Open Asset Import Library

Open Asset Import Library (Assimp) is a cross-platform 3D model import library which aims to provide a common application programming interface (API) for different 3D asset file formats. Written in C++, it offers interfaces for both C and C++. Bindings to other languages (e.g., BlitzMax, C#, Python) are developed as part of the project or are available elsewhere.[1] Given the importance and the benefits of Assimp, a pure Java (/Kotlin) port is being developed here.

Open Asset Import Library
Developer(s)Alexander Gessler
Thomas Schulze
Kim Kulling, et al.
Stable release
5.1.4 / December 18, 2021 (2021-12-18)
Repository
Operating systemCross-platform
Type3D model import library
LicenseBSD
Websitewww.assimp.org

The imported data is provided in a straightforward, hierarchical data structure. Configurable post processing steps (i.e., normal and tangent generation, various optimizations) augment the feature set.[2]

Assimp currently supports 57 different file formats for reading, including COLLADA (.dae), 3DS, DirectX X, Wavefront OBJ and Blender 3D (.blend).[3] As of Version 3.0 Assimp also provides export functionality for some file formats.[4]

Projects using Assimp

Several open source projects use Assimp, such as MonoGame[5] and Urho3D.

Godot added Assimp in Godot 3.2,[6] but this was replaced in Godot 3.3 and later.[7][8]

See also

References
  1. "Docs". Archived from the original on 2018-03-10. Retrieved 2018-03-10.
  2. "Features".
  3. "Features".
  4. "Open Asset Import Library".
  5. "MonoGame.Dependencies/Assimp at master ยท MonoGame/MonoGame.Dependencies". GitHub.
  6. Lee, K. S. Ernest (iFire) (2018-11-19). "Add Open Asset Importer to Godot". Godot. Retrieved 2023-08-21. Supports various formats from Open Asset Import Library (assimp). The focus is on FBX and MMD.
  7. MacPherson, Gordon (2020-10-30). "FBX importer rewrite". Godot. Retrieved 2020-11-01. This is a complete rewrite of the importer. It will give more deterministic behavior. Over 1 year has gone into the development of this importer to remove the burden of the FBX SDK.
  8. Lee, K. S. Ernest (iFire) (2022-03-28). "Add fbx2gltf support for importing .fbx files". Godot. Retrieved 2023-08-21. Lets you drag or place .fbx files in the project folder and it will import the files. An editor setting sets the location of the fbx2gltf binary.


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