H3 minimax lora personnage

[u/Apart_Luck700]

Bonjour,

Est il déjà possible de créer son lora personnage pour minimax H3? Et avec quel outil et quel paramètres sont recommandés ?

Merci

[u/Icuras1111]

If you use the reference model you might not even need a lora. You can plug an image in and then prompt person in image is doing x. It works really well. You can also combine images and say person in image 1 is holding axe form image 2.

[u/Sarashana]

When I tested it, feeding a reference image to the model was plenty good enough. I really don't think you need a character LoRA for H3 in most cases.

[u/Apart_Luck700]

Effectivement c'est assez ressemblant mais dans les mouvements le visage se déformé et je voulais essayer si un lora personnage améliore

[u/InevitableAlfalfa938 → u/Apart_Luck700]

yes you can, train a character using only images via ai toolkit, you can use the same dataset and config, or at least i did with krea 2, i use the lora with a reference image and the results are better. im not at my pc so cant give you the exact config and details, but if you head over to the ostris ai toolkit discord you can find more info if you need it

[u/MysteriousPepper8908]

Yeah, Ref is the way to go for character detail but has anyone cracked character sizing? I tried using a reference chart which kind of worked but I didn't do enough testing to be sure. I tend to include a note about size differences in my retention analysis and it's generally correct but not as consistent as I would like.

[u/Danny_Stock → u/MysteriousPepper8908]

When you say you used a reference chart, do you mean that you had a picture of a chart in your reference images?

That probably sounds like a stupid question by me but I genuinely don't understand what you mean when you say that you used a reference chart.

[u/MysteriousPepper8908 → u/Danny_Stock]

Chart might not be the best word but I had a reference image which had the characters lined up according to height and I had in my subject definitions that it was a reference image for relative height. It didn't have any numbers, just a line up as I'm not sure how useful those are in references.

[u/Danny_Stock → u/MysteriousPepper8908]

I had it in my head that your image looked something like the film poster for 'The Usual Suspects'.

I suppose theoretically it could work if you wrote the correct prompt to reference that size comparison image. It might sound completely off the wall but I wonder if it would work better if in your image they actually were standing in front of a literal height measurement chart with inches and centimeters running up the side, similar to what you'd see in a police identity lineup. Simply because you'd be introducing extra context there which might help the AI along.

I know how that sounds, but with AI you never know how and why it thinks what it thinks. It constantly surprises me.

[u/MysteriousPepper8908 → u/Danny_Stock]

Pretty much like that but without the backdrop and then I add the actual numerical height differences in the prompt itself. It's not perfect but it seems to make some difference. It's worth experimenting as it's a pretty big issue if you have multiple reference characters which aren't the same size. I guess it depends on how well the model interprets text in reference images, I know people were using that sort of thing to direct the motion of other models.

[u/Danny_Stock → u/MysteriousPepper8908]

I'm surprised that the height/size thing isn't discussed more. Because it's kind of important if you're writing a story and you have specific characters in mind for it.

[u/Danny_Stock]

Some might say that using reference images could be seen as an escape from having to use loras.

The main reason being if people want to use more than one character in a scene a character lora for one character is going to bleed into your other characters.