For example, a linear vector gradient blends colors along a straight
axis. A directional vector mask fades from opaque to transparent
along a linear axis. For linear vector gradients and directional vector
masks, you can specify the length and angle of the axis.
The relationship between vector gradients and vector transparency
masks can be seen if you detach a vector transparency mask. With a
masked object selected, choose Object > SpriteLayers > Detach
Mask. Canvas removes the vector mask and places it in the document
as a separate vector object. If you examine this object, you see that it
has a vector gradient. The gradient style is similar to the vector mask
style. The vector gradient fades from black to white in the same way
that the vector mask caused the masked object to fade from transpar-
ent to opaque.
The relationship between vector masks and vector gradients also
works in reverse: You use a vector gradient-filled object as a vector
mask; see Masking with a vector object on page 20.371.
Applying vector masks
You can apply a vector mask using the Vector Transparency tools.
When an object is selected, you can drag one of these tools near or
over the object to apply a transparency effect.
The Vector Transparency tools provide the easiest way to create
transparency effects such as vignettes (image that appear in ovals and
other shapes) as well as linear, radial, or rectangular fades.
A vector mask is related to
a vector gradient
If you detach a vector
mask, you get an object
with a gradient. The grays
in the gradient correspond
to transparency levels in a
masked object.
Masked object
Detached mask
Original object