I'm using the simplex noise to create Minecraft like terrain. I can only achieve hills like this.
Does anyone know how to use simplex to make more dynamic landscapes?
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One way to achieve this is to have an additional layer of noise (2D) that controls the height of your current noise. This second layer should be scaled larger to give slower transitions between terrain types. The noise you have now defines the bumpy-ness, this second layer is kind of like a scale that will flatten out or exaggerate the bumpy-ness.