Apple Shake 4 Tutorials - Manual (Page 195)

Chapter 6 Using Primatte 195
2 In the Viewer, drag along the purplish edge of the woman’s hair.
3 You may need to apply two or three spill sponge operators. The spill sponge operator
applies a precalculated amount of spill suppression, and replaces the blue color with an
alternative color.
For the spill on the shirt, you could use additional spill sponge operators. But, for this
example, use the fine tuning operator instead.
The fine tuning operator combines the functions of the spill sponge, restore detail, and
make fg trans operators. The restore detail operator brings back fine details such as
individual hair strands. The make fg trans operator pushes foreground material into the
slightly transparent zone. The fine tuning operator is much easier to use than the spill
sponge, restore detail, and make fg trans operators, because it has sliders to precisely
tune the combination of the three effects.
To use the fine tuning operator:
1 In the Primatte1 Parameters tab, click the fine tuning operator.