Spread:
This
slider creates a spot light effect by controlling the diameter of the
light. Move the slider to 2%.
The results are shown in example (2)
and (2a).
Elevation:
With Spread
still at 2%
move the Elevation
slider to 2%
(3a).
This creates the ray effect you see in (3).
Distance:Move the slider left to reduce or right to increase the rays beam of
light as
shown in examples (4)
and (4a).