Anyone know how to unlock 2D/3D automatic mode on You Tube?

I know it has something to do with youtube tags.

I know I can't use YouTube tabs directly on OBS but I have to go into studio.youtube.com and set it up.

If I use "yt3d:enable=true" and "yt3d:enable=LR" those are two of the three tags I need to use.

The question is I can format my video to fit the YouTube format. I can't tell whether you too wants 32 by 9 proper ratio video and then deals with that when left and right are side by side or if it wants 16x9 half width video.

And beyond that point I don't know how to tell it to take just the left or right for 3d mode.

I understand I have to manually test the format and see if the 3D pops which it did for one of the two pictures but I have to make sure the pixel's line right so that corresponding pixels meet each other.
 
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