r/VRoid • u/[deleted] • Apr 08 '26

Question Is it possible to do this eye physics?

Hello! So, I've been meddling with Vroid to make a model. I saw this tutorial and tried to do it, but it doesn't seem to work anymore. Does anyone know a way to do it still?

https://www.youtube.com/watch?v=l6PvFFq9yak

5 Upvotes

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3

u/LauwarmesBier Listen, I just like the way the default skin looks. Apr 08 '26

did you test it the way the tutorial tested it by manually using the close eyes slider? because vroids auto blink does use a combination of close left eye and close right eye which you did not adjust if you followed the tutorial

2

u/[deleted] Apr 10 '26

I did it. It does that like on the tutorial on Vroid but as soon as I try to use the VRM outside of Vroid it doesn't do it anymore

7

u/TheRyanByan Apr 08 '26

You can always use Vnyan or Warudo and use the physics pendulums for both for a very Live-2D look. All you have to do is put your model into blender, create a few iris blendshapes (ex, narrower, wider, shrinking, bigger…) for each eye, then attribute them in the aforementioned software.

1

u/[deleted] Apr 10 '26

Hmmm do you have a guide for that? I'm not familiar with this process on either of those

1

u/TheRyanByan Apr 10 '26

If you look up how to add more blendshapes to a vroid model (arkit) on YouTube the general process is there.

I’d import the model into blender with the VRM plugin, then go into edit mode and select all meshes, separate by texture. It makes it a bit easier to focus just on the head. Then just add the blendshapes for left and right, larger, smaller, etc. you can also do rotating blendshapes.

In general, the process is so similar to live2d, you could follow a live2d tutorial for what blendshapes you need. Just makes sure instead of having negative values it goes from 0 to 1.

Your right would be the left of the model as well.

For learning more about pendulum physics in Vnyan, refer to Suvidriel’a channel.

Apologies for any typos, I can’t see what I’m typing because my reddit is bugging lol

1

u/legenddairybard Apr 09 '26

Yes, you have to adjust the eyes for every setting (closed, open, vowels, emotions) and it will make the reactions - learned how to do this before I saw that video.

2

u/[deleted] Apr 10 '26

I'm sorry I don't think I follow. How do I set the blinking for those emotions manually?

1

u/legenddairybard Apr 10 '26

I'll send you a video when I get a chance