SmartParking: Open Geospatial AI Digital Twin across 14 Global Hubs (UE 5.8 + RealityScan + Twinmotion)

Community Showcase Architecture
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Hi everyone in the Unreal & Epic Developer Community!

We are excited to share SmartParking, an open-architecture smart city mobility and digital twin ecosystem built from the ground up using Epic Games’ 3D technology stack.

Key Technical Achievements:

  • Epic Games RealityScan: High-overlap 360° LiDAR-RGB photogrammetry sets capturing physical parking facilities and barrier entrance mechanics into sub-millimeter Nanite meshes (LOD0: 2M tris, LOD1: 500K tris, LOD2: 100K tris).
  • RealityCapture CLI: Automated batch processing via .rccmd command scripts with 4K PBR textures.
  • Twinmotion 2026.2 Studio: Live Datasmith synchronization tracking over 28,200 parking bays across 14 international hubs (including Singapore Changi, Tokyo Haneda, London Heathrow T5, New York JFK T4, and Dubai International T3) with real-time 60 FPS SignalR occupancy telemetry.
  • Unreal Engine 5.8 & Cesium for Unreal: Georeferenced on WGS84 ECEF (EPSG:4978) coordinating with Cesium 3D Tiles and WebRTC Pixel Streaming to in-car infotainment screens (Android Automotive OS & Apple CarPlay).

We are releasing our RealityScan configs and .rccmd automation scripts under the MIT license, and packaging our Smart City Mobility Plugin for the Fab / Unreal Engine Marketplace.

We would love your feedback and thoughts!