Wrist index in data processing-'add wrist perturbation' part

[Zhengyu-Li]

Thanks for the great work. I have some questions about the codes.

1. In data processing part, I found you add some perturbation to joint #18(right elbow) and #19(left wrist)

   GRIP/data/process_data.py

   Line 336 in 64b160e

   motion_sbj_p_arms['body_pose'][:,3*18:3*19] += to_tensor(aug_rw_p)

   But according to the paper and code comments, here should be left and right elbow. Same problem for adding shoulder perturbation in next few lines. I follow the index in Grab code here https://github.com/otaheri/GRAB/blob/284cba757bd10364fd38eb883c33d4490c4d98f5/tools/utils.py#L166
2. From my understanding of your code, the sbj_output_p is for RNet training and sbj_output_p_arms is for ANet(if wrong please correct me...). But here you send sbj_output_p_arms params to sbj_output_p. Is this a typo?

   GRIP/data/process_data.py

   Line 356 in 64b160e

   sbj_output_p = sbj_m_h(**motion_sbj_p_arms, return_full_pose=True)

Looking forward to your reply. Thank you.