Apparance Procedural Generation System

Apparance is a procedural generation system for interactive authoring of dynamic parametric objects in editor and at runtime.

  • Supported Platforms
  • Supported Engine Versions
    4.25 - 4.27, 5.0 - 5.4
  • 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.

Promotional VideoWebsite Support Forums

⭐Try the non-commercial version for FREE! on

Apparance is a procedural generation plug-in designed to allow the interactive visual authoring of detailed and expansive 3D worlds. A play-space for procedural logic and their use in the generation of environments and objects. A fusion of programming and modelling that gives extensive control over your applications procedural elements.

Watch the Promotional Video for a full rundown of the capabilities of Apparance.

The Apparance project is inspired by the flexibility of non-linear and node-based editing systems used in film, television, and games. The amazing compression achieved by the demo-scene using mathematics and procedural generation points towards the vast possibilities of large scale procedurally built game worlds.

Visit to find out more and see showcase projects using Apparance.

A non-commercial demo/trial version is also available, see the Apparance Products Page for details.

Build Smart Objects
  • Build smart procedural objects out of your assets.
  • Drive placement of meshes, blueprints, components and their properties.
  • Parameterise in any way you need to drive generation logic.
  • Experiment with procedural generation of meshes* too.
Add Variety, Save Time
  • Increase variety in your game with unique generated assets
  • Save time and resources populating the spaces in your world
  • Build re-usable and modular objects
Fully Interactive Editing
  • Enjoy fully interactive editing of parameters, graph structure, and all internal values.
  • Scrub through the parameter space to find the results you are after.
  • Rapidly test thousands of combinations as you work.
Rapid Iteration
  • Rapidly iterate on your designs, play with graph configuration, explore your parameter space.
  • Drag-and-drop connections and procedures to experiment.
High Speed Run-time Generation
  • Fully run-time multi-threaded background generation
  • Mesh* accumulation and instanced rendering support
  • Allows for endless unique creations and experiences
Node Based Editor
  • Use node based scripting to author* your procedural logic.
  • Create powerful hierarchies of procedures yet manage graph complexity by building up a library of re-usable parts.
  • It's procedures all the way down until you reach a fundamental operator that does the work.
Comprehensive Documentation
  • Detailed documentation available online for plugin and editor
  • Directory of fundamental procedural operators
  • Support forums for questions, reporting, and discussion
  • Mesh generation is currently an experimental feature, to be expanded in future release.
  • Procedures are authored live within a separate standalone editor application that the plugin downloads automatically on first use.
  • This is the professional commercial version of Apparance for use in paid-for products and fully funded projects. To try out the plugin or use in other scenarios (e.g. education, game-jams, evaluation, or non-profit projects) you can purchase the non-commercial demo version for a reduced fee, see the Apparance Products Page for details.

Technical Details

Code Modules: Runtime, Scripting, and Editor modules.

Blueprint support: 30+ blueprint functions and nodes to provide detailed control of procedural objects.

C++ Classes: Apparance Entity Actor for placement and management of placed/generated 3D content.

Unreal Versions: 5.0-5.4 (with legacy support back to 4.25)

Development Platforms: Windows 64

Target Build Platforms: Windows 64 (more available on request, at an additional fee per-project per-platform)

Website:, and Support Forums

Documentation: Plugin, Editor, Core Concepts

Example Project: Apparance Unreal Examples

Video Examples: Medieval Building Timelapse & Dungeon generation and run-through