Drawing the terrain perimeter

The terrain perimeter is the outline of the ground you're modelling.

  1. Open the Site row, Sculpt tab, and click Draw terrain perimeter. Once you've changed the starting square it reads Edit terrain perimeter.
  2. Draw the outline with the tools in the bottom toolbar: Line, Rectangle or Curve.
  3. Use Select to move a vertex, to drag an edge's midpoint to add a vertex, or to drop a vertex on its neighbour to remove it. Eraser deletes the perimeter so you can draw your own.
  4. Click Finish to save the perimeter and start shaping the ground, or Cancel to discard.

An Area readout appears once there are three points. If a new outline sits clear of the existing ground, a dialog warns that finishing replaces the perimeter.