> For the complete documentation index, see [llms.txt](https://harpiagames.gitbook.io/prefab-brush-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://harpiagames.gitbook.io/prefab-brush-documentation/detailed-guide/working-with-terrains/terrain-fit.md).
# Terrain Fit
Automatically adapt the terrain to newly placed objects. Adjust the fit area, smoothing strength, and height offset for seamless integration.
#### How to Use Terrain Fit
1. **Enable Precision Mode**\
Terrain Fit works **only in Precision Mode**.
2. **Check Your Prefab**\
Ensure your prefab contains **at least one Mesh Renderer** somewhere in its hierarchy.
3. **Enable Terrain Fit**\
Toggle **Terrain Fit** on in the Precision Mode settings.
4. **Adjust the Settings**
* **Size** – Controls the affected terrain area
* **Offset** – Adjusts the vertical alignment between the object and the terrain
* **Smoothness** – Defines how softly the terrain blends around the object
### Removing Trees
In order to remove trees, just check the "Remove Trees" Toogle
#### Pro Tips 💡
**Pro Tip 1 – Object Offset Shortcut**\
Hold **`T`** (default) and move your mouse **up or down** to adjust the object’s vertical offset.\
The terrain will automatically follow the object.
**Pro Tip 2 – Terrain Offset Shortcut**\
Hold **`H`** (default) and move your mouse **up or down** to offset the terrain **independently** from the object.
#### Important Notes ⚠️
* Terrain Fit **only works in Precision Mode**
* The placed object **must have at least one Mesh Renderer** in its hierarchy
* In **older Unity versions (2021–2022)**, Terrain Fit may cause minor lag while adjusting the terrain
* No noticeable lag has been observed in **Unity 6**
