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Vitruvio CityEngine Plugin (free for non-commercial use)

Esri - Feb 12, 2021
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Vitruvio brings the procedural power of ArcGIS CityEngine to Unreal Engine and allows generating vast cities and complex buildings within seconds.

  • Supported Platforms
  • Supported Engine Versions
  • Download Type
    Engine Plugin
    This product contains a code plugin, complete with pre-built binaries and all its source code that integrates with Unreal Engine, which can be installed to an engine version of your choice then enabled on a per-project basis.

Vitruvio brings ArcGIS CityEngine’s procedural modeling power to Unreal Engine. It enables generating procedural buildings using CityEngine's generative runtime and shape grammars. Generated buildings remain procedural at all times. Attributes such as height, style or appearance can be modified in real-time to generate new building variations. Vitruvio can also be used in a packaged product and buildings can be generated dynamically at runtime.

Watch the trailer on YouTube.

Homepage & Example Projects


Vitruvio on Github


Vitruvio is free for personal, educational, and non-commercial use. Commercial use requires at least one commercial license of the latest CityEngine version installed in the organization. Redistribution or web service offerings are not allowed unless expressly permitted.

Vitruvio is under the same license as the included CityEngine SDK.

All content in the "Examples" directory/section is licensed under the APACHE 2.0 license. You may obtain a copy of this license at

For questions or enquiries regarding licensing, please contact

Technical Details

Vitruvio uses CityEngine's Procedural Runtime (PRT) to generate buildings and cities. As input it takes a rule package (RPK), an initial shape and a set of attributes.

The generation process starts with the initial shape (which can be any Unreal Static Mesh or Spline) from which shape grammar rules are expanded. The shape grammar rules, together with all necessary assets, are bundled in RPKs which can be exported from ArcGIS CityEngine and imported into your Unreal Engine project. The attributes are parameters that control shape generation. They can be changed in the Unreal Editor or dynamically at runtime.


  • Vitruvio Component and Actor which enable generating procedural buildings.
  • Details panel UI to modify CityEngine rule attributes.
  • Introduces RPKs (Rule Package) asset types which allows importing and bundling of CityEngine RPK files.
  • C++ and Blueprint API for customization and advanced use.

Code Modules:

  • Vitruvio (Runtime)
  • VitruvioEditor (Editor)

Number of C++ Classes: 42

Supported Development Platforms: Windows 64-bit

Supported Target Build Platforms: Windows 64-bit