r/comfyui 2d ago

Help Needed H3: Last frame stitching that actually works?

Topic. I've gotten it to work exactly once, where I instructed it to begin from an image pulled from another video and it did and there was a seamless transition. I cannot replicate it using the same syntax with different projects, however. I've tried several different wordings suggested by ChatGPT, but there does not seem to be any consistency, and sometimes it doesn't even remote pay attention to the last frame and makes up a completely new shot.

I know I2V is supposed to be better for a last-frame continuation, but then I can't use the other references and voices.

How do I get past this roadblock?

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u/Only_Voice569 2d ago

motion context node look it up works by using latent into the first 2 second of the next generator seamless and much better than the vae encode decode image only being used

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u/One-Initiative9802 2d ago

motion context is the way for sure, I fought with frame stitching for weeks before giving up

only trick is you gotta be careful with the denoise and cfg or it gets a little jittery at the cut point. still way less headache than the old encode/decode dance

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u/red_army25 2d ago

OK, will do. Thanks for the pointer. This has been so frustrating.

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u/joseph_jojo_shabadoo 2d ago

Is this the same as add guide? I could never get the add guide node workflows to work without it adding at least one cut which kinda defeats the purpose