Using Depth Cues in 3D Models

Select a foreground from the browser. Once you have selected a foreground, it is displayed in the tree. If you have already added a foreground to the model, a new selection will replace the old foreground.

1. Select the perspective viewing angle for the model.
2. On the tab, in the Environment group, select Foreground/Fog.
3. Select the General folder in Vertex Library.
4. Double-click the Depth Cue icon in the browser.
5. Visualize the view by pressing Shift+P to preview the depth cue.
   • If the model is entirely covered in fog, the distance between the fog and the viewing point is too small.
   • If all of the fog is far beyond the model, the distance is probably too large.
6. Select the foreground from the tree, and then select the context-sensitive function Edit Values.

   The Foreground Editing dialog box opens.

7. Click the Near depth cue parameter.
   • Enter a suitable distance from the viewing point to the fog starting plane in the Properties field in millimeters.
   • Click the Set button.
8. Click the Far depth cue parameter.
   • Enter a suitable distance from the viewing point to the plane of completely opaque fog in the Properties field in millimeters.
   • Click the Set button.
9. Click the Background Color depth cue parameter.
   • Click the Browse button, and select a color for the fog in the window.
   • Click the Set button.
10. Select OK.
11. Visualize the view by pressing Shift+P.