Correction is to be made, actual input res is not 3840x2160@80 on V3.
This is resolution for both eyes that HMD receives on DP input.
Here is math for real number for input res/eye,like what is 2160x1200(1080x1200 per eye) in Vive/Rift.
Output res/HMD is 3840x2160@80 (sent through cable)
Render res is: 4096x2657 / eye 8192x2657 total (SteamVR screenshot)
2560h x 1080v per eye/ target res after lens correction output
1080v x 2560h upscale to 1080v x 3840h per eye/ res to send to anx7530.
Real numbers: 2 x 2560 x 1080 , upscaled to 3840 x 1080/eye is signal sent, just inverted 2x1080v x 3840h is actual input that is sent to HMD.
So we have it, Pimax 8K V1-V3, real specs:
input res per eye: 2560x1080 upscaled to 3840x1080 is sent to HMD.
Input res("8K HMD"): 2x2560x1080* *-upscaled to 2160x3840(Vertical x Horizontal)
Like Pimax 4K was with 1440p input(1080p on launch), this is actually 4K per eye HMD but with 2560x1080(Wide 1080p) input per eye. I saw that number 2560x1080 before, I couldn't figure it out why.
Upscale is done on PC, Driver IC does DSC decompression, no upscaling.
Should all backers know this, I think yes. Share if you think the same.
Edit: I knew something is wrong with 2657 number. Its not even number, in tech we usually have multiple of 2 numbers(binary world). This is just random number to confuse backers what is actual vertical res target after lens correction is performed. This can be 1080*1.4 for optimal performance, so 1512. More than that is SS(Steam VR slider), diminishing returns kick in, ok lets assume 1512 is 1x SS, 1.5 SS is beneficial 2268 could be actual number in use, who then just put 2657, notice 657, lol almost 567... This was sloppy job, it's 2017 guys... You want to hide things from internet?
@moderators no comment I guess?