks. Be nice to see it happen with that "forthcoming SDK" :)
Note that the fade function, is the product of the complement of a soft step function on each axix.