last frame keep changing from the original inputted last frame

#73
by Tyfani890 - opened

plz tell me how to fix this, my last frame always not accurate from the inputed frame

yeah same I had a someone holding a bottle of water for the last frame input and the words on the bottle were significantly different than the last frame that I input and I had a custom input audio and it would not lipsync not matter what I prompted

i think the problem is on upscale part i got the video i wanted by skipping the upscale part

What workflow?

What workflow?

I was using the FL2V Custom audio workflow and having trouble with the last frame having different fine details from the input last frame, but I never tested further to see if it was actually the spatial upscaler was causing it like Tyfani890 said.

2-pass (2 samplers) will generate more potential differences than 1-pass. So potentially the upscale part can create slight differences from input frame to output.
Its also a strength setting per input frame, you can try set it to 1.0 if its not already.

And I'll check that particular workflow. LTX has 2 ways of using reference frames... Either by a guider or an in-place* ... the guider, is as the name suggest a guide. And the model has freedom to not be a "slave" to the frame inputs (this usually gives a more natural looking video). The in-place is more strict frame injection, that can lead to more accurate re-representation of the input frames, but the video can end up looking a bit jerky or not as smooth, all depending .. .

Also the latent upscaler model had a last frame bug, so make sure you use the latent upscaler model v1.1

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