Driver Leap

Self-sustainable fork of SteamVR driver for Leap Motion controller with updated vendor libraries

Installation (for users)

• Install latest Ultraleap Gemini
• Extract latest release archive to <SteamVR_folder>/drivers
• Add line in section steamvr of <Steam_folder>/config/steamvr.vrsettings file:

"activateMultipleDrivers": true,

Usage

Settings

Driver settings are configurated by editing resources/settings.xml. Available settings:

• trackingLevel: skeleton tracking style for OpenVR. Can be partial or full. partial by default.
• handsReset: marks controllers as out of range if hand for controller isn't detected by Leap Motion. false by default.
• useVelocity: enables velocity data from Leap Motion for hands. false by default.
• rootOffset: local position offset from HMD view point, values are in meters.
• rootAngle: local rotation offset for axis X, can be used with rootOffset to configure tracking for neck mounts, value is in radians.
• handsOffset: local position offset for controllers from theirs transformation point, X axis will be inverted for right hand, values are in meters.
• handsRotationOffset: local rotation offset for controllers from theirs transformation point, Y and Z axes will be inverted for right hand, values are in radians.

Settings can be reloaded at runtime from menu item by clicking on "Driver Leap Control" tray icon. All settings, except trackingLevel, are reloaded and applied.

Gestures

List of hands gestures that correspond to controller original input:

• Grip: bending of middle, ring and pinky fingers
• Trigger: bending of index finger

Notes

• CSFML graphics module is built from fork to address SteamVR OpenGL textures problems on AMD GPUs.
• If you see only green dots that represent tip of your index fingers, force leap_control to launch on dGPU through control panel of your GPU vendor.
• Tracking will be lost upon service shutdown/restart.
• Coordinate system used for offsets is right handed.