Pico4 VR Headset crashes on scene with MeshInstance3D

[RevolNoom]

Godot version

v4.0.2.stable.official.7a0977ce2

System information

Dell Inspiron 3580: Intel® Core™ i7-8565U × 8, Ubuntu 22.10, HAINAN / Mesa Intel® UHD Graphics 620 (WHL GT2) ---------------------------------- Pico4: System version 5.4.0, Qualcomm Snapdragon XR2, Android 10

Issue description

Pico4 can't render MeshInstance3D, and after running for a few seconds, the application crashes.

When remote debug, the editor prints:

Installing to device (please wait...): Pico A8110
--- Device API >= 21; debugging over USB ---
--- DEVICE API >= 21; DEBUGGING OVER USB ---
Reverse result: 0
Godot Engine v4.0.2.stable.official.7a0977ce2 - https://godotengine.org
OpenXR: Running on OpenXR runtime: Pico(XRT) by Pico et al 'c4eb070c' 3.0.1
OpenXR: XrGraphicsRequirementsVulkan2KHR:

• minApiVersionSupported: 1.0.0
• maxApiVersionSupported: 1023.1023.1023
  Vulkan API 1.1.128 - Forward Mobile - Using Vulkan Device #0: Qualcomm - Adreno (TM) 650

And Debugger prints out these errors:

Here's the good scene:

And here's not:

Project settings:

Export settings:

This is a video of godot running the scene with a MeshInstance3D floor. Pico4 renders slowly (like, 4-5 frames/sec?), the MeshInstance is nowhere to be seen. After a few seconds, it crashes.

pico4break.mp4

Steps to reproduce

Export the scene to Pico, and then it will run briefly before crashing.

Minimal reproduction project

N/A

[BastiaanOlij]

This is likely an issue on the PICO side. There is a driver bug in the Vulkan driver. PICO already has an updated driver but it needs to go through QA before it is pushed out to the devices.

For now use the gl_compatibility renderer instead.

[RevolNoom]

@BastiaanOlij well, that's another problem. I'm already using Compatibility mode (as my scene setup picture), but somehow, it always run Vulkan on Pico. Pico problem too?

[BastiaanOlij]

@RevolNoom, that's an unfortunate usability issue in the UI

The dropdown only effects Godot running on desktop, you need to go into project settings and set the renderer used on mobile separately:

[RevolNoom]

@BastiaanOlij Thank you. I got it running now. That was a frustrating few days...

[Calinou]

See #72461 which should improve the situation regarding the dropdown.