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VBSDNFusion is the official add-on application programming interface (API) for VBS. It is available only to commercial customers as a one-year renewable subscription product. Military, government and academic customers can access Fusion through purchase of a VBSFusion Seat License.

It gives you direct access to the VBS engine, allowing you to develop new applications or plug-ins which leverage the power, graphics and simulation engine of VBS. VBSDNFusion enables you to create a customized training experience for the end user. VBSDNFusion is ideal for integrating VBS with external hardware and software systems, enhancing fidelity of the simulation, providing augmented displays within the virtual environment, and enhancing the user experience. VBSDN Fusion is the fastest, most powerful, and best supported tool for building on the VBS platform.

The VBSDNFusion API is a collection of C++ data and utility classes which can be used to load and manipulate the state of objects within the VBS simulation environment. VBSDNFusion provides direct access to the VBS engine. It provides an API which can be used to programmatically access and modify the VBS simulation and the objects within it, marking VBS as a true simulation platform. Designed in C++, VBS Fusion removes the requirement for developers to learn the VBS scripting language.

VBSDNFusion offers significant advantages over the VBS Application Scripting Interface (ASI):

  • Direct access to the VBS core resulting in significant performance improvements over the ASI Complete Object-Oriented programming framework, making it easier to build and maintain bug-free code
  • Built-in logging tools to make testing and debugging of code easier and more efficient
  • Rich set of functionality including support for heads up display (HUD) and the ability to draw overlays over the VBS display
  • Ability to link to external C++ libraries
  • Write-once, run anywhere - once a Fusion plug-in is written and packaged it can be run on any other VBS machine


VBSDNFusion is provided with extensive documentation of header files and includes examples of plug-ins. Each initial VBSDNFusion license purchase includes one year of the VBSDNFusion Software Upgrades and Support Plan. Additional years of renewal are availabe at a 25% discount.

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