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# Garbage Mask

Use the Garbage Mask to isolate particular areas of an image to include with, or exclude from, the opaque area of the matte.

To access the Garbage Mask menu, use:

- Timeline, then use ConnectFX.
- Modular Keyer, then select a node from the Node bin.

This node accepts a front and a matte clip as input, and outputs a result.

The Garbage Mask menu includes the Tracer and the region of Interest (ROI) functions, which can also be found in the Modular Keyer. The node processes gaps in clips set to No Media as black frames. An unconnected front clip will return an error, while and unconnected back clip will process black frames. You can save and load GMask setups directly in ConnectFX.

#### Topics in this section

- Garbage Mask Menu Settings