Open Asset Import Library

Open Asset Import Library (Short name: Assimp) is a free library to import various well-known 3D model formats into applications. The library has been designed for maximum stability and efficiency. Written in C++, it is licensed under the BSD license. The API is provided for both C and C++. Wrappers for Python and D are available, more bindings are in development.

The library loads models in a straightforward in-memory format that can be easily read and processed by applications. Various post processing steps can be executed on the imported data to optimize it for a particular purpose.

11.24.09: We changed the orientation of our quaternions to the most common convention to avoid confusion. However, if you're a previous user of Assimp and you update the library to revisions beyond SVNREV 502, you have to adapt your animation loading code to match the new quaternion orientation.