Firstborn/Library/PackageCache/com.unity.terrain-tools@4.0.3/Documentation~/toolbox-altitude-heatmap.md

Altitude Heatmap Visualization

Select Altitude Heatmap to visualize the height of your Terrain at different levels of elevation.

Property	Description
Reference Space	Select a splatmap from the list to preview it on multiple Terrain tiles.
Measurement Unit	Select either Meters or Feet. A Unity unit is equivalent to 1 meter, which is approximately 3.28 feet.
Levels	Use the slider to select how many levels of elevation to visualize.
Levels Altitude	Alternatively, enter an altitude level in the number field.
Levels Color	Use the color field or Eyedropper tool to select a color to use when visualizing a specific height level.