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Won't Fix
Votes
5
Found in
2020.3.46f1
2021.3.20f1
2022.2.9f1
2023.1.0b5
Issue ID
UUM-30269
Regression
No
[Quest 2] Significant performance difference between Vulkan and OpenGLES3 when built with ECS
Reproduction steps:
1. Open the attached project “ReproProject"
2. Install the OVRmetric tool from Meta Developer Hub on Quest 2 device
3. On Quest 2 go to the library and enable the OVRmetric tool
4. Go to File > Build Settings > Player Settings and change Graphics APIs to OpenGLES3
5. Build And Run the project on Oculus Quest 2 device
6. Wait for the Scene to switch in Player and observe the FPS
7. Change Graphics API to Vulkan
8. Repeat steps 5 and 6
Expected result: FPS with Vulkan is about the same as with OpenGLES3
Actual result: FPS is lower with Vulkan
Reproducible with: 2020.3.46f1, 2021.3.20f1, 2022.2.9f1, 2023.1.0b5
Could not test with: 2023.2.0a4 (Crashes with a single line of Stacktrace “0x00007FFF5B984FD9 (KERNELBASE) RaiseException“ when building the project with Vulkan on 2023.2.0a4)
Reproducible with devices:
VLNQA00379, Oculus (Quest 2), Android 10, CPU: Snapdragon XR2, GPU: Adreno (TM) 650
Testing environment: Windows 10 Enterprise 21H2
Notes:
- Player built with 2022.2.9f1, ECS 1.0.0-pre.44 and OpenGLES3 shows 72 FPS and only 50 FPS when built with Vulkan
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Resolution Note:
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We have reviewed the issue carefully, and in this case, the team is unable to prioritize fixing this bug. There are a number of reasons we make this decision, including the impact and severity of the issue across our user and customer base, and the possibility that future plans may solve the problem in a different way, or that a workaround for the bug may be available.
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