XR · const

HAND_JOINTS

Every joint WebXR defines, in the order this engine indexes them.

Explained in XR.

const HAND_JOINTS: readonly ['wrist', 'thumb-metacarpal', 'thumb-phalanx-proximal', 'thumb-phalanx-distal', 'thumb-tip', 'index-finger-metacarpal', 'index-finger-phalanx-proximal', 'index-finger-phalanx-intermediate', 'index-finger-phalanx-distal', 'index-finger-tip', 'middle-finger-metacarpal', 'middle-finger-phalanx-proximal', 'middle-finger-phalanx-intermediate', 'middle-finger-phalanx-distal', 'middle-finger-tip', 'ring-finger-metacarpal', 'ring-finger-phalanx-proximal', 'ring-finger-phalanx-intermediate', 'ring-finger-phalanx-distal', 'ring-finger-tip', 'pinky-finger-metacarpal', 'pinky-finger-phalanx-proximal', 'pinky-finger-phalanx-intermediate', 'pinky-finger-phalanx-distal', 'pinky-finger-tip']

import { HAND_JOINTS } from '@driftengine/xr';

In depth

Wrist first, then each finger from its base outward, which is the order the specification lists them in and the order a reader expects. Never reordered: an index is written into recordings and compared across runs, so moving one would change what a stored hand means.