What's the difference between the HighNoise and LowNoise versions?

#2
by Phaserblast - opened

Thanks for posting these. Would you mind explaining the difference between these two noise variants?

QuantStack org

Well… from what I have readed. I understand that the workflow is divided into two ksampler:

  • High noise would be for the 1st KSampler.
  • Low noise would be for the 2nd KSampler.

You can run the first one and generate video, but the models do the following:

  • The high-noise focuses on generating overall layout and motion.
  • The low-noise refines textures and details.

Here you can see workflow and examples to use it on ComfyUI
https://docs.comfy.org/tutorials/video/wan/wan2_2

Are these choices a result of the quantization? In other words, more bits allocated to the exponent means more precision to the layout and motion whereas more mantissa means finer details (or vice-versa)?
Edit:
I see, both models are needed. The two samplers are connected in series.

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