Three.js source-promotion lab

VR hand input · press button

Starting…Creating WebGL2 renderer and hand-input contract.

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Source-shaped actions

Desktop fingertip mirror

The sliders place two labeled fingertip proxies near the console. Native headset hand poses remain a separate capability boundary.

hand 1 x-0.15

hand 1 y1.12

hand 1 z-0.30

hand 2 x0.05

hand 2 y1.12

hand 2 z-0.30

Runtime contract

Backend—

Buttons—

States—

Hands—

Controllers—

Feature—

Torus color—

Press/release0 / 0

Last action—

Frames0

XR / sample— · —

RUNNING · State path: resting / pressed / fully_pressed / recovering.

Evidence boundary

Pinned official source: webxr_vr_handinput_pressbutton.html. This route preserves OculusHandModel, required hand-tracking, fingertip intersection, recovery, Timer, and button actions. Browser QA proves the WebGL2 desktop mirror and cleanup path; native hand joints, headset audio, session negotiation, and whole-example fidelity still require separate device evidence.