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AI Tech College · Virtual Campus
Release Notes
v2.0.0 Immersive AI Experience 2026-04-19
  • Real-time voice-to-voice AI — OpenAI Realtime API (WebRTC). Πάτα 📣 στο tutor chat, μιλάς ελεύθερα, ο AI ακούει + απαντάει με φωνή σε μερικές εκατοντάδες ms. Lip-sync συγχρονισμένο με voice amplitude.
  • 3D portal doorways — shader-based swirling plasma αντί για flat doors σε κάθε κτίριο. Pulse όταν πλησιάζεις.
  • Cinematic camera transitions — zoom+blur on enterBuilding + radial flash + portal slide-in.
  • Multi-professor Debate Arena — νέο /vr/debate.html. Διάλεξε 2-3 από 8 personas (Maria/Alex/Einstein/Feynman/Freud/Ada…), τύπος θέμα, round-robin debate με per-persona TTS voice variety, student interject με voice ή text.
  • Mind Palace — νέο /vr/palace.html. Spiraling pedestals με 3D tokens για κάθε learned concept. Color-coded by mastery. Guided tour με AI narration.
  • Interactive Concept Immersion — click hologram → "Enter the Concept" → camera scale-up 4.5×, narration, ESC/E to exit.
  • Procedural themed rooms — classroom αλλάζει decor βάσει course: ψυχολογία→couch+clock+portrait, biology→lab bench+microscope+petri dishes, physics→animated pendulum, programming→glowing monitors, math→floating formulas, history→pillar+bust, art→easel.
  • Volumetric god rays — shader shafts από κάθε παράθυρο με animated dust motes.
  • Expressive face rig — eyes που κάνουν pupil-tracking στον student, eyebrows που εκφράζουν emotion (happy/curious/concerned) auto-detected από AI reply.
  • Attention-aware tutor — webcam frame-variance detection. Αν απομακρυνθείς >8s → "Είσαι ακόμη εδώ;". Opt-in με 👁 button.
  • Crowd simulation — 16 anonymous NPCs περπατάνε στο campus με chat clusters (emoji bubbles).
  • Achievement fireworks — particle burst + gold banner on level-up ή νέο achievement. 270 particles με gravity + fade.
  • HUD dropdown menu — "✨ EXPERIENCES" card grid αντί για 4 ξεχωριστά buttons (Knowledge · Stage · Debate · Palace).
  • Rich Video Lesson player — 16:9 stage με animated AI avatar, synced captions από transcript, custom controls (play/pause/speed/mute), illustration background.
  • AI tutor chat στην αίθουσα — click πάνω στον καθηγητή ή στο label "Κάνε κλικ για να μιλήσεις" → chat panel με TTS reply + mic voice input (Speech Recognition).
Infrastructure:
  • SSO auto-create στο AdaptLearn middleware — νέοι students αυτόματα δημιουργούνται στο upstream DB.
  • PHP session lock fix (session_write_close()) — ξεμπλοκάρει concurrent requests για τον ίδιο user.
  • Cache-busting στο enterBuilding() — κάθε άνοιγμα κτιρίου παίρνει φρέσκο κώδικα.
  • Safari lookbehind regex fix (stage.html + classroom.html wbSplitIntoSentences).
  • Audio CORS fix (αφαιρέθηκε crossOrigin='anonymous' στο video player).
  • Left/right movement inversion fix στην αίθουσα (right vector signed correctly).
  • Classroom lighting rebalanced (walls #5a6070, bloom off, exposure 0.95, dedicated tutor spotlight).
  • Whiteboard replay timer leak fix.
  • Playwright QA test suite — .qa/run_tests.py, 39 checks που τρέχουν σε headless Chromium με real login flows.
v1.0.0 Foundation Release 2026-04-18
  • Core LMS — courses, modules, content (theory/exercise/video/quiz), progress tracking, enrollments.
  • 3D Campus — walkable space, 6 buildings, avatars (Xbot/Robot/CesiumMan/Fox/BrainStem), minimap, labels, multiplayer presence.
  • AI tutor chat — persona styles (Feynman/Socrates/ELI5/…), voice in + out, animated 2D SVG face, 3D cesiumman tutor στην αίθουσα.
  • AI illustrations (DALL-E 3) per lesson.
  • Personalized video lessons — GPT-4o script + OpenAI TTS audio.
  • Story Mode — interactive fiction με AI orchestrator.
  • Live Kahoot quiz state machine.
  • Knowledge Twin 3D galaxy at /vr/knowledge.html.
  • Stage Mode auditorium με bloom + personas.
  • Collaborative Whiteboard στη Digital Library με recording + replay.
  • WebRTC broadcast (teacher→students) με spatial audio + screen share.
  • Proximity P2P voice chat με stereo panner.
  • WebXR VR (controllers + teleport) και AR tabletop (hit-test).
  • Flashcards SM-2 spaced repetition.
  • Gamification — XP, levels, achievements, streaks, leaderboard, flow ring.
  • AI NPCs — Maria, Alex, Sofia, Nikos + famous (Einstein, Feynman, Freud, Ada Lovelace).
  • Gesture detection (webcam motion), Teacher dashboard, Announcements, Hall of Fame.
AI Tech College · Virtual Campus
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