Classic Erosion v1.1 - Fixed behaviour that caused strange peaks and overshoots om the area of sharp terrain edges;
- New thermal erosion.
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(There is only thermal erosion is used)
New thermal erosion is presented as two new thermal erosion models. There is the parameter "Thermal erosion model" where you can select desired model.
Model A: this is old thermal erosion, left for compatibility with existing projects.
Model B: new erosion model. This thermal erosion model applies thermal stress uniformly to the rock. Resulting rock has similar look to uneroded, keeping it's shape as long as possible. Of course, if high thermal erosion intensity or long simulation time is used, resulting rock can lost it's with original. This model can be helpful for imitating erosion that often occurs in a dry climate.
Model C: new erosion model. This model emulates non-uniform thermal stress taking into account rock shape. For example, if you erode perfectly rounded truncated cone, you would get perectly round cone with nice talus "skirt" beneath it. But if original cone is distorted, it's irregularity will drive and control the erosion process, resulting in a complex shape. This gives rock it's distinctive "mountain" look, so often just thermal erosion is enough to get good mountain-like landscape.
Example (top-down view):
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There is also new "Smoothness" parameter available for "C" model. It controls the thermal stress of convex parts of rock: the rock pieces that are raised. The higher is smoothness, the higher is probability of destruction and falling down of these rock pieces. Combining with mild fluvial erosion this can be helpful for getting mountain shapes that often exist in cold climate.
New thermal models also allow resolution independance similar to fluvial erosion.
Thermal erosion strength in new models can be set higher than 1 up to quite high values (10 or may be more), but usually this isn't needed. Moreover, in many cases (for example, if combined with fluvial erosion) it is better to set Thermal erosion strength to quite low values, sometimes even less than 0.1.
Daniil