Build Third Avatars Bundles (.3b) to use with Third Uploader and third3d.com.
- Open VRChat Creator Companion
- Settings -> Packages -> Add Repository
- Insert https://github.com/third3d/unity-sdk/releases/latest/download/index.json into Repository Listing URL and click on Add
- Navigate to Projects and click on Manage Projects
- Find Third SDK and click on +
- Right click the avatar in the hierarchy window of a Unity scene
- Select Third -> Build Avatar
- After the build is finished, the output directory gets opened
The Third Avatar Bundle (.3b file) is saved to {Unity project path}/ThirdBuild/{Target platform}/{Game object name}.3b
A Third Avatar Bundle are zipped VRChat asset bundles with metadata.