Hand Physics Toolkit (HPTK) is a toolkit to implement hand-driven interactions in a modular and scalable way. Platform-independent. Input-independent. Scale-independent. Can be combined with MRTK-Quest for UI interactions.

A ready-to-go project is available at HPTK-Sample.

Main features

• Data model to access parts, components or calculated values with very little code
• Code architecture based on MVC-like modules. Support to custom modules
• Platform-independent. Tested on VR/AR/non-XR applications
• Input-independent. Use hand tracking or controllers
• Pupettering for any avatar or body structure
• Scale-independent. Valid for any hand size
• Realistic configurable hand physics
• Define strategies to deal with tracking loss
• Physics-based hover/touch/grab detection
• Tracking noise smoothing

Documentation

Some documentation entries:

• Home
• Setup
• FAQs

Supported versions

• Unity 2022
• Unity 2019-2021 (Legacy)

Supported input

Hand tracking

• Meta Quest - Android
• Leap Motion - Standalone

Controllers

• Oculus Touch
• WMR
• Vive
• OpenVR

Supported render pipelines

• Universal Render Pipeline (URP)
• Standard RP

Getting started with HPTK (Oculus Quest)

1. Obtain HPTK
2. Change ProjectSettings & BuildSettings
3. Import the built-in integration packge (if needed)
4. Drag & drop the default setup to your scene
5. Build and test

Check documentation for a detailed step-by-step guide.

Author

Jorge Juan González

LinkedIn - Twitter - GitHub

Acknowledgements

Oxters Wyzgowski - GitHub - Twitter

Michael Stevenson - GitHub

Andreea Muresan, Jess Mcintosh, and Kasper Hornbæk. 2023. Using Feedforward to Reveal Interaction Possibilities in Virtual Reality. ACM Trans. Comput.-Hum. Interact. 30, 6, Article 82 (December 2023), 47 pages. https://doi.org/10.1145/3603623

Nasim, K, Kim, YJ. Physics-based assistive grasping for robust object manipulation in virtual reality. Comput Anim Virtual Worlds. 2018; 29:e1820. https://doi.org/10.1002/cav.1820

Linn, Allison. Talking with your hands: How Microsoft researchers are moving beyond keyboard and mouse. The AI Blog. Microsoft. 2016 https://blogs.microsoft.com/

License

MIT