9

Lens Effects Focus Filter 363
TheLensEffectsFocusdialogcontainsapreview
window, and an area below to control the
parameters of Focus.
Preview group
Preview window—Lets you quickly preview the
Focus effect.
Prev iew—Displays a generic scene to which you
can quickly set up a Focus effect. Appears light
green when selected.
V P Qu eue—Lets you preview the scene in the Video
Post queue. Preview must be selected for the VP
Queue func t ion to work.
Focus Control group
Thesettingsontheleftsideofthepanelletyou
select a method for blurr i ng your scene. The
settings on the right side of the dialog let you
determine how much blurring is applied to the
scene.
Scene B lur—Applies t he blurring effect to the entire
scene, not just a portion of it.
Radial Blur—Applies the blurring effect to the
entire scene in a r adial fashion, star ting at the
center of the frame. This is useful for emphasizing
fish-eye lens effects and effects where the edges of
theframeareblurred.ThistypeofFocusdepends
on the Focal Range and Limit s ettings.
A scene with a radial blur is applied.
Focal N od e—Lets you select a specific object in the
scene as the focal point for blurring. The selected
objects remains in focus, while objects outside of
the set Foc al L imit are blurred.
Select—Displays the S elect Focal Object dialog
so you can selec t a sing le 3ds Max object to use
as the focal object. The object you selec t can be
animated over time, which results in animated
follow focus effects. You can also choose your
camera target as the focal object so its depth in the
scene determines the focus.
Affect Alpha—When this option is selected, the
blur effect is also applied to the Alpha channel of
the image when you render to a 32-bit format.
Select this option to comp osite the blurred image
over another .
Hori z. Focal Loss—Specifies the amount of blur
applied to the image in the horizontal (X-axis)
direction. Values range from 0 to 100% focal loss.
This parameter can be anim ated (page 3–349).
Lock —Locks the horizontal and vertical loss
settings together. When selected, the vert ical
focallossisautomaticallyupdatedtomatchyour
changes to the hori zontal loss.
Vert. Focal Loss—Specifies the amount of blur
applied to the image in the vertical (Y-axis)
direction. Values range from 0 to 100% focal loss.
This parameter can be animated.
Focal Range—Specifies how far away from the
center of the image (Radial Blur) or from the
camera (Focal Object) the blur effect begins.
Increasing values move the radius of the effect
farther away f rom the camera or the center of the
image. This p arameter can be animated.
Focal Limit—Specifies the distance from the center
oftheimage(RadialBlur)orthedistancefromthe
camera (Focal Object) at which the blur effect is at
fullstrength.SettingahighFocalLimitwithalow
FocalRange,producesagradualincreaseinthe
amount of blur in the scene, while setting Focal
Limit and Range close together produces a rapid
blur effect over a short distance. This parameter
can be animated.
Note: Do not set Focal Range and Focal Limit to the
same value. This produces an abr upt change from
a blur to a sharp focus, producing an undesirable
visual effect.