glTF files are a new file format that works pretty naturally with WebGL. There are exporters for many different CAD packages. The reason I like glTF files is that getting a proper export is fairly straightforward. Lightwave OBJ files are an industry standard, but in the case of React, not all of the options are imported. One major one is transparency. The OBJ file format allows that, but at of the time of writing this book, it wasn't an option. Many other graphics shaders that modern hardware can handle can't be described with the OBJ file format.
This is why glTF files are the next best alternative for WebVR. It is a modern and evolving format, and work is being done to enhance the capabilities and ...
