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You create the mask by drawing it in the Mask interface which is launched by the Edit Mask button in the properties panel.

TODO: Image

For drawing, you have two options: Draw and Erase. The brush size slider lets you change your brush size for either operation.

If the Input port is connected to another node, a 2D representation of that terrains is shown in the background as a guide. This is optional, as the Input port only provides a drawing guide and does not affect the actual mask.


Node Properties
SettingDescription
BlurThe amount of blurring to apply.
IterationsThe number of times the blur is applied. Higher values give more varied softness at the expense of processing time.