I found a 1 year old YouTube video of a workflow with a custom node pack the guy created to help build longer videos. I tried it, after working out how to install the node pack, and it basically works, but it takes the last frame of a generated video and uses it as the first frame of the next. You know the drill. That comes with the same old obvious pitfall. If the last frame is bad quality or skewed or distorted in any way, THAT is your starting image for the next generation. This workflow takes some older ideas and in my opinion isn't all that efficient in what it does, but it works. I'm also not 100% convinced the custom nodes are necessary for what the outcome is. But, hey, the guy made the thing and put it out there, so good for him and everyone that is getting use out it! The video is dubbed in English, has Spanish original audio and all the comments are in Spanish, so use the Google Translate links on them.
Learning how to use it, though, gave me an idea. There is likely already a custom node or suite that does what I'm thinking of testing today, but with the vastness of the internet I've not come across it in my searches. I've tried the idea of taking the last frame and using it as the first of the next, both manually and using stock nodes to accomplish it. What I'm trying is 100% manual upfront, at least, and hopefully the rest will work by itself. On my rig and the nature of First Frame Last Frame Wan nodes it will not be fast at all. In fact I expect it will take at least twice as long for each 5 second clip. But I'm hoping the output will be worth it.
Basic Concept
I will generate a 5 second (or longer, I suppose) video of something. Add a Save Image node near the Video Combine node to save out all the frames to a folder. With any video, the output frames will vary in quality due to the motion of the overall video, but there WILL BE frames among them that look better then adjacent ones. For every motion your character does in your video, be that walking, dancing, sex acts, whatever (I'm all for the latter) there will be the very first frame of an action and the last frame of an action. Those
should be the most clear and best quality of the bunch, I'm thinking. I will try to find a number of such frames among 161 frames at the end of an interpolated video generation. Those are the frames I will then use in a recursive First Frame, Last Frame workflow. Sounds right in my head, so I'll give that a shot.
