Microsoft HoloLens Developer???s Guide

Fixing the camera

We need to fix the camera a bit though. Remember when we started up the emulator and everything was black? The reason for this is that anything that is rendered black in the device is going to be transparent. The reason for this is quite straightforward--the device adds light points to the real world and black would mean it removes light points from the real world. This is unfortunately physically impossible. So anything that is black will not get any light point and is, therefore, transparent. We need to change this here as well. Select the Main Camera in the left side and see how the properties appear on the right-hand side in the inspector . This is where we can make changes to our assets, in this case, our camera.