Double-precision coordinates
Engine-wide 64-bit large-world coordinates keep sub-millimeter accuracy at 100 km — no distant jitter.
Rebuilding Virtual Worlds in Double Precision
A closed-source commercial real-time 3D engine built on open-source O3DE. On Atom, modular Gems and PhysX 5 we add in-house large-world, AI, simulation and cloud-streaming stacks — for open worlds, digital twins, industrial simulation and cloud rendering.
Highlights
Core features
World Streaming
Automatic cell streaming, HLOD proxies, content layers and multiplayer sync for huge open worlds and city-scale scenes.
PolyTerrain mesh terrain
True 3D mesh terrain with a non-destructive modifier stack — cliffs, caves, GIS import and bound PCG graphs.
Water
First-class rivers, lakes and oceans: waves, refraction, shore/flow bake, buoyancy and surface queries.
Cesium 3D Tiles
Built-in global geospatial streaming integrated with double-precision LargeWorld — matches or exceeds Cesium for Unreal in Dawn workflows.
HTN AI system
Hierarchical Task Network planner plus a visual node editor so designers can author agent behavior.
Navigation3D
Sparse-voxel volumetric navigation for flight, underwater and mixed ground–air pathfinding.
PhysX Vehicle
Raycast wheeled and tracked vehicles on PhysX 5, with templates, drive input and tuning.
Dawn Stream
Cloud rendering with interactive browser delivery (MVP) — one GPU host and one web link.
ClusterDisplay
Multi-node synchronized rendering (MVP): viewport tiling, off-axis projection and frame sync for CAVE, wraparound displays and cockpits.
Commercial delivery & asset protection
Closed-source SDK delivery, full-path AES-256 Pak encryption, and Simplified Chinese editor localization.
Modular Gem architecture
Continuously synced with open-source O3DE (Atom / PhysX 5) — modular, deeply customizable, with commercial licensing and support.
Specifications
| Coordinate precision | 64-bit double-precision world coordinates (sub-mm at 100 km) |
|---|---|
| Large world | World Streaming (HLOD, content layers, multiplayer sync) |
| Terrain | PolyTerrain 3D mesh terrain (modifier stack, bound PCG graphs) |
| Water | Rivers / lakes / oceans (waves, refraction, buoyancy, surface queries) |
| Geospatial | Built-in Cesium 3D Tiles (Experimental, LargeWorld-integrated) |
| AI system | HTN planner + visual editor |
| Navigation | Navigation3D sparse-voxel volumetric / underwater navigation |
| Vehicles | PhysX Vehicle (wheeled / tracked, PhysX 5) |
| Cloud streaming | Dawn Stream (interactive browser streaming, MVP) |
| Cluster display | ClusterDisplay multi-node synchronized rendering (MVP) |
| Asset protection | Full-path AES-256 Pak encryption |
| Foundation | On open-source O3DE (Atom / Gem / PhysX 5); commercial SDK + Simplified Chinese editor |
| Platforms | Windows / Linux; domestic OS (OpenHarmony / UOS / Kylin) on roadmap |
Media
Gallery
Use cases
Dawn Engine fits scenarios that demand coordinate precision, large scenes, simulation and commercial delivery:
- Open-world games: World Streaming plus PolyTerrain true-3D terrain and Water, with no jitter at distance.
- Digital twins: city- and campus-scale twin visualization with built-in Cesium 3D Tiles, operable in the browser via Dawn Stream.
- Industrial simulation & training: PhysX Vehicle and ClusterDisplay for cockpits, CAVE and exhibition venues.
- XR applications: stable spatial precision for immersive experiences.
Roadmap capabilities
The following capabilities have completed system design and advance on the product roadmap (communication only — not contractual delivery commitments):
- Weather: continuous weather parameters, regional volumes, precipitation / surface effects and aviation atmosphere sampling.
- Flight: JSBSim-backed fixed-wing 6-DoF dynamics, wired to large-world transforms and weather.
- DataLink: digital-twin data layer — real-time IoT ingest, video fusion and 3D visualization orchestration.
- SensorSim: sensor and robotics simulation — camera/lidar outputs, ROS 2 bridging and related tracks.
- ContentTools: open-world content tools — spline roads/pipelines, plus crowd and volumetric sky follow-ons.
- General-purpose PCG Gem: PolyTerrain-bound PCG graphs are available; a standalone PCG Gem remains planned.
- Domestic OS platforms: OpenHarmony, UOS and Kylin for Chinese distribution and Xinchuang requirements.
Dawn Engine is built on the open-source Open 3D Engine (O3DE). “O3DE” and “Open 3D Engine” are trademarks of the Open 3D Foundation; references here are for technical attribution only and do not imply any endorsement, sponsorship, or affiliation. Features and specifications are subject to the actual product release.