Bohemia Interactive Simulations (BISim) received funding from an Epic Games MegaGrant to extend the VBS World Server (VWS) to support Unreal Engine.

“BISim’s VBS World Server (VWS) is a highly flexible terrain server and geospatial data repository capable of storing and streaming terrain data such as elevation and features such as buildings and roads to multiple simulation and game engines,” said Mark Dzulko, BISim’s Technology Advisor to the Board. “The Epic MegaGrant has offered us the opportunity to further demonstrate the flexibility and openness of BISim technology and build a capability that supports Unreal developers integrating with VBS.”


Events Re-imagined! Join us at Global Airline Training & Simulation - Virtual this November 10-12 for networking, conference and trade show in our largest and most comprehensive global event this year! Find out more here.


VWS supports both dynamic terrain deformation and procedural enhancement for BISim’s own run times, VBS4 and VBS Blue IG. VWS also supports terrain streaming to Cesium web clients using open standard (OGC) web protocols.

VWS is underpinned by the VBS Blue terrain ingestion pipeline, which is a runtime-agnostic capability to procedurally increase the fidelity of 3D terrains. The pipeline is a flexible and open technology that places vegetation, buildings and other 3D objects on terrains according to defined rulesets, as well as modifying terrain data formats like elevation data and imagery based upon other inputs (e.g., roads cutting into hillsides or explosions deforming terrain). This capability is usually a feature of a specific game engine; however, BISim has ported this capability into VWS to support any game engine.

The MegaGrant funded the development of a plugin that enables direct communication between VWS and Unreal Engine. The VBS World Server streams whole-Earth terrain layers to the Unreal Engine, correlated with other VWS-enabled applications including VBS4. This benefits Unreal's global community of developers by allowing them to integrate with technology that is being leveraged by military organizations including U.S. Marine Corps and U.S. Army.