No Pro also adds support for layering (there is when Pro is available 3 plug-ins).
RE: Splitting in two – with a matte on one and the reverse matte on the other and merging back
The way I understand your shot is there is a part in front that does not move, for that part you could isolate it with a matte – (assuming it does not move). The issue comes from the fast background motion that gets contaminated by the foreground not moving. This splitting would not help the background.
Conclusion:
Let me document this publically here so when discussing with Resolve engineer there is a clear example of this and let’s call this the Dashcam issue – the camera is inside the car moving fast, the foreground as a result does not move or little and the street moves real fast.
1) With support for an additional matte channel (single channel) we could use this to do the Motion Blur segmentation – internally by having that information we can prevent the static foreground from affecting the background motion. That alpha channel must not have any impact on compositing within Resolve, it’s just to guide this filter.
2) To keep the same example having option for a full second input RGBA image would allow for example to composite something in the car (for example showing speed in burmese system – kawtha per hour? for the version for that market ). Using the original image sequence as Motion Source allows the composited image to get matching realistic motion blur when the car hit bumps on the road etc.
To do both at once would require 3 inputs, but that’s rare you need that and might be too hard for Resolve right now so let’s ignore such special case, plus they have another product, Fusion, which at some point becomes a better place for things like that.
Pierre