8

Lens Effects Focus Filter 379
determine how much blurring is applied to the
scene.
Scene B lur—Applies the blurring effect to the e ntire
scene, not just a p ortion of it.
Radial Blur—Applies the blurring effect to the
entire scene in a radial fashion, starting at t he
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 settings.
A scene with a radial blur is applied.
Focal Node —Lets you select a specific object in t he
scene as the focal point for blurring. The selected
objects remains in focus, while objects outside of
the set Focal Limit are blurred.
Select—Displays the S elect Focal Object dialog
so you can select a single 3ds Max object to use
as the focal object. The object you select 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 composite the blurred image
over another .
Hori z. Focal Loss—Specifies the amount of blur
applied to the image in the horizontal (X-axis)
direction. Va lues range from 0 to 100% focal loss.
This parameter can be
animated (page 3–365) .
Lock —Locks the horizontal and vertical loss
settings together. When selected, the vertical
focal loss is automatically updated to match y our
changes to the horizontal loss.
Vert. Focal Loss—Specifies the amount of blur
applied to the image in the vertical (Y-axis)
direction. Va lues range from 0 to 100% focal loss.
This parameter can be animated.
Focal Ran ge—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 from the camera or the center of t he
image. This parameter can be animated.
Foca l Limit—Specifies the distance from the center
oftheimage(RadialBlur)orthedistancefromthe
camera (Focal O bject) 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 abrupt change from
a blur to a sharp focus, producing an undesir able
visual effect.
Wa rn in g: When you animate Lens Effects parameters,
this creates pointers into the actual scene, so Lens Effects
animation is lost if you save the Video Post queue in a
VPX file (page 3–1125) . To preserve the animation, save
the Video Post data, including Lens Effects animation,
in the MAX file.
Button group
Reset—ResetsLensEffectsFlaretoitsdefault
settings.
Loa d—Displays a Windows-standard file open
dialog from which you can select the settings file
you want to load.
Save—Displays a Windows-standard Save As
dialog in which you specify a directory and
filename.LensEffectsFocussettingsaresavedas
LZO files.