We can use our server as a source for Unity3D apps as well. But I have to warn you: the code will look ugly. We will fix this more or less in the next chapter, but for now we just have to live with it.
Create a new Unity3D project and set it up to target the HoloLens. Add something interesting to the scene, such as a cube somewhere. Attach a new script to that cube. This should not pose a problem anymore as we have done it numerous times.
Open the script in Visual Studio.
We do not need Json.NET here. Unity3D has built-in support for JSON. However, the way this library handles JSON data is slightly different, so we have to modify our data structure a bit. This is what I added to my code file:
[Serializable] public ...