Use material name for mesh entity's Name when available (#19287)
# Objective
Fixes #19286
## Solution
Use material name for mesh entity's Name when available
## Testing
Test code, modified from examples/load_gltf.rs
```rust
//! Loads and renders a glTF file as a scene.
use bevy::{gltf::GltfMaterialName, prelude::*, scene::SceneInstanceReady};
fn main() {
App::new()
.add_plugins(DefaultPlugins)
.add_systems(Startup, setup)
.add_observer(on_scene_load)
.run();
}
fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
commands.spawn((
Camera3d::default(),
Transform::from_xyz(0.7, 0.7, 1.0).looking_at(Vec3::new(0.0, 0.3, 0.0), Vec3::Y),
));
commands.spawn((DirectionalLight {
shadows_enabled: true,
..default()
},));
commands.spawn(SceneRoot(asset_server.load(
GltfAssetLabel::Scene(0).from_asset("models/FlightHelmet/FlightHelmet.gltf"),
)));
}
fn on_scene_load(
trigger: Trigger<SceneInstanceReady>,
children: Query<&Children>,
names: Query<&Name>,
material_names: Query<&GltfMaterialName>,
) {
let target = trigger.target();
for child in children.iter_descendants(target) {
let name = if let Ok(name) = names.get(child) {
Some(name.to_string())
} else {
None
};
let material_name = if let Ok(name) = material_names.get(child) {
Some(name.0.clone())
} else {
None
};
info!("Entity name:{:?} | material name:{:?}", name, material_name);
}
}
```
---
## Showcase
Run log:
<img width="859" alt="Image"
src="https://github.com/user-attachments/assets/87daddf3-31e6-41f8-9be2-4b292da9b75a"
/>
---------
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
Co-authored-by: Greeble <166992735+greeble-dev@users.noreply.github.com>
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