2012

Table Of Contents
Example of Ellipsoidal distribution
In this example, the points in the negative Z direction are the same distance
from the origin as the corresponding points in the positive Z direction, so the
same amount of light shines upward and downward. No point has a very large
X or Y component, either positive or negative, so less light is cast laterally
from the light source.
To create a web distribution with a manufacturers IES file
1 At the command prompt, enter lightingunits and set the value to 1
(American units) or 2 (International SI units) for photometric lighting.
2 At the Command prompt, enter properties to activate the Properties
palette.
3 Enter spotlight at the Command prompt.
4 In the drawing, select the light. The properties for the spotlight are
displayed in the Properties palette.
5 Under the General panel, change the lighting Type from spotlight to
web.
6 Under the Photometric Web panel, select the blank text box.
7 Click the browse button and then select an IES file.
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