Adding a Mask from slopes node
This node creates a mask from the slopes of a terrain. The mask created has the same size and resolution as the input terrain.
To add a Mask from slopes node, right-click in the Graph Editor and select Create Node > Mask Generation > Mask from slopes.
Double click on the node to open its parameters:
Editing a Mask from slopes node
Two modes exist to edit the Mask from slopes node.
- Gradient mode: In this mode, a gradient of
values exists, with 0 corresponding to the defined Minimum
slope angle and 1 corresponding to the defined
Maximum slope angle.
At each vertex, the mask has a value of 0 (black color) if the slope of the terrain is less than or equal to the minimum slope angle; it has a value of 1 (white color) if the slope of the terrain is higher or equal to the maximum slope; it has a value between 0 and 1 if the slope of the terrain lies between these two slopes.
- Select mode: At each vertex, the mask has a value of 1 (white color) if the slope of the terrain is between the Maximum slope angle and the Minimum slope angle; otherwise, the mask is set to 0 (black color). The range is set manually.
Parameters
| Parameter | Use |
|---|---|
| Gradient mode | The mask takes a gradient with values between 0 for the minimum slope angle up to 1 for the maximum slope angle |
| Select mode | The mask is set to 1 for slopes between minimum slope angle and maximum slope angle; otherwise it is set to 0 |
| Maximum slope angle | The maximum slope in degrees of the terrain |
| Minimum slope angle | The minimum slope in degrees of the terrain |