Dionysus 🏳️‍⚧️ | Change Demon
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edionysus.bsky.social
Dionysus 🏳️‍⚧️ | Change Demon
@edionysus.bsky.social
Change Demon Vtuber who likes to edit their model a lot, and play osrs.

Using 3D and VRC models.
Twitch: https://www.twitch.tv/dionysus_of_beer
Okay once you have Unity up and running, this guide I made today goes over how to add on the missing physics, I mostly just cover hair but principles apply to adding all the components on for everything.

www.youtube.com/watch?v=oRm4...
VRM 1.0 Adding physics on a model missing Spring bones, colliders and collider groups
YouTube video by Dionysus Of B
www.youtube.com
November 27, 2025 at 2:17 PM
Okay cool looks like it is the package that's wrong, this version should import okay github.com/vrm-c/UniVRM...

It will need a fresh project tho
Release v0.128.3 · vrm-c/UniVRM
Installation You can install UniVRM using the UnityPackage or the UPM Package. The UniVRM supports Unity 2022.3 LTS or later. UnityPackage Download the unitypackage, and drag and drop it to import ...
github.com
November 27, 2025 at 1:05 PM
Lemme find out how to fix this one
November 27, 2025 at 12:50 PM
I just installed that version of unity and installed the package and got the same errors so looks like the UniVRM peeps haven't stayed up to date on compatible versions. Testing on an older version also gives the same error, must be a dependency that's missing.
November 27, 2025 at 12:49 PM
Ah okay, it shouldn't be a huge problem but something to revisit if you start using Unity for something outside of working on your models.
November 27, 2025 at 12:49 PM
Ah yeah it's warning that Unity under admin can be risky as it could run all sorts of scripts. Shouldn't be a problem since you're working on your own models rather than someone else's game files. What happens tho when you click restart as a standard user?
November 27, 2025 at 12:36 PM
Yeah and I can see it's missing VRM menus up at the top so those errors were for important stuff. It's possible Unity just handled the VRM package import super badly which means we'll need to create a new project to try again. Let me test that out to see if it's that specific version that's an issue
November 27, 2025 at 12:28 PM
You can get to the folder quickly by right clicking in the assets folder in Unity and select Show in Explorer, then going into the asset folder once explorer loads it up. Then you can copy/cut the model into this folder and it'll import it into the project.
November 27, 2025 at 11:39 AM
That's a lot of errors, it could just be stuff we don't need so worth trying out this install anyway. Importing models isn't intuitive yeah, you need to copy the model file into the assets folder of the Unity project outside of using unity.
November 27, 2025 at 11:39 AM
Most likely was yeah, this version of unity should let you install the updated vrm package no problem
unity.com/releases/edi...
Unity 2022.3.62f3
2022.3.62f3 download and release notes.
unity.com
November 27, 2025 at 10:37 AM
Cool I was hoping it was going to be 1.0 as I don't have my unity setup for 0.X anymore. There's an updated vrm plugin for unity github.com/vrm-c/UniVRM

It needs a later version of unity 2022.3 or later.

We'll need to do this fix in unity, let me quickly make a tutorial for what to do
GitHub - vrm-c/UniVRM: UniVRM is a gltf-based VRM format implementation for Unity. English is here https://vrm.dev/en/ . 日本語 はこちら https://vrm.dev/
UniVRM is a gltf-based VRM format implementation for Unity. English is here https://vrm.dev/en/ . 日本語 はこちら https://vrm.dev/ - vrm-c/UniVRM
github.com
November 27, 2025 at 10:23 AM
Ah I get you, we're going to need to do the lovely task of setting up spring bones, colliders and collider groups, with a lot of luck we won't need to add much. What version of vrm is the model? 1.0 or 0.X?
November 27, 2025 at 10:03 AM
That could just need tweaking the tracking settings, but could also be it didn't apply all the blend shapes, any chance of a demo of the basic movements?
November 27, 2025 at 9:40 AM
My first guess would be they have the wrong names, how are the bones misbehaving? Do any of them react correctly?
November 27, 2025 at 9:30 AM
Yes I believe so, the vrm shader does have an outline setting that you can fall back on but I've had a lot of trouble getting it to look good on default settings.
November 27, 2025 at 1:33 AM
A phew, glad this wasn't about me 😅
November 26, 2025 at 10:09 PM
Okay sounds cool, let me know how you get on with it tomorrow
November 26, 2025 at 12:42 PM
Ah awesome, now to see if it exports okay
November 26, 2025 at 12:35 PM
That should be fixable if you change the alpha mode from opaque to either cutout or transparent (test both to see how they look as one should look a bit better)
November 26, 2025 at 12:27 PM
If you scroll down and enable VRM MToon Material, and then click on the boxes I've drawn arrows too, we need to get the textures from the above screenshot into their colour coded boxes. It should let you select from a dropdown what's already in the object.
November 26, 2025 at 10:44 AM
Ah okay yeah it handles the textures differently so doesn't have a 1 to 1. I don't know how Blender is handling those associated files, but hopefully we can reference them elsewhere.

I've highlighted in the first image the important parts of the material as is. /cont
November 26, 2025 at 10:44 AM
Hmm I'm not sure what to suggest next sorry without the model in front of me. Unity probably just doesn't want to understand the material files embedded in the fbx version.

If you looked at the materials in blender what details are in the top boxes?
November 26, 2025 at 2:21 AM
Ah it probably doesn't know how to translate the materials over to each other. Do you get similar errors when you exported to FBX too?
November 26, 2025 at 12:30 AM
Woah yeah, that's a lot of material errors, Koi probably used non-standard materials then. To fix you'll need to go through each material and enable VRM Toon Material. You can do this on the side menu. Click the red sphere then scroll down until you get to VRM material and enable vrm toon material.
November 26, 2025 at 12:21 AM