In this example, the Sculpt tool applies height values to raise or lower the height data for the Landscape. Simply clicking and applying movement over the region you want to paint
will adjust the values based on the tool settings used.
Use the following controls to sculpt your Landscape heightmap:
Left Mouse Button
Heightens or increases the heightmap or selected layer's weight.
Shift + Left Mouse Button
Lowers or decreases the heightmap or selected layer's weight.