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Distances in Unity aren't making sense on device/in emulator

Discussion in 'VR' started by WithinRafael, Aug 13, 2016.

  1. WithinRafael

    WithinRafael

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    I have three cubes at 5, 10, and 15 units away, relative to the camera. When I deploy this to the device/emulator, these cubes are clearly not 5, 10, or 15 meters away -- what's the true relation between units and meters?

    Everyone I've asked thus far seemed confused -- it's very concerning, I must admit. Are people just eyeballing this stuff?

    Test project: https://1drv.ms/u/s!AnjdAnZZcu-GotcPOOXwwBxn6EYgWg

    Screenshot attached.
     

    Attached Files:

    WithinRafael, Aug 13, 2016
    #1

  2. Tautvydas-Zilys

    Tautvydas-Zilys

    Unity Technologies

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    1 unit is definitely 1 meter. On the real device it is. How do you know it's not in the emulator? I suppose it's kinda hard to measure it there without a real world meter being next to it.
     
    Tautvydas-Zilys, Aug 16, 2016
    #2

  3. WithinRafael

    WithinRafael

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    Deploy it to your real device, do the cubes look like they're at 5, 10, 15 meters away? Mine didn't.
     
    WithinRafael, Aug 16, 2016
    #3

  4. Tautvydas-Zilys

    Tautvydas-Zilys

    Unity Technologies

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    Well my room isn't large enough to place it 10 meters away :D. It just appears behind the wall. But 5 units away definitely places it 5 physical meters away from me.
     
    Tautvydas-Zilys, Aug 16, 2016
    #4

  5. WithinRafael

    WithinRafael

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    If you deploy this on device, you won't see the 5 meter cube -- just what appears in the screenshot above. Did you test the attached project? Is the FOV narrower than 60 on the device perhaps? (That's the default in Unity.)
     
    Last edited: Aug 17, 2016
    WithinRafael, Aug 17, 2016
    #5

  6. Tautvydas-Zilys

    Tautvydas-Zilys

    Unity Technologies

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    Camera FoV setting has no effect on the physical device. It will always be constant to what the device can actually display. It's way lower than 60, I can't remember the exact number, though.
     
    Tautvydas-Zilys, Aug 17, 2016
    #6

  7. WithinRafael

    WithinRafael

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    Right, I suspect this is the source of my inconsistent experience. The Unity FOV for HoloLens dev is incorrectly set to 60. I set it to 25.3 which seems to align but how we don't have official numbers this late in the game is mind boggling to me. Hoping you can shed some light on this!
     
    WithinRafael, Aug 17, 2016
    #7