9

248 Chapter 18: Effects and Environments
Radial Color group
The Radia l Color settings affect the inner and
outer colors of the effect. You can set the color
swatches to set the inner and outer colors of the
Lens Effect. You can also use bitmaps such as
gradient or cellular to determine the radial color.
Fa lloff Cur ve—Displays the Radial Falloff dialog
(page 3–257) in which you can set weights for the
colors used in Radial Color. By manipulating the
Falloff Curve you can make the effect use more of
one color or map than the other. You can also use
a map to determine the falloff when a light is used
as a L ens Effects source.
Section Color group
Selection Color determines the color of the effect
by using three different color swatches that are
matched to the three sections of the effect. A map
can a lso b e used to determine section color.
Mix—MixescolorssetinRadialColorandcolors
set in Sec tion Color. Setting the spinner at 0 will
only use values set in Radial Color while setting
thespinnerat100willonlyusevaluessetin
Section Color. Any value between 0 and 100 will
mix between the two va lues.
Fa lloff Curve—Displays the Circular Falloff dialog
(page 3–254) in which you can set weights for the
colors used in Section Color. By manipulating the
Falloff Curve you can make the effect use more of
one color or map than another . You can also use a
map to determine the falloff when a light is used
as a L ens Effects source.
Radial Size group
Determines the radial size around the p articular
Lens Effect. Clicking the Size Curve button
displays the Radial Size dialog (page 3–259).
Using the Radial Size dialog you can create points
on a line and move those points along a graph
todeterminewheretheeffectshouldbeplaced
around the light or object. You can also use a map
todeterminewheretheeffectshouldbeplaced.A
check box is used to act ivate the map.
Star Element rollout, Option s panel
Apply Element To group
Lights—Applies the eff ect to lights picked in Lens
Effects Globals under the Parameters tab in the
Lights group box.
Image—Applies the effect to the rendered image
using p arameters set in Image Sources.
Image Centers—Applies to the center of an object
or to portions of an object as determined by the
Image Filters.
Image Sources group
Object ID—Applies the Lens Effect to particular
objects in your scene that have a corresponding
G-Buffer (page 3–946) (or Object) ID. The
G-Buffer is a geometry buffer and c an be defined
when you right-click any object and select