Controls how many meters of the eroding layer or material layer is eroded every iteration.

Controls the softness of the eroding layer or material layer. Higher values would make the terrain easier to erode, causing deeper incisions, more sediment, and more debris being deposited as a result.

Controls whether to use a mask for erodability or not.

The name of the erodability mask.

Controls the rate at which erosion happens. This is a multiplier on Erodability.

Proportion of debris from thermal erosion that is deleted. This simulates wind carrying away a certain amount of debris rather than it all accumulating. The default is 0 (no deletion). Negative values correspond to the debris being less dense than the rock, so one unit of eroded rock produces more than one unit of debris.

Sets the angle at which the riverbank rests relative to the riverbed. Lowre values would make wider and flatter river channels.

Controls whether to use a mask for bank angle or not.

The name of the bank angle mask.

Random seed to make erosion vary for the same set of variables on the same input.

Proportion of debris from thermal erosion that is deleted. This simulates wind carrying away a certain amount of debris rather than it all accumulating. The default is 0 (no deletion). Negative values correspond to the debris being less dense than the rock, so one unit of eroded rock produces more than one unit of debris.

Stop erosion when the debris layer reaches this depth.

The iteration where erodability would get to its maximum value.

Controls how much of the set erodability would the material have on its initial movement. It would increase over the set spread iterations until the max iteration, where it would stay at maximum set value.

Control how much the slope of the terrain would affect the erosion amount. Higher values would increase the slope effecting the erosion, and lower values would decrease it. Lowing this value would increase erodability as a result.

A multiplier on Erosion Rate that would cause a change on the riverbed only. Increasing this value would cause a more aggressive erosion on the bed, and as a result, it would increase the depth of the incisions.

Controls the rate at which the excess sediment turns into debris. A value of zero means no sediment is turned into debris, while a value of one will convert all created sediment into debris, and the bedrock would in turn be protected more by the created debris.

Controls whether to use a mask for deposition rate or not.

The name of the deposition rate mask.

The amount of sediment that can be carried per unit of moving water. The higher the capacity, the longer the material can erode before it starts depositing its excess sediment.

A multiplier on Erosion Rate that would cause a change on the riverbank only. Increasing this value would cause a more aggressive erosion on the bank, and as a result, it would increase the width of the incisions.

The maximum of bank to bed water column height ratio that will be considered as river bank bank. Ratios higher than this number will not be considered as bank during erosion.

Controls how biased the movement of material is. Setting it to positive values would bias the movement in the direction of the principal axes, and when set to negative values, it would bias the movement at angles of 45 degree relative to the principal axes. The default value of zero would mean no bias in any direction.

Controls whether to use a mask for grid bias or not.

The name of the grid bias mask.

Controls the chunkiness of the material flow. A lower value would make the flow more continuous and a higher value would make the flow more chunky.

How many iterations of slumping to simulate. Fast-moving slump layers like water or gravel should use a higher value, while lava or rock should use a lower value.

The name of the layer that flows, and causes erosion by its slumping (default water).

The name of the layer that will be dragged along with the movement of the slumping layer (default debris).

The name of the sediment layer where the eroding layer will be turned into before being deposited into the debris layer (default sediment).

The name of the layer that will be broken into the entrained layer by the action of erosion (default height).

When eroding a system with more than two layered heightfields, the effective height at a point may be the sum of multiple heightfields. This is a space-separated list of of all the layers below the Eroding Layer (default ).

The reference layer for determining how far the current height has eroded. If not present on the input, is set to the original height of the terrain.

The name of a mask layer to use as the erodability value for each point on the terrain. A value of 0 allows no erosion (use this to represent something like granite). A value of 1 means easy erosion (use this to represent loose dirt). This is read from the second input.

Adjusts how erodible rock is by how far it is away from the reference bedrock layer.

The depth for the strata. The Strata Erodability ramp uses this depth to control how deep it represents. A positive values means the strata represents hardness below the bedrock layer. Negative values mean the strata represents hardness above the bedrock layer.

Depths outside of the strata range will be clamped to the ends of the ramp. If clamping is off, they will repeat forming a periodic pattern.

How erodible rocks are at different strata depths. The left most is at the bedrock reference layer, the right most at the extreme strata depth. Values of 1 are fully erodible, such as loose dirt, and values of 0 prevent erosion, like granite.