UnityMeshImporter

Runtime mesh importer for Unity using AssimpNet. This mesh importer creates UnityEngine.GameObject from mesh files.

Update: Tested on Linux, macOS and Windows.

What is Assimp?

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.

By Wikipedia

This project uses C# .NET wrapper for the Assimp, AssimpNet

Supported file formates are listed here.

Quickstart

Before you start, you may need to install minizip package by

$ sudo apt install minizip

1. Install "com.donghok.meshimporter" package as follows: In the Packages directory of your Unity project,

   $ git clone https://github.com/eastskykang/UnityMeshImporter.git com.donghok.meshimporter

   or

   Open Packages/manifest.json and add "com.donghok.meshimporter":"https://github.com/eastskykang/UnityMeshImporter.git" to the "dependencies" list.

2. As the package is imported, you can use UnityMeshImporter as follows:

   using UnityMeshImporter;
   
   string meshFile = <YOUR-MESH-FILE-PATH>;
   var ob = MeshImporter.Load(meshFile);

3. The mesh importer uses Unity "Standard" shader. Please add Standard shader to Project Settings > Graphics > Built-in Shader Settings > Always Included Shaders.

Unity Example

See the following examples:

• UnityMeshImportExample
• RaiSimUnity