I have generated a heightmap using Ridgednoise. The end result looks bit weird so i wanted to give more natural look for it. After some googling around i decided on hydraulic erosion. I implemented 2 different approaches: Ramantaru Games and Hydraulic erosion (it looks to be based on this thesis). But it does not create the expected results.
This is before:
And this is after erosion:
It is the same mountain, first the ridgenoise lines are clearly visible ant it is not natural at all, but the erosion, it creates these weird squiggli lines. Both approaches create same result. How can i make the after erosion look to be bit more smooth.