VRC Skeletal Hands

This is an OSC based Solution to Skeletal Hand tracking in VRChat developed by Dyslex1k and with a lot of help form HyBlocker. This was a small app put together in C++ that sends Curl and Splay parameters through OSC to allow Skeletal Hand tracking before VRChats Implemetaion goes live. This will work with any device that supports skeletal input though the quality may vary from controller to controller!

Docs for Skeletal Input (For those interested): https://github.com/ValveSoftware/openvr/wiki/SteamVR-Skeletal-Input

Demo with Valve Knuckles

VRC-Skeletal-Hands.mp4

The first part is VRChats current finger tracking and when the toggles are enabled the VRCSH system is enabled.

How to set up

1. Add the unity package to your project.
2. Add the VRCFury/ Modular Avatar Prefab to your model in the hierarchy.
3. When in vr Launch the app.
4. Enable the Skeletal input in the quick menu.

Updates?

I will be working on reducing Bit count and adding the Proximal and Distal Curl values so devices like the DiverX gloves or "True" Finger tracked devices can be animated better. You can expect to see this in a week or two if all goes well!

Syncing In VRChat

Currently syncing the parameters requires 144bits of data (This is too much) I figured out a potential way of halving it though I may not develop due to information about better input for VRChat coming soon. Though if you want you want to develop a solution please do and create a Pull Request.

So what was the plan?

I spoke with a friend called nesterboy and came up with this solution:

• Each parameter will have 4 bools each (This would be like Binary)
• These parameters will use a blend tree in the FX layer to do the maths to convert them to float values
• These float values will then be used on a remote parameter like: SH/Remote/Left/Curl/index
• Osc smooth is then applied to hide the lowered acuracy

You can see an example of the Blend tree for 1 parameter here:

This is the current Idea on how this would work though due to my personal life and VRChats solution being "Very Close" I will not spend to making this. Though if VRChat hasn't implemeted this in a month I will work on making this solution a reality!

Known Issues

• Hand tracking doesn't work if the steamVr overlay is open (Just close steamVr overlay to fix the issue).
• Touch Controllers have no gesture system.
• Does not support upper and lower finger curl. (DiverX Gloves)
• Currently uses a large about of bit space to sync remote users. (You can use no sync templates avoid this)