[ILLUSION] Koikatu! - Questions & General Discussion Thread

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shaisabrec

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8ZBG9eV.png


Anyone know how to fix this kind of issues? The dick just goes through her chin. Even the default scene model did this
 
cesarnator

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The whites of the eyes keep turning out too dark. I want to make them brighter, but I couldn't get them brighter using the Material Editor. What should I do?
did you copy and paste the shader of the chika?
vGKFUpg.png

11OC2oV.png
 
Luchok4515

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I have an unusual question again. There is a Plugin to control butt physics, right? "KK_ButtPhysicsEditor"
Is it possible to create the same plugin but for Thighs? xd
 
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Koikatsu its not GPU demanding.
Koikatsu Its not CPU demanding.
Its even worse.
Koikatsu is "Core 0" demanding.

"...Core 0"?

Your CPU (Central Processing Unit) is made out of different cores inside it.
Why? -> Because its optimal. Having only one faster core doing stuff became inviable because of physical and logical limits.
Therefore, manufacturers started increasing the number of cores inside a CPU.

Why have an overworked person doing stuff when you can have multiple clones of said person doing said stuff in paralel?
The more clones, the more stuff you can do. Thus, multicore cpu´s were born:

f6b75CN.jpeg

In my case the 5700x3d I have as CPU has 8 cores, 16 threads which are like 8 people with 2 hands each doing stuff for me:
tRFMt60.png

Each core is assigned to a task it must complete before starting another task. The more cores the more tasks you can do.

So, whats happening with Koikatsu?
-> The version of Unity (Koikatsu´s engine) running (5.6.2) its not designed to run stuff in parallel nor have good multithread support.
-> All the workload (physics, blendshapes, IK, meshes, accesories moving) is done by only one core.
->As such, even if you have 6 fps, the CPU usage will be at maximum 25%:

CPU: Unused
tAj8fhB.png
<-This with Koikatsu ON gives 10 fps.
GPU: Not essential, but helps.
jSHN49W.png
<- Withouth any frame gen.
cnZ4CKK.png
<-60% of a RTX5070ti since im using smooth motion frame 2X, with lossless scaling 4x is even less.
A 3070ti would be enought I guess?

Why?
-> Real multithread support was enabled for Unity from 2020 onwards, Koikatsu launched on 2017, its development started way earlier:
PlsfhcO.png


Thus, Koikatsu its not optimized. What does it mean?
->Koikatsu will never use all the processing power of your CPU. It will allways assign all of the workload to 1 core even if you have 4,6,16, 64 cores.
Thus, even if you have a supercomputer, Koikatsu will be tied to the max speed of core 0 and maybe core 1 and 2.

->GPU is not the bottleneck, so the resources allocated to the GPU are free, which means:
You can use Lossless scaling (6x) frame generation or enable nvidia´s Smooth motion frame (2x) to do frame generation for you
KDUTpfZ.png

Yes, they increase latency, but who needs fast reactions on a porn game?

You can have programs like ReShade which inject effects and use only your graphics card to enable extra effects withouth a big penalty:
E0kpJsL.png


What can we do then?
The chance of Koikatsu 2 (with all the optimization, raytracing, dlss,whatever) releasing is really slim.
After all, Illusion closed on 2023 and Illgames is not its official successor.
Thus the only way is to optimize the scene.

How?
Well, the biggest culprit of low fps on scenes is actually... the accessories you have on each character.
Why? Because they move. And there is only one thread calculating how each accesory moves.
Therefore, it lags like hell.

Solution:
-Disable gravity on accesories and clothes.
-Work with characters with less clothes or less accesories.
-Check how much fps maps take from you. Some maps are fps hogs.
-Use the video capture mod to create videos (It renders the image frame by frame and then glues all of them together lmao) which takes a while but works.
-Learn about Graphic settings.
---
Life and death are decreted by fate. Prosperity is up to heaven...
Im going to be honest with you, if Koikatsu launched on 2026 it would have probably been done on Unreal Engine 5.
It wouldve come out with lumen, raytracing, DLSS, and need 64 gbs of RAM and multi frame gen to run... and so it would suffer of success.
Because nobody would be able to launch it.

A5TaPdj.png

So... maybe the current state of the game is a blessing on disguice.
Thank you for the thorough explanation, this has been bugging me for like over a year.
I still wonder though, what is it about the HF-Patch that makes everything seem to run slower overall be it CharaStudio or stuff like the character creator in the main game? I've done installs of KK with just better repack and kplug and performance doesn't seem that affected for me, but then if I do a HF-patch install on it's own then I start getting noticeable FPS drops.
Like this wouldn't bother me as much if other people experienced the same but all I ever see online is people recommending the HF Patch and nobody seems to acknowledge the performance hit is has.
 
White_Runner

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Thank you for the thorough explanation, this has been bugging me for like over a year.
I still wonder though, what is it about the HF-Patch that makes everything seem to run slower overall be it CharaStudio or stuff like the character creator in the main game? I've done installs of KK with just better repack and kplug and performance doesn't seem that affected for me, but then if I do a HF-patch install on it's own then I start getting noticeable FPS drops.
Like this wouldn't bother me as much if other people experienced the same but all I ever see online is people recommending the HF Patch and nobody seems to acknowledge the performance hit is has.
A patch... is a patch.
nqhGf3m.png





No, but seriously, it depends on what the patch is doing.
Currently the latest version of that patch is updating a lot of mods and stuff up to a stable "2025/Nov/04" version:
YzN9l7t.png


So, if you were to have a more up to date mod... it would be overwritten...
And you will end up with and old version of a mod which might be bugged.
LIOzrOQ.png
Thats why, he recommends to use the KKManager update tool as stated here: https://gist.github.com/ManlyMarco/...e3f#solutions-to-common-issues-with-the-patch
9sNJ729.png

And to update would be something like this:
V0FaKPe.png


Thats probably whats slowing down your chara studio install.
That... or maybe he´s installing a mod thats bugging the system... or deleting one which is speeding it up... who knows...
 
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Need some help with the Breast Physics Controller mod please,
i made a fresh game install (with betterrepack) due to other issues, but when i re-installed BPC, i cant get it to work properly
When i enable it/adjust the sliders, i see the breasts jiggle a bit like it *wants* to work, but it reverts back to character default state, like something else it immediately overriding the BPC mod
i made sure that my BepinEx, BepisPlugins and Modding API are all up to date
any help/suggestions are super appreciated
 
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Does anyone know why using lo_r's clothes break textures? I don't know if its specific to that author's mods or a common occurrence when using modded clothes in general (although some retain their appearance/don't break)

Every time I select a piece of clothing from the mod and equip it directly on another character, the textures break.
But if I transfer the clothes by going to original character -> save clothes then -> target character -> load clothes, the textures remain intact.

I’ve tried a few things that I thought might fix it, but none worked:
  1. Copying the material editor settings from the original clothes to the new character
  2. Dumping the textures and reloading them onto the new clothes
Disclaimer: I know next to nothing about KK modding particularly in material/texture manipulation; please go easy on me 😅

Appreciate any input on this
 
AbabaMerumeru

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Does anyone know why using lo_r's clothes break textures? I don't know if its specific to that author's mods or a common occurrence when using modded clothes in general (although some retain their appearance/don't break)

Every time I select a piece of clothing from the mod and equip it directly on another character, the textures break.
But if I transfer the clothes by going to original character -> save clothes then -> target character -> load clothes, the textures remain intact.

I’ve tried a few things that I thought might fix it, but none worked:
  1. Copying the material editor settings from the original clothes to the new character
  2. Dumping the textures and reloading them onto the new clothes
Disclaimer: I know next to nothing about KK modding particularly in material/texture manipulation; please go easy on me 😅

Appreciate any input on this
I've never used any of lo_r's mods but, speaking from experience, make sure to check/copy all the materials in ME like in this Grafko dress:

5HBzqUU.png


Lwy5TEy.png


And also check if there are any other overlays/alpha masks:

cYhz3cR.png


But the best way to do it is like you've already done by saving the coordinate, loading it and manually trasnfering/removing the accesories you dont want and then transfering/copying the ones from your character. I do it this way...
 
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I am having this glitch with some of my charactes during story mod, their genitals get bigger by each day, the only way I found to stop it was to change the genital scales to 100 or bellow, but I don't really want to change some of them since they look better with the current scales, does anyone know of another way of fixing this issue?
 
AbabaMerumeru

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I am having this glitch with some of my charactes during story mod, their genitals get bigger by each day, the only way I found to stop it was to change the genital scales to 100 or bellow, but I don't really want to change some of them since they look better with the current scales, does anyone know of another way of fixing this issue?
Some bones can cause issues like this in story mode, no clue why.

For example, if I edit the Y offset for the cf_n_height, it makes the characters start to incrementally levitate off the ground. The work around I found was to try edting other bones that make the same changes and see if it works. It's really trial and error.

YJmyShs.png


Solution in my case was to edit the Y offset for the root bone right above it but only when I add them to story mode.
 
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Labugoodies

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Some bones can cause issues like this in story mode, no clue why.

For example, if I edit the Y offset for the cf_n_height, it makes the characters start to incrementally levitate off the ground. The work around I found was to try edting other bones that makes the same changes and see if it works. It's really trial and error.

YJmyShs.png


Solution in my case was to edit the Y offset for the root bone right above it but only when I add them to story mode.
Oof, I still don't know how to work with bones, gotta have to try. Thanks for the help.
 
AbabaMerumeru

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Oof, I still don't know how to work with bones, gotta have to try. Thanks for the help.
It can really be a pain hahahah

As a bonus, Imma show you somehing I don't know many people know about.

If you ever messed around with the joint bones ( j_ ) for the legs/calves, you may have noticed that when the characters bend the knees they levitate off the ground even if you increase them proportionally. (I recommend only incrementing joint bones this way as the proportions can get wacky depending on the axis of the body part, use n_/s_ or something else if you intend on independently editing x/y/z scales)

The fix I found was to scale down/up the j_hips bone depending if you decreased/increased j_thigh00 or/and j_leg01 and then scale the character up/down using the n_height bone.

For example this is what did it for me for this character:

HF9OOcA.png


mi22yXf.png


It will not be perfect like if you had not edited those bones in the first place but it can get almost negligible.

Also, I recommend doing this in studio so you can have two copies of the same character overlaping and get the same height you intended!

Hope it helps! ദ്ദി(˵ •̀ ᴗ - ˵ ) ✧
 
Neon

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Is there a thread to help with custom overlays being made?
 
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I've never used any of lo_r's mods but, speaking from experience, make sure to check/copy all the materials in ME like in this Grafko dress:

5HBzqUU.png


Lwy5TEy.png


And also check if there are any other overlays/alpha masks:

cYhz3cR.png


But the best way to do it is like you've already done by saving the coordinate, loading it and manually trasnfering/removing the accesories you dont want and then transfering/copying the ones from your character. I do it this way...

Copy and pasting the materials one by one worked! Thanks :)
 
White_Runner

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KK RX22, Grafko Lynae
any idea how to fix this clipping?
body: visible
body: invisible
I would try with KKUTS_Tess or KKUTS_Item_Tess.
Not decreasing the edge lenght (tesselation) per se, but just increasing the obstruction amount:
Mcphka9.png
1YtCl8M.png


q35I7gL.png


gpoibRQ.png
 
Neon

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Who owns a folder with the DBZ Content in it? I want to contribute to it. In Dms though.
 
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there are a SD crash my game, I know there are a corrupted mod in my game but I don't know how to find it.
 
The5thWorstGamerEver

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I want to preface this by stating I'm a complete noob when it comes to scene editing. The only things I know are basic stuff like changing which character is being used in the scene and fixing a collider issue by disabling the dynamic collider by turning off all the affected dynamic bones.

I'm running into a strange issue where the iris seems to be overlayed on top of the faces on certain scenes. I attached 2 screenshots. The first has both the irises and the second one I was able to disable one of the irises so you can see the sclera(?) and how the iris is on top of it. Only certain characters have this issue so I suspect it's the eye overlay or something but I don't know what. Any ideas on how to fix this?

2TcKyTX.jpeg

VsGX1Zh.jpeg
 
AbabaMerumeru

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I want to preface this by stating I'm a complete noob when it comes to scene editing. The only things I know are basic stuff like changing which character is being used in the scene and fixing a collider issue by disabling the dynamic collider by turning off all the affected dynamic bones.

I'm running into a strange issue where the iris seems to be overlayed on top of the faces on certain scenes. I attached 2 screenshots. The first has both the irises and the second one I was able to disable one of the irises so you can see the sclera(?) and how the iris is on top of it. Only certain characters have this issue so I suspect it's the eye overlay or something but I don't know what. Any ideas on how to fix this?

2TcKyTX.jpeg

VsGX1Zh.jpeg
This card seems to be using a headmod. Swapping non-headmoded cards for headmoded ones and vice-versa does not work well as they have custom expressions that vary from mod to mod.

Your best bet is right-clicking KKPE, then going into Blend Shapes and messing around with the sliders for the eyes.
 
cesarnator

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I want to preface this by stating I'm a complete noob when it comes to scene editing. The only things I know are basic stuff like changing which character is being used in the scene and fixing a collider issue by disabling the dynamic collider by turning off all the affected dynamic bones.

I'm running into a strange issue where the iris seems to be overlayed on top of the faces on certain scenes. I attached 2 screenshots. The first has both the irises and the second one I was able to disable one of the irises so you can see the sclera(?) and how the iris is on top of it. Only certain characters have this issue so I suspect it's the eye overlay or something but I don't know what. Any ideas on how to fix this?

2TcKyTX.jpeg

VsGX1Zh.jpeg
ctri+i search hitomi and uncheck them
H0GllzY.png
 
The5thWorstGamerEver

The5thWorstGamerEver

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This card seems to be using a headmod. Swapping non-headmoded cards for headmoded ones and vice-versa does not work well as they have custom expressions that vary from mod to mod.

Your best bet is right-clicking KKPE, then going into Blend Shapes and messing around with the sliders for the eyes.

ctri+i search hitomi and uncheck them
H0GllzY.png

Thanks for the advice. I tried looking for the hitomi in the node constraints and they didn't exist which looks strange to me. The scene I'm using as the example is Hongcha #252 that I got from the sharing forum in case that helps. Posted two screenshots one where I tried searching for hitomi and the other just the list. They were also taken at an angle that you can see the iris overlay far above the eyes.

I tried messing with the Blend Shapes for the eyes and I can see the eyes being adjusted but the iris overlay wasn't moved so I'm not sure if there's a solution there. I'll keep messing with it and maybe something will come up.

Thanks again for the attempted help, at least I learned a bit more on what I can mess with haha.

5ktjgTA.jpeg

JgjTH5e.jpeg
 
HllRzer

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So I just checked like you said. Crashes? Storage space? No issues at all. I’m not sure what else I should be checking…


Do you upload scene data on Pixiv? If so, could you share your Pixiv link and introduce yourself?
@kilala is telling the truth. Harada's recent scenes typically include a dummy file 40 MB in size (the size limit for free uploads to bepis DB) loaded as a maintex replacement for a sphere object. In the past, He used a bloated Bremerton card for the same effect.

Below is a scene from early this month. (Imgur may delete it so whatev)
txv6y3T.jpeg

Note that the sphere is showing the "invalid texture" image. If you extract the maintex on the sphere, you'll get just that.
81G95Vs.jpeg

127 bytes is practically nothing and the characters only weigh 4.40 MB, so why is the scene so big?
GCBRPCk.jpeg

By dumping the textures (using the newest Material Editor) we find our culprit.
 
AbabaMerumeru

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Thanks for the advice. I tried looking for the hitomi in the node constraints and they didn't exist which looks strange to me. The scene I'm using as the example is Hongcha #252 that I got from the sharing forum in case that helps. Posted two screenshots one where I tried searching for hitomi and the other just the list. They were also taken at an angle that you can see the iris overlay far above the eyes.

I tried messing with the Blend Shapes for the eyes and I can see the eyes being adjusted but the iris overlay wasn't moved so I'm not sure if there's a solution there. I'll keep messing with it and maybe something will come up.

Thanks again for the attempted help, at least I learned a bit more on what I can mess with haha.
I downloaded the scene and went after 2 mei cards that might have the same headmod, tried swapping in a bunch of other charaters but couldn't replicate your issue :(

Maybe try reinstalling/updating your install?

@kilala is telling the truth. Harada's recent scenes typically include a dummy file 40 MB in size (the size limit for free uploads to bepis DB) loaded as a maintex replacement for a sphere object. In the past, He used a bloated Bremerton card for the same effect.

What would be the point besides bloating the scene? Are these intentionally leaked?
 
HllRzer

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What would be the point besides bloating the scene? Are these intentionally leaked?
His scenes used to get posted on bepis all the time. He bloats them largely to prevent that (I think).

I'd like to agree with you, but it doesn't make sense to give that resolution to a very small part of a panzer (of 22 materials) that they packaged for the charastudio, literally, I could cook chicken on my GPU. 🤣 😭
Which mod are you referring to? I'll posit a guess and say he upscaled the image several times it's original size to combat the awful color banding DXT5 conversion introduces (which then gets exacerbated by KK's awful color filter). I need to take a look myself to see for certain.
 
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ThaiAnk

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kUGq24H.png

Anyone know what causes this problem on CHINA DRESS specifically and how to fix it?
 
Helblind

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Hello guys, quick question, is there any program that you guys use to find and delete duplicate files? Like if they had different names but are the same scene.
Ask questions not related to card sharing here.
I use czkawka.
 
The5thWorstGamerEver

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I downloaded the scene and went after 2 mei cards that might have the same headmod, tried swapping in a bunch of other charaters but couldn't replicate your issue :(

Maybe try reinstalling/updating your install?



What would be the point besides bloating the scene? Are these intentionally leaked?
Thanks for the help. I got the idea to mess around with the interpolables and I noticed two that were for the "hitomi". I messed around with the one for the left eye and was able to make a band-aid fix by changing the Z-Axis by like a very small amount. It's not perfect but looks good enough for me. It's not a huge hassle so I can work with this and I can make any changes as needed.

t5Vafhp.jpeg


Which Mei cards did you try? I know there's multiple floating around. The one I used as an example was frecklerae's. A good number of their other cards do not have this issue but a handful do. I think it's just the headmod as you suggested that is the cause...or maybe it's my game. A majority of my cards do not have this issue so it's not too big a deal for me.

I'll try updating my game when I get the chance. The one time I did update it, all my animated scenes broke so I restored all the plugins and haven't updated since.

Thanks again all for the help and advice.
 
AbabaMerumeru

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kUGq24H.png

Anyone know what causes this problem on CHINA DRESS specifically and how to fix it?
It's due to the nipples protrusion. Try going into pushup and enabling the flatten option.

Which Mei cards did you try? I know there's multiple floating around. The one I used as an example was frecklerae's.
Would you mind sharing the card for me to test it?
 
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J5wFLwq.png

View: https://imgur.com/a/jjyuX9O


I'm confused on whats going on with this card. While in KP it looks fine. (Although it does say "Could not load shader: Xukmi MainClothesAlphaPlusTess"). Once I get into chara studio its suddenly looks like this. I made sure Xukmi was updated and it is, and no old version is lingering from what I can tell. How can I fix this ? Its happening with different outfits and seems to primarily affect bras, underwear and tights. Any help would be appreciated.
 
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J5wFLwq.png

View: https://imgur.com/a/jjyuX9O


I'm confused on whats going on with this card. While in KP it looks fine. (Although it does say "Could not load shader: Xukmi MainClothesAlphaPlusTess"). Once I get into chara studio its suddenly looks like this. I made sure Xukmi was updated and it is, and no old version is lingering from what I can tell. How can I fix this ? Its happening with different outfits and seems to primarily affect bras, underwear and tights. Any help would be appreciated.
After taking a quick lesson on Tessellation I have learned something new and fixed my problem thank you White Runner for your explanations on tess!
 
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