Optional feasibility spike — not production

WebXR contract demo

Validates shared backend items[] overlays only. Native Quest client remains the MVP path for reliable passthrough capture.

Backend base URL (optional override)

Default: same-origin /api/v1/analyze-scene and /health (no mixed content on HTTPS). Deploy serves the spike and proxies /api/* to the backend. Local dev: npm run dev proxies to 127.0.0.1:8081. Only set a full URL to override (must be HTTPS when this page is HTTPS).

Diagnostics

Add ?debug=1 to the URL for auto-run. After a failure, tap Send logs to server — logs appear in journalctl -u vr-backend.

Status

Spike scope — not production capture

Passthrough capture is not reliable in Quest Browser: compositor pixels are not exposed via standard WebXR. MediaDevices/IWSDK paths are best-effort only.
Response rendering uses backend items[] normalized bboxes — a contract demo, not pose-locked MR overlays.
Camera pose, intrinsics, and headset-to-camera extrinsics are unavailable or unverified on device.
HTTPS (or a trusted tunnel) is required for WebXR on Quest; HTTP dev mode is desktop-only and will show a warning above.