| spacing | Pixel spacing for the brush GUI controls. |
| flags | Specifies which brush controls to display in the Terrain tool UI. |
| textureResolutionPerTile | The resolution per Terrain tile of the Texture, which the tool is editing. Unity uses this value to calculate Brush size limits. |
Displays the default controls for the brush in the tool inspector.
If the tool is editing multiple Textures on a Terrain, textureResolutionPerTile is the largest resolution among them. Additional resources: IOnPaint.brushSize and IOnPaint.brushStrength.