2011

List of Prompts
The following prompts are displayed.
Specify light direction FROM <0,0,0> or [Vector]: Specify a point or enterv
Specify light direction TO <1,1,1> Specify a point
If you enter the Vector option, the following prompt is displayed:
Specify vector direction <0.0000,-0.0100,1.0000>: Enter a vector
After you specify the light direction and if the LIGHTINGUNITS system variable
is set to 0, the following prompt is displayed:
Enter an option to change
[“Name”/“Intensity”/“Status”/“shadoW”/“Color”/“eXit”] <eXit>:
If the LIGHTINGUNITS system variable is set to 1 or 2, the following prompt
is displayed:
Enter an option to change [“Name”/“Intensity
factor”/“Status”/“Photometry”/“shadoW”/“filterColor”/“eXit”] <eXit>:
NOTE When the LIGHTINGUNITS system variable is set to 1 or 2, the Attenuation
option has no affect on the creation of the light. It is only maintained for scripting
compatibility.
Name
Specifies the name of the light. You can use uppercase and lowercase letters,
numbers, spaces, hyphens (-), and underscores (_) in the name. The maximum
length is 256 characters.
Intensity/Intensity Factor
Sets the intensity or brightness of the light. The range is 0.00 to the maximum
value that is supported by your system.
Status
Turns the light on and off. If lighting is not enabled in the drawing, this setting
has no effect.
Photometry
Photometry is available when the LIGHTINGUNITS system variable is set to
1 or 2. Photometry is the measurement of the luminous intensities of visible
light sources.
In photometry, luminous intensity is a measure of the perceived power emitted
by a light source in a particular direction. Luminous flux is the perceived
power per unit of solid angle. The total luminous flux is the perceived power
DISTANTLIGHT | 653