Umamusume: Pretty Derby (Steam)

[Numbers66]

13 minutes ago, Muffination said:

Thought it may be a good idea to share, so here's a rough summary of things regarding Costumes that I found out while making the Swimsuit Mod:

[1]: The G2/G3 Race gear starts to T-Pose when you replace the BodyShape, and starting a Race crashes the Game
[2]: The School Uniform is used by Loading screen chibis, so you can't get past "Starting Game" if changing that
[3]: Summer Tracksuit uses Gender and Seasonal, so that must be set to 0 to be changed.
[4]: Swimsuit is what I use for the Mod, and works without restrictions
[5]: Winter Uniform is same as [2] but for Winter months
[6]: Winter Tracksuit is same as [3], but additionally used as Chibi for "Select Strategy" aka Racing Style (so that gets Stuck, but hey, you can play Story with it).
[7]: Backup dancer costume has 4 different variants, but setting 'body_setting=0 seems to disable that, so the Swimsuit mod uses that to allow Custom Concerts
[8/11/12]: Replacing G1 Race Gear for NPCs works perfectly fine
[9]: HotSprings Towel is same as [4]
[101]: 2-star Uniform for Trainees works fine as long as you avoid the Chibis in Club or Champion Race, and only use a 2-Star Trainee for Career (cause of Goal Race Chibi).
[100000]: 3-star Uniforms for Trainees have the same restrictions as 2-star Gear, just that you need to use a 3-star Trainee for Career
[200000]: Special Horses like Meek have no restrictions
[900000]: Human NPCs work without any issue (since they use no Chibis) *EXCEPT* Tazuna -- She seems to have a unique mesh that is not replaceable without getting stuck on load
[901000]: Casual Costumes have no restrictions

Additionally
- you can change the respective 2-star & 3-star Costume of any given Trainee with "card_rarity_data.get_dress_id_1 / 2", subject to the same restrictions as above
- If you also enable "use_home" for the target costume, you can have it show up on the Home_screen (but only when choosing Random, else the Server refuses it)

To explain the main reason why and what about Chibis:
- The game loads a chibi matching the costume of the selected trainee
- Since everything is set to [Swimsuit], it searches for a Chibi with Costume Id 4
- As that does not exist, the Game Log produces a neat error message saying that it cannot compute, and stops working

So if anyone knows of a way to tell the game to load the School Uniform Chibi regardless, then we would have kind of a Holy Grail, as everything could be reduced to a single model per Body Size (resp. one singular if you are an unfaithful Heretic)

so the only way to avoid the Chibi crashes is to try find a way to force them to use another custome, that also means you cant mod everything... unless there is is something thats used that isn't used as much?

[Muffination]

The issue is, that the use of Chibis seems to be hardcoded -- as in, the Loading screen always uses the Chibi with Dress ID 2.
For whatever reason it still uses the BodyMesh Id of said costume to fetch the actual Chibi, so if you change that, so does the Chibi.

So it would work out if we, for example, use School Uniform for everything, but that ofc isn't as easily to modify as the Swimsuit which just needs a Texture swap.

Edited September 16, 2025 by Muffination

[Numbers66]

1 hour ago, Muffination said:

The issue is, that the use of Chibis seems to be hardcoded -- as in, the Loading screen always uses the Chibi with Dress ID 2.
For whatever reason it still uses the BodyMesh Id of said costume to fetch the actual Chibi, so if you change that, so does the Chibi.

So it would work out if we, for example, use School Uniform for everything, but that ofc isn't as easily to modify as the Swimsuit which just needs a Texture swap.

could someone just use a tool like 3Danmi (or what ever its called) or make other third party like XXMI that replaces the costume but not the files so it basically shouldn't interfere with the chibi id fetching? or does this technic not work?

then again, seeing how annoying updates are for those tools, dont think anyone wants to try fix hashes for 100 horse girls after every update... unless they dont change but if its possible, highly doubt it stays the same hash after an update...

Edited September 16, 2025 by Numbers66

[goofyahhcats]

4 hours ago, Muffination said:

Thought it may be a good idea to share, so here's a rough summary of things regarding Costumes that I found out while making the Swimsuit Mod:

[1]: The G2/G3 Race gear starts to T-Pose when you replace the BodyShape, and starting a Race crashes the Game
[2]: The School Uniform is used by Loading screen chibis, so you can't get past "Starting Game" if changing that
[3]: Summer Tracksuit uses Gender and Seasonal, so that must be set to 0 to be changed.
[4]: Swimsuit is what I use for the Mod, and works without restrictions
[5]: Winter Uniform is same as [2] but for Winter months
[6]: Winter Tracksuit is same as [3], but additionally used as Chibi for "Select Strategy" aka Racing Style (so that gets Stuck, but hey, you can play Story with it).
[7]: Backup dancer costume has 4 different variants, but setting 'body_setting=0 seems to disable that, so the Swimsuit mod uses that to allow Custom Concerts
[8/11/12]: Replacing G1 Race Gear for NPCs works perfectly fine
[9]: HotSprings Towel is same as [4]
[101]: 2-star Uniform for Trainees works fine as long as you avoid the Chibis in Club or Champion Race, and only use a 3-Star Trainee for Career (cause of Goal Race Chibi).
[100000]: 3-star Uniforms for Trainees have the same restrictions as 2-star Gear, just that you need to use a 2-star Trainee for Career
[200000]: Special Horses like Meek have no restrictions
[900000]: Human NPCs work without any issue (since they use no Chibis) *EXCEPT* Tazuna -- She seems to have a unique mesh that is not replaceable without getting stuck on load
[901000]: Casual Costumes have no restrictions

Additionally
- you can change the respective 2-star & 3-star Costume of any given Trainee with "card_rarity_data.get_dress_id_1 / 2", subject to the same restrictions as above
- If you then also enable "use_home" for the target costume, you can have it show up on the Home_screen (but only when choosing Random, else the Server refuses it)

To explain the main reason why and what about Chibis:
- The game loads a chibi matching the costume of the selected trainee
- Since everything is set to [Swimsuit], it searches for a Chibi with Costume Id 4
- As that does not exist, the Game Log produces a neat error message saying that it cannot compute, and stops working

So if anyone knows of a way to tell the game to load the School Uniform Chibi regardless, then we would have kind of a Holy Grail, as everything could be reduced to a single model per Body Size (resp. one singular if you are an unfaithful Heretic)

change Tazuna bust to 3
because dress can't find combination height, shape, bust

[goofyahhcats]

i changed dress from card_rarity_data
it doesn't not work on race so yeah, dress_data is the real one 

[Muffination]

22 hours ago, Numbers66 said:

could someone just use a tool like 3Danmi (or what ever its called) or make other third party like XXMI that replaces the costume but not the files so it basically shouldn't interfere with the chibi id fetching? or does this technic not work?

then again, seeing how annoying updates are for those tools, dont think anyone wants to try fix hashes for 100 horse girls after every update... unless they dont change but if its possible, highly doubt it stays the same hash after an update...

The IDs haven't changed since the very first Patch even in JP..... so I don't think anything changes right now

[Numbers66]

1 hour ago, Muffination said:

The IDs haven't changed since the very first Patch even in JP..... so I don't think anything changes right now

so someone could make a tool what could do this? or maybe just something what allows you to change costumes between each id or something? 

[Muffination]

We can only change the Model of a Given Costume, either by modding the actual model, or by telling the game to load a different Mesh.

But if you mean the latter, that is already done by two mods
- One is UMPD, which is a small Python script to customize your experience like swapping dresses, change Uma Display Parameter, etc.
- and the other is the is from Me and a Uma-Lewder Friend that replaces Swimsuit Texture and then changes as much as possible into using that costume

------
Btw, we also updated the Mod just now -- Now G2/G3 Costumes are covered as well, and the msising biggest size is included. Tazuna is still MIA cause lazy, will do it next time.

Edited September 18, 2025 by Muffination

[Numbers66]

2 hours ago, Muffination said:

We can only change the Model of a Given Costume, either by modding the actual model, or by telling the game to load a different Mesh.

But if you mean the latter, that is already done by two mods
- One is UMPD, which is a small Python script to customize your experience like swapping dresses, change Uma Display Parameter, etc.
- and the other is the is from Me and a Uma-Lewder Friend that replaces Swimsuit Texture and then changes as much as possible into using that costume

------
Btw, we also updated the Mod just now -- Now G2/G3 Costumes are covered as well, and the msising biggest size is included. Tazuna is still MIA cause lazy, will do it next time.

could you share where to find the UMPD and Uma-Lewder mods? never seen anything about these, least where to get them, seen some mention them but never where it came from? dont think anyways XD

[Numbers66]

4 hours ago, Muffination said:

------
Btw, we also updated the Mod just now -- Now G2/G3 Costumes are covered as well, and the msising biggest size is included. Tazuna is still MIA cause lazy, will do it next time.

Just a warning, Dont know why but this new update crashes the game when playing a race, it just wont load so couldn't tell you why it failed.

Edit: after loading it back up, without this update to see why it crashed, it seems to be crashing on a event (it happened on a race day)? even though the characters in question isn't using the costumes mentioned above? the event only had Gold City and Yukino Bijin with the standard uniform on... so no idea why it crashed...

side note, you mentioned above that people cant use the G2/G3 costumes because it crashes, maybe should of added a note with the mod that its only to be used during concerts and not general gameplay?

Edited September 19, 2025 by Numbers66

[Muffination]

On 9/19/2025 at 3:45 AM, Numbers66 said:

Just a warning, Dont know why but this new update crashes the game when playing a race, it just wont load so couldn't tell you why it failed.

Edit: after loading it back up, without this update to see why it crashed, it seems to be crashing on a event (it happened on a race day)? even though the characters in question isn't using the costumes mentioned above? the event only had Gold City and Yukino Bijin with the standard uniform on... so no idea why it crashed...

side note, you mentioned above that people cant use the G2/G3 costumes because it crashes, maybe should of added a note with the mod that its only to be used during concerts and not general gameplay?

Yeah it was a bug, and I simply was asleep + at work since then. It worked for when when I tested it, but the bug happened when you did G2/G3 Races in Summer, or had a Tracksuit scene in JP. Both are fixed now.

 

On 9/19/2025 at 1:49 AM, Numbers66 said:

could you share where to find the UMPD and Uma-Lewder mods? never seen anything about these, least where to get them, seen some mention them but never where it came from? dont think anyways XD

- ModLoader (UMPD): https://gamebanana.com/tools/20289
   - Provides a UI on which you can swap costumes in various situations, as well as change Body Measurements
- 3* Lewder: https://www.patreon.com/c/f4de/posts
   - Individual Half Nude-Mods for 3* Race Gear
- Uma Swimsuit Mod: https://discord.gg/dv5UCQpSwF (standalone Mod)
   - Python-Exe to change most costumes (NPCs, G2/G3, Concert Backrow) into Swimsuit, and swap Swimsuit-Texture into Nude
- Then theres a random Mod on this board (see below) which just changes one single Model Size into nude, and have to change all horses onto that size manually

 

Edited September 20, 2025 by Muffination

[Amynous]

On 8/28/2025 at 12:13 AM, goofyahhcats said:

Bare Nude ported to uniform & swimsuit

IF YOU WANT USE TO ALL CHARA

 

IN CHARA SETTINGS

SET HEIGHT 2, SHAPE 0, SKIN -1, BUST 3

APPLY & SAVE ALL 

be careful that skin 2 & 3 don't have texture

 

IN TRAINING SETTINGS

CHANGE COSTUME TO SCHOOL SWIMSUIT

 

used F4de gold ship base

UPDATE : ADDED SKIN 1 BUT PLEASE DELETE DATABASE AND SETTINGS AGAIN 

 

 

barenudcmn2.zip 12.24 MB · 748 downloads

Is this the only mod available for Rice Shower on the Global server?

[Muffination]

4 hours ago, Amynous said:

Is this the only mod available for Rice Shower on the Global server?

 

Technically its a mod for everyone, not just Rice Shower.
But if you want Rice Shower in specific, then you gotta wait for F4DE to make a mod for her.
 

[Kcalb040855]

Is there a discord server for Uma Musume mods? or an site i can find most? i also can't find the mod manager

[flowstuk]

Is there any way to convert JP mod to global?

[Numbers66]

On 9/16/2025 at 8:50 PM, Muffination said:

Thought it may be a good idea to share, so here's a rough summary of things regarding Costumes that I found out while making the Swimsuit Mod:

[1]: The G2/G3 Race gear starts to T-Pose when you replace the BodyShape, and starting a Race crashes the Game
[2]: The School Uniform is used by Loading screen chibis, so you can't get past "Starting Game" if changing that
[3]: Summer Tracksuit uses Gender and Seasonal, so that must be set to 0 to be changed.
[4]: Swimsuit is what I use for the Mod, and works without restrictions
[5]: Winter Uniform is same as [2] but for Winter months
[6]: Winter Tracksuit is same as [3], but additionally used as Chibi for "Select Strategy" aka Racing Style (so that gets Stuck, but hey, you can play Story with it).
[7]: Backup dancer costume has 4 different variants, but setting 'body_setting=0 seems to disable that, so the Swimsuit mod uses that to allow Custom Concerts
[8/11/12]: Replacing G1 Race Gear for NPCs works perfectly fine
[9]: HotSprings Towel is same as [4]
[101]: 2-star Uniform for Trainees works fine as long as you avoid the Chibis in Club or Champion Race, and only use a 3-Star Trainee for Career (cause of Goal Race Chibi).
[100000]: 3-star Uniforms for Trainees have the same restrictions as 2-star Gear, just that you need to use a 2-star Trainee for Career
[200000]: Special Horses like Meek have no restrictions
[900000]: Human NPCs work without any issue (since they use no Chibis) *EXCEPT* Tazuna -- She seems to have a unique mesh that is not replaceable without getting stuck on load
[901000]: Casual Costumes have no restrictions

Additionally
- you can change the respective 2-star & 3-star Costume of any given Trainee with "card_rarity_data.get_dress_id_1 / 2", subject to the same restrictions as above
- If you then also enable "use_home" for the target costume, you can have it show up on the Home_screen (but only when choosing Random, else the Server refuses it)

To explain the main reason why and what about Chibis:
- The game loads a chibi matching the costume of the selected trainee
- Since everything is set to [Swimsuit], it searches for a Chibi with Costume Id 4
- As that does not exist, the Game Log produces a neat error message saying that it cannot compute, and stops working

So if anyone knows of a way to tell the game to load the School Uniform Chibi regardless, then we would have kind of a Holy Grail, as everything could be reduced to a single model per Body Size (resp. one singular if you are an unfaithful Heretic)

for this Chibi problem... is there a way to force them to load the same chibi outfit, so maybe they all use one of the uniform or raceware no mater the outfit equipped? would that work?

Just a thought lol

Edited September 20, 2025 by Numbers66

[Muffination]

37 minutes ago, Numbers66 said:

for this Chibi problem... is there a way to force them to load the same chibi outfit, so maybe they all use one of the uniform or raceware no mater the outfit equipped? would that work?

Just a thought lol

If there is such a way, then I either have not found it or it does not exist (I believe the latter).

You could however do it like goofyahhcats and just set every costume to use the School Uniform, then all Chibis use that too -- But you'd have to replace the model itself then to "keep using it" (cause we chose the Swimsuit as you only need to replace the Texture here).

That said, unless someone else is going to do it (as in, *NOT* an all-for-one solution, but with a proper model for each size and redrawing for each color), my friend may eventually do it.

Edited September 20, 2025 by Muffination

[Numbers66]

9 minutes ago, Muffination said:

If there is such a way, then I either have not found it or it does not exist (I believe the latter).

You could however do it like goofyahhcats and just set every costume to use the School Uniform, then all Chibis use that too -- But you'd have to replace the model itself then to "keep using it" (cause we chose the Swimsuit as you only need to replace the Texture here).

That said, unless someone else is going to do it (as in, *NOT* an all-for-one solution, but with a proper model for each size and redrawing for each color), my friend may eventually do it.

be much easier for modders if the chibis got edited somehow lol

thanks for the information, had the thought when playing as dont really pay attention to the little chibi as much XD

[icycookie]

inb4 the modders lood the chibis 👀

[Numbers66]

2 hours ago, icycookie said:

inb4 the modders lood the chibis 👀

they find a bypass or something? lol

[goofyahhcats]

i'm want making air groove & biwa half nude using goldship F4de base because same body proportion
patreon base will not release until F4de made nude base with 7 body proportion & 4 breast size

[einnarr]

I was customizing clothes, but became interested in half-nude models.
How do save two models as one asset ?
Also, is there a way to load a completely different fbx model ?

[goofyahhcats]

48 minutes ago, einnarr said:

I was customizing clothes, but became interested in half-nude models.
How do save two models as one asset ?
Also, is there a way to load a completely different fbx model ?

can't save in one asset
in Dress Setting but i don't recommend do

[Arasu69]

so there was that one clip going around where everyone had bigger breasts anyone know what mod that was? (it was confirmed to be a mod)

 

[einnarr]

Maybe it's a problem with the armature, but my body from the neck down disappears...
I lack the knowledge to load custom costumes into the base body and make them work on Uma Musume...