While most people focus on the compute and graphics requirements for virtual reality, storage is the bigger problem going forward. Today's storage works with 1080p (2160 combined) -- barely -- but 4k VR requires much more. Here's what you need to know.
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While most people focus on the compute and graphics requirements for virtual reality, storage is the bigger problem going forward. Today's storage works with 1080p (2160 combined) -- barely -- but 4k VR requires much more. Here's what you need to know.
The way to an immersive and non-sickening VR experience are representation that are point by point and smooth. Today's 1080p frameworks are OK, however a long way from perfect. For perfect we need to go to 4k since the presentations are so near our eyes, with none of the casing dropouts or tearing that make individuals wiped out. While 4k content requires 4x the capacity limit of 2k (1080) content, it is capacity transmission capacity that will compel expensive framework overhauls. We should run the numbers.
The numbers:
UHD presentations are 3840x2160 or 8,294,400 pixels. Accept each pixel is encoded with 32-bit RGB, so each match of edges requires 8,294,400 x 32 = 33.2 MB/sec or 32.4MiB/sec.
How about we accept that 4k VR utilizes the same 90Hz revive rate as the Oculus Rift and HTC Vive. That implies 2 new casings each 11.11ms.
Obviously, the framework needs some an opportunity to render the 4k pictures. In the event that we permit a large portion of the render time (5.6ms) to be given to perusing information from capacity, we get 500ms to move (90 x 33.2MB = 2.988GB) of substance. So we require 5.976GB/sec. How about we call it 6GB/sec of data transfer capacity.
Rendering definite 4k pictures may require more than 5.6ms for each casing. All things considered, the data transfer capacity necessity rises. In the event that rendering requires 700ms of consistently, then the framework needs to move 2.988GB in 300ms or 9.9GB/sec.
The problem
While 16 paths of PCIe 3.0 can without much of a stretch handle the data transfer capacity prerequisite of the last case, the issue is capacity transmission capacity. The speediest purchaser SSDs today beat out at around 3.5GB/sec, so you'd have to stripe a few of them to deal with 4k VR.
Given that quick SSDs aren't shabby, you could without much of a stretch spend as much on capacity transfer speed as you accomplish for whatever is left of the framework. Strangely, in spite of the way that Rift and Vive just bolster Windows, it is Apple that is driving the route in high-data transfer capacity SSDs on note pads.
The Storage Bits take
While porn drove a significant part of the web's initial business advancement, it would seem that VR will drive shopper stockpiling. Expecting, obviously, that VR turns into a mass market. If not, capacity alone will guarantee it remains a specialty advertise.
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