How to Make VRM model sit in Unity/VSeeFace

Sixth part of my VRoid tutorials. This time the tutorial is about changing the default standing pose to sitting in Unity. This tutorial is tested on VSeeFace and may not work correctly on other trackers.
EDIT: With the addition of VMC protocol support in VSeeFace this tutorial is now deprecated. You should send the sitting pose from Unity through VMC protocol instead.
You can get VSeeFace at:
www.vseeface.icu/
Make sure to check the previous tutorials on how to setup your Unity project for VRM file loading:
• How to Change outline ...
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[@MagicalGirlUsagi]

Thank you, I will be using this tutorial later to get my Vtuber to sit in a wheelchair 💕

[@betularussula]

your tutorials are incredible! you deserve more recognition. I'm so excited to customize my vroid character!

[@Emiliana_vt]

Great tutorial, I actually had a few people asking about this kind of thing! 😄

[@Suvidriel]

The downside with this is, though, that the legs cannot be animated so those that want to move around will also need a secondary vrm file for that :)

[@Emiliana_vt]

@@Suvidriel That's true, but hopefully it's enough to tide people over until there's a proper posing or animation system in place.

[@antwan2323]

thank you untill i watched this i was sitting at my desk for a while trying to figure this out

[@GlitchVR]

Thank you for this! I have my character sitting however when I hit play in unity they fly across the room. I have tried to anchor the model onto a sphere but still no luck! Any ideas?

[@TreasonsGreetings]

This tutorial is wonderful! One question though, has anything changed in regards to this for the newer versions of VSF to allow keeping IK? For instance, all I would like to do is change the default VSF standing pose, but still keep the IK. If I follow the method from this video I assume that’s not possible?

[@Suvidriel]

I'll be covering the new way of doing this soonish

[@Chengechan]

First of all, thank you for your helpful tutorials. Can I ask you how can I send VMC data from Unity to VSeeFace? Do I need a special unity package?

[@Suvidriel]

I think Emiliana (creator of VSeeFace) made an example unity project for sending the data. Can't remember where I found the link though. It was either in VSeeFace's homepage or Virtual Deat's discord. I personally used the examples from VMC: github.com/sh-akira/VirtualMotionCaptureProtocol/tree/master/sample In addition to the sample scripts you'll also need uOSC and UniVRM asset packages

[@CosmicGirl_yt]

I edit the pose with UniVRM 0.96.2 but I am forced to change to T pose to be able to save :( how can I bypass that? Thanks

[@Suvidriel]

I'd recommend using vmc protocol or vsfavatars-format with sitting animation. Do check out my animation chain-tutorial as it shows how to better do a sitting animation these days. Also you should use univrm 0.66 - the newer versions are not correctly supported by anything

[@TheDarkWallChris]

Strangely, when I do this vseeface tells me that it is failing to load the avatar. I'm uncertain as to why though.

[@Suvidriel]

I haven't tried with the latest VSeeFace but did you make sure to rename the bones and all their child bones. It'll give the error especially when the bone names are incorrect, missing or if there's 2 bones with the same name

[@TheDarkWallChris]

@@Suvidriel yeah, I didn't fully understand why I was doing that part but I did do it just like in the video. - adjust the leg positioning -Duplicate leg bones -Alter the names of all the originals -Change the new ones to match the original name I don't think that I missed anything. I also tried it in luppet and it didn't seem to work there either. The only thing I can think of is I did briefly scroll through the various bones for other things. I don't think I changed anything. Maybe I did though. I'll try it again tomorrow

[@Suvidriel]

@@TheDarkWallChris Hmm I tried with the model that I made during the tutorial and it was still loading up with the latest VSeeFace. But yea make sure that you do rename all the original child bones - especially the last children since those are tied to the inverse kinematics. The error sounds like it might not be finding some of the bone names though.

[@TheDarkWallChris]

@@Suvidriel I tried it again, I must have fumbled around with something the first go around. Seems to work fine now. I appreciate the help and the tutorial.

[@romitauwu_]

i have the same problem, i can´t fix it :(

[@tototaniwha]

Would this work for arms too?

[@Suvidriel]

Yes but probably not the best idea. Maybe look into the animation chains-tutorial for VSeeFace SDK that I posted a while ago. That might give you a slightly better approach that won't break the model

[@tototaniwha]

@@Suvidriel Thank you Suv! I'll take a look

[@MAMAvsGOD]

update please!

[@JojoAi]

it still work tho