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Bug Unity UI only visible in the left eye with "Single Pass". HDRP. Oculus.

Discussion in 'AR/VR (XR) Discussion' started by Seanmir, Jun 15, 2020.

  1. Seanmir

    Seanmir

    Joined:
    Nov 24, 2015
    Posts:
    3
    Hello everyone,

    I have recently switched my project to the HDRP pipeline and everything seems to be working fine, except the UI.
    I have world canvas in my project and when I use Single pass rendering in Oculus setting, UI is only visible on the left eye (similar to the image attached). It's working fine with the multi-pass.

    I have updated to the latest unity version 2019.4 and the issue is still present.

    Any idea what can cause this problem?
    The UI is a simple world canvas and some images/panels inside.

    [This is how it looks like in VR]
    UI single pass issue.jpg
    [Using Single-pass]
    Oculus single pass.jpg

    Thank you.
     
    Last edited: Jun 15, 2020
  2. a436t4ataf

    a436t4ataf

    Joined:
    May 19, 2013
    Posts:
    1,303
    This has been heavily documented in the forum already - pretty much the exact same thread title.

    I'm not using SRP's (they don't work properly yet in Unity, generally), but it's a combination of: XR + Single-pass + SRP (HDRP) -- so search for HDRP + Single + Eye and you should find them immediately.

    (I've just noticed this same thread in passing, repeatedly :))
     
  3. Seanmir

    Seanmir

    Joined:
    Nov 24, 2015
    Posts:
    3
    ACEstudios likes this.
  4. Kagyu

    Kagyu

    Joined:
    Mar 5, 2016
    Posts:
    90
    Struggling for the same issue here and I could not get any result by searching in the forum with those keyword...
    Can you please kindly provide some links for the thread in which people discuss this issue?

    @Seanmir
    The gamasutra's way worked very basic UI setups for me. I could not find any way to make it work with UI mask component. How the things are going in your case?
     
  5. Seanmir

    Seanmir

    Joined:
    Nov 24, 2015
    Posts:
    3

    Attached Files:

  6. Kagyu

    Kagyu

    Joined:
    Mar 5, 2016
    Posts:
    90
    Thanks for your help, @Seanmir. I tried the graph you gave me but could not make UI mask work.
    As you can see int the image, mask did not work and I could use any tasty UI component with a mask such as ScrollViews or so...
    If you use the graph with UI masks without any issue, can you please let me know your setup? My project is on Unity 2019.4.1f with HDRP 7.3.1. I maybe need to upgrade versions. 2020-07-30.png
     
  7. Dragon-Magic-Studio

    Dragon-Magic-Studio

    Joined:
    Jun 30, 2015
    Posts:
    8
    Thanks @Seanmir the gamasutra tutorial works nice.
     
  8. Kagyu

    Kagyu

    Joined:
    Mar 5, 2016
    Posts:
    90
    Is UI Mask working properly?
     
  9. Dragon-Magic-Studio

    Dragon-Magic-Studio

    Joined:
    Jun 30, 2015
    Posts:
    8
    Yes it works
     
    Kagyu likes this.
  10. Kagyu

    Kagyu

    Joined:
    Mar 5, 2016
    Posts:
    90
    Thanks for replying DiGiCT. Can you provide the information which version of Unity & HDRP you are using, please?
    I tried some versions but could not make UI mask working properly as you can see in the image in my previous post.
     
  11. dubkacik1

    dubkacik1

    Joined:
    Dec 7, 2018
    Posts:
    2
    Hi did you figure it out? I have the same problem.
     
  12. foonix

    foonix

    Joined:
    Dec 15, 2019
    Posts:
    17
    I am not sure when it was fixed, but I'm using Unity 2020.3 and HDRP 10.4, and the standard canvas shaders now render ok in both eyes using the latest XR packages.

    There are still some other issues with canvas interaction with HDRP that make it worth using shadergraphs, but the right eye seems at least to be fixed.
     
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