• Daylight: The standard lighting mode. (This is TNP’s original default 3-D lighting mode.) 
• Fog: Shrouds the landscape in a simulated fog. Fog is thickest at the most distant portions of the map. 
  
• White: The map image is removed, and the landscape is shown in white and shades of gray. 
  
• Moonlight: Darkens the terrain. 
  
• Wire Frame: The map image is replaced by a "wire" mesh pattern. Removing the map detail helps draw attention to the contours.
  
• Overhead: Positions the light source directly over the map, changing the shadows. Overhead lighting is useful for brightening relatively flat areas, so map details are highlighted better. 
  

Choose Small, Medium or Large for the size of the map area to be displayed. On some older computers, a large area might slow performance. If the 3-D rotation/tilt controls seem slow, choose Small. To improve performance try updating your video display drivers.

• Move Viewpoint in Direction of Arrow:
  When this option is checked, the arrows represent the direction in which you want to "go"- as though you were at the controls of an airplane or a car. For example, clicking the right arrow will move your viewpoint to the right. Clicking the in arrow will move you closer in to the map image. (This is TNP’s default setting.)
• Move Landscape in Direction of Arrow:
  This produces the exact opposite effect as the one described above. The arrows refer to the map image itself (rather than your viewpoint). So, if you click the right arrow, it's as though you are reaching out and spinning the map image to your right. Likewise, clicking the in arrow is like pushing the map away from you, which gives you a broader view of the area.

• Vertical Exaggeration
  Vertical exaggeration emphasizes contours, making it easier to distinguish differences in relative heights. TNP’s default setting is 1.5, meaning that all elevations are shown at 1.5 times their actual value.
  
  The lowest setting available is 0.5, which downplays the elevations, showing all contours at half their true height. Choose varying degrees of exaggeration, up to 5 times the actual height. High exaggeration is useful for emphasizing contours in relatively flat areas. 
  
  Since this is an initial setting, this means that the setting you specify will automatically be used whenever you first enable 3-D View. You can increase and decrease the Vertical Exaggeration manually while viewing the 3-D image by using the Vertical Exaggeration buttons on the bottom of the 3-D Compass Control Bar; this setting is what Terrain Navigator Pro will use for your initial 3-D view.
• Viewpoint Height
  Select a viewing angle for Terrain Navigator Pro to use when you first start 3-D View. Choose Ground, Low, Medium, High, or Very High.
  
  Since this is an initial setting, this means that the setting you specify will automatically be used whenever you first enable 3-D View. (You can adjust the Viewpoint Height in the 3-D view by dragging the control on the 3-D Compass Control Bar, but this is what Terrain Navigator Pro will use for your initial 3-D view.)