Add SA-Solver Sampler #4454
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Add SA-Solver Sampler #4454
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I would convert this to a simplified version. |
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Extract sample functions and simplified the process, which makes it fit into k_diffusion. Instead of passing percent to sample function, SamplerSASolver node requires a model now to compute interval of tau function. Landscape example: Anime-style example: |
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Add stochastic sampler, SA-Solver. SA-Solver could be considered as a stochastic version UniPC with same order. When set eta = 0 constantly, its result is similar to UniPC (bh1).
The default tau function is adapted from official's repos and uses sigma percent to define interval.
Example (with --fp8_e5m2-unet):
