Unity Issue Tracker - Transparent materials disappear due to FullScreenRenderPass on Quest when Multiview/SPI is used with MSAA on OpenGLES3

Won't Fix

6.5.X

6.4.X

6.3.X

6.2.X

6.1.X

6.0.X

Thank you for reporting a bug to Unity. 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. Today we will be closing this case. Thank you again for taking the time to report this issue, and please let us know if there is anything else that changes the impact or severity of this issue.

Unity 6000.2 has reached its end of life and will not receive further updates. If you need additional fixes, please upgrade to a newer Unity version.

Closing port due to end of life support for 6000.1

Steps to reproduce:
1. Open the attached user's project "MSAA_SPSBlit.zip"
2. Switch to Android Platform
3. Ensure OpenGLES3 is set as the Graphics API and Multiview/Singlepass Instanced is selected
4. Ensure MSAA is enabled in the Main Camera
5. Build to a Quest 3/3S devices
6. Turn the HMD around and observe the transparent materials on the rendered UI Objects disappearing

Expected Results: transparent materials on the rendered UI Objects do not disappear
Actual Results: transparent materials on the rendered UI Objects disappear

Reproducible with: 6000.0.51f1, 6000.1.8f1, 6000.2.0b6
Could not test with 2021.3.52f1 and 2022.3.63f1 due to shader and TMP related build errors

Reproducible with these devices:
VLNQA00644 - Oculus Quest 3S (Quest 3S), CPU: Google Tensor G2, GPU: Adreno 740, OS: 14
VLNQA00609 - Oculus Quest 3 (Quest 3), CPU: Snapdragon XR2 Gen 2 (SM8550), GPU: Adreno 740, OS: 12

Environment tested: Windows 11 24H2

Notes:
-Reproduces only if MSAA (2x,4x,8x) is enabled
-Reproduces only with OpenGLES3
-Reproduces only with Multi-view/SinglePass Instanced
-Reproduces with both OpenXR and OculusXR plugins

Transparent materials disappear due to FullScreenRenderPass on Quest when Multiview/SPI is used with MSAA on OpenGLES3

Unity: Graphics XR

Won't Fix

Prioritise and Follow this issue

Have a workaround or additional info about this issue?

Transparent materials disappear due to FullScreenRenderPass on Quest when Multiview/SPI is used with MSAA on OpenGLES3

Unity: Graphics XR

Statuses

Won't Fix

Resolution Notes

6.2.XWon't FixUnity 6000.2 has reached its end of life and will not receive further updates. If you need additional fixes, please upgrade to a newer Unity version.

6.1.XWon't FixClosing port due to end of life support for 6000.1

Description

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Have a workaround or additional info about this issue?