Graphics Programs Reference
Set the Transparency type to Stained Glass on the Infobar.
Click the far right transparency control point to select it.
On the Infobar, drag the Transparency slider to about 80%.
Click the left control point and then set the slider to
100%, complete transparency.
Double-click three-quarters to the right on the
transparency control line to create a new transparency
intermediate value, sometimes called a stop or a pin on
gradients. The default value of transparency is weighted
between the left and right existing points, and not what
you need, however. You'll create a bounce lighting effect
to emphasize the curvature of the can, suggesting a little
light at the right of the can, more light at the left, and
then lighting falloff toward the right. Set the value by
dragging the slider to about 60%.
Repeat step 9, double-clicking a new point to the left of
the point you created in step 9 and using the same 60%
value. What you've done is make a wide, consistent area
of shading, tapering to transparency at left and right, as
shown in Figure 13-5.
Double-click line to add
a new transparency value
F IGURE 13-5 Create intricate
shading by building a linear
transparency with multiple values.