Rough Mountains

[viche12345]

My question is simple. Does anyone know how to create rough mountains and the realistic material displayed in this pic? I am a beginner to Terragen 2 and I need ideas and inspiration! Thanks...hehe 

[FrankThomas]

Possibly an alpine shader but they are horribly slow

[viche12345]

Do you mean alpine FRACTAL or blend my current terrains with the alpine shader (I have no idea what this is and I will have to find out)?

[FrankThomas]

when you add a terrain, you can either use a heightfield or what they call a procedural which is a planet wide terrain.  There's two types of procedural - Power fractal or alpine.  Give 'em a go and see which looks best

[viche12345]

Is the bumpiness of the snow caused by the bumpiness of the terrain? Or is it caused by the shader?

[3DGuy]

Stack several fractals. For example 1 for the large features like the mountain itself. 1 for smaller features like ridges and 1 for very small stuff like bumps and pits.

Additionally you could add a fake stone shader, depending on the detail you need.

[king_tiger_666]

only problem with a render like this is the time it takes rendering the clouds....

also a twist shear shader could be used to some extent