pappyjay wrote:Re optical flow technique, how is that achieved please?
In the Edit Page you can generate single replacement frame between two otherwise
sequential frames using the
Frame Replacer OFX (Studio Version Only)
From the manual, Chapter 159 Resolve FX Revival:
The Frame Replacer allows you to reuse or blend adjacent frames together to help remove any corrupt frames or artifacts that show up for the duration of just a single frame.
— Replace This Frame: Checking this box selects the specific frame in the clip that you want to replace. This will also automatically apply a keyframe at the appropriate location in the clip.
— Replacement Method: Allows you to choose the method by which the new frame is created.
— From Previous: Replaces the selected frame with the one immediately before it, effectively
duplicating the frame.
— From Next: Replaces the selected frame with the one immediately after it, effectively duplicating the frame.
— Blend Prev/Next: Replaces the selected frame with a blend of the frames immediately before and after it.
—
Optical Flow: Replaces the selected frame using DaVinci Resolve’s optical flow technology with a blend of the frames before and after it.
For more complex work, like generating multiple sequential frames you'll need to spend some quality time using the Fusion Page's
Tween option: 'Tween' interpolates between two
non-sequential images to generate a new frame using an Interpolation Parameter to determine, relative to the two source frames, which (missing) frame it is that you are interpolating. An Interpolation parameter value of 0.0 will result in input frame A, a value of 1.0 will result in frame B, and a value of 0.5 will yield a result halfway between A and B.