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[Android] Sometimes text is not rendered when using OpengLES3 on a Xiaomi Redmi9A device.



How to reproduce:
1. Open the attached project ""
2. Make sure the Scene "WorldText" is selected
3. Build and Run to an Android device

Expected result: "Hello World" and multiple "New Text" messages appear on the screen
Actual result: No messages appear on the screen

Reproducible with: 2019.4.29f1, 2020.3.16f1, 2021.1.17f1, 2021.2.0b7, 2022.1.0a6

Reproducible on:
N/A, Xiaomi Redmi 9A- (M2006C3LG), Android 10, CPU: NOT FOUND, GPU: PowerVR Rogue GE8320
VLNQA00336, Huawei Y6p, CPU: MediaTek MT6762R, GPU: PowerVR Rogue GE8320, Android: 10

Not reproducible on:
VLNQA00380, Xiaomi MI 8 Lite (MI 8 Lite), Android 9, CPU: Snapdragon 660, GPU: Adreno (TM) 512
VLNQA00332, Samsung Galaxy XCover4 (SM-G390F), Android 9, CPU: Exynos 7 Quad 7570, GPU: Mali-T720
VLNQA00381, Xiaomi Redmi Note 8 Pro (Redmi Note 8 Pro), Android 9, CPU: MediaTek Helios G90T MT6785T, GPU: Mali-G76 MC4
VLNQA00004, Meizu MX5 (MX5), Android 5.0.1, CPU: MediaTek Helio X10 MT6795T, GPU: PowerVR Rogue G6200
VLNQA00099, Google Pixel XL (Pixel XL), Android 10, CPU: Snapdragon 821 MSM8996 Pro, GPU: Adreno (TM) 530
VLNQA00052, Xiaomi MI MAX (MI MAX), Android 7.0, CPU: Snapdragon 617 MSM8952, GPU: Adreno (TM) 510

- Does not reproduce when anoter Overlay Camera is added

  1. Resolution Note (2022.1.X):

    We have identified this as a driver bug related to stencil buffer when using multiple renderpass to a rendertarget that is using stencil.

    Possible workarounds
    - Disable URP's Depth Texture (in UniversalRenderPipleineAsset) to avoid generating multiple render passes.
    - Configure URP to use "depth priming" (this will disable copy depth). That option is relatively new and for most projects it's not ideal on mobile.
    - Using ES2 would implicitly use depth-prepass, so this also works (tested it, but the repro project uses "Linear Rendering" and we require ES3 for that)

Comments (1)

  1. Chrisdbhr

    Oct 26, 2021 13:51

    Also happens on Xiaomi Redmi Note 5 build with Unity 2021.1.25f1

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