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# GMask Node

The GMask node accesses the Garbage Mask menu and includes the Tracer and Region of Interest (ROI) functions, which are also found in the Modular Keyer. The GMask node accepts a front and a matte clip as input.

GMask node tabs process gaps in clips set to No Media as black frames. An unconnected front clip will return an error, while an unconnected back clip will process black frames.

You can save and load GMask setups directly in Batch. See Loading Garbage Mask Setups and Saving Garbage Mask Setups.