Creates a spotlight that emits a directional cone of light.
Button
Ribbon: Visualize tab
Lights
panelSpotNot available on the ribbon
in the current workspace Menu: ViewRenderLightNew
SpotlightNot available in menus
in the current workspace Toolbar: Lights
A spotlight distribution casts a focused beam of light like a flashlight, a follow spot in a theater, or a headlight.
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
If the LIGHTINGUNITS system variable is set to 0, the following prompt is displayed:
Enter an option to change [Name/Intensity/Status/Hotspot/Falloff/shadoW/Attenuation/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/Photometry/Status/Hotspot/Falloff/shadoW/Attenuation/filterColor/eXit] <eXit>:
Specifies the name of the light. You can use uppercase and lowercase letters, numbers, spaces, hyphens (-), and underscores (_) in the name.
Sets the intensity or brightness of the light. The range is 0.00 to the maximum value that is supported by your system.
Specifies the angle that defines the brightest cone of light, which is known to lighting designers as the beam angle. This value can range from 0 to 160 degrees or the equivalent values based on AUNITS.
Specifies the angle that defines the full cone of light, which is also known as the field angle. This value can range from 0 to 160 degrees. The default is 50 degrees or the equivalent values based onAUNITS. The falloff angle must be greater than or equal to the hotspot angle.
Photometry is the measurement of the luminous intensities of visible light sources. Photometry is available when the LIGHTINGUNITS system variable is set to 1 or 2.
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 for a lamp is the perceived power emitted in all directions. Luminance is the total luminous flux incident on a surface, per unit area.
Enter an intensity value in candelas, the perceived power in a luminous flux value, or illuminance value for the total luminous flux incident on a surface.
Enter f to specify the perceived power in a luminous flux value.
If you enter i, you can specify the intensity of the light based on an illuminance value.
The illuminance value can be specified in either lux or foot-candles. Enter d to specify a distance to use to calculate illuminance.
Specify the color of the light based on a color name or a Kelvin temperature. Enter ? to display a list of color names.
Enter a text string using wild card characters to display a partial listing of color names, or an asterisk (*) to display all the possible choices.
If you enter k, you can specify the color of the light based on a Kelvin temperature value.
Displays realistic shadows with softer shadows (penumbra) based on extended light sources.
Specify the shape of the shadow by entering s and then the dimensions of the shape. (For example, the radius of the sphere or the length and width of a rectangle.)
Specify the sample size by entering a.
Specify the visibility of the shape by for the shadow by entering v.
Controls how light diminishes over distance. The farther away an object is from a spotlight, the darker the object appears. Attenuation is also known as decay.
