Masks
A mask is a technique in which a pattern is combined with the key source to block out unwanted portions of the key source.
Three types of masks are available, box masks, pattern masks, and utility bus masks. All key types can be masked.
- Box Mask — uses a simple box shape to mask out a portion of the key.
- Pattern Mask — uses a pattern from the pattern generator to mask out a portion of the key.
- Utility Bus Mask — uses a video source selected on utility bus one to mask out a portion of the key.
Keep the following in mind:
Keep the following in mind when working with a mask:
- A mask can be applied to any type of key.
- A mask applied to a flying preset pattern key is performed downstream (post) of the DVE. This allows you to adjust the DVE key without affecting the mask.
- A mask applied to a flying chroma key, self key, or auto select key is performed upstream (pre) of the DVE. This means that adjusting the DVE key also adjusts the mask.
- A mask applied to a flying key that is using the floating DVE is always performed downstream of the DVE.