If you are on your desktop machine and open the Prospect Viewer, but upon loading your 3D model and launching into virtual reality the image you see on your monitor is that of a concrete texture, here are the items to troubleshoot for:
1. Verify that your virtual reality headset is connected to your computer. Prospect software will not launch unless a headset device is connected.
2. If you are using an Oculus Rift, please confirm that you are using the latest version of Oculus Home, which can be found here: Oculus Setup