Triton Perspective - Manual (Page 122)

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Right-click on the DTM layer or root bathymetry file tree node and select the 'Relief Shading'
option as shown below:
Selecting 'Relief Shading' will open the following window:
By checking the box next to “On” the user can create relief shading of the bathymetry image.
The color square next to “On” allows the user to select a “beam” shade. This will be the
overall translucent color cast on the image. Other user-defined settings include:
 Sun Elevation: This is the elevation of the beam in degrees above the theoretical
horizon. For example, 30 degrees would show relief as viewed from 30 degree above the
horizon.
 Sun Azimuth: This is position of the beam source. For example, 270 degrees would
display the image, as a beam shined on it directly from the West.
 Reflectivity: This adjusts the amount of energy that would be reflected from the applied
sun illumination affecting the brightness of the image.
 Scaling: This applies a multiple factor to exaggerate or diminish the gridded data relative
to itself. It works as a vertical exaggeration to emphasize topographic relief in the shaded
imagery.
Here is an example of bathymetry data without relief shading and then with relief shading
turned on: