Hello, I've just rendered this scene with two Power Fractal terrains (one for the medium features and one for the bigger), reading the tutorial on the wiki pages. All the settings are default, except for the rendering detail at 0.75.
As you can see, the mountains have a "noisy" look
![Undecided :-\](https://www.planetside.co.uk/forums/Smileys/fugue/undecided.png)
What can I do to make a better rendered image?