Loading certain GLTF assets causes extreme lag

[ethereumdegen]

Bevy version

0.15 -- this has happened since 0.12 and STILL happens

What you did

Load in certain GLTF models

What went wrong

There is a warning in the console while it loads
2025-02-16T01:22:29.929757Z WARN bevy_gltf::loader: Unknown vertex attribute COLOR_1
2025-02-16T01:22:29.992113Z WARN bevy_gltf::loader: Unknown vertex attribute COLOR_1
2025-02-16T01:22:29.992163Z WARN bevy_gltf::loader: Unknown vertex attribute COLOR_2
2025-02-16T01:22:29.998664Z WARN bevy_gltf::loader: Unknown vertex attribute COLOR_1
2025-02-16T01:22:29.998715Z WARN bevy_gltf::loader: Unknown vertex attribute COLOR_2
2025-02-16T01:22:30.001401Z WARN bevy_gltf::loader: Unknown vertex attribute COLOR_1
2025-02-16T01:22:30.010192Z WARN bevy_gltf::loader: Unknown vertex attribute COLOR_1
2025-02-16T01:22:30.010268Z WARN bevy_gltf::loader: Unknown vertex attribute COLOR_2

Then , in my game, i get 20 fps instead of 120 fps. And mind you the model isnt being rendered its just READY to be rendered. its loaded.

[alice-i-cecile]

Can you upload or link a problematic model? We can't reproduce this without one.

[torsteingrindvik]

When exporting from Blender it's important to select the option to generate mesh tangents.

Are they missing? I remember in the past that they were generated on GLTF load and it being very time consuming.