User Manual

5 Alternately, if there are parts of the image that are included in the key that you want to
omit, hold the Option key down and draw a line over these areas. When you turn the
Highlight button off, you can see that Option-drawn lines are red, and these subtract
areas from the key you’re creating. Again, try not to overdo drawing subtractive red
lines, as you can end up with an overly hard-edged key that’s difficult to adjust using
other controls in the next few steps.
Blue lines add to the key and a red line subtracts the grass
from the key, as seen with the highlight turned off
6 If you find yourself wondering whether a particular sample in the list at left is doing
any good, you can click the color patch at the left of any entry in the list to toggle that
sample off and on. If you decide you don’t need a particular sample, click the trash can
button at the right to delete it.
Controls for toggling samples off and on, and deleting them from the list
7 When you’re satisfied that the key is good enough to start fine-tuning, stop drawing
lines. It’s all right if there’s a bit of noise, speckling, or if there are small holes in the key
you’re creating, because you can take care of these using the Matte Finesse controls.
A sampled key that’s ready for further refinement
Chapter – 119 Secondary Qualifiers 2700