Half Top and Bottom Flat 3D Video Not Displaying Correctly in DeoVR

Sunnysidestreet

I have a Flat 3D video recorded from gameplay, formatted in Half Top and Bottom (Half-TAB).
The resolution of the video is 3840×2160, with left and right eye views arranged vertically—each occupying 3840×1080 pixels.
※ Please note: this is not Full-TAB (where each eye view is full-sized vertically), but Half-TAB, meaning each eye view is compressed to half the vertical resolution.

I have two questions regarding playback behavior:

Local playback issue
When I play the video locally using the DeoVR app and rename the file with the "_TB" suffix, it is recognized as a stereoscopic video.
However, the vertical display appears squashed to half its intended height.
What I expect is proper Flat 3D playback at 3840×2160 resolution using the Half-TAB format.
Could you clarify why this happens, and whether there is a correct setting or workaround to display it properly?
Upload playback format issue
When uploading the video to DeoVR, I can choose playback formats.
For Side-by-Side (SBS), there is a Flat 3D option available.
However, for Top and Bottom (TAB), I don’t see any Flat 3D option.
As a result, the uploaded Half-TAB video is treated as a spherical (e.g., 120–360°) video and displayed incorrectly.

Given these issues, does DeoVR currently support Flat 3D playback for Top and Bottom format—specifically Half-TAB?
If there is any recommended way to enable proper playback or a workaround, I would greatly appreciate your guidance.

Thank you very much.

bncecil

Half SBS and TAB have never displayed properly in DeoVR. It does uncompress the aspect ratio and has no option to do so as other media players do.
Something that has been pointed out and requested numerous times.
There is also no way to override the display settings if DeoVR sets the automatically. Something that has been requested over and over again.

Sunnysidestreet

bncecil

Thank you very much for your reply.

I was not aware that there is currently no proper way to display even Half SBS videos correctly in DeoVR.
I also didn’t realize that playback issues with Half-format videos have been pointed out multiple times in the past.
I apologize for repeating a topic that has already been discussed.

P.S. This is slightly off-topic,
but I recall seeing a post from someone requesting an option to hide videos that were converted from 2D to 3D.
Considering that even “genuine” 3D videos in Half-TAB or Full-SBS format cannot be properly displayed in DeoVR, I can now understand why pseudo-3D converted videos have become more common. In a way, it seems like a natural consequence of the current playback limitations.