Character Controllers using Motion VAEs

Overview

Character Controllers using Motion VAEs

This repo is the codebase for the SIGGRAPH 2020 paper with the title above. Please find the paper and demo at our project website https://www.cs.ubc.ca/~hyuling/projects/mvae/.

Quick Start

This library should run on Linux, Mac, or Windows.

Install Requirements

# TODO: Create and activate virtual env

cd MotionVAEs
pip install -r requirements
NOTE: installing pybullet requires Visual C++ 14 or higher. You can get it from here: https://visualstudio.microsoft.com/visual-cpp-build-tools/

Run Pretrained Models

Run pretrained models using the play scripts. The results are rendered in PyBullet. Use mouse to control camera. Hit r reset task and g for additional controls.

cd vae_motion

# Random Walk
python play_mvae.py --vae models/posevae_c1_e6_l32.pt

# Control Tasks: {Target, Joystick, PathFollow, HumanMaze}Env-v0
python play_controller.py --dir models --env TargetEnv-v0

Train from Scratch

Train models from scratch using train scripts.

The train_mvae.py script assumes the mocap data to be at environments/mocap.npz. The original training data is not included in this repo; but can be easily extracted from other public datasets. Please refer to our paper for more detail on the input format. All training parameters can be set inside main() in the code.

Use train_controller.py to train controllers on top of trained MVAE models. The trained model path, control task, and learning hyperparameters can be set inside main() in the code. The task names follow the same convention as above, e.g. TargetEnv-v0, JoystickEnv-v0, and so on.

Citation

Please cite the following paper if you find our work useful.

@article{ling2020character,
  author    = {Ling, Hung Yu and Zinno, Fabio and Cheng, George and van de Panne, Michiel},
  title     = {Character Controllers Using Motion VAEs},
  year      = {2020},
  publisher = {Association for Computing Machinery},
  volume    = {39},
  number    = {4},
  journal   = {ACM Trans. Graph.}
}
Owner
Electronic Arts
Electronic Arts
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