I've created simple prop for fast render. I use it for presentations of models, faces, poses etc. as a simple environment. [ http://www.sharecg.com/v/38688/Poser/Simple-environment-prop-and-bacground](http://www.sharecg.com/v/38688/Poser/Simple-environment-prop-and-bacground) I always have problems with math fuctions and I'm not able to obtain effect which I need. It would be great if any material expert can advise me how can I obtain mountain shape with this prop.