There's a way with SamsungGearVR to do it, but i can't find anyway to do it with the Rift. There's an application 360 photos for Rift but i don't know and there is no tutorials on how to view your downloaded panoramas
One program is Oculus 360 Photos. Place the panoramas in the Pictures \ OculusPhotos directory (for example, mine is: C:\Users\kojack\Pictures\OculusPhotos) When you start the program go to the bottom menu option: My Photos.
The program is a little fussy on specs for the photos. They must have a 2:1 aspect ratio and contain a 360x180 spherical panorama. The most likely problem will be panoramas that don't do 180 vertical (such as the NASA Mars panoramas), they will look very bad if you don't pad them out to the correct ratio.
One program is Oculus 360 Photos. Place the panoramas in the Pictures \ OculusPhotos directory (for example, mine is: C:\Users\kojack\Pictures\OculusPhotos) When you start the program go to the bottom menu option: My Photos.
The program is a little fussy on specs for the photos. They must have a 2:1 aspect ratio and contain a 360x180 spherical panorama. The most likely problem will be panoramas that don't do 180 vertical (such as the NASA Mars panoramas), they will look very bad if you don't pad them out to the correct ratio.