Reroute

The Reroute plugin¹⁴ enables you to selectively transfer the Alpha channel or the Components (RGB or YUV) or both from a source track to a target track, partially overwriting the target's contents.

Target Track:

you can choose between Top and Bottom.

Operation:

you can choose between Replace Target, Components Only and Alpha Replace.

• replace Target (component + alpha channels), this allows you to have the ability to overwrite everything on the target track with the source track where the the plugins are inserted.
• Components only (color channels only), replace the RGB or YUV components of the target track by the RGB or YUV components of the source track. The Alpha of the target track does not change.
• Alpha replace (alpha channel only), only the Alpha of the target track is changed but the components are not. This makes it easy to create an alphs channel on a track and then use that to apply it easily to another track.

It works as a shared plugin. The typical usage scenario is to build up a possibly animated Mask in one track and then to transfer the Alpha channel to another target track.

Footnotes

... plugin¹⁴

By Hermann Vosseler