You need to have the 3D modeling software installed to import proprietary files directly into Unity. Alternatively, you can export an FBX file from Cinema4D instead. To continue using Cinema4D files in Unity for versions 2019.3 and later, install Maxon’s Cinema4D importer. Note: As of Unity 2019.3, Unity no longer provides built-in support for Cinema4D files. This can take a while, but subsequent imports are very quick.
The first time you import a proprietary file into Unity, the 3D modeling software has to launch in a command-line process. Unity then communicates with that proprietary software to convert the native file into a format Unity can read. When Unity imports a proprietary file, it launches the 3D modeling software in the background. For more information about limitations with these file formats, see SketchUp Settings and SpeedTree. However, there are two file formats that do not use FBX as an intermediary: SketchUp and SpeedTree. Note: This page contains guidance on using proprietary file formats that use FBX conversion.
For more information, see Model file formats. You should not use these file formats in production instead, export to the. Unity supports a number of proprietary model file A file containing a 3D data, which may include definitions for meshes, bones, animation, materials and textures.
