Since you are using Vray, this is the process you would use to set up a panoramic render... 1st place your camera at eye level in the middle of the room that you want to render. 2nd, in the Vray render setup menu, go to the Vray Camera rollout and in the type selection box select spherical, then under that in the FOV box type in 360. 3rd thing to do will be to set up your resolution for the render, which has to be at a image aspect of 2.0, for example width 6000 x height 3000. Lastly, make sure your Vray settings are the way you want them, then render. Once you have the render completed, you can use a Easypano product like Panoweaver or Tourweaver to view your panorama. Hope this helps you!
