LTX 2.3 V2.5 UPDATE
I have trained with a bit more variety, to get a more stable effect.
Hope you like it, let me know in the comments :)
Also check my updated base workflow with the new Ltx 2.3 1.1 distill lora
https://civarchive.com/models/1598638?modelVersionId=2864162
LTX 2.3 UPDATE
Yes made my first attempt on training a LTX lora. It clearly adds some nice bounce, but im not sure if its there yet. Let me know in the comments
In doubt use my base workflow:
https://civarchive.com/models/1598638?modelVersionId=2831320
WAN
This lora is for animating bouncing breasts with Wan. Since I felt there was a lack of it here ;)
Used I2V-14B-720P as base.
Since ppl were asking about my training worklfow:
I have used 7 videos with about 4 second length, with faces cut off. I have described what happens e.g.
A girl with blonde extensions is standing in a hotel room, she wears black lingerie, her breasts are bouncing shaking or wobbeling up and down, her hands stand still, her face is cut off
Then I used Musubi-Tuner with default parameters and trained about 32 epochs, with my 4090 it was done in about 35 min.
That's all :)
Description
This is the first Ltx 2.3 version. I think there might be room for improvement.
FAQ
Comments (27)
Given how awful LTX is for physics compared to Wan, I'm very impressed by what you were able to train here.
Nicely done. The LTX 2.3 version works great in WanGP. I used the lora with the distilled LTX 2.3. My songs were nowhere near as good as yours, though.
Well to bad it doesnt work at all in ltx 2.3. using an img2vid workflow, the starting image remains static, suddenly a girl that has nothing to do with the girl in the image pops up from beneath the scene, starts jumping around.. her breasts are bouncing. and at the end of the clip she runs out of view, lol. like a party crasher.. the endframe is still the same as the start frame. I was expecting that my girl would start bouncing.. lol. Ah yes.. almost forgot. i went down to 0.30 with the lora, only difference, the girl popping up was now wearing the bra of the girl in the starting frame.
AND other thing that might help you when optimizing, as LTX is mainly trained on landscape i render in landscape mode. result.. the girl popping up is only visible from her neck down to her knees. hope that helps for future training. in wan the loras work great.
It actually works, most of the time maybe try my workflow: did all the examples with it
https://civitai.com/models/1598638?modelVersionId=2831320
EDIT: well i dont know what happened.. actually after rebooting the pc it suddenly started working. and it works nicely. thank you !!!
Actually i found what makes it work or not: First Frame workflow ... works great !!
First AND Last frame workflow that is when it doesnt work. but that is not a problem. as for stitching i can take the real last frame and generate the next one.
the effect works really great but there's a very noticeable color change that messes with the image, it can even be noticed in one of your vids with a ton of girls on it, the color shift is pretty obvious, great effort can't wait for an improved version.
wasn't sure if its really my lora, because i had this several times before with ltx, anyways placed a color correction node, and i will have a look on the training data to hopefully eliminate that shift for future versions
@ai_build_art Feel pretty confident this isn't your LoRA, I get color shift allllll the time with i2v. It seems to be something introduced in 2.3 and appears to actively push the palette into a more muted range. There me be some strategy to discourage this, but I haven't found it yet.
@boobkake22 i disabled the lora and the color shift stopped, so in my case i think it's related, and the bigger the strength the more noticeable the color shift.
@ai_build_art thanks, i didn't know there was a color correction node for LTX 2.3, i'll check that out too, i really want to keep using this lora, the effect is great indeed.
@skyrimer3d check my reference workflow it has a good color correction already in place
@ai_build_art i'll give it a look thanks!
@skyrimer3d There is some voodoo at play that I don't understand, because I get the same behavior with no LoRA's - but not always. Frequently enough to be annoying.
@ai_build_art I'm checking the lora with the latest faborohacks ltx 2.3 workflow, and here i can't barely notice the color shift even at 1 strength, so maybe it was related to my old workflow, sorry for that. What i'm noticing now here though is that the face changes a lot and have to lower the strength to .5 that still gives good movement, so it looks like workflow config really affects the output, i have to check yours but i'm really searching for a wf that uses the sequencer nodes which is not the case with yours.
there is a huge color shift when using this lora. hopefully OP can fix
@AIforALL Only solution I've found for this is to cut the beginning off. This can happen without the LoRA too, so I wouldn't hope too hard.
New version available did not see too much color shift in my tests. Check it out
@ai_build_art Out of curiosity, did you take any specific action that end or did the effect just diminish?
i can confirm that new version works much better, good effect and less color shift (haven't actually noticed any) and face shift (previous version had a tendency to change faces and make them more plastic with high strength).
@boobkake22 nothing too special. Just described the backgrounds of the training scenes a bit more in detail. Added better variety in general.Updated the training scripts ... but no idea if that's why its better 😄
Is there a T2V and Butt version as well? They removed the physics in version 2.3🫤
I'm running a few T2V prompts now. Seems to work pretty well.
@pennuendo Nice. So now we need butt physics for t2v 🫡
pretty good.. but is there any way so woman doesnt bounce , just the boobs. but still a fine lora.
There is some training meteriel where the boobs are just bouncing because they are sitting in a fast moving car in the new version 2.5. So try it out. For me this case was not really relevant because i wanted to have it realistic