2011

Table Of Contents
Access Methods
Button
Toolbar: Modeling tool set Lights tool group (expanded) Weblight
List of Prompts
The following prompts are displayed.
Specify source location <0,0,0>: Enter coordinate values or use the pointing device
Specify target location <1,1,1>: Enter coordinate values or use the pointing device
Enter an option to change [Name on page 1134/Intensity factor on page 1134/Status
on page 1134/Photometry on page 1134/weB on page 1135/shadoW on page
1135/
filterColor on page 1136/eXit on page 1136] <eXit>:
NOTE The LIGHTINGUNITS system variable must be set to a value other than 0
to create and use weblights.
Name
Specifies the name of the light.
Intensity Factor
Sets the intensity or brightness of the light.
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 in per unit of solid angle. The total luminous flux for a lamp is the
perceived power emitted in all directions. Luminance is the total luminous
flux incident on a surface, per unit area.
1134 | Chapter 23 W Commands