Light source parameters are displayed and can be modified in the Object Info palette. The parameters available depend on the type of light source.
Click to show/hide the parameters.
A symbol that contains a light object can be copied to reproduce identical lights. Change the light intensity for each symbol in the Object Info palette.
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Once a light has been placed on the drawing, the Selection tool can be used to change its location, and, depending on the light type, beam parameters.
Light Type |
Beam Parameter |
Description |
Point, Spot, Directional |
Light location |
Click the light with the move cursor and drag it to its new location.
The spot light target handle is not locked to its target. The target handle location may need re-adjusting after moving the spot light. |
Spot, Directional |
Orientation and view |
Select the light; in the Object Info palette, click Set Light to View to set the light orientation to the current view orientation, or click Set View to Light to set the orientation of the view to that of the light |
Directional |
Azimuth and elevation direction |
Click the azimuth or elevation control points to change the directional light parameters. Move the handles with the mouse, or enter the azimuth and elevation values in the Data bar.
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Spot |
Target direction |
Click the handle with the Selection tool to change the spot light target direction; drag to the new target and click to set
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Directional |
Beam direction |
Click and drag with the hand cursor to change the beam direction
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Custom |
Target and axis |
The black vector points to the target location; its axis line (the light axis) connects the light source location to the target. The red vector starts at the light source location, pointing to a reference point on the “equator” of the polar intensity distribution. Also known as the “zero angle line,” it represents the origin for measuring the intensity on the light curve.
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