WIP Stereoscopic 3D support for half/full SBS, over/under, etc
(2014-01-17, 22:30)eiha Wrote: I've got the exact same problem with hsbs/sbs.

If I had used Half-OU for sbs or vice versa I would have know instantly cause it would be a total mess(?).

It doesn't create a mess. I just tried to display a Half-SBS file on a 1080p monitor with preferred mode set to OU. XBMC switched to OU when I started the movie and displayed it as Half-OU. This means that XBMC actually moves the halves around and scales the new image back to the original size, which means that you lose a lot of the original video information in that process.

For example, let's say you have a Half-OU file, but XBMC is set to SBS. I don't know the correct order of these processes, but I think it would go something like this:

Start with Half-OU (1920x1080)
Split top and bottom halves, place them side by side to create half height SBS (3840x540)
Scale to Half-SBS (1920x1080)

So now the Half-OU file is displayed as Half-SBS, however each half was resized from 1920x540 to 920x1080 which actually means that you lost half of the original resolution.

Think of it this way: When you display a Half-SBS file, the tv has to scale a 960x1080 picture to 1920x1080 for each eye, so each frame is half-resolution. If you convert it to Half-OU first, each frame is scaled down from 960x1080 to 960x540 first and then scaled back up to 1920x1080, so each frame is only quarter resolution.
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Messages In This Thread
RE: Stereoscopic 3D support for half/full SBS, over/under, etc - by Enkhil - 2014-01-17, 23:58
Intel® InTru™ 3D support - by acidizer - 2014-01-26, 12:47


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