8

752 Chapter 8: Modifiers
Note:
When you turn on Use Relative Offsets and
play back a cached animation with the mo d ifiers
turned on, the cached vertex positions are
calculated relative to their positions as calculated
by the modifiers. For example, if you record a
Bend animation to a cache file, and then play it
back with both Use Relative Offsets and the Bend
modifier turned on and Strength=1.0, all ver tex
positions are doubled, resulting in exaggerated
motion.
Strength—Affects the motion relative to the
original animation. Available only when Use
Relative Offsets is turned on. Default=1.0.
Range=-10.0 to 10.0.
At 1.0, the animation plays back the same as
recorded. With st rengths between 0 and 1, the
animation is relatively restrained. At strengths
greater than 1, the animation is exaggerated. With
negative Strength settings, the motion is reversed.
Ena ble Modi fier s B el ow—Turns on a ll st ack
modifiers below the Point Cache modifier. Use this
when you want to change modifier settings.
Disable Modifiers B elow—Turn s of f al l t he obje c t’s
stack modifiers below Point Cache so that only the
cached vertex animation appears w hen you play
back the animation.
Record Cache group
Cont ains settings for recording vertex animation.
Active—After you save or load a cache file, its name
appearsinthisfield.
Record—Stores the vertex animation to a disk file.
Click Record to activate the Save Points dialog,
which lets you specify a path and file name for
the cache file. Click Save to record the file, and
then load it into the Point Cache modifier, ready
for playback.
Tip: Tochangethepathorfilename,useSetCache
with a different cache file. This file must already
exist, but you can record over it.
Set Cache—Loads a vertex animation from a cache
file on disk into the Point Cache modifier. If the
number of vertices in the cache fi le does not match
the number of vertices in the object, a warning
appears, but no error occurs.
Start T ime—Sets the first frame for recording the
vertex animation. Default=first frame of the active
time segment.
End Time—Sets the last frame for recording the
vertex animation. Default=last frame of the active
time segment.
Samples—Sets the number of evenly spaced
samples per frame. Increase this number when
rendering with motion blur, which uses sub-frame
sampling.
Poly Select M odifier
Make a selection. > Modify panel > Modifier List > Poly
Select
Make a selection. > Modifiers menu > Selection Modifiers
> Poly Select
The Poly Select modifier lets you pass a sub-object
selection up the stack to subsequent mod ifiers.
It provides a superset of the selection functions
available in
Editable Poly (page 1–1012) .You
can select vertices, edges, b orders, polygons, and
elements. You can change the selection from
sub-object level to object level.
When you apply the Poly Select modifier
and then go to any sub-object level, the
select-a nd-transform buttons in the to olbar
are una vailable, and the Select Object button is
automatically activated.