Broken texture gathering on 4.1/4.1.1/4.2

[Lilaa3]

Describe the bug
Gathering textures does not work on complex shader nodes, might have something to do with repeated sampling of the same texture (in my example used to recreate 3 point filtering)

To Reproduce
Export the provided file with default settings in binary or json mode, pause with a debugger to see the excessive recursion

Expected behavior
Either fail to gather anything and move on or find at least the first sampled texture

.blend file/ .gltf (mandatory)
example.blend.zip

Version

• os: linux (debian based, specifally mint edge latest)
• blender 4.1.1, not using flatpak

Additional context
These nodes are linked and manipulated automatically by fast64 and can have many combinations, including more than one texture being used with multiple samples, but if more convinient I can provide more examples

[Lilaa3]

The addon is also fully failing to pick up on vertex colors being used in nodes

[julienduroure]

Hello,
I am not sure to get your entire node tree, as you didn't pack linked data.

As far as I can see (for now), your node setup doesn't have any Principled Shader node, so nothing can be exported, as glTF is based on PBR materials, so a Principled Node is needed.

You can refer to Blender Documentation to get what is compatible with glTF
https://docs.blender.org/manual/en/latest/addons/import_export/scene_gltf2.html

[Lilaa3]

example.blend.zip
The issue isn´t that nothing can be exported, the addon seems to be trying to find textures during gather_image by iterating through the nodes, and its falling into some form of infinite recursion

[Lilaa3]

I also tested 4.2 and 4.3

[Lilaa3]

@julienduroure I understand this is probably low prioraty but is there any updates?