Surfer's fly-through feature allows you to create an animated view moving across or through a 3D model. The fly-through can be recorded as an AVI movie file for later viewing and presentations. Follow the steps below to create a fly-through:

1. In a 2D plot window, create a map with 3D data (e.g. Post Map, Base, Base from Data, 3D Surface, Contour, Color Relief , etc).
2. With the Map frame or a map layer selected in the Contents window, click Home | Add to Map | Layer | Empty Base.
3. In the Contents window, select the new empty Base map layer.
4. Click Features | Insert | Polyline. You can insert a polygon instead of a polyline if you prefer.
5. In the Plot window, draw a line where you would like your fly-through path to be located.
6. When finished, double click to end the polyline or polygon and then press ESC to exit Draw mode.
7. Click Map Tools | View | 3D View. The 3D View window opens. Click and drag the model to rotate or tilt it to your desired view.
8. Click 3D View | Fly-Through | Create/Edit. The Flight Path Editor dialog opens.
9. For the Input Vector Path, click the drop down arrow and select the Base layer that contains the polyline or polygon you drew: 
   
10. Set the Position, Animation and Camera Aim fields to suit your desired output. For example:
    1. Under the Position section, you might want to set the Elevation to something a little higher than 0. A 0 elevation relative to the surface will have the camera directly on the surface, which might cause it to dip under the surface along the flight. You might want the camera a little above the surface for better viewing. 
    2. Under the Animation section, you might want to change the Duration (seconds) to increase or decrease the speed of the flight.
11. Click Preview to check that your fly-through is satisfactory. If it isn't, make any adjustments as necessary and click Preview again to view the changes.
12. When the fly-through is satisfactory, click OK.

You can now play your fly-through by clicking 3D View | Fly-Through | Play, or click 3D View | Fly-Through | Record to save the animation as an AVI movie file.

Updated November, 2021