Frame interpolation is a video processing
technique that inserts additional frames into your footage to make it look much smoother.
Here's how you can do it within Comfy UI. First, you're going to want to go to your manager
and then install custom nodes. Then, search the term "interpolation".
Next, install this Comfy UI frame interpolation custom node. Once that's
installed, we can add it to our workflow. Just to give you a brief, high-level
summary: I have two-second video footage that's a total of 60 frames of myself waving.
This passes through a couple of control nets, along with textual prompts and "Animate
Dip", to create this short form video. Now, while this video looks good, frame
interpolation will make it look even better. To do this, it's fairly straightforward. Go
to "Add Node", "Comfy UI Frame Interpolation", "VFI", and then select "Film VFI".
Next, connect this to the frames and also bring in the video combine custom node
to stitch all the images together. After that, connect this here. Since we're going to use
a multiplier of two, which will basically double the number of frames, go ahead and
increase the frames per second to 60. Also, create a preview node for review and set this to
H264 for better quality. Then, cue the prompt. After 40 seconds, it created a total of 119
frames. There is some math that drops that last extra frame, but it's roughly about
60 frames per second. Here's our animation side by side. As you can see, it's a little
smoother compared to our original 30 frames per second output. It is a very quick and
easy way to really smooth out animations. Now, I want to touch on the other frame
interpolation methods available within this custom node, as well as some of the additional options.
As you can see, there are quite a few that you can test against. I recommend testing this for all
sorts of different animations. However, I found that the results weren't really all that different
to the original film VFI that I had done earlier. Lastly, I want to mention the GMFSS Fortuna VFI,
which is specifically designed for hand-drawn cartoons or anime animations. If that's
the type of artwork that you're creating with a Comfy UI workflow, you might want
to use that interpolation method instead. That's all for adding frame interpolation
to your workflow. If you have any questions, please leave them in the comment section below.
This entire workflow is available to download, so you can play with it and incorporate
it into your personal workflow. Thanks so much for watching. Consider hitting the thumbs up button and subscribing. I'll
see you in the next video. Take care.
