The Hydraulic erosion node creates realistic erosion and deposition effects caused by rainfall and river flows.
This simulation follows three basic rules:
The following image shows the hydraulic simulation and its corresponding flow map.
To add a Hydraulic erosion node, right-click in the Graph and select Create Node > Simulation > Hydraulic erosion.
The connectors from top to bottom correspond to:
Double click on the node to open its parameters:
The tile being calculated is highlighted and surrounded by a red frame. This is only visible if the erosion parameters window is open.
|Number of iterations:||Sets the number of iterations|
|Quantity of rain:||Quantity of falling water, in centimeters per second|
|Viscosity:||Change the fluid behavior and thus the erosion pattern|
|Erosive power:||The higher the value, the more terrain will be eroded by the flowing water|
|Rain impact:||Quantity of rock shattered by rain and transformed into sediment|
|Time increment:||Time that elapses between iterations, in seconds|
|Evaporation mask:||Quantity of evaporated water, in percentage per iteration|
|Deposition mask:||Acts as a localized sediment sink, allowing the user to erode without sediment transport|
|Simulation mode:||Change the algorithm to use either 4 or 8 neighbors for the water flow|
|Show water:||Uncheck the option to view erosion without displaying any water on your terrain|
|Show sediment:||Uncheck the option to view the node without displaying any sediment|
|Automatic scale:||Automatically scales the terrain so that the result has the same quality as a terrain with a quad size of 1 meter|
Some combinations of the Advanced parameters may lead to a divergent simulation.
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