The Set Height tool has two main uses:
Set the height of an entire tile, or multiple tiles, to a specific value. This is important because you can’t work below the TerrainThe landscape in your scene. A Terrain GameObject adds a large flat plane to your scene and you can use the Terrain’s Inspector window to create a detailed landscape. More info
See in Glossary tile’s (GameObject) height. To sculpt sunken features, such as lakes or rivers, use the Set Height tool to move the starting height for sculpting above the GameObjectThe fundamental object in Unity scenes, which can represent characters, props, scenery, cameras, waypoints, and more. A GameObject’s functionality is defined by the Components attached to it. More info
See in Glossary’s initial height. You can also raise some tiles’ starting point well above other tiles, to create elevation zones in the world. Use sculpting tools such as Bridge, Raise or Lower Terrain, and Slope Flatten to smooth the transition between tiles.
Use a brush to raise or lower parts of the terrain. Use this to create flat areas that look human-made, such as roads. You can also create cliffs by using Set Height and then adding details with the Raise or Lower Terrain tool.
Tip: Sometimes, the Bridge tool is a better option for creating flat features. For more information, refer to Build a bridge between two points.
You can also use Set Height to reset a tile if you want to restart sculpting.
To set a height, in the Terrain tile’s Inspector window, select the Paint Terrain tool > tool dropdown > Set Height.
The Set Height tool is brush-based, unless you use the Flatten Tile or Flatten All options. To learn about working with brushes, refer to Brushes.
The Height Control tool has the following properties:
| Property | Function |
|---|---|
| Space | Set the starting point for the height value you enter in the Height field. Note that the Set Height tool can’t lower a tile below its Transform Position y-axis value, even if you enter a Height value lower than the y-axis value. The tool also can’t raise the tile above its maximum height property (Terrain Height in the Terrain Settings). If you select a height that, when added to the tile’s y-axis value, exceeds the tile’s maximum height property, the value is adjusted down when you select Flatten Tile or Flatten All, or use a brush. There are two options:
|
| Height | Enter a height value relative to either the world or local y-axis value. You can also sample a height on the terrain: press Shift (macOS: Control) and click on the Terrain to sample the height at the cursor position. If you’re using the Terrain Tools package, use press Ctrl instead of Shift. |
| Flatten Tile | Change the entire tile to the specified height, rather than use a brush-based workflow. Note that this flattens all features on the tile. |
| Flatten All | Change all sceneA Scene contains the environments and menus of your game. Think of each unique Scene file as a unique level. In each Scene, you place your environments, obstacles, and decorations, essentially designing and building your game in pieces. More info See in Glossary tiles to the specified height, rather than use a brush-based workflow. Note that this flattens all features on the tile. |