OSC

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OSC is a way to get different devices and applications to talk to each other. VRChat announced on February 16th 2022 OSC for Avatars. Most commonly used to have body-,eye- and face trackers communicate with VRChat.

OSCQuery

OSCQuery is a protocol to connect OSC applications together easier. Information on how to connect with VRChat with OSCQuery. VRChat also provides a C# library on GitHub.

OSCQuery Libarys currently available to the public:

Javascript implementation without example scripts on Github OSC-Query-JS

Typescript with example scripts on github by Jangxx: node-oscquery

Python with examples on the github readme.md vrchat_oscquery, An older variant also more descriptive: tinyoscquery

Rust implementation with baseline functionally: oscquery

OSC Feature set

OSC Can control a muiltiude of things within vrchat, While primarily focused around avatars OSC has the ability to modify/control some features such as control of the Dolly camera check out the implementation here on the Dollys OSC Intergration page

Access to user params such as 'avatar/parameter/voice' sending the value back as a float 1 will unmute your microphone, A float 0 will mute you.

Chatbox input can be accessed under '/chatbox/input'

Resources

OSC Overview on the VRChat Documentation

Full OSCQuery proposal and how it functions while including example code