Reset Rest State

This operator is only for advanced skeleton only.

Reset Rest State

Reset selected bones to its rest position and rotation.

Initial Rotation

Here is what Lost Saga skeleton initial position/rotation looked like.

It doesn't resemble anything like humanoid at all, the humanoid form is actually stored inside LocalTMqRot or kObjectMatrix. However, this initial rotation is still needed because animation quaternion calculate their rotation from this initial position, instead of rest rotation from humanoid