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Fixed in 2022.1.X



Found in




Issue ID




[Mobile] Tessellation Shader is broken when using Vulkan Graphics API

Mobile Graphics


How to reproduce it:
1. Open the user's attached project ''
2. In the Player Settings set a specific Graphics API for specific platform (see below)
3. Build and Run it on the device
4. Observe the sphere's texture in an app

Expected result: Dark artefacts appears on a material
Actual result: There are no artefacts on a material

Reproducible with: 11.0.0 (2021.2.0b3), 12.0.0 (2022.1.0a1)
Could not test with: 2018.4.36f1 (URP is not introduced yet), 7.6.0 (2019.4.29f1), 10.5.0 (2020.3.14f1), 11.0.0 (2021.1.14f1) (due to errors after downgrading a project)

Reproducible on:
VLNQA00122, Samsung Galaxy S9 (SM-G960F), Android 10, CPU: Snapdragon 855 SM8150, GPU: Mali-G72
VLNQA00331, Huawei P20 lite (ANE-LX1), Android 9, CPU: HiSilicon Kirin 659, GPU: Mali-T830
VLNQA00321, Xiaomi MI 9 (MI 9), Android 10, CPU: Snapdragon 855 SM8150, GPU: Adreno (TM) 640
VLNQA00013 - Galaxy S6 Edge+ (SM-G928F), OS: 7.0.0, CPU: Exynos 7 Octa (7420), GPU: Mali-T760
- Android Standalone with Vulkan Graphics API;

Not reproducible on:
- macOS Standalone with Metal Graphics API;

Could not test on:
VLNQA00285, Samsung Galaxy J4 Core (SM-J410F), Android 8.1.0, CPU: Snapdragon 425 MSM8917, GPU: Adreno (TM) 308 - pink screen
VLNQA00038, Htc Desire 510 (HTC Desire 510), Android 4.4.3, CPU: Snapdragon 410 MSM8916, GPU: Adreno (TM) 306 - app doesn't load
VLNQA00042, Lge LG G3 (LG-D855), Android 5, CPU: Snapdragon 801 MSM8974AC, GPU: Adreno (TM) 330 - app doesn't load

  1. Resolution Note (fix version 2022.1):

    Not reproducible anymore with 2022.2.0b7

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