[3.x] Error initializing GLAD with a specific project on Windows with an AMD GPU

[aaronfranke]

Tested versions

Godot 3.6-stable

System information

Windows 11 x86_64, AMD Radeon 6800 XT with Windows Driver Version 32.0.13031.3015 and AMD Driver Version 24.30.31.03-250225a-413647C-AMD-Software-Adrenalin-Edition (lastest update as of today, 2025-04-22)

Issue description

An exported Godot 3.6 project complains about an error initializing GLAD on Windows 11 with an AMD GPU:

The same project runs without issue on Windows computers with Nvidia graphics cards and on Linux computers with AMD graphics cards, but it has this error on my system. If I run the project manager, the editor, and an empty project, those run fine on the same system. The project even fails to launch from the editor, strange because you know, the editor is rendering the game's assets fine:

The same project fails to launch with the same error message with GLES 2.

Steps to reproduce

Run the MRP on a system that has the problem (Windows 11 and AMD GPU) and observe the error.

Minimal reproduction project (MRP)

Project source code: https://drive.google.com/file/d/1UITqpnNGAr53hfQRkPZvcTgEujbTdZa_/view?usp=sharing

Exported game: https://tameno.itch.io/macaroni-planes

[lawnjelly]

This could be the same problem:
https://community.amd.com/t5/pc-drivers-software/radeon-rx-6800-xt-opengl-is-stuck-at-1-1-instead-of-4-6-or/m-p/528506

You may be able to step through RasterizerGLES3::is_viable() into gladLoadGL() to get more info but it sounds very much like the above, which I was reading as a driver / OS / configuration issue.

[aaronfranke]

@lawnjelly That still leaves the question of why Godot can launch the editor and an empty project, but not the runtime of this project (either export template or using the editor executable). What things in RasterizerGLES3::is_viable() can be influenced by the contents of a project?

[lawnjelly]

It could be GLAD_ENABLED isn't set for the editor? I'm not sure I'm trying to track down where it's defined, probably in one of the build files. Your guess is as good as mine, and you may have to step through to see what is happening (as you can reproduce).

I'm not familiar with this part, it's before my time ( <2017 looks like).

Ah actually reading your issue more carefully, the fact that it starts up at all with an empty project is strange.

As well as stepping through, running on a GL caps viewer might yield some info:
https://opengl.gpuinfo.org/download.php