You can import a downloaded file from your Unity project. If you need glTF output, you can use this to convert your own content. glTF output can be used to convert your own content if needed. Sketchfab accepts all major 3D file formats for upload, which also means that glTF export provides the easiest way to convert 3D files from one of the supported formats to glTF. This is currently over 300,000 models available for free download under a Creative Commons license, and there are many more in the Sketchfab store. In addition to the original uploaded file format, Sketchfab provides glTF as a standard export for all downloadable models. GlTF is a one-size-fits-all file format designed to seamlessly move 3D files between applications while maintaining a consistent PBR workflow.

What is glTF format? From the description on Sketchfab The details are explained on the SketchFab website as follows. *You may not be familiar with glTF format data. “Sketchfab for Unity” is a free asset that can be downloaded from the Unity Asset Store just like other Unity assets. Sketchfab for Unity allows you to manage the settings of these files centrally from Sketchfab and download them to Unity. Virtual Reality Modeling Language, VRML (.wrl.*Stereolithography, Standard Tessellation Language (.stl.Google Earth, Keyhole Markup Language (.kmz).

Initial Graphics Exchange Specification, IGES (.igs.

In fact, the following file formats are supported, which shows that there is a high degree of freedom in the settings. Sketchfab is a platform for creators to upload their 3DCG files, so the settings are not set for each uploader, and sometimes it is difficult to set the settings in Unity. Uploaded 3D models can not only be viewed in 360° on a web browser while being rotated by mouse operation, but can also be downloaded locally if the 3D model is allowed to be downloaded by the creator at the time of upload. There are more than 30 types of supported files, including common files such as Maya and Blender, and more than 500,000 works have been posted (as of May 2018).

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