Set terrain height

To edit the height of the terrain, click the Terrain Edit Brush tool or click Terrains > Terrain Edit Brush in the main menu.

In the scene, click the terrain to adjust the height. Click and hold to continuously brush the terrain to the new height. You can change brush options, such as height, brush size, or smoothing terrain, in the Terrain Edit Brush tool options .

Tool options

The Terrain Edit Brush tool options include the following:

Terrain Edit Brush
Brush Size (m)	The brush size in meters defining the radius in which the terrain height is adjusted.
Elevation Picker	Allows you to pick the terrain height at the location of your mouse by clicking a terrain in the Viewport. Press Y to turn the elevation picker toggle button on and off.
Height (m)	The height in meters in which the terrain is adjusted.
Smooth Borders	Applies a smooth transition method at the brush border between the edited and the original terrain. None—No smoothing is applied. Smooth Range—Applies smoothing to the terrain in which the relative height difference at the brush border is interpolated within the specified range defined in meters (see Range). Constant Gradient—Applies a slope with a constant up or down gradient defined in degrees (see Gradient).
Range (m)	Radial range in meters in which to apply a smooth transition. Available for the Smooth Range and the Constant Gradient methods.
Gradient (°)	The gradient in degrees of the border slope. Available for the Constant Gradient method.
Easing	Applies a nonlinear smoothing to avoid sharp edges at the inner and outer fronts of the border region. When the toggle button is off, the smoothing is applied linearly. Available for the Smooth Range method.