Adding a Smooth node

This node smooths a terrain by replacing the height of a vertex by the average of the height of its neighbors. This average value and the initial value are blended.

To add a Smooth node, right click in the Graph Editor and select Create Node  > Terrain Transformation  > Smooth.

Double click on the node to open its parameters:

Editing a Smooth node

To edit a Smooth node use the sliders:

  • Neighborhood: Sets the size of the neighborhood to be taken into account in meters.
    • For a size of 1, the 8 neighbors are taken into account.
    • For a size of 2, the 8 immediate neighbors as well as the 16 second-rank neighbors are taken into account.
      The selected size is half the length of the square of the neighbors around the vertex.
  • Strength: Sets the strength of the smoothing between 0 and 1.
    • A value of 0 produces no effect.
    • A value of 1 produces maximum smoothing.

Parameters

Parameter Use
Neighborhood The size of the neighborhood to be taken into account
Strength The blend coefficient between the original value and the average of the neighbors

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