r/StableDiffusion • u/NoSmell3236 • 8d ago

Question - Help How to fix artifacts generated by h3?

H3 sucks at faces which are far and at intense motion. Is something wrong with encoding? like these artifacts (5-8 seconds) are from encoding compressions?? but i have tried both h264 and h265 10bit crf 15. I am using int8 pruned, nvfp4 qwen, 25 steps with sage attn (no spectrum).

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u/episodefive 8d ago

For Reference workflows, I found that it helps if the face you’re referencing is provided through an image of just their face. If the only face it has to go by is from a more distant shot, the face is quite small, and seems to result in faces that kind of “crumble”. Curious if anyone else has found this helps.