2017

Table Of Contents
Try the Clean algorithm by clicking the box labelled Clean. You may want to try several
different percentages to find the optimal level of cleaning that doesn't effect your edges
Solution 1
(the default percentage is 70%). The Clean algorithm works only with the Tracer and
pickers on. If you have advanced gradient segments, they will be unaffected. The Clean
command works on all vertices with pickers, whether or not they are selected. The area
affected by the Clean command is the same area that the pickers affect (see Applying
Softness Using Pickers (page 767)).
Use the inner border to isolate the problem areas.Solution 2
Add a second garbage mask.Solution 3
I'm repositioning and rescaling the pickers and the matte goes from having too much
softness (overly transparent) to having too little (overly opaque). What can I do?
Problem
The sampled colour range is either too broad or too narrow.Possible Cause
Locate the areas that have a tendency to become too softened and the picker that is 're-
sponsible' for this by moving the pickers until the matte results change for the worse. Include
Solution
a larger portion of these softer areas in a picker box. By sampling a fuller range of
chroma/luma in this area, a more uniform, averaged effect is created.
Using Region of Interest and the Tracer
Certain garbage mask features are supported only in GMask Timeline FX, and the GMask node in ConnectFX
and the Modular Keyer.
In GMask Timeline FX, and the GMask node in ConnectFX and the Modular Keyer, you can use a parameter
called Region of Interest (ROI) when drawing multiple garbage masks on a clip to remove the portion of the
matte that falls outside of each mask while respecting the area defined by all masks.
ROI enables you to reveal multiple parts of the matte.
Image courtesy of The Post Group
776 | Chapter 18 Masking and Rotoscoping