Synchronize Dual Hands for Physics-Based Dexterous Guitar Playing

This is the official implementation for Synchronize Dual Hands for Physics-Based Dexterous Guitar Playing. [Webpage] [arXiv] [Youtube] [SIGGRAPH Asia'24]

This implementation is based on

• AdaptNet: Policy Adaptation for Physics-Based Character Control [arXiv] [Youtube] [webpage]

• Composite Motion Learning with Task Control [arXiv] [Youtube] [webpage]

• A GAN-Like Approach for Physics-Based Imitation Learning and Interactive Character Control [arXiv] [Youtube] [webpage]

Copyright

We respect the copyright of all the pieces of music used in this research project. All the music notes and video demonstrations (containing audio) will be only used for educational and scientific research purposes. If you are the owner of a piece of music and do not want it appearing in this project, please let us know. We will kindly remove the related content. Thanks.

Citation

If you use the code or provided motions for your work, please consider citing our papers:

@article{guitar,
    author = {Xu, Pei and Wang, Ruocheng},
    title = {Synchronize Dual Hands for Physics-Based Dexterous Guitar Playing},
    booktitle = {SIGGRAPH Asia 2024 Conference Papers},
    series = {SA '24},
    articleno = {143},
    numpages = {11},
    publisher = {Association for Computing Machinery},
    address = {New York, NY, USA},
    year = {2024},
    doi = {10.1145/3680528.3687692}
}

We also refer to our work for piano playing FürElise: Capturing and Physically Synthesizing Hand Motions of Piano Performance [SIGGRAPH Asia'24].

Mocap Data

We provide the guitar-playing data that we captured from a professional guitarist. The mocap data were collected under the support from NOKOV. The dataset includes various motions of guitar-playing techniques (see dataset/README.md for details). In this project, however, we use only two short clips for policy training (see assets/motions).

Code Usage

Dependencies

• Pytorch 2.1
• Isaacgym Pr4

We recommend to install all the requirements through Conda by

$ conda create --name <env> --file requirements.txt -c pytorch -c conda-forge -c nvidia

IsaacGym Pr4 is available from the official site and can be installed through pip.

Policy Training

We adopt a two-phase training strategy to obtain a bimanual control policy by adapting two single-hand policies. To train single-hand policies, please run

# left-hand policy
$ python main.py cfg/left_demo.py --note <music_note_file> --ckpt <checkpoint_dir>

# right-hand policy
$ python main.py cfg/right.py --ckpt <checkpoint_dir>

For the right-hand policy, we perform training using randomly generated string playing patterns, and, therefore, do not need to specify the music note file. For the left-hand policy, we provide some guitar tabs in assets/notes, which can be used to train a policy for a specific song. We do not provide the music track collection that were used for the left hand policy training, as described in the paper, due to copyright reasons. A policy supporting mutiple music tracks can be obtained by putting multiple music tracks into one note file for training.

To train two-hand policies, pleas run

$ python main.py cfg/two_demo.py --note <music_note_file> \
    --left <checkpoint_dir_or_file_of_the_pretrained_left_hand_policy_> \
    --right <checkpoint_dir_or_file_of_the_pretrained_right_hand_policy> \
    --ckpt <checkpoint_dir>

Evaluation

# left-hand policy
$ python main.py cfg/left_demo.py> --note <music_note_file> --ckpt <checkpoint_dir_or_file> --test

# right-hand policy
$ python main.py cfg/right.py --note <music_note_file> --ckpt <checkpoint_dir_or_file> --test

# two-hand policy
$ python main.py cfg/two_demo.py --note <music_note_file> --ckpt <checkpoint_dir_or_file> --test

We provide pre-trained bimanual control policies in pretrained folder and the demo music notes in assets/notes. We also provide the pre-trained right-hand plicy in pretrained folder.

Please visit our webpage for animated results of the pre-trained models.