A .NET Wrapper for the Open Asset Import (Assimp) library. The library is able to import dozens of different 3D model formats (e.g. OBJ, FBX, GLTF, Collada) and export to several formats (e.g. OBJ, GLTF, Collada). Releases target the corresponding version of the native library.
Get Started
$ dotnet add package AssimpNetterReadme
The latest release can be downloaded via NuGet.
Introduction
This is a maintained, modern fork of AssimpNet, the cross-platform .NET wrapper for the Open Asset Import Library (otherwise known as Assimp), which is a 3D model import-export library. The primary motivation is for this library to power (offline) content pipelines to import and process 3D models into your game engine's internal format, although the wrapper can be used at runtime to enable your users to import custom content. Please see the Assimp website for a full list of supported formats and features. Each version of the managed wrapper tries to maintain parity with the features of the native version.
P/Invoke is used to communicate with the C-API of the native library. The managed assembly is compiled as AnyCpu and the native binaries are loaded dynamically for either 32 or 64 bit x86, as well as ARM64 applications.
The library is split between two parts, a low level and a high level. The intent is to give as much freedom as possible to the developer to work with the native library from managed code.
Low level
- Native methods are exposed via the AssimpLibrary singleton.
- Structures corresponding to unmanaged structures are prefixed with the name Ai and generally contain IntPtrs to the unmanaged data.
- Located in the namespace.