Image zoom setting

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  • #222532
    inn1950
    Participant

    I use full VR mode, and set doom 3 game image zoom value 0.65, so it looks like 16:9 screen

    But on lower side screen have black area

    Can someone tell me how to erase this?

    #222533
    Ralf
    Keymaster

    When you lower the image zoom setting, you get black bars above and below the image. That’s how the zoom works. Alternatively you can instead set an ambience colored background after clicking on ‘More FullVR settings’ in the menu if you prefer that.

    The black area below the image is a bit larger than above since VR headsets use an asymmetric view frustum where more pixels are shown below the eye than above to have more precious pixels where it counts. A neat optimization that factors in human vision, which focuses more on things below your eyes than above in the sky. Since the the game was rendered with its usual symmectric frustum, you end up with more space below than above the image when you zoom out.

    #222535
    Boblekobold
    Participant

    @inn1950 : If you want to avoid the black area while displaying the entire view, don’t use a 16:9 resolution if your VR headset isn’t 16:9. Usually 4:3 is better (it depends on the VR headsset).
    You can choose a very high 4:3 (2880×2160 minimum for full VR) or “1:1” resolution with the Virtual Monitor (Vorpx Desktop Viewer).
    OF course the game must allow this resolution but it’s usually not a problem.

    #222882
    Domyos
    Participant

    Hello, inn1950

    Are you using a Quest 3?

    It seems that several Quest 3 users have encountered this black bar issue on the forum, as well as in YouTube comments and the Oculus channel on the unofficial VorpX Discord server.

    #222883
    Ralf
    Keymaster

    When you lower the image zoom setting, you get black bars above and below the image. That’s how the zoom works. Alternatively you can instead set an ambience colored background after clicking on ‘More FullVR settings’ in the menu if you prefer that.

    The black area below the image is a bit larger than above since VR headsets use an asymmetric view frustum where more pixels are shown below the eye than above to have more precious pixels where it counts. A neat optimization that factors in human vision, which focuses more on things below your eyes than above in the sky. Since the the game was rendered with its usual symmectric frustum, you end up with more space below than above the image when you zoom out.

    In addition to that:

    If you want to utilize the full screen of your Quest3, set the image zoom to the max. Unless capped on purpose to deal with game quirks (like in Cyberpunk) that will ensure the screen is used fully. To make sure profiles and potnetial setup instructions for user profiles are universally correct, per default everything is setup the same way on each headset, reflecting roughly the original Oculus Rift FOV. You can however adjust that to your liking, unless – again – the zoom is capped on purpose to deal with game quirks.

    Caveat: As Boblekobold pointed out in the other thread, you will have to adjust the game FOV accordingly in games where vorpX doesn’t do that automatically.

    More detailed information about how FOV and ImageZoom are two sides of the same coin can be found in the vorpX help.

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