# Sharpen Peaks Tool Use the Sharpen Peaks Tool to sharpen peaks and flatten flat areas of the Terrain. ![Before and after use of the sharpen peaks tool](images/2-22-Sharpen-03.png) Select a Terrain tile to bring up the Terrain Inspector. In the Terrain Inspector, click the **Paint Terrain** icon, and select **Effects** > **Sharpen Peaks** from the list of Terrain tools. ![Sharpen peaks selected from the Inspector](images/2-22-Sharpen-01.png) Alternatively, select the terrain, and select the sharpen peaks icon on the terrain toolbar. ![sharpen peaks icon](images/Icons/SharpenPeaks.png) ## Parameters ![Sharpen peaks control parameters](images/2-22-Sharpen-02.png) | **Property** | **Description** | | ------------- | ------------------------------------------------------------ | | **Sharpness** | Controls the sharpness of peaks on a scale of 0 to 1. Values close to 1 make peaks sharper, and values closer to 0 flatten areas. |