Motion Blur for Animated Masks (like transform motion blurs)
I'd like to have the ability to have motion blur on animated paths, similar to transform motion blurs, to animated paths. It would be a feathered edge.
This is for roto of objects. Currently, we have to roto and then apply RSMB to help with the matte's matching of the motion blur within the underlying footage.
Spencer Tweed commented
This has been in AE for at least 10 years. Just turn on the layer motion blur and masks should be motion blurred as well. You can manually turn it on by clicking "Layer" in the menu bar "Mask > Motion Blur"
Chris Brearley commented
It has done this already for years. Turn on motion blur on the layer and for the comp.