Invert a key when it is easier to exclude rather than include colours in a secondary.
Note: The following steps apply to both the HLS and the Diamond Keyers.
To invert a key:
- In the Secondaries menu, toggle the Matte/Key-in option box to display the Key Invert panel, and then enable Invert.
The area of the key that was opaque becomes transparent and the area that was transparent becomes opaque.
Before
After
Images courtesy of Hungarian Academy of Film & Theatre, 3rd year