You can visualise data and 3D-models on, above and below the terrain. In cases where you need to show structures below the terrain, you can turn on terrain opacity control in your project view. This feature allows the user to interactively change the terrain opacity, allow sub-terrain objects to be visible.
Turn on the transparency feature in projects when you need it
Use the slider to interactively control the terrain opacity
Visualise tunnels, parking garages and structures under the terrain
When the terrain is transparent, you can navigate through the terrain and into 3D-structures below the ground