Yowsa! I saw your post and realized that I hadn't done anything with your request for animated water. I haven't had time to do a tutorial on it yet so here is the next best thing - the actual Carrara file I made the demo movie from. The Carrara file that is linked is not actually a movie file - it's a .zip file with the suffix changed to .mov so I can upload it her. Download the file, change the suffix to .zip and then decompress the Carrara file. Now, back to your question. Here is one way to do the road described in your post. Convert the procedural terrain map into a texture, export the texture, open in Photoshop, isolate a gray at the "right" elevation using the adjustment layer of Contrast or Levels, use the selection to make a mask to work within, draw a path for your road within the masked area, convert the path to a selection, fill the selection with a gray, save and import back into Carrara. Whew, long answer. There is a way to create very narrow bands using the terrain shader itself by making selections using altitudes. That works ok for fine natural detail like shoreline, however, it's a little too irregular for a road in my opinion. If this makes absolutely no sense, post back and I'll put something together on Sunday. Good luck! Mark