7.2 Erosion simulation

Raiseland multiplier and Abs(with negative amplitude) features can simulate erosion:

  1. We will begin by creating a uniform rocky low frecuency noise. This noise PDF will have all negative heights set to 0.
  2. After this, we will create a second noise, this noise will be a high frecuency noise with the uniform PDF.
  3. Now, we will create a third noise that will simulate erosion by setting a negative amplitude with the abs switched on. The previous noises will be multiplied by this noise as shown on the picture. Note: you can control the erosion softness by changing the exponent.
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