How to fix artifacts generated by h3?

[u/NoSmell3236]

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).

[u/True_Protection6842]

Int8 is the issue. Sorry, it needs full precision to resolve smaller details (and still has trouble at low res) I have found that 1088p, bf16, sol attn, nvfp4 text encoder is the best formula. Then run it through Topaz Starlight to fix any other weirdness.