When enabling MSAA in XR mode (Quest 2 or PICO 4), there are abnormalities in the effect.

[maxiaoxr]

Godot version

v4.1.2.rc.custom_build

System information

Android9.0 - Godot_v4.0-rc3 - Vulkan and GL3(Mobile and Compatibility)

Issue description

Enabling MSAA in Mobile mode on PICO4 and Quest2 results in a black screen, while enabling MSAA in Compatible mode has no effect.

Steps to reproduce

Scenario One

1. Project Settings -> Render -> gl_compatibility
2. Project Settings -> Anti-aliasing -> MSAA 3D (4x)

Scenario Two

1. Project Settings -> Render -> gl_moblie
2. Project Settings -> Anti-aliasing -> MSAA 3D (4x)

Minimal reproduction project

pico_test.zip
This projection can run in Quest2,if you want to run in PICO4,you should change the option when you export apk.

[Calinou]

Thanks for the report! Consolidating in #67204 and #69462.