https://github.com/irajsb/UE4_Assimp

Assimp mesh importer for Unreal Engine
https://github.com/irajsb/UE4_Assimp

assimp cpp fbx gamedev import mesh ue4 unreal unreal-engine unreal-engine-4

Last synced: 7 months ago
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Assimp mesh importer for Unreal Engine

• Host: GitHub
• URL: https://github.com/irajsb/UE4_Assimp
• Owner: irajsb
• License: mit
• Created: 2021-06-26T13:07:21.000Z (over 4 years ago)
• Default Branch: main
• Last Pushed: 2025-04-02T17:33:59.000Z (8 months ago)
• Last Synced: 2025-04-02T17:35:50.738Z (8 months ago)
• Topics: assimp, cpp, fbx, gamedev, import, mesh, ue4, unreal, unreal-engine, unreal-engine-4
• Language: C++
• Homepage:
• Size: 1.93 MB
• Stars: 153
• Watchers: 3
• Forks: 31
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-unreal - UEAssimp - Assimp Mesh Importer for UE (Plugin)

README

          
# Assimp Mesh Importer for Unreal Engine

![](https://img.shields.io/badge/Version-5.4.3-brightgreen)

![](https://img.shields.io/badge/Status-Under%20Development-red)

![](https://img.shields.io/badge/UE-5.0+-orange)

A powerful mesh importing solution for Unreal Engine that uses the Open Asset Import Library (Assimp) to support over 57 different file formats.

|             |  |

:-------------------------:|:-------------------------:

![](.github/Image1m.png)  |  ![](.github/Image2m.png)

## Features

### Core Functionality

- **Comprehensive Format Support**: Import from 57+ different 3D file formats 

- **Multiple Mesh Types**: Support for Static Mesh, Procedural Mesh, and Dynamic Mesh (UE 5.0+)

- **Asynchronous Loading**: Non-blocking imports to maintain performance

- **Proper Memory Management**: Full integration with Unreal Engine's garbage collection system

### Advanced Features

- **Mesh Instancing**: Optimized rendering for Static Meshes

- **Embedded Texture Import**: Automatically extract and import textures

- **Auto-generation**: Create missing normals, tangents, and other mesh data

- **Multiple Implementation Options**: Various approaches for maximum flexibility

## Getting Started

### Installation

For detailed usage examples and implementation guides, visit our [documentation](https://github.com/902D9/AssimpForUnreal/wiki).

## Mesh Type Comparison

| Mesh Type | Performance | Memory Usage | Dynamic Modification | Supported UE Version |

|-----------|-------------|--------------|----------------------|----------------------|

| Static Mesh | High | Medium | Limited | All |

| Procedural Mesh | Medium | High | Yes | All |

| Dynamic Mesh | Very High | Low | Yes | UE 5.0+ |

## Experimental Features

### Dynamic Mesh Support

Available in UE 5.0+, Dynamic Meshes offer significant performance improvements over both Static and Procedural Meshes.

- [Dynamic Mesh Documentation](https://github.com/902D9/AssimpForUnreal/wiki/Dynamic-Mesh)

### Asynchronous Importing

Use `AssimpImporter` for non-blocking, asynchronous imports:

- [Async Import Documentation](https://github.com/902D9/AssimpForUnreal/wiki/Assimp-Importer-(Async))

## Contributing

Contributions are welcome!

## License

This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.

## Acknowledgments

- [Assimp](https://github.com/assimp/assimp) - Open Asset Import Library

- All the contributors who have helped make this plugin better