GLTFDocument.append_from_scene executed on non-ui thread cost tool much time compared to on ui thread.

[didong-lin]

Tested versions

Reproducible in Godot v4.0.4.stable

System information

Mac & Android & iOS - Godot v4.0.4.stable

Issue description

try to execute GLTFDocument.append_from_file on ui thread and non-ui thread respectively, the time cost on non-ui thread is much higher than on ui thread. for example, in the minimal reproduction project, append on ui thread time cost: 3436ms,
but append on other thread time cost: 117287ms
Hope to see your replay as soon as possible! Thanks so much!

Steps to reproduce

run the MRP Main.tscn to check result

Minimal reproduction project (MRP)

MinimalProject.zip

[fire]

Can you try later versions of Godot Engine to see if the time changes?

[didong-lin]

Can you try later versions of Godot Engine to see if the time changes?

Thx for your reply, just tested on godot 4.3
raised this error:
E 0:00:03:0670 Main.gd:35 @ appendFromScene(): This function in this node (/root/Node3D/@node3d@2) can only be accessed from either the main thread or a thread group. Use call_deferred() instead.
<C++ Error> Condition "!is_readable_from_caller_thread()" is true. Returning: (false)
<C++ Source> scene/3d/node_3d.cpp:821 @ is_visible()
Main.gd:35 @ appendFromScene()
Main.gd:26 @ ()