Getting started with Terrain Tools
You should read the built-in Terrain documentation before you use the Terrain Tools package. Terrain Tools provides add-on tooling, which means it modifies and improves Unity's built-in set of Terrain features. Below are some examples of these advanced features.
For information about how to install Terrain Tools and Asset Samples, see Installing Terrain Tools and Sample Assets.
Paint Terrain
Terrain Tools adds fourteen new tools to the Paint Terrain drop-down menu, which include several Sculpting, Erosion, and Transform tools, Mesh Stamping, and upgraded Texture Painting and Terrain Stamping experiences.
Paint Details
Terrain Tools adds updates to the Paint Detail tool. These updates include the addition of enhanced brush controls, the ability to scatter multiple details simultaneously, and a new Layer filtering mode.
Brushes
Terrain Tools adds updates to Brush controls and Brush Mask Filters to enhance Terrain brushes. The new Brush controls rename Opacity to Brush Strength, and add the ability to set Brush Rotation, Brush Spacing, and Brush Scatter. You can also modify the maximum and minimum values of each Brush.
Terrain Toolbox
The Terrain Toolbox is a utility window that contains useful tools to help simplify Terrain workflows. It allows you to create new Terrain from preset settings or imported heightmaps, batch change Terrain settings on multiple Terrain tiles, and import/export splatmaps and heightmaps.
Noise Editor
The Noise Editor is a standalone window that lets you author and save noise patterns for the Noise Height tool. This allows you to work on Noise Setting assets without the need to have the Brush active and potentially modifying your Terrain.