As an example, use the demo sample file "SAMPLE Topo Data.GRD" from the SW3DD\DEMO SAMPLES folder:

Use the View function to enlarge the image by setting the Width or Depth scale factor:

Change the Height scale factor to show more relief on the image:

In the Coloring Scheme section, leave the default "Single Color" setting, and double-click the color bar to set the color to light gray. (You can select any color, but this example will use the light gray setting. After finishing this example, you should experiment with different color and lighting combinations.)

The last step of preparation for this example is to use the "Display and Print" section to change from the "wireframe" mesh drawing to the "surface" option to better illustrate the effects of lighting:

Now in the Lighting section, click the Enable Lighting checkbox, and click the Redraw button if the drawing does not automatically refresh.

You immediately see the effect of the lighting, accentuating the hills and valleys of the topography.  (For more information on 3DD Lighting, see the FAQ Lighting in 3DDisplay.)

Finally, to save the image as a 3DD document, in the File section, click on the "Save As" button:

You will be prompted for a name for the document file:

After the Document has been saved, you can open the Document in the future with the Open button in the File section:

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