GPUParticles2D does not emit particles on macOS with compatibility backend (Intel)

[phkeese]

Godot version

v4.0.rc1.official [8843d9a]

System information

macOS Ventura 13.1, Intel MacBook Air 2020, Intel Iris Plus Graphics

Issue description

When using the compatibility backend, GPUParticles2D does not show any particles. Changing to the mobile backend does show particles.

Steps to reproduce

1. Create a new project using the Compatibility backend
2. Add a 2D scene with a GPUParticles2D node and a texture assigned to that
3. Observe no particles being emitted
4. Change to Mobile backend and restart engine
5. Observe particles being emitted

Minimal reproduction project

Minimal.zip

[phkeese]

This issue is not present on Windows 10 with an RX 580 8GB

[clayjohn]

Related #72469

[clayjohn]

I couldn't identify an acceptable solution that we could merge for 4.0. Unfortunately, that means this will have to wait for 4.1 when we add the ANGLE backend in #72831

[dcrawl]

On my M1 Macbook Air, adding a GPUParticles2D Node in Compatibility mode crashes Godot v4.0.3.stable.official [5222a99] every time. Even with just a new project and adding the Particles node to a Node2D will crash Godot.

It works fine in Forward+.

[Calinou]

On my M1 Macbook Air, adding a GPUParticles2D Node in Compatibility mode crashes Godot v4.0.3.stable.official [5222a99] every time. Even with just a new project and adding the Particles node to a Node2D will crash Godot.

It works fine in Forward+.

The crash on Apple Silicon GPUs is tracked in #72469.

[bruvzg]

For the reference, I can confirm crash with native GL on M1 Mac, and it is fixed by applying #72831 and using ANGLE over Metal renderer.