This is one of the quick tutorials that i did for visualisation with soft selection. This is going to be a large portion of whats going to make up the enviroment accompanying my rollercoaster enviroment maybe lofting a tube round the track and using soft selection to manipulate the tube into a more natural organic look. I used NURMS subdivision to give a smoother out look. thou i don't think that'll be needed when i do the inside of the cave as rocks are more jagged and sharp shapes in a cave enviroment.