BobbleVR — Head-Tracked YouTube VR Viewer

BobbleVR turns your webcam into a head tracker for YouTube VR videos. Just click the icon on any YouTube 360° or VR180 video, and your head movements control where you look — no VR headset required. HOW IT WORKS • Click the BobbleVR icon while a YouTube VR video is playing • Allow camera access for face tracking • Move your head to look around the scene • Lean in to zoom, scroll wheel for manual zoom • Press SHIFT to recenter your view SUPPORTED FORMATS • YouTube EAC 360° (mono and 3D stereo SBS/TB) • Equirectangular 360° (mono, side-by-side, top-bottom) • VR180 (mono, side-by-side, top-bottom) • Flat video mode for any video FORMAT AUTO-DETECTION BobbleVR automatically detects the video projection format from YouTube metadata. If auto-detection fails, press - (flat mode) to inspect the raw video frame, then use number keys 1-9 to quickly switch between formats until the image looks correct. KEYBOARD SHORTCUTS 1-9: Switch video format (EAC, 360°, VR180, etc.) -: Flat video mode =: Retry auto-detection SHIFT: Recenter view H: Hide/show controls ESC: Close viewer Arrow keys: Seek 5 seconds Scroll wheel: Zoom in/out PRIVACY • Camera data is processed entirely on-device using MediaPipe Face Landmarker • Video frames are never recorded, stored, or transmitted • One-time download of face tracking model from Google CDN, then cached locally • No ads, analytics, or data collection of any kind TECHNICAL DETAILS • Uses Three.js for real-time 3D rendering • MediaPipe Face Landmarker for precise head pose estimation • Exponential smoothing for fluid camera movement • Chrome Manifest V3 extension Open source (MIT): https://github.com/knoguchi/bobblevr