The Smooth Topography tool in the Terrain tab is used to soften and blend uneven ground surfaces. It helps remove sharp edges and sudden elevation changes, creating a more natural and gradual terrain appearance. This tool is especially useful after using the Spray or Topography Line tools, when you want to refine the surface and make it look more realistic.

To use the Smooth Topography tool, select the Terrain tab and click the Smooth icon. In the Properties panel, choose the brush shape (Round or Rectangle) and adjust its size. Then, in the 3D view, click and drag over the area you want to smooth. The tool will automatically blend the elevations within the brush area, reducing harsh slopes and creating a more even transition between heights.

The Smooth Topography tool improves the overall quality and realism of your landscape design.

It ensures that terrain surfaces look natural and professionally graded. By smoothing rough areas, you can create a cleaner, more polished site plan suitable for presentation and construction planning.