The Terrain Editor lets you easily generate and alter terrain through its Create, Region, and Edit tools.

Create Tab
The Create tab includes the Generate, Import, and Clear tools.

Tool | Description |
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Generate | Allows you to set a map position and size, choose biomes, then generate a randomized terrain with a unique seed (ID) through the following settings:
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Import | Allows you to import heightmaps and colormaps through the following settings: |
Clear | Lets you clear all terrain within the experience. |
Region Tab
The Region tab is made up of the following tools and settings:

Tool | Description |
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Select | Lets you select an area of terrain so you can move, resize, rotate, copy, delete, or fill it with a specified material. |
Move | Lets you move the selected area to a new position. When the Merge Empty setting is enabled, the moved region is merged with surrounding terrain. |
Resize | Lets you scale the selected area to a new size. When the Merge Empty setting is enabled, the scaled region is merged with surrounding terrain. |
Rotate | Lets you rotate the selected area to a new orientation in 90° increments. When the Merge Empty setting is enabled, the rotated region is merged with surrounding terrain. |
Copy | Copies the selected area so that it can be duplicated (pasted). |
Paste | Pastes a copied area to a new selected location. |
Delete | Deletes the selected area. |
Fill | Lets you fill all voxels in the selected area with a chosen material. |
Edit Tab
The Edit tab is made up of the following tools:

Tool | Description |
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Add | Quickly adds terrain based on the brush settings. |
Subtract | Quickly subtracts terrain based on the brush settings. |
Grow | Gradually adds terrain on top of other terrain. |
Erode | Gradually carves away terrain from other terrain. |
Smooth | Smooths terrain to get rid of sharp corners. |
Flatten | Flattens terrain using the special Flatten Mode brush setting. |
Paint | Paints a new material on top of any previously set material. |
Sea Level | Lets you create a consistent water level or remove (evaporate) all water within a region. |
Replace | Lets you replace a source material with a target terrain material, either within a box area or using a brush. |
All of the above tools, with the exception of Sea Level, share the following brush and material settings:
Setting | Description |
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Shape | Sets the brush shape to either a sphere, cube, or cylinder. |
Base Size | Sets the brush size from 1 to 64. |
Height | Sets the brush height from 1 to 64. This setting is only available for the cube or cylinder brush shape. |
Strength | Sets the brush strength from 0.1 to 1. This setting is only available when using Grow, Erode, Smooth, or Flatten. |
Flatten Mode | Only available when using the Flatten tool.
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Pivot Position | Sets the vertical anchor point of the brush to either the bottom, center, or top of where the brush connects with the existing terrain. |
Plane Lock | When editing terrain with the visual plane enabled, the brush stays locked to the plane. The following options control how plane editing behaves:
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Snap to Voxels | Snaps the brush to the nearest voxel. |
Ignore Water | Ignores water when adding or subtracting terrain. |
Ignore Parts | Ignores parts when subtracting terrain. |
Auto Material | Blends new terrain with surrounding terrain. This setting is only available when using the Add or Grow tools. |
Material | Sets the material for the edit tool. |