Realistic simulation in the virtual world

People wear Samsung Gear VR devices as they attend the launching ceremony of the new Samsung S7 and S7 edge smartphones during the Mobile World Congress in Barcelona, Spain, February 21, 2016. For that, the VR equipment software must be powerful enough to produce high-resolution and high-quality images, while the display hardware should be of high quality to support the high-quality images. Moreover, high-resolution images, as well as the software, take up huge storage space; VR service providers need bigger hard disks to store, and wider bandwidth to transmit them. Aviation companies and militaries sometimes use another kind of VR in their training－covering the walls and the roof with high-quality, high-density displays so that trainees feel as if they are in a new world.