bevy/examples/3d/load_gltf.rs
Mark Schmale 1ba7429371 Doc/module style doc blocks for examples (#4438)
# Objective

Provide a starting point for #3951, or a partial solution. 
Providing a few comment blocks to discuss, and hopefully find better one in the process. 

## Solution

Since I am pretty new to pretty much anything in this context, I figured I'd just start with a draft for some file level doc blocks. For some of them I found more relevant details (or at least things I considered interessting), for some others there is less. 

## Changelog

- Moved some existing comments from main() functions in the 2d examples to the file header level
- Wrote some more comment blocks for most other 2d examples

TODO: 
- [x] 2d/sprite_sheet, wasnt able to come up with something good yet 
- [x] all other example groups...


Also: Please let me know if the commit style is okay, or to verbose. I could certainly squash these things, or add more details if needed. 
I also hope its okay to raise this PR this early, with just a few files changed. Took me long enough and I dont wanted to let it go to waste because I lost motivation to do the whole thing. Additionally I am somewhat uncertain over the style and contents of the commets. So let me know what you thing please.
2022-05-16 13:53:20 +00:00

54 lines
1.6 KiB
Rust

//! Loads and renders a glTF file as a scene.
use bevy::prelude::*;
fn main() {
App::new()
.insert_resource(AmbientLight {
color: Color::WHITE,
brightness: 1.0 / 5.0f32,
})
.add_plugins(DefaultPlugins)
.add_startup_system(setup)
.add_system(animate_light_direction)
.run();
}
fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
commands.spawn_scene(asset_server.load("models/FlightHelmet/FlightHelmet.gltf#Scene0"));
commands.spawn_bundle(PerspectiveCameraBundle {
transform: Transform::from_xyz(0.7, 0.7, 1.0).looking_at(Vec3::new(0.0, 0.3, 0.0), Vec3::Y),
..default()
});
const HALF_SIZE: f32 = 1.0;
commands.spawn_bundle(DirectionalLightBundle {
directional_light: DirectionalLight {
shadow_projection: OrthographicProjection {
left: -HALF_SIZE,
right: HALF_SIZE,
bottom: -HALF_SIZE,
top: HALF_SIZE,
near: -10.0 * HALF_SIZE,
far: 10.0 * HALF_SIZE,
..default()
},
shadows_enabled: true,
..default()
},
..default()
});
}
fn animate_light_direction(
time: Res<Time>,
mut query: Query<&mut Transform, With<DirectionalLight>>,
) {
for mut transform in query.iter_mut() {
transform.rotation = Quat::from_euler(
EulerRot::ZYX,
0.0,
time.seconds_since_startup() as f32 * std::f32::consts::TAU / 10.0,
-std::f32::consts::FRAC_PI_4,
);
}
}