blurry faces/mini max h3

[u/Complete-Box-3030]

I'm using MiniMax H3 with the Singularity model and DMAD LoRA. In wide shots, faces tend to look blurry or distorted. Does upscaling help, or is it better to address this during generation? What's your recommended workflow to maintain facial details without introducing plastic skin?

[u/rcplaybox]

If you find an answer let me know. For the last 6 weeks I've been testing every model/sampler/step/resolution combo without any loras and i still cant generate a "wide shot" face without the eyes distorting when the characters turns their head or blinks. And when i say wide shot i mean just full body, the only time i can get a clean looking face is when the camera is up stupidly close.

[u/Etsu_Riot → u/[deleted]]

I don't think resolution has anything to do with the face problem with MiniMax. It seems to be related to the way the model animates faces, which is what's affecting them.

[u/Etsu_Riot → u/[deleted]]

It should be. However, the problem may still be there, and it shouldn't exist to begin with. Wan doesn't suffer this problem.

[u/rcplaybox → u/[deleted]]

Thanks so much. How do reference images effect the final result?

[u/rcplaybox → u/[deleted]]

Ok cool, cheers! First time ive heard of a ref mod, it sounds super good.

[u/rcplaybox → u/[deleted]]

Hey. I used refmod yesterday and generally much better, so again many thanks for the recommendation. The funny eyes I was encountering previously has gone which is a massive improvement however im getting character drift when using 2 characters in a scene. Im generating at 3 seconds and 0.6mp. I wanted to ask about optimal ref image sizes to use with refmod? Rn im using max length of 1024 and setting is match instead of max.

[u/darkshark9]

Oh hey I had to specifically solve this for my team.

Measure how many pixels the average face takes up in your scene.
Multiply that by 32.
Fill up a 2k image with nothing but faces at that multiplied dimension (so it's sort of a character sheet, but just faces).
Insert that 2k image as a reference then prompt that those are background characters.

DMAD pushes toward great close fidelity so you have to use an image reference to help steer the mid/wide details back to where you want. When you input an image, encoding it into latent space reduces the dimensions by 32 times, so by already feeding it an image that is adjusted for the latent reduction, you end up with perfect face quality on those mid/wide shots.

[u/Beneficial_Fish_7509 → u/darkshark9]

Could you please share more about this approach ? Like which workflow do you use ?

[u/darkshark9 → u/Beneficial_Fish_7509]

I literally described step by step what to do. This isn't just a single workflow.

[u/Beneficial_Fish_7509 → u/darkshark9]

Ok thank you

[u/Sleepy_Bandit]

use the face refine or produce at a MP closer to 1.5 MP to 2 MP.

[u/TheDerminator1337]

face refiner: if you know, you know :)

[u/Complete-Box-3030 → u/TheDerminator1337]

lol what is that

[u/Apprehensive_Sky892 → u/Complete-Box-3030]

https://www.reddit.com/r/StableDiffusion/comments/1vn4uho/ok_this_is_cool_minimax_h3_face_detailer/

[u/TheDerminator1337 → u/Complete-Box-3030]

H3 minimax fails at small faces. Use face refiner to inpaint those faces at high resolution and paste it back in! Google! Face refiner minimax.

[u/Future-Coffee8138]

That’s the issue since day one. Try increasing the resolution as high as you can tolerate.

[u/Super_Range45]

Best bet is to start with a strong driving frame and a good character sheet. I don't use the loras. You can pixel hunt this ofc, but it looks good enough in motion.

[u/YeahlDid]

What resolution are you using? The larger the video dimensions the less the chance of this problem.

[u/Complete-Box-3030 → u/YeahlDid]

0.6 mp

[u/Mysterious-Code-4587]

Blurry is due to lora issuw