8

916 Chapter 8: Modifiers
UV W M apping Add M odifier
Select an object. > Modify panel > Modifier List > UVW
Mapping Add
Select an object. > Channel Info (page 2–1549) >Adda
channel.
The UVW Mapping Add modifier is added to an
object’s modifier stack when you add a channel
in the
Channel Info utility (page 2–1549) .You
can also add the modifier explicitly by choosing it
from the Modifier List. It has no us er interface.
To merge the results of the add operation into the
object’s geometry, collapse the modifier stack after
adding.
UV W M apping Clear M odifier
Select an object. > Modify panel > Modifier List > UVW
Mapping Clear
Select an object. > Channel Info (page 2–1549) >Cleara
channel.
The UVW Mapping Clear modifier is added to an
object’s modifier stack when you clear a channel
w ith the
Channel Info utilit y (page 2–1549) .You
can also add the modifier explicitly by choosing it
from the Modifier List.
To merge the results of the deletion into the
object’s geometry, collapse the modifier stack after
deleting.
Inter face
Ma p Cha nnel—Specifies the map channel to clear.
This is equivalent to clearing a specific channel
in the Channel Info utility. If the specified map
channel doesn’t exist, the mod ifier has no effect.
UV W M apping Pa ste M odif ier
Select an object. > Channel Info (page 2–1549) >Copy
and then paste a channel.
The UVW Mapping Paste modifier is added to an
object’s modifier stack when you paste a channel
in the
Channel Info utilit y (page 2–1549) .Itisn’t
available from the modifier list, and has no user
interface.
To merge the results of the paste operation (for
example, a vertex selection) into the object’s
geometry, collapse the modifier stack after pasting.
UV W XFor m M odifi er
Modify panel > Make a selection. > Modifier List >
Object-Space M odifiers > UVW XForm
Select an object. > Modifiers menu > UV Coordinates >
UVW XForm
Use the UVW XForm modifier to adjust tiling
and offset in existi ng
UVW coordinates (page
3–1122)
.Ifyouhaveanobjectwithcomplex
UVW coordinates a lready applied (such as a Loft
object, or a parametric object with generated
coordinates), you can apply this modifier to adjust
those coordinates fu rther.
For example, if you create a torus and turn
on Generate Mapping C oordinates, the UVW
coordinates work perfectly with the torus, but
ifyouwanttotileormovethecoordinates,you
would previously have needed to do it at the
material/map level. No w you can apply a UVW
XForm mod ifier to alter the built-in coordinates.
You can use a Mesh Select or Edit Mesh modifier
toapplyaUVWAdjusttosub-objectselections,
as well. T his is handy if you want to rotate t he
mapping on a particular portion of an object.