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Under Consideration for 1.8.X

Votes

0

Found in [Package]

1.8.2

Issue ID

OXRB-233

Regression

Yes

[OpenXR] Average Fill Percent Per Eye is exceedingly high when using Vulkan along Oculus Integration and OpenXR MetaXR Feature which causes significant performance impact

Package: OpenXR Plugin

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Steps to reproduce:
1. Open the attached user project "OpenXR Passthrough Test.zip"
2. Install OVR Metrics tool into the Quest 2 headset
3. Switch to Android in the Editor
4. In CMD prompt or Terminal type in "adb shell ovrgpuprofiling -e/--enable-detailed"
5. Navigate in the OVR Metrics tool to enable the "Average Fill Percent Per Eye" under the Stats Tab
6. Build the project to Quest 2
7. Observe the "Fill" stat

Expected results: No performance impact when using Vulkan along with Oculus Integration and OpenXR MetaXR Feature
Actual results: Average Fill Percent Per Eye is exceedingly high when using Vulkan along Oculus Integration and OpenXR MetaXR Feature which causes significant performance impact

Reproducible in: OpenXR 1.5.0 - 1.8.2 (2021.3.29f1, 2022.3.7f1, 2023.1.7f1, 2023.2.0b4)
Not Reproducible in: OpenXR 1.4.2 (2021.3.11f1)

Reproducible on: Windows 10 2H22
Not reproducible on: No other environment tested

Notes:
-Issue reproduces with Multi-pass and Single Pass Instanced
-Issue only reproduces on Vulkan
-Issue only reproduces with OpenXR
-Issue only reproduces when MetaXR Feature is enabled
-Issue only reproduces when Oculus Integration asset is present

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