Follow this unity tutorial using the https://github.com/Mohelm97/live-kit-track-processors-unity-webgl.git
link.
IEnumerator EnableCameraWithBlur ()
{
var setCameraEnabledPromise = room.LocalParticipant.SetCameraEnabled(true);
yield return setCameraEnabledPromise;
if (!setCameraEnabledPromise.IsError)
{
JSHandle backgroundBlur = TrackProcessors.BackgroundBlur(10);
setCameraEnabledPromise.ResolveValue.VideoTrack.SetProcessor(backgroundBlur);
}
}