A 3D model represents some kind of 3D content, which may have [encoding](https://schema.org/encoding)s in one or more [MediaObject](https://schema.org/MediaObject)s. Many 3D formats are available (e.g. see [Wikipedia](https://en.wikipedia.org/wiki/Category:3D_graphics_file_formats)); specific encoding formats can be represented using the [encodingFormat](https://schema.org/encodingFormat) property applied to the relevant [MediaObject](https://schema.org/MediaObject). For the case of a single file published after Zip compression, the convention of appending '+zip' to the [encodingFormat](https://schema.org/encodingFormat) can be used. Geospatial, AR/VR, artistic/animation, gaming, engineering and scientific content can all be represented using [3DModel](https://schema.org/3DModel).