9

714 Chapter 8: Modifiers
For example, if you scale a brick wall with the
MapScaler (WSM) modifier applied, the bricks
w i ll a ll remain the same size as you increase the
size of the wall. However, if you scale the same
wal l with the MapScaler (OSM) modifier applied,
thesizeofthebrickswillgrowinproportionwith
the scale of the wall.
The MapScaler (OSM) modifier has two primary
benefits compared to the WSM version:
• As an object-space modifier, it can reside
anywhere in the s t ack and be collapsed with the
stack, rather than being restricted to the top of
the stack, as with world-space modifiers. This
lets other object-space modifiers take effect
after the map-scaling operation.
• When instanced among multiple objects, the
object-space version appears in the modifier
stack display when any number of objects is
selected. This differs from the world-space
version, which, when instanced among multiple
objects, appears in the st ack display only when
a single object is selected.
Tip: MapScaler a lso works at the sub-object level.
If the object you’re working on requires different
scaling of the texture map on each surface, you can
do so by creating a modifier stack with multiple
occurrences of the MapScaler modifier.
Inter face
Scale—Representsthesizeofonerepetitionofthe
texture pattern. Size is measured in current scene
units. Repetit ions occur across the object in the U
and V directions. Default=1.0.
Note: When the Use Real-World Texture
Coordinates switch is active in the General
Preferences dialog (page 3–815),thescalesetting
defaults to 1.0. If Use Real-World Texture
Coordinates is turned off, scale defaults to 100.0.
U/V Offset—Specify horizontal and vertical offsets
respectively. Available only when Wrap Texture
is off.
Wra p Text ur e—When on, Map Scaler attempts
to wrap the texture evenly around the object.
This option requires more computing, but
usually produces the most satisfactory results.
Default=on.
Wra p Usi ng S moothing G roups—When turned
on, textures are wrapped around corners when
they share the same smo othing groups. Curved
wallswillmapsmoothlywhilesharpcornersgeta
newtextureorigin. Thisswitchisonlyavailable
when the Wrap Textures switch is turned on.
Default=off.
Chann e l —Specifies t he map channel (page 3–966).
Default=1.
Material Modifier
Select an object. > Modify panel > Modifier List >
Object-Space Modifiers > Material
Select an object. > Modifiers menu > Su rface > Material
Selec t an object. > Modifie r s tab > Material Modifie r
The Material modifier allows you to animate, or
simply change, the assignment of material IDs
(page 3–969) on an object. If the material ID is
animated, the change to a new material ID is
abrupt, from one frame to the next.