Blackmagicdesign ATEM mini Installation And Operation Manual page 120

Pattern Key Settings
To set up a pattern key on the upstream keyer in ATEM Mini Extreme:
1 Select the K1PTN button in the select bus.
2 Select the fill source from the select bus.
You can now adjust your pattern settings including selecting the key pattern using ATEM
Software Control.
To set up a pattern key on the upstream keyer in ATEM Software Control:
1 Expand the upstream key palette and select pattern from the key types bar.
2 Select the fill source.
3 Select the key pattern.
4 Adjust the key parameters to refine the key. For a description of pattern key
parameters, refer to the table below.
Pattern key parameters:
Invert Pattern
Size
This button inverts which the region is filled with the fill source.
For example, fill a region outside of a circle by positioning the circle wipe as
desired and then setting invert pattern to 'on'.
Increases and decreases the size of the selected pattern.
Keying using ATEM Mini 120