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Fixed in 2020.2.X

Fixed in 2019.4.X, 2020.1.X



Found in




Issue ID




Additional images are rendered when RenderOnDemandRendering.renderFrameInterval() is set to > 1

URP Features


How to reproduce:
1. Open the "SampleScene" Scene in the attached "" Unity project
2. Build and run on an Android or iOS device
3. Press the "Render Inteval" button to change the OnDemandRendering.renderFrameInterval() value between 1 and 3
4. Observe the red image on the screen

Expected result: the Image's opacity does not change or no additional semi-transparent images are rendered
Actual result: the image's opacity changes or additional images are rendered on top of each other

Reproducible with: URP 7.1.1, 7.1.7, 7.1.8, 7.2.0 (Unity 2019.3.1f1, 2020.1.0a23)
Not reproducible with: URP 7.0.0
Could not test with: 2019.2, 2018.4, 2017.4 due to URP not being available; URP 7.0.1 due to builds being unsuccessful

Reproduced with:
VLNQA00296 iPhone 11 iOS 13.0
VLNQA00244 iPhone 7 Plus, IOS 12.0
VLNQA00288, Samsung Galaxy J7 (SM-J730F), Android 8.1.0, CPU: Exynos 7 Octa 7870, GPU: Mali-T830

1. Not reproducible in Play Mode in the Editor
2. The behavior is reproducible when OnDemandRendering.renderFrameInterval() is set to a value bigger than 1
3. On version 2019.3.0a10 (URP 7.0.0) the issue is not reproducible in Play Mode, because the image's opacity increases upon entering Play Mode; the image gets more opaque in the Scene view when the Editor is unfocused and refocused continuously.

  1. Resolution Note (fix version 2020.2):

    Fixed in 2020.2.0a6

Comments (7)

  1. ThainaYu

    Aug 06, 2020 03:39

    Why this haven't backported yet?

  2. huanle

    Aug 01, 2020 07:05

    Will it be fixed in unity2019.4.4?

  3. HiQStockholm

    Jul 21, 2020 14:36

    Sorry, No edit button, and forgot to mention that this happens on desktop windows.

  4. HiQStockholm

    Jul 21, 2020 14:29

    Happens on a Canvas in Screen Space - Camera render mode in 2019.4.4f1. (Works in Editor)
    Tried updating to version 2020.2.0a18 after that it crashes every time.

  5. MartySa_

    Jul 02, 2020 05:37

    Got the transparency issues with 2019.4.1.f1 Is a fix coming to this branch?

  6. Egil-Sandfeld

    Jun 15, 2020 09:26

    Got the transparency issues with 2019.3. Is a fix coming to this branch?

  7. FcsVorfeed

    May 24, 2020 12:39

    Will it be fixed in unity2019.3?

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