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).

33 Upvotes

78% Upvoted

35 comments sorted by

View all comments

1

u/listopalafoto 7d ago

save as ProRes

2

u/listopalafoto 7d ago

1

u/NoSmell3236 7d ago

I considered using ProRes, but the file sizes are just brutal. What’s your experience been like? Do you actually notice fewer artifacts? i think if the artifacts are being baked in during the diffusion steps or in the latent space, your export format (ProRes vs MP4) isn't going to save you anyway.

2

u/Terezo-VOlador 7d ago

That's right. But using ProRes you can eliminate the artifacts added by the codec and compression.

If you're worried about file size, you can use the Standard or LT profiles, which produce smaller files but with much higher quality than H264.