2011

Table Of Contents
Resulting intensity. Gives the final brightness of the light. (Product of lamp
intensity and intensity factor. Read-only.)
Lamp color. Specifies the inherent color of the light in Kelvin temperature
or standard.
Resulting color. Gives the final color of the light. This is determined by a
combination of the lamp color and the filter color. (Product of lamp color
and filter color. Read-only.)
If you select Web in the Type property for a photometric light, additional
properties are offered in the Photometric Web and Web offsets panel in the
Lighting Properties palette.
Web file. Specifies the data file describing the intensity distribution of the
light.
Web preview. Displays a 2D slice through goniometric data.
Rotation of X. Specifies a rotational offset of the web about the optical X
axis.
Rotation of Y. Specifies a rotational offset of the web about the optical Y
axis.
Rotation of Z. Specifies a rotational offset of the web about the optical Z
axis.
Geometry Including Target Properties
The Geometry panel provides controls for the location of the light. If the light
is a target point light, spotlight, or weblight additional target point properties
are available. A light can be changed to a light with target properties or changed
from a light with target properties to one without by selecting either Yes or
No in the Targeted property.
Attenuation (Point Lights and Spotlights)
Attenuation controls how light diminishes over distance. The farther away
an object is from a light, the darker the object appears. You can specify no
attenuation, inverse linear, or inverse squared (POINTLIGHT, SPOTLIGHT).
Attenuation is not active for photometric lights.
Another way to control the start point and end point of light is to use limits.
Limits work like clipping planes to control where light is first emitted and
where it stops. Using limits can increase performance by removing the need
Control Light Properties | 2051