Firstborn/Library/PackageCache/com.unity.terrain-tools@4.0.3/Documentation~/create-add-brush-controls.md

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2023-03-28 13:24:16 -04:00
# Add UI for Brush controls
[Create your tool script](create-tool-script.md) showed you how to create a new custom tool without any additional functionality. The example below shows you how to add UI for Brush controls in your script.
```
using UnityEngine;
using UnityEditor;
using UnityEditor.TerrainTools;
internal class CustomTerrainToolWithBrushUI : TerrainPaintTool<CustomTerrainToolWithBrushUI>
{
private float m_BrushRotation;
// Name of the Terrain Tool. This appears in the tool UI.
public override string GetName()
{
return "Examples/Custom Terrain Tool with Brush UI";
}
// Description for the Terrain Tool. This appears in the tool UI.
public override string GetDesc()
{
return "This is a very basic Terrain Tool that doesn't do anything aside from appear in the list of Paint Terrain tools.";
}
public override void OnInspectorGUI(Terrain terrain, IOnInspectorGUI editContext)
{
editContext.ShowBrushesGUI(5, BrushGUIEditFlags.Select | BrushGUIEditFlags.Opacity | BrushGUIEditFlags.Size);
m_BrushRotation = EditorGUILayout.Slider("Rotation", m_BrushRotation, 0, 360);
}
public override void OnRenderBrushPreview(Terrain terrain, IOnSceneGUI editContext)
{
}
public override bool OnPaint(Terrain terrain, IOnPaint editContext)
{
return true;
}
}
```
This example still doesn't do much, but it does give some useful information about the Brush.