Documentation

Unity Engine

User Manual

Script Reference

Unity Engine

Stamp a shape onto the terrain

Use a stamp or mesh to add or remove height as a set shape.
Read time 3 minutesLast updated a month ago
Use Stamp Terrain to stamp a shape onto the terrain. You can use either:
  • A brush, either built-in or custom. You can set the brush's height to create a full-sized feature in one click, rather than build up the height from multiple brush uses (like the Raise or Lower Terrain tool).
  • A mesh, such as an imported 3D model. This option is available only in the Terrain Tools package.

Access the tool

To use a stamp, in the Terrain tile's
Inspector

?

window, select the Paint Terrain tool > tool dropdown > Stamp Terrain.

Tool options

The Stamp Terrain tool is brush-based. To learn about working with brushes, refer to Brushes.

Stamp Controls in the built-in Terrain system

Property

Function

Stamp HeightHow much to increase the height when using the stamp. The range is from 
0
to the Terrain tile's maximum height (refer to Terrain Height in the Terrain Settings). Note that Stamp Height is multiplied by the Opacity property. For example, if Stamp Height is 
200
and Opacity is 
0.5
, the stamp's final height is 
100
.
SubtractRemove the stamp from the terrain. Note that Subtract works only if the Max – Add property is greater than 
0
, and can't dig below the Terrain tile's GameObject y-axis coordinate.
Max - AddIf the value is 
0
, the final height is the higher between the stamp and the existing terrain. If the value is 
1
, the final height is the combined heights of the stamp and terrain.

Stamp Controls in the Terrain Tools package

General Stamp Settings

Property

Function

Stamp ModeStamp a brush or a mesh.
BehaviourWhich parts of the Terrain to stamp.
MinApplies the stamp only where it lowers the Terrain. Areas under the stamp that are lower than the Stamp Height value remain unchanged.
SetApplies the stamp without referencing the height of the underlying Terrain.
MaxApplies the stamp only where it raises the Terrain. Areas under the stamp that are higher than the Stamp Height value remain unchanged.
Stamp HeightThe range is between the negative and positive values of the Terrain tile's maximum height (refer to Terrain Height in the Terrain Settings). Use negative values to subtract the stamp from the height, and positive values to add to the height. Note that Stamp Height is multiplied by the Brush Strength property. For example, if Stamp Height is 
200
and Brush Strength is 
0.5
, the stamp's final height is 
100
.
Blend AmountHow much to override existing Terrain features when using the stamp. The default value is 
0
, which fully overrides existing terrain features. To keep those features, set the value to 
1
; this makes the stamp shape indistinct. Tip: Use a solid smooth brush, such as the built-in circular brush, to raise the terrain without changing its details. For example, you can raise a hill without losing contours or details you created. Note that the higher the value of Stamp Height, the more distinct the stamp is, even for high values of Blend Amount.

Mesh Stamp Settings

Only available in the Terrain Tools package, when the Stamp Mode is
Mesh

?

.

Property

Function

MeshThe mesh to use as a stamp.
ScaleMake the mesh larger or smaller along any of its axes.
RotationRotate the mesh around any of its axes.

Additional resources