HaRT - The Virtual Reality Hand Redirection Toolkit

Easy Integration of Hand Redirection into Unity Projects

Past research has proposed various hand redirection techniques for virtual reality (VR). Such techniques modify a user's hand movements and have been successfully used to enhance haptics and 3D user interfaces. Up to now, however, no unified framework existed that implements previously proposed techniques such as body warping, world warping, and hybrid methods.

In this work, we present the Virtual Reality Hand Redirection Toolkit (HaRT), an open-source framework developed for the Unity engine. The toolkit aims to support both novice and expert VR researchers and practitioners in implementing and evaluating hand redirection techniques.

The toolkit provides implementations of popular redirection algorithms and exposes a modular class hierarchy for easy integration of new approaches. Moreover, simulation, logging, and visualization features allow users of the toolkit to analyze hand redirection setups with minimal technical effort. In our Late-Breaking Work paper published at CHI 2021 we present the architecture of the toolkit along with the results of a qualitative expert study.

The toolkit was created in the context of the Bachelor's Thesis by Hannah Kriegler and is freely available in our GitHub repository for anyone interested in using it.
To get started, just check out the latest release of the toolkit and the online wiki (including the tutorials).
We welcome any contributions and feedback!

HaRT - The Virtual Reality Hand Redirection Toolkit
André Zenner, Hannah Maria Kriegler, Antonio Krüger
Extended Abstracts of the 2021 CHI Conference on Human Factors in Computing Systems (CHI EA '21)
DOI: https://doi.org/10.1145/3411763.3451814
PDF (Full Paper)