2017

Table Of Contents
2 Starting at the first frame sampled, examine your results frame by frame (either forward or backward
through the clip).
3 When you come to an unsatisfactory result, select the pickers you want to re-sample and select Active.
4 Adjust the picker position and size until you get a good result.
5 Go to the next frame and select Passive from the Sample box.
6 Continue verifying frames until you come to one that needs to be adjusted.
7 Repeat steps 3-5.
8 Repeat for the remainder of the clip.
Interpolation button Displays the interpolation between keyframes that have Active selected as the Sampling
option.
Linear (enabled): Picker values are interpolated between keyframes with active sampling. The picker
values for each frame are computed based on the values of the previous and next active sampling keyframes
and the proximity of the frame to those keyframes.
Constant (disabled): Picker values are fixed between keyframes with active sampling. This means that
the picker values at the first active sampling keyframe will be used for all subsequent frames up until the
sampling is active again.
774 | Chapter 18 Masking and Rotoscoping