WebXR Get Hand Finger Tip

Hi there, I am developing a haptics gloves utilizing webxr. I want to get a signal whenever the tip of the hand intersects with another obect. Can I create a bounding box on the tip of the finger? Do you guys know any good tutorial regarding webxr.


Maybe this document may give some pointers?

WebXR Hand Input Module - Level 1

The “tip” skeleton joints SHOULD have an appropriate nonzero radius so that collisions with the fingertip may work.

Skeleton joint name Index
thumb-tip 4
index-finger-tip 9
middle-finger-tip 14
ring-finger-tip 19
pinky-finger-tip 24

When you work with Three.js, is the skeletal system of the hand available?