Let's start from the top; our first task is setting up Unity and developing HoloLens applications. In this section, we will walk through setting up Unity, create a simple scene, and finally; deploy it to the emulator and device to ensure that everything is set up correctly.
At the time of writing, you will need to use Unity HoloLens Technical Preview or Unity Beta 5.5b9 or greater; you can find details at the official Unity site, http://www.unity.com. In addition, it would be useful to download and install the HoloLens emulator, which can be downloaded from http://go.microsoft.com/fwlink/?LinkID=823018. Lastly, ensure that you have Visual Studio 2015 with Update 3 installed.
Once downloaded and installed, launch Unity and create a new 3D project, as shown in the following screenshot:
After clicking on the Create project...