9

Advanced Lighting Panel (Object Properties Dialog) 123
Note:
If multiple objects are selected and have
different By L ayer settings, this button will read
‘Mixed’.
Multiplier—Affects the length of the motion-blur
streak.
If you choose either form of motion blur here in
theObjectPropertiesdialog,youmustalsochoose
to apply that type of blur in the Render Scene dialog
(page 3–2).
The rendering speed of object motion bl ur
depends on the complexity of the geometry to
which it’s assigned. The rendering speed of image
motion blur depends on the amount of rendered
screen space taken up by the blu rring object.
In most cases image motion blur renders more
quickly. Object motion blur renders more quickly
when applied to very simple objects, and image
motion blur renders more slowly when the object
takesupalotofscreenspace,andmovesallthe
way across the screen in a single f rame.
Changing the Object Blur M ultiplier value.
Enabled—When on, enables motion blur for
this object. When off, mot ion blur is disabled
regardless of the other blur settings. Default=on.
You can animate the Enabled check box. The
main use of animating Enable is to apply motion
blur over only a limited range of frames. This can
save a tremendous amount of time when you are
rendering an animation.
You can enable motion blur for lights and cameras.
With the mental ray renderer, moving lights and
cameras can generate motion blur. However,
they do not gener ate motion blur with the default
scanline renderer.
•
None—Turns off the state of motion blur for the
object.
•
Object—Object motion blur (page 3–981)
provides a time-slice blur effect.
•
Image—Image motion blur (page 3–955) blurs
the object’s image based on the velocity of each
pixel.
Advanced Light ing Panel (Obj ect
Properties Dial og)
Select object or objects. > Edit menu > Object Properties
> Object Properties dialog > Advanced Lighting panel
Select object or objects. > Rig ht-click. > Transform
(lower-right) quadrant of the quad menu > Properties >
Object Properties d ialog > Advanced Lighting panel
Layer manager > Click the icon next to an object ’s name.
> Object Properties dialog > Advanced Lighting panel
This panel of the Object Propert ies dialog lets you
customize how objects behave under advanced
lighting (the Light Tracer (page 3–44) or radiosity
(page 3–51)).