API reference
Constants Class
A set of hand skeleton constants used globally throughout Interaction SDK.
Fields
const int NUM_HAND_JOINTS[Get]
The number of joints in the hand skeleton.
const int NUM_FINGERS[Get]
The number of fingers in the hand skeleton.
Public Statics
static readonly Vector3 RightProximal[Get]
The local proximal (toward-palm) axis of a Right hand joint.
static readonly Vector3 RightDistal[Get]
The local distal (away-from-palm) axis of a Right hand joint.
static readonly Vector3 RightPinkySide[Get]
The local to-pinky axis of a Right hand joint.
static readonly Vector3 RightThumbSide[Get]
The local to-thumb axis of a Right hand joint.
static readonly Vector3 RightPalmar[Get]
The local palmar (palm facing) axis of a Right hand joint.
static readonly Vector3 RightDorsal[Get]
The local dorsal (back-of-hand facing) axis of a Right hand joint.
static readonly Vector3 LeftProximal[Get]
The local proximal (toward-palm) axis of a Left hand joint.
static readonly Vector3 LeftDistal[Get]
The local distal (away-from-palm) axis of a Left hand joint.
static readonly Vector3 LeftPinkySide[Get]
The local to-pinky axis of a Left hand joint.
static readonly Vector3 LeftThumbSide[Get]
The local to-thumb axis of a Left hand joint.
static readonly Vector3 LeftPalmar[Get]
The local palmar (palm facing) axis of a Left hand joint.
static readonly Vector3 LeftDorsal[Get]
The local dorsal (back-of-hand facing) axis of a Left hand joint.
static readonly Quaternion LeftRootRotation[Get]
The rotation of the left hand's root bone.
This is unique to the hand skeleton, as its left wrist orientation is a mirror of the right wrist.
Did you find this page helpful?
Virtual reality / Meta Horizon
Support and legal
Virtual reality / Meta Horizon
Support and legal
Virtual reality / Meta Horizon
Support and legal
English (US)
© 2026 Meta