There should be a scriptable custom Blending mode where you could define the Blending yourselfes.
I would like to see this basically within the effect list (input & output) but everything else like buffers would be appreciated.
How should it work?
The layout & functions of the DM / SSC should do it, we only need 6 new vars:
This way you can get the color values of the source frame as well as frame you want it to blend to, in coaxial or radial coordinates, as you like.
What can we do with it? Something like UnConeDs Channelshifter APE would be quite easy and as we can add loads of code hyperweird color effects would be possible, even better ones as within an dyn color movement.