Haptics Development Kit
Downloads
Enable hand tracking on your PC
Create and customize mid-air haptic sensations
Integrate haptics into your own applications
Enable hand tracking on your PC
Create and customize mid-air haptic sensations
Integrate haptics into your own applications
Ultraleap Gemini is our fifth generation hand tracking platform with the most robust and flexible hand tracking ever. It matches the position of your virtual hands to your real ones more closely than ever before. It’s also more flexible across different platforms and camera hardware”
Ultraleap Gemini highlights include:
- Improved initialization – hands are tracked as soon as they enter the field of view
- Improved performance across a wide range of hand sizes
- Robust interaction with both hands together
- Works in challenging environments
- Flexible integration options
- Superior pose accuracy
Windows installer
Tracking Service 5.16.0
– Updated Leap 2 hand tracking models for all tracking modes, with improved robustness, finger fidelity and tracking range.
Control Panel 3.3.0
– USB hub/low device framerate warning
– Enabled screentop for LMC2
OpenXR API Layer 1.6.1
Added
– Support for initialising the layer through XR_KHR_loader_init_android on Android platforms.
– Support for Android platforms of API version greater than 29 on OpenXR loaders newer than 1.0.28.
Fixed
– Fixed inclusion of OpenXR manifest asset in embedded layer AAR.
– Fixed an issue where controller switching would fail due to stale cached state.
– Fixed a bug where controller switching wasn’t working correctly with MRTK3.
– Fixed an issue where session based state wasn’t correctly clearing on xrDestroySession.
– Fixed an issue where hands wouldn’t reappear on subsequent play sessions after the first in Unreal.
– Fixed configuration variables state going stale by reloading config variables on creation of an XrInstance.
Known Issues
– Aim ray visuals don’t work correctly when using controller with Hand Tracking enabled in MRTK3.
– xrLocateSpace sometimes returns XR_ERROR_RUNTIME_FAILURE with Pico Streaming Assistant and SteamVR.
– Applications on Android API versions > 29 crash on resume from sleep.
Ultraleap Gemini hand tracking software is subject to the SDK agreement and End User Licence Agreement. By downloading this software you are agreeing to these terms.
This license allows:
– Personal, non-commercial use
– Consumer game development
– Technical evaluation
For any other use, including commercial use, please contact us

Sensation Designer is a software tool that enables you to design and customize haptic sensations that can be felt in mid-air. It combines the power of ultrasonic haptic technology, gesture control and intuitive design tools to create unique haptic feedback sensations that will enhance your interactive experiences.
Key Benefits:
- Interaction library to inspire and guide you
- User-friendly Haptics design tools
- Experience and get creative with mid-air haptics in minutes
First release of Sensation Designer.
Note: Sensation Designer is currently only compatibility with the HDK-REC192 Haptics Development Kit haptics hardware.
- Personal, non-commercial use
- Technical evaluation

Integrate haptic feedback into your own applications using the Haptics Software Development Kit. Using the low-level SDK you can directly control your haptics device from your own applications and experiences. With support and examples for the C programming language, it’s ideal for developers who want to integrate haptic sensations natively into their codebase.
Key features:
- Create haptic sensations from your code
- Change and control haptic parameters
- Playback haptic sensations exported from Sensation Designer
- Integrate into applications using the C API and sample code
First release of Haptics SDK v4.
Create the sensation of touch in mid-air by using the new, ’embedded haptics’ protocol. Choose and develop sensations to play back on the device from your own applications and experiences.
Note: Haptics SDK v4 is currently only suitable for use with the HDK-REC192 Haptics Development Kit hardware.
- Personal, non-commercial use
- Technical evaluation
