What I'd like to do, is create a background that is essentially a sphere that emcompasses the user and apply a 360 photo as a material to the sphere. This would be alternative to just having a static picture or video playing behind the user with segmentation (which is much easier).
The problem I am having is making the sphere large enough so that (since it is hollow) the user is inside the sphere, and the material is applied to the sphere, and we see the inside of the sphere, behind the user as the background.
Now the question is... is this possible? I would just need the sphere to stay stationary the same way that an image background would.