To Work With Hillshading and Vertical Exaggeration

Hillshading adds shading to 3D surface layers by casting the sun's light across a surface from the direction and angle you specify.

To specify hillshading settings

1. Click Analyze tabFeature panelSurface Hillshade. Find
2. In the Hillshade Settings dialog box, specify the Direction and Angle of the sun you want to use for hillshading by doing one of the following:
   • Enter the direction and angle of the sun manually:
     • For Direction, specify the direction from which the light should come, for example, East or West. Enter a direction value into the edit box, drag the yellow disk in the compass to the position you want, or use Settings.
     • For Angle, specify how high in the sky the light is located, such as near the horizon, directly overhead, or somewhere in between. Enter an angle into the edit box, drag the yellow disk to specify an angle, or use Settings
   • Click Settings to specify sun settings in the Sun Properties palette using date, time, and location. Then, redisplay the Hillshade Settings dialog box and click Import.
3. Click OK.

To turn hillshading on or off

1. In the Display Manager , right-click a surface layer, and click Edit Display Style.
2. Do one of the following:
   • To turn off hillshading, set the Hillshade Band to 0.
   • To turn on hillshading, set the Hillshade Band to 1 and verify that the Elevation Band is set to 1.

To change the vertical exaggeration

• In the status bar, for Exaggeration, select a vertical exaggeration value from the list. Select Custom to specify a value that is not in the list.

A higher number makes the elevation changes appear more extreme. A lower number or a decimal value makes it appear less extreme.